Juergen Hachtel

Hydraulic vehicle braking system

Method and apparatus for activating a pump of a braking system as a function of the pressure drop

Method and device for detecting the speed of a pump

Method for determining a functional state of a pressure build-up valve, and function monitoring device for a pressure build-up valve of a hydraulic brake booster

Method and apparatus for controlling a braking system

Controlling charge storage pump in electrohydraulic vehicle braking system, involves variably setting switch-on threshold during travel depending on vehicle state/operating parameters

Method and apparatus for controlling a brake system

Method and device for determining the rotary speed of an electrical machine

Method and device for measuring the rotational speed of a pulse-activated electric motor based on a frequency of current ripples

Verfahren und Einrichtung zur Ansteuerung eines Elektromotors