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GB/T 20234.3-2011 English PDF (GBT20234.3-2011)

GB/T 20234.3-2011 English PDF (GBT20234.3-2011)

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GB/T 20234.3-2011: Connection set for conductive charging of electric vehicles -- Part 3: DC charging coupler

This Part of GB/T 20234 specifies the general requirements, function definitions, type structures, parameters and size of DC charging couplers for conductive charging of electric vehicles. This Part is applicable to the vehicle couplers of Charging Mode 4 and Connection Mode C; the rated voltage is less than or equal to 750V (DC); and the rated current is less than or equal to 250 A (DC).
GB/T 20234.3-2011
GB
ICS 43.040.99
T 35
Connection Set for Conductive Charging of
Electric Vehicles -
Part 3. DC Charging Coupler
ISSUED ON. NOVEMBER 22, 2011
IMPLEMENTED ON. MARCH 1, 2012
Jointly Issued by. General Administration of Quality Supervision,
Inspection and Quarantine (AQSIQ);
Standardization Administration (SAC) of the People's
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2. Normative References ... 4
3 Term and Definition ... 4
4 General Requirement ... 4
5 Rated Value of DC Charging ... 4
6 Vehicle Coupler Function ... 5
7 Structure Size ... 7
Appendix A ... 8
Appendix B ... 14
Appendix C ... 16
Appendix D ... 17
Foreword
GB/T 20234 ?€?Connection Set for Conductive Charging of Electric Vehicles?€? is divided into 3 parts.
- Part 1. General Requirements;
- Part 2. AC Charging Coupler;
- Part 3. DC Charging Coupler.
This Part is Part 3 of GB/T 20234.
This Part is drafted according to the rules in GB/T 1.1-2009.
This Part shall be under the jurisdiction of National Technical Committee 114 on Road Vehicles of Standardization Administration of China ((SAC/TC 114) (SAC/TC 114). Chief drafting organizations of this Part. China Automotive Technology and Research Center, State Grid Corporation of China, and China National Electric Apparatus Research Institute Co., Ltd.
Participating drafting organizations of this Part. Tianjin Qingyuan Electric Vehicle Co., Ltd., China Electricity Council, Electric Power Research Institute, CSG., Potevio Sea Oil New Energy Power Co., Ltd., BYD Automobile (Shenzhen)Co., Ltd. Co., Ltd., Chery Automobile Co., Ltd., Dongfeng Electric Vehicle Co., Ltd., Shenzhen Design Institute of New Energy Power Development Co., Ltd., China Electric Power Research Institute, State Grid Electric Power Research Institute, Electric Power Research Institute of Guangdong Power Grid Corporation, Amphenol PCD Shenzhen Co., Ltd., Nanjing MENNEKES Electric Appliances Co., Ltd., and Beijing Top Electric Co., Ltd.. Chief drafting staffs of this Part. Wu Zhixin, Wu Bin, Meng Xiangfeng, Zhao Chunming, Luo Huaiping, Ni Feng, Zhang Jianhua, Shao Zhehai, Wang Xiaomao, Li Wufeng, Deng Weigaung, Fang Yunzhou, Yang Xiaolun, Zhou Guangrong, Ni Haijin, Jin Weidong, Li Qing, and Li Lei.
Connection Set for Conductive Charging of
Electric Vehicles - Part 3. DC Charging Coupler
1 Scope
This Part of GB/T 20234 specifies the general requirements, function definitions, type structures, parameters and size of DC charging couplers for conductive charging of electric vehicles.
This Part is applicable to the vehicle couplers of Charging Mode 4 and Connection Mode C; the rated voltage is less than or equal to 750V (DC); and the rated current is less than or equal to 250 A (DC).
The definitions of charging modes and connection modes can refer to Appendix A of GB/T 20234.1-2011.
2. Normative??References
The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
GB/T 20234.1-2011 Connection Set for Conductive Charging of Electric Vehicles - Part 1. General Requirements
3 Term??and??Definition
The terms and definitions of GB/T 20234.1-2011 are applicable to this document. 4 General??Requirement
The technical requirements and test methods of DC charging couplers shall meet the requirements of GB/T 20234.1-2011.
5 Rated??Value??of??DC??Charging
The rated values of DC charging couplers are detailed in Table 1.
A.2 Operation and control procedure in charging process
A.2.1 The vehicle plug and the vehicle socket-outlet shall be connected with each other to put the vehicle into a non-driving state.
The vehicle plug and socket-outlet shall be connected with each other. The vehicle overall design plan may auto-start some triggering conditions (such as open the charging door, connect the vehicle plug and socket-outlet or conduct function triggering on charge buttons or switches, etc.). Through interlocking or other control measures, vehicles are put into a non-driving state.
A.2.2 The arrangement of man machine interaction during charging. the complete connection state of the vehicle coupler is confirmed by the control device (state 3) After the charging of a non-on-board charger has been set by operators, the control device of the non-on-board charger shall judge the complete connection state between the vehicle plug and the socket-outlet through measuring the voltage of inspection point 1. For example, if the voltage of inspection point 1 is 4V, the vehicle coupler is judged as ?€?completely connected?€?. After the man machine interaction of a charger has been set by operators, and the vehicle coupler has been judged by the non-on-board charger as ?€?completely connected?€?, the non-on-board shall control the locking of the electronic lock. During the whole charging process, only when the command to stop charging is set for the non-on-board charger by the operators, the electronic lock maybe unlocked.
A.2.3 Completion of non-on-board charger's self-checking (state 4)
If the non-on-board charger completes self-checking after complete connection of the vehicle coupler, then contactor K3 and K4 will be closed, so as to turn on the conduction of the low-voltage auxiliary power supply loop-circuit. Simultaneously, the transmission of "charger identification message" shall begin periodically. After obtaining the power supply of the low-voltage auxiliary power provided by the non-on-board charger, the vehicle control device shall judge whether the vehicle coupler has been completely connected through measuring the voltage of inspection point 2. If the voltage of inspection point 2 is 6V, the vehicle control device will begin to sent "vehicle control device (or battery management system) identification message" periodically. The signal may also be served as one of the triggering conditions for the vehicles to enter a non-driving state.
A.2.4 Charging in train (state 5)
After the vehicle control device and the control device of the non-on-board charger have completed handshake and configuration phases through communication, then vehicle control device will close contactors K5 and K6 to conduct the charging loop-circuit; the control device of the non-on-board charger will close contactors K1 and K2 to conduct the DC loop-circuit.
A.2.7.4 During charging process, the control device of the non-on-board charger detects the voltage at Inspection Point 1; if switch S is judged as ?€?turn to the CLOSE state from OPEN state (State 7), and it persistently maintains for a certain time (e.g. 300ms), then control the charger to stop charging; and contactors K1, K2, K3 and K4 will be disconnected.
A.2.7.5 During charging process, the non-on-board charger detects the voltage at Inspection Point 1. If the vehicle coupler is judged as ?€?turns to OPEN state (State 8) from complete connection?€?, then control the charger to stop charging; K1, K2, K3 and K4 will be disconnected; then, the electronic lock will be unlocked.
Note. If the non-on-board charger stops charging because of serious fault, operator is required to conduct complete charging starting setting, in order to restart the charging. Appendix??D
(Informative)
Spatial Dimension Example of Vehicle Plug
The spatial dimension example of vehicle plugs is as shown in Figure D.1. Note. This Figure only expresses the relation between vehicle plugs and vehicle size, not specific product profile structure.
Figure D.1 Spatial Dimension Example of Vehicle Plug
The plug periphery profile
shall not be greater than the
practice in the diagram.
The coaster
periphery profile
shall not exceed
the practice in the
schematic diagram

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