Class / Patent application number | Description | Number of patent applications / Date published |
303020000 | ELECTRIC CONTROL | 60 |
20080231109 | Brake apparatus - An object of the present invention is to provide a brake apparatus in which a hydraulic pressure in a master cylinder is prevented from being increasingly varied while an anti-lock brake system is in operation, and therefore a pedal feeling can be improved. The brake apparatus comprises an electric booster including an input member which moves forward or backward in response to an operation of a brake pedal, an assist member which moves forward or backward by being driven by an electric actuator using an electric motor as its driving source. The electric booster generates a boosted brake hydraulic pressure in the master cylinder under an input thrust provided to the input member through the brake pedal and an assist thrust provided to the assist member by the electric actuator. In the brake apparatus, the brake hydraulic pressure generated in the master cylinder is supplied to a wheel cylinder through a hydraulic pressure circuit of an anti-lock brake system, and, while the anti-lock brake system in operation, an operation of the assist member is restricted by a booster control, whereby a change in a hydraulic pressure in the master cylinder due to the operation of the assist member can be restrained. | 09-25-2008 |
20080238186 | HYDRAULIC BRAKE SYSTEM - A hydraulic brake system for a vehicle includes a brake having a wheel cylinder that applies a braking force to a wheel, and a pressurizing device. The pressurizing device pressurizes the brake liquid and includes a suction portion for sucking a brake liquid, and additionally includes an output portion connected to the wheel cylinder. A linear solenoid valve includes at least one housing, and is connected to the wheel cylinder and to the suction portion of the pressurizing device. The solenoid valve includes a valve portion having a reciprocating valve member and a valve seat opposed to the valve member. A biasing member biases the valve member in one direction and a solenoid applies a drive force to the valve member in an opposite direction. In addition, a hydraulic-pressure-decrease restraining device restrains a decrease of pressure of the brake liquid in the housing. | 10-02-2008 |
20080290727 | Method for Controlling an Electromagnetic Retarder - A method for controlling an electromagnetic retarder. More specifically, the method relates to determining, in a control unit, a maximum allowable intensity (Im) of an excitation current to be injected into an electromagnetic retarder ( | 11-27-2008 |
20080296968 | Electric trailer brake controller with an adjustable accelerometer mounting - An accelerometer is mounted upon a movable base member that is disposed within an electric brake controller housing with a lever attached to the moveable base, the lever being external to the brake controller housing to allow orientation of the accelerometer within the housing. | 12-04-2008 |
20080309156 | BRAKE CONTROL SYSTEM AND METHOD - A system and method establishes an acceleration of a vehicle which may be used to control a brake system of a towed vehicle towed by a towing vehicle. The system and method establish a gravity vector representing acceleration due to gravity, measure acceleration of the vehicle in a first direction and responsively establish a first acceleration value, measure acceleration of the vehicle in a second direction and responsively establish a second acceleration value, and establish a magnitude of the acceleration of the vehicle in a plane orthogonal to the gravity vector as a function of the gravity vector and the first and second acceleration values. | 12-18-2008 |
20090001806 | METHOD AND SYSTEM TO INCREASE ELECTRIC BRAKE CLAMPING FORCE ACCURACY - The method and system for increasing accuracy of clamping force of electric aircraft carbon brakes, once braking has been commenced, provides a first pair of electric brake actuators with a range of low brake clamping force responsive to low brake clamping force commands, and a second pair of electric brake actuators with a range of high brake clamping force responsive to high brake clamping force commands. The first pair of electric brake actuators is actuated to apply a minimum residual braking force once wheel braking is commenced, and the second pair of electric brake actuators is actuated only when the commanded braking force is in the high range of brake clamping force. | 01-01-2009 |
20090001807 | BRAKE FLUID PRESSURE CONTROL APPARATUS FOR VEHICLE - Brake fluid pressure control apparatus includes: fluid pressure passage from a fluid pressure source to a wheel brake; pressure regulating valve arranged on the passage; pump for feeding pressurized brake fluid to the passage between the valve and the wheel brake; motor for driving the pump; and controller which controls an electric current applied to the valve in accordance with target fluid pressure for the wheel brake to control fluid pressure supplied to the wheel brake. The controller includes: means for converting the target fluid pressure into fluid volume and calculating required flow rate from this fluid volume; means for calculating required rotation speed of the motor from the required flow rate and on the basis of efficiency of the pump; and means for increasing the electric current applied to the valve for a predetermined value when the required rotation speed exceeds actual rotation speed of the motor. | 01-01-2009 |
20090033143 | BRAKING RATIO DEVICE FOR A REMOTE CONTROL MODEL CAR - A braking ratio device for a remote control model is composed of a suspending arm and a ratio device. The suspending arm is fixed with a shaft of a servo motor, having a controlled member formed at its one side and a driving member extended out from one end of the controlled member. The ratio device is provided with a pivotal base pivotally mounted on the controlled member, and a ratio base connected with the pivotal base to be able to move axially. A front brake connecting rod and a rear brake connecting rod are respectively inserted through two sides of the ratio base, to alter the distance between the front brake connecting rod and a front braking set, and also the distance between the rear brake connecting rod and a rear braking set, for creating a time difference of braking for the front and the rear braking sets. | 02-05-2009 |
20090033144 | BRAKE APPARATUS - A brake apparatus includes a master cylinder hydraulically connected to a wheel cylinder, and a booster hydraulically connected between the master cylinder and the wheel cylinder. The master cylinder includes: a first pressure chamber arranged to output brake fluid in accordance with manipulation of an input device, and hydraulically connected to a wheel cylinder; and a second pressure chamber arranged to output brake fluid in accordance with the manipulation of the input device. The booster includes: a booster cylinder; a booster piston movably mounted in the booster cylinder, the booster piston dividing an internal space of the booster cylinder at least into a boost pressure chamber and a back pressure chamber, the boost pressure chamber being hydraulically connected to the wheel cylinder, the back pressure chamber being hydraulically connected to the second pressure chamber; and an electric actuator arranged to actuate the booster piston. | 02-05-2009 |
20090195058 | BRAKE SYSTEM AND METHOD - An electromechanical parking brake system for a heavy vehicle braked by air-actuated service brakes includes an EPB-ECU and a first electromechanical parking brake actuator controlled by the EPB-ECU. The electromechanical parking brake system further includes a redundant sub-system for applying a second parking brake in an event of a failure in the EPB-ECU or the first electromechanical parking brake actuator. | 08-06-2009 |
20090212622 | ELECTRONIC CONTROL BRAKE SYSTEM HAVING SIMULATION FUNCTION - Disclosed is an electronic control brake system capable of ensuing pedal force upon regenerative braking or brake-by-wire control. The electronic control brake system having a simulation function includes a master cylinder for forming oil pressure corresponding to displacement of a brake pedal, an oil tank for providing oil to the master cylinder, a cut-off valve installed on a hydraulic supply pipe that connects an inlet of the master cylinder with an inlet valve of a hydraulic brake, an oil return pipe for connecting an outlet valve of the hydraulic brake with an inlet of the oil tank, and a simulation valve installed on a differential adjusting pipe, which connects the hydraulic supply pipe with the oil return pipe, to generate pedal force. | 08-27-2009 |
20090278401 | ELECTROMECHANICAL BRAKE SYSTEM WITH DISTRIBUTED ARCHITECTURE - A brake system of a vehicle includes a plurality of electromechanical brake actuators (EBAs) proximate the wheels of the vehicle. Each EBA includes a power device for effectuating braking of an associated wheel, and electronics to generate a drive signal for the power device. The brake system may further include at least one brake control unit (BCU) for converting a brake command signal into a control signal for each EBA. The electronics for each EBA may be configured to convert the corresponding control signal into the drive signal that is applied to the power device to cause movement of the power device and effectuate braking of the vehicle. | 11-12-2009 |
20090309413 | VALVE UNIT, ELECTRO-PNEUMATIC BRAKE CONTROL DEVICE HAVING A VALVE UNIT OF SAID TYPE FOR CONTROLLING A PARKING BRAKE, VEHICLE BRAKE SYSTEM HAVING A BRAKE CONTROL DEVICE OF SAID TYPE AND VEHICLE HAVING A BRAKE SYSTEM OF SAID TYPE - A valve unit for an electro-pneumatic brake control is connected to an input of an air-quantity-boosting valve for the aeration/venting thereof. A double-armature solenoid valve includes primary and secondary armatures each spring-loaded and actuated by common magnet coil. The primary armature is a switch for a vent valve; the secondary armature is a switch for an intake valve. When the coil is not drawing current, the armatures are in spring-loaded position, the intake valve blocking intake and the vent valve venting. When a first current flows through the coil, the primary armature enters switching position, with the secondary armature in spring-loaded position; the intake valve blocking intake and the vent valve blocking venting. When a second current greater than the first flows through the coil, both primary and secondary armatures are moved into switching positions, so that the intake valve admits air and the vent valve blocks venting. | 12-17-2009 |
20100072811 | PARKING BRAKE CONTROL UNIT - When a brake force is generated by a service brake in accordance with the depression of a brake pedal by a driver, a brake force generated by an electric parking brake is reduced when lock control is performed, taking the brake force generated by the service brake into consideration. More specifically, a target motor current value increase amount is corrected such that as the brake force generated by the service brake becomes larger, the target motor current value increase amount becomes smaller. Thus, when brake force is generated by the electric parking brake and the service brake compensates for the brake force, it is possible to inhibit generation of a brake force larger than necessary. | 03-25-2010 |
20100090521 | Method for the Calibration of Analogized Valves in a Pressure Control Device - Method in which an electromagnetic valve in an electronically controlled pressure control device is calibrated, wherein the differential pressure prevailing at the valve which is to be calibrated is modulated periodically, and wherein the electrical signal which is present at the valve coil of the valve is evaluated at the valve coil or at an additional measuring coil for the purpose of calibration. Also disclosed is an electronically controlled motor vehicle brake pressure control device in which the above method can be carried out. | 04-15-2010 |
20100133896 | ELECTRONIC CONTROL UNIT AND VEHICLE BEHAVIOR CONTROL DEVICE - An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control hoard in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess. | 06-03-2010 |
20100141025 | MODULATOR - The invention rotates to a modulator ( | 06-10-2010 |
20100213758 | NORMALLY CLOSED ELECTROMAGNETIC VALVE, A BRAKE CONTROL SYSTEM, A CONTROL METHOD FOR A NORMALLY CLOSED ELECTROMAGNETIC VALVE, AND AN ELECTROMAGNETIC VALVE - In a normally closed electromagnetic valve ( | 08-26-2010 |
20100219679 | BRAKE APPARATUS - Brake apparatus ( | 09-02-2010 |
20100225159 | Braking System For Motor Vehicles - A braking system having a master cylinder to which wheel brake circuits (I, II) can be connected, a first piston coupled to a brake pedal, a second piston by means of which the master cylinder is actuated, a third piston actuated by the first piston and connected in a force transmitting fashion to the second piston, a simulation device which gives the driver of the vehicle a pedal sensation, an intermediate space between the second piston and third piston, a hydraulic chamber which is bounded by the third piston and when necessary, a movement of the third piston in the actuating direction is prevented, a pressure generating device which controls the pressure in the intermediate space, a pressure medium reservoir vessel which is under atmospheric pressure and which can be connected hydraulically to the intermediate space, and means for electrically controlling the pressure in the intermediate space. | 09-09-2010 |
20100276988 | DIFFERENTIAL EMERGENCY/PARK ELECTRIC BRAKE SYSTEM - A system, apparatus and method provide emergency differential braking for effecting braked steering of an aircraft. A brake input device is provided that not only allows for emergency and parking brake functions, but also enables differential braking. The brake input device (e.g., a parking and/or emergency brake lever, pedal, handle, etc.) can be used in a brake system including a brake system control unit (BSCU), one or more electro-mechanical actuator controllers (EMACs) and a brake assembly including one or more electrical actuators. Each EMAC is electrically coupled to one or more of the actuators so as to provide electrical power for driving the actuators. Each EMAC is also communicatively coupled to the BSCU so as to receive braking data therefrom. In an emergency, the input device sends braking signals directly to the brake actuators. | 11-04-2010 |
20100276989 | BRAKE FILL EFFECT MINIMIZATION FUNCTION - A brake fill effect minimization function for preventing or reducing brake controller windup during a brake fill condition or the like that may commonly occur in hydraulic or electromechanical brake systems, particularly during initial application of the brakes or during anti-skid conditions. The function temporarily reduces error input to the brake controller during a perceived brake fill condition (hydraulic brakes) or running clearance condition (electromechanical brakes) thereby facilitating smooth application of the brakes during initial braking and/or under anti-skid conditions. | 11-04-2010 |
20100308645 | PARKING BRAKE AND METHOD FOR OPERATING SAME - A parking brake having an actuator, wherein the actuator is driven with a direct current motor which can be operated in two directions and which moves a piston of the actuator and, via a self-locking gear mechanism of the actuator, at least one brake shoe for applying or releasing the parking brake. A control unit for performing open-loop or closed-loop control of the movement of the direct current motor is also provided. During open-loop or closed-loop control of the movement of the direct current motor for applying and/or releasing the parking brake, the control unit takes into account a hydraulic admission pressure which is currently present at the piston if the brake is applied or was present at the piston if the brake has been released when it had previously been applied. A corresponding method for operating such a parking brake is also disclosed. | 12-09-2010 |
20100314934 | ELECTRONIC SYSTEM FOR OPERATING AN ELECTROMECHANICAL PARKING BRAKE - An electronic system to operate an electromechanical parking brake for a land vehicle comprises at least one input unit to detect a driver request for parking brake and at least two control units in connection with the input unit to evaluate the driver request for parking brake transmitted thereto. The control units are in connection with at least one actuator for activating the parking brake, in order to control said actuator. In addition, the system comprises an energy supply to feed the input unit, and the control units of the at least one actuator. On occurrence of a single fault from a set of possible fault states in the system, at least one control unit and at least one actuator are supplied with energy and/or control signals, the at least one control unit supplied controls the at least one actuator supplied so that the land vehicle is fixed in a parked position when a corresponding driver request for parking brake is present. | 12-16-2010 |
20110062775 | ELECTRONIC CONTROL UNIT ASSEMBLING METHOD, ELECTRONIC CONTROL UNIT AND VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL APPARATUS - An electronic control unit includes: a sensor board on which a sensor is mounted; a control board configured to control an operation of each electric component, based on a physical quantity detected by the sensor; and a housing configured to accommodate the sensor board and the control board, wherein: in an internal space of the housing, a first accommodation chamber in which the electric component is accommodated, a second accommodation chamber in which the sensor board and the control board are accommodated in a hierarchical state, and a partitioning portion which partitions between the first accommodation chamber and the second accommodation chamber are formed; and the sensor board and the control board are supported by the partitioning portion, and a rib is protrudingly provided on the partitioning portion. | 03-17-2011 |
20110074209 | Electrically Driven Brake Booster - In an electrically driven brake booster wherein an electrically driven actuator moves a booster piston upon operation of a brake pedal to generate a hydraulic pressure for driving a brake force at the maser cylinder, the electrically driven actuator controls to move the booster piston as the pressing member in order to correctly detect presence/absence of an operation of the booster piston and detect a movement pattern of an input rot and an input piston as the shaft member relative to a movement of the pressing member. In accordance with the movement pattern, presence/absence of an operation of the brake pedal is detected. By confirming that the brake pedal is not operated, by the method described above, a zero point of a stroke sensor for detecting the position of the shaft member and zero points of oil pressure sensors for detecting a hydraulic pressure supplied by the master cylinder are learnt. | 03-31-2011 |
20110175438 | Vehicle Line-Locking Braking System and Method - The present disclosure relates to a computer-implemented method of line-locking a hydraulic vehicle braking system. The method includes performing a preliminary system check and controlling the distribution of fluid between a hydraulic module and two sets of vehicle brakes when the preliminary check is satisfied. | 07-21-2011 |
20110175439 | Vehicle Line-Locking Braking System and Method - The present disclosure relates to various computer-implemented methods of line-locking a hydraulic vehicle braking system. A method includes performing a preliminary system check and controlling the distribution of fluid between a hydraulic module and an individual wheel-end brake component when the preliminary check is satisfied. The system continues to monitor predetermined vehicle inputs during activation. | 07-21-2011 |
20110187181 | Method for Operating a Parking Brake Module in the Event of Defects and Parking Brake Module Suitable for Performing the Method - A method is provided for operating a parking brake module that is at least partially integrated into a compressed air generation system in the event of defects, having a control unit, solenoid valves, and a relay valve for aerating and deaerating at least one spring-loaded brake cylinder. A pressure in the parking brake module which is elevated compared to a normal pressure is determined. A constant compressed air delivery is stopped. A reduced switch-off pressure of the compressed air generation system is set. The pressure level in the parking brake module is lowered to the reduced switch-off pressure through repeated activation of the relay valve. | 08-04-2011 |
20110221264 | HYDRAULIC PRESSURE CONTROL APPARATUS - A hydraulic pressure control apparatus has an electromagnetic valve having a valve body forced to one side by an elastic member and a coil driving the valve body to the other side; a hydraulic pressure control section for calculating a command current value to drive the electromagnetic valve and controlling a hydraulic pressure in a hydraulic circuit by opening/closing the electromagnetic valve; a current detection section detecting a value of the current passing through the coil; and a command current value correction section. The command current value correction section detects a change of an inductance of the coil when the valve body moves from the one side to the other side or from the other side to the one side through the current detection section, and corrects the command current value using the detected inductance change. | 09-15-2011 |
20110254362 | HYDRAULIC BRAKING ASSEMBLY FOR A VEHICLE COMPRISING A HYDRAULIC FLUID LEVEL SENSOR - A hydraulic braking assembly ( | 10-20-2011 |
20120062024 | BRAKE BOOSTER SYSTEM FOR A VEHICLE BRAKE SYSTEM AND METHOD FOR OPERATING A VEHICLE BRAKE SYSTEM - The invention relates to a brake booster system for a vehicle brake system, comprising a control device ( | 03-15-2012 |
20120074770 | BRAKE CONTROL OF A VEHICLE BASED ON DRIVER BEHAVIOR - A system for controlling a brake force of a vehicle. In one embodiment, the system includes an electronic control unit including a controller, a plurality of sensors in electronic communication with the controller. Each of the sensors transmits sensor data to the controller. A user interface and a driver recognition system are in electronic communication with the controller, and a computer readable memory stores instructions executed by the controller. The instructions cause the controller to evaluate a driver identification data received from the driver recognition system, a driver preference data received from the user interface, and the sensor data received from the sensors. The instructions further cause the controller to classify and select a driver or a driving pattern class, execute a control algorithm to determine a driver dependent brake force based on at least one of the selected driver or driving pattern class, the driver preference data, and the driver identification data, and to regulate the brake force of the vehicle based on the driver dependent brake force. | 03-29-2012 |
20120119566 | ELECTRIC BRAKE ACTUATOR AND VEHICLE BRAKE SYSTEM - An electric brake actuator (motor cylinder apparatus) for generating hydraulic brake pressure on the basis of at least an electric signal corresponding to brake manipulation by an operator, which is incorporated in a vehicle brake system with an input apparatus being arranged separately from the electric brake actuator and receiving the brake manipulation. A reservoir reserving brake fluid is attached to a cylinder body included in the electric brake actuator, and the ceiling of the reservoir is inclined from the axis of the cylinder body in correspondence with an arrangement of the main body inclined from the horizontal line. | 05-17-2012 |
20120181851 | VEHICLE AIR BRAKING SYSTEM - A vehicle air braking system having a source of fluid under pressure ( | 07-19-2012 |
20120248862 | ELECTRIC BRAKING DEVICE - In an electric braking device that produces brake fluid pressure by driving a second slave piston in the axial direction with the driving force by a motor, a driving force transmission mechanism for transferring the driving force by the motor includes a nut that rotates upon reception of the rotational driving force by the motor, and a ball screw shaft which is engaged with the nut and is movable in the axial direction and which abuts the second slave piston. The electric braking device further includes a worn-out reducer for reducing the worn-out of a contact part between the ball screw shaft and the second slave piston. | 10-04-2012 |
20120256479 | METHOD FOR CONTROLLING A HIGH-PRESSURE SELECTOR VALVE IN A HYDRAULIC MOTOR VEHICLE BRAKE SYSTEM - In a method for controlling a selector valve situated in a hydraulic brake system of a motor vehicle, the selector valve is opened by applying an electrical signal having various control phases having different current intensities. The thermal load and the noise of the valve are significantly improved if the lengths of the control phases for the pilot stage or the holding phases are variably adapted to the driving situation. | 10-11-2012 |
20120267946 | ANNULAR SEAL MEMBER AND BRAKE FLUID PRESSURE CONTROL APPARATUS USING THE SAME - An annular seal member includes: an annular base part; and a seal edge, which is provided on both end faces of the annular base part to protrude in opposite directions, wherein the seal edge is configured to closely contact with a opposing face of a seal target such that an inner periphery side of the base part and an outer periphery side of the base part are fluid-tightly partitioned, wherein a plurality of the seal edges is provided in parallel with each other in at least one area of the base part, and wherein the number of the seal edges in the at least one area of the base part is larger than the number of the seal edges in the other area of the base part. | 10-25-2012 |
20130009456 | BRAKE SYSTEM FOR MOTOR VEHICLES - A “brake-by wire” brake system for motor vehicles, with a brake master cylinder which can be actuated by a brake pedal and has a housing and a piston, which is arranged displaceably in the housing and, together with the housing, delimits a pressure space. The piston of the brake master cylinder is designed as a stepped piston with at least two hydraulic active surfaces A | 01-10-2013 |
20130062935 | SYSTEMS AND METHODS FOR EMERGENCY BRAKING SYSTEM - Systems and methods disclosed herein may be useful emergency braking systems for use in, for example, an aircraft. A system is disclosed that allows emergency braking without the need for a manually operated emergency brake. For example, a system is provided comprising a potentiometer in mechanical communication with a brake pedal, a first electronic switch in electrical communication with the potentiometer, a second electronic switch indicating a displacement of the brake pedal, wherein a brake control valve opens in response to the first electronic switch, and wherein a shutoff valve opens in response to the second electronic switch. | 03-14-2013 |
20130134770 | BRAKE CONTROL DEVICE - A brake control device includes: a valve block furnished with valves which regulate or switch air pressure; a controller which electrically controls a plurality of solenoid valves via solenoid valve control signal wires; and an electropneumatic plate which includes solenoid valve connection air channels for the plurality of solenoid valves, and onto which is installed the plurality of solenoid valves so as to communicate with the solenoid valve connection air channels. The plate is secured to the valve block, and at least one of the solenoid valve connection air channels communicates with a support member air channel formed in the valve block. | 05-30-2013 |
20130134771 | CONTROL DEVICE FOR A BRAKING SYSTEM OF A VEHICLE, BRAKING SYSTEM FOR A VEHICLE, AND METHOD FOR OPERATING A BRAKING SYSTEM OF A VEHICLE - A control device for a braking system of a vehicle is provided, having a first receiving device which receives a provided brake activation intensity variable, a plunger control device which determines a setpoint fill level variable of a plunger, taking into account at least the received brake activation intensity variable, and a corresponding plunger control signal is outputtable so that a ratio of an actual volume and a maximum fillable volume of a storage volume of the plunger is settable corresponding to the determined setpoint fill level variable. For a brake activation intensity variable corresponding to a predefined non-activation intensity variable, the plunger control device determines a fill level variable different from an empty state as the setpoint fill level variable, and outputs a plunger control signal corresponding to the determined setpoint fill level variable to the plunger such that the plunger is at least partially filled. | 05-30-2013 |
20130147260 | Method for Controlling the Pressure in an Electronically Controlled Hydraulic Brake System for a Motor Vehicle - A method for controlling the pressure in a hydraulic system in an electronically regulated motor vehicle brake system, including controlling the pressure using an analogized solenoid valve, and controlling the valve such that it moves into a partially open state, modulating the coil current (I) of the valve by alternation between a first (I | 06-13-2013 |
20130221736 | VEHICLE BRAKE DEVICE - Vehicle brake device comprises a master cylinder including a master chamber connected to a wheel cylinder, a drive pressure chamber in which a drive pressure is generated for driving a master piston and a fluid pressure chamber in which a fluid pressure is generated in response to a stroke position of the master piston and an operating characteristics setting device for setting operating characteristics of an electromagnetic valve. The operating characteristics include a relationship of the pressure differential in the fluid conduit between the master cylinder side and the wheel cylinder side with respect to the electromagnetic valve based on the supply amount of the electric power detected by the supplied electric power detecting device. | 08-29-2013 |
20140084675 | Control device for a brake system of a vehicle, and method for operating a brake system of a vehicle - A control device for a vehicle brake system, having a control device/arrangement by which a closing signal is outputtable to an isolation valve via which a first brake circuit is hydraulically connected to a main brake cylinder, and at least one first control signal is outputtable to at least one first hydraulic component, so that a first actual brake pressure in the first brake circuit can be varied, an existing functional impairment of the at least one first hydraulic component and/or of at least one further brake system component being determinable, or a warning signal being receivable, and, if warranted, a closing signal being outputtable to a changeover valve of a second brake circuit, and, after or simultaneously with an outputting of the closing signal to the changeover valve, an opening signal being outputtable to the isolation valve. Also described is a related method for operating the vehicle brake system. | 03-27-2014 |
20140097667 | SYSTEMS AND METHODS FOR VEHICLE BRAKING CONTROL - A vehicle control system includes a brake system onboard a vehicle, a first actuation component, an automatic control system, and a second actuation component. The first actuation component is operably coupled to the brake system and is configured to cause actuation of the brake system to brake the vehicle when the first actuation component is activated. The automatic control system is onboard the vehicle and is configured to generate a first control signal for controlling the first actuation component to activate to upon occurrence of one or more designated conditions. The second actuation component is operably coupled to the brake system and is configured to cause actuation of the brake system to brake the vehicle upon receipt of one of the first control signal or a second control signal generated by the automatic control system. | 04-10-2014 |
20140117749 | ELECTRIC BRAKE SYSTEM FOR VEHICLE - Disclosed herein is an electric brake system for a vehicle including a reservoir, a master cylinder, an input rod, and a pedal displacement sensor. The electric brake system includes a pressure supply unit to receive oil and to output an electrical signal through the pedal displacement sensor, a hydraulic control unit to perform braking of a wheel, first and second switching valves connected to a channel connecting the pressure supply unit to the hydraulic control unit, a simulator connected to the master cylinder, and an electronic control unit to control the motor and the valves. The pressure supply unit includes a pressure chamber, a hydraulic piston arranged in the pressure chamber, a hydraulic spring to elastically support the hydraulic piston, the motor to generate rotational force, and a ball-screw member to convert rotational motion of the motor into rectilinear motion. The hydraulic piston is connected to the screw. | 05-01-2014 |
20140183936 | Brake Hydraulic Pressure Control System For Vehicle - Brake hydraulic pressure is appropriately prevented from becoming lower than a reference brake pressure for holding control. When a physical amount correlating with the rotational speed of an electric motor has become higher than or equal to a predetermined value, an HSA start reference pressure setting unit sets an HSA start reference pressure to a value higher than a reference brake pressure, and if the HSA start reference pressure at a time when a driver required fluid pressure has become lower than the HSA start reference pressure is higher than the reference brake pressure, an HSA required fluid pressure setting unit sets an HSA required fluid pressure at a time when the driver required fluid pressure has become lower than the HSA start reference pressure to a value higher than the reference brake pressure. | 07-03-2014 |
20140265546 | VEHICLE BRAKE DEVICE - A vehicle brake device is provided with a regulator for generating a servo pressure acting on a master piston in a master cylinder, based on a pilot pressure. The regulator is provided with a brake fluid absorbing section communicating with a first pilot chamber for absorbing the brake fluid as the pilot pressure in the first pilot chamber in the quantity depending on the fluid pressure in the first pilot chamber. The brake fluid absorbing section comprises a piston receiving portion formed in a second piston and opening to the first pilot chamber, a pressure receiving piston slidably received in the piston receiving portion and making the first pilot chamber variable in capacity, and an urging member urging the pressure receiving piston toward the first pilot chamber side. | 09-18-2014 |
20150021979 | HYDRAULIC-PRESSURE CONTROL DEVICE AND HYDRAULIC BRAKING SYSTEM - A hydraulic-pressure control device includes: a regulator ( | 01-22-2015 |
20150084402 | AUTOMATIC TRACTION RELAY VALVE DIAGNOSTIC USING PRESSURE TRANSDUCER FEEDBACK - A system and method of diagnosing and/or mitigating the effects of a malfunctioning brake valve configured to supply pressurized fluid to a brake unit via a pressure delivery line during automated braking operations including detecting a period of no braking activity, venting the pressure delivery line to atmosphere during the period of no braking activity, monitoring pressure in the pressure delivery line to detect a pressure change resulting from the venting, and generating an error signal if a detected pressure change exceeds a threshold value. The pressure modulating valve can be periodically cycled once a fault is detected to reduce the effects thereof. | 03-26-2015 |
20150115701 | BRAKE DEVICE FOR VEHICLE - A brake device for a vehicle includes: a cylinder body in which brake oil is compressed; a first piston pressurizing brake oil while moving along the inside of the cylinder body; a connection part having a smaller outer diameter than the first piston, and including one side connected to the first piston and the other side extended to the outside of the cylinder body; a pipe line part connecting the cylinder body and a wheel brake, and transferring the brake oil compressed through the movement of the connection part to the wheel brake; and a valve controlling the flow of the brake oil transferred along the pipe line part. | 04-30-2015 |
20150137589 | ELECTRONIC CONTROL UNIT AND VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL UNIT - One embodiment provides an electronic control unit including: a base body; a control circuit board that controls electric parts; and a housing that is attached to one surface of the base body. The housing includes an accommodating portion which accommodates the control circuit board thereinside and a flange. The flange includes an attaching hole penetrating therethrough. A part of the accommodating portion is positioned on an extension of a center axis of the attaching hole. An attaching pin projects from the one surface of the base body so as to be inserted into the attaching hole. An attaching portion is formed on the attaching pin so as to be positioned between the flange and the accommodating portion. An elastic member is attached to the attaching portion so as to bias the flange toward the one surface of the base body. | 05-21-2015 |
20150307071 | EMERGENCY BRAKING - A brake system for a railway vehicle comprises a service brake with control valves and an emergency brake with a emergency brake valve adapted to permit or prevent emergency brake pressure from reaching the service brake control valves. The emergency brake is actuatable by a signal on an emergency brake wire. The brake system further comprises an isolating circuit adapted to permit or prevent control of the service brake control valves. | 10-29-2015 |
20160001753 | APPARATUS AND SYSTEM FOR POWER DISTRIBUTION TO BRAKE SYSTEMS - A low voltage DC power system for powering an aircraft brake actuator assembly. The brake actuator assembly may comprise an electric actuator motor system with a park brake and/or a hybrid electric hydraulic system with a park brake. The brake actuator assembly may also comprise a load cell and one or more sensors. The load cell and sensors may be configured to operate with low voltage DC power. Moreover, by employing a low voltage DC power system, the wiring of an aircraft brake system may be reduced and/or simplified. | 01-07-2016 |
20160023642 | UNIVERSAL TRAILER MOUNTED PROPORTIONAL BRAKE CONTROLLER - A trailer mounted proportional brake controller for a towed vehicle and a method of controlling the brakes of a towed vehicle is described. The brake control unit may control the brakes of a towed vehicle. The brake control unit may include a power control unit and a hand control unit. The power control unit may be connected to the brakes of the towed vehicle and the power control unit may be capable of selectively controlling the brakes of the towed vehicle based on a set of braking parameters. The hand control unit may be configured to remotely communicate with the power control unit. The hand control unit may be capable of transmitting information to the power control unit to adjust at least one of the braking parameters and receiving information from the power control unit. | 01-28-2016 |
20160059834 | VEHICLE LINE-LOCKING BRAKE SYSTEM AND METHOD - A line-locking brake system consists of a brake pressure generator which, in conjunction with a brake fluid solenoid isolates the front brake circuit from the master cylinder while maintaining a precise brake pressure in the front brake hydraulic system. The brake pressure generator consists of a pressure amplifier having a high pressure chamber located in the flow path from the master cylinder to the front brake cylinders and a low pressure chamber in fluid communication with a regulated gas pressure source. When activated, the brake pressure generator applies a pressure to the front brake circuit that is directly proportional to the pressure of the regulated gas and therefore is precisely controllable irrespective of wear on parts, driver fatigue or other variables. | 03-03-2016 |
20160107627 | DEVICE FOR OPERATING A BRAKE SYSTEM OF A MOTOR VEHICLE, AND ROTARY POSITION SENSOR - A device is provided for operating a brake system of a motor vehicle having an electric motor, which is configured for driving a pressure generation unit in order to generate hydraulic pressure; a housing block of a hydraulic unit, which is able to be connected to the pressure generation unit and the brake system of the motor vehicle; a control unit for controlling the electric motor; and a rotary position sensor of the electric motor, the electric motor being fixed in place on a first side of the housing block of the hydraulic unit, and the control unit being fixed in place on a second side, situated opposite from the first side, of the housing block of the hydraulic unit, and the rotary position sensor of the electric motor being situated in such a way that it detects a rotational frequency and/or an angular position of a rotor of the electric motor and is connected to the control unit by an opening developed in the housing block of the hydraulic unit. Also provided is a method for operating a brake system of a motor vehicle, and to a rotary position sensor. | 04-21-2016 |
20160167635 | ELECTRONIC TRANSMISSION RANGE SELECTION SUBSYSTEM IN A HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION | 06-16-2016 |
20180022335 | CONTROL DEVICE AND METHOD FOR OPERATING A BRAKE SYSTEM OF A VEHICLE | 01-25-2018 |