The invention discloses a motor driving system with a two-gear automatic transmission function and a gear-shifting control method. The motor driving system with the two-gear automatic transmission function comprises a single-row planet mechanism, a synchronizer of the single-row planet mechanism, a shifting fork executing mechanism of the synchronizer, a driving motor M1 of the shifting fork executing mechanism, a driving motor M2 of a sun gear central shaft and a motor controller which is used for controlling the driving motors M1 and M2. The driving motor M2 rotates to drive the shifting fork executing mechanism to move so that a shifting fork rod of the synchronizer swings from side to side; therefore, the synchronizer is respectively engaged with a gear A and a gear B by turns so as to finish gear switching. A sun gear of the single-row planet mechanism is connected with a rotating shaft of the driving motor M1; a planet frame of the single-row planet mechanism is connected with a driving axle as an output end; and through a half shaft, positive and reverse rotation moments of the driving motor M1 are transmitted to a left wheel and a right wheel. As the shifting fork executing mechanism is organically combined with other parts, the rotation speeds and torques of the driving motors M1 and M2 can be accurately controlled to realize shifting between a gear I and a gear II of a transmission without power interruption.
Motor driving system with two-gear automatic transmission function and gear-shifting control method
27.01.2016
Patent
Elektronische Ressource
Englisch
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