What’s the SH63 Transmission Gearbox?

In fact, SH63 transmission gearbox has an inner structure similar with the manual transmission gearbox, while the shifting operation was operated by hydraulic actuators. When braked and release the brake, the electrical signal is transmitted to the TCU by the brake pedal switch so to control the flow ratio of clutch, because solenoid valve controls the clutch actuator. At the same time, the Hall sensor in the shift lever sends an electric signal to the TCU, then the TCU transmits the control signal to the solenoid valve, thereby controlling the mechanical shift level to finish the shifting.

If there are errors or mistakes in shifting operations, TCU will be further to adjust and to control. What problem is most concentrated? It was hop gear. Experts explained that, this issue largely caused by shift actuator and the hydraulic power failure or due to the low computer matching adaptability between TCM and ECM.