Electric vehicle sound control device and method

A technology of sound control and electric vehicles, which is applied in the direction of sound signal devices, signal devices, vehicle components, etc., and can solve the problems of harsh warning sounds, poor recognition, and high cost
CN109131069AActive Publication Date: 2019-01-04BYD CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BYD CO LTD
Publication Date
2019-01-04

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Abstract

The embodiment of the invention provides an electric vehicle sound control device and method, belonging to the technical field of electric vehicles. The sound control device of the electric vehicle comprises a working parameter acquisition unit, which is used for acquiring a first vehicle working parameter about the electric vehicle; a sound wave sound determining unit for determining a first order sound wave sound corresponding to a first vehicle operating parameter based on a first vehicle operating parameter in conjunction with a sound wave sound library, wherein a plurality of sets of order sound mapping relationships between a plurality of vehicle operating parameters and a plurality of order sound wave sounds of a reference engine are stored in the sound wave sound library; a sound control unit for generating a target masking sound based on a first order sound wave sound and outputting the target masking sound to the vehicle to mask motor whistling noise in the vehicle, and / or generating a target warning sound based on the first order sound wave sound and outputting the target warning sound to the vehicle. The sound wave sound of a certain order can be called to improve the roaring sound of the motor inside the car, and the sound warning outside the car can also be realized.
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Description

technical field

[0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle sound control device and method. Background technique

[0002] With the country's strong support for new energy technologies, new energy vehicles have been vigorously promoted. Since pure electric vehicles are driven by motors and do not have engines, on the one hand, along with the overall improvement in the quality of new energy vehicles, the quietness of the car interior has been improved. In the car, it will greatly increase the irritability of passengers; on the other hand, since the new energy vehicle has no engine, there is no sound of intake and exhaust, and the lack of roar of the vehicle makes it difficult to be distracted by pedestrians on the road. It is perceived by the vehicle and has a greater potential safety hazard.

[0003] In view of this, there are mainly two improvement schemes for the motor whistling noise in the car provided ...

Claims

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