Full-parameter adjustable direct injection fuel injector driver

A driver and injector technology, applied in the direction of machine/engine, engine control, fuel injection control, etc., can solve the problems of slow development response, high price, inconvenient use by testers, etc., and achieve simple control interface, low cost, Ease of use

Pending Publication Date: 2020-10-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, fully adjustable fuel injector drivers still rely on imports, which are expensive; most fuel injector drivers do not have a pre-magnetization process, and the development response is slow; fully parameter adjustable fuel injector drivers are complicated to set, and testers use them inconvenient

Method used

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  • Full-parameter adjustable direct injection fuel injector driver
  • Full-parameter adjustable direct injection fuel injector driver
  • Full-parameter adjustable direct injection fuel injector driver

Examples

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Embodiment Construction

[0023] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0024] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0025] The fuel injector driver with fully adjustable parameters is used to drive the electromagnetic high-pressure injection injec...

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PUM

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Abstract

The invention discloses a full-parameter adjustable direct injection fuel injector driver and relates to the field of fuel injector drivers. The full-parameter adjustable direct injection fuel injector driver comprises a hardware part and a software part, wherein the software part comprises a power supply module, a logic control module, a control module and a current detection module; the power supply module can stabilize voltage and increase the voltage to 20-120 V; the logic control module can control current and finish pre-magnetization, opening, reaching a peak value, maintaining and closing operations of a direct injection fuel injector; the control module can control the voltage rising value of the power supply module, and the logic control module can control the current value and the switch tube state of a circuit; and the current detection module can detect the value of the current of the control module and feed back to the control module. The full-parameter adjustable direct injection fuel injector driver is low in cost, flexible in parameter configuration, simple in control interface and convenient for testers to use.

Description

technical field [0001] The invention relates to the field of fuel injector drivers, in particular to a fully parameter-adjustable direct injection fuel injector driver. Background technique [0002] The fuel injector is the core component of the engine control system, and the function of the fuel injector driver is to precisely control the fuel injector to ensure accurate fuel injection timing, fuel injection volume and fuel injection rate. The driving process of the current high-pressure injector driver includes an opening phase, a peak and hold phase, and a closing phase. At the same time, in order to be able to speed up the opening process, some injector drivers have a pre-magnetization phase. In addition, in order to quickly shut down, the fuel injection driver is equipped with a negative voltage accelerated shutdown function. In order to avoid faults such as short circuit and open circuit of the solenoid valve coil, the general fuel injection driver is also equipped w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/20F02D41/26F02D41/30
CPCF02D41/20F02D41/26F02D41/30F02D2041/2044F02D2041/2051F02D2041/2055F02D2041/2058F02D2041/2086
Inventor 许敏李雪松叶昌徐宏昌胥浩天
Owner SHANGHAI JIAO TONG UNIV
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