Reliability Test for New Energy Products

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.

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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&2、GB/T 31486、
Room temperature power	Electrical performance	GB/T 31484
Vibration, mechanical shock	Safety & reliability	GB/T 31467.3、GB/T 31486
Temperature shock, thermal-humidity cycle, seawater immersion, salt fog, low pressure, over-temperature, heating, overcharge protection, over discharge protection	Safety	GB/T 31467.3、GB/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	CISPR25，GB/T 18655
Transient conduction emission	Electromagnetic compatibility	ISO7636-2，GB/T21437.2
Magnetic field emission	Electromagnetic compatibility	MIL-STD-461F，GJB151，GJB152
Electromagnetic radiation immunity - ALSE method, high current injection method	Electromagnetic compatibility	ISO11452-2，GB/T33014
Magnetic field immunity level	Electromagnetic compatibility	ISO11452-8，MIL-STD-461F，GJB151，GJB152

(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&2、SOR
Safety ground	Safety	GB/T 18488.1&2、SOR
High and low temperature work/storage, thermal-humidity, dustproof and waterproof	Environmental adaptability	GB/T 18488.1&2、SOR
Scanning frequency vibration, random vibration	Reliability	GB/T 18488.1&2、SOR
Salt fog	Corrosion resistance	GB/T 18488.1&2、SOR
Main test items of controllers
Working voltage, overvoltage, voltage frequency change, voltage drop, etc.	Electrical performance	ISO 16750、SOR
Thermal limit value	Safety	ISO 16750、GB/T 2423
High and low temperature test, temperature-humidity cycling, temperature variation, thermal shock	Environmental adaptability	ISO 16750、GB/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