The Challenge of Designing Electric Cars Dr. Tobias Giebel Tobias Giebel 博士 Sahnghai EXPO‚ May 2010 Contents 内容 • Introduction Group Research and Volkswagen Research Lab China (VRC) 大众汽车集团研发中心概况和大众汽车中国研究实验室(VRC)介绍 • Volkswagens Strategy for Powertrains and Fuel 大众汽车的动力总成及燃料战略 • Blue Motion Technologies 蓝驱技术 • Hybrid Technologies 混合动力技术 • Electrotraction 电驱动技术 • Hydrogen Technologies 氢技术 • Modular Toolbox 模块化设计矩阵 • Conclusion 结论 Dr. Tobias Giebel Tobias Giebel 博士 The Volkswagen Portfolio
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motion control are called drives and employ any of the prime movers such as diesel or petrol engines gas or steam engines hydraulic motors and electric motors for supplying mechanical energy for motion control. Drives employing electric motors are known as Electrical drives. Fig 1.1 Block diagram of an Electrical Drive The advancement in electric drive system is very much related to the development in the power semiconductor devices technology. The introduction of the Silicon Controlled Rectifier
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Abraham Lincoln Being the President of the United States is not an easy job. Not to mention there is always a chance that the whole country could end up hating you. Most likely there are decisions you will make that people aren’t going to agree with. Some ideas you have might not always work out the way you want‚ and people might see them differently than you. To be president‚ you must be a strong and caring person. Who knows the danger of leading the country‚ especially back when there wasn’t
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uniform E + + + + + + electric U = Fy = q0Ey a F=Eq0 E Wab = Fd = q0Ed d b ya yb ‒ ‒ ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) F does positive work‚ U decreases positive charge moving in the opposite direction of uniform E + + + + + + electric U = Fy = q0Ey b Wab = Fd = q0Ed d E yb a ya F=Eq0 ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) ‒ ‒ F does negative work‚ U increases negative charge moving in the direction of uniform E + + + + + + electric F=Eq0 U = Fy = q0Ey a Wab
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NOTE: This paper explains the theory and uses of the electric generator‚ and explains the differences between AC and DC generators. It also includes a glossary and a bibliography. --------------------------------------------------- ELECTRIC GENERATORS In its most basic definition‚ an electric generator is a machine that produces electricity. Generators produce almost all of the electricity used by people. They supply the electric power that runs machines in factories‚ provide lighting‚ and operate
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is to use the electric motor instead of gasoline one. An electric car is a car that powered by an electric motor rather than a regular gasoline engine. There are several major differences between gasoline and electric cars. First of all‚ “the electric motor will replace the gasoline engine” (“How Electric”‚ 2004). Secondly‚ “the electric motor is powered by a controller” (“How Electric”‚ 2004). Thirdly‚ “the controller gets power from the rechargeable batteries” (“How Electric”‚ 2004). In
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2. General Electric uses a multifaceted approach to help make them one of the industries leaders in engine production. This approach includes resources both financially and managerially. Financially General Electric has invested $50 million in new engine technology‚ with an additional $1.2 billion to $1.4 billion being required to help them bring new engine designs to the forefront. General Electric has also received a $20 million grant from NASA in order for them to create the first tester UDF
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Temporary Employees versus Permanent Employees Lynne Basco Ashford University BUS 640 Michael Blagg June 19‚ 2011 Temporary Employees versus Permanent Employees Executive Summary The purpose of this paper is to determine whether a company should utilize temporary employees over hiring permanent fulltime employees. This paper will look at not only the economic cost and the accounting cost of both options; it will also factor in the long-run economic impact that both options will have on
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him to Richmond‚ the Confederate capital. However‚ on March 20‚ 1865‚ the day of the planned kidnapping‚ Lincoln failed to appear at the spot where Booth and his six fellow conspirators lay in wait. Two weeks later‚ Richmond fell to Union forces. In April‚ with Confederate armies near collapse across the South‚ Booth came up with a desperate plan to save the Confederacy. Learning that Lincoln was to attend Laura Keene’s acclaimed performance of "Our American Cousin" at Ford’s Theatre in Washington
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Our Electric Bicycle Project I have added an electric power assist onto a GT mountain bike. With a 3 HP peak motor‚ it is much more powerful than typical electric bicycles. The basic motivation to build an electric bike was to have a fun and efficient and environmentally friendly way to stay out my car for short trips around town‚ and also as a silent trail bike for exploring the hills. I wanted to get some exercise - this bike can still be pedaled. When I first put this together it was even more
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