Vehicle generator control system and method for saving fuel
First Claim
1. A vehicle generation controlling system, comprising:
- a battery supplying power to electric components of a vehicle;
a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components; and
an engine control unit (ECU) determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination;
wherein the ECU monitors a battery temperature value sensed in the battery and performs the generation control to maintain fixed voltage without changing voltage by using the monitored battery temperature value to prevent the generation control; and
wherein when the ECU determines that the generation control is prevented, the ECU stands by for a time as long as a predetermined set value of a delay time before preventing the generation control according to the determination.
1 Assignment
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Accused Products
Abstract
A vehicle generation controlling system for saving fuel includes a battery supplying power to electric components of a vehicle, a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components, and an ECU determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination. As a result, the generation control is performed based on whether an electric product of a cooling system is actuated and vehicle information on the vehicle to thereby prevent cooling performance from being deteriorated due to the generation control.
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Citations
4 Claims
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1. A vehicle generation controlling system, comprising:
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a battery supplying power to electric components of a vehicle; a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components; and an engine control unit (ECU) determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination; wherein the ECU monitors a battery temperature value sensed in the battery and performs the generation control to maintain fixed voltage without changing voltage by using the monitored battery temperature value to prevent the generation control; and wherein when the ECU determines that the generation control is prevented, the ECU stands by for a time as long as a predetermined set value of a delay time before preventing the generation control according to the determination. - View Dependent Claims (2, 3)
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4. A control method of a vehicle generation controlling system with an engine control unit (ECU) performing generation control for saving fuel by interworking with a battery and a generator connected with electric components of a vehicle, the method comprising:
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judging, by the ECU, whether an electric product of a cooling system among the electric components is in operation after an engine of the vehicle starts; judging, by the ECU, whether a value of the temperature of cooling water in vehicle information monitored from the outside is larger than a predetermined set value of the cooling water temperature when judging the electric product of the cooling system is in operation; judging, by the ECU, whether a value of the opening degree of an accelerator in the vehicle information is larger than a predetermined set value of the accelerator opening degree when judging that the value of the cooling water temperature is larger than the set value of the cooling water temperature; judging, by the ECU, whether a value of a vehicle speed in the vehicle information is larger than a predetermined set value of the vehicle speed when judging the value of the accelerator opening degree is larger than the set value of the accelerator opening degree vehicle speed; and controlling, by the ECU, the generator to prevent the generation control when judging the value of the vehicle speed is larger than the set value of the vehicle speed; wherein the ECU monitors a battery temperature value sensed in the battery and performs the generation control to maintain fixed voltage without changing voltage by using the monitored battery temperature value to prevent the generation control; and wherein the preventing of the generation control includes standing, by the ECU, for a time as long as a predetermined set value of a delay time before preventing the generation control after judging that the value of the vehicle speed is larger than the set value of the vehicle speed.
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Specification