Project Overview APU for Hybrid HMMWV Operation Charge
Background ONR Requested a test bed for lead-acid batteries. Returned to working condition with current systems Designed and manufactured a thermally regulated battery pack.
Project Goals 1.Engine/alternator package capable of charging battery pack for extended range use. 2.Procedure for repeatable over-the-road performance testing model. 3.Provide economy and power mode for engine/alternator operation. 4.Enhance vehicle safety. 5.User-friendly researcher interface.
1. Engine/Alternator Package Starting Circuit Grounding Oil Leakage
1. Engine/Alternator Package Control System - Control APU and Diesel - Regulate Battery voltage - “power” and “econ” mode - Warning displays, LEDs
RCM3000 RabbitCore Rabbit 3000, 29.4 MHz 10Base-T Ethernet Port, RJ K Flash, 512K SRAM 44 configurable I/O, 4 fixed inputs, 4 fixed outputs Vdc: Volts -40C to +70C, 5-95% RH Language: Dynamic C Single Unit - $79.00, w/ Development Kit - $ Has to be mounted on a user defined mother board Rabbit 3000, 44.2 MHz 10 Base-T 512K Flash and SRAM 16 digital inputs, 4 digital outputs, 8 analog inputs, 4 analog outputs -40 to +70C, 5-95% RH Programmed using Dynamic C Back up Battery $ MHz microcontroller 128K Bytes of ISP Flash and CAN Controller 4096 Bytes of SRAM 53 I/O pins Vcc: Volts -40 to + 85C, 5-95% RH AT90CAN128 AutomotiveBL2600 Wolf Contrast and Comparison
2. Road Load Testing – Power Requirements
2. Road-Load Testing – Campus Loop Driving Circuit (Route A and B) Max mi/hr Driving Circuit C, Max 45 mi/hr, 0.8 miles
2. Road-Load Velocity Profile
2. Road-Load Power Prediction
3. Multi-mode Operation – Efficiency Map
3. Multi-mode Operation - Power Map
3. Multi-mode Operation - Control Logic
4. Vehicle Safety Fire Extinguisher Licensing Maintenance/Operation Procedures
4. Vehicle Safety Driver-Centered Gauge Cluster − Reduce Operator Training Time − Driver Awareness Proposed Gauges: − Voltage, Amp-Hrs − Engine Status
4. Vehicle Safety Wiring to code.
5. Researcher Interface Provides a more dependable display for vehicle. Increases amount of information that can be presented. Able to withstand abuse encountered in Armed Forces.
National Instruments 15” Touch Screen 1024x768 Resolution 250 cd/m2 Brightness 500:1 Contrast Ratio 32 – 122 Degree Operating Range 17 – 500 Hz Operating Vibration (1g Peak) 5 – 95 % Humidity Range (Non Condensing) 42 W Power Consumption 40,000 Hour Backlight Life Monitor Price – $ Desk Mount Price – $65.00 Lead Time Estimate – 5-10 Days
Rockwell Automation 15” Light Industrial Touch Screen 1024x768 Resolution 350 cd/m2 Brightness 400:1 Contrast Ratio 32 – 104 Degree Operating Range 10 – 640 Hz Operating Vibration (1g Peak) 10 – 90 % Humidity Range (Non-Condensing) 24 W Power Consumption 50,000 Hour Backlight Life Monitor Price – $ Desk Mount Price – ** Lead Time Estimate – < 7 Days
Future Work Order parts (Nov 10 th ) − Microcontroller − Gauges − Monitor Verify alternator integrity (Dec 8 th ) Implement control system (Dec 8 th ) Upgrade wiring (Feb 1 st ) Over-the-road testing (Feb 15 th )
Questions??