Quote:
Originally Posted by fiat_tarun The only 2 airbags theory does not sound right, since the current GNCAP India test protocol is the most basic and only tests for frontal offset and if the vehicle is eligible for a 5 star rating, then a side crash is also required for the final certification. From June 2022 onwards, things like ESP, side airbags, etc. will be required for 4 stars and above. |
I think the missing knee airbag might be the problem; the prediction might have to do with the modifiers for variable contact and concentrated loading for the knees. The modifiers are applied if there is a potential risk of knee injury when the knee impact area is slightly different to that observed in the ODB test (since the dummy positioning for the ODB test is based on very specific test protocol and real-world accidents may show knee impact at different positions on the fascia, some of which have dangerous underlying structures).
If these modifiers are applied, manufacturers may sponsor a generic-pulse kneemapping sled test to assess injury to the knees where the BIW is accelerated on a sled using a specified pulse (developed by EuroNCAP*) at such a yaw angle that will allow the knees to contact the potential hard point identified by testers in the fascia. Injury to the knees in these positions is assessed and if the test criteria are met the modifier(s) may be removed. Tata seems to have sponsored such a test on the Nexon to have the knee modifiers removed which explains how the ODB test score increased by +2.00 without a repeat ODB test.
For the XUV700 a possibility is that the identified potential hard point in the fascia might not be able to prevent hard contact with the knees in the knee mapping generic-pulse sled test.
Or, possibly, they're expecting either a passenger compartment integrity or footwell rupture modifier to be applied (which might be explained by the rumours about intrusion), which might prevent them from submitting knee mapping data from the generic-pulse sled test. With -1.00 point for either of the two structural modifiers and either -1.00 or -2.00 for variable contact or concentrated loading or both, achieving 5 stars will be hard (a loss of 3.00 points would make it theoretically impossible to score 5 stars, a loss of 2.00 points would make it extremely hard as it would require near-perfect scores for all other regions). Contrary to popular belief on this forum it is theoretically possible to score 5 stars with a passenger compartment integrity modifier or footwell rupture modifier applied, though it's very hard because of issues like this (since application of those modifiers consequently prevents the knee modifiers from being removed which results in a further reduction in points, like the Thar's unstable footwell which prevented the knee modifiers from being removed).
Whenever the passenger compartment integrity modifier ("The bodyshell was deemed to be unstable and incapable of withstanding further loadings") or the footwell rupture modifier ("Footwell area was rated as unstable") is applied Global NCAP will not accept kneemapping sled test data and the knee modifiers may not be removed**.
P. S. From
July 2022 optional ESC is a requirement for
3 stars and above. For 4 and 5 stars it must meet a fitment rate along with some future commitments. Side (torso) airbags are not a requirement anywhere since it is possible to score a full 16.00 on side impact without them as has been proved in past LatinNCAP tests. Head protection airbags however are a requirement for 4 stars and 5 stars with different fitment rates (and for 3 stars for 2024-25) (there's a detailed table). Head protection airbags can either mean curtain airbags or seat-mounted combination torso-head airbags (like the Latin market Mk6 Volkswagen Polo). Hence, unless you count curtain airbags as side airbags, side airbags aren't really a requirement, which might explain why Mahindra has equipped some trims with curtain airbags but not side airbags (for most other models, like the basic Honda City or the penultimate trim levels of the MG Hector and Astor, it's the opposite).
Quote:
Originally Posted by ram87pune Thanks for clarifying buddy.
But I don't agree with the point about the dilution of the process if we consider the classic case of the Fiat 2.0 Multijet engine.
Now we all know that this engine does duty in a wide variety of cars from different manufacturers like Alfa Romeo,Jeep,Lancia,Fiat,Tata and MG etc. If you see the NCAP tests conducted on any car which comes mated to this particular engine, you will find an interesting fact that all the said cars which have been tested at NCAP are in LHD configuration. This is because of the inherent issue with the oil filter intrusion which I had mentioned in the Harrier thread here https://www.team-bhp.com/forum/offic...-review-7.html (2020 Tata Harrier Automatic : Official Review)
So this is the reason that Tata will never be able to send the Harrier twins in their diesel avatars to NCAP for testing and they will wait till they develop a new engine for the Omega platform and then get these two SUVs crash tested. Because of this I don't believe that manufacturers have no say in deciding as to which variant they want to send for crash test. Yes they need to provide the base variant as you have rightly pointed out but they can exploit the loophole in NCAPs "LHD/RHD or Petrol/Diesel are the same" philosophy. |
I didn't think manufacturers could actually request the NCAP in question to test a given fuel type since a car specified with basic safety equipment is supposedly picked by the NCAP from the distribution area from a list of VINs provided by the manufacturer. Whether this list can be influenced to include only a specific fuel type is not something I'm sure of. Based on the fact that no manufacturer has ever had a right-hand drive car with a 2L MultiJet tested (credit to BHPian rpm's
extremely detailed post (The 2nd-gen Mahindra XUV500, coming in Q3-2021)), it sure seems possible that manufacturers have found some sort of a workaround.
*
European New Car Assessment Programme - Sled Test Procedure for Assessing Knee Impact Areas - Version 2.7 - Appendix I
**
Global New Car Assessment Programme - Assessment Protocol (Adult Occupant) - Version 1.0 (August 2017 revision) - 3.2.1.3 Knee, Femur & Pelvis - Removal of Knee Modifiers