System and method for controlling a cooling system of an engine equipped with a start-stop system
AssigneeGM Global Technology Operations LLC
InventorsHalim G. Santoso, Eugene V. Gonze, James R. Yurgil
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Abstract
A system according to the principles of the present disclosure includes a start-stop module, a pre-ignition risk module, and a cooling control module. The start-stop module stops and restarts an engine independent from an input received from an ignition system. The pre-ignition risk module monitors a risk of pre-ignition when the engine is restarted and generates a signal based on the risk of pre-ignition. The cooling control module controls a cooling system to circulate coolant through the engine when the engine is stopped in response to the risk of pre-ignition.
Claims24
A system comprising:
- a start-stop module that stops and restarts an engine independent from an input received from an ignition system;
- a piston temperature module that estimates a piston temperature when the engine is stopped based on a period from a first time when the engine is started to a second time when the engine is stopped;
- and
- a cooling control module that controls a cooling system to circulate coolant through the engine when the engine is stopped in response to the piston temperature being greater than a first temperature.
A method comprising:
- stopping and restarting an engine independent from an input received from an ignition system;
- estimating a piston temperature when the engine is stopped based on a period from a first time when the engine is started to a second time when the engine is stopped;
- and
- controlling a cooling system to circulate coolant through the engine when the engine is stopped in response to the piston temperature being greater than a first temperature.
Dependencies are inferred from the claim text.