Coolant control systems and methods for transmission temperature regulation
AssigneeGM Global Technology Operations LLC
InventorsCasie M. BOCKENSTETTE, Eugene V. GONZE, William C. SAINDON
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Abstract
A coolant control system of a vehicle includes a pump control module and a coolant valve control module. The pump control module selectively activates a coolant pump. The coolant pump pumps coolant into coolant channels formed in an integrated exhaust manifold (IEM) of an engine. The coolant valve control module selectively actuates a coolant valve that controls coolant flow from the coolant channels formed in the IEM to a transmission heat exchanger based on a first temperature of a transmission and a second temperature of coolant within the integrated exhaust manifold of the engine.
Claims20
A coolant control system of a vehicle, comprising:
- a pump control module that selectively activates a coolant pump, wherein the coolant pump pumps coolant into coolant channels formed in an integrated exhaust manifold (IEM) of an engine;
- and
- a coolant valve control module that selectively actuates a coolant valve that controls coolant flow from the coolant channels formed in the IEM to a transmission heat exchanger based on a first temperature of a transmission and a second temperature of coolant within the integrated exhaust manifold of the engine.
A coolant control method for a vehicle, comprising:
- selectively activating a coolant pump that pumps coolant into coolant channels formed in an integrated exhaust manifold (IEM) of an engine;
- and,
- based on a first temperature of a transmission and a second temperature of coolant within the integrated exhaust manifold of the engine, selectively actuating a coolant valve that controls coolant flow from the coolant channels formed in the IEM to a transmission heat exchanger.
Dependencies are inferred from the claim text.