Patent application number | Description | Published |
20080217118 | Bellows for a Self-Amplifying Electromechnical disc Brake and Disc Brake with Such a Bellows - The invention relates to a bellows for a self-energising electromechanical disc brake. According to the invention, a low deformation force may be achieved by means of a bellows with an elliptical, offset cross-section tapering in one direction and, in opposing circumferential sections of the bellows, the provision of circumferential folds of small curvature and inclined folds along the longitudinal sides of the bellows. | 09-11-2008 |
20080217120 | Self-Reinforcing Electromechanical Disc Brake - The invention relates to a self-reinforcing electromechanical disc brake having a brake caliper produced by means of shaping, in one piece with a housing for electromechanical parts of an actuating device of the disc brake, with the housing forming a dimensionally stable hollow body. It is possible in this way to produce a bending-resistant and torsionally rigid brake caliper with a low wall thickness. | 09-11-2008 |
20080217121 | Electromechanical Brake - The invention relates to an electromechanical disk brake which has a switchable freewheel in order to be configured as a parking brake. The switchable freewheel includes a clamping roller freewheel having rollers for locking a motor shaft of an electric motor of the brake. A locating bearing of the motor shaft of an electric motor, and the freewheel are accommodated on a cover of a housing of the electric motor, and all the electric connections of the disc brake are routed via the cover. The number of components used can be reduced considerably by the integrated design. Moreover, the positional tolerances of the freewheel in relation to the motor shaft can be reduced with the aid of the invention. | 09-11-2008 |
20080283347 | Electromechanical Friction Brake - The invention relates to a self-energizing electromechanical friction brake includes a self-energizing device provided with, for example, a wedge mechanism. According to the invention, the friction brake is equipped with a linear drive, for example an electromagnet, for brake actuation. The self-energizing device converts a friction force exerted by a rotating brake body on a friction brake lining during braking actuated by the linear drive of an actuation device into a second contact pressure that presses the friction brake lining against the brake body in addition to the first contact pressure exerted by the actuation device. The self-energizing device provides a non-proportional characteristic magnetic force curve of the electromagnet of the linear drive. | 11-20-2008 |
20080289913 | Self-Amplifying Electromechanical Friction Brake - The present invention relates to an electromechanical disk brake ( | 11-27-2008 |
20080296102 | Self-Amplifying Electromechanical Partial Lining Disc Brake - The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear. | 12-04-2008 |
20090229931 | HYDRAULIC VEHICLE BRAKE SYSTEM - The invention proposes equipping a hydraulic vehicle brake system with a pedal travel modulator that has an electromechanically driven piston-cylinder unit. The piston-cylinder unit upon brake actuation “furnishes” additional brake fluid and thereby boosts a pedal travel of the vehicle brake system. | 09-17-2009 |
20100032249 | DISK BRAKE - The invention relates to a disk brake with an electromechanical actuator which, for example, has a piezo-element, and with a hydraulic self-energizing device. In order to control the self-energizing effect, the invention provides a valve hydraulically between an auxiliary piston of the self-energizing device and a brake piston of the disk brake with which the brake piston can be hydraulically isolated from the auxiliary piston. This means that the self-energizing effect of the disk brake can be switched off. Using a modulated valve control and/or use of a proportional valve, the level of the self-energizing effect can be controlled or regulated. In order to avoid a blockage, the invention additionally provides a blockage protection valve with which the auxiliary piston or the brake piston can be connected to a hydraulic accumulator at ambient pressure. | 02-11-2010 |
20100044166 | SELF-BOOSTING DISK BRAKE - The invention relates to a self-boosting disk brake having a friction brake lining with a wedge on its rear side that faces away from the brake disk. The wedge supports the friction brake lining in a brake caliper when the disk brake is actuated. The wedge principle achieves self-boosting of the disk brake. The invention proposes providing a wedge-shaped support element between the wedge and a brake caliper, the support element supporting the wedge of the friction brake lining on the brake caliper. In order to actuate the disk brake, the support element is moved by an actuating device against the wedge. | 02-25-2010 |
20100109427 | HYDRAULIC VEHICLE BRAKE SYSTEM AND METHOD FOR ITS OPERATION - The invention relates to a hydraulic vehicle brake system with slip control. The invention proposes that wheel brakes at wheels of a front axle are of self-amplifying design in order to provide boosting of the brake force. An otherwise conventional vacuum brake force booster can be dispensed with. The invention further relates to a method for operating a hydraulic vehicle brake system, according to which, at high lining friction values, brake fluid is conducted, in a manner controlled by a valve, into a hydraulic reservoir. | 05-06-2010 |
20100147123 | Tool emergency brake device - A tool emergency brake device, in particular for a stationary saw, has a brake unit. The brake unit is designed to brake in a self-energizing manner. | 06-17-2010 |
20100258386 | SELF-BOOSTING DISK BRAKE - The invention relates to a self-reinforcing, in particular electromechanical disk brake having a wedge mechanism as the self-boosting device, for example. The invention proposes that the actuating device be attached to a separate holder, which does not have forces or torques of the wedge mechanism applied thereto. | 10-14-2010 |
20130341132 | FRICTION BRAKE - The disclosure relates to a friction brake in the design of a disc brake as a vehicle brake having a piezo element as an actuating device and a piezo element as a force-voltage converter on which a movable friction brake pad is supported against turning with a brake disc and thus generates a voltage on the piezo element which an electronic control unit couples into the piezo element of the actuating device, causing the friction brake to have a self-amplification. | 12-26-2013 |
20130342005 | Method for Controlling a Wheel Brake Pressure in a Hydraulic Vehicle Braking System - A method for controlling the wheel brake pressures in wheel brake cylinders in a hydraulic vehicle braking system proposes to connect the wheel brake cylinders via wheel valves to a piston pump, the pistons of which are double-action pistons, and the two piston sides are connectable by means of pump valves. In order to increase the wheel brake pressure, the wheel valves are opened during a delivery stroke of the piston pump and the pump valves are closed, and the wheel valves are closed and the pump valves opened during a suction stroke. In order to reduce the wheel brake pressures, the valves are controlled in reverse. | 12-26-2013 |
20140001821 | Brake System for a Vehicle and Method for Operating a Brake System for a Vehicle | 01-02-2014 |