Electric motor-driven hydraulic pump

Details Electric motor-driven hydraulic pump Electric motor-driven hydraulic pump

1991-11-22

1994-03-22

Butler, Douglas C.

Fluid-pressure and analogous brake systems

With pump

Pressure control

3031161, 417 45, B60T 1320

Patent

active

052957373

ABSTRACT:
Circuit provides maximum current to an electric motor for a hydraulic pump in a brake system for a brief time interval after the motor is switched on, and thereafter limits the current to a lower value which corresponds to the torque necessary for generating the pressure required in the system.

REFERENCES:
patent: 4207031 (1980-06-01), Maskrey
patent: 4402554 (1983-09-01), Belart
patent: 4436486 (1984-03-01), Jensen et al.
patent: 4518903 (1985-05-01), Matsumoto et al.
patent: 4524312 (1985-06-01), Matsumoto et al.
patent: 4699435 (1987-10-01), Wupper
patent: 4848847 (1989-07-01), Reinartz et al.
patent: 4955790 (1990-09-01), Nakanishi et al.
patent: 5000520 (1991-03-01), Schmitt
patent: 5015151 (1991-05-01), Snyder, Jr. et al.
patent: 5076761 (1991-12-01), Krohn et al.

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