The invention discloses an electric vehicle low-speed prompt tone device frequency response test system and method, belongs to the field of vehicle electroacoustic control. The system comprises an electric vehicle low-speed prompt tone device, a microphone, a data acquisition module and an electric vehicle low-speed prompt tone device control module. The invention also provides an electric vehiclelow-speed prompt tone device frequency response test evaluation and balancing method, which focuses on test for an electroacoustic aeroacoustic transmission path from a low-speed prompt tone system to a noise measuring point, and performs equalization on a frequency response test result on the basis of the test evaluation method. Therefore, the frequency response of the low-speed prompt tone system is adjusted to a straight consistent state, influence of the frequency response of the hardware system on the low-speed prompt tone is reduced to the minimum, and the low-speed prompt tone synthesized by the system can truly reflect the frequency spectrum characteristics of the design state.
本发明公开了一种电动汽车低速提示音装置频率响应测试系统及方法,属于车辆电声控制领域,包括:电动汽车低速提示音装置、传声器、数据采集模块和电动汽车低速提示音装置控制模块。本发明提供了一种电动汽车低速提示音系统频率响应测试评价与均衡方法,重点关注了低速提示音系统到噪声测点的电声‑空气声传递路径的测试评价方法,在此基础上,针对频率响应测试结果进行均衡处理,从而将低速提示音系统的频率响应调整至平直一致的状态,从而将硬件系统频率响应对低速提示音的影响降低至最小,保证通过系统合成出的低速提示音能够真实反映设计状态频谱特征。
Electric vehicle low-speed prompt tone device frequency response test system and method
一种电动汽车低速提示音装置频率响应测试系统及方法
2021-02-02
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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