Control method of an electronic thermostat valve
AssigneesHyundai Motor Company, Inzi Controls Co. Ltd.
InventorWerner Leu Peter
Life of this patent
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Abstract
The present invention relates to a method of controlling an electronic thermostat valve that is based on the driving conditions. The method includes using controlling parameters memorized in an ECU (Electronic Control Unit). A power source to activate the thermostat valve is originated from an expanding force of a thermal element and a change of stroke of an actuating means. A cooling system of a vehicle can be maintained in an optimized state such that fuel consumption and exhaust pollutants are reduced.
Claims18
A method for controlling an electronic thermostat valve, comprising:
- control logic for changing a geometrical volume of a thermal element chamber wherein said control logic sends a controlling signal to an actuator means based on calculation of the optimal coolant temperature(component temperature)in a combustion engine, whereby the coolant temperature at which the thermostat valve opens and controls can be varied within a preferable temperature range.
A method for controlling an electronic thermostat valve in a vehicle with an engine and radiator, wherein said valve is actuated by a thermal element disposed within a chamber having a volume, said method comprising adjusting responsiveness of the thermal element by changing the volume of the chamber based on determination of a temperature differential across the engine and radiator.
A method for controlling an electronic thermostat valve, comprising:
- measuring coolant temperature of a vehicle;
- calculating a difference between said measured coolant temperature and a predetermined coolant temperature;
- and
- actuating a volume change of a chamber housing a thermal element based on said calculated difference such that a temperature at which the thermal element undergoes a phase change is varied within a desired range.
Dependencies are inferred from the claim text.