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    Hybrid vehicle and method of control for engine transient mitigation
    3.
    发明授权
    Hybrid vehicle and method of control for engine transient mitigation 有权
    混合动力车辆和发动机瞬态减速控制方法

    公开(公告)号：US08442711B2

    公开(公告)日：2013-05-14

    申请号：US13007700

    申请日：2011-01-17

    申请人： Fazal Urrahman Syed ,  Qing Wang ,  Carol Louise Okubo ,  Ryan Abraham McGee ,  Ming Lang Kuang

    发明人： Fazal Urrahman Syed ,  Qing Wang ,  Carol Louise Okubo ,  Ryan Abraham McGee ,  Ming Lang Kuang

    IPC分类号： B60L11/00

    CPC分类号： B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W20/15 ,  B60W30/20 ,  B60W2030/206 ,  B60W2530/14 ,  B60W2540/10 ,  B60W2710/0677 ,  Y02T10/6239 ,  Y02T10/6286

    摘要： A hybrid vehicle and method of control are associated with the following operation. A quantized previous engine power command based on a previous engine power command is obtained. A current engine power command is quantized. The quantized current engine power command is maintained if the magnitude of the difference between the current engine power command and the quantized previous engine power command is larger than a threshold. The quantized current engine power command is set equal to the quantized previous engine power command if the magnitude of the difference between the current engine power command and the quantized previous engine power command is smaller than the threshold. An output engine power command based on the quantized current engine power command is generated. An engine of the hybrid vehicle is operated based on the output engine power command.

    摘要翻译： 混合动力车辆和控制方法与以下操作相关联。 获得基于先前发动机功率命令的量化的先前发动机功率命令。 当前的发动机功率指令被量化。 如果当前发动机功率命令和量化的先前发动机功率命令之间的差的大小大于阈值，则维持量化的当前发动机功率命令。 如果当前发动机功率命令和量化的先前发动机功率命令之间的差的大小小于阈值，则将量化的当前发动机功率命令设置为等于量化的先前发动机功率命令。 产生基于量化当前发动机功率指令的输出发动机功率指令。 基于输出发动机功率指令来操作混合动力车辆的发动机。

    Engine transient mitigation for hybrid vehicles
    6.
    发明授权
    Engine transient mitigation for hybrid vehicles 有权
    混合动力汽车发动机瞬态减速

    公开(公告)号：US08285470B2

    公开(公告)日：2012-10-09

    申请号：US12915456

    申请日：2010-10-29

    申请人： Qing Wang ,  Fazal Urrahman Syed ,  Brandon R. Masterson ,  Xiaoyong Wang ,  Ming Lang Kuang ,  Ryan Abraham McGee

    发明人： Qing Wang ,  Fazal Urrahman Syed ,  Brandon R. Masterson ,  Xiaoyong Wang ,  Ming Lang Kuang ,  Ryan Abraham McGee

    IPC分类号： B60W20/00

    CPC分类号： B60W20/13 ,  B60K6/445 ,  B60W10/06 ,  B60W20/00 ,  B60W2510/0619 ,  B60W2710/0666 ,  F02D29/02 ,  Y02T10/6239

    摘要： A method and system for limiting a fast transient in an engine in a hybrid vehicle is provided. The predicted fuel loss percentage is calculated from an inferred air-fuel ratio (inferred lambda). The rate limit term is calculated from a measured air-fuel ratio (measured lambda) and an engine torque command change rate. The predicted fuel loss percentage and the rate limit term are inputs into a calibration table to determine an engine power rate limit and an engine torque rate limit. An engine torque command is limited using the engine torque rate limit to control a fast engine torque transient for an engine. An engine power command is limited using the engine power rate limit to control the fast engine power transient for the engine.

    摘要翻译： 提供了一种用于限制混合动力车辆中的发动机中的快速瞬变的方法和系统。 从推测的空燃比（推测的λ）计算预测的燃料损失百分比。 速率限制项是根据测量的空燃比（测量λ）和​​发动机扭矩指令变化率计算的。 预测的燃料损失百分比和速率限制项是用于确定发动机功率限制和发动机转矩限制的校准表的输入。 使用发动机转矩限制来限制发动机转矩指令，以控制发动机的快速发动机转矩瞬变。 使用发动机功率限制来限制发动机功率命令，以控制发动机的快速发动机功率瞬变。