Calibration method and device of steering angle sensor

The technology of a steering angle sensor and a calibration method, which is applied in the field of information processing, can solve the problems of complex operation process and complex calibration process, and achieve the effects of simple operation process, improved accuracy and short calibration time.

Active Publication Date: 2018-07-24
北京智加智行科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] 2) The calibration process is complex and has specific requirements for the site
The operation process of the above two calibration methods is relatively complicated, and even requires a mixture of automatic driving and manual driving; in addition, there are specific requirements for driving trajectories, which are pre-set specific trajectories or straight-line trajectories

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  • Calibration method and device of steering angle sensor
  • Calibration method and device of steering angle sensor
  • Calibration method and device of steering angle sensor

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Embodiment Construction

[0040] The following description serves to disclose the invention to enable those skilled in the art to carry out the invention. The preferred embodiments described below are only examples, and those skilled in the art can conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0041] It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

[0042] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used he...

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Abstract

The invention discloses a calibration method of a steering angle sensor. The calibration method comprises the following steps that the steering angle sensor is roughly calibrated when a vehicle is ina static state; a GNSS antenna is fine calibrated when the vehicle drives; and the steering angle sensor is fine calibrated by using GNSS antenna data after fine calibration when the vehicle drives. The invention further discloses a calibration device of the steering angle sensor. The calibration device comprises a steering angle sensor rough calibration unit, a GNSS antenna calibration unit and asteering angle sensor fine calibration unit; and the steering angle sensor rough calibration unit is used for rough calibration of the steering angle sensor, the GNSS antenna calibration unit is usedfor fine calibration of the GNSS antenna, and the steering angle sensor fine calibration unit is used for fine calibration of the steering angle sensor by using the GNSS antenna data. The calibrationmethod and device of the steering angle sensor does not require a driver to strictly drive in a straight line, and the operation process is relatively simple and time is saved, and the obtained installation error of the steering angle sensor is more accurate.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a calibration method and device for a steering angle sensor. Background technique [0002] In the automatic driving system of vehicles, especially agricultural machinery, a key component is the steering angle sensor. The automatic driving system senses the state of the wheels through the steering angle sensor, and then controls the driving direction of the vehicle. However, in practice, due to the inevitable deviation in the installation process, the steering angle sensor itself has installation errors. Therefore, in order to realize high-precision automatic driving control of agricultural machinery, it is necessary to calibrate the steering angle sensor of agricultural machinery with high precision. [0003] A method for calibrating a steering angle sensor in an existing automatic driving system is: performing high-precision calibration on all angles within the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D15/02
CPCB62D15/02B62D15/021
Inventor 韩坪良刘万千郑皓郑汉彬杨文
Owner 北京智加智行科技有限公司
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