| 摘要 |
PURPOSE:To control the output of an engine to be as minimum as possible by weighing the importance of skid conditions, assuming control in fluid pressure at the time of slight skid, and also assuming control in both fluid pressure and engine output at the time of serious skid. CONSTITUTION:In a device provided with both a booster 1 producing fluid pressure in a master cylinder 3 and a change-over valve 23 which applies and releases negative pressure to a negative pressure feeding system related with an inlet system 20, and concurrently equipped with valves 7, 7', 15 and 15' opening/closing a fluid pressure system for respective wheel brakes, the degree of the skid conditions of both driving wheels is judged by a controller 27 based on the circumferential speed and acceleration of the driving wheels and vehicle speeds. Then, negative pressure is applied to the booster 1 with the change-over valve 23 actuated regardless of the degree of the skid conditions of the driving wheels, and control of each valve is assumed only in the fluid pressure of the driving wheels at the time of slight skid. But control is assumed in both fluid pressure and an inlet air flow rate by auxiliary accelerators 24-26 at the time of serious skid. |
