Objective Driveability: Integration of Vehicle Behavior and Subjective Feeling into Objective Assessments

Isa Yassir Arafat Machmudi Isa; Mohd Azman Zainul Abidin; Shuhaimi Mansor

doi:10.15282/jmes.6.2014.6.0076

Authors

Isa Yassir Arafat Machmudi Isa Homologation and Testing, Engineering Division, PROTON, 40918 Shah Alam, Selangor, Malaysia
Mohd Azman Zainul Abidin Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
Shuhaimi Mansor Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia

DOI:

https://doi.org/10.15282/jmes.6.2014.6.0076

Keywords:

Drivability; subjective rating; longitudinal acceleration; objective drivability assessment.

Abstract

Vehicle drivability is defined as the smoothness of a vehicle’s operation at the will of a driver under all driving conditions. Currently, drivability evaluation is conducted through a subjective ratings-based test standard which is derived from established procedures. Human subjective rating can be inconsistent due to physical health conditions and individual preferences. This study is conducted to determine the possibility of using longitudinal acceleration to arrange an objective drivability assessment. Vehicle evaluation is conducted to determine the subjective vehicle drivability ratings of four drivability expert evaluators. A test vehicle was evaluated under different acceleration conditions to determine a subjective drivability rating. Vehicle low speed passing acceleration during pedal tip in is measured. A relationship between low speed passing acceleration and subjective drivability rating is established. An objective drivability assessment tool is successfully arranged using this relationship. A drivability rating can be generated using the tools, without the need for subjective evaluation by expert evaluators.

References

REFERENCES

AVL List. (2000). Drivability simulation in the continuous development process. In A. L. GmbH (Ed.). Graz.

Cross, J. F., Thirard, C., Antoine, T., & Dolcini, P. (2010). Wide BRIO benchmark and objective rating of the acceleration feeling. Automotive and railway comfort, 8.

Doray, R. E., & Martin, E. J. (2000). Vehicle drivability – the development of an objective methodology. Paper presented at the 2000 World Congress, Michigan.

Dorey, R. E., & Holmes, C. B. (1999). Vehicle driveability-its characterisation and measurement: SAE Technical Paper.

Neculita, C.-M., Zagury, G. J., & Bussière, B. (2007). Passive Treatment of Acid Mine Drainage in Bioreactors using Sulfate-Reducing Bacteria. J. Environ. Qual., 36(1), 1-16. doi: 10.2134/jeq2006.0066

Palumbo, G., Amante, F., & Andrea Ugo, A. (May 2007). Drive away quality – testing procedure for manual transmission based upon experimental analysis of customer driving. Paper presented at the Engine Expo, Turin.

Proton, P. O. N. S. B. (2009). Vehicle drivability evaluation test procedure 07-11-09/A/3-00004939. Shah Alam.

SAE. (1993). Cold start and drivability procedure (Vol. J1635): Society of Automotive Engineers.

Schoeggl, P., & Ramschak, E. (2000). Vehicle driveability assessment using neural networks for development, calibration and quality tests: SAE Technical Paper.

Schöggl, P., Koegeler, H. M., Gschweitl, K., Kokal, H., Williams, P., & Hulak, K. (2002). Automated EMS calibration using objective driveability assessment and computer aided optimization methods: SAE Technical Paper.

Yassir, I. A. (2008). Project Eagle development cold climate test report. Unpublished Note.