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Electric Vehicles - continued — Parallax Forums

Electric Vehicles - continued

stamptrolstamptrol Posts: 1,731
edited 2008-07-30 16:09 in General Discussion
·Theres been a bit of a discussion over on the Robotics forum about electric bikes and cars.

· I had a few photos of my electric vehicle project and thought this was a more appropriate place to show them.

· As always, if you have any questions, fire away.

· Cheers

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Tom Sisk

http://www.siskconsult.com
wattsun_battery_heater.jpg
900 x 675 - 51K
wattsun_motor_in_car.jpg
900 x 599 - 75K
wattsun_motor_in_car2.jpg
900 x 600 - 76K
wattsun_motor_transmission.jpg
900 x 600 - 75K
wattsun_on_street.jpg
900 x 600 - 57K

Comments

  • PJAllenPJAllen Banned Posts: 5,065
    edited 2008-07-28 15:08
    What's the range on·a charge?
    What's the top speed?
    What's the acceleration ( 0 to ___ in ___ sec)?
  • stamptrolstamptrol Posts: 1,731
    edited 2008-07-28 16:52
    PJ,

    Around town, range was about 30 miles. Really very dependent on how many stops and starts there are as thats where most of the energy goes. In winter, range was significantly reduced due to cold batteries and extra drag due to thick lubricants and use of the fuel-burning heater and its fan.

    In 4th gear and the motor sucking maximum amps of around 300 A, you could touch 45 - 50 mph....briefly.

    Tests indicate average energy "mileage" at about 200 Whrs per km when driving very conservatively. You have to remember this was in 1982 and the choices of donor vehicles were quite limited. Getting an all-up weight under 2000 lbs was quite a chore. I think redoing project now would give a measurably lighter vehicle.

    Acceleration was never specifically tested once I found that in normal city traffic I could accelerate with the normal traffic flow.

    The battery string consisted of 3 parallel sets of 3 x 12v batteries. System capacity was 36 volts at approx 300 AHrs.

    Regards,

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    Tom Sisk

    http://www.siskconsult.com
    ·
  • PJAllenPJAllen Banned Posts: 5,065
    edited 2008-07-28 23:45
    ** fuel-burning heater **
    Like kerosene or something?

    ** this was in 1982 **
    No longer on the road?
  • william chanwilliam chan Posts: 1,326
    edited 2008-07-29 04:37
    Did the electric motor overheat or get very hot?
    Any active cooling?

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    www.fd.com.my
    www.mercedes.com.my
  • John BondJohn Bond Posts: 369
    edited 2008-07-29 11:45
    That Dustbin ah sorry Datsun is still being made as a Nissan pick-up in Africa, but the last model will be produced next month. You can even buy a special edition model if you’re quick. the special edition looks just like your car...

    http://www.cartorque.co.za/0422.htm

    South African law requires that a motor manufacturer must supply parts for 10 years after the model is discontinued and must carry 95% (by volume, not number) of all parts requirements for this period so if you need non electrical spares, Nissan SA will have them.

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  • stamptrolstamptrol Posts: 1,731
    edited 2008-07-29 11:49
    Re: fuel burning heater - at the bottom left of the first pic, you can see a small tank which held the gasoline for the fuel burning heater. It was a Bosch after-market unit that was offered in Volkswagens and Peugeot cars here in Canada. They are widely used in off-road and forestry equipment as well. They burn diesel and operate on a timer to warm up the engine compartments before the machines are started.

    Re:1982
    I ran the car for 2 - 3 years then sold it to fellow who put the gas engine back into it and ran it for another few years. It was a 1971 model Datsun 1200 and was showing its age by that time. Also, while I had it, I loaned it to the local university who used in their Mechanical and Electrical engineering programs for a couple of projects.

    Re: motor
    The motor was a real workhorse and never got very hot (probably about 120 F on the outside) . It was a relatively high speed machine ( 8500 rpm) so the shaft-mounted fan gave a good airflow through the unit. Because the transmission was still in the drivetrain, it was very easy to allow the motor to rev high enough to give good cooling. When I sold the car, the motor went to a friend who converted it to a welder and its still going, to my knowledge.

    ·Re: John,

    ·Thanks for that Cartorque reference; really brings back memories....and they really were pretty tough little cars. A lot of us rallied Datsun 510s and they could hold their own with anything else on the road. In the early years, many Japanese cars suffered early deaths here in Canada due the road salt and generally harsh conditions in the winter.

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    Tom Sisk

    http://www.siskconsult.com


    Post Edited (stamptrol) : 7/29/2008 11:58:30 AM GMT
  • John BondJohn Bond Posts: 369
    edited 2008-07-30 10:53
    Talking Electric cars, GeekTrivia has an interesting post this week on the most famous of all electric cars

    http://blogs.techrepublic.com.com/geekend/?p=1408

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  • noobmunchernoobmuncher Posts: 124
    edited 2008-07-30 16:09
    Okay being a mechanics student as well as just having a avid interest in alternative transportation i found these vehicles very interesting.
    www.think.no/think
    They are very well designed from all the aspects i can see. I especially like how they have constructed their business and vehicles to be almost entirely recycled or reused. Also it is interesting how they take care of their product from the start to the finish, taking the burden of finding maitenence for it (which is very diffricult for electric cars).
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