BATTERY INFORMATION DISPLAY APPARATUS OF ELECTRIC VEHICLE

• US 20150073633A1
• Filed: 07/09/2014
• Published: 03/12/2015
• Est. Priority Date: 09/09/2013
• Status: Active Grant

• Current Assignee: LSIS Co. Ltd. (LS Corporation)
• Original Assignee: LSIS Co. Ltd. (LS Corporation)
• Inventors: JANG, Byung Woon, JANG, Jae Hoon, KANG, Yong Jin, PARK, Hong Tae
• Granted Patent: US 9,211,884 B2
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: G01R 31/367 Software therefor, e.g. for battery testing using modelling or look-up tables
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: H01M 10/00 Secondary cells; Manufacture thereof
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 10/488 Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A battery information display apparatus is provided. The battery information display apparatus includes a data storage unit storing battery capacity information according to temperature and current of a battery of an electric vehicle, an integrated power control unit providing power for charging the battery and driving a motor, a sensor measuring the temperature and current of the battery, and a display unit displaying a battery remnant. The integrated power control unit calculates the battery remnant from the battery temperature and current measured by the sensor on the basis of the battery capacity information according to the battery temperature and current stored in the data storage unit and provides the calculated battery remnant to the display unit.

Claims

1. A battery information display apparatus comprising:

a data storage unit storing battery capacity information according to temperature and current of a battery of an electric vehicle;

an integrated power control unit providing power for charging the battery and driving a motor;

a sensor measuring the temperature and current of the battery; and

a display unit displaying a battery remnant,

wherein the integrated power control unit calculates the battery remnant from the battery temperature and current measured by the sensor on the basis of the battery capacity information according to the battery temperature and current stored in the data storage unit and provides the calculated battery remnant to the display unit.

2. The battery information display apparatus according to claim 1, wherein the integrated power control unit calculates the battery remnant according to the following Equation:

3. The battery information display apparatus according to claim 1, wherein

the data storage unit further stores battery current consumption information and official mileage information according to a motor driving current and speed,

the sensor further measures the motor driving current and speed,

the display unit further displays a distance to empty, and

the integrated power control unit calculates the distance to empty according to driving on the basis of the battery current consumption information according to the motor driving current and speed, and the official mileage information, and further provides the calculated distance to empty to the display unit.

4. The battery information display apparatus according to claim 3, wherein the integrated power control unit calculates driving state based battery available capacity in correspondence to the battery current consumption information according to the motor driving current and speed, and calculates the distance to empty according to the driving on the basis of the driving state based battery available capacity and the official mileage information.

5. The battery information display apparatus according to claim 4, wherein the integrated power control unit calculates the distance to empty according to the following Equation:

DTE=official mileage*driving state based battery available capacity*SOC

where, the DTE denotes the distance to empty and SOC denotes the battery remnant.

6. The battery information display apparatus according to claim 3, wherein the data storage unit stores driving history information and charge/discharge information, and

the integrated power control unit calculates an optimal driving condition on the basis of the driving history information and the charge/discharge information stored in the data storage unit, and displays the calculated optimal driving condition on the display unit.

7. The battery information display apparatus according to claim 6, wherein the optimal driving condition comprises the motor driving current and speed.

8. The battery information display apparatus according to claim 6, wherein the integrated power control unit transmits the driving history information, the charge/discharge information, and the optimal driving condition to a device or a server for managing the electric vehicle through a wired or wireless communication interface.

9. A battery information display apparatus comprising:

a data storage unit storing battery capacity information according to temperature and current of a battery of an electric vehicle;

an integrated power control unit providing power for charging the battery and driving a motor and measuring the battery current and motor temperature or temperature of the integrated power control unit; and

a display unit displaying a battery remnant,

wherein the data storage unit comprises association information between the motor temperature or the integrated power control unit temperature and the battery temperature, and

the integrate power control unit estimates the battery temperature from the motor temperature or the integrated power control unit temperature on the basis of the association information, calculates the battery remnant from the estimated battery temperature and the battery current on the basis of the battery capacity information according to the battery temperature and current stored in the data storage unit, and provides the calculated battery remnant to the display unit.

10. The battery information display apparatus according to claim 9, wherein the integrate power control unit calculates the battery remnant according to the following Equation:

11. The battery information display apparatus according to claim 9, wherein

the data storage unit further stores battery current consumption information and official mileage information according to a motor driving current and speed,

the integrated power control unit measures the motor driving current and speed,

the display unit further displays a distance to empty, and

the integrated power control unit calculates the distance to empty according to driving on the basis of battery current consumption information and official mileage information according to the motor driving current and speed, and provides the calculated distance to empty to the display unit.

12. The battery information display apparatus according to claim 11, wherein the integrated power control unit calculates driving state based battery available capacity in correspondence to the battery current consumption information according to the motor driving current and speed, and calculates the distance to empty according to the driving on the basis of the driving state battery available capacity and the official mileage information.

13. The battery information display apparatus according to claim 12, wherein the integrated power control unit calculates the distance to empty according to the Equation:

DTE=official mileage*driving state based battery available capacity*SOC

where, the DTE denotes the distance to empty and SOC denotes the battery remnant.

14. The battery information display apparatus according to claim 11, wherein the data storage unit stores driving history information and charge/discharge information, and

the integrated power control unit calculates an optimal driving condition on the basis of the driving history information and the charge/discharge information stored in the data storage unit and displays the optimal driving condition on the display unit.

15. The battery information display apparatus according to claim 14, wherein the optimal driving condition comprises the motor driving current and speed.

16. The battery information display apparatus according to claim 14, wherein the integrated power control unit transmits the driving history information, the charge/discharge information, and the optimal driving condition to a device or a server for managing the electric vehicle through a wired or wireless communication interface.