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Rapid correction method developed based on diagnostic apparatus for commercial vehicle instrument speed and mileage

A calibration method and technology of a diagnostic instrument, applied in the field of service opening of a diagnostic instrument, can solve problems such as affecting the utilization rate of vehicles, affecting user profitability, affecting user satisfaction, etc., so as to improve service timeliness, prevent illegal changes, and facilitate maintenance analysis. Effect

Inactive Publication Date: 2020-04-14
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when repairing the transmission assembly system, after replacing the gearbox, drive axle or wheels, you must wait for the instrument software designer to come to the scene to refresh the software, which will greatly affect the maintenance efficiency, reduce the utilization rate of the vehicle, indirectly affect the user's profit, and directly affect user satisfaction
[0004] There are many reference factors for setting vehicle speed and mileage in the instrument, and they must meet the requirements of laws and regulations, and the setting authority cannot be fully opened to users or service stations
Once the transmission assembly configuration of the vehicle is changed, the instrument software designer needs to be on site to refresh the software, which will incur travel expenses, labor costs, etc.; if the transmission assembly is replaced in batches of vehicles in the market, not only the labor cost will increase sharply, but also human resources may be insufficient. , affecting the progress of software flashing, thereby affecting the vehicle utilization rate

Method used

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  • Rapid correction method developed based on diagnostic apparatus for commercial vehicle instrument speed and mileage
  • Rapid correction method developed based on diagnostic apparatus for commercial vehicle instrument speed and mileage
  • Rapid correction method developed based on diagnostic apparatus for commercial vehicle instrument speed and mileage

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Experimental program
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specific Embodiment 1

[0068] Specific embodiment 1 provides an authorization interface, such as figure 1 As shown, in order to ensure that the user or service station cannot change the K value of the meter at will, an authorization interface needs to be created. After the authorization is successful, that is, the identity verification is successful, enter the driving mileage correction mask, such as figure 2 As shown, enter the new configuration parameters and perform the calibration.

[0069] Among them, the main functions / methods of authorization between PC and server are as follows: Login function: private voidINSWriteKDataCheck_Load(object sender,EventArgs e); Generate random code function: privatevoid btn_CreateCode_Click(object sender,EventArgs e); Calculation activation code function: privatestring RegCode(string strCode); Enter the correction interface function: private void btn_Active_Click(object sender, EventArgs e). In the function of entering the correction interface, if the calcula...

specific Embodiment 2

[0072] Specific embodiment 2 provides a user-level application scenario of the present invention, specifically including the following:

[0073] Step 1: The vehicle end is connected to the PC end through the diagnostic instrument, and the service station operates the PC end and connects the instrument. Before connecting, pay attention to confirm that the main power switch is turned on and the ignition lock is in the ON state.

[0074] Step 2: Activate the "Vehicle Speed ​​and Mileage Correction" function

[0075] The vehicle speed and mileage correction function needs to be authorized. Click "Generate Random Code". After the random code is generated, click "Copy" to send it to the OEM to obtain the authorization code. Do not close the authorization interface at this time. image 3 shown.

[0076] The OEM feeds back the authorization code to the service station, and the service station copies and pastes the authorization code, and then clicks "Enter the vehicle speed and mile...

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PUM

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Abstract

According to the technical scheme, a rapid correction method developed based on a diagnostic apparatus for the commercial vehicle instrument speed and mileage is characterized by comprising the following steps that a vehicle terminal is electrically connected with a PC terminal through the diagnostic apparatus; the PC terminal and a server carry out identity authentication; the PC terminal acquires a set value of a parameter needing to be adjusted and a corresponding original value, and calculates the new pulse number, namely a value K, generated by a vehicle speed sensor per kilometer according to the adjusted set value; the PC terminal writes acquired external parameters and the calculated new value K into the instrument of the vehicle terminal through the diagnostic apparatus; and the instrument at the vehicle terminal corrects the vehicle speed and mileage according to the new value K. The invention provides the method to overcome defects in the prior art and update software of thevehicle terminal remotely.

Description

technical field [0001] The present invention relates to the technical field of diagnostic instrument start-up service, in particular to a method for quickly correcting the vehicle speed and mileage of a commercial vehicle instrument developed based on the diagnostic instrument. Background technique [0002] When repairing the transmission assembly system of a commercial vehicle, the gearbox, drive axle or wheel configuration need to be changed, and the original values ​​of the calculated vehicle speed and mileage in the instrument also need to be reset. Since neither the user nor the service station has the conditions to reset the instrument parameters, it is necessary for the instrument software designer to flash the software on site. [0003] Commercial vehicles are profitable vehicles, and the timeliness of maintenance directly affects their profitability. For example, when repairing the transmission assembly system, after replacing the gearbox, drive axle or wheels, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 王喆琼张凯贤徐家明牛方兴王高举邓莹赵昊汪名松刘壮
Owner DONGFENG COMML VEHICLE CO LTD
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