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  • BSI
    20/30402131 DC BS ISO 23274-2. Hybrid-electric road vehicles. Exhaust emissions and fuel consumption measurements - Part 2. Externally chargeable vehicles
    Edition: 2020
    $44.66
    / user per year

Description of 20/30402131 DC 2020

This document specifies a chassis dynamometer test procedure to determine the end of CD (charge-depleting) state and consumed electric energy during CD state.

The identification of the end of CD state is an important step for procedures to determine exhaust emissions and fuel consumption. Final determination of exhaust emissions and fuel consumption is not included in this document.

This document applies to vehicles with the following characteristics.

  1. The vehicles are hybrid-electric road vehicles (HEV) with an internal combustion engine (ICE) and an on-board rechargeable energy storage system (RESS) for vehicle propulsion which is supplied with electric energy from an external electric power source.

  2. A CD state, in which the electric energy in the RESS from an external electric power source is consumed, is followed by a CS (charge-sustaining) state in which the fuel energy is consumed sustaining the electric energy of the RESS.

  3. Only batteries are assumed as the RESS of a vehicle.

  4. The RESS is not charged while driving unless by regenerative braking and/or by generative operation driven via the ICE.

  5. External charge for the purpose of conditioning of the RESS is not included.

    NOTE 1

    Trolleybuses and solar powered vehicles are not included in the scope.

  6. The vehicle is classified as a passenger car or light duty truck, as defined in the relevant regional ADT standard.

  7. For the ICE, only liquid fuels (for example, gasoline and diesel fuel) are used.

    NOTE 2

    In the case of vehicles with ICE using other fuel [for example, compressed natural gas (CNG), hydrogen (H2)], this document can apply except the measurement of consumed fuel; otherwise the measurement method for those using the corresponding fuel can apply.



Standard Number20/30402131 DC
TitleBS ISO 23274-2. Hybrid-electric road vehicles. Exhaust emissions and fuel consumption measurements - Part 2. Externally chargeable vehicles
StatusDefinitive
Publication Date2020-09-14
Identical National Standard OfISO/DIS 23274-2
DescriptorsTesting conditions, Road vehicles, Fuel consumption, Electrically-operated devices, Internal combustion engines, Gas analysis, Energy consumption, Electric motors, Power measurement (electric), Power measurement, Hybrid vehicles, Emission measurement, Exhaust gases
ICS43.120 Electric road vehicles
CommitteePEL/69
PublisherBSI
Pages19

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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