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A method and device for identifying road surface information

A technology of maximum value and amplitude value, which is applied in the field of identifying road surface information, and can solve the problems of large anti-clamping force of the closed system and inability to identify road surface information, etc.

Active Publication Date: 2017-03-08
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot identify road surface information, and it will cause the problem that the anti-pinch force of the closing system is too large due to the increase of the anti-pinch detection threshold when the vehicle is driving on a smooth road with extremely low vibration

Method used

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  • A method and device for identifying road surface information
  • A method and device for identifying road surface information
  • A method and device for identifying road surface information

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Embodiment Construction

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0065] The embodiment of the invention discloses a method and device for identifying road surface information, which can realize the identification of road surface information.

[0066] see figure 1 , a method for identifying road surface information provided by an embodiment of the present invention includes:

[0067] S101. Obtain the initial maximum value of the motor speed change rate;

[0068] Specifically, the initial maximum value of the motor speed change ...

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Abstract

The invention discloses a method and device for identifying pavement information. An initial extremum of the change rate of the motor rotating speed is obtained; when the initial extremum is within a preset change range, the amplitude value of the change rate of the rotating speed is set as a basic amplitude value; an extremum, which approaches the initial extremum, of the change rate of the motor rotating speed is obtained; if the timing length between the initial extremum and the proximate extremum is lower than a preset threshold, accumulative assignment is carried out on the basic amplitude value within the preset change range of the proximate extremum to generate an accumulative amplitude value; and whether the accumulative amplitude value is greater than the preset threshold is determined, if yes, a pavement is determined to be bumpy. Thus, pavement information is identified.

Description

technical field [0001] The present invention relates to the technical field of road surface recognition, and more specifically, to a method and device for recognizing road surface information. Background technique [0002] With the development of automobile technology, a large number of components controlled and driven by motors are widely used to improve the comfort of vehicle operation, but at the same time, more requirements are put forward for the safety of operation. In vehicle closing parts such as doors, windows, sunroofs, etc., when an object or human body is obstructed, the motor must be able to detect and run in reverse to control the closing part to open automatically, which is also called the anti-pinch function. However, during the operation of the vehicle, rough road conditions with potholes will cause the vehicle to bump, causing the motor to generate an additional vibration when driving the closing part, which will be falsely detected as the state of the obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/048
CPCG08G1/048
Inventor 贾晟
Owner BEIJING JINGWEI HIRAIN TECH CO INC