ISO 23274‑2 is part two of the multi-series standard that specifies a chassis dynamometer test procedure to determine the end of the charge-depleting state (CD) and consumed electric energy during CD state.
The identification of the end of the CD state is an important step for procedures to determine exhaust emissions and fuel consumption.
ISO 23274‑2 applies to vehicles with the following characteristics.
Note: Final determination of exhaust emissions and fuel consumption is not included in ISO 23274‑2.
ISO 23274‑2 on exhaust emissions and fuel consumption measurements for externally chargeable vehicles is applicable to:
The end of the charge depleting state is an important step for procedures to determine exhaust emissions and fuel consumption measurements.
ISO 23274‑2 specifies how to determine the end of the charge depleting state and the consumed electric energy during the charge depleting state. In ISO 23274‑2, applicable driving tests during the charge-sustaining state are used to determine the end of the CD state.
ISO 23274‑2 provides chassis dynamometer test conditions, test procedures and instruments to be used. This will help you in conducting the chassis dynamometer test.
BS ISO 23274‑2:2021 is the second edition that replaces the first edition (ISO 23274‑2:2012), which has been technically revised.
The main changes compared to the previous edition are as follows:
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.