A startup control system and startup method

A technology of starting control and control method, applied in the field of vehicle control

Active Publication Date: 2021-08-20
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of this application is to provide a start-up control system and a start-up method, which are used to solve the problem in the prior art that the controller connector needs to reserve pins for controlling the start-up mode of the controller

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  • A startup control system and startup method
  • A startup control system and startup method
  • A startup control system and startup method

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0052] The application provides a startup control system, the system includes a controller, the controller includes a main MCU and an auxiliary MCU, the CAN pin of the auxiliary MCU is connected to an external CAN communication bus, the first IO pin of the auxiliary MCU is connected to the The startup mode control pin of the main MCU is connected, and th...

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Abstract

The application provides a starting control system and a starting method. The starting control system includes a controller, the controller includes a main MCU and an auxiliary MCU, the CAN pin of the auxiliary MCU is connected to an external CAN communication bus, and the first IO pin of the auxiliary MCU The pin is connected to the startup mode control pin of the main MCU, and the auxiliary MCU controls the first IO pin to output a corresponding control signal based on the CAN pin receiving the control information, and through the first IO The control signal output by the pin controls the main MCU to start and run according to the corresponding startup mode. Since the auxiliary MCU inside the controller only needs to be connected to the CAN communication bus, the start-up mode of the main MCU can be controlled through the IO pin of the auxiliary MCU itself to control the change of the pin level signal, thereby controlling the switching between the start-up modes of the main MCU Therefore, there is no need to provide additional pins from the outside of the controller to control the startup mode of the main MCU, so that the controller connector does not need to reserve pins for controlling the switching of the startup mode of the main MCU, which saves pin resources.

Description

technical field [0001] The present application belongs to the technical field of vehicle control, and in particular relates to a starting control system and a starting method. Background technique [0002] The start-up mode of the single-chip microcomputer includes starting from the internal FLASH, starting from the external memory, entering the CAN download mode, and so on. Wherein, the switching of the start-up mode of the single-chip microcomputer is determined by the level signal of the start-up mode control pin (HWCFG) of the single-chip microcomputer. [0003] A controller developed based on a single-chip microcomputer, such as an ECU (Electronic Control Unit, electronic control unit), can control the switching of the startup mode of the controller by controlling the level of the startup mode control pin of the single-chip microcomputer. [0004] At this time, it is necessary to reserve pins of the controller connector to connect the startup mode control pins of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423
Inventor 刘晓波刘小强杨英振徐龙增丛聪
Owner WEICHAI POWER CO LTD
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