|JAMA proposes an multi-part approach similar to that being taken in Japan that puts less direct burden on the automakers. Click to enlarge.|
The Japanese Automobile Manufacturers Association (JAMA) has published a response to the European Commission’s proposal to institute binding limits of greenhouse gas emissions on new vehicles by 2012: an average 130 g/km from the vehicles, with another 10 g/km to come from lower carbon fuels and other measures.
While saying that it supports the Commission’s objectives, JAMA expresses concern over the implementation dates, the legislated emissions framework, and the focus on vehicle technology.
JAMA members are making every effort to met the interim target of 140 g CO2/km by 2009. If JAMA members are to meet the Commission’s new target of 120 g/km by 2012, the CO2 emissions rate will have to be cut by a further 20 g/km in only 3 years. JAMA therefore does not believe that it will be possible to meet the ambitious 2012 target in such a limited time frame.
The Euro 5/6 standards and environmental and safety regulations will constrain efforts to cut CO2, according to JAMA.
Modification required to pass the Euro NCAP crash-impact tests increase vehicle weight, as do safety belts, other restraint systems and the ISOFIX system, according to JAMA. Modification to vehicle shape to protect pedestrians in the event of a collision increase weight and aerodynamic drag.
The average weight of JAMA vehicles increased by 99 kg between 1999 and 2005.
Approximately 27 kg are estimated to be due to “new regulation, quasi-regulation”. The remaining 72 kg are due to “market changes”. This increase amounts to an average increase in CO2 emissions of 6.6 g/km. It is to be noted that the increase of 72 kg occurred despite efforts by JAMA to use lightweight solutions such as high-strength steel, aluminum, magnesium and plastics.
A 10% increase in aerodynamic drag results in a 2% increase in CO2 emissions, according to JAMA.
The association supports an integrated approach similar to the “three-in-one” approach being taken in Japan: greater fuel efficiency through vehicle technology improvements; improved traffic flow through road infrastructure improvements and improved traffic management; and “eco-driving”.
Of the 54.9 million tonnes of CO2 from the transport sector targeted for reduction in 2010 in Japan, 38% will come from greater fuel efficiency, 10% will come from alternative fuel vehicles and other measures such as eco-driving, and 52% will come from improved traffic flow, according to JAMA.
Looking to the Future (JAMA)