09/26/03
NovaKinetics
All Members Present
3:30pm: Meeting Started
MINUTES:
Project Requirements:
- Travel Expectations
- Commuting 5-6 miles to and from work each day [avg. 15 mile/day]
- Needs to be able to go more than 20mph uphill
- i.e. should travel speed limit up Cedar; don’t want to be embarrassed
- Not for weekend use
- Needs a charger for overcast days
- Battery capacity for several days use
- Intended as a city car/ maximum steady-state cruise around 40mph but can withstand up to 70mph
- Designed for Flagstaff climate/driving conditions (then work towards Phoenix/Tucson)
- Performance parameters: keep up with traffic, typical specs for a mid-size economy car
- No off-roading; speed-bump at worst
- Fun demonstration vehicle
- Size Limitations
- Minimize weight
- Single-seater
- Ease the load
- Cargo space has the utility of a motorcycle with a little room for storage; very minimal
- “Re-inventing the horse”
- Optimum aerodynamic requirement is 3 or 4 to 1
- Comparable to a modern sports car
- Won’t take up more than one parking space (5ft x 10ft)
- No target weight limit; batteries will drive this
- Power / Renewable Energy Requirements
- Enough power to be able to deal w/ traffic
- Hybrid
- Should be self-sustaining
- No back-up gas motor
- Converting energy to hydrogen for use; study for use on efficiency
- Can use fuel cells and may convert chemical energy
- 40-50 sq. ft. of PV cells should enable you to gather enough power
- PV cells integrated into body; you can’t orient them perpendicular to the sun; the best is when you attract the sun
- Ideally universal for any parking, geometry would be best if you park North/South
- 20-30 degrees off and you would still get pretty good pick-up; needs more research
- Batteries for a storage device / high-powered capacitors
- Short-burst acceleration, etc.
- Limit to current burst out of a battery
- Balance might be best
- Regenerative braking doesn’t buy that much in efficiency
- Capacitors to store energy from regenerative braking
- Safety Features / Accessories / Ergonomics
- Three wheels makes it legally a motorcycle
- Heating
- Stereo
- Maintenance / Manufacturing
- This is a proof-of-concept, so blow off maintenance issues
- Can use off-the-shelf parts
- Differentials off of ATV’s, etc.
- High efficiency tires, suspension, etc.
- Materials
- Metal is better for the primary structure (aluminum riveted platform, tubing)
- Light-weight composite shell
- Low-rolling resistance tires
- Front/rear wheel drive open (fat in front/tapered in back)
- NovaKinetics requirements
- Pretty respectable design that could withstand critical review
- You have design freedom
- Could be funding for a proof-of-concept model ($1000-2000)
- Meet with Jim every 2-3 weeks to let him know what’s going on
- No cost limitations; no competitive price point
- No written progress reports; just discuss at meetings
- Just show this can be done!
- Miscellaneous
- Jeep has an example to view
- Corbin motors website (build a variety of small electric vehicles)
- “Sparrow” example model
5:00pm: Meeting Adjourned