Cogging Torque Test System For New Energy Vehicles

Cogging torque test system for new energy vehicles

Introduction:

Most of the new energy vehicles use permanent magnet synchronous motors as the driving source. The cogging torque will cause the motor to produce vibration and noise, and the rotation speed will fluctuate, which makes the motor unable to run smoothly and affects the performance of the motor. In a variable speed drive, when the torque ripple frequency is consistent with the mechanical resonance frequency of the stator or rotor, the vibration and noise generated by the cogging torque will be amplified. The existence of cogging torque also affects the low-speed performance and high-precision positioning of the motor in the speed control system. The test of cogging torque is clearly defined in the national standard GBT/30549-2014, and the cogging is tested by the bench. Torque test is used to test and verify the characteristics of the motor.

Guideline:

• GB 50150 Electrical equipment installation engineering electrical equipment handover test standard
• GB/T 50055-93 Code for Power Distribution Design of General Electric Equipment
• Machinery manufacturing system according to GB9061-85
• Electrical system according to GB5226-85
• GBT 30549-2014 General technical conditions for permanent magnet AC servo motors
• GB 755-2008 Rotating electric machine rating and performance

Characteristic curve

Seelong Intelligent Technology (Luoyang) Co., Ltd. is located in Luoyang, the city of peonies. It is a high-tech enterprise integrating equipment measurement, control, design, manufacturing and sales services for power engineering systems of automobiles (including passenger cars and commercial vehicles), agricultural vehicles, engineering vehicles, etc.

Seelong specializes in the research and development, production, and service of testing equipment for new energy motors, hybrid power systems, engines, transmissions, and more. Our main products include electric dynamometers, measurement and control systems, DC power supplies, and working condition guarantee systems. Seelong has a complete sales and service system, adhering to the business philosophy of providing fine quality services for survival and keeping on renovation for development, and providing users with various types of power engineering measurement and control solutions in various fields.

While valuing its own technological breakthroughs and development, Seelong has established long-term and in-depth cooperative relationships with multiple domestic research institutions. It has also passed the EU CE certification, ISO9001 quality management system certification, ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, obtained the high-tech enterprise certificate, AAA enterprise certification, and was approved as the Luoyang Enterprise R&D Center. It has obtained more than 20 invention patents and utility model patents and five software copyrights. It has provided professional equipment and services to more than 100 users at home and abroad. The company has won the trust of domestic and foreign customers with its cost-effective products and high-quality services, and has established a long-term win-win strategic partnership.

The company has always adhered to the business philosophy of "taking technological innovation as its mission and quality service as its purpose", constantly surpassing the advanced level in the same industry, integrating into the world, measuring and controlling the future, and creating high-quality products. The company is committed to providing customers with high-intelligence, high-precision, high-speed, high-reliability, and high-value-added products and services.

All employees of Seelong Intelligent Technology (Luoyang) Co., Ltd. warmly welcome sincere cooperation from domestic and foreign customers, and work together for the future and common development.