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Energy balance ignition circuit of gasoline engine and balance control method

An ignition circuit and gasoline engine technology, applied in ignition controllers, electric spark ignition controllers, engine ignition, etc., can solve the problem of quantitative control means of energy storage circuit and booster circuit, constant voltage ignition and adjustment of ignition energy according to working conditions Issues such as immature technology

Active Publication Date: 2013-01-09
曹杨庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology can also use the method of measuring the battery voltage and rotational speed to correct the ignition voltage by controlling the voltage of the energy storage capacitor, but because it is not based on constant voltage technology, nor does it adopt a good quantitative control method for the energy storage circuit and booster circuit. The technology of constant pressure ignition and adjusting ignition energy according to working conditions is not yet mature

Method used

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  • Energy balance ignition circuit of gasoline engine and balance control method
  • Energy balance ignition circuit of gasoline engine and balance control method
  • Energy balance ignition circuit of gasoline engine and balance control method

Examples

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example 1

[0054] Example 1: see figure 2 , the duty ratio signal controls the boost motorcycle constant voltage ignition circuit. Including control circuit, ignition circuit, energy storage circuit, drive circuit, boost circuit, measurement circuit. Among them, the ignition circuit, energy storage circuit, and control circuit all adopt standard or common circuits, the relevant circuit diagrams are simplified, and the descriptions are simplified or omitted. The control circuit is a single-chip microcomputer or a collection of single-chip microcomputer and other circuits. The control circuit can also use a digital circuit to imitate a single-chip microcomputer to achieve similar functions without a single-chip microcomputer.

[0055] The control circuit of this example adopts 89C52, and adopts the duty ratio control type boost circuit. P1.0 is connected to the drive circuit. Comprehensively considering the different working conditions of the engine, the voltage required for ignition...

example 2

[0067] Example 2: Reference image 3 , with a current-limiting drive duty ratio signal to control the boost constant voltage ignition circuit. Including control circuit, ignition circuit, energy storage circuit, drive circuit, boost circuit, measurement circuit and pulse shaping circuit. The control circuit adopts PIC12F615, and the boost circuit is controlled by a duty ratio signal. The INT end of the microcontroller is connected to the output of the pulse shaping circuit, the GP5 is connected to the input of the drive circuit, and its output is connected to the control end of the boost control end TIP122 of the boost circuit. The driving circuit includes a resistor and a diode, and a primary current limiting circuit of the step-up transformer. The primary current is sampled by R1, and the triode T1 is fed back to the driving side.

[0068] The measurement circuit is a pair of voltage divider resistors, and its voltage divider output is connected to the CIN0- terminal of t...

example 3

[0074] Example 3: Transformer oscillation step-up motorcycle constant voltage and cylinder temperature compensation ignition circuit. refer to Figure 4 , The control circuit is MC9S08JM60 / 32 series. The circuit includes the aforementioned partial circuits and connection principles with corresponding functions. Selected an interrupt input port KBIP7, two output ports PTB4, PTB5, an AD conversion input port ADP2 and an analog comparator input port ACMP-. The single-chip microcomputer is rich in port line resources, and each port can be adjusted according to the needs of peripheral functions. Use other single-chip microcomputer circuits and replace them with port lines with the same function. A transformer oscillating boost circuit is used, and its output is connected to the energy storage circuit through the diode D1.

[0075] The PTB5 of the control circuit sends out a high-level control signal, which reaches the control terminal of the boost circuit through the drive cir...

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Abstract

The common-rail direct injection (CDI) ignition technology of an existing gasoline engine has the disadvantages that the supply and the demand of ignition energy are unbalanced and the energy output by an ignition circuit cannot be accurately provided according to the needs of an engine. Ignition is realized at constant pressure based on a basic balance technology, and for the balanced supply and demand of the ignition energy, a control circuit controls the operation state of a booster circuit through a driving circuit by measuring the voltage of an energy storage circuit and outputting a booster control signal accordingly, so that the ignition voltage is constant and meets the standard. Ignition energy demand factors, such as cylinder temperature, and the position of a throttle which are changed along with the working conditions of the engine are detected, and the corresponding energy storage voltage is calculated. Based on constant pressure control, booster parameters are measured, the ignition energy is quantitatively compensated cycle by cycle, so that the balance control over the working conditions is realized. Constant pressure and working condition balancing technologies are collectively called as energy balance control which is an energy qualitative ignition technology and is a new generation of mature ignition technology. An energy balancing technology is adopted for manufacturing a good direct current igniter, and within a certain battery voltage and rotating speed, the ignition voltage or the corresponding energy storage voltage are constant to be design values or values which are quantitatively provided according to the needs of the working conditions.

Description

technical field [0001] The proposal belongs to the technical field of internal combustion engine ignition, and in particular relates to a gasoline engine CDI direct current ignition circuit. Background technique [0002] The igniter should fire the engine at the right time and with the right amount of energy. The development of CDI ignition circuit has gone through three generations. The first generation of AC charging plus mechanical control of the advance angle, the second generation of AC or DC charging plus circuit control of the advance angle, and the third generation uses a single-chip microcomputer to make the control of the advance angle more accurate, and it can be accurately controlled. The advance angle is the ignition timing and improves the ignition energy balance. The ignition energy comes from the energy storage circuit, which is mainly a capacitor, and the voltage of the energy storage circuit or the energy storage voltage refers to the voltage of the capaci...

Claims

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Application Information

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IPC IPC(8): F02P9/00
CPCF02P9/00F02P9/002
Inventor 曹杨庆
Owner 曹杨庆
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