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Hydraulic Launch Assist
Hydraulic Launch Assist (HLA) is the name of a hydraulic hybrid regenerative braking system for land vehicles produced by the Eaton Corporation. Background The HLA system recycles energy by converting kinetic energy into potential energy during deceleration ''via'' hydraulics, storing the energy at high pressure in an accumulator filled with nitrogen gas. The energy is then returned to the vehicle during subsequent acceleration thereby reducing the amount of work done by the internal combustion engine. This system provides considerable increase in vehicle productivity while reducing fuel consumption in stop-and-go use profiles like refuse vehicles and other heavy duty vehicles. Parallel vs. series hybrids The HLA system is called a parallel hydraulic hybrid. In parallel systems the original vehicle drive-line remains, allowing the vehicle to operate normally when the HLA system is disengaged. When the HLA is engaged, energy is captured during deceleration and released durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Hybrid
Hydraulic hybrid vehicles (HHVs) use a pressurized fluid power source, along with a conventional internal combustion engine (ICE), to achieve better fuel economy and reductions in harmful emissions. They capture and reuse 70–80% of the vehicle's braking/decelerating energyHydraulic Hybrid Vehicles US EPA compared to 55% for electric hybrids. For trucks and buses, this can also be less expensive than electric systems, due to the price of required for the latter. Hydraulic hybrid vehicle systems can also weigh less than electric systems, due to the high weight of the batteries. This can lead to a lower impact on payload capacity, esp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Energy
In physical sciences, mechanical energy is the sum of potential energy and kinetic energy. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, then the mechanical energy is constant. If an object moves in the opposite direction of a conservative net force, the potential energy will increase; and if the speed (not the velocity) of the object changes, the kinetic energy of the object also changes. In all real systems, however, nonconservative forces, such as frictional forces, will be present, but if they are of negligible magnitude, the mechanical energy changes little and its conservation is a useful approximation. In elastic collisions, the kinetic energy is conserved, but in inelastic collisions some mechanical energy may be converted into thermal energy. The equivalence between lost mechanical energy and an increase in temperature was discovered by James Prescott Joule. Many devices are used to convert me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Vehicles
A hybrid vehicle is one that uses two or more distinct types of power, such as submarines that use diesel when surfaced and batteries when submerged. Other means to store energy include pressurized fluid in hydraulic hybrids. The basic principle with hybrid vehicles is that the different motors work better at different speeds; the electric motor is more efficient at producing torque, or turning power, and the combustion engine is better for maintaining high speed than a typical electric motor. Switching from one to the other at the proper time while speeding up yields a win-win in terms of energy efficiency, such that it translates into greater fuel efficiency. Vehicle types Two-wheeled and cycle-type vehicles Mopeds, electric bicycles, and even electric kick scooters are a simple form of a hybrid, powered by an internal combustion engine or electric motor and the rider's muscles. Early prototype motorcycles in the late 19th century used the same principle. * In a paral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Vehicles
A green vehicle, clean vehicle, eco-friendly vehicle or environmentally friendly vehicle is a road motor vehicle that produces less harmful impacts to the environment than comparable conventional internal combustion engine vehicles running on gasoline or diesel, or one that uses certain alternative fuels. Presently, in some countries the term is used for any vehicle complying or surpassing the more stringent European emission standards (such as Euro6), or California's zero-emissions vehicle standards (such as ZEV, ULEV, SULEV, PZEV), or the low-carbon fuel standards enacted in several countries. Green vehicles can be powered by alternative fuels and advanced vehicle technologies and include hybrid electric vehicles, plug-in hybrid electric vehicles, battery electric vehicles, compressed-air vehicles, hydrogen and fuel-cell vehicles, neat ethanol vehicles, flexible-fuel vehicles, natural gas vehicles, clean diesel vehicles, and some sources also include vehicles using blend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Design
''Machine Design'' () is an American trade magazine and website serving the OEM engineering market. Its print issues reach qualified design engineers and engineering managers twice a month. Key technologies covered include computer-aided design and manufacturing (CAD/CAM), electrical and electronics, fastening and joining, fluid power, manufacturing, engineered materials, mechanical engineering, and motion control. Today, ''Machine Design'' is owned by Informa, and has editorial offices based in New York, New York and Cleveland, Ohio, USA. History The inaugural issue of ''Machine Design'' coincided almost exactly with the 1929 stock-market crash and the beginning of the Great Depression. Although the nation was in the economic doldrums, there was significant design development taking place in almost all industrial segments including automotive, aircraft, farm equipment, home appliances, and industrial machinery. The onset of World War II came and brought almost frenetic ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peterbilt Motors
Peterbilt Motors Company is an American truck manufacturer. Established in 1939 from the acquisition of Fageol Truck and Motor Company, Peterbilt specializes in the production of heavy-duty ( Class 8) and medium-duty (Classes 5–7) commercial vehicles. The namesake of company founder T. A. "Al" Peterman, Peterbilt has operated as part of PACCAR since 1958, operating alongside sister division Kenworth Truck Company (though serving as one of the longest-running marketplace rivalries in American truck manufacturing). Peterbilt trucks are identified by a large red-oval brand emblem, in use since 1953. The company also uses a "bird"-style hood ornament on conventional-cab trucks, in use since 1965. Headquartered in Denton, Texas, the company also manufactures trucks at PACCAR facilities in Sainte-Thérèse, Quebec, Canada and Mexicali, Mexico. History Background In the first third of the 20th century, transportation in the lumber industry remained time-consuming, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change In Texas
The climate in Texas is changing partially due to global warming and rising trends in greenhouse gas emissions.What Climate Change Means for Texas (PDF). EPA. August 2016. EPA 430-F-16-045. As of 2016, most area of Texas had already warmed by since the previous century because of and other countries. Texas is expected to experience a wide range of environmental impacts from |
Public Transport Bus Service
Public transport bus services are generally based on regular operation of transit buses along a route calling at agreed bus stops according to a published public transport timetable. History of buses Origins While there are indications of experiments with public transport in Paris as early as 1662, there is evidence of a scheduled "bus route" from Market Street in Manchester to Pendleton in Salford UK, started by John Greenwood in 1824. Another claim for the first public transport system for general use originated in Nantes, France, in 1826. Stanislas Baudry, a retired army officer who had built public baths using the surplus heat from his flour mill on the city's edge, set up a short route between the center of town and his baths. The service started on the Place du Commerce, outside the hat shop of a M. Omnès, who displayed the motto ''Omnès Omnibus'' (Latin for "everything for everybody" or "all for all") on his shopfront. When Baudry discovered that pass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kent, Washington
Kent is a city in King County, Washington, King County, Washington (state), Washington, United States. It is part of the Seattle metropolitan area, Seattle–Tacoma–Bellevue metropolitan area and had a population of 136,588 as of the 2020 United States census, 2020 census, making it the fourth-largest municipality in greater Seattle and the List of municipalities in Washington, sixth-largest in Washington state. The city is connected to Seattle, Bellevue, Washington, Bellevue and Tacoma, Washington, Tacoma via Washington State Route 167, State Route 167 and Interstate 5 in Washington, Interstate 5, Sounder commuter rail, and commuter buses. Incorporated in 1890, Kent is the second-oldest incorporated city in King County, after Seattle. It is generally divided into three areas: West Hill (mixed residential and commercial along Interstate 5), Valley (primarily industrial and commercial with some medium-density residential; significant parkland along Green River (Duwamish River tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concept Car
A concept car (also known as a concept vehicle, show vehicle or prototype) is a car made to showcase new styling and/or new technology. They are often exhibited at motor shows to gauge customer reaction to new and radical designs which may or may not be mass-produced. General Motors designer Harley Earl is generally credited with inventing the concept car, and did much to popularize it through its traveling Motorama shows of the 1950s. Concept cars never go into production directly. In modern times all would have to undergo many changes before the design is finalized for the sake of practicality, safety, regulatory compliance, and cost. A " production-intent" prototype, as opposed to a concept vehicle, serves this purpose. Design Concept cars are often radical in engine or design. Some use non-traditional, exotic, or expensive materials, ranging from paper to carbon fiber to refined alloys. Others have unique layouts, such as gullwing doors, 3 or 5 (or more) wheels, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonka
Tonka is an American producer of toy trucks. The company is known for making steel toy models of construction type trucks and machinery. Maisto International, which makes diecast vehicles, acquired the rights to use the Tonka name in a line of 1:64 scale, featuring mostly trucks. History Tonka began as Mound Metalcraft, a gardening tools company, in the fall of 1946 in Mound, Minnesota. Lynn Everett Baker (1898–1964), Avery F. Crounse, and Alvin F. Tesch created the company in an old schoolhouse. Their building's former occupant, the Streater Company, had made and patented several toys, including toy trucks. E. C. Streater was not interested in the toy business so they approached Mound Metalcraft. The three men at Mound Metalcraft thought they might make a good sideline to their other products. After some modifications to the design by Alvin Tesch and the addition of a new logo created by Erling Eklof, the company began selling metal toys, which soon became the primary b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ford Motor Company
Ford Motor Company (commonly known as Ford) is an American multinational automobile manufacturer headquartered in Dearborn, Michigan, United States. It was founded by Henry Ford and incorporated on June 16, 1903. The company sells automobiles and commercial vehicles under the Ford brand, and luxury cars under its Lincoln luxury brand. Ford also owns Brazilian SUV manufacturer Troller, an 8% stake in Aston Martin of the United Kingdom and a 32% stake in China's Jiangling Motors. It also has joint ventures in China ( Changan Ford), Taiwan ( Ford Lio Ho), Thailand ( AutoAlliance Thailand), and Turkey ( Ford Otosan). The company is listed on the New York Stock Exchange and is controlled by the Ford family; they have minority ownership but the majority of the voting power. Ford introduced methods for large-scale manufacturing of cars and large-scale management of an industrial workforce using elaborately engineered manufacturing sequences typified by moving assembly lines; by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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