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

Novel ABS (anti-lock brake system) ECU (electronic control unit) diagnosis system

A diagnostic system and a new type of technology, applied in the direction of electrical testing/monitoring, etc., can solve the problems of KLINE bus feedback signal filtering, no hardware filtering function, and cannot directly control the high and low level time of the KLINE bus, so as to reduce the ECU brushing time , The effect of adjustable baud rate

Active Publication Date: 2015-03-25
WANXIANG QIANCHAO SHANGHAI AUTOMOTIVE SYST +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the current diagnostic instrument does not filter out the KLINE bus feedback signal, it can only be filtered out by software, such as the patent of publication number CN200810220151.2 "a software implementation method based on data link layer of KWP2000" and publication number CN201110156800. 9's patent "PC-side ECU debugging software based on K-line and KWP2000 protocol" is a software filtering method patent; and the patent of publication number CN200810040357.7 "Kline to RS232 circuit with anti-reverse connection function" is limited to level The conversion circuit has no hardware filtering function, nor can it directly control the high and low level time of the KLINE bus

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
  • Novel ABS (anti-lock brake system) ECU (electronic control unit) diagnosis system
  • Novel ABS (anti-lock brake system) ECU (electronic control unit) diagnosis system
  • Novel ABS (anti-lock brake system) ECU (electronic control unit) diagnosis system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] Such as figure 1 As shown, the novel ABS ECU diagnosis system of the present invention includes a KLINE to UART circuit, a TTL to UART circuit and a filter circuit; the function of the filter circuit is to filter out the sent signal fed back by the KLINE bus in the KLINE to UART circuit.

[0025] The enlarged circuit diagram of each circuit can be seen Figure 2 to Figure 6 shown. Figure 4 Among them, the Input_1A pins on the chip of the filter circuit are respectively connected with figure 2 TXD2 and KLINE to UART circuit image 3 TXD1 of TTL to UART circuit; Input_1B pin and via figure 2 The 5V RXD2 connection after the KLINE to UART circuit; the output pin Output_1 and image 3 RXD1 connection for TTL to UART circuit.

[0026] figure 2 The KLINE to UART circuit converts the KLINE signal into a 5V signal for signal transmissi...

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 relates to the field of automotive electronic technology and aims to provide a novel ABS (anti-lock brake system) ECU (electronic control unit) diagnosis system. The diagnosis system comprises a KLINE-to-UART (universal asynchronous receiver transmitter) conversion circuit and a TTL (transistor-transistor logic)-to-UART conversion circuit, wherein a filter circuit is arranged between the KLINE-to-UART conversion circuit and the TTL-to-UART conversion circuit; and a transmission signal fed back from a KLINE bus in the KLINE-to-UART conversion circuit is filtered out by the filter circuit. According to the novel ABS ECU diagnosis system, hardware filtering is additionally adopted, invalid feedback data from a bus is directly filtered out, the software filtering processing is omitted, so that the workload of software is reduced, and the system efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a novel ABS ECU diagnosis system. Background technique [0002] ABS (Antilock brake system) and ECU (Electric control unit) are important systems in automotive electronics. ABS ECU diagnostic instrument is one of the important tools for ECU and PC. It is mainly used for brushing, diagnosing, vacuuming and filling brake fluid for ABS ECU, exhausting pipelines, updating ABS control algorithm, and optimizing its working performance. Its working principle is to communicate with ABS ECU by converting the RS232 signal of the computer into a KLINE bus signal. But the current diagnostic instrument does not filter out the KLINE bus feedback signal, it can only be filtered out by software, such as the patent of publication number CN200810220151.2 "a software implementation method based on data link layer of KWP2000" and publication number CN201110156800. 9's patent "PC-sid...

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): G05B23/02
Inventor 陈得健沈俊任飞陈箭
Owner WANXIANG QIANCHAO SHANGHAI AUTOMOTIVE SYST
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