CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

A control apparatus and a control method for an internal combustion engine in a vehicle in which a battery and the internal combustion engine are mounted estimate a temperature of the internal combustion engine based on battery voltage. The control apparatus estimates water temperature TWS, at the time of starting up the internal combustion engine, based on battery voltage VB before starting the startup of the internal combustion engine or minimum value VBmin of battery voltage VB during cranking. Then, the control apparatus controls a fuel injection amount and a valve timing based on water temperature TWS estimated based on battery voltage VB when a water temperature sensor has failed.

主权项

1. A control apparatus for an internal combustion engine provided in a vehicle in which a battery and the internal combustion engine are mounted, the control apparatus comprising:
a temperature estimating unit that estimates a temperature of the internal combustion engine at the time of starting up the internal combustion engine based on a voltage of the battery.