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GB/T 19596-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 04
Replacing GB/T 19596-2004
Terminology of electric vehicles
电动汽车术语
ISSUED ON. OCTOBER 14, 2017
IMPLEMENTED ON. MAY 01, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
Standardization Administration of the People's Republic of
China.
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Table of Contents
Foreword ... 3 
1 Scope .. 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
Index of corresponding English words ... 49 
Foreword
This standard was drafted in accordance with the rules given GB/T 1.1-2009.
This standard replaces GB/T 19596-2004 “Terminology of electric vehicles”. As
compared with GB/T 19596-2004, in addition to editorial changes, the main
technical changes are as follows.
- ADD the electric vehicle terminology classified in accordance with the off-
vehicle charging capability and driving mode selection (see 3.1.1.2);
- ADD such drive and driving device terms as electric drive system, high
pressure system, and so on (see 3.1.2.1);
- ADD the terms on the safety performance and economic performance of
electric vehicles (see 3.1.3.2 and 3.1.3.3);
- DELETE the terms of the motor maximum operating speed (see 3.2.5 of
2004 version);
- ADD the rechargeable energy storage device terms classified in
accordance with packaging and performance (see 3.3.1.3 and 3.3.1.4)
- ADD the terms on rechargeable energy storage system power performance
(see 3.3.3.6);
- MODIFY the term of charger (see 3.4).
This standard was proposed by the Ministry of Industry and Information
Technology of the People's Republic of China.
This standard shall be under the jurisdiction of the National Automotive
Standardization Technical Committee (SAC/TC 114).
The drafting organizations of this standard. China Automotive Technology
Research Center, BYD Automotive Industry Co., Ltd., Anhui Ankai Automobile
Co., Ltd., China First Automobile Co., Ltd. Technology Center, Shanghai
Automotive Group Co., Ltd. Technology Center, Zhengzhou Yutong Bus Co.,
Ltd. , Zhejiang Younet Motor Co., Ltd., Southeast (Fujian) Automotive Industry
Co., Ltd., Anhui Jianghuai Automobile Co., Ltd., Pan Asia Automotive
Technology Center Co., Ltd., Chery New Energy Vehicle Technology Co., Ltd.,
Dongfeng Motor Corporation Technology Center, Hunan CRRC Times Electric
Vehicle Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd.
Terminology of electric vehicles
1 Scope
This standard defines the terms and definitions related to electric vehicles.
This standard applies to electric vehicle, drive motor system, rechargeable
energy storage system and charger.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this document.
GB/T 2900.41 Electrotechnical terminology - Primary and secondary cells
and batteries
GB/T 19752 Hybrid electric vehicle - Power performance - Test methods
GB/T 24548 Fuel cell electric vehicles - Terminology
GB/T 30038 Road vehicles - Degrees of protection (IP-code) - Protection of
electrical equipment against foreign objects, water and access
3 Terms and definitions
The terms and definitions as defined in GB/T 2900.41, GB/T 19752, GB/T
24548 and GB/T 30038 as well as the following terms and definitions apply to
this document.
3.1 Vehicle
3.1.1
Electric vehicle; EV
The following vehicles are collectively called electric vehicles.
3.1.1.1
3.1.1.2.2.2
Non off-vehicle-chargeable hybrid electric vehicle; NOVC-HEV
Hybrid electric vehicles that obtains full energy from on-vehicle fuel under
normal use.
3.1.1.2.3 In accordance with selection method of driving mode
3.1.1.2.3.1
Hybrid electric vehicle with selective switch
Hybrid electric vehicles with manual driving mode selection. Vehicle
selectable driving modes include pure electric mode, thermal mode and
hybrid mode.
3.1.1.2.3.2
Hybrid electric vehicles without selective switch
Hybrid electric vehicles without manual driving mode selection functions.
The vehicle driving mode can be automatically switched based on different
working conditions.
3.1.1.2.4
Range extended electric vehicle; REEV
An electric vehicle capable of achieving all of its power performance in a
purely electric mode, but when the on-vehicle rechargeable energy storage
system cannot meet the requirements of the cruising range, the vehicle
auxiliary power supply device is turned on to provide electric power for the
power system to extend the range of the electric vehicle. The on-vehicle
auxiliary power supply device and the drive system do not have drive-
connections such as drive shaft (belt).
3.1.1.3
Fuel cell electric vehicle; FCEV
Electric vehicles using the fuel cell system as a single power source or using
both the fuel cell system and the rechargeable energy storage system as a
hybrid power source.
3.1.1.3.1
3.1.2.1.4.2
Electric power train
Electric power train composed of electric driving system and drive system.
3.1.2.1.4.3
Hybrid power train
Power train of a hybrid electric vehicle, composed of a power source that
can add fuel and an electric power train.
3.1.2.1.5
Drive direction control
A special device for selecting the direction of the vehicle travel (forward or
reverse) by the driver’s operation. For example. joystick or button switch.
3.1.2.1.6
Vehicle control unit
Powertrain controller, which collects the accelerator pedal signal, brake
pedal signal and other component signals, makes the appropriate judgments,
controls the actions of each underlying component controller, to realize the
vehicle drive, brake, and energy recovery.
3.1.2.1.7
Electric power system
Circuit systems that generate, transport, and use electrical energy, including
power supplies.
3.1.2.1.8
Regenerative braking
The system that converts (or partially converts) the kinetic energy and
potential energy of the vehicle in the driving process into the energy of the
on-board rechargeable energy storage system and store it when the vehicle
slides, slows down or descends.
3.1.2.1.9
Power battery system
The device on the vehicle body to accommodate a charging socket
(conductive charging) or charging port (inductive charging).
3.1.2.2.5
Passenger compartment
The space that accommodates the occupants, enclosed by the roof, floor,
side walls, doors, glass windows and front wall, back wall or rear seat back
support plate, and electrical protection bar to prevent occupants from
touching live parts, and enclosure.
3.1.2.3 Electrical installations and components
3.1.2.3.1
Energy storage
Devices installed in the electric vehicles to store electric energy, including a
variety of power batteries, supercapacitors and flywheel batteries, etc., or a
combination of them.
3.1.2.3.2
Live part
Conductors or conductive parts that are energized during normal use.
3.1.2.3.3
Conductive part
The portion that allows current to pass, which is not energized during normal
operation, but can become a live part in the event of a basic insulation failure.
3.1.2.3.4
Exposed conductive part
The conductive part touched by the joint test finger of IPXXB (protection level
code).
Note. This concept is for a specific circuit, the live part of a circuit may be the
exposed conductor of another circuit. For example, the passenger vehicle
body may be a live part of the auxiliary circuit, but it is an exposed conductor
to the power circuit.
3.1.2.3.5
3.1.3.2.1
Unintended starting
The starting movement of vehicle in an unexpected situation.
3.1.3.2.2
Creepage distance
The shortest distance along the surface of the solid insulating material
between the two electrically conductive parts.
3.1.3.2.3
Direct contact
Contact of human or animal with live parts.
3.1.3.2.4
Indirect contact
Contact of human or animal with a part which becomes into an exposed
conductive part in the event of a failure of basic insulation.
3.1.3.2.5
Basic insulation
Insulation on live parts for basic protection against electric shock (in the
absence of a fault).
Note. The basic insulation need not include functional insulation.
3.1.3.2.6
Supplementary insulation
Independent insulation used outside of basic insulation for protection against
electric shock in the event of a basic insulation failure.
3.1.3.2.7
Double insulation
Insulation that have the basic insulation and supplementary insulation at the
same time.
Electric shock
Physiological effects caused by current passing through the body.
3.1.3.2.15
Enclosure
Components used to prevent equipment from being exposed to some
external influence or direct contact in any direction.
Note. External influences may include the ingress of water or dust, to prevent
mechanical damage.
3.1.3.2.16
Potential equalization
The minimization of potential difference between the exposed conductive
parts of the electrical equipment.
3.1.3.2.17
Maximum working voltage
The AC voltage r.m.s. or DC voltage maximum value that may occur in the
power system under normal working state, ignoring transient peaks.
3.1.3.2.18
Voltage class A electric circuits
The power components or circuits that have the maximum working voltage
less than or equal to 30 V a.c. (r.m.s.) or less tan and equal to 60 V d.c.
3.1.3.2.19
Voltage class B electric circuits
Electrical components or circuits with a maximum operating voltage greater
than 30V a.c. (r.m.s.) and less than or equal to 1000 V a.c. (r.m.s.), or greater
than 60 V d.c. and less than or equal to 1500 V d.c.
3.1.3.2.20
Single point failure
The convertor that turns on/off the input DC voltage at certain frequency,
thereby changing the average output voltage.
3.2.4 Related devices
3.2.4.1
DC / DC convertor (converter)
Convertor that converts a certain DC power supply voltage into any DC
voltage.
3.2.4.2
Cooling equipment
Device for cooling the motor and controller.
3.2.5 performance parameters
3.2.5.1
Rated power
Output power at rated conditions.
3.2.5.2
Continuous power
Prescribed maximum, long-term working power.
3.2.5.3
Peak power ......

Related standard: GB/T 12542-2020    GB/T 21085-2020
Related PDF sample: GB/T 19596-2004    GB/T 19754-2015