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US 2019/0170031 A1Published application
System and method for controlling variable oil pump
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsYonggyu Lee, Ho Sung Nam
Life of this patent
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Abstract
A system for controlling a variable oil pump is provided. The system includes a variable oil pump that varies a discharge pressure of oil and an actuator that is operated to vary the discharge pressure of the oil of the variable oil pump. A controller turns the actuator on or off based a relationship between an outdoor temperature and a cooling water temperature of an engine.
Claims20
A system for controlling a variable oil pump, comprising:
- a variable oil pump configured to vary a discharge pressure of oil;
- an actuator operated to vary the discharge pressure of the oil of the variable oil pump;
- and
- a controller configured to operate the actuator to turn on or off,
- wherein the controller is configured to execute a control logic of turning on the actuator based on an entry hysteresis line in which the actuator is turned on according to an increase in a cooling water temperature of an engine, based on an outdoor temperature, and
- wherein the controller is configured to execute a control logic of turning off the actuator based on an escape hysteresis line in which the actuator is turned off according to a decrease in the cooling water temperature of the engine, based on the outdoor temperature.
3 more elements
A system for controlling a variable oil pump, comprising:
- a variable oil pump configured to vary a discharge pressure of oil;
- an actuator operated to vary the discharge pressure of the oil of the variable oil pump;
- and
- a controller configured to turn the actuator on or off,
- wherein the controller is configured to execute a logic of turning on or off the actuator according to an outdoor temperature and a cooling water temperature of an engine.
2 more elements
A method for controlling a variable oil pump, comprising:
- turning, by a controller, an actuator on or off, wherein the actuator is operated to vary a discharge pressure of oil in a variable oil pump;
- executing, by the controller, a control logic of turning on the actuator based on an entry hysteresis line in which the actuator is turned on according to an increase in a cooling water temperature of an engine, based on an outdoor temperature;
- and
- executing, by the controller, a control logic of turning off the actuator based on an escape hysteresis line in which the actuator is turned off according to a decrease in the cooling water temperature of the engine, based on the outdoor temperature.
1 more element
Dependencies are inferred from the claim text.