| 摘要 |
PROBLEM TO BE SOLVED: To suppress generation of a flat on a wheel tread by rapidly instructing torque near tangential force coefficient relevant torque at detection of slide-traveling, to enhance ride comfort by suppression of large variation in brake torque and to accomplish effective utilization of adhesion force. SOLUTION: The trailer brake receiver always presumes tangential force coefficient of a trailer wheel by a disturbance observer and operates a brake torque reduction amount of the minimum requirement for re-adhesion and brake torque instructed after re-adhesion such that they become the torque slightly smaller than the tangential force coefficient relevant brake torque at detection of slide-traveling. A timing setting value for turning ON/OFF a delivery valve and a feeding stop valve on or after the detection of slide-traveling is operated from the brake torque reduction amount and the brake torque instructed after the re-adhesion. The delivery valve and the feeding stop valve are turned ON/OFF based on the timing setting value by expectation control without reference to trailer axial acceleration on or after the detection of slide-traveling to suppress a reduction amount of brake torque and a slide-traveling speed from being excessive. COPYRIGHT: (C)2007,JPO&INPIT
|
