WLTP Subgroup on Electrified Vehicles | WLTP-SG-EV Session 4 | 25-26 Mar 2014
Vienna

The WLTP E-Lab subgroup decided to change its name as part of the shift in focus from the initial WLTP GTR to the new “phase 1b” and future phases in the development of the regulation. Consequently, this session can be considered as the 6th session of the E-Lab group and/or as the 4th session of the Electric Vehicles subgroup.

Agenda Item 4.
CO2 family definition and combined approach

JP proposal was about the definition of CO2 family and use of the combined approach for OVC-HEV and NOVC-HEV. Under the following (1) to (3) conditions, basically the combined approach for CS test is applicable:
(1) same specification of battery/inverter/motor
(2) SOC correction factor need to be developed for both points
(3) Rcdc shall be same for OVC-HEV.

ACEA questions about the necessity of this large number of values for CO2, FC and ranges.

ACEA also pointed that it is wrong to interpolate for each phase because each phase specific values will be influenced by SOC variations (see section 3 above). JP will bring the concern regarding each phase specific values to JP EV group and return with feedback on coming meeting.

We should not finalize CO2 family definition before the combined approach development is finalized. That means that we need to change the road map regarding CO2 family definition to be in line with combined approach, which means final proposal to WLTP IWG at the 10 meeting.

JP proposal for family definition for PEV. ACEA position is to use the same family definition for PEV as for HEV. Also proposes to wait with the finalization until final proposal for combined approach will be presented to WLTP IWG.

ACEA presentation will be circulated when agreed by ACEA members.

Comment from T&E, there is no longer the expression of test mass L and test mass H on the present draft GTR. They are replaced vehicle L and vehicle H.