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    • 9. 发明授权
    • Lockup control device of a fluid transmission
    • 流体传动的锁定控制装置
    • US5085301A
    • 1992-02-04
    • US589783
    • 1990-09-26
    • Hiroyuki ImamuraTakafumi KurataHiroaki YokotaNaoyuki Noguchi
    • Hiroyuki ImamuraTakafumi KurataHiroaki YokotaNaoyuki Noguchi
    • F16H61/14
    • F16H61/143F16H2061/145Y10T477/735Y10T477/755Y10T477/79
    • According to the lockup device of a fluid transmission under the present invention, at the decelerating running when the change rate of engine load exceeds a set value, a lockup control pattern is changed so that the area where the lockup device is controlled to perfect friction or to the specified friction force. By this change, at the decelerating running large engine brake force can be worked and a good feeling of deceleration can be given to a driver. In the case where fuel supply to the engine is suspended at the decelerating running of the engine, transmission of large engine brake force as mentioned above results in comparatively longer time of maintaining high engine speed and longer time of fuel supply cutting off, with consequent saving of fuel consumption. Moreover, by changing the target slip quantity to the increasing side at the accelerating running, torque increasing action at the accelerating running is displayed effectively and accelerability can be improved. At the normal running, lowering of specific fuel consumption due to slip of the torque converter can be checked by setting a target slip quantity small. Thus, coexistence of improvement of accelerability and improvement of specific fuel consumption can be planned.
    • 根据本发明的流体传动装置的锁止装置,在发动机负荷变化率超过设定值的减速行驶时,锁定控制模式发生变化,使得锁止装置被控制的区域完美地摩擦, 达到指定的摩擦力。 通过这种变化,在减速运行时可以加工大的发动机制动力,并且可以给驾驶员提供良好的减速感。 在发动机的燃料供给被暂停在发动机的减速行驶的情况下,如上所述的大的发动机制动力的传递导致维持高的发动机转速和较长时间的燃料供给切断的相对较长的时间,从而节省 的燃料消耗。 此外,通过在加速行驶时将目标滑移量改变为增加侧,有效地显示加速行驶时的转矩增加动作,可以提高加速性。 在正常运行时,可以通过将目标滑移量设定得较小来检查由于变矩器的滑动引起的特定燃料消耗的降低。 因此,可以规划加速度提高和特定燃料消耗的改善的共存。