| 摘要 |
PURPOSE:To improve the drive feeling of a vehicle and as to shorten the braking distance thereof, by restraining the upper limit of saw-like variations in the cylinder pressure of a brake cylinder below a limiting value at which a tire lock is generated, when the vehicle speed is lowered. CONSTITUTION:Control circuits 5a, 5b which are provided, corresponding to front and rear wheels, respectively, and deliver their control outputs to the energizing coils of control valves 2a, 2b, respectively. The upper limit of saw-like pressure in a brake cylinder is sequentially lowered, and is set at a value slightly lower than a theoretically optimum averaged brake force just before stopping. Further, the trends of saw-like variations in the brake pressure is beforehand stored in a memory in each control circuit including a microcomputer, and are selected in accordance with an actual road surface condition to control the brake operation. |
