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Electronic control method for engine with oil supply system using carburetor

A fuel supply system and carburetor technology, applied in engine control, machine/engine, electrical control, etc., can solve problems such as inability to drive the actuator, high cost, and complex fuel injection system structure, and achieve power output optimization and improvement. The effect of ride performance

Active Publication Date: 2014-02-12
廊坊科森电器有限公司
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Problems solved by technology

[0005] In view of the above defects in the prior art, the problem to be solved by the present invention is that the carburetor fuel supply system has low precision in controlling the air-fuel ratio of the fuel-air mixture and the electronically controlled fuel injection system has a complex structure, high cost, and when the actuator is faulty. The problem of not being able to drive

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  • Electronic control method for engine with oil supply system using carburetor
  • Electronic control method for engine with oil supply system using carburetor
  • Electronic control method for engine with oil supply system using carburetor

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] First, combine Figure 1-Figure 5 Explain the composition of the electronic control system of the fuel supply system of the engine using the carburetor.

[0031] Such as figure 1 As shown, the electronic control system of the fuel supply system of the engine using the carburetor includes the ECU for control, that is, the electronic control unit, which is the core component of the system. On one MCU, there are ECU, various A / D (analog-to-digital) and D / A (digital-to-analog) converters are used for conversion of digital and analog signals, and power drive circuits to drive the air supply solenoid valve and ignition coil.

[0032] Such as figure 2 As shown, the control signal of the ECU (i.e. pulse current) is connected to the primary circuit of the ignition coil 12 through the ignition IGBT11, the secondary circuit of the ignition co...

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Abstract

The invention discloses an electronic control method for an engine with an oil supply system using a carburetor. The method includes the following steps that an electronic control unit (ECU) receives collected throttle percentage and engine speed signals; the ECU inquires a first three-dimensional management picture pre-stored in the ECU according to the throttle percentage and the engine speed to determine an ignition advance angle, independent variable of the first three-dimensional management picture is the throttle percentage and the engine speed, and dependent variable is the ignition advance angle; the ECU controls the ignition moment of an ignition coil according to the inquired ignition advance angle. An electronic fuel injection control principle is shifted on the engine using the carburetor, precise control can be conducted on air-fuel ratio and the engine ignition moment, and discharging and output are improved.

Description

technical field [0001] The invention relates to an electronic control method for a fuel system of a small-displacement engine, in particular to an electronic control method for an engine whose fuel supply system adopts a carburetor. Background technique [0002] The oil supply system of the engine of the motorcycle of prior art is generally divided into two kinds: carburetor oil supply system and electronic control fuel injection system. [0003] The carburetor oil supply system mainly includes ordinary carburetors and three-way catalytic converters, which are relatively simple in structure, easy to match, and low in cost. The catalytic converter exerts the best conversion efficiency, and it is difficult to control the emission of pollutants. With the continuous improvement of emission standards, it is becoming more and more difficult to achieve emission compliance with the technical route of ordinary carburetor plus three-way catalytic converter. [0004] The electronical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00
Inventor 张红亮张文力孟祥禄解洪达
Owner 廊坊科森电器有限公司
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