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Viewing 121 to 150 of 13331
2015-11-17
Technical Paper
2015-32-0719
Daniele Littera, Mark Nickerson, Alexander Kopache, G. Machamada, Chuankai Sun, A. Schramm, N. Medeiros, K. Becker, Nikolay Shkolnik, A. Shkolnik
The demand for lighter, smaller, more efficient, and more powerful engines calls for a rethinking of the traditional internal combustion engine (ICE). This paper describes development progress of LiquidPiston's small rotary engine, the XMv3, which operates on a Spark-Ignited (SI) variant of its patented High Efficiency Hybrid Cycle (HEHC). This thermodynamic cycle, which combines high compression ratio (CR), constant-volume combustion, and overexpansion, has a theoretical efficiency of up to 75 percent using air-standard assumptions and first-law analysis. XMv3 displaces 70cc (23cc per each of three working chambers) and is gasoline fueled. The engine is simple, having only two primary moving parts, which are balanced to prevent vibration.
2015-11-13
Article
The mixed-materials construction and the new C1XX platform enabled the development team to reduce base curb weight by 278 lb versus its predecessor and undercut its closest competitor, the mass-efficient (and shorter) Audi Q5, by a claimed 100 lb.
2015-11-13
Article
A book from SAE International, Fleet Services—Managing to Redefine Success, combines the interests of fleet managers and their customers to achieve a higher level of business performance.
2015-11-09
Article
Daimler Trucks North America has referred to its $40 million, five-year SuperTruck program that concluded earlier this year as “a playground for our engineers.” Overseeing this playground’s development and integration activities was Derek Rotz, the Principal Investigator who was hired in 2010 when the program kicked off. He spoke with SAE Magazines about the challenges, lessons learned, and their ongoing work.
2015-11-03
Magazine
Behind-the-scenes methods have made MRacing, the team from the University of Michigan-Ann Arbor, a consistent contender in the Formula SAE student design competition. Presenting their winning aero design to the SAE International Board of Directors, University of Akron students tell a story of engineering excellence and resiliency. Presenting their winning aero design to the SAE International Board of Directors, University of Akron students tell a story of engineering excellence and resiliency. Eleven students from Montreal university journey to Seattle for an education on aerospace technology and aerospace careers.
2015-11-03
Magazine
Active in aero Several automakers-notably Mercedes-Benz and Audi - used the Frankfurt Motor Show stage to reveal sleek vehicles that aggressively employ active aerodynamic elements and other advances to reduce drag. Composites permeate inside and out Composite materials are gaining popularity for both unseen structural components and for exterior eye candy. Powertrain testing: coping with complexity With increasing use of electrical components to extend the performance of conventional combustion engines, powertrain development has never been more complicated. The good news is that test and development engineers are harnessing advanced simulation techniques and computer processing to develop the most efficient and fun powertrains ever. Can ads help in vehicle-to-vehicle rollout? Porsche unveils new downsized, boosted 3.0-L boxer six. Johnson Controls, Faurecia envision interiors for autonomous driving. Jaguar enters performance crossover SUV segment.
2015-11-02
Article
Ongoing investments by parent Geely are pushing Volvo into the vanguard of autonomous driving, chassis sophistication, electrification...and even innovative reflective paint.
2015-10-30
Article
The product development process used online crowdsourcing for design input for a contest hosted by 3D-printed car upstarts Local Motors.
2015-10-21
Article
The 2016 SUV is nearly 300 lb (136 kg) lighter than its predecessor, yet maintains its high safety standard thanks to a new-generation ACE body structure and the available Honda Sensing suite of advanced safety and driver-assistance technologies. Honda also debuted its digital product development-and-manufacturing process with the new Pilot.
2015-10-21
Article
Aston Martin is on a straight route towards the introduction of a pure electric model; the replacement of all its current sports cars, starting with the DB11 next year; the addition of a production version of its DBX crossover concept, and development of an all-new V12 engine.
2015-10-21
Article
More vehicle launches and faster product cycles are re-shaping the global industry landscape, and putting increasingly greater pressure on the supply base, according to IHS Automotive analysts.
2015-10-21
Article
General Motors announced on October 20 that it is partnering with Korean electronics giant LG Corp. in development of the 2017 Chevrolet Bolt EV’s entire powertrain and other vehicle subsystems, in a new business relationship that GM engineering executives said could point to a new model for electrified vehicle development.
2015-10-21
WIP Standard
GEIAHB0007C
This handbook is intended to provide additional information on the use and tailoring of the data in GEIA-STD-0007. The standard provides a new approach to Logistics Support Analysis Record (LSAR) (i.e., MIL-STD-1388-2B) data with emphasis on data transfer (e.g., XML Schemas) versus data storage (e.g., relational tables). GEIA-STD-0007 identifies the range of logistics product data that is generated during the development and acquisition of a system or end item. It does not prescribe the supportability analyses required to generate logistics product data. How the data is generated via analysis techniques/tools, how it is stored and processed, and how the data is used to generate specific logistics support products, is left to the performing activity. GEIA-STD-0007 is a data transfer standard implementing the logistics data concepts of GEIA-STD-927, Common Data Schema for Complex Systems.
2015-10-21
WIP Standard
GEIASTD0007C
This standard defines logistics product data generated during the requirements definition and design of an industry or government system, end item or product. It makes use of the Extensible Markup Language (XML) through the use of entities and attributes that comprise logistics product data and their definitions. The standard is designed to provide users with a standard set of data tags for all or portions of logistics product data and customer defined sub-sets of logistics product data. The standard can be applied to any indsutry or government product, system or equipment acquisition program, major modification program, and applicable research and development projects. This standard is for use by both industry and government activities. As used in this standard, the requiring authority is generally the customer and the customer can be a government or industry activity. The performing activity may be either a industry or government activity.
2015-10-19
Article
Ricardo introduces a unique service to re-industrialize complex service parts with critical inventory shortages, leveraging expertise in low-volume and high-complexity powertrain sourcing.
2015-10-14
Article
Sachin Lawande explains how innovation will drive product technology at the revitalized supplier—and his plan includes adding Visteon's first-ever CTO.
2015-10-14
Article
The three arch-competitors formed the new CMC to speed development of intelligent bikes and their integration into the V2V and V2I ecosystem.
2015-10-13
WIP Standard
GEIASTD0008A
This Standard specifies the minimum derating requirements for using electronic components in moderately severe environments. These environments are assumed to include Airborne Inhabited Cargo (AIC), Airborne Inhabited Fighter (AIF), Ground Mobile (GM), and Naval Sheltered (NS) environments specified in MIL-HDBK-217. This Standard is intended to supersede the derating limits contained in Defense Standardization Program Office (DSPO) Standardization Directive SD-18, Naval Standard TE000-AB-GTP-010, and Air Force ESD-TR-85-148. It is intended that a future revision of this Standard will include additional requirements for derating for other environments (e.g. Airborne Uninhabited Cargo). Since this Standard specifies the minimum derating requirements, (sub)contractors may derate in excess of these requirements.
2015-10-07
Magazine
Tearing down the global barriers Steering systems are becoming increasingly sophisticated, as Ian Adcock discovers when talking to the men leading Nexteer's European expansion €1.1 billion worth of Bentley luxury Bentley's Bentayga is the first in a new generation of luxury cross-overs. Ian Adcock reveals its engineering secrets Goal: "virtual" perfection Should simulations be 100% accurate?
2015-10-01
Magazine
Finding success on an international track Student members of the University of Missouri's Formula SAE team are learning firsthand that international collaboration is the future of engineering. A vision. A car. A cause. New Mexico State Aggies are tough enough to race pink. CyberAuto Challenge helps close talent gap Having a supply of high-quality young engineers is key to beefing up the automotive industry's cyber defenses.
2015-10-01
Magazine
Powering on Rolls-Royce's Chief Engineer discusses how new technologies in the Trent XWB family of engines are inspiring current R&D design and evaluation work as part of its strategic roadmap for future big fanjets. Ongoing development work and associated test programs extend across a broad range of activities and involve many partners. Countering cybersecurity threats against unmanned vehicle systems Cranfield University researchers have developed a monitoring system whose purpose is to monitor mission profile implementation at both high level mission execution and at lower level software code operation to tackle specific threats of malicious code and possible spurious commands received over a vehicle's data links.
2015-09-29
WIP Standard
ARP6348
This document provides additional guidance on performing lifetime assessments and mitigations for ARP6338. It is intended for use by designers, reliability engineers, and others associated with the design, production, and support of electronic sub-assemblies, assemblies, and equipment used in ADHP applications.
2015-09-29
Technical Paper
2015-01-2860
Xinyu Ge, Jonathan Jackson
The application of Artificial Intelligence (AI) in the automotive industry can dramatically reshape the industry. In past decades, many Original Equipment Manufacturers (OEMs) applied neural network and pattern recognition technologies to powertrain calibration, emission prediction and virtual sensor development. The AI application is mostly focused on reducing product development and validation cost. AI technologies in these applications demonstrate certain cost-saving benefits, but are far from disruptive. A disruptive impact can be realized when AI applications finally bring cost-saving benefits directly to end users (e.g., automation of a vehicle or machine operation could dramatically improve the efficiency). However, there is still a gap between current technologies and those that can fully give a vehicle or machine intelligence, including reasoning, knowledge, planning and self-learning.
2015-09-29
Technical Paper
2015-01-2844
Majeed Nader, John Liu
Abstract The EU emergency call (eCall) system is used as a vehicle emergency telematic system to reduce the fatalities and save more lives in vehicular incidents. We have designed and implemented the CRC module for the in-vehicle system (IVS) of the EU eCall on an FPGA device. As the CRC is a crucial part of the system to detect bit errors during the transmission, this paper presents the hardware design procedures of the CRC module. The system reads the 1120 serial input bits of the Minimum Set of Data (MSD), calculates the 28-bits of the CRC parity bits, and generates the MSD appended with CRC as the output signal that is consisting of 1148 serial bits. The system is designed in Verilog HDL, compiled, synthesized, and simulated for different MSDs. The results are shown and analyzed for varied applied MSDs. The flowchart of the implemented algorithm is illustrated and discussed.
2015-09-29
Technical Paper
2015-01-2865
Damodar Kulkarni, Pankaj Deore
Abstract Cost-reduction and cost competitiveness have emerged as major strategic tools to an enterprise and are being used all over the world to fight for survival as well as maintain sustainable growth. Maximization of value-creation by enriching the planet, people and the economy should be the key drivers leading to cost-reduction strategies in any business. The main objectives of this paper are to explain the Processes and Principles of Cost-reduction in technology-transfer to low-cost emerging economies to achieve sustainable cost-reduction and create a culture of cost-consciousness throughout an organization.
2015-09-29
Technical Paper
2015-01-2864
Xinyu Ge, Jarrett Corcoran, Paul Gamble
With stringent emission regulations, many subsystems that abate engine tailpipe-out emissions become a necessary part for engines. The increased level of complexity poses technical challenges for the quality and reliability for modern engines. Among the spectrum of quality control methodologies, one conventional methodology focuses on every component's quality to ensure that the accumulative deviation is within predetermined limits. This conventional methodology tightens the component tolerance during the manufacturing process and typically results in increased cost. Another conventional methodology that is on the other side of the spectrum focuses on tailoring an engine calibration solution to offset the manufacturing differences. Although the tailored engine calibration solution reduces manufacturing cost for components, it increases the development and validation cost for engines.
2015-09-29
Technical Paper
2015-01-2863
Yogesh Sharma, Rohit Kumar Garg, Rishabh Raj Bhargava, Aadityeshwar Saran Singh Deo, Aditya Krishna, Shubham Garg, Rahul Mehendiratta, Ankit Goila
There has been a rapid increase in popularity of multipurpose All-terrain vehicles (ATV) across the globe over the past few years. SAE BAJA event gives student-community an opportunity to delve deeper into the nitty-gritty of designing a single seat, four-wheeled off road vehicle. The design and development methodology presented in this paper is useful in conceptualization of an ATV for SAE BAJA event. The vehicle is divided into various subsystems including chassis, suspension, drive train, steering, and braking system. Further these subsystems are designed and comprehensively analyzed in software like SolidWorks, ANSYS, WINGEO and MS-Excel. The 3-D model of roll cage is designed in SolidWorks and analyzed in ANSYS 9.0 for front, rear and side impact along with front and side roll-over conditions. Special case of wheel bump is also analyzed. Weight, wall thickness and bending strength of tubing used for roll cage are comprehensively studied.
2015-09-29
Technical Paper
2015-01-2886
Kebing Tang, Li He, Yao Zhao, Heinz Friz, Bo Li
Abstract The development of a new Dongfeng Heavy truck had very strict targets for fuel consumption. As the aerodynamic drag plays a crucial role for the fuel consumption, a low drag value had to be achieved. It was therefore essential to include evaluation and optimization of the aerodynamics in the development process. Because wind tunnel facilities were not available, the complete aerodynamics development was based on digital simulation. The major portion of the aerodynamic optimization was carried out during the styling phase where mirrors, sun visor, front bumper and aero devices were optimized for drag reduction. For optimizing corner vanes and mud guards, self-soiling from the wheel spray was included in the analysis. The aero results did also show that cooling air flow rates are sufficiently high to ensure proper cooling. During the detailed engineering phase an increase of the drag above the target required further optimization work to finally reach the target.
2015-09-29
Technical Paper
2015-01-2878
Peter Subke, Michael Eberl
Abstract SAE J1939 is the synonym for a CAN-based in-vehicle network for heavy-duty road-vehicles (trucks and buses) and non-road mobile machinery (NRMM). The SAE J1939 standards collection consists of 18 parts and 2 digital annexes. SAE J1939-21 (Data Link Layer) describes the data link layer using the CAN protocol with 29-bit identifiers, SAE J1939-73 (Application Layer – Diagnostics) includes the specification of diagnostic messages (DMs). The software components of external test equipment can be described by software interfaces (APIs). ISO 22900 (Modular Vehicle Communication Interface) contains the description of the D-Server that comes with the D-Server API for the diagnostic application and the D-PDU API for the connection to the in-vehicle network (e.g. CAN). ISO 22901-2 (D-PDU API) references SAE J1939-73 and SAE J1939-21 as “Truck and Bus CAN”. D-Server based external test equipment is powered by data which is described in ODX.
2015-09-29
WIP Standard
J386
This standard provides performance and test requirements for operator restraint systems provided for off-road self-propelled work machines. This document applies to pelvic restraint systems (Type 1) for off-road, self-propelled work machines fitted with ROPS and commonly used in construction, earthmoving, forestry, and mining as referred to in SAE J1040 and industrial machines fitted with ROPS as referred to in SAE J1042.
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