vehicle’s tires by 7 psi could increase their rolling distance by 12.5%. They also state from another source that fuel efficiency is reduced by one percent for every three psi that a tire is under inflated. This equates roughly to a four percent increase gas mileage when increasing the tire inflation. Another poster to a forum by the name of Lee posted impressive results to his daughter’s science experiment from school. He noted that they saw over a five mpg increase when they inflated the tires an additional
This paper will follow the life cycle of a Michellin tire. It will start with the raw material that is used, manufacturing, transfer to distribution channels, use and recycling of tire when it is no longer able to be used on an automobile. It is my assumption that people should be aware of where their products come from for a couple of reasons. One if consumers are aware where their products come from and how they are made they may be more apt to be more environmentally conscientious. Two manufactures
The Improvement of Automobile Fuel Economy Abstract In today’s society, it has been determined by energy analysts that fuel consumption is increasing at an alarming rate. This is due to the large influx of drivers on the road, and the increase in travel demands. Since energy is not a finite commodity, there have to be certain movements taken to improve the fuel economy in automobiles. Certain technological advances have been discovered, such as reduction in vehicle weight, and improvements
Vehicles are developing to consume a large mileage per gallon. Instead of finding alternatives for fossil fuel, Designers are trying to improve the vehicle performance by manipulating different parameters of vehicles like engine parameters, Weight, Rolling Resistance and Aerodynamic Drag. 1.1.3 Aerodynamic
In February 2014 hybrid vehicle sales accounted for 2.5% of all vehicles sold in the US according to HybridCars.com. 2.5% sound like a small amount, but that equals 35,611 cars or one hybrid being sold every 1.5 seconds. The hybrid vehicle was created, lead by the original Toyota Prius and Honda Insight, for the purpose of providing an environmentally friendly alternative to the normal combustion engine, but has morphed into a marketing and branding exercise that has been slowly loosing the original
riding quality and skid resistance. The factors influencing riding quality are pavement distress and/or roughness. Three major factors of pavement distress are cracking, rutting, and longitudinal profile [2]. Pavement surface texture has significant impacts on tire-pavement friction. Vehicle maneuvers such as braking and cornering require sufficient skid resistance to maintain vehicle stability. Furthermore, pavement skid resistance can affect tire wear, rolling resistance, road noise, discomfort
How General Motors’ Destroyed the Streetcar The story about the Streetcar Conspiracy states that the death of the electric street cars is no accident. Many people believe that, between 1938-1950, General Motors’(GM) conspired with other companies, including Standard Oil and Firestone Tire’s, to put an end to electric street cars. During this time, the electric street car is a popular method of transportation but GM wanted it gone so it could sell diesel and gasoline buses instead. The urban legend
absence of external forces, an object at rest remains at rest and an object in motion remains in motion with a constant velocity. This law can be best observed in space, far from the gravity of a star or planet, where there is no friction or air resistance. If, in the middle of deep space, you give a rock a little push, it will continue with the direction and velocity you gave it forever. The only way to stop it is to apply a force in the opposite direction. This law is not intuitive because we are
The Newest Type of Transportation Transportation, by definition, is the act of moving something or someone from one place to another. There are many different types of transportation vehicles such as bicycles, boats, human feet (for walking/running), and many more. Although when truly asked about transportation what comes to mind? Yes, the automobile. The automobile, and transportation contains many issues to go along with it. There are five main issues which consist of; social, physical
the Sparrow offers: • Seats 1 person, and ample space for laptop, papers and small grocery run. • 13 lead acid batteries, different in detail from conventional automotive batteries, but not fundamentally so. The batteries provide for a very low center of gravity. • Fiberglass body for keeping the weight down while increasing the energy efficiency considerably. I'm averaging .16KwH/mile or thereabouts for my typical commute. • 110v charging that takes about 8 hours. However, in my typical