Control system for electric power generating apparatus on vehicle
First Claim
1. A control system for controlling an electric power generating apparatus mounted on a vehicle which has a propulsive electric motor powered by a battery, and having an electric generator and an internal combustion engine for actuating the electric generator to generate an electric power output to charge the battery depending on a charged/discharged state of the battery, comprising:
- charged/discharged state detecting means for detecting a charged/discharged state of the battery;
purged-gas adsorbed state detecting means for detecting an adsorbed state of a purged gas in a canister disposed in a fuel supply system of the internal combustion engine;
first operation control means for operating the internal combustion engine to enable the electric generator to charge the battery if said charged/discharged state detecting means detects when an amount of electric energy stored in the battery is smaller than a predetermined value or when a time-dependent rate of increase of an amount of electric energy discharged from the battery is greater than a predetermined level; and
second operation control means for operating the internal combustion engine to purge the canister if the charged/discharged state of the battery detected by said charged/discharged state detecting means fails to satisfy a condition for said first operation control means to operate the internal combustion engine and if said purged-gas adsorbed state detecting means detects when an amount of the purged gas adsorbed in the canister is greater than a predetermined amount;
wherein the first and second operation control means operate the internal combustion engine in modes established respectively for the first and second operation control means such that a load imposed on the internal combustion engine when the internal combustion engine is operated by at least said second operation control means is smaller than a load imposed on the internal combustion engine when the internal combustion engine is operated by said first operation control means.
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Accused Products
Abstract
An electric power generating apparatus is mounted on a vehicle which has a propulsive electric motor powered by a battery, and has an electric generator and an internal combustion engine for actuating the electric generator to charge the battery depending on a charged/discharged state of the battery. A first operation controller operates the internal combustion engine to enable the electric generator to charge the battery if the amount of electric energy stored in the battery is smaller than a predetermined value or the time-dependent rate of increase of an amount of electric energy discharged from the battery is greater than a predetermined level. A second operation controller operates the internal combustion engine to purge a canister if the charged/discharged state of the battery fails to satisfy a condition for the first operation controller to operate the internal combustion engine and if the amount of a purged gas adsorbed in the canister is greater than a predetermined amount. The first and second operation controllers operate the internal combustion engine in modes established respectively for the first and second operation controllers such that a load imposed on the internal combustion engine when the internal combustion engine is operated by at least the second operation controller is smaller than a load imposed on the internal combustion engine when the internal combustion engine is operated by the first operation controller.
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Citations
7 Claims
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1. A control system for controlling an electric power generating apparatus mounted on a vehicle which has a propulsive electric motor powered by a battery, and having an electric generator and an internal combustion engine for actuating the electric generator to generate an electric power output to charge the battery depending on a charged/discharged state of the battery, comprising:
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charged/discharged state detecting means for detecting a charged/discharged state of the battery; purged-gas adsorbed state detecting means for detecting an adsorbed state of a purged gas in a canister disposed in a fuel supply system of the internal combustion engine; first operation control means for operating the internal combustion engine to enable the electric generator to charge the battery if said charged/discharged state detecting means detects when an amount of electric energy stored in the battery is smaller than a predetermined value or when a time-dependent rate of increase of an amount of electric energy discharged from the battery is greater than a predetermined level; and second operation control means for operating the internal combustion engine to purge the canister if the charged/discharged state of the battery detected by said charged/discharged state detecting means fails to satisfy a condition for said first operation control means to operate the internal combustion engine and if said purged-gas adsorbed state detecting means detects when an amount of the purged gas adsorbed in the canister is greater than a predetermined amount; wherein the first and second operation control means operate the internal combustion engine in modes established respectively for the first and second operation control means such that a load imposed on the internal combustion engine when the internal combustion engine is operated by at least said second operation control means is smaller than a load imposed on the internal combustion engine when the internal combustion engine is operated by said first operation control means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification