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Method for correcting abnormal work of OBD of commercial vehicle

A commercial vehicle, abnormal technology, applied in the direction of combustion engine, mechanical equipment, electrical testing/monitoring, etc., can solve the problems of vehicle feedback abnormal torque limit in cold regions, etc., to achieve protection, development and optimization, and compact structure Effect

Pending Publication Date: 2022-07-08
BAOJI HUSN ENG VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Commercial vehicle OBD: It is an on-board diagnostic system for commercial vehicles; when used in cold areas, there will be abnormal vehicle feedback and torque limit problems in cold areas

Method used

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  • Method for correcting abnormal work of OBD of commercial vehicle
  • Method for correcting abnormal work of OBD of commercial vehicle
  • Method for correcting abnormal work of OBD of commercial vehicle

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Embodiment Construction

[0045] The following will be combined with the appendix in the embodiment of the present invention Figure 1-13 , clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] The method for correcting the abnormal operation of the OBD of a commercial vehicle includes the following steps:

[0047] (like Figure 7 shown) Step S1, install the ambient temperature sensor: install the ambient temperature sensor 1 on the ambient temperature sensor bracket 1-1.

[0048] Preferably: the ambient temperature sensor 1 is an ST820JD-1-S-YC intake air temperature sensor of Wuxi Shengbang Electronics Co., L...

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Abstract

The invention provides a method for correcting abnormal work of an OBD (On-Board Diagnostic) of a commercial vehicle. The method comprises the following steps of: installing an environment temperature sensor; developing and installing an environment temperature analysis module; and judging whether normal work conditions of the OBD are met or not by an ECU (Electronic Control Unit) according to a new program and judging a control strategy. According to the invention, an environment temperature CAN analysis module is added, and the technical problem of abnormal work of OBD in a low-temperature environment is solved by correcting data and changing an application layer data program and a control strategy; real-time detection is achieved, detection is accurate, data transmission is reliable, the improvement cost is low, the structure is compact, stable and normal operation of the OBD system is guaranteed, instrument board development and optimization are omitted, and the development cost is saved; the system is short in development period, high in anti-interference capability, economical, practical and convenient to install.

Description

technical field [0001] The invention belongs to the technical field of devices used for maintenance and management of electrical general training technology, and particularly relates to a method for correcting abnormal operation of the OBD of a commercial vehicle. Background technique [0002] Commercial vehicle OBD: It is an on-board diagnostic system for commercial vehicles; when it is used in cold areas, there will be abnormal torque limit problems in the feedback of vehicles in cold areas. After measurement, it was found that the heating solenoid valve and the urea pipe heating pipe work normally; the vehicle runs normally during the day, and the vehicle will have a torque limit at night, and the reading fault data shows that the ice melting failed. After troubleshooting, it was analyzed that the reason was caused by the abnormal operation of the control strategy and OBD. Therefore, in order to correct the abnormal operation of the OBD, so that the vehicle can still wor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065Y02T10/40
Inventor 李洋吴凯凯晏强张鸿刚王文磊徐伟张阳张林涛唐晓啸
Owner BAOJI HUSN ENG VEHICLE
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