1898 electric porche

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acmotor
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1898 electric porche

Post by acmotor » Wed, 29 Jan 2014, 17:03

This is interesting though the cinic in me wonders why this comes out right now !
If only it was pure history, not " look at us, We have always known electric was the way to go."
http://www.bbc.co.uk/news/business-25934289    Edit: link !

Octagonal motor.... Does that mean 4 pole ?
12 speed gearbox with 2 reverses ! What Ferdinand wouldn't have done for a PWM MOSFET controller !

Anyway, it would look great in the foyer of your mansion.

Image
Last edited by acmotor on Wed, 29 Jan 2014, 06:05, edited 1 time in total.
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Richo
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1898 electric porche

Post by Richo » Wed, 29 Jan 2014, 20:43

I reckon he would have had about 10kWh on that.
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acmotor
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1898 electric porche

Post by acmotor » Wed, 29 Jan 2014, 21:09

Another source quotes..
" The Porsche P1 was first introduced in Vienna, Austria on June 26, 1898. At the time, Ferdinand Porsche was just 22 years of age and designed the electric drive vehicle as his statement car. Weighing 130 kg, it produced 3 horsepower. To improve performance, overdrive mode increased this to 5 horsepower, with a top speed of 34 km/h. A 12-speed control unit managed the power, propelling the 1,350 kg vehicle to a maximum range of 79 km. Built on a wooden chassis with wooden wheels, the P1 could be driven as a coupe or Phaeton. "

And some ..... where 500kg of batteries were used. Basic Lead acid I assume.

So overdrive mode ? Do they mean a 32V motor running off 120V ( see voltmeter )
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1898 electric porche

Post by Johny » Wed, 29 Jan 2014, 21:17

It looks like up to 80V for a short time.
http://press.porsche.com/news/release.php?id=841

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acmotor
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1898 electric porche

Post by acmotor » Thu, 30 Jan 2014, 01:28

44 cell x 2.35V = 103V at float, around 88V nominal
x 120Ah so 10kWh as Richo reconned. (probably less realiseable kWh)

Interesting 10,000Wh/78km would have been 128Wh/km at 24km/h !.... on wooden wheels with pneumatics tyres (?) and some 1300kg weight with sight seeing aerodynamics.
That tells me that outrageous EV range claims are nothing new. Image

Electrical short circuit brake is mentioned so was it a PM motor or shunt wound ?
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1898 electric porche

Post by acmotor » Thu, 30 Jan 2014, 05:47

The history is fascinating.
The Porsche used 'Tudor' batteries.

From wiki ( sorry )
Henri Owen Tudor (30 September 1859, Ferschweiler – 31 May 1928) was a Luxembourgish engineer, inventor, and industrialist. He developed the first practical lead-acid battery in 1886 (Gaston Planté was the French physicist who invented the lead-acid battery in 1859).
Tudor established a factory in Rosport for the purposes of manufacturing the batteries. However, the cost of manufacturing the product in Luxembourg, which had no lead industry and little domestic demand of its own, forced Tudor to expand manufacturing overseas, particularly in Belgium, France, Germany, and the United Kingdom. Tudor died in 1928, at the age of 68, of lead poisoning.

The irony of it all !
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