Dissertation > Excellent graduate degree dissertation topics show

Research and Development of a Portable Road Friction Coefficient Tester

Author: CiQiang
Tutor: ChenTao
School: Chang'an University
Course: Vehicle Engineering
Keywords: Traffic Accidents Road surface friction coefficient Microcontrollers Accelerometer
CLC: U416.2
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
Read: Download Dissertation

Abstract


The road surface friction coefficient as one of the important parameters of the accident the vehicle speed is calculated in a road traffic accident analysis , much of the attention of people . In order to facilitate the measurement of the road surface friction coefficient , by analyzing the variation of the braking deceleration of the car in an emergency braking process , and learn the method of calculation of the mean braking deceleration sufficiently given , using the relationship between the development of the road surface friction coefficient and the brake deceleration a portable friction coefficient tester for measuring road surface friction coefficient . Selection ATmega16L microcontroller , the MMA7260QT acceleration sensor , LCD display and independent key design development of the road surface friction coefficient tester hardware system , including : data acquisition module and display module and button control module . The acquisition system is capable of outputting a braking force growth time ts , the road surface friction coefficient u , the the automotive brake mean fully deceleration value MFDD , real-time braking deceleration values ??areal . Hardware system structures completed based on the software part of the design of the entire system , mainly include : the PC machine data processing software and ATmega16L microcontroller control program . PC program using VC 6.0 programming , its main data reception , data retention and data display functions ; the on ATmega16L microprocessor control program using C language in ICCAVR development platform and AVR Studio written mainly include : data collection routines , data display routines on ATmega16L SCM and PC communications subroutine and button control to the subroutine . After the completion of the system design , its functional test . The test system with multi-channel data acquisition system , and the acceleration sensor test equipment braking experiment were carried out on the asphalt pavement . The experimental results show that the use of the the brake deceleration method and be able to learn from the fully issued braking deceleration measuring road surface friction coefficient , and verify the reliability and accuracy of the system .

Related Dissertations

  1. Study on Temperature Field and Residual Stress Model Research of MEMS Accelerometer,TH824.4
  2. Design of Inertial Navigation System Attitude Information Correction,TN966
  3. Six -axis micro- accelerometer electrostatic levitation design and system -level simulation,TH824.4
  4. ENC28J60 -based embedded network design and implementation service terminal,TP393.05
  5. Nano- film polycrystalline structure of the acceleration sensor,TP212
  6. A novel silicon micro- accelerometer design and manufacturing process research,TH824.4
  7. The Reseach on the Tracking and Collision Avoidance Control System of the Smart Cars Based on Image Recognition,TP242.6
  8. Research on Temperature Modeling and Compensating of Ring Laser Gyroscope Strapdown Inertial Navigation System,V241.5
  9. Research on the Method of Traffic Accident Fast Reconstruction,U491.31
  10. Reaserch on Vehicle Rollover Warning System,U463.653
  11. Study on Impact Model in Two-Dimension Accidents on Gradient Road,U467.14
  12. System Stability Analysis of the Closed-loop Microaccelerometer from Interface Circuit,TH824.4
  13. ASIC Design Based on Continuous-time Feedback for Closed-loop Micro-acceleromenter,TH824.4
  14. Analyses of A Novel Grid Strip Biaxial MEMS Inertial Sensor,TH824.4
  15. Characteristic Test of Micro Accelerometer Based on GaAs-PHEMT Structure,TH824.4
  16. Design and Manufacture of Temperature Acquisition System of Tire Based on Wireless Communication,TP274.2
  17. MEMS-based acceleration sensor watermelon maturity NDT system design,TP274
  18. Study on High Precision Acceleration for Inertial Navigation System in Deep Sea,TH824.4
  19. MREs Preparation and vibration damping applications in automotive simulation and experimental study,TB381
  20. Six -axis micro- accelerometer electrostatic levitation control system,TH824.4

CLC: > Transportation > Road transport > Road works > Roadbed, pavement engineering > Pavement Engineering
© 2012 www.DissertationTopic.Net  Mobile