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    • 2. 发明授权
    • Lock-up clutch control apparatus
    • 锁止离合器控制装置
    • US5975262A
    • 1999-11-02
    • US160035
    • 1998-09-25
    • Yoshiharu SaitoYasushi InagawaMasamitsu Fukuchi
    • Yoshiharu SaitoYasushi InagawaMasamitsu Fukuchi
    • F16H59/36F16H61/14F16H45/02
    • F16H61/143F16H2045/0294F16H59/36Y10T477/6351Y10T477/63525
    • In order to improve the fuel consumption by maintaining the lock-up clutch as tightly as possible during the down-shift operation, a lock-up clutch control apparatus is provided. The lock-up clutch control apparatus comprises a revolution control device for predicting the number of revolutions of the an input axis of transmission and the number of revolutions of an engine after the speed change before a down-shift operation; a torque converter judgement device for judging the state of the torque converter in terms of whether or not a torque ratio of the torque converter will be in the torque amplification range when the lock-up clutch is turned off, from the number of revolution of the input axis of the transmission and the engine speed obtained by the revolution prediction device; and a control device for turning off the lock-up clutch, if the lock-up clutch before the speed change is in a tight condition, in the case when the judgement device judges that the torque converter will be in the torque amplification range when the lock-up clutch is turned off.
    • 为了通过在下变速操作期间尽可能靠近地保持锁止离合器来提高燃料消耗,提供了一种锁止离合器控制装置。 锁止离合器控制装置包括:转速控制装置,用于在下变换操作之前,预测变速输入轴的转数和发动机转速之后的转速; 一种变矩器判定装置,用于根据变矩器的扭矩比是否处于锁止离合器关闭时的转矩放大范围内,判断变矩器的状态, 变速器的输入轴和由转速预测装置获得的发动机转速; 以及用于关闭锁止离合器的控制装置,如果在变速之前的锁止离合器处于紧密状态,则当判断装置判断变矩器将处于转矩放大范围时, 锁止离合器关闭。
    • 4. 发明授权
    • Lock-up control device
    • 锁定控制装置
    • US6022294A
    • 2000-02-08
    • US153303
    • 1998-09-15
    • Yoshiharu SaitoTakanori KonYasushi InagawaMasamitsu Fukuchi
    • Yoshiharu SaitoTakanori KonYasushi InagawaMasamitsu Fukuchi
    • B60W10/06B60W10/11B60W30/19F16H61/14B60K41/02F16H45/02
    • B60W10/06B60W10/02B60W10/04B60W10/11B60W30/1819B60W30/19F16H61/143B60W2710/027B60W2710/0644B60W2710/105B60W30/20F16H2061/0477F16H2061/145Y02T10/52Y02T10/84Y10T477/735
    • A lock-up control device controls an engaging force of a lock-up clutch, which shares engine output with a torque converter to transmit it toward an input shaft of a transmission of a car. First, target driving force is produced based on accelerator pedal opening and car velocity. Then, required torque is produced based on a gear ratio and the target driving force. Target engine speed is produced based on the required torque, wherein the target engine speed is set to avoid occurrence of abnormal sounds and abnormal vibrations. Thus, the lock-up clutch is controlled in such a way that real engine speed does not become less than the target engine speed in case of a gear change corresponding to a shift-up operation, for example. Basically, the lock-up clutch is controlled to have engaging force, which is made as maximal as possible to improve fuel efficiency. In other words, the lock-up clutch is controlled to be as tightly as possible. Or, the lock-up clutch which is initially set at a tight state is turned off just after the gear change start timing if it is predicted that the real engine speed after the gear change will become lower than the target engine speed.
    • 锁定控制装置控制与变矩器共享发动机输出的锁止离合器的接合力,以将其向轿厢的变速器的输入轴传递。 首先,基于加速踏板开度和车速来产生目标驱动力。 然后,基于齿轮比和目标驱动力产生所需的扭矩。 目标发动机转速是根据所要求的扭矩产生的,其中目标发动机转速设定为避免发生异常声音和异常振动。 因此,锁定离合器被控制为使得在与例如升档操作相对应的档位变化的情况下,实际发动机转速不会变得小于目标发动机转速。 基本上,锁止离合器被控制成具有尽可能最大的接合力,以提高燃料效率。 换句话说,锁止离合器被控制得尽可能的紧密。 或者,如果预测变速后的实际发动机转速将变得低于目标发动机转速,则最初设定在紧密状态的锁止离合器在变速开始定时之后被关闭。
    • 10. 发明授权
    • Lock-up control device
    • 锁定控制装置
    • US6009988A
    • 2000-01-04
    • US153302
    • 1998-09-15
    • Yoshiharu SaitoTakanori KonMasamitsu Fukuchi
    • Yoshiharu SaitoTakanori KonMasamitsu Fukuchi
    • F16H59/14F16H61/14F16D33/00F16H61/58
    • F16H61/14B60W2510/0657B60W2510/1025B60W2540/106F16H2061/145F16H59/14F16H59/141Y10T477/635
    • A lock-up control device is provided to control engaging force of a lock-up clutch, which shares engine output with a torque converter to transmit it toward an input shaft of a transmission. Herein, input shaft torque is estimated based on engine speed and engine intake negative pressure, while engine torque is estimated based on engine speed and throttle opening. A weight coefficient is produced based on an amount of variations of the engine torque when the amount of variations is greater than a prescribed value. Then, weighted mean engine torque is calculated by the input shaft torque and engine torque in accordance with the weight coefficient. Thus, the lock-up control device controls the lock-up clutch based on the weighted mean engine torque in such a way that the engaging force of the lock-up clutch is increased in response to the rise timing of the weighted mean engine torque. For example, the weight coefficient is determined in such a way that the engine torque is given high distributed weight in the weighted mean engine torque as compared with the input shaft torque. Thus, it is possible to increase the engaging force of the lock-up clutch promptly in response to the rise mode of the real engine torque, by which it is possible to avoid occurrence of control delay in control of the lock-up clutch.
    • 锁定控制装置被设置成控制锁止离合器的接合力,锁止离合器与变矩器共享发动机输出,以将其传递到变速器的输入轴。 这里,基于发动机速度和发动机进气负压来估计输入轴转矩,同时基于发动机转速和节气门开度来估计发动机扭矩。 当变化量大于规定值时,基于发动机转矩的变化量来生成重量系数。 然后,根据重量系数,通过输入轴扭矩和发动机扭矩计算加权平均发动机转矩。 因此,锁止控制装置基于加权平均发动机转矩来控制锁止离合器,使得锁定离合器的接合力响应于加权平均发动机扭矩的上升时间而增加。 例如,以与输入轴转矩相比发动机转矩在加权平均发动机扭矩中给予高分配重量的方式来确定重量系数。 因此,可以根据实际发动机扭矩的上升模式迅速地提高锁止离合器的接合力,借此可以避免控制锁止离合器时的控制延迟。