Tulsa Paradyne

Background

The Tulsa Paradyne was initially conceived as a test mule in which a new parallel powertrain could be developed, tested and then installed in the Proxima HEV. These plans changed, however, as the ambitions of Hurricane Motor Works broadened.

The Paradyne, since its initial conversion in 1996, has matured into a fully functioning hybrid electric vehicle. The heart of this HEV is its overrunning (or one-way) clutch. After numerous failures with a roller overrunning clutch, the Works pursued Dana Inc. for the use of their sprag overrunning clutches. This type of clutch now operates successfully in the vehicle. A fully automated control system enables the driver to operate the Paradyne as they would any other automobile. For 2002, the Paradyne's engine has been converted from gasoline to E85 ethanol.

The Paradyne was originally white No. 7, but was repainted blue to match TU's colors. It kept No. 7 until the 2001 Tour de Sol, when it became No. 17.

Tulsa Paradyne Specifications

Engine and Motor

Engine	1 liter 3-cylinder SOHC, liquid-cooled
Motor	Solectria ACTGX20 AC induction
Engine peak horsepower (gasoline)	45 hp	33.5 kW
Motor peak horsepower	25.9 hp	19.3 kW
Peak combined torque (gasoline)	92 ft-lb	125 Nm
Battery pack	12 x Concorde PVX 1248 VRLA	144 V

Drivetrain

Transmission	Three speed automatic
Maximum transmission speed	6000 rpm
Hybrid technology	Parallel hybrid with overrunning clutch

Body and Chassis

Layout	Front engine, front wheel drive
Body	Steel uni-body
Brakes	Regenerative, hydraulic disc and drum
Wheels	14x6 inch, neutral offset
Tires	175/65R14
Steering	Rack and pinion
Front suspension	Compressed struts, sway bar
Rear suspension	Custom springs, sway bar

General data

Curb weight	2400 lbs	1090 kg
Wheel base	89.2 in	2.27 m
Length	147.4 in	3.74 m
Height	52.4 in	1.33 m