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    • 36. 发明申请
    • METHOD FOR CONTROLLING OUTPUT TORQUE IN POWERTRAINS
    • 用于控制动力传动系统输出扭矩的方法
    • US20110125352A1
    • 2011-05-26
    • US12625604
    • 2009-11-25
    • Sean W. McGroganAnthony H. Heap
    • Sean W. McGroganAnthony H. Heap
    • B60W20/00G06F7/00
    • B60W20/13B60L2240/486B60W10/06B60W10/08B60W20/00B60W30/1846B60W50/06B60W2540/10B60W2710/1022Y02T10/6286Y02T10/7258Y10T477/30Y10T477/637Y10T477/641Y10T477/688
    • A method of controlling output torque in a hybrid or electric vehicle transmissions includes calculating a first long-term output torque constraint and a first short-term output torque constraint. A first effective output torque constraint is determined from at least one of the first long-term and short-term output torque constraints. The first effective output torque constraint is bounded by both of the first long-term and short-term output torque constraints. The method may further include calculating a rate limit, such that determining the first effective output torque constraint includes restricting the magnitude of changes in the first long-term output torque constraint to the calculated rate limit. A spread between the first short-term output torque constraint and the first effective output torque constraint may be measured, and the rate limit calculated as a function of that spread. The rate limit may also be calculated with an inversely-proportional relationship to the spread.
    • 控制混合动力或电动车辆变速器中的输出转矩的方法包括计算第一长期输出转矩约束和第一短期输出转矩约束。 从第一长期和短期输出转矩约束中的至少一个确定第一有效输出转矩约束。 第一个有效输出转矩约束受第一个长期和短期输出转矩约束的限制。 该方法还可以包括计算速率限制,使得确定第一有效输出转矩约束包括将第一长期输出转矩约束中的变化的幅度限制到计算的速率极限。 可以测量第一短期输出转矩约束与第一有效输出转矩约束之间的差值,并且计算出作为该扩展的函数的速率限制。 速率限制也可以与扩展成反比关系来计算。