MULTI-PARTY COMMUNICATION CONTROL SYSTEM AND CHARGE PROCESS OF DC CHARGING SYSTEM

• US 20130229143A1
• Filed: 03/10/2012
• Published: 09/05/2013
• Est. Priority Date: 03/02/2012
• Status: Abandoned Application

• Current Assignee: Ship and Ocean Industries R&D Center
• Original Assignee: Ship and Ocean Industries R&D Center
• Inventors: Liao, Ying-Chao, Lin, Chih-Hung, CHOU, SHEAN-KWANG, Lin, Hung-Gsi, Chen, Sheng-Hua, Hsu, Hsiao-Yu, Fang, Ming-En, Hsu, Kai-Ping, Pan, Wen-Hua
• Application Number:
  US13/417,239
• Publication Number:
  US 20130229143A1
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries

Abstract

A multi-party communication control system and charge process of a DC charging system is provided. According battery pack information transmitted by a battery control system, a multi-party communication control device determines a charge current or a charge voltage and a voltage-controlled charge mode required by a battery pack. The multi-party communication control device then translates the charge voltage or the charge current to a CHAdeMO language that is next transmitted to a CHAdeMO charger.

Claims

1. A multi-party communication control system for a direct-current (DC) charge system, comprising:

a multi-party communication control device, for selecting a charge voltage, a charge current and a voltage-controlled charge mode, and translating and exchanging languages adopted by a controller area network (CAN) bus and an RS-485 interface;

a relay, connected to the multi-party communication control device, for activating and inactivating charging of a battery pack; and

a charge dock, connected to the relay and the multi-party communication control system, for connecting to a charge plug.

2. The system according to claim 1, wherein the multi-party communication control device comprises a core controller and a communication controller.

3. The system according to claim 2, wherein the core controller is an industrial computer, a chip or a programmable controller.

4. The system according to claim 1, wherein the multi-party communication device communicates with a CHAdeMO (Charge de Move, or Charge for Moving) charger via the CAN bus, communicates with a battery management system via the RS-485 communication interface, and communicates with a central control system via the RS-485 communication interface.

5. The system according to claim 4, wherein the battery management system detects a voltage, a current, a temperature, remaining electric power and a battery abnormality of the battery pack, and transmits detected results to the multi-party communication control device.

6. The system according to claim 4, wherein the central control system monitors and records a voltage, a current, a temperature and remaining electric power of the battery pack.

7. The system according to claim 5, wherein the battery abnormality comprises an over-voltage, an over-current, an over-temperature and a leakage current.

8. The system according to claim 4, wherein the battery management system transmits a latest battery status every second to the multi-party communication control device.

9. The system according to claim 4, wherein the multi-party communication control device and the CHAdeMO charger exchange current charge status information every 100 ms as the charge process begins.

10. The system according to claim 1, wherein the charge plug is connected to the CHAdeMO charger.

11. A charge process of a multi-party communication control device for a DC charge system, comprising:

a) by a multi-party communication control device, determining whether a vessel accelerator is in a parking gear, and performing Step (b) when a determination result is affirmative, or else iterating Step (a);

b) by the multi-party communication control device, determining whether a charge plug of a CHAdeMO (Charge de Move, or Charge for Moving) charger is plugged to a charge dock, and performing Step (c) when a determination result is affirmative, or else iterating Step (b);

c) by a battery management system a current, transmitting a voltage, a temperature and remaining electric power of a batter pack to the multi-party communication control device;

d) by the multi-party communication control device, selecting a charge voltage or a charge current and a voltage-control charge mode for the battery pack;

e) by the multi-party communication control device, translating the charge voltage or the charge current required by the battery pack to a language adopted by the CHAdeMO charger, and transmitting the translated language to the CHAdeMO charger;

f) by the CHAdeMO charger, determining whether an activation button is pressed;

g) by the multi-party communication control device, activating a relay;

h) by the multi-party communication control device, determining whether an abnormality is present;

i) by the CHAdeMO charger, determining whether an emergency stop button is pressed;

j) by the multi-party communication control device, determining whether charging is complete; and

k) by the multi-party communication control device, turning off the relay to end the charge process.

12. The charge process according to claim 11, wherein the voltage-control charge mode in Step (d) is a constant-current charge mode when a voltage of at least one battery of the battery pack is lower than 4.1V, and is a constant-voltage charge mode when the voltage of the at least one battery of the battery pack is higher than 4.1V.

13. The charge process according to claim 11, wherein the abnormality in Step (h) comprises a battery abnormality and a charging abnormality.

14. The charge process according to claim 13, wherein the battery abnormality comprises an over-voltage, an over-current, an over-temperature and a leakage current.

15. The charge process according to claim 13, wherein the charging abnormality is determined as present when a mismatch between an actual charge voltage and current and the required charge voltage and current occurs.

16. The charge process according to claim 13, wherein the charging abnormality is determined as present when a reception failure of signals from the battery management system to the multi-party communication control device occurs for over five seconds.

17. The charge process according to claim 13, wherein the charging abnormality is determined as present when a reception failure of mutual signals of the multi-party communication control device and the CHAdeMO charger occurs for over one second.