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9944Re: [solectria_ev] DMOC445 help

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  • Randy Carter
    Jul 29, 2014
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      About the only help I can offer is the Generalized Electric Vehicle Control Unit (GEVCU) developed by Jack Ricard over at http://www.evtv.me It's not a cheap option but it is open source based on Arduino. All schematics and software are available so one could duplicate it and tweak it to their own needs. It was specifically developed for the DMOC645 but can easily be loaded with programs to operate any CAN buss driven motor controller.

      "What the detractors and critics of electric vehicles
      have been saying for years, is true. The electric
      vehicle is not for everybody, given the limited range
      it can only meet the needs of 90% of the population."

      Ed Begley Jr.

      ---------- Original Message ----------
      From: "Patrick Collins pcollinskume@... [solectria_ev]" <solectria_ev@yahoogroups.com>
      To: "solectria_ev@yahoogroups.com" <solectria_ev@yahoogroups.com>
      Subject: [solectria_ev] DMOC445 help
      Date: Mon, 28 Jul 2014 18:16:23 -0500

      Hey, I have posted here a couple of times, but I could really use the help of someone knowledgeable of the Azure Dynamics CAN DMOC. I'm a Master's student and I have got the vehicle driving (hits around 50, and can easily do more). However, when I activate regen it seems like I am getting echoing on the CAN bus. I have two termination points on the network, and to my knowledge the DMOC has not logged any errors lately (need to double check). Additionally, in order to accelerate I have to barely push on the pedal. Once it gets going I can gradually apply more pedal. If you try to apply too much pedal, things shake and it feels like there's no power at the motor. Our ECU was programmed by New Eagle (who at the time had partnered with Azure and Ford for the transit). I feel like these issues are probably trivial but since Azure is gone, tech support is non existent. Controller: Azure CAN DMOC445Motor: Azure AC55ECU: New Eagle (pedal came from them too)Battery pack: 35 kWh Calb LiFePO4 (3.3 VDC, 100 Ah, 104 cells)BMS: Elithion Lithiumate ProVehicle: 1997 GMC JimmyDirect drive to rear differential Email me at pcollinskume@... if you are interested in helping and I can get you more details. Thank you,Patrick CollinsMechanical EngineeringUniversity of KansasM.S. 2014B.S. 2012
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