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Certification of Buses as per AIS-031/ ECE-R66 Using CAE Methods
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 21, 2009 by The Automotive Research Association of India in India
Annotation ability available
Event: SIAT 2009
Bus is one of the major modes of mass public transport in India. Rollover accidents are a major concern for passenger safety in buses. Considering social and economical impact, AIS-031 regulation is being implemented in India from October 2008, which is equivalent to ECE-R66, specifying requirement of strength of superstructure of buses during rollover.
The AIS 031 standard specifies four different methods viz. roll over test on a complete vehicle, roll over test on a body section, pendulum test on a body section and verification of strength of superstructure by calculation. Each method has its own advantages and disadvantages. Application of the standard also needs engineering evaluation of various aspects such as determination of a vehicle family and worst case among that family, which side to rollover, etc. The first revision of ECE-R66 has become effective from February 2006. This revision, though does not affect the requirements, provides more details about the procedures and improves clarity.
As there have been no legal requirements on bus body building in India, there are plethora of designs and variants of the same design in the country. This makes it difficult both for the manufacturers as well as the testing agencies to decide the family concepts and arrive at the worst case. This paper addresses these issues and discusses suitability of the four methods and their practical implementation vis-à-vis ECE-R66-01 - by both computer simulation and physical testing. Issues involved in the validation of the computer simulation by physical testing are also addressed.
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- S. E. Chopade, - The Automotive Research Association of India, India
- R. S. Mahajan, - The Automotive Research Association of India, India
- S. Raju, - The Automotive Research Association of India, India
- Samir Joshi, - Tata Motors Ltd., India
- C. P. Mishra, - Tata Motors Ltd., India
- Ajay Chavare - Tata Motors Ltd., India
CitationChopade,, S., Mahajan,, R., Raju,, S., Joshi,, S. et al., "Certification of Buses as per AIS-031/ ECE-R66 Using CAE Methods," SAE Technical Paper 2009-26-0001, 2009, https://doi.org/10.4271/2009-26-0001.
- AIS 031 “Automotive Vehicles - The Strength of Superstructure of Large Passenger Vehicles” September 2008
- ECE R66-01 “Large Passenger Vehicles with regard to the Strength of their Superstructure” February 2006
- Enhanced Coach and Bus Occupant Safety (ECBOS) Final Publishable Report, Project N°: 1999-RD.11130, European Commission 5th Framework 2003
- Elitok, K., et al. “An Investigation of the Rollover Crashworthiness of an Intercity Coach, Influence of Seat Structure and Passenger Weight” 9 th International Ls-Dyna Users Conference 2006 Dearborn, MI, USA
- Deshmukh, P. “Rollover and Roof Crush Analysis of Low-Floor Mass Transit Bus” MS thesis,” Wichita State University 2006
- Informal document No. 11, 79 th GRSG 16–20 October 2000
- ISO 10392 1992 “Road Vehicles with Two Axles Determination of Centre of Gravity”