Apparatus for managing power of a vehicle and a method of controlling the same

• US 10,276,897 B2
• Filed: 08/30/2016
• Issued: 04/30/2019
• Est. Priority Date: 03/23/2016
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Kwon, Jae Min
• Primary Examiner(s): Nguyen, Danny
• Application Number:
  US15/251,741
• Publication Number:
  US 20170274795A1
• Time in Patent Office: 973 Days
• Field of Search: 307 101, 307 30- 31, 307131, 320128, 320134
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/40 The network being an on-board power network, i.e. within a vehicle
• CPC Class Codes: H02J 7/00306 Overdischarge protection
• CPC Class Codes: H02J 7/0031 using battery or load disconnect circuits H02J9/002 takes precedence
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 9/002 in which a reserve is maintained in an energy source by disconnecting non-critical loads, e.g. maintaining a reserve of charge in a vehicle battery for starting an engine
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

An apparatus for managing power of a vehicle and a method of controlling the same, for effectively shutting off dark current are disclosed. The method includes determining a first battery state when a preset first condition is satisfied; cutting off a first portion load or all loads based on the determination of the first battery state; determining a second battery state when a preset second condition is satisfied; and releasing load interruption or cutting off a second portion load except for the first portion load from the all loads based on the determination of the second battery state.

Claims

1. A method for controlling an apparatus for managing power of a vehicle, the method comprising:

determining a first battery state when a preset first condition is satisfied;

cutting off all loads when the first battery state is equal to or more than a reference value based on the determination of the first battery state;

cutting off a first portion load when the first battery state exceeds the reference value based on the determination of the first battery state;

determining a second battery state when a preset second condition is satisfied; and

releasing load cut off or cutting off a second portion load except for the first portion load among the all loads based on the determination of the second battery state.

2. The method according to claim 1, wherein the cutting off of the first portion load comprises sequentially cutting off different loads according to a timer value.

3. The method according to claim 1, wherein the releasing of load cut off or the cutting off of the second portion load comprises:

determining whether the all loads are cut off when the second battery state is equal to or more than a reference value as a result of the determination of the second battery state; and

cutting off the second portion load when the all loads are cut off.

4. The method according to claim 3, wherein the releasing of load cut off or the cutting off of the second portion load comprises releasing the load cut off when the second battery state exceeds a reference value as a result of the determination of the second battery state.

5. The method according to claim 1, wherein the battery state comprises state of charge (SOC) information.

6. The method according to claim 5, wherein the SOC information is transmitted from a smart key controller (SMK).

7. The method according to claim 6, wherein the SMK acquires the SOC information from a battery sensor when a vehicle is turned off (IG OFF state).

8. The method according to claim 7, wherein the SMK is operated as a local interconnection network (LIN) master controller in the IG OFF state when the SMK is connected to the battery sensor via LIN communication.

9. A computer readable recording medium having recorded thereon a program for executing the method according to claim 1.

10. An apparatus for managing power of a vehicle, the apparatus comprising:

a communication module configured to receive information on a battery state;

a microcomputer; and

an interrupter configured to cut off power supplied to each of at least one load according to control of the microcomputer,

wherein the microcomputer is configured to;

determine a first battery state when a preset first condition is satisfied;

control cut off of all loads when the first battery state is equal to or more than a reference value based on the determination of the first battery state;

control cut off of a first portion load when the first battery state exceeds the reference value based on the determination of the first battery state; and

determine a second battery state when a preset second condition is satisfied and to control the interrupter to release load cut off or to cut off a second portion load except for the first portion load from the all loads according to a result of the determination of the second battery state.

11. The apparatus according to claim 10, wherein the microcomputer is configured to sequentially cut off different loads according to a timer value from the first portion load.

12. The apparatus according to claim 10, wherein the microcomputer is configured to determine whether all the loads are cut off when the second battery state is equal to or more than a reference value as a result of the determination of the second battery state, and configured to cut off the second portion load when the all loads are cut off.

13. The apparatus according to claim 12, wherein to release load cut off or to cut off of the second portion load, the microprocessor is configured to release the load cut off when the second battery state exceeds a reference value as a result of the determination of the second battery state.

14. The apparatus according to claim 10, wherein the battery state comprises a state of charge (SOC) information.

15. The apparatus according to claim 14, wherein the SOC information is transmitted from a smart key controller (SMK).

16. The apparatus according to claim 15, wherein the SMK acquires the SOC information from a battery sensor when a vehicle is turned off (IG OFF state).

17. The apparatus according to claim 16, wherein the SMK is operated as a local interconnection network (LIN) master controller in the IG OFF state when the SMK is connected to the battery sensor via LIN communication.

18. The apparatus according to claim 10, wherein:

the apparatus comprises a smart junction box (SIB); and

the interrupter comprises an intelligent power switch (IPS).