R&D of Next Generation Heavy-duty Low Emission Vehicles
Technology development of next-generation heavy-duty vehicles with ultra low fuel consumption and zero or near-zero emissions of air pollution substances contained in exhaust gases that can replace conventional diesel powered vehicles is important to fundamentally solve environmental and energy problems caused by automobiles. Under 3-year project beginning 2002, the Laboratory is developing a DME (Dimethyl Ether) truck, hybrid bus and truck, CNG truck and super clean diesel engine sponsored by Ministry of Land, Infrastructure and Transport undertaken under the framework of cooperation among the industry, academia and government. The prototype vehicles will be shown at Tokyo motor show in 2004.
Images of Next-Generation Low Emission Vehicles
Development
Objectives
- To achieve power output and fuel efficiency of new generation heavy duty vehicles equivalent to diesel vehicles, with a final goal of realizing a smokeless vehicle with a nitrogen oxide (NOx) emission level that is one-tenth emission limit set forth in the new long-term regulation.
- To not only take the environment into account but also take safety and noise reduction into consideration.
- To be sufficiently feasible.
Vehicles to be developed
| DME truck |
Natural gas truck |
Series hybrid bus |
Parallel hybrid truck |
Super clean diesel engine |
Current targeted values |
Gas emission |
NOx |
One-quarter of the new long-term regulation limit |
One-quarter of the new long-term regulation limit |
One-quarter of the new long-term regulation limit |
One-tenth of the new long-term regulation limit |
One-tenth of the new long-term regulation limit |
PM |
≒0.0g/kwh (No black smoke emission) |
≒0.0g/kwh (No black smoke emission) |
One-quarter of the new long-term regulation limit |
One-tenth of the new long-term regulation limit |
One-half of the new long-term regulation limit |
Fuel efficiency |
Eqauivalent to base diesel engines |
Less tan a diesel engine with CO2 emission |
Over doubled |
Over doubled |
Improved by 10% from the current level |
Description |
Type of vehicle |
Heavy duty truck for long-distance transport |
Heavy duty truck for long-distance transport |
bus |
truck |
Engine(engines for trucks are assumed) |
Engine (Power) |
Power : 200kw |
Power : 235kw-257kw |
Engine : 5L Generator : 40kw Motor : 90kwx2 |
Engine : 4L Generator : 110kw Motor : Approx. 70kw |
Power : 280kw |
Total vehicle weight |
18 t |
25 t |
14 t |
13 t |
25 t (assumed) |
Load or Seating capacity |
10 t |
- |
78 people |
8 t |
13 t (assumed) |