SYSTEM AND METHOD FOR CONTROLLING ENGINE TORQUE
First Claim
1. An engine control system for a vehicle, comprising:
- a power request determination module that determines a power request for an engine based on input from a driver of the vehicle and a speed of the vehicle;
a desired speed determination module that determines a desired speed of the engine based on a speed of a turbine in a torque converter, a state of a clutch in the torque converter, and one of the power request, a first amount of clutch slip, and a second amount of clutch slip; and
a torque control module that determines a desired engine torque based on the desired engine speed and the power request, and that controls torque output of the engine based on the desired engine torque.
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Abstract
An engine control system for a vehicle includes a power request determination module, a desired speed determination module, and a torque control module. The power request determination module determines a power request for an engine based on a request from a driver of the vehicle and a speed of the vehicle. The desired speed determination module determines a desired speed of the engine based on a speed of a turbine in a torque converter of the engine, a state of a clutch in the torque converter, and one of the power request, a first amount of clutch slip, and a second amount of clutch slip. The torque control module determines a desired engine torque based on the desired engine speed and the power request and controls torque output of the engine based on the desired engine torque.
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Citations
20 Claims
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1. An engine control system for a vehicle, comprising:
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a power request determination module that determines a power request for an engine based on input from a driver of the vehicle and a speed of the vehicle; a desired speed determination module that determines a desired speed of the engine based on a speed of a turbine in a torque converter, a state of a clutch in the torque converter, and one of the power request, a first amount of clutch slip, and a second amount of clutch slip; and a torque control module that determines a desired engine torque based on the desired engine speed and the power request, and that controls torque output of the engine based on the desired engine torque. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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determining a power request for an engine based on input from a driver of a vehicle and a speed of the vehicle; determining a desired speed of the engine based on a speed of a turbine in a torque converter, a state of a clutch in the torque converter, and one of the power request, a first amount of clutch slip, and a second amount of clutch slip; determining a desired engine torque based on the desired engine speed and the power request; and controlling torque output of the engine based on the desired engine torque. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification