Steering wheel key function learning method and system as well as corresponding vehicular information system

Abstract

The invention relates to a steering wheel key function learning method which comprises the following steps: S1, determining pull-up resistors matched with the steering wheel key resistors; S2, sampling the sample voltages of different key resistors of the steering wheel; and S3, setting corresponding functions on the steering wheel keys according to the sampled voltages, wherein the step S1 comprises the following steps: S11, sequentially acquiring the sampled voltages of the keys of the steering wheel when different pull-up resistors are used to obtain the acquisition result; and S12, determining the pull-up resistors matched with the steering wheel key resistors according to the acquisition result. The invention also relates to a steering wheel key function learning system and a corresponding vehicular information system. Through the invention, the pull-up resistors can be automatically adjusted according to the steering wheel key resistors of different automobile types, and the shortcoming that good key function setting cannot be realized by the existing steering wheel key function learning method for the steering wheel keys of different automobile types due to relatively largedifferences in the steering key resistors among different automobile types is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicles, and more specifically relates to a steering wheel button function learning system applicable to different vehicle models. Background technique [0002] At present, the domestic car modification market has a very broad prospect. After the original car leaves the factory, it usually comes with a simple car audio system. Some buttons that users often use, such as mute and CD player, will have corresponding function shortcut keys on the steering wheel. It is convenient for users to operate without affecting their normal driving. However, today's simple car audio system can no longer meet the market's demand for car systems. People hope that their car audio information systems can have high-tech functions such as GPS navigation and Bluetooth; thus, the car's own car audio system needs to be replaced. For vehicle information system. After replacing the car audio system with the car information syste...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that, aiming at the defect that the steering wheel button function learning system in the prior art cannot perform good button function setting for the steering wheel buttons of different models, it provides a steering wheel button resistor that can be used for different models. Steering wheel button function learning method and system with pull resistor adjustment and corresponding vehicle information system

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