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US 8,979,708 B2Granted
Torque converter clutch slip control systems and methods based on active cylinder count
AssigneeGM Global Technology Operations LLC
InventorJoseph B. Burtch
Life of this patent
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Abstract
A torque converter clutch control system of a vehicle includes a target slip module and a slip control module. The target slip module determines a target torque converter clutch slip based on an average number of activated cylinders of an engine during a predetermined period. The slip control module controls a torque converter clutch based on the target torque converter clutch slip.
Claims18
A torque converter clutch control system of a vehicle, comprising:
- a target slip module that determines a target torque converter clutch slip based on an average number of activated cylinders of an engine during a predetermined period;
- a slip error module that determines a slip error based on a difference between the target torque converter clutch slip and a slip of the torque converter clutch;
- and
- a slip control module that controls a torque converter clutch based on the target torque converter clutch slip and the slip error.
1 more element
A torque converter clutch control method for a vehicle, comprising:
- determining a target torque converter clutch slip based on an average number of activated cylinders of an engine during a predetermined period;
- determining a slip error based on a difference between the target torque converter clutch slip and a slip of the torque converter clutch;
- and
- controlling a torque converter clutch based on the target torque converter clutch slip and the slip error.
1 more element
Dependencies are inferred from the claim text.