Magnetorheological damper temperature compensation - thermal model
AssigneeDelphi Technologies, Inc.
InventorsRobin Oakley, David A. Shal, David J. Barta
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Abstract
The invention provides a method of controlling at least one magnetorheological damper. The invention also provides a computer usable medium including a program and a suspension control system for achieving the same. The method includes calculating a power input coefficient based on at least one power input characteristic. A power dissipation coefficient is calculated based on at least one power dissipation characteristic. A damper temperature is estimated based on the calculated power input coefficient and the calculated power dissipation coefficient. At least one dampening force characteristic is modulated based on the estimated damper temperature.
Claims21
A method of controlling at least one magnetorheological damper, the method comprising:
- calculating a power input coefficient based on at least one power input characteristic;
- calculating a power dissipation coefficient based on at least one power dissipation characteristic;
- estimating a damper temperature based on the calculated power input coefficient and the calculated power dissipation coefficient;
- and
- modulating at least one dampening force characteristic based on the estimated damper temperature.
A computer usable medium including a program for controlling at least one magnetorheological damper, the computer usable medium comprising:
- computer readable program code for calculating a power input coefficient based on at least one power input characteristic;
- computer readable program code for calculating a power dissipation coefficient based on at least one power dissipation characteristic;
- computer readable program code for estimating a damper temperature based on the calculated power input coefficient and the calculated power dissipation coefficient;
- and
- computer readable program code for modulating at least one dampening force characteristic based on the estimated damper temperature.
A suspension control system for controlling at least one magnetorheological damper, the system comprising:
- means for calculating a power input coefficient based on at least one power input characteristic;
- means for calculating a power dissipation coefficient based on at least one power dissipation characteristic;
- means for estimating a damper temperature based on the calculated power input coefficient and the calculated power dissipation coefficient;
- and
- means for modulating a dampening force characteristic based on the calculated damper temperature.
Dependencies are inferred from the claim text.