Allison Transmission is the world's largest supplier of fully automatic medium- and heavy-duty commercial vehicles and a hybrid supplier of urban passenger vehicles. It is also a technological leader in developing natural gas commercial vehicles. Currently, CNG/LNG trucks and buses are increasingly being used in public transport, environmental services, distribution, and construction fleets to meet the growing demand for economical, clean, efficient, and quiet drive systems worldwide.
The engines of CNG/LNG vehicles are often underpowered, and Allison torque converters can compensate for this shortcoming by significantly increasing the engine torque and improving the vehicle's starting, handling and overall productivity. Compared to manual or AMT gearboxes, Allison automatic transmission ContinuousPowerTechnologyTM (uninterrupted power technology) to avoid the manual or AMT vehicle shift when the usual slow response to the throttle occurs.
As the Allison transmission increases the torque transmitted from the engine to the drive wheels, the efficiency and performance of the vehicle are improved. In addition, Allison hydraulic retarder can improve vehicle braking performance and solve the problem of insufficient braking torque provided by natural gas engines.
"Allison automatic transmissions have the patented torque converter technology and inherent advantages of smooth shifting, which is a perfect match for natural gas vehicles," said Petervan Cuijk, Allison Transmission International Project Manager. Natural gas fuels are economical and environmentally friendly. With the expansion of natural gas infrastructure, Allison automatic transmissions are increasingly used in many areas such as garbage trucks, distribution vehicles, short-distance transportation, and road tractors."
In North America, commercial vehicle manufacturers choose to equip Allison transmissions for CNG/LNG vehicles. For example, Freightliner's natural gas vehicles use only Allison products, including the new Cascadia 113 natural gas day tractor. This natural gas tractor is equipped with a Cummins WestportISX12G heavy duty engine and an Allison 4000 Series transmission. Two other Freightliner models, the M2112 and 114SD, are equipped with the Cummins WestportISLG8.9L engine and the Allison 3000 Series transmission.
The United States Saddle Creek Corp.’s CNG tractor fleet has doubled in size and Allison has become an expansion partner. The third-party logistics service provider, based in Lakeland, Florida, recently purchased 40 more Allison automatic transmissions as its fleet of trucks in the southeast United States continues to use natural gas fuel. The Freightliner BusinessClass M2112 truck. The Freightliner M2112 CNG truck has a 530-litre (140-gallon) fuel system that can run 885-925 kilometers (550-575 miles) per day, depending on the application.
In Europe, Allison automatic transmission technology is also increasingly favored by CNG/LNG truck users. Major vehicle manufacturers, including Scania, Iveco, Renault and Mercedes, have allied the Allison automatic transmission for their natural gas engines.
Berliner Stadtreinigung GmbH (BSR for short) is Germany's largest urban waste management company. Currently 120 Mercedes-Benz EconicCNG garbage trucks are in service, all equipped with Allison 3000 series automatic transmission. box. In order to achieve zero-carbon driving, these vehicles will be fueled with biomethane produced by BSR's own factory in Ruhleben, Berlin.
At the Magna Steyr General Plant in Graz, Austria, a Mercedes-Benz Econic NGT 1828 tractor equipped with an Allison automatic transmission was tested. The Econic was owned by the Austrian transport company Frikus and was the first of its kind to be used in Austria. It used a 205 kW (279 hp) 6.9-litre OM906LAG gas engine and was specially equipped with an Allison 3000 series with a retarder. 6 Speed ​​automatic transmission.
As a result, the pollutant emissions of CO2 and NO2 emissions from this Econic NGT 1828 tractor were greatly reduced. At the same time, fuel consumption was reduced by 10% and fuel costs were also reduced by 20%. Compared with equivalent diesel vehicles, noise pollution is reduced by 50%.
VanCuijk concluded: Natural gas, an alternative fuel that is cleaner than diesel, can reduce greenhouse gas emissions and noise pollution. It is also economically affordable. Operators around the world have already convinced them to purchase CNG/LNG vehicles equipped with Allison transmissions. â€
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