Vehicle Dynamics and Information System

 


The Vehicle Dynamics and Information System [VDIS] is meant to aide the driver who needs access to information that could be vital to specific applications, such as racing, rock climbing, turning, over steer, under steer, skid pad dynamics, position, and time.  This device provides the following information:

  • Time
  • Greenwich Mean Time
  • Position
  • Altitude
  • Speed
  • Forward Acceleration
  • Braking De-Acceleration
  • Lateral Acceleration (with Skid pad Threshold warning)
  • Lateral Tilt Angle (with Threshold Warning)
  • Forward Rear Tilt Angle

 

The VDIS will relay this information visually and audibly.  The VDIS should theoretically create a safer driving experience and even a more effective experience in cornering and in the various applications that could utilize these features.  It provides feedback to your driving experience.

 

There is a vast target audience for the VDIS.  There are even more applications for this device which have not been foreseen.  Some of the potential customers could be:

  • Casual Drivers who want a safer but vibrant drive.
  • Sports drivers
  • Competitive truck rock crawlers.
  • Information Enthusiast
  • People who want the exact time.  Greenwich Mean Time.
  • High Profile vehicles.

The target audience will be a driver who needs to know real time data pertaining to their vehicles.  This device is a standalone system.  It utilizes 3 inputs of analog accelerometer data to display the vehicles position in a three dimensional coordinate system.  It monitors the vehicles dynamics as it is operated in a vigorous manner.

Specifications

Main Unit
Size................................................... 10.551" 8.504" 3.504"

Weight.............................................. 2 lbs.

Power Options................................. 8AA or 12V Auto Lighter Plug

Battery Life...................................... 3 hours @ 500mA, 8 hours @ 250mA

Clock Speed..................................... 48 Mhz

Instructions...................................... 12 MIPS

Warning Tone................................... 3000 hz

GPS

Channels..........................................32 Channels

Connection......................................38400 Baud

Update Rate.....................................5 Hz

Accuracy..........................................3 Meters

Features............................................WAAS Enabled

Cold Start.........................................5 Minutes

Hot Start...........................................6 Seconds

NMEA Sentences.............................GPGGA,GPVTG

Accelerometers

X......................................................+/- 3g

Y......................................................+/- 3g

Z......................................................+/- 3g

X Precision.....................................98%

Y Precision.....................................98%

Z Precision.....................................85%   (Pre-Calibration)

 

Final Design of PCB to be made:

Done and Open:


Parts:

# Distributor Supplier Part Number Part Name Quantity
1 Advanced Circuits Daniel Johnson VDIS 1.0 PCB 1
2 Teko Enclosures Teko Enclosures 767.9 Enclosure 1
3
Teko Enclosures DA635.0 Standoffs 5
4 Sparkfun

2.048KHz Buzzer 1
5 Dimension Engineering Dimension Engineering
5v Switching Regulator 1
6 Newark

LM317 Regulator 1
7


TO-220 Heatsink 1
8 Sparkfun

4 AA Battery Holder 2
9


Blue Power Switch 1
10


Terminal Block 1
11 Newark

3v battery holder 1
12 Orvac Energizer
3v battery 1
13 Wright Hobbies Sure Electronics
20x4 LCD 1
14 Sparkfun Sparkfun
Logic Level Shifter 1
15 Sparkfun Sparkfun
Button Pad PCB 1
16 Sparkfun Sparkfun
Button Pad 1
17 Sparkfun Sparkfun
Button Pad Plate 1
18 Newark

47 uF Electrolytic Capacitor 1
19 Newark

1 uF Electrolytic Capacitor 2
20 Newark

0.1 uF Electrolytic Capacitor 2
21 Newark

0.01 uF Ceramic Capacitor 2
22 CSUF IEEE

4 10K Resistor Network 3
23 Costco Energizer
AA Battery 8
24 Dimension Engineering Dimension Engineering DE-ACCM3D 3-Axis Accelerometer 1
25 Newark Microchip PIC18F4550i/P Microcontroller 1
26 Newark Abracon
20 MHz Ceramic Resonator 1
27 Sparkfun

Etek EB-85A GPS Module 1
28 Sparkfun

Surface Mount EB-85A Connector 1
29 CSUF IEEE

5K ohm Trimmer Pot 1
30 CSUF IEEE

300 ohm Resistor 2
31 CSUF IEEE

10K ohm Resistor 1
32 CSUF IEEE

4.7K ohm Resistor 1
33 CSUF IEEE

51 ohm Resistor 1
34 CSUF IEEE

390 ohm Resistor 1
35 CSUF IEEE

240 ohm Resistor 1
36 CSUF IEEE

82.5 ohm Resistor 5
37 Sparkfun

40 DIP Socket 2
38 Newark

Red 5mm LED 2
39 Newark

Blue 3mm LED 5
40


Velcro 1

In development of the hardware:

Circuit Schematic << Link

PDF of Power Point Presentation << Link

Source Code << Link

This project no longer runs on batteries, and is fed directly from a 12v-12v Auto Accessory plug.

 

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Comments

  • Documentation and descriptions were fantastic... and then I come upon the mess that is eagle auto-routing. My eyes are bleeding!

    Haha just playing. Nice work daniel.

    Posted by Daniel S, 24/06/2009 10:16pm (8 years ago)

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