Testing and Verification Methods and Steps for Automotive IGBT Modules

With the rapid development of electric vehicles, the reliability and performance testing and verification of automotive IGBT (Insulated Gate Bipolar Transistor) modules, as one of the core components of electric vehicles, have become particularly important. This article will introduce the testing and verification methods and steps of automotive IGBT modules to ensure their stability and safety in practical applications.

The automotive IGBT module is an important component used to control electric motors in electric vehicles. Its main function is to convert electrical energy into mechanical energy and control the acceleration and braking processes of electric vehicles. To ensure the normal operation of electric vehicles, the automotive IGBT module needs to undergo strict testing and verification.

Temperature testing

Temperature is one of the important factors affecting the performance and lifespan of IGBT modules. During the testing process, it is necessary to conduct high and low temperature tests on the IGBT module to evaluate its performance and reliability under different temperature conditions. High temperature testing can simulate the working state of IGBT modules under long-term high load operation, while low temperature testing can evaluate their working ability in extremely cold environments.

Electrical performance testing

Electrical performance testing is a key indicator for evaluating IGBT modules, including conduction voltage drop, cut-off voltage drop, switching speed, switching loss, etc. These indicators directly affect the efficiency and energy consumption of IGBT modules. Through electrical performance testing, the performance of IGBT modules under different working conditions and their stability under high voltage and high current can be verified.

Fault protection function test

The IGBT module needs to have fault protection function in practical applications to prevent electric vehicles from malfunctioning. These functions include overcurrent protection, over temperature protection, over voltage protection, etc. During the testing process, it is necessary to simulate various fault situations to ensure that the IGBT module can respond promptly and effectively and provide protection to avoid further damage.

Reliability testing

Reliability testing is an important means of evaluating the lifespan and stability of IGBT modules. Through long-term high load operation testing, the working status of IGBT modules in actual use can be simulated, and their lifespan and reliability can be evaluated. In addition, vibration testing, impact testing, etc. can also be carried out to verify the tolerance of IGBT modules in harsh environments.

Other tests

In addition to the main tests mentioned above, other tests can also be conducted, such as EMC (electromagnetic compatibility) testing, penetration testing, etc. EMC testing can evaluate the anti-interference ability of IGBT modules against electromagnetic interference to ensure that they do not interfere with other electronic devices. Penetration testing can evaluate the security of IGBT modules to prevent malicious attacks and data leaks.

The testing and verification of the automotive IGBT module is an important step to ensure its normal operation in electric vehicles. Through temperature testing, electrical performance testing, fault protection function testing, reliability testing, and other tests, the performance and reliability of IGBT modules can be comprehensively evaluated. These tests can help manufacturers and engineers identify potential issues and make improvements during the design and production stages, thereby improving the quality and reliability of automotive IGBT modules.

Chuangxin Testing always adheres to the principle of "professionalism, authority, efficiency, and innovation", and has purchased international advanced testing equipment with a heavy investment. The testing strictly follows international testing standards and methods, and is recognized by the China National Accreditation Service (CNAS) and the Guangdong Provincial Administration for Market Regulation (CMA). The testing reports issued by Chuangxin Testing have international mutual recognition effect, and can be recognized by 70 laboratory accreditation institutions in 58 countries around the world. Welcome to call, we will be happy to serve you!