Quote:
Originally Posted by ceege
. . .
The requirements for this boat is to run on the electric motor for the 4 hour downstream tour, and then use the gas engine to get back upstream in an hour. It has to make 2 consecutive tours.
The plan is to charge the batteries off the engine's alternator. Perhaps with a voltage booster in between the alternator and batteries.
This is where I need advice.
1) Does this sound remotely feasible?
2) I'm a bit hazy on my recharging fundamentals... is it correct that Voltage input needs to be higher than that of the battery pack it's charging, and Amperage is proportional to charging time up to a certain max amperage(3C)?
3) Anyone know where to find high quality, high output alternators?
Sorry for the list of questions, I've tried searching and haven't found the answers yet.
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You might consider starting with an existing power plant and series-parallel hybrid drive:
Specifications of an NHW11 engine and drive system:
- 52 kW (70 hp)
- 33 kW (44 hp) electric motor
The parts are available from Ebay but the control electronics will be a little tricky. They also have catalytic converter exhausts available so you won't be choking up the air on the river. For example, Ebay items:
390107196393 - transaxle
320048244146 - engine
370275265383 - inverter electronics
310133488258 - maintenance manuals
You also have the option of upgrading to an NHW20 drive system with a little more power. Fuel consumption will be impressive with either system.
GOOD LUCK!
Bob Wilson