Engine torque transient response method and device, electronic equipment and storage medium

Abstract

The invention provides an engine torque transient response method and device, electronic equipment and a readable storage medium. The engine torque transient response method comprises the steps that a first signal value reflecting the operation working condition of an engine is obtained, the first signal value at least comprises a sensor measurement signal value and a model quantity signal value, and when the first signal value meets a first preset condition, a torque transient response mode is activated. According to the method, whether the first signal value meets the first preset condition or not is judged by obtaining the first signal value reflecting the operation working condition of the engine, if the first signal value meets the first preset condition, the torque transient response mode is activated, the purpose of the torque transient response mode is optimal, and therefore the purpose of shortening the torque transient response duration is achieved.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, in particular to an engine torque transient response method, apparatus, electronic devices and storage media. Background [0002] By effectively reducing pump air losses and improving combustion efficiency, Miller cycle engines are one of the main options for energy saving and emission reduction under increasingly stringent fuel consumption and emissions regulations. [0003] The ECU software control strategy in the related technology follows the control strategy of the traditional Otto cycle supercharged engine, and when the torque transient response is heard, the phase of the intake and exhaust target is the same as the phase selected by the steady-state working condition (that is, the engine speed and load are stable and unchanged), and the principle of selecting the phase for the steady-state condition is the optimal fuel consumption, performance and emissions, not the optimal inflation e...

AI Technical Summary

Problems solved by technology

[0004] For the supercharged engine of the Miller cycle, because the realization of the Miller cycle often requires the use of a camshaft design with a smaller intake wrap angle than the Otto cycle, and the size of the intake wrap angle has a direct impact on the charge size. Therefore, the problem of charging efficiency inherent in the Miller cycle engine is brought about. The control strategy of the traditional Otto cycle supercharged engine is used in transient conditions, which directly leads to a low boost pressure build-up rate, thereby causing torque transient response. long time problem

Images