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Page 1 April 8, 2011 Cellar Conference 2011 Thomas Seder, PhD Human Machine Interface General Motors Global R&D April 8, 2011 Vehicle Cockpit Design that.

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Presentation on theme: "Page 1 April 8, 2011 Cellar Conference 2011 Thomas Seder, PhD Human Machine Interface General Motors Global R&D April 8, 2011 Vehicle Cockpit Design that."— Presentation transcript:

1 Page 1 April 8, 2011 Cellar Conference 2011 Thomas Seder, PhD Human Machine Interface General Motors Global R&D April 8, 2011 Vehicle Cockpit Design that Accommodates Human Age-Related Performance Depreciation

2 Page 2 April 8, 2011 Cellar Conference 2011 Describe research motivation, goals & approach Present a framework for indentifying addressable issues Provide an overview of age-related performance depreciation issues Discuss our design philosophy and a set machine interface design guidelines Present a concept vehicle HMI that accommodates age- related human performance depreciation Outline aged driver interface vision accommodative  prescriptive  therapeutic

3 Page 3 April 8, 2011 Cellar Conference 2011 Motivation Delay driving cessation to maintain quality of life 71.5 Million, 20% of Population 65+ yr highly represented & growing fraction of population Crashes/ mile driven increases at ~age 65 Quality of life diminishes when ‘keys are taken away’ Reduced socialization  depression Missed Dr visits & reduced exercise  health decline Lost sense of freedom loss that was represented by mobility Number of people 65+ over timeCrashes per mile by driver age all crashes per million miles travelled fatal crashes per 100 million miles travelled 37.3 Million, 12.4% of Population

4 Page 4 April 8, 2011 Cellar Conference 2011 Approach Improve Situation Awareness Ability to act upon the world improves as world awareness increases Situation Awareness (SA) has numerous dependencies User’s Mental Model of the World Current State of the World Situation Awareness Performance Perceive, Comprehend, Project

5 Page 5 April 8, 2011 Cellar Conference 2011 Framework for Issue Identification Wicken’s Information Processing Model Sensory Memory Perception Response Execution feedback Senses Attention Resources Decision Making Working Memory Long Term Memory Response Selection there’s a grand conspiracy of depreciations that robs the IP of the elderly, impacting their ability to attain and maintain situation awareness perceive, comprehend, respond

6 Page 6 April 8, 2011 Cellar Conference 2011 Depreciations, Impacts & Guidelines

7 Page 7 April 8, 2011 Cellar Conference 2011 Depreciations, Impacts & Guidelines

8 Page 8 April 8, 2011 Cellar Conference 2011 Display guidelines: Leverage avionics architectures & info management schema –Design for the copilot –Create an extended mind –Put knowledge in the world Provide an architecture that affords easy information access –Physical location based on criticality, frequency of use and matched to user viewing envelope –Employ functional grouping –Provide redundant communication –Eliminate distracting, low information content items Use size, color, luminance and location to communicate relative importance Limit color palette to 4 or 5 meaningful colors; consistent usage Design Philosophy & Additional Design Guidelines ‘quiet & uncluttered | intuitive & accommodating’

9 Page 9 April 8, 2011 Cellar Conference 2011 Controls guidelines: Design controls that exhibit metaphoric movements Avoid fine motor skill movements Interaction & industrial design guidelines: Leverage aesthetic-usability coupling Provide consistent interaction design throughout cockpit Design in monochrome first & use color for redundancy Design Philosophy & Additional Design Guidelines ‘quiet & uncluttered | intuitive & accommodating’

10 Page 10 April 8, 2011 Cellar Conference 2011 Proper selection of display technology –LCD with LED backlight (or OLED) –High maximum ERP luminance (1000 cd/m 2 ) –Low black state ERP luminance (2 cd/m 2 ) –Low diffuse reflectance in 6000 fC high ambient  enables abundant contrast low ambient ERP contrast > 500:1 high ambient ERP contrast >15:1 Include bezel mounted ambient irradiance sensors for automation dimming along with master dimmer for luminance customization Technology Selection Primary & Secondary Displays

11 Page 11 April 8, 2011 Cellar Conference 2011 Select wide color space with saturated green (555 nm) & red Balance luminance to favor V stimulation Communicate importance hierarchy via gray level luminance Technology Selection Primary & Secondary Displays

12 Page 12 April 8, 2011 Cellar Conference 2011 System Overview 3 Display Architecture

13 Page 13 April 8, 2011 Cellar Conference 2011 massively decluttered speed indicator at 100% grayscale for CR max & chromaticity chosen for max  E* font height and weight selected to assure visibility Media appropriate, familiar typeface to assure readability - Frutiger for harmony & minimal distraction, the ring –acts to center and ground speed indicator –GS luminance set 1% of indicator and –at same chromaticity aesthetically pleasing universal design Primary Display - Piloting

14 Page 14 April 8, 2011 Cellar Conference 2011 Primary Display - Piloting amber when turn indicator on redundant with side view mirror indicator red when car deviates toward collision couples with audible & haptic alerts low fuel: amber extremely low fuel: red PRND replaces speed at 0 mph large directional indicators luminance increase after 60 s safety & walk-home telltalesdirectional indicators blind spot hazard indicatorcollision warning indicator

15 Page 15 April 8, 2011 Cellar Conference 2011 Functional grouping of information with defined areas Simple fuel gauge with range & odometer displays persistently Gauge labels, range & odo mile labels appear and remain on screen until user shifts into drive Head Down Driver Navigation & Information Display

16 Page 16 April 8, 2011 Cellar Conference 2011 Navigation system based on MOVE (Hudson & Forlizzi, CMU) Based on UCD techniques, focusing on features of hand drawn maps Uses abstraction techniques that reduce clutter and match user’s mental model of navigation process –Semantic information rich labeling at major maneuvers –Less salient symbolic labeling prior to next maneuver –Displays only salient navigation landmarks – traffic lights, bridges Head Down Driver Navigation & Information Display # glances  by 3X glance dwell time  by 6X lane keeping  by 5X Simulator Testing MOVE vs Linedrive

17 Page 17 April 8, 2011 Cellar Conference 2011 Future Work Continued refinement and development of design guidelines Building a non-drivable aesthetic property for qualitative user assessment of basic design Build design into reconfigurable cockpit to enable quantitative user performance testing and iterative design refinement Enrich design by evaluating persuasive prompts Evaluate and address deskilling that may appear if interface is unchallenging


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