Browse Topic: Haptic / touch

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A Haptic Patch Can Transmit Complex Information to a Wearer’s SkinTBMG-5224812/12/2024
Global Vehicle Vibration Enhancement Using Circular Force Technology2025-01-001505/05/2023
In addition to safety advantages, sound and vibration are being utilized to enhance the driver experience in Electric Vehicles (EVs). Significant interest and investment continue to grow in utilizing interior and exterior sound for pedestrian safety and driver awareness of vehicle state, as well as enabling a unique personal EV audio experience for brand recognition both inside and external to the vehicle. Several automakers are also using audio to simulate virtual gear shifting and as well as manual transmissions in EVs. According to several automotive industry articles and market research, the audio enhancements alone, without the vibration that drivers are accustomed to in combustion engine vehicles, are not sufficient to meet the engagement, excitement, and emotion that driving enthusiasts expect. In this paper, we introduce the use of new automotive high-force compact light-weight circular force generators for globally shaking vehicles. The technology was developed originally for
Norris, Mark A., Orzechowski, JEFFREY, Sanderson, Brad, Swanson, Douglas, vantimmeren, Andrew
Low Frequency Modal Management of a Tata Premium Hatchback Car2022-01-036203/29/2022
Tactile feel of vehicle touch points is one of the important criteria of the customer choice while making the buying decisions in the dealership or on a test drive. This tactile feel of a vehicle is majorly governed by the low frequency mode management achieved while designing the vehicle. Different parameters like inclusion of multiple powertrains on a vehicle program, choice of multiple way seating different at driver’s, front passenger’s and rear passengers’ seating positions, instrument panel and steering system designs having higher torque delivery, suspension modes of the front and rear axles based on their articulation and degree of independency, global modes of the vehicle body, the cabin air cavity configuration and volume, etc. play a significant role in deciding this tactile feel of the vehicle being designed. How these parameters were tuned and designed while developing a Tata premium hatchback car has been elucidated with different subsystem development examples. The
Pol, Atul Devidas
Interior Floor Engineering: Acoustic vs. Compression Performance2021-01-112908/31/2021
The interior floor of a vehicle cabin occupies a significant amount of surface area in proportion to the cabin as a whole, and as such provides a prime opportunity for acoustic treatment. Generally speaking, floor materials must be relatively limp to achieve high acoustic performance. However, the tactile quality of a vehicle floor is very important. The end customer has an expectation for how it should feel to step onto the floor of a vehicle: a carpet should “give” slightly, but not compress fully, under pressure. A carpet that is too stiff or not stiff enough may be perceived as indicative of low quality. Thus, acoustic targets and stiffness targets tend to be at odds. A vehicle interior floor is a trim component which consists of different layers and which can have different pile-up configurations. Such a pile-up typically consists of a soft layer, called a decoupler, and a top layer. Previous work has shown how CAE tools can predict part-level compression behavior during design
Frey, Andrea, Koeske, Ben, Li, Wanlu, Wichmann, Brandon
Negotiating the Steering Control Authority within Haptic Shared Control Framework2020-01-103104/14/2020
This paper presents an adaptive haptic shared control framework wherein a human driver and an automation system are physically connected through a motorized steering wheel. By haptic feedback, the driver and automation system can monitor each other actions and can still intuitively express their control intentions. The focus of this project is to develop a systematic model for an automation system that can vary its impedance such that its interaction with a human partner occurs as smoothly as that same interaction would between two humans. To this end, we define four types of conflicts between the human and the automation system. A cost function is then defined to ensures the safety of the collaborative task but also takes account for the assistive behavior of the automation system. We employed a predictive controller based on modified non-negative least square to modulate the automation system impedance such that the cost function is optimized. The results demonstrate that the
Izadi, Vahid, Ghasemi, Amir H., Karimi Shahri, Pouria
Highly Sensitive Sensors Show Promise in Enhancing Human TouchTBMG-3642704/01/2020
People rely on a highly tuned sense of touch to manipulate objects, but injuries to the skin and the simple act of wearing gloves can impair this ability. Surgeons, for example, find that gloves decrease their ability to manipulate soft tissues. Astronauts are also hampered by heavy spacesuits and find it difficult to work with equipment while wearing heavy gloves.
Q&A: Electrically Conductive Coated Yarn for Wearable, Washable FabricsTBMG-3598202/01/2020
Professor Genevieve Dion, Director of Drexel University's (Philadelphia, PA) Center for Functional Fabrics, is collaborating with other experts to coat yarn with the highly conductive, two-dimensional material MXene. They demonstrated that the yarn could be used with standard textile manufacturing techniques to create wearable conductive fabric.
Skin-Like Sensors Bring a Human Touch to Wearable TechTBMG-3601102/01/2020
University of Toronto engineering researchers have developed a super stretchy, transparent, and self-powering sensor that records the complex sensations of human skin. Dubbed artificial ionic skin — or AISkin for short — the researchers believe the innovative properties of AISkin could lead to future advancements in wearable electronics, personal health care and robotics.
VR Helps Amputees ‘Feel’ Prosthetic LimbsTBMG-3563412/01/2019
Scientists have shown that amputees can actually be convinced that the prosthetic hand belongs to their own body. They do this by going beyond the “seeing is believing” idiom based on established research on how the brain identifies what belongs to its own body. Instead of using the sense of sight alone, they used an astute combination of two senses: sight and touch.
Artificial Skin Creates Ticklish DevicesTBMG-3562412/01/2019
A new interface takes touch technology to the next level by providing an artificial skin-like membrane for augmenting interactive devices such as phones, wearables, or computers.
Biologically Inspired Artificial Skin Improves Sensory Ability of RobotsTBMG-3561112/01/2019
Inspired by human skin, a system was developed that combines artificial skin with control algorithms. The system was used to create the first autonomous humanoid robot with full-body artificial skin.
Role of Dynamic Stiffness in Effective Isolation2019-01-149506/05/2019
In any machinery, avoiding noise and vibration completely is a difficult task due to the structural dynamic behaviors of components. To safeguard the operator, it is important to best isolate the operator station from NVH environment. Cabin isolation is an important aspect to minimize structure borne noise and tactile vibrations to be transferred into the cabin. Isolators are selected based on the isolation system inertial properties at mounting locations in the operating frequency range interested. The most important assumption to select isolators are that the active side and passive side of the isolators are nearly rigid so impedance mismatch is created for effective isolation. This paper describes the importance of dynamic stiffness of the structures on both the active and passive side for better NVH performance. NVH performance of passive side is evaluated analytically and computationally in terms of tactile vibrations and structure borne noise for various ratios of the dynamic
Dasabai, Balavardhan Reddy, Yang, Yuzhen
Helicopter Load SensorTBMG-3453206/01/2019
Sensor Technology Ltd. Banbury, Oxon, UK 01869 238400
Transparent, Self-Healing Electronic SkinTBMG-3441105/01/2019
Scientists have taken inspiration from underwater invertebrates like jellyfish to create an electronic skin with similar functionality. Like a jellyfish, the electronic skin is transparent, stretchable, touch-sensitive, and self-healing in aquatic environments.
Detection of Presence and Posture of Vehicle Occupants Using a Capacitance Sensing Mat2019-01-123204/02/2019
Capacitance sensing is the technology that detects the presence of nearby objects by measuring the change in capacitance. A change in capacitance is triggered either by a change in dielectric constant, area of overlap or distance of separation between the electrodes of the capacitor. It is a technology that finds wide use in applications such as touch screens, proximity sensing etc. Drawing motivation from such applications, this paper investigates how capacitive sensing can be employed to detect the presence and posture of occupants inside vehicles. Compared to existing solutions, the proposed approach is low-cost, easy to deploy and highly efficient. The sensing system consists of a capacitance-sensing mat that is embedded with copper foils and an associated sensing circuitry. Inside the mat the foils are arranged in rows and columns to form several touch-nodes across the surface of the mat. The system segregates row and column capacitances from each other and computes their tensor
Prasanna Kumar, Rahul, Melcher, David, Buttolo, Pietro, Jia, Yunyi
Wearable Devices Allow Direct Communication by TouchTBMG-3415504/01/2019
Emergency situations such as trying to escape heavy smoke from fire could leave the sense of touch as the only way to find an exit. Rather than trying to look at a smartphone screen, a smartwatch — alerted by the same alarms — begins “speaking” through the wearer’s skin, giving directions with coded vibrations, squeezes, and tugs with meanings as clear as spoken words. In other scenarios, a surgeon or a pilot might find it useful to have another channel of communication.
Streamlined HMIs do more with less19TOFHP04_0804/01/2019
The phrase “less is more” has been a major part of human-machine interface (HMI) designs for several years as developers traded multiple knobs and buttons for cleaner input techniques. However, the push to simplify the control's look and feel is offset by the need to let drivers and operators manage more things, often with redundant input techniques. The growing number of electronic features and functions comes as vehicle buyers demand controls that can be learned quickly. This need to manage more complex tasks without much training marks a major change from the era when operators slowly learned how to maneuver mechanical controls. New designs will need to further simplify the vehicle environments designed to provide more digital functionality.
Costlow, Terry
Enabling Expanded Aerospace Automation Using Tactile Cognition Analytics2019-01-136003/19/2019
Aerospace assembly operations are still highly dependent on human labor and processes. This paper will describe and illustrate the transformational technologies that will enable replication of the human cognitive (in context) textural ability to assemble airplane and space structure. The paper will also provide use case examples where these innovative technologies have been applied successfully. Without context, data are just dots, floating around without meaning. With context data becomes an enlightened component of knowledge that brings value to information. In-context enlightened knowledge provides manufacturing visibility within factory operations. Visibility is a key component of the Smart, Brilliant, or Intelligent Factory.
Bullen, George Nicholas
Ultralight Gloves Provide Realistic Haptic FeedbackTBMG-3338212/01/2018
Engineers and software developers are seeking to create technology that lets users touch, grasp, and manipulate virtual objects while feeling like they are actually touching something in the real world. An ultralight glove — weighing less than 8 grams per finger — was developed that enables users to feel and manipulate virtual objects. The system provides extremely realistic haptic feedback and could run on a battery, allowing for freedom of movement.
WHAT WE'RE DRIVING18AUTP10_0510/01/2018
Mercedes-Benz is fond of saying it cascades at least some of the S-Class' posh luxury and technology throughout its range. That's just what it has done for the fourth-generation A-Class, the nameplate that sits at the bottom of the brand's lineup. The new A-Class is heaped with cabin tech, in particular. Built on Mercedes' MFA2 front-wheel-drive platform, the A200 AMG Line version driven is well-connected, having the MBUX (Mercedes-Benz User Experience) touchscreen interface (and a touchpad), plus “Hey Mercedes” voice recognition.
Sensory Device Aids AmputeesTBMG-3281109/01/2018
Sensory feedback — achieved by direct interfaces attached to the nerves — fundamentally changed how study participants used their mechanical attachment, “transforming it from a sporadically used tool into a readily and frequently used ‘hand.’”
Bringing a Human Touch to Modern ProstheticsTBMG-3245808/01/2018
Amputees often experience the sensation of a “phantom limb”—a feeling that a missing body part is still there. That sensory illusion is closer to becoming a reality thanks to a team of engineers at Johns Hopkins University that have created an electronic skin. When layered on top of prosthetic hands, this e-dermis brings back a real sense of touch through the fingertips.
Design Issues with Wearables From the Perspective of Electromechanical ComponentsTBMG-2970807/01/2018
Life Alert's “I've fallen and I can't get up®!” became one of the most famous infomercial catchphrases in the late 1980s. The company's device, targeted at senior citizens, provided users at the time with the simple, yet revolutionary ability to call for emergency assistance at the push of a button. As you may have guessed, this was one of the first mass-produced medical wearables available on the market.
Prosthetic Arms Provide Controlled Sensory FeedbackTBMG-2913806/01/2018
Researchers have developed a control algorithm that regulates current so that a prosthetics user feels steady sensation, even when the electrodes begin to peel off or when sweat builds up.
Force Sensing — An Addition to the Physical Therapy ToolboxTBMG-2900806/01/2018
Undergoing treatment for a physical injury or condition can be a long and frustrating experience. Broken bones, sprains, torn muscles or ligaments, as well as painful conditions that have developed over time, like carpal tunnel syndrome, need customized treatments. Physical therapists could benefit from a measurement-based approach to retraining patients for proper movement and mechanics.
Evaluation of Alternative Steering Devices with Adjustable Haptic Feedback for Semi-Autonomous and Autonomous Vehicles2018-01-057204/03/2018
Emerging autonomous driving technologies, with emergency navigating capabilities, necessitates innovative vehicle steering methods for operators during unanticipated scenarios. A reconfigurable “plug and play” steering system paradigm enables lateral control from any seating position in the vehicle’s interior. When required, drivers may access a stowed steering input device, establish communications with the vehicle steering subsystem, and provide direct wheel commands. Accordingly, the provision of haptic steering cues and lane keeping assistance to navigate roadways will be helpful. In this study, various steering devices have been investigated which offer reconfigurability and haptic feedback to create a flexible driving environment. A joystick and a robotic arm that offer multiple degrees of freedom were compared to a conventional steering wheel. To evaluate the concept, human test subjects interacted with the experimental system featuring a driving simulator with target hardware
Wang, Chengshi, Wang, Yue, Wagner, John R.
Impact of In-Vehicle Touchscreen Size on Visual Demand and Usability2017-01-198409/23/2017
Given the wide adoption of touchscreens in vehicles, an interesting debate is taking place regarding the good screen size, length-width ratio and whether the usability of in-vehicle information system (IVIS) would be decreased by a larger screen, especially. Moreover, the lack of scientific evidence about the concrete impact of touch screen size on usability raises questions to practitioners. In this paper, we investigated the impact of in-vehicle touch screen size on users’ visual behavior and usability as measured using eye tracker and questionnaire. Two experiments were conducted on 30 participants. In the first experiment, participants were asked to seek same information on four different in-vehicle screens based on simulated driving environment, while eye movement was recorded for analyzing efficiency of visual behavior. In the second experiment, as secondary driving tasks tested in real driving environment, touch operations of same functions were implemented, including calling
Ma, Jun, Li, Junyi, Gong, Zaiyan, Yu, Jihong
Thin-Silicon Implantable Chip Gives Patients More Control over Haptic ProstheticsTBMG-2724307/01/2017
ImecAntwerp, Belgium For more info click .
Solar-Powered Skin Offers New Possibilities for ProstheticsTBMG-2700406/01/2017
Anew way of harnessing the sun's rays to power ‘synthetic skin’ could help to create advanced prosthetic limbs capable of returning the sense of touch to amputees. Engineers from the University of Glasgow, who have previously developed an ‘electronic skin’ covering for prosthetic hands made from graphene, have found a way to use some of graphene's remarkable physical properties to use energy from the sun to power the skin.
Gesture-Based Controls for Robots: Overview and Implications for Use by SoldiersTBMG-2682505/01/2017
Afuture vision of the use of autonomous and intelligent robots in dismounted military operations is for soldiers to interact with robots as teammates, much like soldiers interact with other soldiers. Soldiers will no longer be operators in full control of every movement, as the autonomous intelligent systems will have the capability to act without continual human input. However, soldiers will need to use the information available from, or provided by, the robot. One of the critical needs to achieve this vision is the ability of soldiers and robots to communicate with each other. One way to do that is to use human gestures to instruct and command robots.
Gesture-Based Controls for Robots: Overview and Implications for Use by Soldiers17AERP05_0605/01/2017
Developing a more effective means to communicate with robotic devices. Army Research Laboratory, Aberdeen Proving Ground, Maryland A future vision of the use of autonomous and intelligent robots in dismounted military operations is for soldiers to interact with robots as teammates, much like soldiers interact with other soldiers. Soldiers will no longer be operators in full control of every movement, as the autonomous intelligent systems will have the capability to act without continual human input. However, soldiers will need to use the information available from, or provided by, the robot. One of the critical needs to achieve this vision is the ability of soldiers and robots to communicate with each other. One way to do that is to use human gestures to instruct and command robots. The use of gestures as a natural means of interacting with devices is a very broad concept that encompasses a range of body movements, including movements of the hands, arms, and legs, facial expressions
Commando HelicopterTBMG-2675804/01/2017
Leonardo-Finmeccanica Rome, Italy +39 06 32473313
TOUCH TAKES HOLD, switches lend a hand16OFHP10_0710/01/2016
Touch screens are becoming the norm, but knobs and switches are often used to improve operator comfort. System developers are leaving no technology unturned in their effort to boost performance by improving comfort. Touch screens dominate human-machine interface (HMI) development, but rotary knobs and push buttons remain relevant, as do joysticks, which could replace steering wheels. The electronic systems in cabs are evolving to meet expectations of operators used to the convenience of handheld electronics. However, evolving control strategies can't discount user's familiarity with knobs and buttons.
Costlow, Terry
The Dimensional Model of Driver Demand: Extension to Auditory-Vocal and Mixed-Mode Tasks2016-01-142704/05/2016
The Dimensional Model of Driver Demand is extended to include Auditory-Vocal (i.e., pure “voice” tasks), and Mixed-Mode tasks (i.e., a combination of Auditory-Vocal mode with visual-only, or with Visual-Manual modes). The extended model was validated with data from 24 participants using the 2014 Toyota Corolla infotainment system in a video-based surrogate driving venue. Twenty-two driver performance metrics were collected, including total eyes-off-road time (TEORT), mean single glance duration (MSGD), and proportion of long single glances (LGP). Other key metrics included response time (RT) and miss rate to a Tactile Detection Response Task (TDRT). The 22 metrics were simplified using Principal Component Analysis to two dimensions. The major dimension, explaining 60% of total variance, we interpret as the attentional effects of cognitive demand. The minor dimension, explaining 20% of total variance, we interpret as physical demand. The 22 metrics were well segmented into three groups
Young, Richard, Hsieh, Li, Seaman, Sean
Target setting and structural design of an EPS-in-the-Loop test bench for steering feeling simulation2016-01-155904/05/2016
The adoption of Electrical Power Steering (EPS) systems has greatly opened up the possibilities to control the steering wheel torque, which is a critical parameter in the subjective and objective evaluation of a new vehicle. Therefore, the tuning of the EPS controller is not only becoming increasing complicated, containing dozens of parameters and maps, but it is crucial in defining the basic DNA of the steering feeling characteristics. The largely subjective nature of the steering feeling assessment means that EPS tuning consists primarily of subjective tests on running prototypes. On account of that, this paper presents an alternative test bench for steering feeling simulation and evaluation. It combines a static driving simulator with a physical EPS assisted steering rack. The end goal is to more accurately reproduce the tactile feedback to the driver by including a physical hardware in lieu of complicated and difficult to obtain software models. The focus of the activity in this
Vinattieri, Francesco, Wright, Tim, Capitani, Renzo, Annicchiarico, Claudio, Danisi, Giacomo
Distributed User Interface Management System for Interactive Collaborative EnvironmentsTBMG-2389002/01/2016
The Ground Systems Development and Operations (GSDO) Smart Firing Room Project aims to create a firing room using cutting-edge technologies of today that are expected to be the state-of-the-art for the 2020s. One aspect of this project is providing a seamless Interactive Collaborative Environment (ICE) across a diverse array of user-facing devices — numerous screens of varying sizes, personal mobile devices, and natural user interface (NUI) sensors for multi-touch, gesture, and voice inputs. Applications accessible through the ICE are expected to provide Distributed User Interfaces (DUIs) that support collaborative features such as sharing applications with remote users, multi-user interaction for collaborative editing, and modular User Interfaces (UIs) to support customized workspaces spread across multiple devices. Using current technologies, developing an application with a DUI supporting such a wide variety of platforms is extremely costly due to the tight coupling between UIs
Visualization and Introspection for Teleoperation of Robotic SystemsTBMG-2323311/01/2015
The Space Exploration and Analysis Simulations (SEAS) project at JPL performs analysis of advanced mission and system concepts on behalf of NASA. One of the concepts being explored involves operation of robotic rovers on the Moon from a remote operator station located either at a Lunar Lagrange point (L2) halo orbit, or on Earth. Another concept is the use of teleoperation to inspect asteroids.
Testing Touch Screens in Realistic Aeronautic Turbulent Conditions (Light to Severe)2015-01-253209/15/2015
As touch screens are everywhere in the consumer market Thales has launched in depth evaluations on their introduction in the cockpit. One of the challenges is to verify its compatibility with in flight use under turbulence conditions, including light, moderate and severe. In flight accelerometer collections were performed to provide us with a baseline for choosing between possible simulation solutions. Thales recognized early on the need for such a tool as it would enable us to define recommendations for our HMI designs. The objectives were first to validate specific complex touch/gestures using all the potential of touch interactions for novel cockpit Human Machine Interfaces and second to look into the various physical anchoring solutions capable of facilitating touch screens interactions in aeronautical turbulent environments. Given the 6 axis accelerometer profiles that were collected, only an hexapod structure was capable of reproducing those profiles with acceptable validity
Hourlier, Sylvain, Guérard, Sandra, BAROU, Jean Luc, Servantie, Xavier
A Projected Capacitive Touchscreen Operating under High Intensity Radiated Field2015-01-253309/15/2015
Projected capacitive touchscreen (PCAP) became popular thanks to the introduction of the Apple iPhone, iPad and iPod. Electrical field generated for touch detection is known to be impaired by external fields, for example Cold Cathode Fluorescent Lamp, USB charger or AMLCD driving. Commercial product shall live with this issue, but the high intensity radiated field required for avionics application is several orders of magnitude higher than required for commercial product. In such an environment, standard touchscreens could have hazardous behavior. Thanks to the unique 20 years' experience on projected capacitive technology (Aircraft fighter), we designed a new projected capacitive touchscreen, based on a ruggedized touch controller and dedicated ASIC, able to operate in extreme electromagnetic environment. Qualification tests performed on our touchscreen show a great immunity to electromagnetic radiated electric fields up to 6000V/m (DO160 Section 20, cat L), suitable for the most
Coni, Philippe, Merino, Frederic, Renaud, Frederic
SAE Eye on Engineering: Haptic Feedback Displays1201706/12/2015
Touch screens have become a common interface between drivers and their vehicle. But touch screens can also be distracting. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Continental Automotive's new haptic feedback display.
Hard to answer15MEIP03_0203/01/2015
Technical and personal issues make it challenging to link smartphones to vehicles. Human-machine interfaces (HMIs) are quickly evolving as smartphones and apps enter vehicles. Developers are allowing multiple ways for drivers to interact with apps and phones, knowing that a well-designed HMI can be a significant differentiator while a problematic HMI can become fodder for highly-publicized criticism. The tightening link between cars and consumer devices is challenging vehicle designers who must adopt consumer technologies for control. Most executives agree that a range of control and display technologies will be needed to manage apps and phones.
Costlow, Terry
The Touch Screen RevolutionTBMG-2154502/01/2015
Touch screens are slowly but surely creeping into every aspect of our day-to-day lives. It’s not unlikely that you wake up to a cellphone alarm, adjust the room temperature on a thermostat, change the radio station in the car, and even start the washing machine using only a touch screen. A decade ago, we wouldn’t have used a touch screen for any of these tasks, but today it’s commonplace. To understand the impact of touch screens on test and measurement, you must first know the difference between resistive and capacitive touch screens, and the impact smartphones have had on touch screen implementations.
Hard to answer15AUTD01_0101/01/2015
Technical and personal issues make it challenging to link smartphones to vehicles. Human-machine interfaces (HMIs) are quickly evolving as smartphones and apps enter vehicles. Developers are allowing multiple ways for drivers to interact with apps and phones, knowing that a well-designed HMI can be a significant differentiator while a problematic HMI can become fodder for highly-publicized criticism. The tightening link between cars and consumer devices is challenging vehicle designers who must adopt consumer technologies for control. Most executives agree that a range of control and display technologies will be needed to manage apps and phones.
Costlow, Terry
Integrated Technologies Take Medical Device Development to the Next LevelTBMG-2007607/01/2014
According to the Journal of Patient Safety, a whopping 210,000 to 440,000 deaths attributable to medical errors occur in hospitals every year. Clearly, there is a desperate need for technology to take a leading role in medical device development in order to improve patient outcomes and save money. The two emerging technologies in the medical space are context-aware technology and multi-input technology.
Combination of Test with Simulation Analysis of Brake Groan Phenomenon2014-01-086904/01/2014
During a car launch, the driving torque from driveline acts on brake disk, and may lead the pad to slip against the disk. Especially with slow brake pedal release, there is still brake torque applies on the disk, which will retard the rotation of disk, and under certain conditions, the disk and pad may stick again, so the reciprocated stick and slip can induce the noise and vibration, which can be transmitted to a passenger by both tactile and aural paths, this phenomenon is defined as brake groan. In this paper, we propose a nonlinear dynamics model of brake for bidirectional, and with 7 Degrees of Freedom (DOFs), and phase locus and Lyapunov Second Method are utilized to study the mechanism of groan. Time-frequency analysis method then is adopted to analyze the simulation results, meanwhile a test car is operated under corresponding conditions, and the test signals are sampled and then processed to acquire the features. Finally, the results of the simulation and those of the test are
Wu, Guangqiang, Jin, Shuyi
Wearable Nanowire Sensors Hold Promise for ProstheticsTBMG-1900101/21/2014
A team of scientists at North Carolina State University, Raleigh, used silver nanowires to develop wearable, multifunctional sensors that, they say, could be used in biomedical applications, including new prosthetics or robotic systems. The sensors can measure strain, pressure, human touch, and bioelectronic signals such as electrocardiograms.
Processing CSeries Aircraft Panels2013-01-214909/17/2013
Bombardier faced new manufacturing process challenges drilling and fastening CSeries* aircraft panels with multi-material stacks of composite (CFRP), titanium and aluminum in which Gemcor responded with a unique, flexible CNC Drivmatic® automatic fastening system, now in production at Bombardier. This joint technical paper is presented by Bombardier, expounding on manufacturing process challenges with the C Series aircraft design requirements and Gemcor presenting a unique solution to automatically fasten CFRP aft fuselage panels and aluminum lithium (Al Li) cockpit panels with the same CNC Drivmatic® system. After installation and preliminary acceptance at Bombardier, the CNC system was further enhanced to automatically fasten the carbon fiber pressure bulkhead dome assembly.
Barton, Eric, Rummell, Thomas, Grenier, Daniel
HMI Design for Increasing Vehicle Energy Efficiency by Affecting Driving Habits2013-01-057004/08/2013
Wayne State University EcoCAR2 team is designing and modifying a GM-donated Chevrolet Malibu 2013 to a Parallel-Through-The-Road (PTTR) plug-in hybrid. A Freescale-donated Center Stack Unit (CSU) touchscreen display is used for Human Machine Interface (HMI). Surveys were conducted to better understand CSU functionality expectations. One required function was increasing driving efficiency. Other hybrid and electric vehicles HMI systems present driving and environmental settings efficiencies such as average fuel economy, lifetime fuel economy, electric charge used, fuel used, distances driven on each power source, instantaneous power gauge and instantaneous driver efficiency gauge. These offer drivers a large sum of information but with no provision to analyze and improve one's driving habits unless one has the required knowledge to understand the causes behind the values presented. While all these will still be available, the team seeks to incorporate the latter by adopting a debrief
Regev, Idan David, Ku, Jerry
A Study of Layout Regarding Integrated Controls on the Steering Wheel2013-01-003603/25/2013
In order to utilize in-vehicle systems efficiently, many vehicles are becoming equipped with integrated controls near the center fascia or the control box. However, the placement of these control systems can cause safety issues and risks due to visual distractions. In this study, we proposed a new integrated touch screen on the steering wheel. For this experiment, a control system was placed on the steering wheel or the center fascia. 15 participants were required to drive while utilizing vent and navigation control tasks regarding four different locations. Three of these locations were based on the steering wheel (center, upper right, lower right) and one location on the center fascia. Afterwards, the task completion time and visual distraction rate of the different locations were measured and compared. The results showed that a touch screen placed on the upper right section of the steering wheel had better performance and lower user discomfort.
Lee, Yong, Nam, Jongyong, Jung, Eui-seung, Lim, Youngjae, Jung, Sung wook, Chung, David
ASSEMBLED COUPLING, THREADLESS-FLEXIBLE, FIXED CAVITY, CURRENT CARRYING, SELF BONDING, ENVELOPE DIMENSIONSAS5831 (Current)01/09/2013
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
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