Vehicle anti-lock brake control apparatus including means for regulating brake pressure based on smoothed wheel acceleration and determined vehicle acceleration

摘要

A vehicle anti-lock brake control apparatus for controlling a fluid pressure in a brake cylinder for a wheel, having a pressure- regulating valve device, a slip detecting device for detecting a slip of the wheel, and a control device for controlling the valve device based on the detected wheel slip, so as to prevent excessive slipping of the wheel. The slip detecting device includes a device for detecting a smoothed wheel acceleration value which is an acceleration value of the wheel smoothed by a predetermined time constant, and a device for determining an acceleration value of the vehicle. The control device includes a device for generating control commands to be applied to the valve device, for increasing and decreasing the fluid pressure such that a mean wheel acceleration value intermediate between adjacent minimal values of the smoothed wheel acceleration value approaches the vehicle acceleration value.