ECU for electric-controlled petrol engine work system

Abstract

The invention provides an ECU used in a work system of an electronic control gasoline engine; the ECU consists of an input circuit used for connecting a sensor section of the work system, a singlechip CPU, a memory ROM, a RAM and an output circuit used for connecting an actuator section of the work system; two ends of the singlechip CPU are connected with the input circuit and the output circuit, and the memory ROM and the RAM are connected with the singlechip CPU; The electronic control unit ECU (7) includes a control program which can receive input signals from relevant sensors, carry out arithmetic treatment and send command signals to corresponding actuators, and the control program includes a fuel injection control program, an ignition control program and an idle speed control program; the ECU adopts reasonable control strategy and has comprehensive control function, good integrated performance of control function and fine system portability.

Description

technical field [0001] The invention belongs to the technical field of automotive electronics, and relates to an electronic control unit (ECU) used in an electronically controlled gasoline engine working system. Background technique [0002] The engine working system is also called the engine management system (Engine management system or EMS), which is based on the engine electronic control unit (ECU) as the control center, and uses the sensors installed in various parts of the engine to measure various engine operating parameters, according to the preset control of the ECU. The program precisely controls the fuel injection amount, injection time, ignition advance angle, etc., so that the engine can work in the best state, the best power output, the most economical fuel consumption and the emissions that meet the regulatory requirements under various operating conditions. [0003] From the name, ECU is the abbreviation of the first three letters of the English name (Electri...

AI Technical Summary

Problems solved by technology

[0007] ECU technology is the core technology of the engine management system. It may be that several multinational companies that were in a leading position in this technology field in the past, such as Bosch of Germany and Denso of Japan, always try to block their technology for the purpose of their commercial interests, resulting in In the prior art, there is no disclosure of a complete, reliable, and excellent technical solution. The disclosed prior art has many shortcomings such as unreasonable control strategy adopted by the system, incomplete control functions, poor control function integration performance, and poor system portability. , causing disadvantages to the development of technology in this field

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