xr3 hybrid
DESCRIPTION
PowerPoint presentation on the 125 - 200+mpg XR3 Hybrid three-wheel vehicle. Presentation delivered on September 18, 2008 at meeting of Arizona-Nevada Section of SAE. More info at: http://www.rqriley.com/xr3.htmTRANSCRIPT
XR3 HYBRID
XR3 SUPER-MILEAGE XR3 SUPER-MILEAGE THREE-WHEEL HYBRIDTHREE-WHEEL HYBRID
• Plug-In HybridPlug-In Hybrid
• 40 mi Battery40 mi Battery Range Range
• 125 MPG on125 MPG on Diesel Power Diesel Power
• 75 – 80 MPH75 – 80 MPH
• Two PassengerTwo Passenger
XR3 HYBRID
PREDESSORSPREDESSORS
UrbaCar 1974
Urba Electric 1977 Trimuter 1980
Tri-Magnum 1983
A Few
650 lb Curb Weight60 mpg 60 mph
Constant-Speed Motor Speed Controlled by CVT
850 lb Curb Weight55 mpg 65 mph
Motorcycle Power Train 1250 lb Curb Weight45-50 mpg100+ mph
XR3 HYBRID
EARLY CONCEPT EARLY CONCEPT RENDERINGSRENDERINGS
• High-Performance Orientation
• Tilting Suspension
• Single-Occupant
• Motorcycle Power Train
• Fair-Weather Sports Car
A blend of motorcycle and automotive styling cues create a conceptually different product
XR3 HYBRID
XR3 HYBRIDXR3 HYBRID
XR3 HYBRID
CHASSIS LAYOUTCHASSIS LAYOUT
Electric Drive & Suspension Tunnel Frame
ICE Drive & Suspension
Clutch
Motor
Two-Stage Timing Belt Drive
Kubota 23 hp Diesel Engine
Four Li-Ion Batteries in Front & Two in Tunnel
Air Spring at Each Wheel
Urethane Mount 4 PlacesFront & Rear of Tunnel
• Parallel Hybrid Architecture
• Electric & ICE Power Systems Decoupled Within the Vehicle
Designed to Maximize Power Train OptionsDesigned to Maximize Power Train Options
XR3 HYBRIDICE DRIVE & FRONT ICE DRIVE & FRONT SUSPENSIONSUSPENSION
EASM File
Mounting Hard-Points
(4 places)
Kubota D902 Diesel Engine
Stabilizer Bar alsoServes as Locator LinkFor Lower Control Arms
Air SpringInflation Pressure ControlsRide Height & Accounts forVehicles Having Weight
Suspension Air Reservoir
Shifter(Mounts to Tunnel Inside Cabin)
Throttle/Mode Integrator
XR3 HYBRID
FRONT CLIP REMOVEDFRONT CLIP REMOVED
XR3 HYBRID
TUNNEL FRAMETUNNEL FRAME
3 Gallon Fuel Tank
Li-Ion Battery (2)
Bolt to Front Sub-Frame Using Urethane Vibration Isolator (4 places)
Sheet Metal Skin
Route Fuel Filler Through Here
Rectangular Steel Frame
EASM File
XR3 HYBRIDELECTRIC DRIVE & ELECTRIC DRIVE & SUSPENSIONSUSPENSION
Trailing Arm Pivots on Jackshaft Axis
Air Spring Varying Air Pressure Accounts for Weight of Different Power System Configurations
Trailing ArmInternally Trussed
Urethane Vibration Isolator 4 Places
Motor Frame isa Structural Element of Rear Housing
EASM File
XR3 HYBRIDELECTRIC DRIVEELECTRIC DRIVE
Tight packaging allows the motor to serve as a structural element.
INTEGRATOR/MODE CONTROL
EASM File
XR3 HYBRIDFOAM CORE COMPOSITE BODYFOAM CORE COMPOSITE BODY
STEP 1: Build Foam Body
STEP 2: Fiberglass Over to Create a Foam Core Composite
STEP 3: Smooth & Level With Body Filler
XR3 HYBRIDXR3 HYBRIDXR3 HYBRID125 – 225 MPG 125 – 225 MPG
40 MI BATTERY-ONLY RANGE40 MI BATTERY-ONLY RANGE