Controller for internal combustion engine and method for controlling internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsRyota SUGIYAMA, Yuto IKEDA, Takanobu GOTOH
Life of this patent
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Abstract
An internal combustion engine includes a catalyst arranged in an exhaust passage, a fuel injection valve that supplies fuel to a cylinder, and an ignition device. A controller controls a fuel injection amount of the fuel injection valve and an ignition timing of the ignition device. The controller executes a fuel supply process that supplies fuel of the internal combustion engine from the fuel injection valve to the catalyst and a correction process that corrects an amount of fuel supplied to the catalyst during the fuel supply process so that the catalyst is supplied with less fuel when the ignition timing is retarded than when the ignition timing is advanced.
Claims4
A controller for an internal combustion engine, wherein the internal combustion engine includes a catalyst arranged in an exhaust passage, a fuel injection valve configured to supply fuel to a cylinder, and an ignition device, the controller comprising:
- processing circuitry, wherein:
- the processing circuitry is configured to control a fuel injection amount of the fuel injection valve and an ignition timing of the ignition device;
- the processing circuitry is configured to execute a fuel supply process that supplies fuel of the internal combustion engine from the fuel injection valve to the catalyst;
- and
- the processing circuitry is configured to execute a correction process that corrects an amount of fuel supplied to the catalyst during the fuel supply process so that the catalyst is supplied with less fuel when the ignition timing is retarded than when the ignition timing is advanced.
A method for controlling an internal combustion engine, wherein the internal combustion engine includes a catalyst arranged in an exhaust passage, a fuel injection valve configured to supply fuel to a cylinder, and an ignition device, the method comprising:
- controlling a fuel injection amount of the fuel injection valve and an ignition timing of the ignition device;
- executing a fuel supply process that supplies fuel of the internal combustion engine from the fuel injection valve to the catalyst;
- and
- executing a correction process that corrects an amount of fuel supplied to the catalyst during the fuel supply process so that the catalyst is supplied with less fuel when the ignition timing is retarded than when the ignition timing is advanced.
Dependencies are inferred from the claim text.