Schultz Engineering - Delta-X2 Concept Ideas

Chapter 2: DELTA-X2 - Designer Sketchbook -
Benchmarking and Brainstorming Ideas
for Building the SuperCub of the 21st Century

(Back to Home)

(Previous Page)

(Next Page)

(Project Overview)

(Printable Version)

Schultz Engineering, LLC 2014 Concept Vehicle

Where We've Been

DeltaBike Prototypes: Feb. 2007-April 2012
(See our project webpage to review 5 years of self-funded projects www.SchultzEngineering.us/projects.htm)

With our prototypes we are searching for the perfect mix of power, agility, lightness, fun, value, and reliability that will make people love our product. We are not there yet, but with concepts like the 2011 Delta-11 we are getting closer.

Where We Are Going: DELTA-X2^tm

DeltaBike Brand: A unique electric vehicle that is NOT A MOTORCYCLE. It's a DELTABIKE.

Market Goal: The "SuperCub" of the 21st Century

Product Description: Our next concept bike is code named the "Delta-X2" because it's specifications are mathematically 1/2 of the Delta-11 concept bike. 1/2 the weight, aero drag, rolling resistance, batteries, cost, price... In a remarkable way this gives us 2x the performance in range, fun, power to weight. This will make the bike something motorcyclists and non-motorcyclists will like to ride. The other day, my wife and I stopped at the motorcycle store and she walked up to a cute, little, red, moped and said "I'd ride that." That's exactly the response we want to get from people who would never consider riding a "normal" motorcycle.

Think of it as a high performance moped that will cruise at 55mph. It is a friendly, non-threatening vehicle that people of all ages enjoy riding.

DELTA-X2 ^tm Design Goals for 2014 Fire Hawk Concept Bike

275 lbs
100 mile range at 50 mph
Price $6,000
0-60mph in 7 seconds
Top speed 70mph
Fuel Cost per mile = 1 penny
Low seat height so all sizes of riders can touch ground
Modular Body work – customer can choose from many different styles
Very Cool looking with and without body work
Storage capacity to make it practical for commuting, errand running

Since we are developing an honest product, will sell it with the honesty reminiscent of Honda and VW bug advertising campaigns of 1950's and early 1960's. "You meet the nicest people on a DeltaBike"

The DeltaBikes will be marketed and sold by DeltaBike USA. For information about purchasing a production DeltaBike, visit www.DeltaBike.US.

DELTA-X2^tm - Design Priorities

For a Another Listing of Design Prioritities weighted for a Design Competition see: http://www.deltabike.us/design2012.htm

1. Cool looking: Style

Schultz Engineering Concept Work

Kaneda's Bike (from Akira) on the Road in Japan

Sbarro Concept

Art Work from 2009 Int. Auto Show in California

Hyundai-Aebulle Concept

2. Agile: Ground Clearance for 45 Degree tilt at full compression of front and rear suspension

3. Light Weight: Use Small, High C Rated Batteries (i.e. Zero 3Kw packs, or A123 Pouch Cells)

For a review of using a Zero bike as a donor for this project see October 12, 2012 entry on this webpage delta-11-8.htm.

4. Low Price: Use Low cost PM brushed motor and controller (i.e. Perm-132 or Mars RT ME-0709)

Martin Cutlan's wonderful design for a rear swing arm with belt drive (http://www.evalbum.com/4157).

Martin's bike Mars ME0913 3-Phase AC with a 28mm x 125T Toothed belt with a ratio of 21/80 3.8 TO 1. The rear pulley uses the outer rim of a buell blast, and the front was machined out of solid.

Joseph Rajakaruna Lengthened a Moto-X Bike Swing Arm to make room for a motor mounting this way:

Picture source: www.jrajakaruna.com

The Zero Motorcycle mounts it's motor axis on the rear swing arm axis.

The 2012 Zero S has a toothed drive belt 132T/28T "Poly Chain GT Carbon" Belt (looks to be less than an inch wide)

Use mountain bike and pit bike components like MotoPeds

Picture source: www.motopeds.com

Picture source: www.motopeds.com

5. Dramatically More Efficient: Reduced size and frontal area

Royce Creasey's TTXGP Racer Concept

6. Comfortable: Two Position Seating

Schultz Engineering Concept

Here's a cool sketch by Anej Kostrevc from Slovenia

TMAX version of the Royce Creasey's FFT Bikes

7. Revolutionary: Three Position Seating Possible?

A Kraig Schultz Innovation

The linear actuator is an expensive, heavy and slow way to power the tilting seat. A lazy boy recliner demonstrates it can be done with mechanisms.

A gravity inversion chair like the one made by Stamina that I saw at Durham Sports shows how simple it can be. It also demostrates where a persons center of gravity is. For those with HIGH speed internet a quicktime video (5MB file) shows it action.