Electric-controlled petrol engine work system

Abstract

The invention provides a work system of an electronically controlled gasoline engine, comprising an air intake system, a fuel oil supply system, an ignition system as well as an electronic control system; the electronic control system consists of a sensor section, an electronic control unit ECU and an actuator section, wherein, the sensor section includes a throttle position sensor, an intake pressure and temperature sensor and an intake temperature sensor which are arranged on an intake pipe of an intake system, a camshaft position sensor, a coolant temperature sensor and a crankshaft position sensor which are arranged on the engine, a front oxygen sensor arranged in front of a three-way catalyst converter on an exhaust pipe of the engine, and the components of the sensor section are all connected with the ECU, and the actuator section consists of an electric fuel pump, an oil sprayer, an idle speed regulating valve and an ignition coil; the components of the actuator section are all connected with the ECU, and the ECU includes a fuel injection control program, an ignition control program and an idle speed control program; the system 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 automobile electronics and relates to 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 (Electrical control unit), which means electronic ...

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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