Anti-skid control system for an electrically operated vehicle

Details Anti-skid control system for an electrically operated vehicle Anti-skid control system for an electrically operated vehicle

1994-06-02

1996-04-30

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

Regenerative brakes

303 3, 303 15, B60L 718

Patent

active

055118666

ABSTRACT:
The invention is directed to an anti-skid control system for an electrically operated vehicle having an electric motor and a regenerative braking system. The system sets a desired decreasing wheel speed, when a skid detector detects a skidding condition of the wheel in response to the output signal of a wheel speed detector. A controller controls a regenerative braking torque of the electric motor in accordance with a control mode selected from a torque control mode, in which the regenerative braking torque is provided in proportion to operation of a brake operating member, and a rotation control mode, in which the regenerative braking torque is controlled to rotate the electric motor at a predetermined speed corresponding to the desired decreasing wheel speed. The controller changes the torque control mode to the rotation control mode when the skid detector detects the skidding condition.

REFERENCES:
patent: 4671577 (1987-05-01), Woods
patent: 4962969 (1990-10-01), Davis
patent: 5148883 (1992-09-01), Tanaka et al.
patent: 5358317 (1994-10-01), Cikanek

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