Method and apparatus for executing an asynchronous clutch-to-clutch shift in a hybrid transmission
    21.
    发明授权
    Method and apparatus for executing an asynchronous clutch-to-clutch shift in a hybrid transmission 有权
    在混合变速器中执行异步离合器到离合器换档的方法和装置

    公开(公告)号:US08801567B2

    公开(公告)日:2014-08-12

    申请号:US13398993

    申请日:2012-02-17

    IPC分类号: B60W10/10 B60W20/00

    摘要: A hybrid transmission includes first and second electric machines. A method for operating the hybrid transmission in response to a command to execute a shift from an initial continuously variable mode to a target continuously variable mode includes increasing torque of an oncoming clutch associated with operating in the target continuously variable mode and correspondingly decreasing a torque of an off-going clutch associated with operating in the initial continuously variable mode. Upon deactivation of the off-going clutch, torque outputs of the first and second electric machines and the torque of the oncoming clutch are controlled to synchronize the oncoming clutch. Upon synchronization of the oncoming clutch, the torque for the oncoming clutch is increased and the transmission is operated in the target continuously variable mode.

    摘要翻译: 混合变速器包括第一和第二电机。 用于响应于执行从初始连续可变模式到目标连续可变模式的转换的命令来操作混合变速器的方法包括增加与目标连续可变模式中操作相关联的到来离合器的转矩,并相应地减小 与在初始连续可变模式下操作相关联的离合离合器。 在停用离合器离合器时,控制第一和第二电机的扭矩输出和即将到来的离合器的扭矩,以使迎面而来的离合器同步。 在迎面而来的离合器同步时,即将到来的离合器的扭矩增加,变速器以目标连续可变模式运转。

    VEHICLE FLUID PRESSURE CONTROL
    24.
    发明申请
    VEHICLE FLUID PRESSURE CONTROL 有权
    车辆流体压力控制

    公开(公告)号:US20120211324A1

    公开(公告)日:2012-08-23

    申请号:US13029403

    申请日:2011-02-17

    IPC分类号: F16D25/00 F15B9/16

    摘要: A vehicle includes a pump configured to output fluid at a commanded pressure when driven by a motor. A first hydraulic device is operably connected to the pump and configured to operate in response to receiving fluid at a first pressure. A second hydraulic device is operably connected to the pump and configured to execute a shift command in response to receiving fluid at a second pressure. A control processor is configured to control the commanded pressure in accordance with a priority scheme. That is, the control processor is configured to direct at least a portion of the commanded pressure from the first hydraulic device to the second hydraulic device for a duration of a shift command based on the priority scheme and redirect at least a portion of the commanded pressure to the first hydraulic device upon completion of the shift action.

    摘要翻译: 一种车辆包括:泵,其构造成在由电动机驱动时以指令的压力输出流体。 第一液压装置可操作地连接到泵并且构造成响应于在第一压力下的接收流体而操作。 第二液压装置可操作地连接到泵并且构造成响应于在第二压力下接收流体而执行换档指令。 控制处理器被配置为根据优先权方案来控制所命令的压力。 也就是说,控制处理器被配置为基于优先级方案将来自第一液压装置的命令压力的至少一部分引导到第二液压装置的变速指令的持续时间,并且将至少一部分指令压力 在完成换档动作后到第一液压装置。

    METHOD AND APPARATUS TO CONTROL CLUTCH FILL PRESSURE IN AN ELECTRO-MECHANICAL TRANSMISSION
    26.
    发明申请
    METHOD AND APPARATUS TO CONTROL CLUTCH FILL PRESSURE IN AN ELECTRO-MECHANICAL TRANSMISSION 有权
    在机电传输中控制离合器压力的方法和装置

    公开(公告)号:US20090111643A1

    公开(公告)日:2009-04-30

    申请号:US12250514

    申请日:2008-10-13

    IPC分类号: B60W10/08 G06F17/00 B60K6/00

    摘要: A method to control a powertrain including a transmission, an engine, and an electric machine includes applying through a series of clutch fill events a series of incrementally changing command pressures in a pressure control solenoid controllably connected to a clutch within the transmission, monitoring a pressure switch fluidly connected to the pressure control solenoid and configured to indicate when the pressure switch is in a full feed state, determining changes in cycle times of the pressure switch corresponding to sequential applications of the series of incrementally changing command pressures, selecting a preferred command pressure to achieve a transient state in the clutch based upon the changes in pressure switch cycle times, and controlling the clutch based upon the preferred command pressure.

    摘要翻译: 用于控制包括变速器,发动机和电机的动力传动系统的方法包括通过一系列离合器填充事件施加可控地连接到变速器内的离合器的压力控制螺线管中的一系列增量变化的指令压力,监测压力 流体连接到压力控制螺线管的开关,其被配置为指示何时压力开关处于完全进给状态,确定对应于一系列递增变化的指令压力的顺序应用的压力开关的循环时间的变化,选择优选的指令压力 基于压力开关循环时间的变化来实现离合器中的过渡状态,并且基于优选的指令压力来控制离合器。

    METHOD AND APPARATUS TO CONTROL CLUTCH STROKE VOLUME IN AN ELECTRO-MECHANICAL TRANSMISSION
    27.
    发明申请
    METHOD AND APPARATUS TO CONTROL CLUTCH STROKE VOLUME IN AN ELECTRO-MECHANICAL TRANSMISSION 有权
    在机电传输中控制离合器体积的方法和装置

    公开(公告)号:US20090111642A1

    公开(公告)日:2009-04-30

    申请号:US12250348

    申请日:2008-10-13

    IPC分类号: B60W10/08

    摘要: A method for controlling a powertrain comprising a transmission coupled to an engine and an electric machine adapted to selectively transmit mechanical power to an output member via selective application of a plurality of hydraulically actuated torque transfer clutches includes filling one of the hydraulic clutches to a reference fill volume expected to create a touching state in the clutch, wherein the filling is accomplished through control of a pressure control solenoid, monitoring an actual fill time of the hydraulic clutch, monitoring a flow utilized in the filling, determining a measured fill volume based upon the actual fill time and the flow, calculating a fill volume error based upon the measured fill volume and the reference fill volume, and adjusting the reference fill volume based upon the fill volume error.

    摘要翻译: 一种用于控制动力系统的方法,包括耦合到发动机的变速器和适于通过选择性地施加多个液压致动的扭矩传递离合器来选择性地将机械动力传递到输出构件的电机,包括将一个液压离合器填充到参考填充 预期在离合器中产生触摸状态的容积,其中通过控制压力控制螺线管来实现填充,监测液压离合器的实际填充时间,监测填充中使用的流量,基于 实际填充时间和流量,基于测量的填充体积和参考填充体积计算填充体积误差,并根据填充体积误差调整参考填充体积。