Automobile accelerator characteristic design method and system and storage medium

Abstract

The invention discloses an automobile accelerator characteristic design method and system and a storage medium. The method comprises the following steps that a current accelerator opening degree of anautomobile and a corresponding current automobile acceleration are obtained, and an accelerator opening degree-acceleration relation is established; an acceleration-traction force relation is established according to the current automobile acceleration, and an accelerator opening degree-traction force relation is established according to the acceleration-traction force relation and the accelerator opening degree-acceleration relation; a traction force-rotating speed torque relation between current automobile traction force and engine rotating speed and the engine torque is established; and according to the accelerator opening degree-acceleration relation, the acceleration-traction force relation and the traction force-rotating speed torque relation, a relation between the engine rotatingspeed and the engine torque is obtained when the acceleration before and after automobile gear shifting is not changed. The automobile accelerator characteristics are calculated and analyzed to obtainthe relation between the engine rotating speed and the torque when the acceleration before and after automobile gear shifting is not changed, and the automobile driving quality can be improved conveniently.

Description

technical field [0001] The invention relates to the technical field of automobile driving, in particular to a method, system and storage medium for designing automobile throttle characteristics. Background technique [0002] Automobile throttle characteristics refer to the engine torque output characteristics at a certain vehicle speed, at a certain throttle opening, at the current engine speed, that is, at a certain vehicle speed, at different throttle openings, the corresponding curve relationship between engine speed and torque. The power of the vehicle comes from the engine torque, so the throttle characteristics directly affect the acceleration of the vehicle, affect the dynamic performance, and thus affect the driving quality. At present, for manual or automatic transmission vehicles equipped with stepped transmissions on the market, before and after shifting, due to the change of the gear position, the vehicle will have a sense of impact and the driving quality is poo...

AI Technical Summary

Problems solved by technology

The power of the vehicle comes from the engine torque, so the throttle characteristics directly affect the acceleration of the vehicle, affect the dynamic performance, and thus affect the driving quality

At present, for manual or automatic transmission vehicles equipped with stepped transmissions on the market, before and after shifting, due to the change of the gear position, the vehicle will have a sense of impact and the driving quality is poor. The reason is that the acceleration of the vehicle occurs. Larger changes, the changes in acceleration before and after shifting are not considered in the design of throttle characteristics

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