SYSTEMS FOR MANAGING DOWNSHIFTS IN HYBRID-ELECTRIC VEHICLES
    69.
    发明申请
    SYSTEMS FOR MANAGING DOWNSHIFTS IN HYBRID-ELECTRIC VEHICLES 有权
    用于管理混合动力车辆的系统的系统

    公开(公告)号:US20160023650A1

    公开(公告)日:2016-01-28

    申请号:US14338687

    申请日:2014-07-23

    Abstract: Systems for managing downshifts in hybrid-electric vehicles are disclosed. The systems include a multispeed transmission, an internal combustion engine selectively coupled to the multispeed transmission, an electric motor coupled to the multispeed transmission, and an electronic control unit. The electronic control unit is programmed to evaluate a torque demand, start the internal combustion engine, and pre-stage a downshift shift sequence by partially disengaging a second shift clutch and partially engaging a first shift clutch. The electronic control unit is also programmed to interrupt the downshift shift sequence until a pre-determined torque supplemental event occurs and later complete the downshift shift sequence by modifying the hydraulic pressure through the valve body to completely disengage a second gear set from the input shaft with the second shift clutch and completely engage a first gear set and the input shaft with the first shift clutch.

    Abstract translation: 公开了用于管理混合动力汽车降档的系统。 该系统包括多速传动装置,选择性地联接到多速传动装置的内燃机,耦合到多速传动装置的电动机和电子控制装置。 电子控制单元被编程为评估扭矩需求,启动内燃机,并且通过部分地分离第二变速离合器并部分地接合第一变速离合器来预先降档换档顺序。 电子控制单元还被编程为中断降档换档序列,直到发生预定的扭矩补充事件,并且随后通过修改通过阀体的液压来完成降档换档顺序,以使第二齿轮组与输入轴完全脱离, 第二变速离合器,并且与第一变速离合器完全接合第一齿轮组和输入轴。

    Systems for managing downshifts in hybrid-electric vehicles
    70.
    发明授权
    Systems for managing downshifts in hybrid-electric vehicles 有权
    混合动力汽车减速系统

    公开(公告)号:US09238460B1

    公开(公告)日:2016-01-19

    申请号:US14338687

    申请日:2014-07-23

    Abstract: Systems for managing downshifts in hybrid-electric vehicles are disclosed. The systems include a multispeed transmission, an internal combustion engine selectively coupled to the multispeed transmission, an electric motor coupled to the multispeed transmission, and an electronic control unit. The electronic control unit is programmed to evaluate a torque demand, start the internal combustion engine, and pre-stage a downshift shift sequence by partially disengaging a second shift clutch and partially engaging a first shift clutch. The electronic control unit is also programmed to interrupt the downshift shift sequence until a pre-determined torque supplemental event occurs and later complete the downshift shift sequence by modifying the hydraulic pressure through the valve body to completely disengage a second gear set from the input shaft with the second shift clutch and completely engage a first gear set and the input shaft with the first shift clutch.

    Abstract translation: 公开了用于管理混合动力汽车降档的系统。 该系统包括多速传动装置,选择性地联接到多速传动装置的内燃机,耦合到多速传动装置的电动机和电子控制装置。 电子控制单元被编程为评估扭矩需求,启动内燃机,并且通过部分地分离第二变速离合器并部分地接合第一变速离合器来预先降档换档顺序。 电子控制单元还被编程为中断降档换档序列,直到发生预定的扭矩补充事件,并且随后通过修改通过阀体的液压来完成降档换档顺序,以使第二齿轮组与输入轴完全脱离, 第二变速离合器,并且与第一变速离合器完全接合第一齿轮组和输入轴。

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