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    • 3. 发明授权
    • Engine torque control device
    • 发动机转矩控制装置
    • US07416515B2
    • 2008-08-26
    • US11245433
    • 2005-10-07
    • Masahiro IriyamaTakuya Maekawa
    • Masahiro IriyamaTakuya Maekawa
    • B60W10/04F16H61/04
    • B60W10/06B60W10/11B60W30/19F16H61/0403F16H63/502Y10T477/675Y10T477/677Y10T477/6937
    • An engine torque control device is configured to lessen shift shock while shortening the shift time during downshifting with an automatic transmission. When a downshift requirement is generated, a disengagement control of a higher gear clutch (current gear ratio) is commenced, and at the same time, a first synchronizing control is commenced. The first synchronizing control has a torque-up control with a first synchronizing speed DNe1 set as the target speed TNe, during a first control period. When the first control period has concluded and there is a transition to a second control period. In the second control period, an engagement control of a lower gear clutch (the post-shift gear ratio) is commenced, and at the same time, there is a switch to a second synchronizing control. In the second synchronizing control, the target speed TNe is set to a second synchronizing speed DNe2 at the post-shift gear ratio.
    • 发动机扭矩控制装置被配置为在利用自动变速器降档时缩短换档冲击,同时缩短换档时间。 当产生降档要求时,开始对较高档位离合器进行分离控制(当前齿轮比),并且同时开始第一同步控制。 在第一控制周期期间,第一同步控制具有设定为目标速度TNe的第一同步速度DNe 1的加力控制。 当第一控制周期结束并且转换到第二控制周期时。 在第二控制期间,开始下部齿轮离合器的接合控制(变速比变速比),同时切换到第二同步控制。 在第二同步控制中,将目标速度TNe设定为变速档位后的第二同步速度DNe 2。