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Making a hybrid car? Answered

In the early 70s Mother Earth news advertised a kit to make a hybrid car using a 5 horse engine to run an alternator that fed a battery bank which in turn ran an airplane engine starter motor coupled to the transmission shaft. Is that still viable? Or does anybody have that set of plans for sale?

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bennelson (author)2011-11-15

I have a copy of those plans. I was given them by an attendee at the 2010 Mother Earth News Fair in Seven Springs, Pennsylvania, when I was giving a presentation on my electric car. The plans are 4 "blueprint" style pages, which fold out to rather large. Lately, I have been kicking around the idea of building a dedicated Hybrid Car, and did a search here on Instructables to see if anyone else had done one. That lead me to this page! I do NOT believe these plans are available anymore, but I did find source back to the original article on the Mother Earth News web page. They actually have a very good archive there! LINK TO MOTHER EARTH NEWS HYBRID CAR ARTICLE

A
t the end of the article, it lists where to send you money to get the plans, but I REALLY doubt they sell them any more.

Later, at the Mother Earth Fair, I met a guy who worked for Mother Earth News in that time period. He was actually on the team that did the work on the blue-prints!

I'm not interested in selling my copy, but if they are out of print, maybe making a "backup" copy, stored at a seperate location wouldn't be such a bad idea!

The plans that I have are called "Mother Shows You How to Build the 75 mpg Hybrid Electric Car", and the copyright is 1979.

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Re-design (author)2009-09-23

Yes it's still viable but it's called the Prelude.

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EliWatney (author)Re-design2009-09-28

Hardly, the Prelude doesn't come close to the efficiency claimed by the designers. The one I saw was a Honda N600, the engine was removed while the bell housing and the transmission stayed in placed. A splined coupling was placed over the transmission shaft, the other end was slipped over the output shaft of a DC10 engine starter motor. That starter motor has a lot of horse power and is pure electric. Next 6 batteries were loaded into the engine compartment. A 5 horse Tecumsah engine was put under the hood that was connected to a high output alternator via a drive belt. It seemed odd to start your car with a pull rope but once the 5 hp was up to speed the alternator fed the bank and the bank fed the DC10 motor. It could average upwards of 75 mpg but it does take a bit of machine work to accomplish, that and dealing with your car sounding like a lawn mower. Given the advances in home generating systems, key start, silencers and long run times can be had. I need the plans as I am unsure of the electrics within the system as originally plotted.

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Re-design (author)EliWatney2009-09-28

I meant the Prius. Didn't check my typing.

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