Electric Vehicle Slow and Fast Charging Electrical Safety Test Equipment

Equipment Overview

This comprehensive electrical safety testing system for whole electric vehicle includes following test contents:

1. Vehicle test

2. Components test

3. Potential equalization

4. Power battery REESS

Vehicle test:

1. Fast charging port: DC withstand voltage, insulation resistance, DC grounding (potential equalization), fast charging function, whole vehicle insulation resistance, insulation test verification

2. Slow charging port: AC withstand voltage, insulation resistance, AC grounding, leakage current, slow charging function

Components test:
AC withstand voltage, insulation resistance

Potential equalization:

1. The resistance between the negative grounding point of the battery and the PEU shell

2. The resistance between the negative ground point of the battery and the housing of the drive motor

3. The resistance between the battery negative ground point and the charger shell

4. The resistance between the negative ground point of the battery and the PTC

5. The resistance between the negative grounding point of the battery and the air-conditioning compressor housing

6. The resistance between the battery negative grounding point and the steering motor housing

7. The resistance between the negative ground point of the battery and the air pump casing

8. The resistance between the battery negative ground point and the fastening screw of the battery cover

Power battery PEESS:
By measuring the voltage value, the standard resistance is known, and the battery pack insulation is calculated according to the GT/18384.1-2015 formula.
The known standard tester for testing is built in the test system, and the test wiring changes during the whole test process are inside the test system, and the automatic switching is completed without manual wiring changes.

Technical Parameters

Questions & Answers

Q: What is for vehicle test unit:

A: The whole vehicle test is mainly through the slow-charge charging gun and the fast-charge charging gun to the slow-charge charging socket, fast-charge charging socket, and the connected vehicle charger, power battery and other parts of the interface safety test, the main test items are available DC withstand voltage, insulation resistance, ground resistance, leakage current (slow charging port); the main purpose is to detect the safety performance of the charging socket and the interface of the part connected to it; the vehicle needs to be powered off during the test to ensure that all power and electronics on the vehicle The switch is in an inactive state.

1. Slow charging function detection

The slow charge function detection is to detect the slow charging performance of new energy vehicles. The tester charges the new energy vehicles through the slow charge charging interface to detect the charging status of the vehicle, including connection confirmation during AC charging, charging ready, starting and charging Phase, end of normal charging, PWM duty cycle change and current testing.

According to the function of confirming the charging connection, the security checker also adds the function of confirming the connection between the charging gun and the charging socket of the high-voltage test item. When the charging gun is plugged into the car test socket, the security checker will first confirm whether the connection is normal. High pressure detection.

Upper computer software test interface

2. Fast charging function test

The fast charging function test is to detect the fast charging performance of new energy vehicles. The tester charges the new energy vehicles through the fast charge charging interface to detect the charging status of the vehicle, including the self-check stage, charging ready stage, and charging stage during the DC charging process. , Normal charging ends, real-time detection of charging parameters (including voltage, current, charge capacity, SOC, battery temperature changes, etc.) through CAN communication and other tests.

According to the function of confirming the charging connection, the security checker also adds the function of confirming the connection between the charging gun and the charging socket of the high-voltage test item. When the charging gun is plugged into the car test socket, the security checker will first confirm whether the connection is normal. High voltage detection.

Sinuo Testing Equipment Co., Limited established in 2019, but Sinuo has rich experience in manufacturing test euipment, test system and offering overall laboratory construction of electronic and electrical products. Sinuo's main products include electrical vehicle test equipment, battery testing equipment,  electromagnetic compatibility (EMC) test system, environmental testing equipment, fire retardant test equipment, dust-proof waterproof testing equipment and electrical appliances testing equipment. Our products covering electrical vehicle, electric power, communication, electrical appliances and electronic devices industries.

Sinuo has a professional technical research and development team, which is proficient in various international standards such AS IEC, ISO, EN, VDE, BS, AS, ASTM, GB and industry standards such AS MBN LV124, VW-80000. We master physical mechanics, heat, electricity, fluid and other theoretical knowledge in the application of equipment. And continue to focus on industry standard equipment performance optimization, operation simplification and equipment stability and reliability improvement.

Sinuo has two factories in Guangzhou and Dongguan, and cooperates with many research institutions and schools. Our R&D and production capacity are in the forefront. We have authorized agents in South Korea, the United States, South Africa, Egypt, Pakistan, the Philippines and other places, we serve customers BV, CSA, Intertek, SGS, TUV and other internationally renowned testing and certification institutions, local government quality inspection departments and production factories.