Patent application number | Description | Published |
20090043472 | Method and Arrangement for Running in and Calibrating an Electromechanical Parking Brake System - A method and arrangement for running in and calibrating an electromechanical parking brake system (EPB) has at least one brake mechanism unit (BME) and at least one control device (SG), the actuation of the brake mechanism unit (BME) being controlled by a control routine (SR) provided in the control device (SG). The electromechanical parking brake system (EPB) is advantageously run in by at least one running-in routine (EFR) and/or calibrated by at least one calibration routine (KRR), the running-in routine (EFR) and/or the calibration routine (KRR) checking for the existence of at least one safety-critical condition (SB) and/or the existence of at least one system error (SF) before and/or during the running-in operation and/or calibration operation and in dependence thereon the running-in operation and/or calibration operation is continued or terminated. | 02-12-2009 |
20090326733 | METHOD AND ARRANGEMENT FOR DETERMINING AN UPDATED WHEEL CIRCUMFERENCE OF AT LEAST ONE WHEEL DISPOSED ON A VEHICLE - In a method and an arrangement for the determination of an updated wheel circumference (U*) of at least one wheel (R) arranged on a vehicle, during which at least one wheel circumference (U) is assigned to at least one wheel (R) in a control unit (CU), and during which the wheel speed (RaV) is determined by means of the control unit (CU) according to the speed of rotation (RoV) of the at least one wheel (R) and according to the assigned wheel circumference (U), advantageously, a reference speed (RefV) of the vehicle and/or the wheel (R) is determined which is independent of the determined wheel speed (RaV). The discrepancy (V) between the at least one wheel speed (RaV) and the reference speed (RefV) is detected and the updated wheel circumference (U*) of the at least one wheel (R) is determined according to the discrepancy (V). | 12-31-2009 |
20100262330 | METHOD FOR CONTROLLING AT LEAST ONE ELECTROMECHANICAL PARKING BRAKE UNIT OF AN ELECTROMECHANICAL PARKING BRAKE SYSTEM - In a method for controlling at least one electromechanical parking brake unit in a vehicle, the current vehicle speed is detected by a speed sensor system in the form of a speed measuring signal, and a deceleration measuring signal displaying the current vehicle deceleration is detected by at least one acceleration sensor system. In the event of a defective speed signal or a failure of the speed sensor system, the electromechanical parking brake system is operated in an emergency operation mode wherein, at the beginning of a braking, a dynamic braking function is provided by the electromechanical parking brake unit. Advantageously, the current vehicle deceleration is determined from the deceleration measuring signal and compared with a pre-determined minimum deceleration value, and if the determined current vehicle deceleration falls short of the pre-determined value in the emergency operation mode, a static brake function is provided by the electromechanical parking brake unit. | 10-14-2010 |
20100268430 | METHOD FOR CONTROLLING AN ELECTROMECHANICAL PARKING BRAKE SYSTEM OF A VEHICLE AND CORRESPONDING SYSTEM - In a method for controlling an electromechanical parking brake system (EPB) of a vehicle, wherein the electromechanical parking brake system (EPB) comprises at least one actuating element (BE), at least one brake mechanism unit (BME), and at least one control device (SG), in order to statically brake the vehicle, the actuating element (BE) is actuated and, depending thereon, the at least one brake mechanism unit (BME) is applied with a predetermined application speed (AV) controlled by a control and evaluation routine (SAR) run in the control device (SG). The vehicle speed (V) prevailing when the at least one actuating element (BE) is actuated is advantageously determined and the application speed (AV) of the brake mechanism unit (BME) is selected depending on the determined vehicle speed. | 10-21-2010 |
20130342147 | ASSEMBLY FOR CONTROLLING AN ELECTRIC VACUUM PUMP - An assembly for controlling an electric vacuum pump for a vehicle, which is connectable by at least one switch, which can be controlled by an electronic control unit, to a supply voltage, wherein the electronic control unit in a start-up phase connects the vacuum pump to an additional electrical resistor between the supply voltage and the vacuum pump. | 12-26-2013 |
20140012463 | METHOD, SYSTEM AND COMPUTER PROGRAMME PRODUCT FOR MONITORING THE FUNCTION OF A SAFETY MONITORING SYSTEM OF A CONTROL UNIT - A computer-implemented method for monitoring the function of a safety monitoring system of a control unit of an actuator system of a motor vehicle, wherein it is checked by the function monitoring whether the safety monitoring is performed faultlessly, wherein the safety monitoring is carried out by a first monitoring entity and the function monitoring is carried out by a second monitoring entity, wherein the first monitoring entity sends a result of the safety monitoring as an information item to the second monitoring entity at defined time intervals, wherein the first monitoring entity and the second monitoring entity are free of a common interface, wherein the information item is received by the second monitoring entity by utilizing an interface between the second monitoring entity and the control unit, and wherein the information item is coded in a format which cannot be interpreted by the control unit. | 01-09-2014 |
20140168826 | ACTUATING MODULE FOR AN ELECTRIC VACUUM PUMP - An electric vacuum pump actuating module for boosting the braking force of a motor vehicle, including a main controller and a driver circuit for operating the electric vacuum pump. The driver circuit includes a first and a second switch. The first switch switches a supply voltage above a predefined voltage level of an operating voltage of the vacuum pump. The second switch switches a supply voltage below the voltage level of the vacuum pump. The main controller controls the first switch by first control signals and the second switch by second control signals. The actuating module determines a state of the electric vacuum pump as a first piece of information based on a first response of the electric vacuum pump resulting from the first or second control signals. The actuating module assesses the state of the electric vacuum pump as error-free or erroneous operation of the electric vacuum pump. | 06-19-2014 |
20140356190 | METHOD FOR THE START-UP CONTROL OF AN ELECTRIC VACUUM PUMP - The invention relates to a method for controlling a start-up of an electric vacuum pump for a vacuum system of a vehicle, wherein the start-up can occur according to at least two different start-up modes, i.e., according to a standard mode and according to at least one special mode, wherein in the standard mode the vacuum pump is connected to a supply voltage in a non-clocked manner and in the special mode the vacuum pump is connected to a supply voltage in a dynamically clocked manner. | 12-04-2014 |