The invention relates to the technical field of active sound production systems, and discloses an internal combustion engine automobile engine rotating speed change analysis method and an active soundproduction system. The analysis method comprises the steps of S1, obtaining a linear regression equation of the engine rotating speed and the accelerator pedal opening degree of a gear shifting pointin the transmission upshifting process; S2, obtaining a linear regression equation of the engine rotating speed and the vehicle speed under different gears; S3, obtaining a regression curve and a regression equation between the speed increment and the gear in the gear shifting process; S4, acquiring engine rotating speed and vehicle speed data under each gear, and obtaining a linear regression equation of the vehicle speed and the engine rotating speed under each gear; and S5, according to the steps S1 to S4, obtaining a rotating speed control strategy of the engine rotating speed in the D-gear accelerated driving process. An important basis is provided for a virtual engine rotating speed control strategy of the active sound production system of the electric automobile, and the active sound production system synthesizes engine sound with corresponding frequency according to the virtual engine rotating speed.
本发明涉及主动发声系统技术领域,公开了一种内燃机汽车发动机转速变化分析方法及主动发声系统;分析方法包括:S1、获取变速器升档过程换挡点发动机转速与加速踏板开度的线性回归方程;S2、获取不同挡位下发动机转速与车速的线性回归方程;S3、得到换挡过程速度增量与挡位之间的回归曲线和回归方程;S4、获取各个挡位下的发动机转速和车速数据,得到各个挡位下车速与发动机转速的线性回归方程;S5、根据步骤S1至S4,得到D挡加速行驶过程中发动机转速的转速控制策略。为电动汽车主动发声系统虚拟发动机转速控制策略提供了重要依据,主动发声系统根据虚拟发动机转速大小合成出对应频率的发动机声音。
Internal combustion engine automobile engine speed change analysis method and active sound production system
内燃机汽车发动机转速变化分析方法及主动发声系统
2020-10-09
Patent
Electronic Resource
Chinese
VIRTUAL ENGINE SPEED CONTROL METHOD, ACTIVE SOUND PRODUCTION SYSTEM, AND AUTOMOBILE
European Patent Office | 2022
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