Lucas Automotive Gmbh

Harald Thelen

Thomas Bach

Elmar Hoffmann

Michael Bleser

Bernd Schmitt

Stefan Wöll

Josef Knechtges

Christian Chemnitz

A hydraulic brake system for a land vehicle including a hydraulic connection between a master cylinder and wheel brakes that is established or blocked by valve arrangements in dependence upon trigger signals from an electronic control with the electronic control unit devised and programmed in such a way that, in order to set a brake pressure characteristic required for a specific vehicle behavior, the electronic control unit supplies trigger signals through which the setting of a respective brake pressure characteristic in two brake circuits in predefined pressure stages (delta-p) is staggered in terms of time by a substantially predefined time stage (delta-t).

Hydraulic braking system for a land craft

A method and an apparatus for controlling the speed of a motor vehicle in particular during a hill ascent are described. In a PID controller acting upon the brake system of the motor vehicle the change of the vehicle inclination is fed into the I branch of the controller, thereby providing an adaptive speed control.

Method and device for speed regulation when travelling on an incline

A method for starting a motor vehicle on a downhill route from an idle state includes the steps of maintaining a sufficient brake force to hold the motor vehicle in the idle state, even if brake actuation by the driver is withdrawn; detecting a wish by the driver to drive off; reducing, independently of the driver, the brake force which is maintained independently of the driver, in such a way that the resulting movement of the motor vehicle follows a preset course.

Technique for starting a motor vehicle on a downhill route

A system for a hill descent control in the braking equipment of a motor vehicle comprising an electrically controllable service brake system, which is designed both for an anti-locking control function and for a braking function irrespective of actuation by the driver, a brake actuator which permits an individual adjustment of the braking pressures or braking moments generated for the individual wheels of a motor vehicle, which are the respective manipulated variables controlled by the hill descent control, an electronic control unit being provided for the electronic control and/or regulation which directly or indirectly detects variables related to operating conditions of the motor vehicle and adjusts additional braking moments when driving on steeply inclined roads, irrespective of whether a brake pedal is actuated.

System for controlling a motor vehicle driving downhill

A method for starting a motor vehicle, which is held at a standstill on an inclined route by a brake force which is maintained independently of the driver, after a predetermined holding time has elapsed gradually reduces the brake force which is generated independently of the driver, to put the motor vehicle into motion, and then controls the movement of the motor vehicle, corresponding to a preset course.

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Oberfell, Germany

Harald Thelen