Abstract: A servo control system includes an actuator controlling a controlled quantity. A device detects the controlled quantity and generates a detection signal representative thereof. The actuator is controlled in response to a target value and the detection signal so that the detected controlled quantity can follow the target value. A device generates a signal representative of an input variable relating only to the target value. The target value is corrected in accordance with the input variable through fuzzy reasoning using predetermined rules.

Abstract: Disclosed a brake control system for stably performing the brake control of a motor vehicle. The brake control system is arranged so as to control a braking pressure applied to a vehicle wheel so that the wheel speed becomes equal to a target wheel speed. The target wheel speed is determined on the basis of a predetermined slip ratio of the wheel and the vehicle speed of the wheel portion. The vehicle speed of the wheel portion is derived as a function of the turning radius determined in the steering amount of the vehicle and the vehicle speed. The brake control system is preferably constructed as an integral-added optimal regulator which controls the braking pressure on the basis of an optimal feedback gain predetermined in accordance with a dynamic model of a system performing the brake of the vehicle.

Abstract: An anti-skid control system for a vehicle with at least one wheel. The anti-skid control system includes a wheel sensor for sensing a rotational speed of the wheel and for generating a signal indicative of the sensed wheel speed and a brake sensor for sensing a braking force of a braking device which brakes the wheel and for generating a signal indicative of the sensed braking force. The wheel sensor and the brake sensor are respectively coupled to a control unit for receiving the wheel speed signal and the braking force signal to control the braking force of the braking device to a target braking force so that a slip ratio of the wheel assumes a predetermined value. The control unit determines the target braking force at the time of start of the anti-skid control to be equal to a braking force corresponding to the resultant of torques developed in the wheel at the control start time.

Abstract: Disclosed is a brake control system for a motor vehicle comprising a wheel braking device (M5) for providing the braking of a wheel of the vehicle in accordance with pressure, a braking pressure adjusting device (M6) for adjusting the braking pressure applied to the wheel braking device (M5), a detector (M4) for detecting a rotational state of the wheel, a rotational state setting device (M8) for setting an optimally rotational state of the wheel in according with an operating condition of the vehicle, and a control unit (M9) for feedback-controlling the braking pressure adjusting device (M6) so that the detected rotational state is equal to the set rotational state.The control unit (M9) is constructed as an integral-added optimal regulator which controls the braking pressure adjusting device (M6) on the basis of an optimal feedback gain predetermined in accordance with a dynamic model of a system relating to the brake of the vehicle.