scholarly journals Design of Control Unit of Mechanical Property Test System of Tai Lake Shield

2021 ◽  
Vol 692 (4) ◽  
pp. 042105
Author(s):  
Yunxian Weng ◽  
Yaping Zhao ◽  
Xuewen Ni
Keyword(s):  
Mechanical Property ◽  
Control Unit ◽  
Test System ◽  
Tai Lake

Design of an Intelligent Multi-Gyro Measurement Device

2005 ◽  
Vol 295-296 ◽  
pp. 589-594
Author(s):  
J.P. Wang ◽  
W. Zhou ◽  
W.F. Tian ◽  
Z.H. Jin
Keyword(s):  
High Speed ◽  
Dynamic Balance ◽  
Control Unit ◽  
Calibration Method ◽  
Test System ◽  
Measurement Device ◽  
Logic Control ◽  
Hardware Description ◽  
Thermal Resistors ◽  
Inertial Unit

This paper describes the design of an intelligent multi-gyro measurement device to measure and monitor an inertial unit composed of three dynamically tuned gyros (DTGs). A 16-bit microprogrammed control unit is programmed to fulfill the functions of signal processing, logic control and serial communication with a master computer. An FPGA, designed by using Verilog Hardware Description Language, is used to realize high speed 16-bit reversible counters for output pulses of the DTG digital dynamic balance circuits. The count values represent the angular motion of the inertial unit. A stepping electric bridge is employed to measure the resistance of thermal resistors within the gyros in a wide temperature environment. The resistance represents the working temperature of the gyros. An effective calibration method for the bridge is developed to eliminate the resistance measurement error. A test system is established to examine whether the device meets the user requirements. Results of the tests show that the device has a good performance. A trial use has proved that the device is stable and reliable and that it satisfies the demand of the user.

Test System for Mechanical Property of Geotextile Material Based on PCI-1714

2012 ◽  
Vol 455-456 ◽  
pp. 217-221
Author(s):  
Zhi Gang Liu ◽  
Qi Xiao Sun
Keyword(s):  
Mechanical Property ◽  
Data Acquisition ◽  
High Speed ◽  
Test System ◽  
Overall Design ◽  
Data Acquisition Software ◽  
Mechanics Performance ◽  
Data Acquisition Card ◽  
High Speed Data Acquisition ◽  
High Speed Data

A solution of intelligent test system for mechanical property of geotextile material which based on high speed data acquisition card PCI-1714 is introduced in this paper. Microprocessor and drive card PCI-1240 are also used to control and drive the test equipment. The article discussed in detail the system’s overall design, the hardware structure, software design, and process of data acquisition. Software is designed by Visual Basic 6.0. This paper research and implement on accurate measurement of mechanics performance of geotextile material.

A New Hardware-in-the-Loop Test System for Electronic Control Unit of Dual-Clutch Transmission Vehicle

2012 ◽  
Vol 490-495 ◽  
pp. 13-18 ◽  
Author(s):  
Ran Chen ◽  
Lin Mi ◽  
Wei Tan
Keyword(s):  
Numerical Simulation ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Test System ◽  
Testing System ◽  
Primary Concern ◽  
Hardware In The Loop ◽  
Electronic Control ◽  
Simulation Environment ◽  
Dual Clutch Transmission

Hardware-in-the-loop simulation (HILS) is a scheme that incorporates some hardware components of primary concern in the numerical simulation environment. This paper discusses the implementation and benefits of using the HIL testing system for electronic control unit of dual-clutch transmission (DCT) vehicle.

Study on Key Technology of High and Low Temperature Test System for Flight Control Unit

2014 ◽  
Vol 538 ◽  
pp. 402-407
Author(s):  
Qiang Zhou ◽  
Bin Bin Hong
Keyword(s):  
Low Temperature ◽  
Flight Control ◽  
Control Unit ◽  
Test System ◽  
Engineering Practice ◽  
Testing Time ◽  
Serial Test ◽  
Test Efficiency ◽  
Signal Switching ◽  
Temperature Test

According to the engineering requirements of multiple sets of Flight control unit in high and low temperature test, a new test system based on CPCI bus with a signal switching and distribution unit is designed to increase test efficiency. This test system can switch serial test under programming control for multiple sets of flight control unit in a certain temperature gradient, saving the time of temperature change and staying warm, eliminating a lot of tedious manual operations. Theoretical analysis and engineering practice has proved that this test system significantly reduces the testing time in high and low temperature test up to thirty hours (five sets of DUT), namely that relative time efficiency is up to 75.4% (five sets of DUT). It also has some other advantages such as saving hardware resources and flexible use.

Design and Development of Test and Control System for Hydraulic Steering Control Unit Based on Virtual Instrument

2014 ◽  
Vol 490-491 ◽  
pp. 1092-1096
Author(s):  
Qian Qian Lu ◽  
Jian Hua Wei ◽  
Jian Ruan
Keyword(s):  
Data Acquisition ◽  
Error Detection ◽  
Virtual Instrument ◽  
Control Unit ◽  
Test System ◽  
False Alarms ◽  
Test Accuracy ◽  
Steering Control ◽  
Method Error ◽  
Hydraulic Steering

A system combined the function of Industrial Computer, PLC, virtual instruments, sensors and data acquisition was designed and developed for testing and controlling of hydraulic steering control unit, which can achieve automated data acquisition, data processing, test results judgment, false alarms and etc. with the development of computer and science. The software of test system was designed through LabVIEW, and by using module design method, error detection, modify and maintenance of the software turn to be simple and the software become more robust. The system also adopted shielding and filtering with combination of hardware and software to improve test accuracy which reduces test error caused by operators and improve test efficiency.

The Design and Development of a Temperature Testing System in an Electric Fuel Injection Engine

2012 ◽  
Vol 546-547 ◽  
pp. 811-816
Author(s):  
Qiang Li ◽  
Xu Xu Dong
Keyword(s):  
Data Processing ◽  
Temperature Sensor ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Test System ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Processing Unit ◽  
Temperature Test

In order to achieve the best engine performance, electronic control unit needs to be provided a different fuel injection and ignition timing corresponding to different engine temperature while in other conditions the parameters is the same, so the temperature of the engine cylinder plays an important role. In this paper, the C8051F020 is used as the main control unit MCU and the data processing unit. The cylinder temperature signal is detected by thermistor temperature sensor and at the same time A/D conversion and data processing are completed. The acquisition temperature values are sent to LED display, while achieving ultra-high temperature alarm and ultra-low temperature alarm. This paper introduced the hardware design of temperature acquisition system, in this section this paper focuses on the choice of the temperature sensor, micro-controller selection and the design of temperature acquisition circuit and temperature display circuit. This paper introduces the software design of the temperature test system. Based on the understanding to C8051F020 MCU, with a micro-controller language this paper assembled a software program of temperature test system including the signal acquisition, A/D conversion and temperature display. This paper also designed a simple structure and processing the data speed of the temperature acquisition system.

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