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SunVee stands for Solar Utility Neighborhood Vehicle. This is a concept for a solar neighborhood electric vehicle. Solar: Solar-electric panels are integrated with the body to charge batteries which power an electric motor. Utility: This is a practical vehicle for trips with passengers and cargo as well. Neighborhood: The range is about 30 miles and the top speed is about 25 miles/hour, making this vehicle useful for within your neighborhood. Vehicle: This is a vehicle for transforming our consciousness about how we use energy. |
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History
The Sunmobile is based on a commercial four-wheeled, two person, pedalling "bike", called a Rhoades Car. On this platform, Kelly designed and built a solar electric powered vehicle that retains one of the original human powered pedals. The Sunmobile is charged exclusively with the photovoltaic panels mounted as a roof canopy/sun shade. It will travel at up to 30 mph, and has a range of up to 30 miles on a fully charged battery.
At first, the one horse power, 24 volt, permanent magnet electric motor was connected to the bicycle chain derailing system from the passenger side, so that a combination of 36 speeds, or gears, were available for various inclines of travel. This arrangement worked OK, but the bicycle technology was ultimately a bit fragile for the torque demands placed on it by the motor, and it needed frequent repair.
Now the same motor is coupled, with a centriugal clutch, to a riding lawnmower transaxel, with six forward speeds and reverse. The tranaxle powers one of the rear wheels, while the other wheel is powered by the pedals. This arrangement allows the driver to add motive power when desired, either to assist going up hill, to add traction in soft dirt, or to provide physical exercise.
There is a twist grip on the handlebars which is used as an accelerator. It feeds information to a motor controller mounted under the chassis, which in turn provides the motor with electicity. An easily visible digital meter shows the voltage, the amps being consumed (or charging the batteries) and accumulated amp/hours. The amp/hour reading is comparable to a gas gauge, showing how much "juice" has been consumed. There is a charge controller that automatically determines when and how much to charge the batteries from the solar panels mounted as a canopy. The Sunmobile has never been plugged into grid power to charge the batteries, although it certainly could be if desired. All that needs to done to keep it charged is to park it in the sun...anywhere. Hundreds of miles have been driven with absolutely no fossil fuel or pollution created.
There are two rear brakes: on the pedalling side is a drum brake, and on the motor side is a disc brake that is part of the transaxel. Both of these are actuated by bicycle style hand levers. Another method of braking is to allow the motor to act as a regenerative brake, which charges the batteries at the same time. A digital bicycle speedometer/odometer monitors these functions. An automotive horn is very audible. Headlights are mounted for evening or night time use. The seats are padded boat seats. A rear view mirror is attached to the driver's side. The passenger side has a safety bar to grip while moving; it hinges down and out of the way when entering the vehicle. All of the framework that supports the photovoltaic canopy is made of aluminum. The original chassis framework is 2-inch square channel welded steel. The Sunmobile has never been weighed, but it probably is over 400 lbs. with a set of four deep-cycle marine batteries. The original Rhoades Car was rated to carry about 800 lbs.
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The concept for the SunVee is similar to the Sunmobile in many respects, but divergent in others. Most of the deficiencies of the Sunmobile would be improved in this evolution.
Enclosure: The SunVee would have the option of being completely enclosed for weather protection and security. The chassis and body would be made almost exclusively of molded and colored recycled plastic. Flexible amorphous photovoltaic panels would be permanently fixed to portions of the body. The doors would be removable for fair weather use. The body would be a bit wider than the Sunmobile, with a seat that might accomodate three people. Cargo space behind the seat would be accessable from either the front or from a rear hatch. Speed and Power: The one hp motor of the Sunmobile would be increased to three hp for the SunVee. This would greatly enhance the acceleration and speed potential, so that it will be able to keep up with traffic on any road posted at 25 mph. The Sunmobile must be geared way down and travels very slowly up hills.
Transmission: An upgrade to a hydraulic transaxle should allow smoother acceleration without shifting gears, no need for a clutch, and quieter operation. The Sunmobile requires frequent shifting and the centrigugal clutch is fairly noisy. Because the SunVee will be noticeably heavier than the Sunmobile, the human-powered pedalling option will be eliminated. Suspension: The SunVee will have a true suspension, for a more comfortable ride, better cornering and less abuse to the chassis and body. The Sunmobile has no suspension. Tires: The SunVee will have wider, more substantial tires that are designed for greater weight and durability. The tires on the sunmobile are barely adequate, industrial bike tires.
Photovoltaics: The charging capacity will be doubled, with four instead of two 75 watt solar panels. This should compensate for the increase in energy use of the larger motor. Steering: The SunVee will have wheel or butterfly steering, as opposed to the handle bars of the Sunmobile. Brakes: An upgrade to disc brakes on all four wheels will enable secure and responsive braking. There will also be a parking brake. Other safety features: The Sunvee will comply with all Federal and state requirements for Low Speed Vehicles. This includes windshield wiping and washing systems, front and rear turn signals, tail and stop lights, three rearview mirrors and seat belts. |
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Here are some small solar electric vehicles that might be considered similar to the Sun Vee. Direct links to the manufacturers are provided for further investigation. Cruise Car of Sarasota, Florida is now selling, through a variety of dealerships across the U.S., several models of solar electric vehicles. These are all low-speed, street-legal vehicles, suitable for neighborhood or golf course use. Visit www.cruisecarinc.com for more information.
They also sell independent Solar Roof Kit conversions to turn any golf cart into a solar vehicle.
The vehicle will seats two people, has a 25 mph top speed with a range of 20 miles. It is water proof, has a 2-speed transmission, lights, horn, brakes, and weighs 350 pounds. It is street legal. The small panel on the hood gives you about 3 miles per day travel on a sunny day. Larger panels on the roof could bring that up to 12 to 16 miles per day. The kits include: Chassis (welded square tubing); front suspension with two shocks; rack and pinion steering with steering wheel; rear suspension with two shocks; four wheels (26" diameter Kevlar belt tires); drive system (48V DC motor and control with regenitive braking and reverse); inner frame, welded; door assembly with latch and handle; body parts (floor, pans and outside panels made of fiberglass reinforced plastic); floor, seats and dash board; hydraulic disc brakes on all four wheels; speed control with pedal, PWM control, relays and all cables; headlights, taillights, turn signals, switches and wiring harnesses; solar charge controller with ammeter; Built in 110 Volt charger; safety glass windshield and polycarbonate side and rear windows; windshield wiper, seat belts, rearview mirrors, horn and parking brake; detailed assembly manual; wiring diagrams; Certificates of Origin for all major components. The solar panel(s) and batteries are not included. The cost of the kit is $4,500.
Electric System Motor Drive Components: Solar panels (2 Kyocera 80 watt); Two motor 24 vdc PM 1.6 hp continuous - Permanent Magnet motors; Pedal driven generator - hub motor (24 V dc 6 amps custom); Two motor overload breakers; PWM Controller 300 amp - 24V; Battery charge indicator - digital panel meter modified; Fuse holder blocks (2) for 24V and 12V circuits; Gel cell batteries (2 Gel Star 70 Ahr 12V standard); NiMH batteries 105 Ahr 24V optional); Charge controllers for gel batteries - 1 0 amp; Horn and turn switch assembly button switch and three position toggle; Brake lights and rear turn lights (12V four fixtures); Panel meters volts and ammeter; High current 24V solenoid breaker (250 amp 24V); Brake switch assembly; Seat belt kit - retractable shoulder belt. This dersign has been patented and, as of July, 2007, the inventor (Andy Schoenberg) has turned over the marketing of the patent to the MILLENNIUM MARKETING GROUP LTD. at www.patentmovers.com. The estimated retail price is $4,500.
Here are some of the specs: two seats in tandem for better balance on the road; 16 kW Asynchronous motor; 1:7 speed reduction; hydride metal nickel 72V battery (liquied cooled) provides 100 Amphours and has an estimated 10 year life; can be recharged in 5 hours from 16A grid power; central carbon body with front and rear units in aluminium; 3.6 sqm of photovoltaic cells (yield 21%) 600W average solar contribution: 18 km/day; McPherson suspension; 4 disc brakes; 3.8 m length, 1.84m width, 1.2m height, 280 kg weight without passengers;110 km range; 120 km/hr. top speed. See www.venturi.fr for more information.
I was informed that for a limited time they would take orders for delivery in 2007 at an $8,500 price. See their website for more information...freedrive-ev.com . If you should buy one of these, please tell them that you heard about it through SunVee.com.
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For many years schools, universities and corporations have been making truly solar-electric vehicles to enter into the many competitions that happen around the world. The rationale for all of the money and effort that goes into these creations is often that the technology will trickle down to products for consumers; yet there is still no commercially available solar-electric untilitarian vehicle on the market. The race cars are fast and efficient, but usually carry only one person, have very limited cargo space and are rather ungainly to drive. SunVee will change that when it is available!
The Lido is a Neighborhood Electric Vehicle. It can travel . .
Myers Motors NmG (No more Gas) is not a low speed vehicle; the top speed is 70 mph! It is a single occupant, three-wheeled electric car that runs on 156 volts DC (thirteen 12-volt batteries in series); has an onboard battery charger; fully integrated electronics system; 1350 lbs curb weight; 72-inch wheel base; 57 inches vehicle height; 30-60 mile range; price is about $15,000-$17,000. More information is available at www.myersmotors.com. . . . .
The Tango is a fairly high-performance EV, that weighs in at over 3,000 lbs, despite its compact body...partly because it carries from 19 to 20 batteries. It features two motors, one on each rear wheel. The range is listed at between 40 and 160 miles, depending on the choice of battery pack. The top speed is 150 mph! They are taking orders now for production models, which will cost between $18,000 and $108,000 US. More information can be found at www.commutercars.com. . . . .
Global Electric Motor's GEM car is a true NEV, with a top speed of 25 mph. Curb weight is 1100 lb. with batteries; length: 96.5 inches; height: 69.5 inches; width: 55 inches; 72-volt shunt GE motor; front wheel drive direct-coupled Dana Spicer differential; GE solid state controller; 10" two-ply street and turf rated tires; six Trojan 12-volt deep-cycle batteries; on-board charger; four wheel automotive-style hydraulic brakes; independent front wheel suspension with two coil spring/shock units; rear suspension is trailing arm with two coil spring/shock units; automotive rack and pinion steering; aluminum welded space frame; structural composite and thermo-plastic body; seats two occupants; automotive-design 3-point safety belts; quartz halogen headlights, front and rear turn signals, high mount rear brake and taillights; automotive safety glass windshield with wiper; rearview & dual exterior mirrors. A four-seat model is available. Price is about $7,000 to $9,000. More information is available at gemcar.com. .
Ford Motor Company's Th!nk comes in both two and four passenger models. Range is up to 30 miles; has a 72-volt battery, 5,000-watt DC motor; charging time is 4 to 8 hours; front and rear hydraulic with coil-over spring shocks; regenerative braking; hydraulic four-wheel drum brakes; drive mode-25 MPH turf mode-15 MPH; gear ratio is set at a constant 10.35:1; automotive-style headlights and tail lights; turn signal lamps; hazard lights; reverse lights; rearview and sideview mirrors; automotive-type glazed windshield; windshield washer/wiper; state-of-charge and low-battery indicator; digital speed display; rear license plate illuminator; odometer with trip meter; on-board charger.
Gorilla NEV .
Nevco's Gizmo is an LSV, with a top speed of 40 mph. Vehicle weight with batteries is from 660 lbs. to 860 lbs., with a payload of 250-500 lbs.; storage capacity 10 cubic feet; dimensions 4' wide x 4.5' high x 8' long; motor 12 peak HP series DC; deepcycle lead acid batteries; 48V system; chassis steel tube truss; body fiberglass; transmission chain drive, single speed; brakes hydraulic disc, hand actuated; range 45 miles standard per charge; recharge power source standard 110V AC outlet. Base configuration with 45 mile battery pack is $8,650 plus shipping. More information available at nevco.com. . . .
Nissan's Hypermini is a concept car, yet to be introduced. It would be a two passenger EV (electric vehicle) that can go 60 miles per hour and travel about 75 miles on a single charge. Dimensions (L x W x H) 2,500 x 1,475 x 1,550 mm; wheelbase 1,790 mm; track (front / rear) 1,255 / 1,260; neodynium magnet synchronous motor, with maximum output 20 kW at 15,000 rpm; lithium-ion batteries; inductive charging system; rear-wheel 2WD; suspension (front) independent struts; suspension (rear) independent parallel-link struts; brakes (front / rear) ventilated discs with anti-lock system; tire size 185 x 55R x 14. Price to be determined. More information is available at nissandriven.com. . .
Made in India, the Reva is an EV that can travel at about 35 mph. The power pack consists of eight 6 Volt EV type lead acid batteries. The dent proof body panels are made of high impact ABS (Acrylonitrile Butadiene Styrene)". It features side impact beams, a specially developed steel frame and electronic regenerative braking. The suspension consists of McPherson strut in front and coil spring at the rear; two door hatchback; payload is two adults + two children (227 kg); city driving range is 80 km; charge time is . |
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The Business Plan outlined below was intially created in 2002 and nothing substantial has occured since then. At this point Kelly Hart has moved on to other interests and is offering this concept as an example of how a similar business might proceed; he is no longer interested in being a principle designer or partner in the business described below. Kelly is willing to answer questions regarding his experience with the Sunmobile or regarding his ideas for the SunVee. There are no products or services related to solar vehicles for sale at this time. Marketing Plan Customers who have bought a SunVee would be given the opportunity to make a substantial commission on sales to other interested persons who have learned about it through this contact. In this way, the customers would become the sales force who would demonstrate and promote the vehicle. Of course the SunVee will generally sell itself because of its value, utility and styling. The fact that there would not necessarily be retailers, with enormous overhead, would allow very competitive pricing, and generous commissions to agents. Once the ball got rolling, this could be a very effective way of selling the vehicle. There would be a main factory that assembles the various components. This factory would best be located in the central United States, adjacent to a railroad siding. Components could be delivered by rail, and the completed SunVees could be shipped via rail to a network of regional distribution points. These distribution points would not need to be warehouses; simple fenced enclosures would suffice to keep them, since they are completely weather-proof. In fact, if they are kept outside, the batteries will be fully charged and the vehicle ready to drive. To get SunVees to customers who have bought them, a regional employee, working on a commissioned basis and driving his own vehicle, would make deliveries directly to the customer's home and would complete the transaction. This could be done with a trailer that carried several SunVees, towed by a van or pickup truck. An economical route could be calculated in advance to make several deliveries during one trip out. The basic SunVee is so simple mechanically that regular auto mechanics should be able to make repairs. Guidance for servicing would be available at sunvee.com, or by phone. Of course there would be a thorough owner's service manual as well. |
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Small neighborhood electric vehicles (NEV's) have been gaining popularity throughout the United States, and in other parts of the world. There are now five companies that manufacture and sell NEV's in the United States. None of these employ solar-electric technology; because of this SunVee would enjoy a unique niche. Since SunVee would be the first utilitarian solar vehicle in the market, it would have considerable prestige as an originator. NEV's, also known as Low Speed Vehicles (LSV's) can legally be driven on any street with a posted speed limit no greater than 35 mph. This means that most urban environments, and many small, rural communities would be appropriate locales for the SunVee. Because the SunVee is completely pollution free, it will appeal to the wide range of people who are concerned about our environment; many of them have been waiting for a practical solar car for many years. As gasoline and energy costs escalate in the future, the SunVee will become even more attractive, because solar energy is free. Batteries will need replacement perhaps every five years, but that is a comparatively small expense. In addition, thanks to recent legislation, NEV owners are now eligible for a federal tax credit.
Ease of charging will also attract customers. Unlike all other NEV's available, the SunVee does not need to be plugged in to be charged. The solar-electric panels and the charge controller take care of the batteries in the best possible manner, keeping them charged and ready to go, but not overcharging them. The owner can simply park the SunVee in the sun and the vehicle will take care of itself; there is no need to ponder whether it is necessary to plug it in or not. Of course if it is a cloudy day and the owner wants to charge the vehicle, it can be plugged into ordinary house current to do so.
Styling Business Concept Current Situation Key Success Factors Financial Needs Vision Statement Milestones and Phases of Equity Investment Overall Strategy We will closely integrate all of our marketing and sales efforts to project a consistent image of our company. The image we will present of the SunVee is one of great fun to drive, ease of refueling (park it in the sun), extreme economy (no fuel cost), and evironmental responsibility (no pollution nor use of fossil fuel). We will emphasize these factors in our sales advertising by showing people driving with pleasure, while bypassing gas stations, ATM's, and smog test stations. Sales Tactics Advertising Promotions/Incentives We will encourage anyone who purchases a SunVee to become a commissioned agent, thereby generating an ever-expanding sales force who are enthusiastic about demonstrating the SunVee, and gaining significant sales commissions. Publicity We plan on holding a press conference to announce the introduction of the SunVee. We will announce this press conference widely, and give special invitations to members of the media. We expect that the SunVee will become significant news and will generate much free publicity. Trade Shows, Etc. Human Resources Plan Our human resources strategy will be to treat all employees with respect, to create a positive and productive environment, to be fair and consistent, and to involve employees in decision-making as much as possible. New staff will be added as needed to accomplish the goals of each phase of development. Our recruitment strategies for identifying candidates and hiring individuals to fill these positions will be based on a combination of referrals, classified advertising in local newspapers or other web-based methods. Product Delivery We believe that maintaining excellent relationships with our suppliers is an important part of successfully delivering our product. We will pay our suppliers within terms; we will treat their sales people and customer service people with respect; we will maintain a relationship with key executives at our core suppliers; and we will let our suppliers know that we appreciate their work. Because of these steps, our suppliers will be willing to really go to bat for us when we need their extra help. Financial Projections Phase II (2004) would invlove hiring a Manager ($40/hr.), Secretary ($20/hr.), Accountant ($25/hr.), Inventory person ($20/hr.), Shop Foreman ($25/hr.), 5 Mechanics ($20/hr.) and 5 Assembly persons ($15/hr.). Phase III (2005) would add to the personnel a Webmaster/clerk ($25/hr.), a Technical Support person ($25/hr.), a Publicist ($25/hr.) and would increase the Assembly Team to 20 people for the last half year. (2006) would increase the Assembly Team in increments to 30 people. (2007) would see a doubling of the Assembly Team to 60 people, with the addition of an Assistant Manager ($30/hr.) and general raises for all of the key employees. It is assumed that 10 people can assemble one SunVee each day and that each SunVee will have a retail price of $10,000.
Pofit and Loss Projections:
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carseek.com Features this article, titled Subaru Makes 2009 the Year of EV, which discusses the Subaru R1e, along with the Tesla Roadster, the Toyota Prius, and Ford's Escape. |
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