A heating apparatus for an internal combustion engine

摘要

The invention provides a heating apparatus 505 for an internal combustion engine 110 equipped with an engine oil circuit 525 which has an engine oil heat exchanger 520. The engine has a main pump 590 for circulating an engine coolant in a main coolant circuit 517, and an auxiliary pump 500 for circulating the coolant in an auxiliary coolant circuit 515 and which includes the engine oil heat exchanger. The main pump and the auxiliary pump are electrically connected to an Electronic Control Unit (ECU) 450 which can monitor an engine oil temperature in the engine oil circuit. The ECU can also energize the auxiliary pump if the monitored engine oil temperature value is lower than a predetermined threshold value. The oil temperature may be measured by a temperature sensor 385 connected to the ECU, and the ECU may both activate and deactivate the main pump.