METHOD FOR CONTROLLING ELECTRONICALLY-CONTROLLED THERMOSTAT

摘要

An object of the present invention enhances the combustion efficiency in a n automobile by performing temperature control of cooling water in the engine in accordance with various states of operation. Parameters from a variety of sensors which detect the state of the engine are inputted into an engine control unit. Whe n the engine control unit determines from values of the throttle opening and engine rotation speed that the engine loads is about to decrease, the electronic thermostat is performe d to maintain the cooling water of the high temperature. When it is determined that medium or high loads are due to increase, the control is switched such that the said thermostat is controlled by reading a target temperature corresponding to these parameter values from the engine control unit. The said thermostat variably sets the cooling water temperatur e in an engine control unit in accordance with the engine load.