SYSTEM AND METHOD FOR CONTROLLING AN ENGINE IN A HYBRID VEHICLE
    2.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING AN ENGINE IN A HYBRID VEHICLE 有权
    用于控制混合动力车中的发动机的系统和方法

    公开(公告)号:US20120109432A1

    公开(公告)日:2012-05-03

    申请号:US12916809

    申请日:2010-11-01

    IPC分类号: B60K6/24 G06F19/00 F02D28/00

    摘要: A method is provided for controlling a hybrid electric vehicle. The vehicle includes at least one motor-generator, an internal combustion engine employing a camshaft and a camshaft phaser, and an energy-storage device operatively connected to the engine and to the at least one motor-generator. The method includes determining whether a deceleration of the vehicle is desired, and ceasing a supply of fuel to the engine when the deceleration is desired. The method additionally includes regulating the camshaft phaser to a predetermined fuel cut-off position when the supply of fuel to the engine has been ceased, such that a magnitude of compression pulses in the engine is reduced relative to when the engine is being fueled. A system for controlling the hybrid electric vehicle and for executing the above method is also provided.

    摘要翻译: 提供一种用于控制混合动力电动车辆的方法。 车辆包括至少一个电动发电机,采用凸轮轴和凸轮轴相位器的内燃机,以及可操作地连接到发动机和至少一个电动发电机的能量存储装置。 该方法包括确定是否期望车辆的减速度,并且当需要减速时停止向发动机供应燃料。 该方法另外包括当向发动机供应燃料已经停止时将凸轮轴相位调节器调节到预定的燃料切断位置,使得发动机中的压缩脉冲的大小相对于发动机被燃油时减小。 还提供了一种用于控制混合动力电动车辆并执行上述方法的系统。

    TEMPERATURE-BASED STATE OPTIMIZATION OF A HYBRID TRANSMISSION
    3.
    发明申请
    TEMPERATURE-BASED STATE OPTIMIZATION OF A HYBRID TRANSMISSION 有权
    混合传输的基于温度的状态优化

    公开(公告)号:US20130116869A1

    公开(公告)日:2013-05-09

    申请号:US13290488

    申请日:2011-11-07

    摘要: A hybrid electric vehicle has a controller, an engine, a traction motor, and a transmission. The controller is configured for calculating, using a costing function, the total system losses incurred at each operating point of the HEV, including the losses for each of the engine, the traction motor, and the transmission. The controller selectively modifies the calculated cost of at least one of the engine, the traction motor, and the transmission in a designated one of the transmission states as a function of transmission fluid temperature. An optimal transmission state is then selected as the state having the optimal cost relative to the other transmission states. Selectively modifying the calculated cost may include penalizing the cost of using designated transmission states when the measured fluid temperature exceeds certain calibrated temperature limits. Designated operating states may be disabled above an upper temperature limit to protect the transmission from overheating.

    摘要翻译: 混合电动车辆具有控制器,发动机,牵引电动机和变速器。 控制器被配置为使用成本计算功能来计算在HEV的每个操作点处产生的总系统损耗,包括每个发动机,牵引电动机和变速器的损耗。 控制器以传输流体温度的函数以指定的一个传输状态选择性地修改发动机,牵引电动机和变速器中的至少一个的计算成本。 然后选择最佳传输状态作为具有相对于其他传输状态的最佳成本的状态。 选择性地修改计算的成本可能包括当测量的流体温度超过某些校准温度极限时惩罚使用指定的传输状态的成本。 指定的运行状态可能在上限温度以上被禁用,以保护变送器免于过热。

    Temperature-based state optimization of a hybrid transmission
    4.
    发明授权
    Temperature-based state optimization of a hybrid transmission 有权
    混合传输的基于温度的状态优化

    公开(公告)号:US08532856B2

    公开(公告)日:2013-09-10

    申请号:US13290488

    申请日:2011-11-07

    摘要: A hybrid electric vehicle has a controller, an engine, a traction motor, and a transmission. The controller is configured for calculating, using a costing function, the total system losses incurred at each operating point of the HEV, including the losses for each of the engine, the traction motor, and the transmission. The controller selectively modifies the calculated cost of at least one of the engine, the traction motor, and the transmission in a designated one of the transmission states as a function of transmission fluid temperature. An optimal transmission state is then selected as the state having the optimal cost relative to the other transmission states. Selectively modifying the calculated cost may include penalizing the cost of using designated transmission states when the measured fluid temperature exceeds certain calibrated temperature limits. Designated operating states may be disabled above an upper temperature limit to protect the transmission from overheating.

    摘要翻译: 混合电动车辆具有控制器,发动机,牵引电动机和变速器。 控制器被配置为使用成本计算功能来计算在HEV的每个操作点处产生的总系统损耗,包括每个发动机,牵引电动机和变速器的损耗。 控制器以传输流体温度的函数以指定的一个传输状态选择性地修改发动机,牵引电动机和变速器中的至少一个的计算成本。 然后选择最佳传输状态作为具有相对于其他传输状态的最佳成本的状态。 选择性地修改计算的成本可能包括当测量的流体温度超过某些校准温度极限时惩罚使用指定的传输状态的成本。 指定的运行状态可能在上限温度以上被禁用,以保护变送器免于过热。