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

Passive keyless entry and passive keyless start (PEPS) low-frequency calibration system and method

A calibration system and low-frequency technology, applied in the field of communication, can solve the problems such as the inability to achieve accurate conversion between the coordinate system of the three-dimensional mechanical locator and the internal coordinate system of the vehicle body, and the inability to realize the accurate positioning of the smart key, so as to improve the calibration efficiency and ensure the synchronization performance. Effect

Active Publication Date: 2012-09-26
KOSTAL SHANGHAI MANAGEMENT
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, when the PEPS low-frequency calibration system in the prior art is used to measure the field strength of the smart key, the precise conversion between the coordinate system of the three-dimensional mechanical locator and the internal coordinate system of the car body cannot be realized during the movement of the smart key. Therefore, it is impossible to realize the accurate positioning of the smart key when it is very close to the vehicle (distance less than 1cm)

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
  • Passive keyless entry and passive keyless start (PEPS) low-frequency calibration system and method
  • Passive keyless entry and passive keyless start (PEPS) low-frequency calibration system and method
  • Passive keyless entry and passive keyless start (PEPS) low-frequency calibration system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0053] refer to image 3 , which shows a schematic structural diagram of an embodiment of a PEPS low-frequency calibration system provided by the present application. The PEPS low-frequency calibration system includes a three-dimensional locator 301, a PEPS controller 302, a low-frequency signal generator 303, and a controller area network CAN communication Device 304 and industrial computer 305, wherein:

[0054] The smart key is fixed on the top of the Y axis of the three-dimensi...

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 passive keyless entry and passive keyless start (PEPS) low-frequency calibration system and a PEPS low-frequency calibration method. The system comprises a three-dimensional position finder, a PEPS controller, a low-frequency signal generator, a controller local area network (CAN) communicator and an industrial personal computer. According to the embodiment of the invention, the CAN communicator is arranged to realize unified data interface communication between the three-dimensional position finder, the PEPS controller and the industrial personal computer, so that the synchronization performance of a PEPS low-frequency calibration work flow is ensured, and PEPS low-frequency calibration efficiency is improved; moreover, the industrial personal computer is used for regulating the driving current of low-frequency antennae, so that the power of low-frequency magnetic field signals generated by a plurality of low-frequency antennae is regulated; and the industrial personal computer is used for realizing the accurate conversion of a smart key between three-dimensional position finder coordinate system-based coordinates and vehicle body coordinate system-based coordinates, so that the positioning accuracy of the PEPS low-frequency calibration system is improved, and the accurate positioning of the smart key when the smart key is extremely close to a vehicle is realized.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a PEPS low-frequency calibration system and method. Background technique [0002] Intelligent keyless entry and start system PEPS (Passive keyless entry and passive keyless start) is developed on the basis of traditional vehicle remote control devices, and is gradually developing as a new generation of technology, such as PEPS smart keys. When the driver carries the smart key and steps into the peripheral range of the vehicle set by PEPS, the system judges through identification. If it is a legally authorized smart key, PEPS generates an instruction to automatically open the door of the vehicle. When the driver enters the car with the smart key, the When in the vehicle interior range set by PEPS for the vehicle, the driver only needs to press the start button to start the vehicle. [0003] From the above working principle of PEPS, it can be seen that the pre...

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
IPC IPC(8): G01S5/04G01R33/02
Inventor 吴晓磊冯潇沈建于
Owner KOSTAL SHANGHAI MANAGEMENT
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