| 摘要 |
A strong piezo-actuator is inserted between brake piston and back side of the brake pad and is included in a regular anti locking brake system's feedback loop normally acting only on the hydraulic brake pressure system. Furthermore a laser scanner velocimetry is proposed to achieve a more accurate measure of the vehicle speed or respectively the longitudinal and lateral (drift) speed of each wheel axis. Both concepts together should enable a feedback response time roughly of the order of 10 microseconds which is much shorter than the nowadays achievable 10 milliseconds response time of solely hydraulic brake force generating systems which should make the anti locking brake system much more effective. Upon emergency breaking a vehicle can be held much closer to the limit of the elastic slip regime of the wheel slip (static friction regime) where the highest deceleration can be reached just before the vehicle transitions into sliding friction wheel slip. |
