What are the gearshift signals for the full hydraulic transmission, and what is the valve body?
The control hydraulic automatic control system of hydraulic mechanical transmission automatic transmission is usually composed of oil supply, manual block selection, parameter adjustment, shift time control and shift quality control. The oil supply section adjusts the output hydraulic pressure of the oil pump to the required value according to the opening of the throttle valve and the change of the position of the selector rod to form a steady working hydraulic pressure. In the hydraulic controlled hydraulic automatic transmission, parameter adjustment mainly consists of a solar term door pressure regulating valve (referred to as solar term valve) and speed control pressure regulating valve (also called the governor). The throttle pressure regulating valve enables the output hydraulic pressure to reflect the opening of the throttle valve; the speed control regulating valve makes the output hydraulic pressure reflect the speed of the valve. The shift time control part is used for converting the oil circuit leading to each shift actuating mechanism (clutch and brake) so as to realize shift control. The locking signal valve is controlled by an electromagnetic valve so that the locking clutch in the torque converter is joined and separated in a timely manner. The role of shift quality control is to make the shift process more smooth and gentle.
Automatic transmission valve assembly (circuit board) working principle of automatic transmission according to the load of the engine and vehicle speed automatic transform transmission ratio, vehicle power and fuel economy is good, and reduce engine emissions. The automatic transmission is easy to operate, and can greatly improve the safety and reliability of the vehicle when the vehicle is crowded.Electronic control automatic transmission is usually composed of hydraulic torque converter, planetary gear transmission system, shift actuator, hydraulic control system, electronic control system of five parts.
