Patent ID: 6427640
Filing Date: 2002-08-06
Classification: F01M,F01P,F16H

Abstract:
A system for heating and cooling fluids within a vehicle of the type including an engine and a transmission, said system comprising:an oil-to-water heat exchanger which is fluidly coupled to said engine and which receives heated water from said engine; a controller which is operable under stored program control; a solenoid valve which is communicatively coupled to said controller, effective to electronically control said solenoid valve, said solenoid valve further being fluidly coupled to said oil-to-water heat exchanger and to said transmission, said electronically controlled solenoid valve being effective to selectively channel transmission oil through said oil-to-water heat exchanger based on at least one parameter, thereby selectively heating and cooling said transmission oil; and at least one sensor which is communicatively coupled to said controller and which is effective to measure said at least one parameter and to generate signals to said controller representing said measured at least one parameter, wherein said at least one parameter comprises a temperature of said transmission oil.