| Owner | Bob Simpson | ||||||
|---|---|---|---|---|---|---|---|
| Location | Banks, Oregon US map | ||||||
| Web/Email | WebPage | ||||||
| Vehicle | 2003 BMW 325i A young sports car about to be transformed into a serious performer | ||||||
| Motor | Siemens 1PV5135WS28 3-Phase AC This AC Induction motor is built for 700 Volt operation for better torque at high RPM, with a 10,000 RPM upper limit. | ||||||
| Drivetrain | RWD, using original manual transmission, with added limited slip differential to handle the new torque | ||||||
| Controller | Evisol EVI200 A relatively new product - 200kW unit designed and calibrated for this Siemens four pole motor. | ||||||
| Batteries | 2010, 3.30 Volt, Lithium-Ion This battery pack system is modular and scalable with very high power capability. BMS software tracks cell behavior for precise and automatic health monitoring for trends and deltas. | ||||||
| System Voltage | 663 Volts | ||||||
| Charger | Brusa NLG514-WA Water cooled 3.3kW charger. Input source is 220VAC or 120VAC. Output has just enough voltage to top off the pack at 720V. | ||||||
| Heater | MES-DEA RM3 4kW fluid heater for cabin heat/defrost, also has electrically heated seats. | ||||||
| DC/DC Converter | Brusa BNW415 This is a 1200 Watt unit | ||||||
| Instrumentation | Original except for replacement of the tachometer(behind panel) with a multi function programmable display (EVision) developed by Metric Mind Corp. | ||||||
| Top Speed | 170 MPH (273 KPH) This value comes from an official simulation using the specifics of this motor/drive system and BMW itself. I will have to buy special tires to find out. | ||||||
| Acceleration | Significant improvement over the original gas engine because of nearly 2x torque that is flat from zero to nearly 8000 RPM. I will post the after conversion ET results in May/June 08 from drag runs at Portland International Raceway to compare against the ICE baseline data taken at PIR just before pulling the motor. | ||||||
| Range | 55 Miles (88 Kilometers) This range is based on 60-65 MPH level freeway speeds. Specifically sized for a 40 mile daily commute to achieve less than 75% depth of discharge range to extend cell life. | ||||||
| Watt Hours/Mile | 260 Wh/Mile Estimate based on known references | ||||||
| EV Miles |
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| Seating Capacity | 5 Adults very comfortably | ||||||
| Curb Weight | 3,300 Pounds (1,499 Kilograms) Weight and it's distribution is unchanged after the conversion. The intention is to maintain the original handling traits, without affecting the interior in any way. | ||||||
| Tires | Stock, for now | ||||||
| Conversion Time | 10 months, not really sure how many hours. | ||||||
| Conversion Cost | More than a new car costs but the EV components will outlast this chassis and will go into another future EV.. | ||||||
| Additional Features | The original air conditioning system will be used but with a variable speed AC motor/compressor unit that gets power from the traction battery pack rather than a compressor driven off the ICE. This is a very compact unit made by Masterflux, model Sierra 06-0982Y3. | ||||||
| This conversion is described and detailed on the WebPage website along with a high performance off road motorcycle. | |||||||
2003 BMW 325i
(under construction)
Last Updated 02-15-2008
Copyright © 1997-2008 by Mike Chancey