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A method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal scr

A temperature data, vehicle-mounted terminal technology, applied in the field of testing the temperature data consistency of vehicle-mounted terminal SCR inlet and outlet, to achieve the effect of reliable data and conclusions, reducing test cost loss, and improving verification work efficiency

Active Publication Date: 2021-11-23
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, relevant test methods are still blank at home and abroad.

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  • A method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal scr
  • A method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal scr
  • A method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal scr

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] A method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal SCR according to the scheme of the present invention includes two test parts: a static test and a dynamic test, and the specific test contents are as follows:

[0028] The transmission of the actual operating parameters of the vehicle to the data platform needs to go through the following four transmission nodes: actual temperature to temperature sensor, temperature sensor to controller, controller to vehicle terminal, vehicle terminal to data platform or remote platform.

[0029] Static test means that the temperature sensor of the SCR inlet and outlet is removed from t...

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Abstract

The invention provides a method for testing the consistency of temperature data at the entrance and exit of a vehicle-mounted terminal SCR, comprising the following steps: 1) Static test, the vehicle is in the idling state in situ, the temperature sensors at the entrance and exit of the SCR are removed from the SCR housing, and placed In the temperature controller; verify the consistency of the set value of the temperature controller and the test data from the remote platform; 2) Dynamic test, keep the temperature sensors at the inlet and outlet of the SCR installed in the SCR normally, and verify that the vehicle is in a driving state The consistency of the data read by the CAN network node with the test data from the remote platform. The present invention adopts two test methods, static and dynamic. Compared with the traditional method of directly drilling and installing sensors on the catalyst carrier, the test conclusion can be obtained more quickly, and the heavy workload of hardware drilling and the possible risk of carrier damage can be avoided. At the same time, it is relatively easy to find problem points in the data chain through the segmentation confirmation of static and dynamic data transmission paths.

Description

technical field [0001] The invention belongs to the technical field of vehicle testing, and in particular relates to a method for testing the consistency of temperature data at an SCR inlet and outlet of a vehicle-mounted terminal. Background technique [0002] In order to realize the online monitoring and management of the whole vehicle, the National VI emission standard for heavy-duty vehicles (GB 17691-2018 "Heavy-duty Diesel Vehicle Pollutant Emission Limits and Measurement Methods (China Phase VI)" appendix Q) clearly stipulates that the National VI The whole vehicle needs to be installed with remote monitoring terminal equipment, and send monitoring data to the enterprise platform, and the enterprise platform forwards the terminal data to the national platform for unified management. [0003] The data transmission technology of the vehicle-mounted terminal for remote emission management is currently an important means for the national environmental protection departmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007G01M15/04H04L1/24
CPCG01M15/048G01M17/007H04L1/24
Inventor 任烁今颜燕付铁强郭勇刘麟王凤滨李博尚勋
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
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