An overview of the development process of an ECU product. The current ECU development process not only follows the V-shaped process macroscopically, but also satisfies the V-shaped process microscopically. That is, each development process includes not only the development of functions, but also the testing of corresponding functions. . Thanks to the efficient product development process and precise development and testing tools, the development cycle of automotive electronic products is shortening year by year, but the quality requirements of automotive electronic products are gradually increasing.