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Zero Motorcycles Forum | 2013+ / Re: Zero SR power loss - refusal to start
« on: June 08, 2014, 03:45:02 AM »
Mssr Dolan,
seems I'm not the only one with problems. Good to have a forum like this to share issues and solutions.
Yes, the SOC indicator is not so reliable it seems, and it was my experience that a "cold boot" was often required to ensure it showed correctly. I hope that it is rectified along with the intermittent stop problem before shipping up here (bike is still with Melbourne dealer, awaiting training to assist with correct setup).
Cannot blame the dealers who have no previous experience with electric bikes, and often not a great deal of experience with issues electric or electronic (although with fuel injection and computer control the latter is improving). High current, high voltage electrics is another area of expertise however, and procedures like torquing of high current electrical connections may not be fully understood, where it is in fact, critical. Hopefully training will address some of these issues. This is a very new field, as PVs were 40 years ago.
Ferrites are a magnetic material which, depending on formulation, will "absorb" high order harmonics. You often see them on plugpack supplies, as a lump near the plug, to do this and "suppress" these harmonics and "shield" the equipment being supplied from interference (caused by these harmonics produced by the switch mode power unit in the plugpack). Highly necessary on a >60kW power supply (aka Zero SR). There are many other ways interference may be caused, and many ways to protect systems from this - intelligent design, good materials and craftsmanship in construction all obviate issues down the track.
Trust this answers your query.
Could you inform me about the motor recall? I have not heard of this before.
Nick
seems I'm not the only one with problems. Good to have a forum like this to share issues and solutions.
Yes, the SOC indicator is not so reliable it seems, and it was my experience that a "cold boot" was often required to ensure it showed correctly. I hope that it is rectified along with the intermittent stop problem before shipping up here (bike is still with Melbourne dealer, awaiting training to assist with correct setup).
Cannot blame the dealers who have no previous experience with electric bikes, and often not a great deal of experience with issues electric or electronic (although with fuel injection and computer control the latter is improving). High current, high voltage electrics is another area of expertise however, and procedures like torquing of high current electrical connections may not be fully understood, where it is in fact, critical. Hopefully training will address some of these issues. This is a very new field, as PVs were 40 years ago.
Ferrites are a magnetic material which, depending on formulation, will "absorb" high order harmonics. You often see them on plugpack supplies, as a lump near the plug, to do this and "suppress" these harmonics and "shield" the equipment being supplied from interference (caused by these harmonics produced by the switch mode power unit in the plugpack). Highly necessary on a >60kW power supply (aka Zero SR). There are many other ways interference may be caused, and many ways to protect systems from this - intelligent design, good materials and craftsmanship in construction all obviate issues down the track.
Trust this answers your query.
Could you inform me about the motor recall? I have not heard of this before.
Nick
