Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Calibration device and method for engine command and control compatibility tester

An engine and matching technology, applied in program control, general control system, electrical testing/monitoring, etc., can solve the problems of high system cost, uncertain time parameters and their changes, etc.

Inactive Publication Date: 2017-12-26
西安航天计量测试研究所
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of high system cost and uncertainty of each time parameter in the actual current waveform and its variation in the calibration of the existing engine command and control matching tester, the present invention provides an engine command and control matching tester Calibration device and calibration method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibration device and method for engine command and control compatibility tester
  • Calibration device and method for engine command and control compatibility tester
  • Calibration device and method for engine command and control compatibility tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0074] Such as Figure 5 As shown, the engine command and control matching tester calibration device includes a microprocessor, multiple data latches, multiple memories, digital-to-analog converters, filters, voltage-current converters, communication interfaces, crystal oscillator circuits, two Frequency division circuit, data selector, binary counter, decoder. The microprocessor unit is connected with the measurement and control computer through a communication interface. The microprocessor unit includes key input and digital display parts. The data bus of the microprocessor unit is connected with the data input end of the data latch, and the 2n bit address chip selection signal generated by the address bus is connected with the latch enabling signal CP of the data latch. 1 ~CP 2n The four IO lines are respectively connected to the selection control signal S ter...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a calibration device and method of an engine instruction and control matching performance tester. The calibration device comprises a microprocessor, a data selector, a frequency-halving circuit, a crystal oscillation circuit, a binary counter, a decoder and n calibration channels; and each calibration channel comprises a data latch register, a memory, a digital-analog converter, a filter and a voltage-current converter. According to the invention, the technical problems that a present engine instruction and control matching performance tester is high in system cost and different time parameters and variable thereof in practical current waveform are uncertain are solved; and multiple parameters of the calibration device can be set, so that the calibration device can be used to calibrate devices with different parameter requirements, and can be applied to calibration of the calibrated devices under different working conditions.

Description

technical field [0001] The invention relates to a calibration method of a special test instrument for an engine, in particular to a calibration method and a device for an engine command and control matching test instrument. The calibration method of the engine command and control matching tester has high accuracy, the calibration device has simple structure, low cost and reliable performance. Background technique [0002] The engine command and control matching tester is a special test instrument for the engine, which is used to test the closing and opening time and working sequence of each solenoid valve action after the electrical signal command is issued in the engine. Its basic working principle is as figure 1 shown. figure 1 Among them, the engine control unit generates a set of voltage square waves according to the control program. During the high-level period of the voltage square wave, a driving current is generated by the solenoid valve drive unit, which flows th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0243G05B2219/25055
Inventor 孙新新常莹张周焕杜栓才
Owner 西安航天计量测试研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com