The invention relates to a sound simulation method for a driving motor, which comprises the following steps: acquiring the running state of a vehicle in real time, including the current speed of the vehicle and the rotating speed of the driving motor; a plurality of harmonic currents are actively injected into a control signal of the motor according to the running state of the vehicle; the harmonic current flows through a stator winding of the driving motor and generates an alternating magnetic field in an air gap between a stator and a rotor, the alternating magnetic field generates alternating electromagnetic force, the alternating electromagnetic force acts on a stator and a shell of the driving motor to generate low-frequency vibration, and then sound is radiated; the low-frequency vibration made sound is changed by changing the multiple harmonic currents, so that modulation sound is obtained through modulation, and the modulation sound is used for simulating sound waves made by a fuel engine. Compared with the prior art, the driving motor is made to emit low-frequency modulation sound, so that sound of a fuel engine is simulated, linkage of back pushing feeling and sound waves is achieved, and the driving feeling of a new energy automobile is improved acoustically.
本发明涉及一种用于驱动电机的声浪模拟方法,包括以下步骤:实时获取车辆的运行状态,包括车辆的当前车速和驱动电机的转速;根据车辆的运行状态在电机的控制信号上主动注入多个谐波电流;谐波电流流经驱动电机的定子绕组并在定转子气隙中产生交变磁场,交变磁场产生交变电磁力,作用于驱动电机的定子和机壳产生低频振动,进而辐射出声音;通过改变多个谐波电流对低频振动发出声音的进行改变,从而调制得到调制音,该调制音用于模拟燃油发动机发出的声浪。与现有技术相比,本发明,使得驱动电机自身发出低频调制音,从而模拟燃油发动机的声音,实现了推背感与声浪的联动,从听觉上改善了新能源汽车驾驶的感受。
Sound wave simulation method for driving motor
一种用于驱动电机的声浪模拟方法
2022-06-28
Patent
Electronic Resource
Chinese
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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