In the last article, "How many kinds of automatic trucks are divided? Will replace manual gear? “We introduced several types of truck automatic transmissions and compared the advantages and disadvantages of several types of transmissions. I believe card members have a certain understanding of truck automatic transmissions. AMT is the main force of truck automatic transmissions. Relatively easy to control manufacturing costs and excellent performance are widely used in trucks. Today, this article will use Liberation AMT gearbox as an example to explain to you how much this AMT gearbox has and how it works to liberate your left and right hand. ◠Manually change automatic AMT gearbox more AMT (Automated Mechanical Transmission) mechanical automatic transmission belongs to a new class of automatic transmissions. The mechanical nature of the box comes from the MT manual transmission. The AMT automatic transmission is transformed on the basis of the original mechanical transmission. With the overall transmission structure unchanged, the automatic shifting system can be realized through the installation of the TCU-controlled automatic control system. Compared to the manual gearbox, the AMT gearbox has two more execution structures. One is to replace the original top cover assembly with a gear selector actuator on the basis of the manual gearbox body. The other is the manual gearbox clutch booster pump assembly also replaced by the clutch actuator. AMT Automatic Transmission Adds solenoid valve-controlled intermediate shaft brake assembly for quick shifting of the transmission. The high and low gears on the gear shift lever of the manual transmission also become solenoid valve control, and the automatic control of the auxiliary box is changed between high and low gears. The AMT gearbox eliminates the manual transmission shifter assembly and clutch line assembly. Compared with the manual transmission, the AMT automatic transmission adds a transmission TCU and five sensors on the basis of the transmission to monitor the working conditions of the transmission in real time. The five sensors have different divisions of labor: linear displacement sensor: used to monitor the height and position of the auxiliary box; output shaft speed sensor: used to monitor vehicle speed; oil temperature sensor: used to monitor transmission oil temperature; intermediate shaft speed sensor: used for monitoring Input shaft speed; air pressure sensor: used to monitor the air pressure of the automatic transmission. The TUC is equivalent to the "brain" of the gearbox, and the information of each sensor is aggregated with the generator ECU for data exchange, and an operation instruction is issued to the actuator according to the driver's driving intention. ◠The principle is very simple to simulate the old driver shifting The driver issues operating instructions through gear shift handles, accelerator pedals and other components. The transmission TCU issues commands to the AMT system components according to the current operating conditions. The solenoid valves on the executing components work according to the TCU instructions to achieve the separation of the clutches. Engage and select and shift actions. At the same time, each sensor in the system feeds back the current data to the TCU for closed-loop control. Information such as speed, gear, etc., is displayed by the meter for driver's reference to drive the vehicle. Did the card readers read a bit? It does not matter, you can think of the AMT gearbox TCU system as an "old driver". This "old driver" has rich experience and can face all kinds of working conditions calmly. Through the gearbox sensors to understand the speed change. The state of the box. The "old driver" is tireless and can do exactly what it takes to change gears. The "old driver" will help you shift gears. You only need to be responsible for the throttle and the steering wheel. As for the shifting work, the "old driver" will be given a good job. ◠Postscript: Through the introduction, I believe that the card friends have a certain understanding of the liberation AMT gearbox, many card friends for the reliability of domestic AMT some do not trust. It is understood that the largest number of liberation AMT users have traveled 640,000 kilometers, the system did not produce any problems, the sensors, the implementation of the structure from Bosch, Miba and other internationally renowned companies, so the quality can still be assured. The emergence of the AMT gearbox has reduced the driving intensity of the driver to a certain extent, and the driver will have more energy to observe the road conditions to ensure driving safety. In Europe, the penetration rate of AMT transmission has reached 70%, and China's current matching ratio should be less than 1%. With the promotion of AMT by manufacturers, the driver is getting younger and accepts new things faster. I believe in the near future. There will be more vehicles that match the AMT gearbox running across the country. In the future, the truck gearbox will be the AMT era.
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