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Author: DAGEL
Publisher:
ISBN: 9780471842323
Category :
Languages : en
Pages :
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Book Description
Author: Timothy W. Dell
Publisher: Goodheart-Wilcox Publisher
ISBN: 9781635632293
Category : Education
Languages : en
Pages : 0
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Book Description
"Heavy Equipment Power Trains prepares students for careers in the off highway industry, primarily servicing construction and agricultural machinery. The text is designed for post-secondary courses on power trains and related systems, including brakes, suspension, and steering. It covers all the competencies required by the AED Foundation for power trains."--Provided by publisher
Author: DAGEL
Publisher:
ISBN: 9780471842323
Category :
Languages : en
Pages :
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Book Description
Author: Tim Dell
Publisher: Goodheart-Wilcox Publisher
ISBN: 9781635632286
Category : Education
Languages : en
Pages : 0
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Book Description
"Heavy Equipment Power Trains prepares students for careers in the off highway industry, primarily servicing construction and agricultural machinery. The text is designed for post-secondary courses on power trains and related systems, including brakes, suspension, and steering. It covers all the competencies required by the AED Foundation for power trains."--Provided by publisher.
Author: Robert N. Brady
Publisher:
ISBN: 9780133858327
Category : Trucks
Languages : en
Pages : 514
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Book Description
Author: Robert N. Brady
Publisher:
ISBN: 9780131814707
Category : Tractor trailer combinations
Languages : en
Pages : 0
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Book Description
For courses in Commercial Transport, Heavy Duty Trucks. Comprehensive in approach, this text presents the latest information on the various systems used in current heavy-duty on/off highway truck combinations with an emphasis on the fundamentals, basic operation, diagnosis, and trouble-shooting of electronically controlled high speed heavy duty diesel engines and transmissions.
Author: Timothy W. Dell
Publisher: Goodheart-Wilcox Publisher
ISBN: 9781685849917
Category :
Languages : en
Pages : 0
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Book Description
This Lab Workbook is designed for use with the text Heavy Equipment Power Trains and Systems. The chapters in the lab workbook correspond to those in the text and should be completed after reading the appropriate text chapter. Each chapter of the lab workbook contains reviews of the textbook chapters to enhance your understanding. The various types of questions include matching, true or false, and multiple choice. Reading Heavy Equipment Power Trains and Systems and using this workbook will help you acquire a working knowledge of the basic principles of heavy equipment systems, as well as develop safe working habits and work skills. You will also gain an awareness of the wide range of machine systems found in agricultural equipment, construction equipment, and some mining equipment. Answering the questions for each chapter will help you master the technical knowledge presented in the text. The lab workbook also contains activities that reinforce real-world application.
Author: Vaheed Nezhadali
Publisher: Linköping University Electronic Press
ISBN: 9176857484
Category :
Languages : en
Pages : 52
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Book Description
Heavy duty powertrains are complex systems with components from various domains, different response times during transient operations and different efficient operating ranges. To ensure efficient transient operation of a powertrain, e.g. with low fuel consumption or short transient duration, it is important to come up with proper control strategies. In this dissertation, optimal control theory is used to calculate and analyze efficient heavy duty powertrain controls during transient operations in different applications. This is enabled by first developing control ready models, usable for multi-phase optimal control problem formulations, and then using numerical optimal control methods to calculate the optimal transients. Optimal control analysis of a wheel loader operating in a repetitive loading cycle is the first studied application. Increasing fuel efficiency or reducing the operation time in such repetitive loading cycles sums up to large savings over longer periods of time. Load lifting and vehicle traction consume almost all of the power produced by a diesel engine during wheel loader operation. Physical models are developed for these subsystems where the dynamics are described by differential equations. The model parameters are tuned and fuel consumption estimation is validated against measured values from real wheel loader operation. The sensitivity of wheel loader trajectory with respect to constrains such as the angle at which the wheel loader reaches the unloading position is also analyzed. A time and fuel optimal trajectory map is calculated for various unloading positions. Moreover, the importance of simultaneous optimization of wheel loader trajectory and the component transients is shown via a side to side comparison between measured fuel consumption and trajectories versus optimal control results. In another application, optimal control is used to calculate efficient gear shift controls for a heavy duty Automatic Transmission system. A modeling and optimal control framework is developed for a nine speed automatic transmission. Solving optimal control problems using the developed model, time and jerk efficient transient for simultaneous disengagement of off-going and engagement of in-coming shift actuators are obtained and the results are analyzed. Optimal controls of a diesel-electric powertrain during a gear shift in an Automated Manual Transmission system are calculated and analyzed in another application of optimal control. The powertrain model is extended by including driveline backlash angle as an extra state in the system. This is enabled by implementation of smoothing techniques in order to describe backlash dynamics as a single continuous function during all gear shift phases. Optimal controls are also calculated for a diesel-electric powertrain corresponding to a hybrid bus during a tip-in maneuver. It is shown that for optimal control analysis of complex powertrain systems, minimizing only one property such as time pushes the system transients into extreme operating conditions far from what is achievable in real applications. Multi-objective optimal control problem formulations are suggested in order to obtain a compromise between various objectives when analyzing such complex powertrain systems.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309159474
Category : Science
Languages : en
Pages : 251
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Book Description
Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.
Author: Gus Wright
Publisher: Jones & Bartlett Learning
ISBN: 1284150933
Category : Transportation
Languages : en
Pages : 1929
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Book Description
"Thoroughly updated and expanded, 'Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems, Second Edition' offers comprehensive coverage of basic concepts building up to advanced instruction on the latest technology, including distributed electronic control systems, energy-saving technologies, and automated driver-assistance systems. Now organized by outcome-based objectives to improve instructional clarity and adaptability and presented in a more readable format, all content seamlessly aligns with the latest ASE Medium-Heavy Truck Program requirements for MTST." --Back cover.
Author: Owen C. Duffy
Publisher: Jones & Bartlett Publishers
ISBN: 1284041166
Category : Trucks
Languages : en
Pages : 1994
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Book Description
Based on the 2014 National Automotive Technicians Education Foundation (NATEF) Medium/Heavy Truck Tasks Lists and ASE Certification Test Series for truck and bus specialists, Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems is designed to address these and other international training standards. The text offers comprehensive coverage of every NATEF task with clarity and precision in a concise format that ensures student comprehension and encourages critical thinking. Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems describes safe and effective diagnostic, repair, and maintenance procedures for today's medium and heavy vehicle chassis systems, including the most current, relevant, and practical coverage of: * Automated transmissions * Braking system technology used in vehicle stability, collision avoidance, and new stopping distance standards * Hybrid drive powertrains * Advanced battery technologies * On board vehicle networks and integrated chassis electrical control system * Automatic transmission drive shafts and drive axles * Charging, starting, vehicle instrumentation and chassis electrical systems * On-board diagnostic systems, electronic signal processing, and sensor operation * Steering, suspension, frames, hitching, and air conditioning systems * Environmental and fuel efficiency technologies Additional features include: * Up-to-date NATEF coverage * Support of ASE certification test preparation for medium-heavy truck and bus test series * A clear, accessible writing style * Reinforcement of concepts learned * Application to real-world practice * A wealth of photographs, illustrations, and step-by-step explanations with visual summaries
