GAS VAPOR CONTROL SYSTEM AND METHOD THEREOF
First Claim
1. A gas vapor control system, comprising:
- a canister for capturing gas vapor that is generated from a fuel;
a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine;
a gas passage that communicates from the canister to one side downstream of the throttle valve disposed in the intake passage;
a purge control valve disposed on the gas passage; and
a control portion configured to stop the engine in an idle state and control a real fuel injection amount (Fr) that is to be injected into the engine while restarting the engine according to a first fuel amount (Va) that is included in gas vapor that is discharged in the intake passage from the gas passage.
1 Assignment
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Accused Products
Abstract
A gas vapor control system may include a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that communicates from the canister to one side downstream of the throttle valve, a purge control valve that is disposed on the gas passage, and a control portion that stops an engine in an idle state and controls a real fuel injection amount that is to be injected while restarting the engine according to a first fuel amount that is included in gas vapor that is discharged into the intake passage.
8 Citations
20 Claims
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1. A gas vapor control system, comprising:
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a canister for capturing gas vapor that is generated from a fuel; a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine; a gas passage that communicates from the canister to one side downstream of the throttle valve disposed in the intake passage; a purge control valve disposed on the gas passage; and a control portion configured to stop the engine in an idle state and control a real fuel injection amount (Fr) that is to be injected into the engine while restarting the engine according to a first fuel amount (Va) that is included in gas vapor that is discharged in the intake passage from the gas passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A gas vapor control method that includes a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that communicates from the canister to one side downstream of the throttle valve positioned in the intake passage, and a purge control valve that is disposed on the gas passage, the method comprising:
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stopping an engine in an idle state; closing the throttle valve and opening the purge control valve if stop of an engine in an idle state is detected; calculating a first fuel amount (Va) that is included in gas vapor that is in the intake passage in front of the throttle valve; and calculating a real fuel injection amount (Fr) according to the first fuel amount (Va) while restarting the engine. - View Dependent Claims (17, 18, 19, 20)
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Specification