M 915 - Palletized Loading System Demonstrator 11 June 2003 Mr. Jeffrey Kozierowski National Automotive Center Tank-Automotive Research, Development & Engineering Center Committed to Excellence
Outline • The 915 Family of Vehicles • New Technologies • Permo-Drive RDS • Questions
The 915 FOV • Why this vehicle? • 6 mpg Cruising • 917 Dump Truck • Stop and Go Drive Cycle
New Technologies • • • Electronic Braking System (EBS) Air Dryer LED Headlights/Taillights Steerable Rear Axles Exhaust Vibration Balancer
EBS • • Uses electronics to control braking system Reduces number of components Detects brake wear Shortens stopping distance
Air Dryer • Protects braking system from moisture and contamination • Weighs 11 pounds • Water absorption • High reliability
LED • • • Low heat, High efficiency Vibration sensitivity Multi-Color capability Covert communication Used on ST II
All Steer • Improves maneuverability • Automated, user operated • Improves turning radius by 30%
Exhaust Vibration Balancer • • Balances vibration, torque and road shock Reduces fuel consumption Reduces failure Increases durability
Operation
Key Components Axial Piston/Pump Regenerative Drive System Accumulator(s) Oil Reservoir Piping/Plumbing Electronics and Wiring
FMTV Deceleration Comparison: RDS vs Exhaust Brakes at GVM (33, 686 lbs) Speed 35 (MPH) Engine Resistance Exhaust Brake RDS 30 25 20 15 10 5 0 200 400 600 800 Distance 1000 (Feet) 1200
FMTV: Dash Comparison at GVM (33, 686 lbs) Speed 40 (MPH) 35 30 25 20 15 Engine Only RDS 10 5 10 15 Time 20 (Seconds) 25
Class VI Regenerative Drive System Continuous Drive Shaft Inline Design Operating Pressure 5000 psi Digitally Controlled Retrofitable
Why Hydraulic? High Power Density High Energy Flow – Not Temperature or Chemically Limited Efficient Charging & Discharging Reliable Performance Over a Wide Range of Operating & Climatic Conditions Minimal Routine Maintenance
Why Hydraulic? Readily Available Spare Parts Hoses Oil Filters Fittings Robust Components Mature Technology Excellent ROI Retrofitable
Braking Through the Barriers Introducing Regenerative Drive System Class VI
Braking Through the Barriers Class VI Regenerative Drive System PERFORMANCE SPECIFICATIONS: Target Weight: 330 lbs Power: 340 Hp Torque: Size (L x W x H): 995 lb/ft 18” x 9½” x 12” Prototype Availability: 4 th Qtr 2003 Production Availability: 2 nd Qtr 2005
Braking Through the Barriers Summary Simple Design & Installation Robust Performance Available Technology Substantial ROI Better Fuel Economy Reduced Maintenance Retrofitable Lower Emissions
Braking Through the Barriers Special Thanks to: National Automotive Center