CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

A control apparatus is applied to an internal combustion engine. The engine comprises a water pump, and an oil pump. The apparatus makes a second motor to drive the water pump drive the oil pump, if the first motor to drive the oil pump malfunctions. Consequently, if the first motor malfunctions, the oil pump can be driven by the second motor. Thus, the possibility of seizing of the sliding portions of the engine can be reduced. Further, if the first motor malfunctions, the friction in the engine can be reduced, since the oil pump is not driven by the crank shaft.

主权项

1. A control apparatus for an internal combustion engine in which lubrication is performed using a lubrication oil discharged from an oil pump, and cooling is performed using a coolant discharged from a water pump, wherein said internal combustion engine comprises,
a first motor for driving said oil pump; a second motor for driving said water pump; and a first change over mechanism whose state changes between a first state and a second state, said first state being a state in which said second motor cannot drive said oil pump, and said second state being a state in which said second motor can drive said oil pump; wherein, said control apparatus comprises, a malfunction determination means for determining whether or not said first motor malfunctions; and a control means for realizing said first state using said first change over mechanism if it is not determined that said first motor malfunctions, and for realizing said second state using said first change over mechanism if it is determined that said first motor malfunctions.