SYSTEM AND METHOD FOR CHARGING BATTERY
First Claim
1. A system for charging a battery, comprising:
- a high voltage battery configured to supply electrical energy necessary to assist in a motor during acceleration of a vehicle, and configured to store electrical energy generated by a motor regeneration during deceleration of the vehicle or occurrence of a margin output of an engine;
an on board charger configured to receive alternating current (AC) power from a power supply supplied from the outside, and supply power for charging the high voltage battery; and
a battery management system configured to transmit and receive charging and discharging information regarding the high voltage battery to and from the power supply through the on board charger using controller area network (CAN) communication.
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Accused Products
Abstract
A system for charging a battery is provided. The system includes a high voltage battery that supplies electrical energy necessary to assist in a motor during acceleration of a vehicle and stores electrical energy generated by a motor regeneration during declaration of the vehicle or occurrence of a margin output of an engine. An on board charger receive AC power from a power supply which is supplied from the outside and supplies power for charging the high voltage battery. A battery management system transmits and receives charging and discharging information regarding the high voltage battery to and from the power supply through the on board charger using controller area network (CAN) communication.
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Citations
11 Claims
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1. A system for charging a battery, comprising:
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a high voltage battery configured to supply electrical energy necessary to assist in a motor during acceleration of a vehicle, and configured to store electrical energy generated by a motor regeneration during deceleration of the vehicle or occurrence of a margin output of an engine; an on board charger configured to receive alternating current (AC) power from a power supply supplied from the outside, and supply power for charging the high voltage battery; and a battery management system configured to transmit and receive charging and discharging information regarding the high voltage battery to and from the power supply through the on board charger using controller area network (CAN) communication. - View Dependent Claims (2, 3)
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4. A method for charging a battery, the method comprising:
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receiving, by a battery management system (BMS), a voltage and a current from an on board charger, and measuring a temperature of the battery and a state of charge (SOC) of the battery; initializing, by the BMS, information of the battery; estimating, by a controller, a temperature increase amount of the battery during charging of the battery; calculating, by the controller, a charging prediction time of the battery; determining, by the controller, whether the battery is able to be fully charged using the temperature increase amount of the battery; when the battery is not able to be fully charged, estimating, by the controller, a discharging amount SOC of the battery and a discharging time of the battery up to a temperature of the battery at which the battery is able to be fully charged using a battery temperature model; calculating, by the controller, a charging prediction time of the battery after the discharging of the battery; and comparing, by the controller, the charging prediction time of the battery with a value obtained by adding the discharging time up to the temperature of the battery at which the battery is able to be fully charged and the charging prediction time of the battery. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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Specification