Wednesday, June 10, 2015
ANOTHER ELECTRIC PROPULSION MILESTONE
Eight years after I installed electric propulsion in BIANKA I have never looked back or regretted it. It has reduced maintenance and cost close to zero so that I can concentrate on other things like refinishing the galley area and on deck brightwork. Still I do try and keep an eye on all things involving electric propulsion. I came across this article today involving electric propulsion drive train in trucks. Some quotes that stood out to me:
"Twelve years ago, Ian Wright and some fellow engineers launched Tesla Motors, a Silicon Valley company that has helped jumpstart the market for electric cars. Now, the Tesla co-founder wants to electrify noisy, gas-guzzling trucks that deliver packages, haul garbage and make frequent stops on city streets."
A noisy garbage truck with brakes squealing in early mornings while making frequent stops collecting trash may be a thing of the past. Having the ability for repetitive regenerative braking makes a lot of sense for such a vehicle. As does regen on boats like BIANKA. Helping to recharge the batteries while doing something useful and the high torque availability makes sense too!
"A truck with a Wrightspeed powertrain can run on batteries for about 30 miles before the turbine, which runs on diesel or natural gas, kicks in and recharges the battery. The system roughly doubles the fuel efficiency of trucks and reduces the cost of maintenance"
This is pretty much the same technique I use on BIANKA and it has worked well for the past eight years and the maintenance costs for the boat has dropped precipitously. Good to see these ideas starting to make their way back on land too.