Vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data

A technology of detection data and remote monitoring, which is applied in the direction of exhaust treatment, electronic control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, etc., and can solve problems such as vehicle exhaust emissions that cannot be well improved for drivers' driving behavior

Inactive Publication Date: 2016-05-25
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of implementation scheme cannot improve the driving behavior of drivers and the exhaust emissions of vehicles. It is still necessary for the management department to carry out regular annual inspections on the user's vehicles in order to supervise and limit the emissions of vehicles.

Method used

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  • Vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data
  • Vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data
  • Vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data

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Embodiment Construction

[0106] Below in conjunction with accompanying drawing, the specific embodiment of the invention will be further described:

[0107] A vehicle emission remote monitoring system based on OBD detection data is characterized by comprising: a data processing unit, a network communication unit, and a remote monitoring client. The connection relationship between each part is as attached figure 1 shown.

[0108] Wherein, the data processing unit includes an OBD transponder and a data processor. The OBD transponder is used to realize the communication between the data processor and the on-board OBD system; the data processor is used for parameter extraction, data flow, fault identification analysis, engine emission system analysis, and transmits the processed information to the monitoring client through the network communication unit.

[0109] OBD transponder, the interface adopts 16-pin OBD diagnostic connector conforming to SAE standard, which can communicate with vehicle engine EC...

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Abstract

The invention relates to a vehicle emission remote monitoring system based on OBD (on-board diagnostics) detection data. The system comprises a data processing unit, a network communicating unit and a remote monitoring client side. On the basis of a KWP 2000 protocol, data flow and a fault code communication algorithm of a data processing unit and an on-board ECU (electronic control unit) are completed, data flow and fault information, such as oxygen sensor signals, accelerated speed, engine loads, engine rotating speed, the fuel-injection quantity and the actual air-fuel ratio affecting an exhaust emission system are extracted, abnormality of the data flow and the system fault content are analyzed, related information is transmitted to the remote monitoring client side with a wireless communication technology, then the working state of a corresponding system part is recognized and diagnosed, and alarm information is sent to an on-board terminal according to the abnormal emission condition, so that vehicle traveling parameters are remotely monitored, and information is fed back.

Description

technical field [0001] The invention belongs to the field of vehicle fault detection and maintenance, and relates to a method of using technologies such as vehicle fault detection, remote data transmission, and communication system control to perform remote real-time parameter detection and fault information detection for motor vehicle exhaust emissions and vehicle fault information, thereby timely Solve vehicle system failures, manage and standardize the driving behavior of drivers, and reduce vehicle exhaust emissions. Background technique [0002] The earliest on-board diagnostic system OBD-I was born in the United States in the 1980s. This system cannot detect engine system component failures, and has not established standardized fault codes, communication protocols, and diagnostic modes. Therefore, the OBD-11 system appeared in 1994. This system is mainly used to detect emission problems. When the vehicle exhaust pollutants exceed the set limit, the fault indicator ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N11/00
CPCF01N11/00F01N2550/02F01N2900/16Y02T10/40
Inventor 张利国闫旭普孟贝
Owner BEIJING UNIV OF TECH
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