Control method for peripheral device during ECU application layer software updating and storage medium

A technology of peripheral devices and control methods, applied in general control systems, software deployment, program control, etc., can solve problems such as high low-voltage energy consumption, vehicle failure, and long time consumption, and achieve the effect of improving coordination and matching.

Active Publication Date: 2022-02-15
黄冈普赫氢能商用车有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the promotion of OTA technology, the multi-ECU application layer software of the vehicle will be packaged together for OTA upgrade, which takes a long time. During the OTA process, the vehicle’s low-voltage lead-acid battery is used for power supply. The capacity of the lead-acid battery is small, and the power consumption during the upgrade needs to be controlled. And try to be as low as possible, otherwise the lead-acid battery feed will easily fail to upgrade, resulting in vehicle failure
[0003] The peripheral devices controlled by each controller of the new energy vehicle are divided into high-level, low-level control, PWM duty cycle control and other methods. When updating the application layer software, the software will be erased first and then written into the new software. There is no application layer software control in the process. The level of the device pin will grow high or low, some peripheral devices such as cooling fans, water pumps, and level-type devices may have a level enable that causes high-speed constant rotation, and PWM-type devices will have a duty cycle of 0 or 100%. High-speed constant rotation, low-voltage energy consumption is very high at this time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method for peripheral device during ECU application layer software updating and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one, such as figure 1 As shown, it is a schematic flow diagram of a control method for peripheral devices when the ECU application layer software is updated, and the application layer software stores the control parameters of the peripheral devices set by the software as the previous priority control parameters; at the same time, the application layer software backs up and stores the aforementioned Control parameters of peripheral devices, and use the backed up and stored control parameters as the latter priority control parameters;

[0038] When the application layer software is in the update state, the Boot loader reads the previous priority control parameters; checks the previous priority control parameters, and when the previous priority control parameters pass the verification, the Boot loader reads the previous priority control parameters , and control the operation of peripheral devices corresponding to the hardware interface through the hardware inter...

Embodiment 2

[0045]Embodiment 2, when the hydrogen energy vehicle ECU application layer software is updated and erased, use the Boot loader (bootloader) to control the peripheral devices, and the control parameters of the peripheral devices are evaluated by the application layer developers for energy consumption, and use the application layer software Write to the ECU public data storage area such as Flash, and the Bootload reads the control parameters from the ECU public data storage area such as Flash, and controls the operation of the corresponding peripheral equipment through the hardware interface. In this case, the Boot loader is still versatile.

[0046] More preferably, the application layer software backs up and stores the control parameters of the aforementioned peripheral devices as the latter priority control parameters. Bootload reads the previous priority control parameters written in the ECU public data storage area such as Flash in the previous steps and performs verificati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a control method for a peripheral device during ECU application layer software updating and a storage medium, and the method comprises the steps: controlling all hardware interfaces through a Boot loader when the application layer software is in an updating state, wherein the Boot loader reads the previous priority control parameter and verifies the previous priority control parameter, and when the previous priority control parameter passes the verification, the hardware interface of the Boot loader controls the peripheral device to operate according to the corresponding control parameter; and when the verification is not passed, reading and verifying the next priority control parameter, and when the verification is passed, controlling the peripheral device to operate according to the control parameter corresponding to the peripheral device by the Boot loader through the hardware interface by using the next priority control parameter. According to the method, on the premise that the universality of bottom software is guaranteed, the control method for the peripheral device after the application layer software is erased during updating is achieved, and the device can work under the required working conditions of low consumption, shutdown and the like.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle control, in particular to a control method and a storage medium for peripheral devices when ECU application layer software is updated. Background technique [0002] With the promotion of OTA technology, the multi-ECU application layer software of the vehicle will be packaged together for OTA upgrade, which takes a long time. During the OTA process, the vehicle’s low-voltage lead-acid battery is used for power supply. The capacity of the lead-acid battery is small, and the power consumption during the upgrade needs to be controlled. And try to be as low as possible, otherwise the lead-acid battery feed will easily fail to upgrade, resulting in vehicle failure. [0003] The peripheral devices controlled by each controller of the new energy vehicle are divided into high-level, low-level control, PWM duty cycle control and other methods. When updating the application layer software, the sof...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G06F8/65
CPCG05B19/0423G06F8/65G05B2219/25257
Inventor 梅建元郝义国张江龙邵毅何宇
Owner 黄冈普赫氢能商用车有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap