Model-based control for torque biasing system
First Claim
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1. A power transmission device for a motor vehicle, comprising:
- a torque biasing system having a clutch pack disposed between first and second rotary members;
a motor operable to manipulate engagement of said clutch pack based on a control signal, said motor having a position sensor operable to generate a position signal, a temperature sensor operable to generate a temperature signal and a current sensor operable to generate a current signal, anda control system operable to generate said control signal based on a torque command and a calculated torque, wherein said calculated torque is determined based on a model of said torque biasing system, and wherein said calculated torque is determined based on at least one of said position signal, said temperature signal and said current signal.
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Abstract
A power transmission device equipped with a torque biasing system and control system for controlling the torque biasing system is operable to determine a torque command and calculate a torque error based on the torque command and a model-based torque. A control signal is generated based on the torque error and the torque biasing system is operated based on the control signal.
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Citations
29 Claims
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1. A power transmission device for a motor vehicle, comprising:
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a torque biasing system having a clutch pack disposed between first and second rotary members; a motor operable to manipulate engagement of said clutch pack based on a control signal, said motor having a position sensor operable to generate a position signal, a temperature sensor operable to generate a temperature signal and a current sensor operable to generate a current signal, and a control system operable to generate said control signal based on a torque command and a calculated torque, wherein said calculated torque is determined based on a model of said torque biasing system, and wherein said calculated torque is determined based on at least one of said position signal, said temperature signal and said current signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power transmission device for a motor vehicle, comprising:
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a torque biasing system having a clutch pack disposed between first and second rotary members; a motor operable to manipulate engagement of said clutch pack based on a control signal; and a control module operable to generate said control signal based on a torque command and a calculated torque, wherein said calculated torque is determined based on a model of said torque biasing system, and wherein a temperature sensor associated with said clutch pack generates a temperature signal that is used by said control module to determine said calculated torque. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A power transmission device for a motor vehicle, comprising:
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a torque biasing system having a clutch pack disposed between first and second rotary members; a motor operable to manipulate engagement of said clutch pack based on a control signal; and a control module operable to generate said control signal based on a torque command and a calculated torque, wherein said calculated torque is based on a calculated interconnection position of said clutch pack, and wherein said interconnection position is based on a model of said torque biasing system. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A power transmission device for a motor vehicle, comprising:
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a torque biasing system having a clutch pack disposed between first and second rotary members; a motor operable to manipulate engagement of said clutch pack based on a control signal; and a control module operable to generate said control signal based on a torque command and a calculated torque, wherein said calculated torque is determined based on a model of said torque biasing system which includes a motor module, a clutch operator module and a clutch pack module. - View Dependent Claims (28, 29)
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Specification