Internal combustion engine control device
AssigneeHitachi Astemo, Ltd.
InventorsKazuhiro Oryoji, Yoshihiko Akagi, Takayasu Matsushita
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Abstract
Provided is an internal combustion engine control device capable of reducing a measurement load and calculating a flow velocity around an ignition plug. The internal combustion engine control device includes an inter-gap voltage calculation unit 31 and a flow velocity calculation unit 32. The inter-gap voltage calculation unit 31 calculates a reference inter-gap voltage under a reference condition, based on a secondary current and in-cylinder pressure. The flow velocity calculation unit calculates the flow velocity of a gas around the ignition plug based on the reference inter-gap voltage.
Claims15
An internal combustion engine control device that controls an internal combustion engine including an ignition plug disposed in a hollow of a cylinder and an ignition coil for applying a voltage to the ignition plug, the internal combustion engine control device comprising:
- an inter-gap voltage calculation unit that calculates a reference inter-gap voltage that is a voltage between gaps of the ignition plug under a reference condition, based on a secondary current generated on a secondary side of the ignition coil and in-cylinder pressure that is pressure in the hollow of the cylinder;
- and
- a flow velocity calculation unit that calculates a flow velocity of a gas around the ignition plug based on the reference inter-gap voltage.
Dependencies are inferred from the claim text.