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Method and device for controlling car audio by keys on steering wheel

A car audio and steering wheel technology, applied in the direction of sound signal devices, signal devices, vehicle parts, etc., can solve the problems of blankness, etc., and achieve the effect of enhancing comfort and safety, and humanizing the design

Inactive Publication Date: 2010-03-03
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By controlling the buttons on the steering wheel, it is still blank to perform operations on the car audio

Method used

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  • Method and device for controlling car audio by keys on steering wheel

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Embodiment Construction

[0017] As shown in the figure, the signal output terminal of the button on the car steering wheel is connected to the A / D converter, and the signal output terminal of the A / D converter is connected to the car audio controller MCU. Among them, the button on the steering wheel is a voltage-dividing electronic structure, the A / D converter uses TSC2003, and the car audio can be a radio, a radio, CD, DVD, DVD navigation or a car computer.

[0018] Press different buttons on the steering wheel to trigger different resistance values, and output different voltage signals accordingly. The voltage signals are converted into digital-to-analog conversion by the A / D converter and converted into hexadecimal codes that can be recognized by the MCU. Through the I 2 O port is transmitted to the car audio controller MCU. I of the MCU 2 The O port always detects relevant information. When it receives the hexadecimal code from the A / D converter, it recognizes it and performs corresponding operat...

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Abstract

The invention relates to a method and a device for controlling a car audio by keys on a steering wheel, which can perform operation on the car audio by controlling the keys on the steering wheel. Thetechnical scheme of the invention is as follows: the keys are arranged on the steering wheel in the method for controlling the car audio by the keys on the steering wheel. The invention is characterized in that different keys on the steering wheel are pressed, different signals are correspondingly output to a controller MCU of the car audio which identifies the signals and performs corresponding operation on the car audio.

Description

technical field [0001] The invention relates to a method and a device for controlling car audio by buttons on a car steering wheel. Background technique [0002] At present, ergonomics is fully considered in the design of automobiles. For example, in the button operation layout, some buttons are often arranged on the steering wheel in order to allow the driver to operate more conveniently. By controlling the buttons on the steering wheel, it is still blank to perform operations on the car audio. Contents of the invention [0003] The purpose of the present invention is to provide a method and device for controlling the car audio by the buttons on the steering wheel, which can perform the operation on the car audio by controlling the buttons on the steering wheel. [0004] The present invention is based on the same inventive concept and has two independent technical solutions: [0005] 1. A method for controlling car audio by buttons on the steering wheel of a car. Button...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q5/00
Inventor 陆云停
Owner CHERY AUTOMOBILE CO LTD