Fuel Switch to LNG in Heavy Truck Traffic

Heavy Truck Modeling for Fuel Consumption Simulations and Measurements

Fuel consumption for heavy trucks depends on many factors like roads, weather, and driver behavior that are hard for a manufacturer to influence. However, one design possibility is the powertrain configuration. Here a new simulation program for heavy trucks is created to find the configuration of the powertrain that gives the lowest fuel consumption for each transport task. For efficient simula...

A Fuel-Based Inventory for Heavy-Duty Diesel Truck Emissions

A fuel-based method for estimating heavy-duty diesel truck emissions is described. In this method, emission factors are normalized to fuel consumption; vehicle activity is measured by the amount of diesel fuel consumed. For the San Francisco Bay Area during summer 1996, on-road heavy-duty diesel trucks were estimated at the upper bound to emit 110 × 103 kg/day of nitrogen oxides (NOx) and 3.7 ×...

Waste Management's LNG Truck Fleet: Start-Up Experience

Scheduling of a Generalized Switch: Heavy Traffic Regime

We consider a generalized switch model, which includes as special cases the model of multiuser data scheduling over a wireless medium [5, 1], the input-queued cross-bar switch model [3], and a discrete time version of a parallel server queueing system [2, 6]. Input flows, , are served in discrete time by a switch. Switch state follows a finite discrete time Markov chain. In each state , the swi...

Air Leakage Diagnosis in Heavy Duty Truck

Sammanfattning Scania CV AB is a leading company within development and production of buses, trucks as well as industrial and marine engines. New environmental and safety legislations continuously demand higher quality from the products. An upcoming European legislation, Euro 6, implies that gas leakages from truck engines should be detected while driving. If the source of the leakage is not on...