Fast Feedback: Corvette Performance Data Recorder
Industry-first system features integrated video, audio and motorsport-inspired
telemetry recording capability
HD-quality videos can be reviewed in-car when parked, or downloaded to
personal computer for sharing via social media
Data can be uploaded to Cosworth Toolbox telemetry software, similar
to that used by Corvette Racing, to improve driver’s techniques and
LAS VEGAS – Chevrolet
announced at the Consumer Electronics Show today an industry-first
Performance Data Recorder for the 2015 Corvette Stingray. The fully
integrated system enables users to record high-definition video, with
telemetry overlays, of their driving experiences on and off the track.
“The Performance Data Recorder combines the ability to record and share
drive videos with the power of a professional-level motorsports telemetry
system,” said Tadge Juechter, Corvette chief engineer. “Drivers can easily
record and share their experiences driving down the Tail of the Dragon or
lapping Road Atlanta. In addition, with the included telemetry software,
users can analyze their laps in incredible detail and find opportunities
to improve their driving and lap times.”
The Performance Data Recorder, or PDR, system was developed with Cosworth,
the British motorsports-engineering company that supplies the Corvette
Racing team’s data acquisition and telemetry electronics system. It will
be available with the start of regular 2015 Corvette production, later in
the third quarter of 2014. Pricing will be announced closer to launch.
The PDR system includes three major components, all seamlessly integrated
into the Corvette Stingray’s interior. First is a 720p, high-definition
camera, mounted within the windshield header trim, which records the
driver’s point-of-view through the windshield. Audio is recorded via a
dedicated microphone in the cabin.
Second is a self-contained telemetry recorder. The system uses a dedicated
GPS receiver that operates at 5 hertz, or cycles per second. That is five
times faster than the in-dash navigation system and allows more precise
positioning and corner traces. The recorder is also hard-wired into the
Stingray’s Controller Area Network, or CAN, to access vehicle information,
ranging from engine speed and transmission-gear selection to braking force
and steering-wheel angle.
Finally, the system features a dedicated SD-card slot in the glove box for
recording and transferring video and vehicle data. Recording time depends
on the capacity of the memory card, but an 8-gigabyte card can record
approximately 200 minutes, while a 32-GB card stores up to about 800
minutes – more than 13 hours of driving time.
The PDR system can record video with three data overlay options, each
rendered in real time:
Track Mode – shows the
maximum level of data on the screen, including speed, rpm, g-force, a
location-based map, lap time and more.
Sport Mode – shows
fewer details on the overlay but includes key data including speed and
Touring Mode – simply
records and displays video and audio of the drive with no data overlay
Performance Mode –
records performance metrics, such as 0 to 60 mph acceleration, 1/4-mile
speed and elapsed time, and 0-100-0 mph runs.
The video can be viewed on the Corvette Stingray’s eight-inch color
touchscreen when the car is parked, or downloaded to a computer for
further editing, and sharing video via social media sites.
For users who want a more in-depth understanding of their performance, the
PDR vehicle data can be opened in the included “Cosworth Toolbox”
software, which combines Cosworth’s professional-level motorsport data
analysis with an easy-to-use graphic interface.
The Cosworth Toolbox application overlays recorded laps on a Bing-enabled
satellite map of the track, and compares selected laps in detail for any
requested point on the drive. Comparisons include corner traces, vehicle
speed, and cornering force to help drivers improve their driving
consistency and ultimately their lap times.
“The ability to review laps between track sessions can identify immediate
adjustments for quicker laps in the next session,” said Juechter. “It’s
like having a 32-GB crew chief trackside providing you with real-time
feedback to improve your driving skills.”