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Engine electric-controlled unit

An electronic control unit and engine technology, which is applied to engine components, engine control, engine ignition, etc., can solve the problems of complex and expensive engine electronic control units.

Inactive Publication Date: 2008-08-27
CHINA VAGON AUTOMOTIVES HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, with the increasingly stringent national regulations on automobile emission pollutants, rising oil prices and the improvement of user requirements for system performance, the requirements for the reliability, economy and technical content of the engine electronic control unit are also continuously increasing. However, the current engine The electronic control unit is very complex and expensive

Method used

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  • Engine electric-controlled unit
  • Engine electric-controlled unit
  • Engine electric-controlled unit

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Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] The ECU has one (K line) or two (L lines) external communication lines, where the K line is used for two-way data transmission from the self-diagnostic instrument to the ECU, and the L line is used for one-way data transmission from the self-diagnostic instrument to the ECU. Either can be used for serial communication initialization. The signal channel detection is to power on the ECU, communicate with the PC with the K line, and display some channel conditions on the PC.

[0035] Fig. 1 is a schematic structural diagram of an engine electronic control unit according to an embodiment of the present invention. The engine electronic control unit of the present inven...

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Abstract

The invention discloses an engine ECU, comprising a main control chip, an analog signal input circuit, a switching value signal input circuit, a VSS signal input circuit, a camshaft signal input circuit, a crankshaft signal switching circuit, a knocking signal processing circuit, a CAN line communication circuit, a K line communication circuit, a power management circuit, an output drive circuit, a drive circuit of an idle speed stepping motor, a co-processing chip and a serial FLASH circuit. The engine ECU can control the fuel charge, fuel injection rate and the fuel injection time of the engine well and has the advantages of concise circuit, high density of integration, high reliability, low cost and comprehensive functions.

Description

technical field [0001] The invention relates to the field of engine ignition control, in particular to an engine electronic control unit. Background technique [0002] ECU (Electronic Control Unit, electronic control unit) is one of the three elements (sensor, actuator, electronic control unit) of the vehicle electronic control system, and is the core component of the vehicle electronic control system. The names of the electronic control units of different manufacturers are not consistent. For example, the Japanese Denso company is called ECU, the German doctor company is called EDU, Weifu company is also called EDU, and the engine control unit (Engine Control Unit) and so on. The basic function of ECU is to keep the engine in the best combustion state under real-time working conditions and external working conditions. ECU is widely used in various electronic control systems, such as: electronically controlled common rail system, electronic governor, electronically controll...

Claims

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Application Information

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IPC IPC(8): F02D43/04F02D41/40F02P5/152
Inventor 李朝晖孙丽
Owner CHINA VAGON AUTOMOTIVES HLDG CO LTD