Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A wheel tachometer speed correction method and device for a container truck

A container truck, speed correction technology, applied in measurement devices, speed/acceleration/shock measurement, testing/calibration of speed/acceleration/shock measurement equipment, etc. Solve the effect of low accuracy and improve accuracy

Active Publication Date: 2021-02-26
北京主线科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a method and device for correcting the speed of the wheel speedometer of a container truck, so as to solve the problem of low accuracy of the speed correction of the wheel speedometer during the operation of the container truck

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wheel tachometer speed correction method and device for a container truck
  • A wheel tachometer speed correction method and device for a container truck
  • A wheel tachometer speed correction method and device for a container truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048]Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for thorough understanding of the application and to fully convey the scope of the application to those skilled in the art.

[0049] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

[0050] The method in the embodiment of the present invention will be described in detail below.

[0051] figure 1 Schematically shows the flow of the method for correcting the speed of the wheel tachometer of the containe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a wheel speed meter speed correction method of a container truck, and relates to the technical field of automatic driving automobiles. A global navigation satellite system receiver and an inertia measurement unit are arranged on the container truck for providing a reference basis for speed correction of a wheel speed meter. The wheel speed meter speed correction method of the container truck comprises the following steps of: reading a GNSS original measurement speed and a wheel speed meter speed, and performing speed compensation on the GNSS original measurement speed toobtain a compensated GNSS original measurement speed; performing data fusion according to the compensated GNSS original measurement speed and the wheel speed meter speed, and estimating a wheel speedmeter dynamic scale factor in real time; and correcting the wheel speed meter speed according to the wheel speed meter dynamic scale factor. According to the wheel speed meter speed correction method, the wheel speed meter dynamic scale factor change can be estimated in real time, the correction accuracy of the wheel speed meter speed in the operation process of the container truck is improved, and the technical problem that the correction accuracy of the wheel speed meter speed is low in the operation process of the container truck can be solved.

Description

technical field [0001] The invention relates to the technical field of self-driving cars, in particular to a method and device for correcting the speed of a wheel speedometer of a container truck. Background technique [0002] In recent years, the automatic driving technology of automobiles has been developed rapidly, and the navigation and positioning system has played a key role in the development of automatic driving of automobiles. The navigation and positioning system determines the position of the vehicle and makes a safe path planning based on the Global Positioning System (Global Positioning System, GPS) or the inertial measurement unit (Inertial Measurement Unit, IMU). IMU is the core component of the inertial navigation system (Inertial Navigation System, INS). Since the IMU continuously provides position information without external interference, the IMU is the focus of achieving continuous vehicle navigation and positioning. In the application of container truck...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01P21/02G01S19/52
CPCG01P21/02G01S19/52
Inventor 侯利朋王晓东张天雷安利峰
Owner 北京主线科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com