transmission oil temp gauge

• 2022-03-01

There are four common types of automotive automatic transmission: hydraulic automatic transmission (at), mechanical continuously variable transmission (CVT), electronically controlled mechanical automatic transmission (AMT) and dual clutch transmission (DCT). At present, at is widely used in cars, and at has almost become synonymous with automatic transmission.

At is composed of hydraulic torque converter, planetary gear and hydraulic control system, which can achieve variable speed and torque through hydraulic transmission and gear combination. Among them, the hydraulic torque converter is the most important component of at. It is composed of pump wheel, turbine, guide wheel and other components, and has the function of transmitting torque and clutch.

If the oil temperature is too high, stop driving immediately. If the transmission oil temperature is too high, you need to check whether the water temperature is normal. If the water temperature is not high, idle in place for a while, and the water temperature will drop. You can continue driving after reaching the normal temperature. If the water temperature is too high at the same time, check the water pump, thermostat, fan and other places.

Generally speaking, the transmission oil temperature will not exceed 120 °, and 80 ° or 90 ° is the best. If it is higher than this temperature for a long time, it will accelerate the attenuation of the composition and serviceability of the transmission oil.Principle of gearbox: manual gearbox is mainly composed of gears and shafts, which produce speed and torque through different gear combinations; The automatic transmission at is composed of hydraulic torque converter, planetary gear and hydraulic control system, which achieves speed change and torque transformation through hydraulic transmission and gear combination.

Working principle of manual transmission, in which the hydraulic torque converter is the most characteristic component of at. It is composed of pump wheel, turbine, guide wheel and other components, which directly input the engine power, transmit torque and clutch function. The pump wheel and turbine are a pair of working combinations. They are like two fans placed opposite. The wind force blown by one active fan will drive the blades of the other passive fan to rotate, and the flowing air wind force has become the medium of kinetic energy transmission.If liquid is used to replace air as the medium to transfer kinetic energy, the pump wheel will drive the turbine to rotate through the liquid, and then a guide wheel is added between the pump wheel and the turbine to improve the transmission efficiency of liquid. Due to the automatic transmission of hydraulic torque converter, the torque range is not large enough and the efficiency is low.