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Method for predicting residual life of vehicle-mounted electronic system

A technology for on-board electronics and system life, which is used in forecasting, instrumentation, data processing applications, etc.

Active Publication Date: 2021-06-25
ZHEJIANG LEAPMOTOR TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: the technical problem that the existing vehicle electronic system cannot accurately predict and reflect the actual remaining life of the vehicle electronic system in real time

Method used

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  • Method for predicting residual life of vehicle-mounted electronic system
  • Method for predicting residual life of vehicle-mounted electronic system
  • Method for predicting residual life of vehicle-mounted electronic system

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Embodiment Construction

[0026] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION DETAILED DESCRIPTION OF THE INVENTION

[0027] Such as figure 1 As shown, the embodiment includes the following steps

[0028] B1. During the operation of the in-vehicle electronic system, load working conditions and evaluation index data are collected by the sensor, and stored to the host computer memory;

[0029] B2. Determine the critical value M0 of the evaluation index;

[0030] B3. Every time Δt, the load conditions and evaluation index are resampled for evaluation index current value MJ, and the current degradation rate Vj of the evaluation index is calculated;

[0031] B4. Evaluation indicators in B2. The critical value of M0 and B3 in B2. The current value MJ and the degenerative rate Vj calculate the remaining life LJ in each time.

[0032] B5. Calculate activation energy change amount PM;

[0033] B6. When the activation variation amount PM occurs and the minimum value, the corresponding predicted ...

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Abstract

The invention provides a method for predicting the residual life of a vehicle-mounted electronic system, which is high in algorithm optimization degree and accurate in prediction result, and comprises the following steps: B1, in the operation process of the vehicle-mounted electronic system, acquiring load working conditions and evaluation index data in real time through a sensor, and storing the load working conditions and the evaluation index data into an upper computer memory; B2, determining a critical value M0 of an evaluation index; B3, resampling the load working condition and the evaluation index every time [delta]t to obtain the current value Mj of the evaluation index, and calculating the current degradation rate vj of the evaluation index; B4, calculating the residual life Lj at each moment according to the evaluation index critical value M0 in the B2, the evaluation index current value Mj in the B3 and the degradation rate vj; B5, calculating an activation energy variation Pm; and B6, when the activation energy variation Pm has an inflection point and is a minimum value, displaying the corresponding predicted life at the moment and notifying a user.

Description

Technical field [0001] The present invention relates to the field of electronic system assessment, and more particularly to a prediction method of the remaining life prediction method of in-vehicle electronic system. Background technique [0002] Automotive electronics is considered a revolution in the process of automotive technology development. The extent of automotive electronics is considered to be an important indicator of modern automotive levels, which is used to develop new models and improve automotive performance. Automakers believe that increase the number of automotive electronic equipment, promoting automotive electronics is an important means of effectiveing ​​future auto markets. [0003] Automotive electron is a general title of a vehicle body automotive electronic control device and a vehicle automotive electronic control device. Body Automotive Electronics Control Device, including engine control systems, chassis control systems, and body electronic control sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06
CPCG06Q10/04G06Q10/06393Y02D10/00
Inventor 苏楠
Owner ZHEJIANG LEAPMOTOR TECH CO LTD
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