GB/T 29317-2021Terminology of electric vehicle charging/battery swap infrastructure (English PDF)

3.1 Charging / battery swap infrastructure

The general term for related facilities that provide electric energy for electric vehicles.

3.1.1 Charging infrastructure

The general term for related facilities that use the whole vehicle charging method to provide electric energy for electric vehicles.

3.1.2 Battery swap infrastructure

The general term for related facilities that provide electric energy to electric vehicles through battery swap.

3.1.3 Charging and battery swap station

A place that can provide complete vehicle charging service and battery swap service for electric vehicles at the same time.

3.2 Charging equipment

A device that is connected to an electric vehicle or a power battery in a conductive or wireless manner to provide electrical energy for it.

3.3 Discharging equipment

A device that transmits electric energy from a power battery to a load or grid in a conductive or wireless manner.

3.4 Charging and discharging equipment

A device that is connected between an electric vehicle or a power battery and the grid (or load) to achieve two-way energy flow.

3.5 Charging and battery swap service network

The general term for charging and swapping facilities and their management systems that provide electric vehicle users with charging and swapping services and other auxiliary services, and with information management functions.

4.1 Conductive charge

A way that uses electrical conduction to charge the battery.

4.1.1 DC charge

A method that uses conduction method to provide electrical energy to electric vehicle power battery with direct current.

4.1.2 AC charge

A method that uses conduction method to provide electrical energy to electric vehicle on-board charger with alternating current.

4.1.3 Charging mode

The way to connect electric vehicle to the grid (power supply) to supply electric vehicle.

4.2 Wireless power transfer

The AC or DC power grid (power supply) is adjusted to a calibrated voltage/current through wireless power transmission technology, so as to provide electrical energy for the power battery of electric vehicles, and it can also supply power for on-board equipment.

4.2.1 Stationary wireless power transfer

The power supply transmits wireless power to the electric vehicle, and the physical location of the power supply and the electric vehicle is stationary.

4.2.2 Dynamic wireless power transfer

The power source transmits wireless power to the electric vehicle, and the physical position of the power source or the electric vehicle is in a relative motion state.

4.3 Battery swap

A way to provide electric energy for electric vehicles by replacing the power battery.

4.3.1 Side-swapping of SBS

A swapping method that the battery box is replaced on the side of the vehicle body.

4.3.2 Bottom-swapping of SBS

A swapping method that the battery box is replaced at the bottom of the vehicle body.

4.3.3 Top-swapping of SBS

A swapping method that the battery box is replaced on the top of the vehicle body.

4.3.4 Front/rear-swapping of SBS

A swapping method that the battery box is replaced at the front and rear of the vehicle body.

4.3.5 Middle-swapping of SBS

A swapping method that the battery box is replaced in the middle of the chassis.

5.1 Off-board charger

A special device that is fixedly connected to an AC or DC power source and converts its electrical energy into DC electrical energy, and uses conduction to charge the power battery of electric vehicles.

5.2 On-board charger

A special device that is fixedly installed and operated on an electric vehicle to convert the power supply into DC electric energy and use the conduction method to charge the power battery of the electric vehicle.

5.3 AC charging spot

A dedicated power supply device that uses conduction method to provide AC power for electric vehicles with on-board chargers.

5.4 AC&DC integrated charger

An off-board charging equipment with both AC charging and DC charging functions for electric vehicles.

5.5 Mobile charging equipment

A device that is non-fixed installed to provide electrical energy for electric vehicles.

5.6 Multiple interface charging equipment

A charging device has multiple charging ports, which can charge multiple electric vehicles simultaneously or in sequence.

5.7 Group control charge

The function of dynamically distributing the output power of multiple charging interfaces according to the charging demand and system load status.

5.8 High power charge

A charging method that the maximum output current of a single interface exceeds 250A.

5.9 Constant power charge

A state that the output power of the charger is maintained at a constant value.

5.10 Connection set for charging

When charging an electric vehicle, the components that connect the electric vehicle and the electric vehicle power supply equipment, in addition to the cable, may also include the power supply interface, the vehicle interface, the control protection device on the cable, and the cap.

5.11 Automated connection coupler

A device that automatically realizes the electrical and physical connection between the charging equipment and the electric vehicle, including the active end and the passive end.

5.12 Top contact charging system

The charging system that the automated connection coupler is located on the top of the electric vehicle to provide electricity for the electric vehicle.

5.12.1 Off-board pantograph

An automated connection device that is installed on a dedicated bracket or building, and is connected to the ACD counterpart installed on the top of the vehicle by pressing down to realize charging.

5.12.2 Counterpart of off-board pantograph

An ACD counterpart that is installed on the top of the vehicle, the off-board pantograph is connected to it by pressing down to realize charging.

5.12.3 On-board pantograph

An automated connection device that is installed on the top of the vehicle, and connected to the passive end installed on a dedicated bracket or building to achieve charging by lifting method.

6.1 Magnetic field wireless power transfer; MF-WPT

A charging method that uses a magnetic field as a medium to transfer wireless power from a power supply to an electric vehicle through a magnetic coupling method.

6.2 Off-board supply equipment

A collective term for ground-side equipment of electric vehicle wireless power transfers.

6.2.1 Primary device

The energy transmitter, a device that is coupled with the secondary device to convert electrical energy into an alternating electromagnetic field and emit it out.

6.2.2 Off-board power components

High frequency power conversion units that load the required AC excitation to the primary device.

6.3 On-board supply circuit

A general term for on-board side equipment of electric vehicle wireless power transfer.

6.3.1 Secondary device

A receiving end of energy, a device that is coupled with the primary device to receive the alternating electromagnetic field and convert it into electrical energy.

6.3.2 On-board power components

Convert the electrical energy received by the secondary device into direct current through a power converter and supply it to electric vehicles.

6.3.3 Power pick-up controller; PPC

The power control unit of on-board supply circuit of electric vehicle wireless power transfer, which rectifies the high-frequency AC output from the secondary side, outputs DC that meets the requirements of the electric vehicle's on-board power battery, and completes the control of the electric vehicle wireless charging process according to the control instructions of vehicle BMS.

6.3.4 In-vehicle unit; IVU

in-vehicle unit; IVU Vehicle-side communication controller for electric vehicle wireless power transfer, which communicates with CSU to assist in the control of the charging process.

6.4 Wireless charging spot

A collective term for ground facilities that provide wireless charging services for an electric vehicle.

6.5 Ground clearance

The distance between the lower surface of the secondary device and the ground.

6.6 Mechanical air gap

The shortest distance between the upper surface of the primary device and the lower surface of the secondary device.

6.7 Operational air gap

The distance between the upper surface of the magnetic field transmitting coil of the primary device and the lower surface of the magnetic field receiving coil of the secondary device.

7.1 Power-supply system

A system composed of electrical equipment and power distribution lines that provide power to charging stations.

7.2 Charging system

A system composed of all charging equipment, cables and related auxiliary equipment in the charging station.

7.3 Supervisor and control system

A system that uses information, network and communication technologies to monitor, control and manage the operating status and environment of the equipment in the charging station.

8.1 Battery swap system

A system composed of mechanical equipment and electrical equipment to realize the swap of electric vehicle power batteries.

8.1.1 Swappable battery system; SBS

A device composed of a number of single batteries or power battery modules, cabinets, battery information collection units and related electrical and mechanical accessories, etc.

8.1.2 SBS coupler

A special electrical connection device for realizing conductive connection between battery system and electric vehicle, battery system and charging rack.

8.1.3 SBS lock mechanism

Mechanical and electrical mechanisms that fix the battery system on the battery system rack or electric vehicle.

8.1.4 SBS charging rack

The battery system carrying equipment composed of mechanical, electrical and other devices used to charge the battery system.

8.1.5 SBS storage rack

A device that is used to centrally carry the battery system.

8.1.6 SBS charger

Special charging equipment for charging the power battery system in the battery swap station.

8.1.7 SBS swap equipment

Special equipment for unloading, handling and loading the battery system.

8.1.8 SBS transfer equipment

Special equipment for moving the battery system to the specified position.

8.1.9 Vehicle guiding system

A system that guides the electric vehicle to a specified position for battery system swap.

8.2 SBS swap time

The time required for the electric vehicle to complete the swap of the battery system after it is in place (the electric vehicle itself has driving conditions).

9.1 EV driver

Electric vehicle user who replenishes energy for electric vehicles through charging and swap facilities.

9.2 Charging and battery swap service

The service provided by operator to electric vehicle driver, including the entire process of identity authentication, charging and swap, payment and settlement, etc.

9.3 Charging and battery swap service operator

A provider of charging and swap services for electric vehicle driver.

9.3.1 Charging and battery swap service platform operator

A provider of services such as operation monitoring, operation management, business services, information services and other services that provide charging and swap services through the network platform.

9.3.2 Charging and battery swap infrastructure operator

The main unit of operation, maintenance and service of electric vehicle charging and swap facilities.

9.4 Charging and battery swap operation and service system

A system that realizes business services, dispatch management, operation monitoring, data collection, statistical analysis, and operation decision-making related to the charging and swap of electric vehicles, so as to provide information services for connected electric vehicle users.

9.5 Charging and battery swap service roaming

The process in which one operator provides charging and swap services to registered users of another operator.

9.6 Third-party services and management platform

An independent operating platform for information exchange with the electric vehicle charging and swap service platform.