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High speed electromagnet load simulator

A high-speed electromagnet and load simulation technology, applied in the direction of electromagnets with armatures, electromagnets, measuring devices, etc., can solve the problems of high cost, large demand, and large space occupation, and achieve low cost, small size, and structure simple effect

Inactive Publication Date: 2012-04-25
镇江恒驰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the design and aging test of the electronic control unit ECU, it is necessary to carry out the test with the actual solenoid valve as the load, and the moving valve of this type of high-speed fuel injection solenoid valve works in diesel oil and is lubricated by diesel oil. Controlled diesel engine fuel injection system is moved into the electronic laboratory or ECU aging test room, which takes up a lot of space and costs a lot, especially in the aging test room, where the demand is large, and the cost factor is worth considering

Method used

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  • High speed electromagnet load simulator
  • High speed electromagnet load simulator
  • High speed electromagnet load simulator

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0097] attached figure 1As shown, the fixed value inductor (2) is fixed on the metal base plate (1) through the screw (6), and the power resistor (3) is fixed on the metal base plate (1) through the screw (4) and the fixing splint (5). The inductor (2) is connected in series with the power resistor (3).

[0098] Illustrate implementation method by preferred example below.

[0099] a. Determination of resistance value and power of power resistor

[0100] According to the maximum value I of the actual current curve of the electromagnet w and the voltage U used to determine the resistance value of the power resistor, the resistance value of the power resistor should be R'=U / I w -R, where R is the loop resistance (except R'), and the resistance value of the power resistor can be appropriately smaller than R' according to specific needs, so that the peak current can be controlled by pwm through software. According to the current and duty cycle of the electromagnet, calculate t...

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Abstract

The invention relates to a high speed electromagnet load simulator, belonging to the engine field and consisting of series connection of a fixed value induction coil and a power resistor so as to simulate electrical properties of an electromagnet which is rotating at high speed. The invention reasonably selects inductance of an inductor and a resistance value of a resistor, the inductor simulatesdynamic time behaviors of the electromagnet, and the resistor consumes drive electric energy to play a load function, so that a load loop consisting of the inductor and the resistor has drive currentproperties extremely approaching to that of the electromagnet. The invention can serve as a simulation load to replace a fuel ejection electromagnet to carry out tests of various electronic control units and also can be used for other occasions of simulating the power electromagnet load.

Description

technical field [0001] The invention belongs to the field of engines, and is a device for simulating the load characteristics of an electromagnet driven by an electronically controlled fuel injection high-speed electromagnetic valve of a diesel engine. Background technique [0002] The electromagnet is an important executive component that is widely used in the field of automotive electronic control. The high-speed fuel injection valve driven by the electromagnet is a key component of the electronically controlled diesel engine. In the design and aging test of the electronic control unit ECU, it is necessary to carry out the test with the actual solenoid valve as the load, and the moving valve of this type of high-speed fuel injection solenoid valve works in diesel oil and is lubricated by diesel oil. Controlled diesel engine fuel injection system is moved into the electronic laboratory or ECU aging test room, which takes up a lot of space and costs a lot. Especially in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/18H01F7/06F02M65/00
Inventor 张育华侯留业
Owner 镇江恒驰科技有限公司