Research on the Change of Mind Control during Gearshift in Hybrid System

This paper initially delineates the control process of driver-initiated gear changes. The gear-shifting point control module computes the new target gear based on the current updated driving state, and the gear-shifting point decision module assesses the rationality of the new target gear and conveys it to the gear-shifting timing control module. The gear-shifting timing control module selects the reasonable new stage in accordance with the current execution status and outputs the new target gear, coordinating the clutch control module and the brake control module to regulate the clutch engagement/disengagement and the switches of the two clutches. Altering the intention regarding gear changes encompasses gear replacement and variations in power type, which involve the necessary recalculation of the target speed based on the new target gear. Secondly, the conditions for the "change of mind" request in the Speed stage are stipulated, which is the stage where the input shaft speed is synchronized with the combined side clutch speed, and the energy condition must be fulfilled to prevent the clutch from overheating, including the calculation of the available energy of the clutch. The executable "change of mind" request. The proposed scheme eliminates the need for the clutch temperature sensor to participate in the control process, and the "change of mind" process can be accomplished by saving multiple clutch temperature sensors for the multi-clutch system. It plays a significant role in enhancing driving performance and clutch temperature control.