Sound management system of new energy electric vehicle

Abstract

The invention discloses a sound management system for a new energy electric vehicle, and the system comprises an entertainment sound module which is used for receiving six paths of balanced audio signals; the active sound production module is used for reading vehicle data information through the CAN transceiver chip; the active noise reduction module is used for receiving an error microphone signal arranged on a vehicle roof or a preset position and an acceleration sensor signal arranged on a vehicle chassis suspension; the sound active control module is used for tuning the six paths of balanced audio signals to obtain entertainment audio, processing vehicle data information to synthesize engine order sound, and performing noise reduction processing on acceleration sensor signals of error microphone signals by using a filtering reference LMS algorithm to obtain secondary signals; and outputs the entertainment audio, the engine order sound, and the secondary signal to the speaker system, respectively. The system provides a quieter and more comfortable in-vehicle space, and the comfort degree and satisfaction degree of a driver and passengers are improved.

Description

technical field [0001] The invention relates to the technical field of new energy electric vehicles, in particular to a new energy electric vehicle sound management system integrating entertainment sound, active sound generation and active noise reduction. Background technique [0002] At present, new energy electric vehicles have formed a trend. Since the traditional fuel engine is converted into a motor, the car reduces the sound of the engine. Although the vehicle becomes quieter, it also reduces the driver's fun during driving; Moreover, electric vehicles will generate some uncomfortable noises due to the operation of the motor during driving. [0003] At present, the research on active sound technology is becoming more and more mature, and it is applied to new energy electric vehicles. Through the speakers of the in-vehicle entertainment system, the sound waves of the engine during the driving process of the fuel vehicle are simulated, giving the driver the same sense o...

AI Technical Summary

Problems solved by technology

[0005] This application provides a sound management system for new energy electric vehicles to solve the problem that the existing sound management methods only satisfy one of the "sporty driving pleasure" or "extreme quiet experience" of the passengers in the car, and do not take care of the time Technical Issues of Changing Interior Acoustic Requirements

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