Quote:
Originally Posted by P1 Motorcars
Is there such a thing as a member state which doesn't grant EC type approval? What happens when a vehicle fails to gain certification because it doesn't pass section 8.1 during testing? Does that mean that car can't be sold in the EU? I still have my doubts.
Once again, I'm going to mention the irony of others arguing against SAE/EEC weather correction formulas while at the same time arguing for the inviolate law of EEC regulations whose enforcement depends on the accuracy of these same weather correction formulas.
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As of july 2014, the engine power is to be measured according to ECE regulation 85 (UN). Only minor differences, but basiacally even the same wording as in the EU directive on most paragraphs.
http://www.unece.org/fileadmin/DAM/t...regs/r085e.pdf
This is how evaluation of results under conformity of production testing is described here:
Quote:
5. EVALUATION OF RESULTS
5.1. If the net power of the engine tested pursuant to paragraph 2 above
fulfils the requirement of paragraph 4 above, the production is
considered to conform to the type approval.
5.2. If the requirements of paragraph 4 above are not fulfilled two more
engines are tested in the· same way.
5.3. If the net power figure of the second and/or third engine of
paragraph 5.2 does not fulfil the requirements of paragraph 4 above, the
production shall be considered not to conform to the requirernents of
this Regulation and the provisions of paragraph 7.1 shall be put into
effect.
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ECE Reg 85 has been amended 5 times, here is the last amendment:
http://www.unece.org/fileadmin/DAM/t...gs/r085a5e.pdf
Pretty detailed info on the engine to be tested...
And, in the EU regulation (136/2014) that now refers engine power to be according to ECE Reg 85 there is also a provision for engines like the S55:
http://eur-lex.europa.eu/legal-conte...4R0136&from=EN
Quote:
2.3 Power correction factors
By way of derogation from paragraph 5.1 of Annex V to UNECE Regulation No 85, when a turbo-charged engine is fitted with a system which allows compensating the ambient conditions temperature and altitude, at the request of the manufacturer, the correction factors α a or α d shall be set to the value of 1.
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This basically confirms that such a engine should have a correction factor of 1 (if requested by the manufacturer). As we suspected, a SAE/ECE correction on this kind of engine is a "double dipping". The engine self corrects and shouldn't have a correction factor applied.
This is also now acknowledged in legislation on engine power and correction factors. So the regulators don't necessarily use correction factors anymore. Taking one more inaccuracy out of the equation...
