What is the function of the solenoid valve of the automobile transmission?

The function of the solenoid valve of the automobile transmission is to control the mechanical valve to complete the switching of the oil circuit and the pressure regulation of the oil circuit flow, which is controlled by the transmission electronic control module TCU. The transmission refers to the transmission, which is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided manner. It consists of a speed transmission mechanism and an operating mechanism.
The types of transmissions are: 1. According to the change of the transmission ratio, it can be divided into: stepped transmission, stepless transmission, and integrated transmission; 2. According to the operation method, it can be divided into: forced operation transmission, automatic operation transmission, and semi-automatic operation.