Welcome to GRGTEST!
Service Hotline 400-602-0999
Our Services Environmental and Reliability Testing Reliability Test for New Energy Products
Reliability Test for New Energy Products
Guangzhou GRG Metrology & Test Co., Ltd. (GRGT) is a provider of one-stop integrated solutions to environmental adaptability, reliability and functional performance, etc. of new energy vehicles and their parts and aims to help the new energy vehicle industry deliver products and services with better quality.
Service Introduction
New energy vehicles have been plagued with a range of problems, such as thermal diffusion of battery, functional safety and other safety issues, the consistency among charging pile communication protocols, functional performance verification of motor, and controller accuracy. As a result, manufacturers are facing a variety of challenges. Specifically, the safety of batteries and how to disassemble and recycle old batteries. With the increasingly higher requirements for cell energy density, it is imperative to develop new cells. However, the corresponding testing technology and standard evaluation system are lagging behind and fail to meet the current needs for application and development. 
 

Product Scope: 

Battery and its management system: battery/module/system (battery pack), battery management system and radiator 
Micromotor: sunroof/side window/wiper 
Motor: single motor/dual motors/three motors/four motors/power assembly 
Motor controller unit (MCU): MCU for passenger vehicles/MCU for commercial vehicle 
Charging pile: AC charging pile/DC charging pile/charging coupler/charging cable 
OBC/DCDC 
 

Test Items: 

 (I) Test of the battery
Test Items Category Test Standard
Capacity and energy, tests of power and internal resistance, non-load capacity loss, storage capacity loss, energy efficiency Electrical performance GB/T 31467.1&2GB/T 31486
Room temperature power Electrical performance GB/T 31484
Vibration, mechanical shock Safety & reliability GB/T 31467.3GB/T 31486
Temperature shock, thermal-humidity cycle, seawater immersion, salt fog, low pressure, over-temperature, heating, overcharge protection, over discharge protection Safety GB/T 31467.3GB/T 31485
Standard cycle life, power battery for passenger vehicles with hybrid power, etc. Cycle life class GB/T 31484
Radiation emission - ALSE method, conducted emission - voltage method, conducted emission - voltage method Electromagnetic compatibility CISPR25GB/T 18655
Transient conduction emission Electromagnetic compatibility ISO7636-2GB/T21437.2
Magnetic field emission Electromagnetic compatibility MIL-STD-461FGJB151GJB152
Electromagnetic radiation immunity - ALSE method, high current injection method Electromagnetic compatibility ISO11452-2GB/T33014
Magnetic field immunity level Electromagnetic compatibility ISO11452-8MIL-STD-461FGJB151GJB152

 

(II) Test of motors and electronic control

Test Item Category Test Standard
Main test items of driving motors
Operating voltage range, torque - turning feature, continuous torque, continuous power, etc. Electrical performance GB/T 18488.1&2SOR
Safety ground Safety GB/T 18488.1&2SOR
High and low temperature work/storage, thermal-humidity, dustproof and waterproof Environmental adaptability GB/T 18488.1&2SOR
Scanning frequency vibration, random vibration Reliability GB/T 18488.1&2SOR
Salt fog Corrosion resistance GB/T 18488.1&2SOR
Main test items of controllers
Working voltage, overvoltage, voltage frequency change, voltage drop, etc. Electrical performance ISO 16750SOR
Thermal limit value Safety ISO 16750GB/T 2423
High and low temperature test, temperature-humidity cycling, temperature variation, thermal shock Environmental adaptability ISO 16750GB/T 2423
The communicative function of CAN bus Electrical performance SOR


(III) Testing of charging couplers and charging piles

Test Item Test Standard
DC charging pile General inspection NB/T 33001-2010
NB/T 33008.1-2013
GB/T 27930-2015
Q/GDW 1233-2014
Q/GDW 1591-2014
Q/GDW 1235-2014
GB/T 18487.1-2015
Function check
Insulation test
Charge output test
LV auxiliary power supply test
Harmonic current test
Safety requirement test
Comparability test
DC charging pile General inspection NB/T 33002-2010
NB/T 33008.2-2013
Q/GDW 1485-2014
Q/GDW 1592-2014
GB/T 18487.1-2015
Functional test
Safety protection test
Comparability test

 

(IV) High voltage wire harness test

Test type Test Item
High voltage wire harness test EMC test Shielding effectiveness test of cables and connectors
Mechanical performance test Vibration test, mechanical shock test, drop test, insertion/pulling-out force test
Electrical performance test Contact resistance, voltage drop test, temperature-rise test, withstand voltage test, insulation test
Environmental test High and low temperature, damp heat test, salt spray test, dustproof and waterproof, reagent resistance, gas corrosion test, etc.
Other tests Dimensional measurement, air tightness test, combustion test