Penn Electric Racing
02-26-2013, 01:54 PM
Hi all,
I'm posting on behalf of the Penn Electric Racing team at the University of Pennsylvania. We've recently taken interest in the new Formula SAE Electric competition.
We've been making some progress on converting an old chassis into an EV to serve as a testbed vehicle for our various components. Things have been going relatively well so far but we have a few questions (mostly rule-based) that we were hoping the community could help us with.
Our first concern relates to the requirement of an Electric System Advisor.
A5.3 – Electric System Advisor – Electric Teams Only – Electric teams are required to designate an Electric System Advisor “who can advise on the safety systems to do with HV electrical configuration and control systems.
We are unsure how to proceed in finding an individual that fits this description. We have already consulted our professors but finding someone with the right industry experience seems to be a bit of a struggle. If anyone has any advice or could let us know what avenues we should be pursuing it would be greatly appreciated.
Our second concern is with the grounding of our composite components.
EV4.4.2 All parts of the vehicle which may become electrically conductive (e.g. completely coated metal parts, carbon fibre parts, etc.) which are within 100mm of any tractive system or GLV component, must have a resistance below 5 Ohm to GLV system ground.
We have looked into this to a degree and our top options seem to be including an aluminum mesh within the composite itself or some type of conductive coating/epoxy. We're not sure if we're somehow missing an obvious solution and were curious to see what other EV teams have found as a solution.
Lastly, we were wondering what kind of relays any EV teams are using for accumulation isolation. So far, the only suitable unit we have located is the KILOVAC EV200 Series Contactor With 1 Form X
Contacts.
Thanks for any help that you would be able to provide! As a fledgling team, we hope that the community can help us with our initial speed bumps and we hope to see you at a competition in the future!
I'm posting on behalf of the Penn Electric Racing team at the University of Pennsylvania. We've recently taken interest in the new Formula SAE Electric competition.
We've been making some progress on converting an old chassis into an EV to serve as a testbed vehicle for our various components. Things have been going relatively well so far but we have a few questions (mostly rule-based) that we were hoping the community could help us with.
Our first concern relates to the requirement of an Electric System Advisor.
A5.3 – Electric System Advisor – Electric Teams Only – Electric teams are required to designate an Electric System Advisor “who can advise on the safety systems to do with HV electrical configuration and control systems.
We are unsure how to proceed in finding an individual that fits this description. We have already consulted our professors but finding someone with the right industry experience seems to be a bit of a struggle. If anyone has any advice or could let us know what avenues we should be pursuing it would be greatly appreciated.
Our second concern is with the grounding of our composite components.
EV4.4.2 All parts of the vehicle which may become electrically conductive (e.g. completely coated metal parts, carbon fibre parts, etc.) which are within 100mm of any tractive system or GLV component, must have a resistance below 5 Ohm to GLV system ground.
We have looked into this to a degree and our top options seem to be including an aluminum mesh within the composite itself or some type of conductive coating/epoxy. We're not sure if we're somehow missing an obvious solution and were curious to see what other EV teams have found as a solution.
Lastly, we were wondering what kind of relays any EV teams are using for accumulation isolation. So far, the only suitable unit we have located is the KILOVAC EV200 Series Contactor With 1 Form X
Contacts.
Thanks for any help that you would be able to provide! As a fledgling team, we hope that the community can help us with our initial speed bumps and we hope to see you at a competition in the future!