Comments from RDW and TNO in response to TÜV Rheinland’s Stephen Scheuer remarks on the original Dutch proposal to amend UN R46 with regard to camera monitoring systems.

Downloadable word document.

January 4, 2010 version of the TNO analysis of current tests and requirements
concerning camera-monitor systems under Regulation No. 46 and recommendations for their improvement.

Progress report and overview of the effort to develop a heavy-duty hybrid vehicle emissions test procedure based on hardware-in-the-loop simulations.

Assessment of hardware-in-the-loop simulation (HILS) methodologies and proposals for enhancements (e.g. more topologies, component library, temperature signals to include cold start tests).

Summary report (identical to document HDH-10-03) on the assessment of the hardware-in-the-loop simulation (HILS) methodology for heavy-duty hybrid emissions proposed by Japan.

Overview of TU Graz and TNO evaluation of hardware-in-the-loop simulation methodologies covering the test cycle and vehicle related parameters, harmonisation with CO2 test methods, inclusion of power take-off, and worldwide harmonized vehicle cycle weighting factors.

Presentation on the pilot test phase to evaluate the draft type-approval test procedure for the assessment of mobile air-conditioning (MAC) energy efficiency developed by the consortium of TUG, LAT, KTI and TNO.

TNO presentation on the results of its simulation of a retrofit selective catalytic reduction system.

Introduction to a new EC-sponsored research project into the impact of tire-pressure monitoring systems in reducing fuel consumption and CO2 emissions of commercial vehicles.

Questionnaire destined for vehicle manufacturers and developed for the study of TPMS in the reduction of commercial vehicle fuel consumption and CO2 emissions.

Questionnaire destined for tire manufacturers and developed for the study of TPMS in the reduction of commercial vehicle fuel consumption and CO2 emissions.

Draft questionnaire destined for TPMS manufacturers and developed for the study of TPMS in the reduction of commercial vehicle fuel consumption and CO2 emissions.

Presentation comparing performance results of retrofit diesel particulate filters under the European Test Cycle and Worldwide Harmonized Test Cycle.

Update on development and validation of the new hybrid heavy-duty vehicle test cycles.

Final report on the work performed by Institute for Internal Combustion Engines and Thermodynamics of the Graz University of Technology (TUG) to assess the Japanese HILS certification method within the research program on an emissions and CO2 test procedure for Heavy Duty Hybrids (HDH).

This report is the final report of the work done by the Universities of Technology in Chalmers, Graz and Vienna and research institute TNO performed within the research program on an emissions and CO2 test procedure for Heavy Duty Hybrids (HDH). This report specifically refers to Validation Test Program 1 (VTP1) under the contract for “Developing the Methodology for Certifying Heavy-Duty Hybrids based on HILS”.

Presentation of the results of the validation test program 1 and status of test program 2 (Chassis dyno test program at JRC, HDH drive cycle investigation, and HILS/SILS model verification) and review of open issues for drafting the GTR text.

Progress report on test validation and refinement efforts from the Technical University of Graz (concerning the chassis dynamometer test) and TNO (concerning the road load/coast down test)

Discussion paper on “open issue 13” (and 11) concerning corrections for wind conditions that impact coast down tests and times for road load determination and ultimately the road load settings of the chassis dynamometer. This document summarizes the views of the special ad hoc group formed to consider this issue.

Discussion paper on the use of the torque meter in the WLTP coast-down methods to measure the running resistance as part of the road load determination. This document summarizes the views of the special ad hoc group formed to consider this issue.

Progress reports from TUG (chassis dynamometer corrections) and TNO (coast down corrections) covering preliminary results (as of 27.03.2014).

“Quick scan” study prepared for the Dutch Ministry of Infrastructure and Environment to evaluate the potential of “triple A” tyres to improve vehicle safety, noise emssions, fuel consumption, and CO2 emissions. Tyres in the EU are labeled to convey information on their energy efficiency, safety, and noise performance. Triple A refers to tyres receiving the highest ratings across these three criteria.

TNO draft report on “Correction algorithms for WLTP chassis dynamometer and coast-down testing”.

Paper describing the development and application of a method for determining benefits of tyre noise reduction efforts in terms of the number of people impacted.

Explanation of recommendations developed for the European Commission by LAT, TNO, Heinz Steven, and TÜV Nord for the improvement of the regulations with regard to additional sound emission provisions.

Status report on the European Commission program to investigate the potential for new sound limits of L-category vehicles at Euro 5 step and make a justified proposal.

To support and prepare the introduction of Cyclist-AEB systems and the appropriate consumer tests of such systems, TNO set up a project with passenger car manufacturers and suppliers with the support of research and development partners (such as BASt and 4activeSystems) to develop a testing system and test protocol for CATS, Cyclist-AEB Testing System. This report describes the setup of the project and the approach that was followed from the start in June 2014 to the conclusion in June 2016. Moreover, the report summarises the most important results out of the project.