New Energy Vehicle Motor and Controller Testing

In recent years, new energy vehicles, such as pure electric vehicles and hybrid vehicles, have become a hot trend in the development of the world's automobile market. Pure electric vehicles are especially the main route of new energy vehicles, and their main components: power battery, electric motor and controller, etc., have been developed rapidly. New energy vehicles are characterised by dual-quadrant operating mode, power battery power supply, high power demand, etc., so the test methods for electric motors and controllers are quite different compared with those for ordinary motors.

Xuan'an Technology is committed to providing test solutions for the new energy industry, and has designed the HY-LV123 series of high-voltage ripple test power supplies for new energy vehicles to meet the test standards for new energy vehicles' high-voltage components and systems - LV123, VW80303, VW80300, ISO21498-2. HY-LV123 series new energy vehicle high-voltage ripple test power supply with DC output power of up to 500kW per unit shows great advantages in new energy vehicle motor and controller testing.

New Energy Vehicle System Structure

        In pure electric vehicles, high voltage DC power is provided by the power battery, and the motor is driven by the controller to generate power.

Test Requirements

        The test standard of motors and controllers for new energy vehicles follows the national standard GB-T18488 Motors and Controllers for Electric Vehicles.

Test items: general performance, environmental test, temperature rise test, motor torque characteristics and efficiency, regenerative energy feedback characteristics and other tests.

● Main test contents: no-load test, load efficiency test, maximum working speed, overspeed test, motor controller protection test, blocking test, motor temperature, motor temperature rise, overload capacity test, etc.

        At present, there are two common motor test systems:

1, dynamometer system; the system includes the front section of the power supply test DC power supply (battery simulator), dynamometer, frequency converter, test the required instrumentation and so on.

2, motor to drag test system; the system includes the front section of the power supply test DC power supply (battery simulator), accompanied by the test motor electronic control, test the required instruments and so on. The motor controller power supply part of the test device can be used in the form of dual-quadrant DC power supply or DC power supply plus DC load.

Xuan'an technology power supply new energy vehicle test solution advantages are as follows:

1, HY-LV123 series new energy vehicle high-voltage ripple test power supply has high reliability and stability and conversion efficiency, has obvious advantages in product stability and reliability.

2, the power supply should have a high output accuracy, HY-LV123 series of new energy vehicle high-voltage ripple test power supply maximum voltage accuracy of 0.05% +30mV, can easily meet the accuracy of the test system to be