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Automotive Engineering Commons

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Articles 1 - 20 of 20

Full-Text Articles in Automotive Engineering

Driving The Future: Mobility In The 21st Century, Ted Hamer Mar 2018

Driving The Future: Mobility In The 21st Century, Ted Hamer

Purdue Road School

As part of its future-focused infrastructure planning, INDOT is embarking on a project with Purdue University to understand how the development of transportation infrastructure can be linked to benefits to business supply chains, thus enabling decisions to nurture an ecosystem around connected and autonomous vehicles (CAVs). KPMG will provide insight into the CAV industry.


Research On The Impact Of Geometric Parameter On The Cross-Section Precision In Rotary Draw Bending Of High-Strength Steel Tube With Rectangular Section, Hongliang Yang, Zhongwen Xing, Zhao Hao Oct 2016

Research On The Impact Of Geometric Parameter On The Cross-Section Precision In Rotary Draw Bending Of High-Strength Steel Tube With Rectangular Section, Hongliang Yang, Zhongwen Xing, Zhao Hao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Fatigue Analysis Of The Welded Region In The Automotive Torsion Beam Rear Suspension System, Nan Zhan, Xiaochuan Zhang Oct 2016

Fatigue Analysis Of The Welded Region In The Automotive Torsion Beam Rear Suspension System, Nan Zhan, Xiaochuan Zhang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Deformation Mechanism And Process Optimization Of Mechanical Clinching Joining Technology Used For Steel And Aluminum Alloy Sheets, Yanli Song, Genpeng Zhu, Lin Hua, Dingguo Dai Oct 2016

Deformation Mechanism And Process Optimization Of Mechanical Clinching Joining Technology Used For Steel And Aluminum Alloy Sheets, Yanli Song, Genpeng Zhu, Lin Hua, Dingguo Dai

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical Simulation And Experiments Analysis On Stiffness Control Mechanism Of Hyperboloid Shallow Shells, Zhao Lihong, Yu Haiping, Xing Zhongwen, Lei Chengxi, Wu Bin Oct 2016

Numerical Simulation And Experiments Analysis On Stiffness Control Mechanism Of Hyperboloid Shallow Shells, Zhao Lihong, Yu Haiping, Xing Zhongwen, Lei Chengxi, Wu Bin

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Latest Development In Virtual Casting Of Lightweight Metals, Qigui Wang Oct 2016

Latest Development In Virtual Casting Of Lightweight Metals, Qigui Wang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research On The Impact Of Geometric Parameter On The Cross-Section Precision, Yang Hong Liang, Xing Zhong Wen, Hao Zhao Oct 2016

Research On The Impact Of Geometric Parameter On The Cross-Section Precision, Yang Hong Liang, Xing Zhong Wen, Hao Zhao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Simulation On The Sealing Of Aluminum Ball Joint, Haobin Tian, Xiaohang Liu, Xuelei Li, Jun Feng Oct 2016

Simulation On The Sealing Of Aluminum Ball Joint, Haobin Tian, Xiaohang Liu, Xuelei Li, Jun Feng

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Design And Manufacturing Of Automotive Parts With Tailored Mechanical Properties, Lin Hua, Yanli Song, Yu Han, Yuhan Shen Oct 2016

Design And Manufacturing Of Automotive Parts With Tailored Mechanical Properties, Lin Hua, Yanli Song, Yu Han, Yuhan Shen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Modeling The Impact Of Battery Degradation Within Lifecycle Cost Based Design Optimization Of Heavy-Duty Hybrid Electric Vehicles, Ashish P. Vora Aug 2016

Modeling The Impact Of Battery Degradation Within Lifecycle Cost Based Design Optimization Of Heavy-Duty Hybrid Electric Vehicles, Ashish P. Vora

Open Access Dissertations

The optimal design of hybrid electric vehicle (HEV) powertrains from a systems perspective is critical to realize the maximum benefits for a given application. This is particularly true in the heavy-duty vehicle space where the major challenges are: (i) greater emphasis on economic viability, (ii) reluctance to take on risk associated with new technologies, and (iii) numerous diverse applications that preclude a one-size-fits-all approach to hybrid-electric powertrain design. Past studies on HEV powertrain design have either ignored battery degradation, or failed to holistically capture its impact from a lifecycle cost perspective. The focus of this effort is the development of ...


Test Cell Set-Up To Enable Drive-Cycle Testing Of A Variable Valve Actuation Enabled Camless Diesel Engine, Alexander Harrison Taylor Aug 2016

Test Cell Set-Up To Enable Drive-Cycle Testing Of A Variable Valve Actuation Enabled Camless Diesel Engine, Alexander Harrison Taylor

Open Access Theses

The previous facility which was used for engine testing at Purdue's Ray W. Herrick Laboratories utilized an eddy current dynamometer which is only suited for steady-state testing and throttle snaps. To better utilize a pre-existing camless diesel engine, which is is enabled via variable valve actuation, it was desired to perform transient drive-cycle tests. To accomplish this goal, a variable frequency drive AC dynamometer was required. Given that a brand new facility was constructed, the team was presented with an opportunity for ground up design of a test cell.

The new test cell's operation was proved out using ...


Transportation And Power Solutions For Africa: The Assessment And Optimization Of The Purdue Utility Platform, Jeremy Patrick Robison Apr 2016

Transportation And Power Solutions For Africa: The Assessment And Optimization Of The Purdue Utility Platform, Jeremy Patrick Robison

Open Access Theses

The Purdue Utility Platform (PUP) is an off-road utility vehicle that was created to improve agricultural productivity in sub-Saharan Africa by providing appropriate transportation and mobile power solutions. The vehicle design has matured to a level where it now requires more robust engineering tools to perform a rigorous assessment of its function. The assessment will be pursued in two areas: durability of the frame and the roll stability of the vehicle. To assess the durability of the frame, a data acquisition system was installed to collect strain gauge information during the vehicle’s operation. This data was then related to ...


Improvement Of Diesel Engines At High Speeds Via Flexible Valve Actuation And Cylinder Deactivation, Dina M. Caicedo Parra, Gregory M. Shaver, Aswin Ramesh Aug 2015

Improvement Of Diesel Engines At High Speeds Via Flexible Valve Actuation And Cylinder Deactivation, Dina M. Caicedo Parra, Gregory M. Shaver, Aswin Ramesh

The Summer Undergraduate Research Fellowship (SURF) Symposium

In the U.S fuel consumption is expected to increase over 20% from 2010 to 2020 especially in the heavy duty segment. As a consequence of the increase in production of heavy and light duty vehicles, regulations and stricter policies are being applied to the emissions of pollutants, including NOx, and soot. This study outlines strategies for using cylinder deactivation and intake valve closure (IVC) modulation to improve fuel economy and increase the rate at which NOx/soot-mitigating aftertreatment devices reach working temperatures. Effects of opening and squeezing variable geometry turbine (VGT) turbocharger were also analyzed. From the results it ...


The Effects Of Ivc Modulation On Modern Diesel Engines Equipped With Variable Valve Actuation At High Load And Speed, Troy E. Odstrcil, Gregory M. Shaver, Cody M. Allen Aug 2015

The Effects Of Ivc Modulation On Modern Diesel Engines Equipped With Variable Valve Actuation At High Load And Speed, Troy E. Odstrcil, Gregory M. Shaver, Cody M. Allen

The Summer Undergraduate Research Fellowship (SURF) Symposium

Modern diesel compression engines are known for their increased durability, fuel economy and torque when compared with their spark ignition gasoline counterparts. These are some of the reasons why diesel engines are preferred in heavy duty applications such as trains and semi-trucks. During the Heavy Duty Federal Test Procedure transient drive cycle, or HDFTP, nearly 85% of the total fuel burned is at speeds greater than 2000 revolutions per minute (RPM) for the studied engine. Therefore, it is desirable to increase the fuel economy at these loads and speeds. It is hypothesized that the use of late intake valve close ...


Test Rig Design For Compact Variable Displacement Vane Pump, Pratik Chawla, Ryan Jenkins, Monika Ivantysynova Aug 2015

Test Rig Design For Compact Variable Displacement Vane Pump, Pratik Chawla, Ryan Jenkins, Monika Ivantysynova

The Summer Undergraduate Research Fellowship (SURF) Symposium

Variable displacement vane pumps (VDVP) are one type of positive displacement pumps used in automatic transmission vehicles for lubricating the gears, cooling the transmission and actuating the clutches. Though fixed displacement pumps are widely used, they output a constant effective flow at a given speed. Depending on pump sizing considerations, the pump can be oversized at high speeds because flow demand of the transmission is independent of engine speed. The excess flow returns to the tank through an orifice that causes the oil to heat up, increasing the energy required for cooling and reducing the efficiency of the transmission. A ...


An Empirical Approach To The Re-Creation Of Vehicle Drive Cycles, Andrew J. Larson Apr 2015

An Empirical Approach To The Re-Creation Of Vehicle Drive Cycles, Andrew J. Larson

Open Access Theses

Vehicles such as buses, delivery trucks, mining equipment, and motorsport vehicles often repeat a highly defined pattern, route, or track during normal use. For these vehicles, standard dynamometer drive cycles are of little use. It was proposed that deriving a vehicle drive cycle from empirical data collected from on-board vehicle sensors would produce more accurate vehicle characteristic predictions for special purpose vehicles. This study answers the question "Is it possible to use recorded vehicle data to replicate a real world driving scenario for the purpose of vehicle diagnostics?" To reduce the complexity of the project, an electric go-kart was used ...


Algorithm Development And Analysis For Advanced Enginetechnologies Including Piezoelectric Fuel Injection And Variablevalve Actuation, Bradley W. Pietrzak Oct 2014

Algorithm Development And Analysis For Advanced Enginetechnologies Including Piezoelectric Fuel Injection And Variablevalve Actuation, Bradley W. Pietrzak

Open Access Theses

As vehicle emissions standards and fuel economy constraints become increasingly strict, the automotive industry must employ the use of advanced engine technologies to overcome these challenges. Fuel injection rate shaping and cylinder deactivation (CDA) are two such technologies, and both of them require the design and implementation of algorithms using various hardware and software tools.

Fuel injection rate shaping is one path towards cleaner and more efficient diesel engines. Piezoelectrically-actuated fuel injectors are well-suited for rate shaping operation, but are difficult to control. Control-related challenges arise primarily due to the lack of measurements available in a fuel injection system on-engine ...


Development Of Sound Quality Metrics For Gear Rattle In Diesel Engines, Brandon Sobecki Oct 2014

Development Of Sound Quality Metrics For Gear Rattle In Diesel Engines, Brandon Sobecki

Open Access Theses

Sound quality is an important factor in the design of competitive diesel engines. The noise produced by specific components and mechanisms in the engine can play a significant role in determining the perceived quality of the overall noise and in turn the perceived quality of the engine. The goal of the present research is to characterize the sounds produced by the phenomenon known as gear rattle and to develop a model that can be used to assess gear rattle levels in a way that connects directly with human perception of rattle. Most previous work in this area has been focused ...


High Voltage Rear Electric Drivetrain Design For A Parallelthrough-The-Road Plug-In Hybrid Electric Vehicle, Adam Garrett Fogarty Oct 2014

High Voltage Rear Electric Drivetrain Design For A Parallelthrough-The-Road Plug-In Hybrid Electric Vehicle, Adam Garrett Fogarty

Open Access Theses

Purdue University was selected as one of 15 universities to participate in a three year Advanced Vehicle Technology Competition (AVTC) called EcoCar2: Plugging Into the Future. The vehicle built by the Purdue team was a Parallel-Through-The-Road Plug-in Hybrid Electric Vehicle (PTTR PHEV). The vehicle utilized a B20 diesel powertrain to power the front wheels, as well as a custom electric drivetrain to power the rear wheels. Using this vehicle during the final year of the competition, the team was successful in placing 4th overall as well as 2nd in the category of Well-To-Wheel (WTW) Greenhouse Gas Emissions. A stock 2013 ...


No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou Apr 2014

No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou

Open Access Theses

Different DOC modeling methods are analyzed and compared. Detailed reaction mechanisms of DOC reaction are discussed and a new NO and NO2 modeling technique is proposed. Experiments are conducted measuring downstream DOC NO and NOx . DOC out NO and NO2 concentrations are modeled as a function of DOC temperature. A robust model is built such that with the input of real time NOx and DOC temperature information, DOC-out NO and NO2 concentrations can be precisely predicted.

As is true with many catalysts, the DOC thermally ages as it operates, which reduces the thermal effectiveness level of the catalyst. This directly ...