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Cruise Control Complement

Cruise Control Complement. Team: B-Braker Alan C. Hedding Nate S. Drury. Background. 226 million vehicles registered in the USA. About 40% have cruise control. Invented in 1945, basic idea is still the same. Currently, only throttle is controlled. Problems with Cruise Control.

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Cruise Control Complement

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  1. Cruise Control Complement Team: B-Braker Alan C. Hedding Nate S. Drury

  2. Background • 226 million vehicles registered in the USA. • About 40% have cruise control. • Invented in 1945, basic idea is still the same. • Currently, only throttle is controlled.

  3. Problems with Cruise Control • Steep downhill slopes • Other traffic • “Highway Hypnosis” • Drivers falling asleep

  4. Complement to Cruise Control Want prototype to: • Sense objects in front of vehicle and apply brakes. • Apply brakes when vehicle exceeds requested speed. • Sound alarm and gently apply brakes if driver removes hands from wheel. • Control braking intervals according to road grade to prevent sliding on downhill slopes.

  5. Major Objectives Build a braking system that: • will enhance the safety of vehicles. • is adaptable to all vehicles. • uses currently marketed technology. • is economical. and • Develop a scaled-down and simplified prototype to demonstrate functionality.

  6. Design Top Level 3 2 1 4

  7. Cherry Electrical MP1013 Low price - $5.04 /unit Bullet shape easier to use Honeywell SR 16/17 Series Low price - $6.00 /unit Vane design requires < 3mm ferrous disk Speed Sensor

  8. Maxbotix MaxSonar-EZ1 Detects objects at distances up to 6.45 m to within 1 inch. RS232 output Inexpensive - $24.95 Sonar Distance Sensor

  9. Spectron Spectrotilt 4-20mA Electronic Inclinometer Analog output up to 20mA ±60° Rieker H4 Series Inclinometer 8 bit RS232 output ±30°, ±45°, ±60° models Tilt Sensor

  10. Maxim MAX5402 $0.95 /unit 3-wire interface Maxim DS1805 $1.10 /unit 2-wire interface Digital Potentiometer

  11. Cost Analysis • Mechanical Requirements: Brake $400.00 *donated Brake Controller $400.00 *donated 24 Volt power supply $45.00 Chassis $90.00 • Electrical Requirements: Sonar sensor $25.00 Speed sensor $6.00 Capacitance sensor $ ------- Tilt sensor $ ------- Microprocessor $4.00 *donated

  12. Project Plan

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