Research on shifting process control of automatic transmission

Research on shifting process control of automatic transmission

Blog Article

Abstract The shift quality of an automatic transmission directly affects the human-perceived comfort and the durability of the automatic transmission.In general, the inconsistency caused by manufacturing errors, life-cycle changes, or other changes in hydraulic characteristics are the main reason affecting the shift quality, which should be compensated by adaptive control in the shifting process.In this paper, we lightemupsequences.com first provide an in-depth analysis of the relationship between proportional solenoid current, clutch pressure, speed and torque in the shifting process control.

Then we propose ultrastar dc hc550 two efficient adaptive control strategies for the torque phase and inertia phase, respectively.Both algorithms are tested and verified on a riot utility vehicle.The experimental results indicate that the adaptive control strategies proposed in this paper can effectively compensate the engine flare and the clutch tie-up of the torque phase, and keep the inertia phase within a proper time range.