Device and method for controlling quality of sounds generated during vehicle door closing

Abstract

The invention provides a device and method for controlling the quality of sounds generated during vehicle door closing and belongs to the technical field of automobiles. The device and method for controlling the quality of the sounds generated during vehicle door closing can improve the quality of the sounds generated during vehicle door closing. The device for controlling the quality of the sounds generated during vehicle door closing comprises a microprocessor, a vehicle control unit, a vehicle body controller, an angular acceleration sensor, an angle sensor and a noise detection unit, wherein the vehicle control unit, the vehicle body controller, the angular acceleration sensor, the angle sensor and the noise detection unit are all connected with the microprocessor, the output end of the microprocessor is connected with a door closing force reducing device, and the microprocessor is connected with at least one audio loudspeaker through a driving circuit. The method for controlling the quality of the sounds generated during vehicle door closing comprises the steps that (A) whether the angle of a vehicle door is zero is judged and whether the speed of a vehicle is zero is further judged; (B) an angular acceleration value of the vehicle door is judged when the angle of the vehicle door is not zero and the speed of the vehicle is zero, and the angular acceleration of the vehicle door is reduced when the angular acceleration value of the vehicle door is judged to be larger than a set value of a current vehicle door opening angle; (C) noise signals are collected when the angle of the vehicle door is not zero, and a voice frequency neutralizing signal is generated under control and given out at the moment when the vehicle door is closed. The device and method can improve the quality of the sounds generated during vehicle door closing.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a vehicle door closing sound quality control device and a method thereof. Background technique [0002] The vibration, noise and comfort of automobiles are increasingly valued by consumers and OEMs, that is, the characteristics of automobile vibration, noise and comfort are referred to as NVH characteristics, and NVH characteristics are suitable for research on improving the ride comfort of existing models. The quality of door closing sound is people's first impression of the car's NVH performance. People can make a preliminary judgment on the quality of the car through the quality of door closing sound. The importance of door closing sound quality is self-evident. Different people have different closing strengths. When the closing strength is high, the impact sound of the door, door lock, and door frame is loud, which makes the occupants feel uncomfortable and the sound qualit...

AI Technical Summary

Problems solved by technology

However, the device can only be reassembled after detecting unqualified vehicle door sound, but cannot improve and control the quality of the closing sound of the vehicle door itself

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