Method for active engine stop of a hybrid electric vehicle
    1.
    发明授权
    Method for active engine stop of a hybrid electric vehicle 有权
    混合动力汽车的主动发动机停止方法

    公开(公告)号:US07217221B2

    公开(公告)日:2007-05-15

    申请号:US10846144

    申请日:2004-05-14

    IPC分类号: B60K1/02

    摘要: A method for providing an active engine stop of the engine of a hybrid electric vehicle. The method utilizes the electric machine to oppose and rapidly stop the rotation of the engine at a controlled rate. The method includes the calculation of an input speed reduction trajectory using the engine speed when the active engine stop request is made and a predetermined speed reduction interval. The speed reduction interval is less than a time from the active stop request to the shutoff command to the electric machine The method provides rapid deceleration of the engine, particularly through the powertrain resonance speed, reducing the amount of vibration energy dissipated through the powertrain and chassis. The method removes the electric machine torques from the engine prior to achieving zero engine speed in order to avoid imparting a negative engine speed or counter-rotation of the engine.

    摘要翻译: 一种用于提供混合动力汽车的发动机的主动发动机停止的方法。 该方法利用电机以受控的速度对抗并快速停止发动机的旋转。 该方法包括当进行主动发动机停止请求时,使用发动机转速计算输入减速轨迹和预定的减速间隔。 减速间隔小于从主动停止请求到关机指令到电机的时间。该方法提供了发动机的快速减速,特别是通过动力传动系共振速度,减少了通过动力总成和底盘消散的振动能量 。 该方法在实现零发动机转速之前消除了发动机的电机扭矩,以避免赋予发动机负的发动机转速或反转。

    Hydraulic clutch control system
    2.
    发明授权
    Hydraulic clutch control system 有权
    液压离合器控制系统

    公开(公告)号:US08021257B2

    公开(公告)日:2011-09-20

    申请号:US12333591

    申请日:2008-12-12

    IPC分类号: F16H3/72 F16H31/00

    摘要: A transmission includes two blocking valves that control fluid pressure to a plurality of clutches. The blocking valves are characterized by a plurality of states that result in at least three transmission operating conditions. Each of the three operating conditions is characterized by fluid pressure being unavailable to at least one of the clutches.

    摘要翻译: 变速器包括控制多个离合器的流体压力的两个截止阀。 阻塞阀的特征在于导致至少三个传动操作条件的多个状态。 三个操作条件中的每一个的特征在于至少一个离合器不能使用流体压力。

    METHOD FOR CONTROLLING MOTOR/GENERATOR COOLING IN A MULTI-MODE TRANSMISSION
    3.
    发明申请
    METHOD FOR CONTROLLING MOTOR/GENERATOR COOLING IN A MULTI-MODE TRANSMISSION 审中-公开
    用于控制多模式变速器中的电机/发电机冷却的方法

    公开(公告)号:US20110106351A1

    公开(公告)日:2011-05-05

    申请号:US12610552

    申请日:2009-11-02

    IPC分类号: G06F19/00

    摘要: A method for controlling cooling of one or more motor/generators includes monitoring the stator temperature of the motor/generator and power loss of the motor/generator. Total cooling flow is estimated from the monitored stator temperature and power loss and a cooling line pressure is determined from a lookup table. The lookup table includes total cooling flow as a function of cooling line pressure. The method further determines a non-cooling line pressure and combines the non-cooling line pressure with the cooling line pressure to determine a first total line pressure. The transmission is commanded to operate at the first total line pressure.

    摘要翻译: 一种用于控制一个或多个电动机/发电机的冷却的方法包括监测电动机/发电机的定子温度和电动机/发电机的功率损耗。 根据监控的定子温度和功率损耗估计总冷却流量,并从查找表确定冷却管路压力。 查找表包括作为冷却管路压力的函数的总冷却流量。 该方法进一步确定非冷却管路压力,并将非冷却管路压力与冷却管道压力相结合以确定第一总管路压力。 指令变速器以第一总线压力运行。

    HYDRAULIC CLUTCH CONTROL MECHANISM FOR A MULTI-MODE HYBRID TRANSMISSION
    4.
    发明申请
    HYDRAULIC CLUTCH CONTROL MECHANISM FOR A MULTI-MODE HYBRID TRANSMISSION 有权
    用于多模混合变速器的液压离合器控制机构

    公开(公告)号:US20100093477A1

    公开(公告)日:2010-04-15

    申请号:US12250919

    申请日:2008-10-14

    IPC分类号: F16H31/00 F16H61/12

    摘要: An electrically variable transmission (EVT) selectively establishes various EVT modes and a neutral mode. The EVT includes a source of pressurized fluid, fluid-actuated clutches, various solenoid-actuated valves including trim valves and blocking valves adapted to control a flow of pressurized fluid to the clutches to establish the transmission operating modes, and an electronic control unit (ECU). The ECU actuates different combinations of the solenoid-actuated valves to establish the different transmission modes. The solenoid-actuated valves are configured in such a manner as to provide the EVT with one or more default operating modes in the event the ECU temporarily loses electrical power. Depending on the particular configuration, the default modes can be the neutral mode alone, or the neutral mode combined with one or more of the EVT modes, with the EVT modes enabled by providing one or both of the blocking valves with a latching feature.

    摘要翻译: 电动变速器(EVT)选择性地建立各种EVT模式和中立模式。 EVT包括加压流体源,流体驱动离合器,各种电磁致动阀,包括调节阀和阻塞阀,其适于控制加压流体流到离合器以建立变速器操作模式,以及电子控制单元(ECU )。 ECU启动电磁阀的不同组合以建立不同的传动模式。 电磁阀被构造成在ECU暂时失去电力的情况下向EVT提供一个或多个默认操作模式。 根据具体配置,默认模式可以是单独的空档模式,也可以是与一种或多种EVT模式组合的中性模式,通过为一个或两个阻塞阀提供锁定功能,EVT模式启用。

    Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission
    6.
    发明授权
    Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission 有权
    用于控制用于机电传动的液压泵的操作的方法和装置

    公开(公告)号:US08170762B2

    公开(公告)日:2012-05-01

    申请号:US12250296

    申请日:2008-10-13

    IPC分类号: F04B49/00

    摘要: A method for controlling a hydraulic flow within a powertrain comprising an electromechanical transmission mechanically-operatively coupled to an engine adapted to selectively transmit power to an output, wherein the transmission utilizes a hydraulic control system serving a number of hydraulic oil consuming functions includes monitoring minimum hydraulic pressure requirements for each of the functions, determining a requested hydraulic pressure based upon the monitoring minimum hydraulic pressure requirements and physical limits of the hydraulic control system including a maximum pressure, determining a desired flow utilizing a hydraulic control system flow model based upon the requested hydraulic pressure, and utilizing the desired flow to control an auxiliary hydraulic pump.

    摘要翻译: 一种用于控制动力系中的液压流动的方法,包括机械传动机械操作地联接到适于选择性地将动力传递到输出的发动机的机电传动,其中所述变速器利用用于多个液压油消耗功能的液压控制系统包括监测最小液压 对每个功能的压力要求,基于监测最小液压要求和液压控制系统的物理极限(包括最大压力)确定所请求的液压压力,使用基于所要求的液压的液压控制系统流量模型确定期望的流量 并且利用所需的流量来控制辅助液压泵。

    Hydraulic clutch control mechanism for a multi-mode hybrid transmission
    7.
    发明授权
    Hydraulic clutch control mechanism for a multi-mode hybrid transmission 有权
    用于多模混合变速器的液压离合器控制机构

    公开(公告)号:US08100803B2

    公开(公告)日:2012-01-24

    申请号:US12250919

    申请日:2008-10-14

    IPC分类号: F16H31/00

    摘要: An electrically variable transmission (EVT) selectively establishes various EVT modes and a neutral mode. The EVT includes a source of pressurized fluid, fluid-actuated clutches, various solenoid-actuated valves including trim valves and blocking valves adapted to control a flow of pressurized fluid to the clutches to establish the transmission operating modes, and an electronic control unit (ECU). The ECU actuates different combinations of the solenoid-actuated valves to establish the different transmission modes. The solenoid-actuated valves are configured in such a manner as to provide the EVT with one or more default operating modes in the event the ECU temporarily loses electrical power. Depending on the particular configuration, the default modes can be the neutral mode alone, or the neutral mode combined with one or more of the EVT modes, with the EVT modes enabled by providing one or both of the blocking valves with a latching feature.

    摘要翻译: 电动变速器(EVT)选择性地建立各种EVT模式和中立模式。 EVT包括加压流体源,流体驱动离合器,各种电磁致动阀,包括调节阀和阻塞阀,其适于控制加压流体流到离合器以建立变速器操作模式,以及电子控制单元(ECU )。 ECU启动电磁阀的不同组合以建立不同的传动模式。 电磁阀被构造成在ECU暂时失去电力的情况下向EVT提供一个或多个默认操作模式。 根据具体配置,默认模式可以是单独的空档模式,也可以是与一种或多种EVT模式组合的中性模式,通过为一个或两个阻塞阀提供锁定功能,EVT模式启用。