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Die Publikation beschreibt die Entwicklung und Realisierung des Weltrekordfahrzeuges PAC-Car II, das mit (umgerechnet) 1 Liter TreibstoffÄquivalent eine Strecke von 5385 Kilometern zurücklegte. PAC-Car II verbesserte am Shell Eco-Marathon in Ladoux (Frankreich) am 26. Juni 2005 den Weltrekord in energieeffizientem Fahren. - Jean-Jacques Santin ist Assistenzprofessor für Maschinenbau an der Uni Valenciennes (FR) und entwickelte zusammen mit Dr. Christoph Onder, Assistenzprofessor am Institut für Mess- und Regeltechnik der ETH Zürich, und einigen Mitarbeitern das Wasserstoff- und Brennstoffzellengetriebene Weltrekordfahrzeug.
The goal of the PAC-Car project, a joint undertaking of ETH Zurich and its partners, was to build a vehicle powered by a hydrogen fuel cell system that uses as little fuel as possible. PAC-Car II set a new world record in fuel efficient driving (the equivalent of 5,385 km per liter of gasoline) during the Shell Eco-marathon in Ladoux (France) on June 26, 2005.
This book, addressed to graduate students, engineering professors and others interested in fuel economy contests, is the first to summarize the issues involved when designing and constructing a vehicle for fuel economy competitions. It describes the adventure of developing the PAC-Car II and others some specific technical advice for anyone who wants to design an ultra-lightweight land vehicle, whatever its energy source.
The World's Most Fuel Efficient Vehicle
Chapter 1: Fuel economy competitions
1.1. The philosophy behind a fuel economy competition
1.2. Measuring fuel consumption
1.3. A brief summary of the Shell Eco-marathon rules and regulations
1.4. World records
1.5. The pilot
Chapter 2: Some design considerations for fuel economy vehicles
2.1. Defining the vehicle architecture
2.2. Defining the target figures of the vehicle
Chapter 3: Tires
3.1. Rolling resistance of a tire
3.2. Ultra-low rolling-resistance tires on the market 0
3.3. Relevant tire mechanics basics
3.4. The mechanical effects of cambered wheels
3.5. Mechanical effect of toe-in angle
Chapter 4: Tire drag when cornering
4.1. Vehicle Fixed Coordinate System
4.2. Steady-state cornering models
4.3. Comparison of three steering system types
4.4. Tire forces and moments when cornering
4.5. The optimization of the vehicle architecture parameters
Chapter 5: Aerodynamics
5.1. Fundamental principles of aerodynamics for low-drag vehicles
5.2. Design process for the PAC-Car II body shape
5.3. Aerodynamics of the PAC-Car II
5.4. Experimental and numerical optimization methods
5.5. Conclusion
Chapter 6: Vehicle body structure
6.1. The pilot's field of vision
6.2. Vehicle body design process
6.3. Structural optimization of the body
6.4. Manufacturing Process
Chapter 7: Wheels
7.1. Wheel bearings
7.2. The wheel criteria
7.3. Design process
7.4. Manufacturing process
Chapter 8: Front axle & steering system
8.1. The front axle
8.2. The steering system
Chapter 9: Powertrain
9.1. An overview of the PAC-Car II powertrain
9.2. The drive motor
9.3. The drive train
9.4. The clutch
9.5. The brakes
Chapter 10: Fuel cell system
10.1. Fuel cell fundamentals
10.2. The fuel cell system of PAC-Car II
10.3. The control systems
10.4. System results
10.5. Conclusion
Chapter 11: Driving strategy
11.1. The PAC-Car II model
11.2. The driving strategy problem
11.3. Validating the strategy and race results
11.4. Conclusion
Chapter 12: Conclusion and outlook
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