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System and method of controlling crankshaft torque during a transmission shift with torque capacity-based torque reduction range selection
System and method of controlling crankshaft torque during a transmission shift with torque capacity-based torque reduction range selection
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机译:通过基于扭矩容量的扭矩减小范围选择来控制变速箱变速箱中曲轴扭矩的系统和方法
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摘要
A control system for use with an engine and a transmission in a vehicle is provided that includes at least one controller having a processor with at least one stored algorithm that determines different crankshaft torque capacities associated with different respective torque actuators including a relatively slow torque actuator, such as an airflow actuator, and at least one relatively fast torque actuator, such as a spark actuator or a fuel actuator. The algorithm determines a torque actuation range over which to modify engine torque during an oncoming shift of the transmission. The torque actuation range may be based at least partially on a target gear of the upshift, desired shift duration, and a vehicle operating condition indicative of an operator intent regarding shift duration. Requests for torque modification by use of the torque actuators are then made to provide the torque actuation range.
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