Method of controlling electronic controlled thermostat

Details Method of controlling electronic controlled thermostat Method of controlling electronic controlled thermostat

2008-01-22

2008-01-22

Tyler, Cheryl (Department: 3744)

Automatic temperature and humidity regulation

Cooling radiator

C236S034500, C236S09300A, C236S09300A, C236S09900R, C123S041020, C123S041050, C123S041100

Reexamination Certificate

active

10496016

ABSTRACT:
An electronically controlled thermostat control method is obtained which makes it possible to eliminate the response delay from the time that the required cooling water temperature is set to the time that the actual cooling water temperature reaches the set water temperature by controlling the flow rate, and to realize high cooling water temperature tracking characteristics with a high degree of precision at a low cost.The method of the present invention is characterized in that in an electronically controlled thermostat which is used to control the cooling water temperature of an engine, and which comprises an actuator that can arbitrarily vary the degree of valve opening without depending only on the actual cooling water temperature, the actuator is controlled by the control controller, which has means for calculating the elapsed time from the powering of the actuator to the variation of the water temperature for predicting the water temperature after the elapsed time when the cooling water temperature is controlled to an arbitrarily set water temperature, and the actuator is controlled in advance in accordance with the above-described predicted water temperature.

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