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| Increased
Introduction of Low-Emission Vehicles |
Toyota increased
the number of models that meet the Ministry of Land, Infrastructure
and Transport's Approval System for Low-Emission Vehicles to
156 models in March 2003, accounting for 98% of total production
in FY2002. The number of vehicle series that achieved an exhaust
emission level 75% lower than the 2000 Exhaust Emissions Standards
(Ultra Low-Emission Vehicle level) reached 47.4% of total production.
In addition to VVT-i and improvements of the engine itself,
effectively controlling a high-performance catalytic converter
that has superior warm-up characteristics and durability, an
air-fuel ratio compensation system, an ignition timing control
system, a fuel evaporation gas suppression system, etc., according
to operating conditions, has resulted in cleaner exhaust emissions.
Toyota will continue making development efforts towards the
2005 goal of achieving Ultra Low-Emissions level in most of
its vehicle series.
The number of vehicle series that meet both the Ultra Low-Emission
Vehicle level and the 2010 Fuel Efficiency Standards reached
41% of total production on average in FY2002 and 53% in March
2003. |
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•Number of Models and Percentage of Total Production that Met
the Approval System for Low-Emission Vehicles in FY2002
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•Number of Models and Percentage of Total Production that Meet
Both the 2010 Fuel Efficiency Standards and the Low-Emission
Vehicle Level
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•Trend in the Number of Gasoline Vehicle Models Achieving Exhaust
Standards
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•Vehicles
that Met the Approval System for Low-Emission Vehicles in FY2002
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| Cleaner Diesel Engines |
Since March 2002, Toyota has been
conducting a monitoring program of the DPNR (Diesel Particulate NOx
Reduction) system, a new catalytic converter system for diesel vehicles,
towards commercialization in FY2003. The system is being monitored
on 60 cars in seven European countries. Two units of DPNR-equipped
Avensis, a medium-size sedan for the European market, were loaned
out to Tokyo Metropolitan Government and the Ministry of Land, Infrastructure
and Transport for monitoring and evaluation under various actual operating
conditions.
The DPNR is a catalytic converter system that continuously and simultaneously
removes PM (Particulate Matter) —granular material consisting mainly
of fly ash— and NOx (nitrogen oxide) from diesel exhaust emissions
by utilizing the NOx storage reduction three-way catalytic converter
technology. |
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| Responses to the Low-Pollution Vehicle
Designation System |
In
FY2002 Toyota again submitted its vehicles to the low-pollution
vehicle designation system administered by eight Tokyo area
municipalities,1 and had 95 more of its models certified, reaching
a cumulative total of 351 models. Toyota also submits its vehicles
to the low-pollution vehicle designation system administered
by six Kyoto, Osaka and Kobe area municipalities2.
The Dyna/Toyoace submitted for consideration uses an EGR
system (exhaust gas recirculation system) and a muffler equipped
with a PM-reduction device that uses an oxidizing catalytic
converter, to significantly reduce the PM in the exhaust emissions.
As a result, the levels of CO, HC, NOx, and PM contained in
the exhaust emissions have been reduced to the levels specified
in the Ordinance on Environmental Preservation, enacted by the
Tokyo Metropolitan Government and scheduled to go into effect
in 2003, and also satisfy the PM emissions standards (tighter
regulations) scheduled to go into effect in 2005. |
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•Trend in Number of Vehicles Certified as Low-Pollution Vehicles
1. Eight Tokyo area municipalities:
Saitama, Chiba, Tokyo, Kanagawa, Yokohama City, Kawasaki City,
Chiba City, and Saitama City
2. Six Kyoto, Osaka and Kobe area municipalities: Kyoto, Osaka,
Hyogo, Kyoto City, Osaka City, and Kobe City |
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