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A kind of OBD fault alarm method for vehicle, alarm system and vehicle

A fault alarm and vehicle technology, applied in the direction of alarm systems, alarms, vehicle components, etc., can solve the problems of easy false alarms and low alarm accuracy, and achieve the effect of good stability and strong robustness

Active Publication Date: 2022-07-26
ZHEJIANG GEELY HOLDING (GROUP) CO LTD +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the first aspect of the present invention is to provide an OBD failure alarm method for vehicles, to solve the technical problems that the vehicle emission alarm method in the prior art is prone to false alarms and the alarm accuracy is low

Method used

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  • A kind of OBD fault alarm method for vehicle, alarm system and vehicle
  • A kind of OBD fault alarm method for vehicle, alarm system and vehicle
  • A kind of OBD fault alarm method for vehicle, alarm system and vehicle

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] figure 1 It is a schematic flowchart of an OBD fault alarm method for a vehicle according to an embodiment of the present invention. like figure 1 As shown, in a specific embodiment, an OBD fault alarm method for a vehicle includes the following steps:

[0040] Step S100, when the vehicle meets the preset emission monitoring conditions, continuously obtain the carbon dioxide content and pollutant content emitted by the vehicle;

[0041] Step S200, accumulatively calculate the carbon di...

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Abstract

The invention provides an OBD fault alarm method, an alarm system and a vehicle for vehicles, and relates to the field of vehicle engines. The present invention first continuously obtains the carbon dioxide content and pollutant content emitted by the vehicle when the vehicle satisfies the preset emission monitoring conditions; and then accumulates and calculates the carbon dioxide content in multiple adjacent time periods until the accumulated value obtained by the accumulated calculation reaches the preset accumulated value End the cumulative calculation at the end of the year, and record the accumulated period as a window, and the starting period of the next window is the second period of the previous window; after that, according to the accumulated value of pollutant content in each window and the operating parameter information of the vehicle Calculate the pollutant emission value of each window; finally, selectively control the vehicle to perform OBD fault alarm according to the pollutant emission value of each window. The invention adopts the method of moving the window to calculate the emission value of the vehicle, so that whether the OBD fault alarm is to be carried out can be accurately judged during the actual driving process of the vehicle.

Description

technical field [0001] The invention relates to the field of vehicle engines, in particular to an OBD fault alarm method, an alarm system and a vehicle for vehicles. Background technique [0002] According to the requirements of the draft National VI emission standard for heavy-duty gasoline vehicles, hybrid heavy-duty gasoline vehicles will implement the National VI standard from July 1, 2023. Heavy-duty gasoline vehicles that meet the National VI emission standard must have the OBD threshold monitoring function. During the actual driving process Emission levels can be monitored in real time, and the status of pollution control devices can be monitored. If there is a failure of the emission control device during the driving process of the vehicle, and HC, CO, NOx, and PM are abnormally increased, the OBD system needs to indicate a failure before exceeding the threshold of the OBD system (on-board diagnostic system), and the MIL lamp (fault indicator light) to remind the dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/023F01N11/00G08B21/18
CPCB60R16/0237G08B21/18F01N11/007B60R2225/00Y02T10/40
Inventor 钱坤陈聪戴关林陈超
Owner ZHEJIANG GEELY HOLDING (GROUP) CO LTD
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