Dynamic hysteresis evaluation method for hybrid vehicles based on optimal power loss control strategy
First Claim
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1. A hybrid control system, comprising:
- a power loss (PL) determination module that determines a power loss of a hybrid drivetrain based on an engine speed, a motor speed, and a vehicle speed;
a hysteresis estimation module that determines an average power loss of the hybrid drivetrain based on the power loss and that determines a hysteresis power loss of the hybrid drivetrain based on the average power loss; and
a mode determination module that selects an operation mode of the hybrid drivetrain based on the hysteresis power loss,wherein the hybrid control system controls the hybrid drivetrain based on the operation mode.
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Abstract
A hybrid control system comprises a power loss (PL) determination module, a hysteresis estimation module, and a mode determination module. The PL determination module determines a power loss of a hybrid drivetrain based on an engine speed, a motor speed, and a vehicle speed. The hysteresis estimation module determines an average power loss of the hybrid drivetrain based on the power loss and determines a hysteresis power loss of the hybrid drivetrain based on the average power loss. The mode determination module selects an operation mode of the hybrid drivetrain based on the hysteresis power loss. The hybrid control system controls the hybrid drivetrain based on the operation mode.
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Citations
19 Claims
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1. A hybrid control system, comprising:
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a power loss (PL) determination module that determines a power loss of a hybrid drivetrain based on an engine speed, a motor speed, and a vehicle speed; a hysteresis estimation module that determines an average power loss of the hybrid drivetrain based on the power loss and that determines a hysteresis power loss of the hybrid drivetrain based on the average power loss; and a mode determination module that selects an operation mode of the hybrid drivetrain based on the hysteresis power loss, wherein the hybrid control system controls the hybrid drivetrain based on the operation mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a hybrid control system, comprising:
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determining a power loss of a hybrid drivetrain based on an engine speed, a motor speed, and a vehicle speed; determining an average power loss of the hybrid drivetrain based on the power loss; determining a hysteresis power loss of the hybrid drivetrain based on the average power loss; selecting an operation mode of the hybrid drivetrain based on the hysteresis power loss; and controlling the hybrid drivetrain based on the operation mode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification