This blog documents the restoration, and conversion, of a 1965 Humber (Singer) Vogue to a fully electric vehicle. The Vogue will be powered by an 11kW(modified), 3 phase industrial AC motor, controlled by an industry standard Variable Speed Drive (VSD) or Inverter. To be able to produce the 400 volts phase to phase the VSD will need about 600 VDC of batteries. A big thanks to the contributors on the AEVA forum:

Monday, July 15, 2013

Tailshaft on again

Well the tailshaft is back in the car.
The balancing folk identified that the spigot on the front flange of the tailshaft and the "cup" in the coupler did not perfectly match. To quote Jeff, "any movement is too much". They changed the flange on the front of the tailshaft then balanced the whole lot together.
(I suspect that the flange was imperial and someone machined the coupler to a metric size believing that the flange was metric.)
The front flange holes now comfortably fit the M10 bolts (butchering gone).

It's a lot bit better - but it's still not perfect. At 90 km/h on the tollway it wasn't scary - but it wasn't comfortable either - still a lot of tailshaft speed vibration.

I didn't put it on stands to test it as I had very little time, but I hope to do an axle stand test maybe be next weekend.
My plans is to:
1. Record the vibration audio again just because I am not sure that it's vibrating at tailshaft speed - it feels double that.
2. Try my SS hoseclamp at 45deg increments.
3. Try dampening out the front motor cradle (with my hands) and see how much that is contributing.

I drove to work with about 4.5km of my 15km drive on the tollway this morning at around 90 to 95km/h (traffic speed in left lane) and the Vogue used almost the identical amount of power as when I drive to work via slow backroads. I backed into my parking spot with a reading of 3.14 AH. That's about 125 Wh/km battery to wheel. Wind was practically non-existant - the BOM site also showed almost no doppler wind reading. Current consumption at speed was quite modest. So the Vogue CD isn't awful at all.


Anonymous said...

Hi John, are the bolts an interference fit?, and are they the same bolts as used when the shaft was balanced?. If not that could explain your residual problem.

Johny said...

Hi Andrew
Sorry I could publish your comment last night but for some reason couldn't respond. Yes, same bolts. I gave them everything and they made up a half key to compensate for the key mass as well. I should have time to check it more thoroughly this weekend. All I did last Sunday was get it back on and drive it.