What is the role of the car shift control machine
The main function of the vehicle shift control device is to make the automatic transmission in different gear states according to the position of the gear shift lever (such as P, R, D, etc.), and to control the automatic upshift and downshift according to the driving condition of the vehicle when the gear shift lever is in forward gear.
How the shift control works
The shift control device reduces or stops the speed of the rotating parts (such as the input shaft) inside the transmission through the operation of the driver, so that the gear making sound will not be caused by the speed difference between the internal reverse gears when changing the reverse gear. Specifically, when it is necessary to shift, the driver exerts a certain axial force on the fork shaft through the gear shift lever to overcome the pressure of the spring, extrude the self-locking steel ball from the groove of the fork shaft and push it back into the hole, and the fork shaft can slide through the steel ball and the corresponding shift element. When the fork shaft is moved to another notch and aligned with the steel ball, the steel ball is pressed into the notch again, and the transmission is just shifted into a certain working gear or into neutral .
Components of a shift control device
The core components of the shift control device include the shift lever, pull wire, gear selection and shift structure, as well as the fork and synchronizer. The gear lever is used to control the gear position, the cable is responsible for adjusting the position of the gear, selecting the gear to hang or change the gear position, and the fork and synchronizer ensure the accurate combination and separation of the gear of each gear .
Shifting control device maintenance and troubleshooting methods
In order to ensure the reliable operation of the transmission, the shift control device needs to be checked and maintained regularly. Common maintenance items include checking the smooth operation of the gear lever, the wear of the fork and synchronizer, and the connection status of the pull and selector mechanism. If the operation is not smooth or the sound is abnormal, the fork may be worn, the cable is loose, or the gear selection mechanism is faulty. You need to repair or replace related parts .
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