초록 ▼

A temperature control system, in a liquid cooled internal combustion engine equipped with a radiator, controls the state of a flow control valve for controlling flow of a temperature control fluid through a passageway in the engine. Sensors detect the engine oil temperature and the temperature of th

A temperature control system, in a liquid cooled internal combustion engine equipped with a radiator, controls the state of a flow control valve for controlling flow of a temperature control fluid through a passageway in the engine. Sensors detect the engine oil temperature and the temperature of the temperature control fluid. An engine computer receives signals from the sensors and compares the signals to one or more predetermined values. In one embodiment, the engine computer compares the engine oil temperature signal to a predetermined value to control actuation of the valve. In another embodiment, the engine computer compares the engine oil temperature signal to a predetermined engine oil temperature value. The engine computer adjusts a predetermined temperature control fluid temperature value based on the comparison of the engine oil temperature signal to the predetermined engine oil temperature value. The engine computer then compares the temperature control fluid temperature signal to the adjusted temperature control fluid temperature. The engine computer actuates the flow control valve based on the comparison of the temperature control fluid temperature signal to the adjusted temperature control fluid temperature.

대표청구항 ▼

A temperature control system in a liquid cooled internal combustion engine equipped with a radiator and an engine, the system comprising: a flow control valve for controlling flow of a temperature control fluid between the engine and the radiator, the flow control valve having a first state for inhi

A temperature control system in a liquid cooled internal combustion engine equipped with a radiator and an engine, the system comprising: a flow control valve for controlling flow of a temperature control fluid between the engine and the radiator, the flow control valve having a first state for inhibiting said flow and a second state for allowing said flow; a first sensor for sensing a temperature indicative of engine oil temperature and for providing an engine oil temperature signal; and a second sensor for sensing a temperature control fluid temperature and for providing a temperature control fluid temperature signal; and an engine computer for receiving the engine oil temperature signal and the temperature control fluid temperature signal, the engine computer comparing the engine oil temperature signal to a predetermined engine oil temperature value to determine the temperature state of the engine, the engine computer determining a temperature control fluid temperature value for controlling the valve state, the temperature control fluid temperature value being a function of the comparison of the engine oil temperature to the predetermined engine oil temperature, the engine computer comparing the temperature control fluid temperature signal to the temperature control fluid temperature value to determine a desired valve state, the engine computer providing signals for controlling the actuation of the flow control valve between its first and second states as a function of the comparisons.