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    • 7. 发明专利
    • Electric vehicle control device
    • 电动车辆控制装置
    • JP2013188009A
    • 2013-09-19
    • JP2012051134
    • 2012-03-08
    • Hitachi Ltd株式会社日立製作所
    • WATANABE JUNSHIMADA MOTOMIAONO TOSHIHIROTACHIHARA SHUICHI
    • B60L15/20
    • B61C15/12B60L3/106B60L15/20B60L2200/26B60L2240/423B60L2240/465B60T8/1705B60T2210/124B60T2270/208Y02T10/645Y02T10/72Y02T10/7275
    • PROBLEM TO BE SOLVED: To suppress a calculation load to the minimum, to surely obtain the maximum adhesion torque, to improve acceleration/deceleration performance when a slip slide is detected, and to surely suppress the slip slide even if an adhesion state between wheels and rails is rapidly changed, and an adhesion coefficient is instantaneously reduced.SOLUTION: An estimated adhesion torque is always stored so as to suppress a calculation load to the minimum and surely obtain a maximum adhesion torque. When a slip slide is detected, a maximum is obtained from a plurality of the stored estimated adhesion torques just before the slip slide is detected. The maximum is considered as the maximum adhesion torque. A value of the maximum adhesion torque just before the slip slide is detected and a value of the estimated adhesion torque when the slip slide is detected are calculated and compared. If a calculation value exceeds a threshold, a condition that an adhesion coefficient is rapidly reduced is determined. In comparison with a condition that the adhesion coefficient is not rapidly reduced, a suppression/return rate of the torque is switched to a low value. The slip slide is surely suppressed by reducing a torque value to a smaller value during suppression/return.
    • 要解决的问题:为了将计算负荷降至最低,确保获得最大的附着力矩,以便在检测到滑动滑块时提高加速/减速性能,并且即使在车轮与车轮之间的粘附状态 导轨快速变化,粘附系数瞬时减小。解决方案:总是存储估计的粘合扭矩,以将计算负荷抑制到最小,并确保获得最大的附着扭矩。 当检测到滑动滑块时,从检测到滑动滑块之前的多个所存储的估计粘附扭矩获得最大值。 最大值被认为是最大附着力矩。 检测刚好在滑动滑块之前的最大粘附扭矩的值,并且计算并比较当滑动滑块被检测时估计的粘附扭矩的值。 如果计算值超过阈值,则确定粘附系数迅速降低的条件。 与粘附系数不迅速降低的条件相比,扭矩的抑制/返回率被切换为低值。 在抑制/返回期间,通过将转矩值减小到较小值,可以确保滑块滑动。