Control apparatus of electric water pump

Abstract

A control apparatus of an electric water pump of the present invention is configured by an engine control unit on a side of an engine and an electric water pump in a cooling water circulating circuit of the engine. The engine control unit transmits signals of a measured water temperature and a target water temperature of the engine, and the electric water pump includes a drive control unit for executing control of adjusting a flow rate of the water pump on the basis of the signals of the measured water temperature and the target water temperature.

1 . A control apparatus of an electric water pump, comprising: in a cooling water circulating circuit of an engine,
 an engine control unit on a side of the engine; and   an electric water pump, wherein   the engine control unit transmits signals of a measured water temperature and a target water temperature of the engine, and   the electric water pump has a drive control unit for controlling to adjust a flow rate of the electric water pump on the basis of the signals of the measured water temperature and the target water temperature.   
     
     
         2 . The control apparatus of an electric water pump according to  claim 1 , wherein the drive control unit of the electric water pump includes a flow rate map corresponding to the number of rotations of the electric water pump, and executes a control of determining the number of pump rotations with respect to a target flow rate on the basis of the flow rate map. 
     
     
         3 . The control apparatus of an electric water pump according to  claim 1 , wherein the drive control unit of the electric water pump transmits the number of pump rotations and/or a signal of diagnosis information relating to the water pump.