CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
First Claim
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.
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Accused Products
Abstract
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.
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Citations
20 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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 means that estimates a temperature of the internal combustion engine at the time of starting up the internal combustion engine.
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13. A control method for an internal combustion engine provided in a vehicle in which a battery and the internal combustion engine are mounted, the control method comprising the steps of:
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measuring a voltage of the battery at the time of starting up the internal combustion engine; estimating a temperature of the internal combustion engine based on the voltage of the battery; and controlling the internal combustion engine based on the temperature of the internal combustion engine. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification