A method of controlling a gear shifting in a neutral gear stage for shortening a gear shifting time in the neutral gear stage when performing a gear shifting of a hybrid electric vehicle is characterized in that when a shift class of the gear shifting is determined, a hybrid control unit of the vehicle determines a shift gear ratio in the N-stage in a current state by use of a transmission (TM) output speed and a transmission (TM) input speed at a class transition time point, determines an N-stage gear shifting progressing rate by use of the determined N-stage shift gear ratio, sets time points of a start and an end of the gear shifting based on the determined gear shifting progressing rate, and controls the gear shifting speed in the N-stage with reference to a gear shifting target speed and the transmission input speed in a section of the time points of the start and the end of the speed control.
Method of controlling gear shift in neutral gear stage in hybrid electric vehicle
13.07.2021
Patent
Elektronische Ressource
Englisch
METHOD OF CONTROLLING GEAR SHIFT IN NEUTRAL GEAR STAGE IN HYBRID ELECTRIC VEHICLE
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