Boot loader device capable of updating automatically and updating method thereof

A technology for automatically updating and updating programs, applied in the direction of program control devices, program loading/starting, etc., can solve problems such as bootloader program damage, increased workload of maintenance personnel, incomplete bootloader program upgrades, etc., to achieve the effect of reducing workload

Active Publication Date: 2014-08-20
WEICHAI POWER CO LTD
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Problems solved by technology

[0007] One case is that when modifying the EMS application program in the image file, the bootloader program or the entire image file in the image is modified by mistake, so that the bootloader guide program or the image file cannot be loaded normally; Sudden power failure occurs when the bootloader is being upgraded, resulting in incomplete

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  • Boot loader device capable of updating automatically and updating method thereof
  • Boot loader device capable of updating automatically and updating method thereof
  • Boot loader device capable of updating automatically and updating method thereof

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[0059] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0060] To facilitate the introduction of the present invention, first introduce the execution sequence when the ECU is started.

[0061] In the normal startup process of a general ECU, the bootloader boot loader should be loaded first, and when the bootloader boot loader is running normally, the EMS application program is loaded and the basic software and application software are run.

[0062] See figure 1 This figure is a functional block diagram of the first embodiment of an automatically updated bootloader device provided by the present invention.

[0063] In this embodiment, the device 100 includes:

[0064] The first module 10 of the bootloader boot program and the second module 20 of the bootloader boot program.

[0065] The fi...

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Abstract

The invention provides a boot loader device capable of updating automatically and an updating method thereof. The boot loader device comprises a boot loader first module and a boot loader second module. The boot loader first module is used for operating a boot loader and updating an EMS area. The boot loader second module is used for updating a boot loader in the boot loader first module according to a boot and updating loader sent by an upper computer. By using the device, fault response and recovery of the boot loader can be realized, the cumbersome work that in the prior art, maintenance personnel need to open an ECU for program resetting is avoided, and the workload of the maintenance personnel is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of single-chip microcomputer control, in particular to an automatically updated bootloader device and an update method. Background technique [0002] With the existing electromechanical control technology field, electronic control unit ECU (Electronic Control Unit) is widely used in various electronic control equipment. [0003] In the common rail accumulator injection system, the ECU is used to inject the correct fuel injection quantity at the correct fuel injection point with the correct fuel injection pressure by means of the solenoid valve on the fuel injector by receiving the signal from the sensor , to ensure the best combustion ratio, the best atomization effect and the best ignition time of the diesel engine, so as to achieve good economy and the least pollution emission. [0004] Among them, the ECU includes a bootloader guide program and an EMS application program. The bootloader guide module is ...

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Application Information

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IPC IPC(8): G06F9/445
Inventor 史家涛刘晓波纪小娟陈娜娜刘名
Owner WEICHAI POWER CO LTD
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