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Backup method for core data of NvM module based on AUTOSAR architecture

A technology of core data and backup, which is applied in the direction of data error detection, data processing input/output process, electrical digital data processing, etc., which can solve the problem of increasing hardware design complexity, BOM cost, memory abnormality, etc. question

Pending Publication Date: 2020-10-30
DELPHI TECH SUZHOU CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] 1. Due to external physical factors, the memory where the NV block is located is abnormal
[0008] 2. During software iteration, the design of NVM changes, for example, when the id and length of each data in the NV block change, and are incompatible with the old version
[0010] Generally speaking, for data backup, it is often necessary to add an additional EEPROM memory chip to the hardware, which increases the complexity of hardware design and the BOM cost of development

Method used

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  • Backup method for core data of NvM module based on AUTOSAR architecture
  • Backup method for core data of NvM module based on AUTOSAR architecture
  • Backup method for core data of NvM module based on AUTOSAR architecture

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0033] The invention relates to a method for backing up the core data of an NvM module based on the AUTOSAR architecture. The method makes full use of the ROM blocks in the NvM architecture of the AUTOSAR, and designs a set of methods for updating the ROM blocks of the core data, so that the NV blocks are actively erased. Or in the case of passive damage, the AUTOSAR mechanism can be used to retrieve the core data from the ROM block. Specifically, the method includes the following steps:

[0034] Step 1. Select a dedicated piece of ...

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Abstract

The invention relates to a backup method of NvM module core data based on an AUTOSAR framework. According to the method, the ROM block in the NvM architecture of the AUTOSAR is fully utilized, and a method for updating the ROM block of the core data is designed, so that under the condition that the NV block is actively erased or passively damaged, the core data can be obtained again from the ROM block by utilizing the mechanism of the AUTOSAR. Compared with the prior art, the method has the advantages that the complexity of hardware design can be reduced, and the BOM development cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of automobile data storage, in particular to a method for backing up core data of an NvM module based on an AUTOSAR architecture. Background technique [0002] There are all kinds of variables in the memory of the automotive ECU, and most of the variables are lost when the ECU is powered off. There are also some very important variables that will always exist along with the entire ECU life cycle. For example, the VIN code of the vehicle, the anti-theft key, the configuration word of the vehicle offline, etc. AUTOSAR (Automotive open system architecture) provides a foundation for efficient management of increasingly complex vehicle electronics and software systems, which can improve cost efficiency while ensuring product and service quality. [0003] The overall framework of AUTOSAR is a layered design, with the middleware RTE (Runtime Environment) as the boundary, isolating the upper application layer and ...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F3/06
CPCG06F11/1448G06F3/065G06F3/0652G06F3/064G06F3/0619G06F3/0679
Inventor 姚燚王磊
Owner DELPHI TECH SUZHOU CO LTD
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