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workbook_hybrid_cars - In a parallel hybrid the internal...

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PHYS 113: Fall 2006 Hybrid Cars work sheet 1) What are the principle advantages of hybrid cars? Greater fuel economy, lower pollutant emissions. 2) List some of the ways hybrid cars save energy. Actively monitoring necessary energy output and adjusting accordingly. 3) What does LEV, ULEV and SULEV mean? LEV=Low Emissions Vehicle ULEV=Ultra Low Emissions Vehicle SULEV=Super Ultra Low Emissions Vehicle 4) How much power is needed to keep a typical car moving at 60 mph? 20 horsepower. 5) What purpose is served by a high power engine? Greater acceleration rate. 6) Describe the operation of a parallel and series hybrid car. Much like an electrical circuit can be parallel or series, so can a Hybrid Car.
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Unformatted text preview: In a parallel hybrid, the internal combustion unit and the electric motor assist each other in driving the transmission. In a series hybrid, the internal combustion unit generates power for the electric motor which drives the transmission. 7) What are some of the drawbacks of hybrids? Expensive technology, payback in savings too long. 8) What are some of the alternative hybrid cars? What fuel do they use and why? Hydrogen Fuel Cell cars are an alternative, the thought being that hydrogen is the most plentiful resource in the universe and also happens to be combustible....
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