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US 2004/0000282 A1Published application
Control apparatus for an internal combustion engine and control method thereof
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKenji Kataoka, Kimitoshi Tsuji, Yasushi Kusaka
Life of this patent
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Abstract
An engine is cranked by a motor generator at a start time of the engine. An engine ECU opens an intake valve or an exhaust valve during a compression stroke using a valve control mechanism during a period from when cranking is started until when a predetermined crank angle position (detected by a crank angle sensor) is reached, thereby reducing a compression workload.
Claims20
A control apparatus for an internal combustion engine, comprising:
- a cranking portion which performs cranking of the internal combustion engine at a start time of the engine;
- a crank angle sensor which detects a crank angle position;
- and
- a compression workload reducing portion which operates so as to reduce a compression workload of the engine during a period from when cranking is started until when a predetermined crank angle position is reached.
1 more element
A control method of a control apparatus for an internal combustion engine, comprising:
- a step of starting cranking;
- a step of detecting a crank angle position;
- and
- a step of reducing a compression workload of the engine during a period from when the cranking is started until when a predetermined crank angle position is reached.
1 more element
Dependencies are inferred from the claim text.