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Articles 1 - 16 of 16

Full-Text Articles in Automotive Engineering

Development Of An Electromechanical Valvetrain, Ryan Clarke, Emett Santucci, Isaac Yako, Joseph Mckeirnan Jan 2019

Development Of An Electromechanical Valvetrain, Ryan Clarke, Emett Santucci, Isaac Yako, Joseph Mckeirnan

Engineering E-Portfolios and Projects

The Electromechanical Valvetrain Conversion Team designed and implemented a new system to improve internal combustion engine performance and efficiency. This system replaces the traditional camshaft-based valvetrain with a computer-controlled pneumatic actuation system. This new system has the potential to reduce emissions without sacrificing the benefits which have made combustion engines a popular power source.


Distributed Control System For Parallel-Connected Dc Boost Converters, Steven Goldsmith Aug 2017

Distributed Control System For Parallel-Connected Dc Boost Converters, Steven Goldsmith

Michigan Tech Patents

The disclosed invention is a distributed control system for operating a DC bus fed by disparate DC power sources that service a known or unknown load. The voltage sources vary in v-i characteristics and have time-varying, maximum supply capacities. Each source is connected to the bus via a boost converter, which may have different dynamic characteristics and power transfer capacities, but are controlled through PWM. The invention tracks the time-varying power sources and apportions their power contribution while maintaining the DC bus voltage within the specifications. A central digital controller solves the steady-state system for the optimal duty cycle settings ...


It's No Accident: Evaluating The Effectiveness Of Vehicle Safety Inspections, Alex Hoagland, Trevor Woolley May 2017

It's No Accident: Evaluating The Effectiveness Of Vehicle Safety Inspections, Alex Hoagland, Trevor Woolley

FHSS Mentored Research Conference

Traffic fatalities have fallen steadily over the past two decades, particularly those due to car failure. Many have attributed this fall to safer vehicle technology. This trend has led many states to reevaluate mandatory vehicle safety inspection programs. This study sought to answer the question, does the elimination of vehicle safety inspections have an effect on traffic fatalities?


Wire Neutralization System, Scott A. Bradley, Jason Wiitanen, Timothy B. Smigowski, John T. Niemeyer, Andrew Culkin Jan 2017

Wire Neutralization System, Scott A. Bradley, Jason Wiitanen, Timothy B. Smigowski, John T. Niemeyer, Andrew Culkin

Michigan Tech Patents

A wire neutralizing system for use with a vehicle including a frame adapted to be hitched to a vehicle. At least one wheel supports the frame while a bottom of the wheel rolls over terrain having buried wires. The system also includes a blade movable between a stowed position in which the blade is above the bottom of the wheel and a deployed position in which the blade is below the bottom of the wheel, such that the blade plows through the terrain to disable buried wires when in the deployed position.


Map-Aware Adaptive Automotive Radar, Jae Seung Lee, Nikola Steven Subotic, James Paul Ebling, Helen Kourous-Harrigan Aug 2015

Map-Aware Adaptive Automotive Radar, Jae Seung Lee, Nikola Steven Subotic, James Paul Ebling, Helen Kourous-Harrigan

Michigan Tech Patents

A dedicated short range radar system is provided for use with a GPS system. The radar system includes a transmitter which transmits a microwave radio signal. A receiver is coupled to a horizontally scanning receiver antenna array which receives an echo, if present, from the radio signal transmitted by the transmitter. The radio receiver then generates an output signal representative of the echo. A control circuit then receives the output signal from the antenna array as well as the output signal from the GPS system. The control circuit then varies the mode of operation of the receiver and/or the ...


High Resolution Doppler Collision Avoidance Radar, Jae Seung Lee, Paul Donald Schmalenberg, Nikola Steven Subotic, James Paul Ebling Jun 2015

High Resolution Doppler Collision Avoidance Radar, Jae Seung Lee, Paul Donald Schmalenberg, Nikola Steven Subotic, James Paul Ebling

Michigan Tech Patents

An example radar apparatus has a transmission frequency modulated by a chirp waveform having three chirp segments, including increasing, decreasing, and a constant frequency segments. The chirp waveform may extend over the full revisit time of the radar beam. The frequency difference between the transmitted and echo signals are determined at least once per chirp segment. Example apparatus include a Doppler radar for vehicle use.


Rotational Torque Measurement Device, Paul A. Lavigne, Daniel R. Kemppainen, Glen L. Barna Mar 2014

Rotational Torque Measurement Device, Paul A. Lavigne, Daniel R. Kemppainen, Glen L. Barna

Michigan Tech Patents

A device for measuring torque applied through a rotating member. A first torsion reference member is fixedly coupled to the rotating member at a first axial position and a second torsion reference member is fixedly coupled to the rotating member at a second axial position. A first detector detects the passage of the first torsion reference member past the first detector upon each full rotation of the rotating member and to generate a first signal upon each passage of the first torsion reference member. A second detector detects the passage of the second torsion reference member past the second detector ...


Anti-Icing Coatings And Methods, Russell G. Alger Feb 2014

Anti-Icing Coatings And Methods, Russell G. Alger

Michigan Tech Patents

A method of inhibiting or preventing bonding between snow or ice and a substrate. The method includes applying an adhesive to the substrate, broadcasting an aggregate onto the adhesive, the aggregate having the capacity to receive an anti-icing chemical into the aggregate, and applying the antiicing chemical onto the aggregate so that at least a portion of the anti-icing chemical is received into at least a portion of the aggregate.


Wireless Local Positioning System, Seyed A. Zekavat Feb 2009

Wireless Local Positioning System, Seyed A. Zekavat

Michigan Tech Patents

A method of locating mobiles via a dynamic base station. The method includes transmitting a first wireless signal from the dynamic base station at a first time, and receiving the first wireless signal at the mobile. The method also includes transmitting a second wireless signal from the mobile in response to receiving the first wireless signal, and receiving the second wireless signal at the dynamic base station at a second time. The method also includes determining a time difference between the first time and the second time, determining an angle of arrival of the second wireless signal, and locating the ...


Snow Groomer Assembly, Philip J. Quenzi, Russell G. Alger Jan 2004

Snow Groomer Assembly, Philip J. Quenzi, Russell G. Alger

Michigan Tech Patents

A snow groomer includes a movable platform, a prime mover mounted to the platform and a grooming drum rotatably driven by the prime mover for rotation in a direction opposite the traveling direction of the snow groomer. The grooming drum includes axially spaced apart and radially protruding ribs that extend circumferentially around the drum. The ribs include circumferentially spaced apart apertures and the apertures of each rib are aligned with the apertures of the other ribs. Elongated cutting teeth extend through the apertures of the ribs and have a cross-sectional area that is smaller than the apertures such that the ...


Control Of Mercury Emissions Using Unburned Carbon From Combustion By-Products, Jiann-Yang Hwang, Zhenglong Li Feb 2000

Control Of Mercury Emissions Using Unburned Carbon From Combustion By-Products, Jiann-Yang Hwang, Zhenglong Li

Michigan Tech Patents

Mercury emission from a flue gas such as that generated by a coal fired power plant is controlled by injecting into the flue gas unburned carbon purified from ash such as fly ash or wood ash. The unburned carbon adsorbs the mercury and is later removed from the flue gas by a particle separator. The unburned carbon collected from ash is significantly lower in cost compared to activated carbon presently used in such a process. The unburned carbon is concentrated in the sorbent by one or more separation processes used to remove noncarbon particles from the fly ash. These processes ...


Vehicle Maintenance Pollution Prevention, University Of Northern Iowa. Small Business Pollution Prevention Center. Jan 1995

Vehicle Maintenance Pollution Prevention, University Of Northern Iowa. Small Business Pollution Prevention Center.

Iowa Waste Reduction Center Book Gallery

Pollution prevention can be defined as: "The use of materials, processes, or practices that reduces or eliminates the creation of pollutants or wastes at the source.” (EPA) Pollution prevention represents a shift away from the old school of thought, “pollution control,” in which waste was not dealt with until after it was generated. Through pollution prevention, we look at the processes that generate the waste to see if we can avoid creating a waste in the first place, or at least reduce the hazardous nature of the waste. When this is not possible, the next best solution to prevent wastes ...


Mat Forming Apparatus, Bernard C. H. Sun Dec 1994

Mat Forming Apparatus, Bernard C. H. Sun

Michigan Tech Patents

Mat forming apparatus comprising, in combination, a hollow material transporting member, drive structure for producing a pressure differential across spaced portions of the transporting member so that material is propelled from one of the spaced portions to the other within the hollow transporting member, material directing structure communicating with the drive structure for receiving material from the hollow transporting structure and, responsive to the drive structure, operative to direct the received material in a predetermined path, the hollow transporting member having a non-linear inner surface so that flow in the hollow transporting member is turbulent causing the material being transported ...


Apparatus For Measuring The Temperature Of A Piston In An Internal Combustion Engine, Carl L. Anderson, Glen L. Barna, Douglas B. Brumm Apr 1992

Apparatus For Measuring The Temperature Of A Piston In An Internal Combustion Engine, Carl L. Anderson, Glen L. Barna, Douglas B. Brumm

Michigan Tech Patents

An apparatus for measuring the temperature of a piston in an internal combustion engine. The apparatus includes a thermistor to sense the temperature of the piston and generate an electrical signal representative of that temperature, a transmission unit connected to the thermistor for receiving the electrical signal and for converting the signal to an infrared beam for transmission to a point remote from the piston, and a receiver to receive the beam and convert the beam to an electrical signal corresponding to the electrical signal generated by the thermistor. The first mentioned electrical signal is converted to a rectangular wave ...


Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon Jul 1990

Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon

Michigan Tech Patents

A diesel engine exhaust system is provided with a particulate trap for collecting the products of incomplete combustion during the engine power cycle. A sensing mechanism including an electrode downstream of the trap and a signal generating circuit provides a positive indication of occurrence of regeneration of the trap. Charged particles generated during regeneration induce a charge of the electrode, that charge activates the signal generating circuit and it, in turn, produces an indication external of the exhaust system that trap regeneration is occurring. That indication can be in the operator’s compartment.


A History Of Maine Roads 1600 - 1970, State Highway Comission Jan 1970

A History Of Maine Roads 1600 - 1970, State Highway Comission

Maine Collection

A History of Maine Roads 1600 - 1970.

State Highway Commission, Augusta, Maine, 1970.


Sections: Two Transportation Firsts, Early Roads, The Stagecoach Arrives, Steamboats and Railroads, Better Roads Movement, The Automobile, State Roads, First Highway Commissioner, State Highway Department, State Highway Commission, Patrol Maintenance, Bridge Law, Federal Aid, Highway Finances, World War 1, First Route Markers, Traffic Counts, Snow and Ice Control, Planning Activities, World War 2, The Maine Turnpike, Right of Way, Division Offices, Chairman Full-Time Position, Engineering Tools and Techniques, Engineering Pioneers, The Interstate Program, Roadside Beauty, Highway Safety, Operation of the Department Today.