Difference between revisions of "Range"
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| − | Some rough estimates by assuming that we will have an energy use similar to [http://proev.com ProEV] and making use of some of their published [http://www.autobloggreen.com/2008/01/28/revisiting-the-tesla-roadster-as-a-track-car-it-could-happen/ data]: |
+ | Some rough estimates by assuming that we will have an energy use similar to [http://proev.com ProEV] and making use of some of their published [http://www.autobloggreen.com/2008/01/28/revisiting-the-tesla-roadster-as-a-track-car-it-could-happen/ data] (more data [http://proev.com/Misc/RE/012011/Rewriting%20the%20rules.pdf here]): |
| − | * Race pace: 0.75 kWh/km (aerodynamically the Saker will |
+ | * Race pace: 0.75 kWh/km (aerodynamically the Saker will be slipperier, but we only have rear wheel regen. To be safe bump this estimate up by 10% to give us 0.825) |
| + | * Warm up pace: 0.15 kWh/km (which is ~double 0.081 kWh/km which is what [http://proev.com ProEV] estimate for road driving) |
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| − | * Road driving: 0.15 kWh/km |
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NZSC Series distances: |
NZSC Series distances: |
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* largest event is 9 laps of ~3km circuit = 27 km |
* largest event is 9 laps of ~3km circuit = 27 km |
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* Plus warmup lap = 30 km |
* Plus warmup lap = 30 km |
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* Plus victory lap = 33 km. |
* Plus victory lap = 33 km. |
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Energy storage required (kWh): |
Energy storage required (kWh): |
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* Warmup: 3km x 0.15 = 0.45 (this might be an underestimate) |
* Warmup: 3km x 0.15 = 0.45 (this might be an underestimate) |
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Required usable battery capacity ~ 23.31 kWh |
Required usable battery capacity ~ 23.31 kWh |
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| − | Being more generous with the warm up, we will double the required energy (e.g. 3km x 0.3): |
+ | Being more generous with the warm up, we will double the required energy (e.g. 3km x 0.3): Required usable battery capacity ~ '''23.76 kWh''' |
| − | Required usable battery capacity ~ '''23.76 kWh''' |
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-- Main.PhilipCourt - 23 May 2008 |
-- Main.PhilipCourt - 23 May 2008 |
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| + | <div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow: hidden;" id="_mcePaste"><!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --> <p align="JUSTIFY" style="margin-top: 0.21cm; page-break-after: avoid;">http://carrott.org/cgi-bin/twiki/view/ElectricSaker/Range</p> </div> |
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Revision as of 17:27, 16 July 2011
Some rough estimates by assuming that we will have an energy use similar to ProEV and making use of some of their published data (more data here):
- Race pace: 0.75 kWh/km (aerodynamically the Saker will be slipperier, but we only have rear wheel regen. To be safe bump this estimate up by 10% to give us 0.825)
- Warm up pace: 0.15 kWh/km (which is ~double 0.081 kWh/km which is what ProEV estimate for road driving)
NZSC Series distances:
- largest event is 9 laps of ~3km circuit = 27 km
- Plus warmup lap = 30 km
- Plus victory lap = 33 km.
Energy storage required (kWh):
- Warmup: 3km x 0.15 = 0.45 (this might be an underestimate)
- Race laps: 27km x 0.825 = 22.41
- Victory lap: 3km x 0.15 = 0.45
Required usable battery capacity ~ 23.31 kWh
Being more generous with the warm up, we will double the required energy (e.g. 3km x 0.3): Required usable battery capacity ~ 23.76 kWh
-- Main.PhilipCourt - 23 May 2008