Reuse method for automobile body controller MCU port

A body controller and body control technology, which is applied in the direction of sequence/logic controller program control, electrical program control, etc., can solve the problem of rising automobile production costs, shortage of MCU port resources of the body controller, and inability to meet the control requirements of vehicle electronic products. demand and other issues

Active Publication Date: 2014-02-12
WUHU HONGJING ELECTRONICS
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AI Technical Summary

Problems solved by technology

[0002] In the development process of vehicle-mounted electronic products, due to the shortage of MCU port resources of the body controller, it is unable to meet the control requirements of more and more vehicle-mounted electronic products
[0003] If the vehicle body controller MCU is re-selected, system

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  • Reuse method for automobile body controller MCU port

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Embodiment Construction

[0016] In the case of shortage of MCU port resources of the vehicle body controller, the present invention uses one port for ACC detection, high and low voltage detection, and button BEEP sound output in different situations. It avoids the need to re-select the MCU of the body controller, design the software and hardware, and increase the cost due to the shortage of MCU port resources of the body controller.

[0017] If the body controller MCU is re-selected, it means that the original software and hardware solutions must be overthrown, and the new solution requires the development team to invest a lot of energy in software development, hardware development and experimental verification. To some extent, it will delay the product launch cycle, so that both customers and suppliers will suffer huge economic losses.

[0018] specific as figure 1 As shown, in the present invention, the P2.2 port of the vehicle body controller MCU is connected to the ACC detection circuit 1 and the...

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Abstract

The invention discloses a reuse method for an automobile body controller MCU port. The reuse method is characterized in that the P2.2 port of an automobile body controller MCU is connected with an ACC detection circuit and a BEEP sound output circuit at the same time, the BEEP sound output circuit is connected with a power amplification circuit, and the P2.2 port is used for ACC detection, high-low voltage detection and button BEEP sound output respectively. The reuse method has the advantages that one port of the automobile body controller MCU is used for achieving ACC detection, high-low voltage detection and button BEEP sound output at the same time, so that the problem that the port resource of the MCU is scarce is solved, and the automobile body controller MCU of existing automobiles can be improved, so that the condition is provided for arranging automobile-mounted electronic products on the automobile body controller MCU.

Description

technical field [0001] The invention relates to the field of design and manufacture of a vehicle body controller MCU, in particular to a method for multiplexing ports of the vehicle body controller MCU. Background technique [0002] In the development process of vehicle-mounted electronic products, due to the shortage of MCU port resources of the body controller, it is unable to meet the control requirements of more and more vehicle-mounted electronic products. [0003] If the vehicle body controller MCU is re-selected, system architecture analysis and software and hardware design need to be re-conducted, and a large number of experimental verifications must be carried out at the same time to ensure the reliability and stability of the re-selected body controller MCU. lead to an increase in the cost of automobile production. [0004] In view of the above problems, in the case of shortage of port resources of the MCU of the body controller, it is a problem to be solved in th...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 李爱华田学林付聪邱万富水新荣刘朝操启
Owner WUHU HONGJING ELECTRONICS
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