The key core components of passenger car seats include seat motors, slide rails, recliners, memory devices, etc. The car seat motor is the power source of the car electric seat, which belongs to the middle and high-end passenger car device. The seat motor is mainly a permanent magnet DC motor. The seat rail is the most important part in the seat assembly, with very high technical content and patent protection. It is not only an important functional part, but also one of the car safety parts. The seat angle adjuster is a device that realizes the supine and folding motion of the car seat back. It is used in pairs on the seat and can be locked on one side or on both sides. Seat memory has a broad market in the automotive field, and car seats are one of the important indicators to measure car performance. At present, drivers have higher and higher requirements for seat comfort and convenience, and electric seats, especially those with memory, are more and more favored by automobile consumers. Most of the early car seats were manually adjusted fore and aft positions, which was very inconvenient to operate. The presence of seat drives can automatically adjust the seat position.