Vehicle having controller for managing battery and method for the same

Patent metadata

Field	Value
Publication number	US-10744900-B2
Application number	US-201715793863-A
Country	US
Kind code	B2
Filing date	Oct 25, 2017
Priority date	Jul 19, 2017
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

Disclosed are a vehicle and method for managing a battery for vehicle. The vehicle includes a battery configured to be charged and discharged while connected to a charger; and a controller configured to charge the battery by distributing charging current for the battery with the foremost priority if the charging current for the battery is smaller than consumption current, and distribute the consumption current after a state of charge (SoC) of the battery reaches a target charging level.

First claim

What is claimed is:

1. A vehicle comprising:
a battery configured to be charged and discharged while connected to a charger; and
a controller configured to:
charge the battery by distributing charging current for the battery with a foremost priority if the charging current for the battery is smaller than consumption current, and
heat the battery by distributing the consumption current after a state of charge (SoC) of the battery reaches a target charging level,
wherein the controller, when an air conditioning is scheduled, performs extra heating of the battery before performing the air conditioning based on a degree of decrease in temperature of the battery expected by performing the air conditioning.

2. The vehicle of claim 1 , wherein the controller is configured to maintain the battery not to be heated until the SoC of the battery reaches the target charging level.

3. The vehicle of claim 1 , wherein if battery charging only is requested, the target charging level includes a user's target SoC.

4. The vehicle of claim 1 , further comprising:
a battery heater configured to heat the battery; and
an air conditioner configured to manage temperature, humidity, and air cleanliness in the vehicle.

5. The vehicle of claim 4 , wherein the controller is configured to drive the battery heater and the air conditioner after the battery is charged to the target charging level, if battery charging and reserved air conditioning are requested by a user.

6. The vehicle of claim 5 , wherein the target charging level includes a user's target SoC or an SoC required for heating the battery.

7. The vehicle of claim 5 , wherein the controller is configured to drive the battery heater with a higher priority than the air conditioner.

8. The vehicle of claim 4 , wherein the controller is configured to drive the air conditioner considering a starting time of the vehicle after the battery is charged to the target charging level, if reserved air conditioning is requested by a user.

9. The vehicle of claim 8 , wherein the target charging level includes a user's target SoC.

10. The vehicle of claim 4 , wherein the controller is configured to drive the battery heater after the battery is charged to the target charging level, if battery heating is requested by a user.

11. The vehicle of claim 1 , wherein the consumption current comprises
a current required to manage the vehicle including a battery heating current, an Low Voltage DC-DC Converter (LDC) driving current, and an air conditioning current.

12. A method for managing a battery of a vehicle, the method comprising:
starting charging of the battery;
comparing charging current for the battery and consumption current;
keeping the battery charged by distributing the charging current for the battery with a top priority, if the charging current for the battery is smaller than the consumption current;
heating the battery by distributing the consumption current after a state of charge (SoC) of the battery reaches a target charging level; and
performing, when an air conditioning is scheduled, extra heating of the battery before performing the air conditioning based on a degree of decrease in temperature of the battery expected by performing the air conditioning.

13. The method of claim 12 , further comprising: maintaining the battery not to be heated until a state of charge (SoC) of the battery reaches a target charging level, when the battery is charged.

14. The method of claim 13 , wherein the target charging level includes a user's target SoC or an SoC required for heating the battery.

15. The method of claim 12 , further comprising: if battery heating and reserved air conditioning are requested by a user before distributing the charging current for the battery with the top priority, driving a battery heater and an air conditioner after an SoC of the battery reaches a target charging level when the battery is charged.

16. The method of claim 15 , wherein driving the battery heater and the air conditioner after the SoC of the battery reaches the target charging level when the battery is charged comprises driving the battery heater with the higher priority than the air conditioner.

17. The method of claim 12 , further comprising: if reserved air conditioning is requested by a user before the charging current for the battery is distributed first, driving an air conditioner considering a starting time of the vehicle after an SoC of the battery reaches a target charging level when the battery is charged.

18. The method of claim 12 , further comprising: if heating of the battery is requested by a user before the charging current for the battery is distributed first, driving a battery heater after an SoC of the battery reaches a target charging level when the battery is charged.

19. The method of claim 12 , wherein the consumption current comprises
a current required to manage the vehicle including a battery heating current, an Low Voltage DC-DC Converter (LDC) driving current, and an air conditioning current.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Ko Kyubeom
• Chung Seungmyun
• Shin Jincheol
• Yang Chae Mo
• Lee Taewoo
• Shin Deok Keun
• You Jaeseok

Classifications

• B60L58/27

  by heating · CPC title

• B60L58/12 Primary

  responding to state of charge [SoC] · CPC title

• B60L58/10

  for monitoring or controlling batteries · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title