Control apparatus and control method for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTaichi Nishimura
Life of this patent
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Abstract
An engine ECU executes a program including detecting, when refueling with an alcohol fuel is performed, a refueling amount of the alcohol fuel based on a signal transmitted from a sender gauge, increasing DI ratio r that is a ratio between a fuel injection amount from an in-cylinder injector and a fuel injection amount from an intake passage injector, according to the refueling amount of the alcohol fuel, such that the ratio of the fuel injection amount from the in-cylinder injector is higher, and retarding the ignition timing according to the refueling amount of the alcohol fuel.
Claims16
1-3. (canceled)
A control apparatus for an internal combustion engine provided with an in-cylinder injector or injecting fuel into a cylinder and an intake passage injector or injecting fuel into an intake passage, and using an alcohol fuel, said control apparatus comprising:
- a sender gauge or detecting information concerning refueling of a fuel tank;
- and
- an operation unit, wherein
- said operation unit controls a ratio between an injection amount from said in-cylinder injector and an injection amount from said intake passage injector, according to a refueling amount of said fuel tank.
(canceled)
7-10. (canceled)
A control method for an internal combustion engine provided with an in-cylinder injector for injecting fuel into a cylinder and an intake passage injector for injecting fuel into an intake passage, and using an alcohol fuel, said control method comprising the steps of:
- detecting information concerning refueling of a fuel tank;
- and
- controlling a ratio between an injection amount from said in-cylinder injector and an injection amount from said intake passage injector, according to a refueling amount of said fuel tank.
(canceled)
14-17. (canceled)
A control apparatus for an internal combustion engine provided with an in-cylinder injector for injecting fuel into a cylinder and an intake passage injector for injecting fuel into an intake passage, and using an alcohol fuel, said control apparatus comprising:
- means for detecting information concerning refueling of a fuel tank;
- and
- control means for controlling a ratio between an injection amount from said in-cylinder injector and an injection amount from said intake passage injector, according to a refueling amount of said fuel tank.
(canceled)
(canceled)
Dependencies are inferred from the claim text.