Method and circuit arrangement for controlling the flow rate of a hydraulic pump

摘要

PCT No. PCT/EP93/02226 Sec. 371 Date Aug. 21, 1995 Sec. 102(e) Date Aug. 21, 1995 PCT Filed Aug. 20, 1993 PCT Pub. No. WO94/07717 PCT Pub. Date Apr. 14, 1994Method and circuit configuration for controlling the flow rate of an electromotively driven hydraulic pump which is activated by a variable pulse/pulse-break train for controlling the auxiliary pressure supply of a brake system including anti-lock control (ABS) and traction slip control by brake management (BASR). The generator voltage produced by the pump motor during times of pulse break is evaluated as a standard of the rotational speed of the pump. The nominal value of the pump speed is compared with the actual value of the pump speed in a control circuit, and the new correcting variable for the pump activation is derived from the difference.