Zf Friedrichshafen Ag

Zahnradfabrik Friedrichshafen, Ag.

Manfred Schwab

Wolf-Dieter Gruhle

Wolfgang Danz

Wolfgang Runge

Ludger Ronge

Klaus Schweiger

Wilhelm Härdtle

Peter Sigg

Harald Deiss

An apparatus and a process for the prevention of the rollback of a vehicle with a vehicle braking system (), wherein a braking system () comprises a vehicle brake pressure modifying apparatus (); a device () which are enabled to recognize a forward movement of the vehicle, and a brake control apparatus (), which is connected to the vehicle brake pressure modifying apparatus () and the device (). There is generated in the control apparatus () a signal which, upon a standstill of the vehicle, activates a brake and sensor combination () which acts upon a transmission () of the vehicle, the brake and the sensor combination () being supplementary to the brakes of the vehicle brake system () and, upon a recognition of a forward motion of the vehicle, the braking fluid pressure in the vehicle brake pressure modifying apparatus () is reduced and thus the brake and the sensor combination () acting upon the transmission is released.

Preventing reverse creep in a motor vehicle

In a device for communication on a communication path between control elements () which are actuated by a driver of a vehicle and emit control signals and devices () of the vehicle which receive control signals and convert the control signals into reactions in or on the devices, the control signals are transmitted from the control elements () and to the devices () in wireless manner at least on sections of the communication path.

Wireless communication in vehicles

In a system for shifting an automatic or automated variable transmission ( ) of a vehicle with a voice command device ( ) by the driver in which the voice commands given by the driver are compared with reference voice commands stored in a memory ( ) and therefrom control signals are formed, in a transmission control ( ) the control signals formed form the driver's voice commands are superimposed onto the shift signals calculated by the transmission control ( ) in order therefrom to form a shift command of the variable transmission ( ) of the vehicle appropriate for the driving situation.

Growing community of inventors

Friedrichshafen, Germany

Manfred Schwab