Stabilizer control apparatus for use in motor vehicles

Details Stabilizer control apparatus for use in motor vehicles Stabilizer control apparatus for use in motor vehicles

1988-11-21

1990-01-09

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

280700, 280723, 280689, B62D 902

Patent

active

048923290

ABSTRACT:
A control apparatus for controlling the twisting amount of a stabilizer provided between left and right wheels of a vehicle in accordance with the vehicle running state. The control apparatus includes a hydraulic cylinder unit coupled between one end portion of the twistable stabilizer and one of the wheels and the cylinder unit has a cylinder body and a piston slidable therein to be expandable and contractable in accordance with movements of the piston. Also included in the apparatus is a hydraulic actuator comprising control valves and coupled to the cylinder unit to control a position of the piston, the position thereof corresponding to the twisting amount of the stabilizer and being detectable by a position sensor. A control unit determines a predetermined stable condition of the vehicle on the basis of a steering angle of a steering wheel, which is detectable by a steering sensor, and obtains a neutral position of the piston taken under the condition that the vehicle is in the predetermined stable condition. Further, the control unit determines a turning state of the vehicle on the basis of the steering angle and to determine a target piston position with respect to the neutral position in accordance with the degree of the vehicle turning state, then outputting a control signal to the actuator so that the piston assumes the target piston position.

REFERENCES:
patent: 4066278 (1978-01-01), Takagi
patent: 4206935 (1980-06-01), Sheppard et al.
patent: 4218072 (1980-08-01), Wallis
patent: 4429899 (1984-02-01), Ohno
patent: 4613153 (1986-09-01), Shibahata et al.
patent: 4641856 (1987-02-01), Reichenbach
patent: 4804198 (1989-02-01), Imai et al.

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