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Engine electronic control unit

A technology of electronic control unit and engine, which is applied in the direction of engine control, electrical control, machine/engine, etc., and can solve problems that affect the reliable and normal operation of the single-chip microcomputer control system.

Inactive Publication Date: 2011-09-14
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The latter kind of interference is direct and has the greatest impact, which may seriously affect the reliable and normal operation of the single-chip microcomputer control system

Method used

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  • Engine electronic control unit
  • Engine electronic control unit
  • Engine electronic control unit

Examples

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Embodiment Construction

[0014] figure 1 An engine electronic control unit ECU 100 according to one embodiment of the present invention is shown. As shown in the figure, the engine electronic control unit ECU 100 includes a main control module 110 , a sensor signal acquisition module 120 , an actuator drive module 130 and a power supply module 140 .

[0015] The main control module 110 is used for receiving signals collected by sensors, executing control algorithms, and outputting control signals. The main control module 110 generally includes a single-chip microcomputer as a main control chip and its peripheral processing circuits. The electronic control unit controls many objects and requires high control precision. Therefore, the single-chip microcomputer used generally needs to have high-speed computing and processing capabilities, and preferably has a large-capacity storage space. The single-chip microcomputer suitable as the main control chip of the engine electronic control unit may be, for e...

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Abstract

The embodiment of the invention provides an engine electronic control unit. The engine electronic control unit can comprise a main control module, a sensor signal acquiring module, an actuator drive module and a power supply module, wherein the main control module is used for receiving a signal acquired by a sensor and outputting a control signal; the sensor signal acquiring module is used for acquiring the signal of the sensor and providing the signal for the main control module; the actuator drive module is used for driving an actuator according to a control signal received from the main control module; and the power supply module is used for respectively supplying power to the main control module, the sensor signal acquiring module and the actuator drive module. DC / DC (Direct Current / Direct Current) isolating devices are respectively configured between the power supply module and each of the modules; and signal isolating devices are respectively configured between the main control module and the actuator drive module and between the main control module and the sensor signal acquiring module. The engine electronic control unit disclosed by the invention realizes isolation between an interference source and the main control module by carrying out modular design and arranging the isolating protection devices among the modules, therefore, the external interference resistance of the engine electronic control unit is improved.

Description

technical field [0001] The invention relates to an engine electronic control unit. Background technique [0002] The control system of the current engine usually uses an electronic control unit. The electronic control unit (ECU) usually includes a single-chip microcomputer as a main control chip and other analog and / or digital circuits. The working environment of the engine ECU is very complex, and there are many uncertain sources of interference. These disturbances may enter the ECU (especially the single-chip microcomputer) and seriously affect the reliability of the ECU, thereby affecting the normal operation of the vehicle and even causing vehicle safety failures. Therefore, the electronic control system as the nerve center of the electronically controlled engine needs to have high reliability and anti-electromagnetic interference to reduce the impact of various interferences. [0003] From the analysis of the form of interference, there are two main channels for inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00
Inventor 孙少军佟德辉刘颖帅徐文俊
Owner WEICHAI POWER CO LTD
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