ISO 23274-1:2013
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A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hybrid-electric road vehicles Exhaust emissions and fuel consumption measurements Part 1: Non-externally chargeable vehicles
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31-08-2019
English
08-01-2013
ISO 23274-1:2013 specifies a chassis dynamometer test procedure to measure the exhaust emissions and the electric energy and fuel consumption for the vehicles.
It applies to vehicles with the following characteristics:
- the vehicle is classified as passenger cars or light duty trucks, as defined in each regional annex;
- the nominal energy of the rechargeable energy storage system (RESS) is at least 2 % of the total energy consumption over an applicable driving test (ADT);
- internal combustion engine (ICE) only using liquid fuels (for example, gasoline and diesel fuel).
In the case of vehicles with ICE using other fuel [for example, compressed natural gas (CNG), liquefied petroleum gas (LPG), hydrogen], this part of ISO 23274 can apply except the measurement of consumed fuel; otherwise the measurement method for those using the corresponding fuel can apply.
ISO 23274-1:2013 proposes procedures for correcting the measured emissions and fuel consumption of hybrid electric vehicles (HEVs), in order to obtain the values when the battery state of charge (SOC) of the RESS does not remain the same between the beginning and the end of an ADT.
It can also be applied to measurement procedures for exhaust emissions and fuel consumption of externally chargeable HEVs when a vehicle is not externally charged and operated only in the charge sustaining (CS) state, as described in ISO 23274-2.
For CS state, see ISO 23274-2.
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