Proposal to improve the Engine Control Unit (ECU) torque signal validation requirement in the 06 series of amendments to R49 with regard to dual-fuel or flex-fuel vehicles. Under the regulation, the ECU torque information can be calibrated only to one fuel’s heat value (usually the basic reference fuel) even though the heat value of the alternative fuel is different. In order to increase the accuracy of the torque values used for calculating the emission results during in-service conformity testing, OICA proposes to change the provisions to either:

1. Demonstrate that both fuels comply because the ODB system is able to detect the fuel used, or
2. Determine the torque deviation caused by the alternative fuel heat value compared to the standard fuel and apply this correction factor to calculate a more accurate power signal for the emission calculation.

Proposal of a consolidated revision of UN R96 to align the UN Regulation with Regulation (EU) 2016/162 concerning gaseous and particulate pollutant emission limits and type-approval for internal combustion engines for non-road mobile machinery.

Proposal of amendments to the light vehicle emissions GTR (WLTP) pursuant to the “phase 2” mandate of the WLTP informal group. This proposal is also available in a marked-up version with changes tracked in word and pdf formats.

Proposal for amendments to GTR 19 pursuant to the “Phase 2” mandate of the WLTP informal group. This proposal addresses the evaporative emissions test procedure for sealed fuel tank systems. Versions of this proposal highlighting the changes are available in word and pdf formats.

PTI informal group working draft “Proposal for a new UN Rule [No. 3] on Periodical Technical Inspections of motor vehicles using Compressed Natural Gas (CNG), Liqufied Petroleum Gas (LPG) and/or Liquefied Natural Gas (LNG) in their propulsion system”

The light vehicle emissions GTR (WLTP) is being transposed into a UN Regulation. Given its complexity, the preferred approach is to draft a UN Regulation that would allow national/regional application with different stringency levels. The task force preparing the UN Regulation version of the GTR seeks IWVTA informal group input to understand issues that may impact the application of the light vehicle emissions regulation to whole vehicle type approvals.

Presentation on the consortium researching a methodology for the measurement of particles to about 10 nm and development of a high efficiency PN-Portable Emission Measurement System (PEMS) demonstrator.