| LUCAS AUTOMOTIVE GMBH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120111673 | BALL SCREW FOR A MOTOR VEHICLE BRAKE AND A MOTOR VEHICLE BRAKE - The invention relates to a ball screw for a motor vehicle brake, in particular for an electromechanically actuable motor vehicle brake, comprising a rotatable spindle; a nut that is axially movable relative to the spindle in accordance with the rotation thereof; and rolling body arrangement that is disposed between, and displaceable relative to, the spindle and the nut. In this ball screw it is provided that the rolling body arrangement is preloaded into a predetermined normal position by means of at least one spring element. The invention further relates to a vehicle brake having such a ball screw. | 05-10-2012 |
| 20120056471 | Braking System for a Land Vehicle with Regenerative Braking Functionality - A brake unit for a hydraulic, single- or multi-circuit brake system of a land vehicle with electric drive for carrying out regenerative braking by means of at least one electrical machine in or at the drive train of the vehicle and braking by means of at least one friction brake, wherein a brake pedal and at least one sensor for detecting a braking request of the driver is provided, a master cylinder for feeding pressurized hydraulic fluid into at least one brake circuit in accordance with the braking request, wherein a dividing cylinder is provided, which has a first hydraulic chamber and a second hydraulic chamber divided from the first by a dividing piston, wherein the first hydraulic chamber has a first port, which is connected to the master cylinder, and a second port, which is connected by a simulation valve to a line leading to the wheel brakes, and the second hydraulic chamber is connected by a shut-off valve to the low-pressure storage chamber, and an orifice is disposed in a connection line between the simulation valve and the low-pressure storage chamber. | 03-08-2012 |
| 20110290599 | Brake Lining Assembly - The present invention relates to a brake pad arrangement having a pad carrier plate, on which a brake pad is disposed, wherein the brake pad on a friction surface has at least two contour edges, at which the brake pad is chamfered. According to the invention in order to suppress noise it is provided that the at least two contour edges extend substantially parallel to one another and at a predetermined angle relative to a radial centre line M of the brake pad. | 12-01-2011 |
| 20100320041 | Single-Part Carrier for an Electric Parking Brake Actuator with Planetary Gear Set - A brake actuator for an electrical parking brake comprises an electric motor and a planetary gear set. The axes on which the planet wheels are carried on the planet carrier are joined substance-to-substance to the planet carrier, i.e. formed in one piece with it or for instance mounted on its surface by means of atomic or molecular forces. Recesses on the axes can receive a lubricant. Spacers between the planet carrier and planet wheels can reduce the contact surface in the axial direction. | 12-23-2010 |
| 20100202903 | PISTON PUMP AND OPERATING METHOD THEREFOR - A piston pump for a hydraulic pressure generator in a vehicle brake system is described. The piston pump comprises a housing, in which a bore for receiving an eccentric shaft is formed. In the housing at least six cylinders for receiving one pump piston each are further provided. The cylinders are disposed in pairs in three or more mutually spaced-apart planes and open out in each case into the receiving bore for the eccentric shaft. According to a possible realization, in a two-circuit vehicle brake system at least three cylinders are associated with each brake circuit to increase the operating comfort. To reduce wear, each of the provided eccentrics interacts with only two pump pistons. | 08-12-2010 |
| 20100033009 | Method and Device for Tightening a Hydraulic Parking Brake - A method and a device for tightening a hydraulic parking brake are disclosed. In the method, a tightening force is generated in a first step by creating a hydraulic pressure in a parking brake circuit. To this end, a pressure generating unit driven by an electric motor is used. In a subsequent step, at least one motor-related parameter which permits a conclusion about the hydraulic pressure prevailing in the parking brake circuit is detected. Subsequently, an activation of a tightening force assistance device takes place depending on the detected motor-related parameter and without the necessity of providing a pressure sensor. | 02-11-2010 |
| 20090108670 | Brake System for a Motor Vehicle - A braking system for a motor vehicle includes a hydraulic circuit for producing a brake force, the hydraulic circuit having a pressure source for producing a hydraulic pressure and a pressure store, the pressure store of the hydraulic circuit being able to be supplied with hydraulic fluid from a delivery side of the pressure source if necessary. In this braking system, there is provision for the pressure store to be able to be coupled in fluidic terms to an intake side of the pressure source by means of an interposed actively controllable multi-way valve, in particular a two-way solenoid valve, and for the pressure store to be able to be decoupled therefrom. | 04-30-2009 |
| 20080293534 | Electromotive Brake Actuator - The invention relates to an actuator for the electromotive actuation of a parking or stop brake, especially of a private car. The actuator comprises, downstream on the electric motor, a planetary wheel transmission which is axially cascaded in a multi-stage manner and comprises a centering pin which is radially mounted on the two front ends thereof and extends coaxially to the output shaft, on the radial overdefined bearing arrangement thereof. Respectively one planet carrier comprising a pinion is embodied, along the centering pin, as a sun wheel for the planet wheels on the planet carrier of the following transmission step. | 11-27-2008 |
