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US 8,062,178 B2Granted
Temperature control of dual input clutch transmission
AssigneeFord Global Technologies, LLC
InventorsEli Avny, Steven G. Thomas, Piero Aversa
Life of this patent
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Abstract
A system for controlling temperature of a transmission clutch includes a housing containing the clutch, a fan for circulating air through the housing and over the clutch, and a controller configured to determine an inferred temperature at a reference surface on the clutch and to actuate the fan in response to the inferred temperature.
Claims9
A system for controlling temperature of a clutch that transmits power from a power source to transmission gearing, comprising:
- a housing containing the clutch;
- a fan for circulating air through the housing and over the clutch;
- a controller configured to determine an inferred temperature at a reference surface on the clutch, access a lower limit temperature, and turn the fan off if the inferred temperature is less than the lower limit temperature.
A method for controlling temperature of a clutch comprising the steps of:
- (a) providing a housing containing a dual input clutch;
- (b) providing a fan for circulating air through the housing;
- (c) determining an inferred temperature on a surface of the clutch within the housing;
- (d) turning the fan on if the inferred temperature is greater than a upper limit temperature and turning the fan off if the inferred temperature is less than a lower limit temperature.
1 more element
Dependencies are inferred from the claim text.