Angle error compensation in wheel force transducer

Abstract Wheel force transducers (WFTs) have performance characteristics that make them attractive for applications in endurance evaluation of road vehicles, ride and handling optimization, tire development and vehicle dynamics. Since the WFT is mounted on the wheel and rotates with it, the rotational angle of the wheel is indispensable to calculate the real wheel forces. Unfortunately, an angle error caused by the steering of the vehicle will be incorporated into the measurement of the rotational angle, resulting in great error in the wheel force calculation. A new compensation algorithm is proposed in this paper to eliminate this angle error. In this algorithm, the GPS speed has been introduced to modify the measurement of the rotational angle in real time. Simulations with designed vehicle movement are carried out to demonstrate the effectiveness of the compensation algorithm. Furthermore, the results of real vehicle test show that this algorithm can be successfully used in practice to get more reasonable wheel loads.

[1]  A. Vigliani,et al.  An ABS control logic based on wheel force measurement , 2012 .

[2]  Sankarganesh Padmanaban,et al.  Estimation of Tire Friction Potential Characteristics by Slip Based On-Road Test Using WFT , 2015 .

[3]  Thomas Hofmann,et al.  EVALUATION OF DIFFERENT DESIGNS OF WHEEL FORCE TRANSDUCERS , 1998 .

[4]  Shawn You.  Effect of Added Mass of Spindle Wheel Force Transducer on Vehicle Dynamic Response , 2012 .

[5]  Prashant R. Pawar,et al.  Generation of India Specific Vehicle Wheel Load Spectrum and its Applications for Vehicle Development , 2013 .

[6]  Xiaolong Zhang,et al.  Effect of Wheel Force Transducer’s Mass on Measurement Precision and Whole Vehicle Stability , 2012 .

[7]  J. Fredriksson,et al.  Wheel force distribution for improved handling in a hybrid electric vehicle using nonlinear control , 2004, 2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601).

[8]  Wolfgang Mayer,et al.  Dynamic Wheel Load Measurements on Real Road Surfaces - What Accuracy to Expect? , 2001 .

[9]  Baird Wallace,et al.  A Triaxial Automotive Wheel Force and Moment Transducer , 1975 .

[10]  Daniel M. Vogt,et al.  Design and Characterization of a Soft Multi-Axis Force Sensor Using Embedded Microfluidic Channels , 2013, IEEE Sensors Journal.

[11]  Kyongsu Yi,et al.  Estimation of Tire Forces for Application to Vehicle Stability Control , 2010, IEEE Transactions on Vehicular Technology.

[12]  Mehdi Mirzaei,et al.  A new approach for modelling and control of two-wheel anti-lock brake systems , 2011 .

[13]  Weigong Zhang,et al.  Design of real-time filter for the wheel force transducer , 2015 .

[14]  Jodi L. Sommerfeld,et al.  Correlation and Accuracy of a Wheel Force Transducer as Developed and Tested on a Flat-Trac® Tire Test System , 1999 .

[15]  Hans Kockelmann,et al.  Evaluation of Different Designs of Wheel Force Transducers (Part II) , 1999 .

[16]  Jun Zhang,et al.  Dynamic characteristics of piezoelectric six-dimensional heavy force/moment sensor for large-load robotic manipulator , 2012 .

[17]  Weigong Zhang,et al.  The new method of initial calibration with the wheel force transducer , 2014 .

[18]  Chao Guan,et al.  Study on Load Spectrum Correlation between Service Roads and Proving Ground Roads Based on Spindle Wheel Forces , 2012 .

[19]  Jeffrey Barber,et al.  An Evaluation of the Mechanical Properties of Wheel Force Sensors and Their Impact on to the Data Collected During Different Driving Manoeuvres , 2005 .