Method and circuit configuration for determining the pedal force as a control quantity for a brake system with anti-lock control

摘要

PCT No. PCT/EP94/00153 Sec. 371 Date Nov. 8, 1995 Sec. 102(e) Date Nov. 8, 1995 PCT Filed Jan. 21, 1994 PCT Pub. No. WO94/18041 PCT Pub. Date Aug. 18, 1994To determine the pedal force as a control quantity for a brake system with anti-lock control, the drive motor of a hydraulic pump is switched over to generator operation during braking with anti-lock control, and the magnitude of the generator voltage and its fade-out behavior is evaluated. The hydraulic pump serves to return the pressure fluid which was discharged from the wheel brake for pressure reduction, or it serves for the supply of auxiliary pressure. The approximate supply pressure depending on the pedal force can be determined by the generator voltage and the fade-out behavior.