GB/T 4 2284.3 - 2022 is the third part of the road vehicle electric vehicle drive system standard, focusing on the environmental conditions and tests of the mechanical load of electrical and electronic equipment. The standard specifies the scope of application, specifies the test requirements and methods of equipment under mechanical load such as vibration, Impact, mechanical stress, etc., covering test parameter setting, test process and result evaluation, etc. It provides a unified standard for scientifically evaluating the mechanical tolerance performance of equipment, and guarantees the Stability and Reliability of electrical and electronic equipment of electric vehicle drive systems in complex mechanical environments.