INPUT TORQUE TRIM FOR TRANSMISSION SHIFT CONTROL DURING REGENERATIVE BRAKING
    7.
    发明申请
    INPUT TORQUE TRIM FOR TRANSMISSION SHIFT CONTROL DURING REGENERATIVE BRAKING 有权
    在再生制动期间用于变速箱换档控制的输入扭矩

    公开(公告)号:US20160304076A1

    公开(公告)日:2016-10-20

    申请号:US14686054

    申请日:2015-04-14

    Abstract: A system and method for controlling a step-ratio transmission gearshift during a regenerative braking event for a hybrid vehicle having an engine selectively coupled to an electric machine and an automatic transmission control transmission input torque based on a measured shift profile and a target shift profile. A torque trim term may be added to the transmission input torque or electric machine output torque in response to a difference between the measured and target shift profiles. The torque trim term may be used to modify the transmission input torque to speed the shift up or shorten the shift time if the measured shift is progressing too slowly. Likewise, the torque trim term may be used to reduce the transmission input torque or electric machine output torque if the shift is progressing too quickly relative to the target shift profile.

    Abstract translation: 一种用于在具有选择性地耦合到电机的发动机和基于测量的换档曲线和目标换档轮廓的自动变速器控制变速器输入扭矩的混合动力车辆的再生制动事件期间控制步进比变速器换档的系统和方法。 响应于测量和目标位移曲线之间的差异,可以将扭矩调整项添加到变速器输入扭矩或电机输出转矩。 如果测量的换档进行得太慢,则可以使用扭矩调整项来修改变速器输入扭矩以加速换档或缩短换档时间。 类似地,如果相对于目标换档轮廓的换档进展得太快,则扭矩调整项可用于减小变速器输入扭矩或电机输出扭矩。

    HYBRID VEHICLE BRAKING SYSTEM AND METHOD
    8.
    发明申请
    HYBRID VEHICLE BRAKING SYSTEM AND METHOD 有权
    混合动力车辆制动系统及方法

    公开(公告)号:US20150202964A1

    公开(公告)日:2015-07-23

    申请号:US14157940

    申请日:2014-01-17

    Abstract: A vehicle includes a powertrain having an electric machine, and friction brakes configured to resist rotation of a vehicle wheel. The further includes at least one controller programmed to (i) issue a command for the electric machine to apply a regenerative torque to decelerate the vehicle in response to driver braking demand, and (ii) cause both a decay in the regenerative torque and a countervailing increase in the resistance of the friction brakes when vehicle speed is reduced to less than a first threshold such that braking demand is substantially satisfied by only the friction brakes when the vehicle speed is less than a second threshold.

    Abstract translation: 车辆包括具有电机的动力传动系,以及构造成抵抗车轮的旋转的摩擦制动器。 还包括至少一个控制器,其被编程为(i)发出指令以使电机施加再生转矩以响应于驾驶员制动需求而使车辆减速,以及(ii)使再生扭矩衰减和反补贴 当车速降低到小于第一阈值时,增加摩擦制动器的阻力,使得当车辆速度小于第二阈值时,仅通过摩擦制动器基本上满足制动需求。

Patent Agency Ranking