[EVDL] Reversing a shunt or Sepex motor was VW Epri Bus

2019-05-26 Thread Mark Hanson via EV
Hi Dave etc Normally the GE etc Sepex or Finer field shunt motors use a FET H bridge that diagonally PWM's in forward direction on the field and then when you flip in reverse it immediately uses the other two diagonal Fets to go backwards. No noticeable delay from forward to reverse. Have a

Re: [EVDL] EPRI TVA VW electric bus

2019-05-26 Thread Mr. Sharkey via EV
What we seem to have deduced is that the controller and motor are a matched pair. It seems without doubt that the controller manages the voltage delivered to both the armature and the fields, otherwise the "reverse switch" wouldn't be workable. I'd image that the sequence would be something lik

Re: [EVDL] EPRI TVA VW electric bus

2019-05-26 Thread Lee Hart via EV
Mr. Sharkey via EV wrote: What we seem to have deduced is that the controller and motor are a matched pair. It seems without doubt that the controller manages the voltage delivered to both the armature and the fields, otherwise the "reverse switch" wouldn't be workable. Yes, that sounds likely.

Re: [EVDL] EPRI TVA VW electric bus

2019-05-26 Thread Paul Compton via EV
The Lucas Bedford vans used a sepex motor. Armature control was via an SCR, with the field driven via a bipolar transistor circuit. Battery voltage was 216v nominal of 3KQ11 tubular plate lead acid. It was usually the field controller that The first version of the Reva G-Wiz is a sepex motor too.

[EVDL] Smart ED charging issue

2019-05-26 Thread Bill Collins via EV
Does anyone here have any experience diagnosing the Smart ED? Here's what's going on with mine: My 2013 Smart ED is no longer charging. When I plug it in to the EVSE, I hear the usual clicking of contactors in the car, the EVSE contactor closes and then opens again within a half second, and t

[EVDL] $35k std Tesla-3 w/ software-locked features being delivered

2019-05-26 Thread brucedp5 via EV
https://electrek.co/2019/05/26/tesla-start-selling-standard-range-model-3-locked-features/ Tesla starts delivering ‘Standard Range’ Model 3 at ~$35,000 with locked features May. 26th 2019 Fred Lambert [images https://i0.wp.com/electrek.co/wp-content/uploads/sites/3/2019/05/TEsla-Model-3-Stand

[EVDL] EVs= NO Risk> "Electromagnetic radiation" is not "radioactivity"

2019-05-26 Thread brucedp5 via EV
https://www.sierraclub.org/sierra/electric-cars-dont-pose-risk-for-radiation Electric Cars Don't Pose a Risk for Radiation Experts agree: There is no unhealthy radiation exposure from EVs. May 21 2019 Bob Schildgen Hey Mr. Green, I have an electric Fiat 500e that I love. I have been hearing fl

Re: [EVDL] Smart ED charging issue

2019-05-26 Thread brucedp5 via EV
I'll assume you've tried both a level2 and a level1 EVSE with the same symptoms. I suggest you the search link https://www.google.com/search?q=Smart+ED+charging+Malfunction to pose your question on the several smart forums that come up. For EVLN EV-newswire posts use: http://evdl.org/archive