Hybrid problem

[rexamillion59]

Love it overall. The 500watt hub motor works great 20 mph no problem have hit 25. And the gas engine works great with the 8 speed internal hub rear wheel. My problem is any time I start my gas engine my electric motor shuts down and I get error controller problems. I have to plug the charger in the battery to get the system going again. Any ideas or suggestions appreciated.
Thanks

 

[Steve Best]

Is it electric interference from the ignition system messing up the controller, or the motive push messing up the controller's feedback?

If it is ignition interference,
1) use a resistor plug and resistor wire
2) put the coil and plug wire as far from the controller and its wiring as possible.
3) encase the coil, sparkplug wire, controller and controller wires in as much grounded conductive cover as possible (Faraday Cage).

If it is motive push overpowering the controller electronics you will have to try another controller or put a main power or disconnect switch in the circuit for when you use the gas motor.

Not that I have any experience with your specific installation, but this is what I'd do in an industrial application.

Steve

 

[rexamillion59]

Thanks Steve for your response. I believe it's electric interference. I will try your suggestion

 

[rexamillion59]

I moved the controller to the handle bars and solved the problem

 

[Steve Best]

Ah! Wonderful!

Can you post more picts and a write up to what you've done. I'm really interested.
I just put together my first 48cc gas shifter, have a mid mount electric and 10ah LiFe batteries ready to go.

Looking for any tips, ideas and advice.

Steve

 

[rexamillion59]

Yes I will post tonight when I get home

 

[rexamillion59]

Very nice I am going to do a mid drive next.
But for this build I purchased a gas tank pedistol frame from eBay.
Then a 49cc kit also from eBay and a jackshaft shifter kit from sick bike parts.
I had to make a plate for front mount to make the engine fit with the jackshaft. I bought a shamano nexus 8 speed internal gear hub with roller brake.
A 500 watt geared hub motor for the front wheel and a monarch springer front end. The handle bar is a bit cluttered. On the left side its the electric throttle and clutch lever on the right side duel brake lever, gear selector and engine throttle.
It actually went together fairly easy.
I ended up moving the controller to handle bar tool bag

 

[rexamillion59]

The only problem I see with a mid drive motor and a shifter kit gas engine is the chain ring needing two freewheel.
I will be finding out in the near future.
Please share your build

 

[Frankfort MB's]

The only problem I see with a mid drive motor and a shifter kit gas engine is the chain ring needing two freewheel.
I will be finding out in the near future.
Please share your build

So do shifters not freewheel? I didn't know that
Learn something new everyday

 

[FurryOnTheInside]

I can see no obstacles to overcome other than the exhaust pipe. The mid mount electric motor could even start the engine if it has the torque. The SBP electric motor and shift kit has a freewheel on the motor (so it cannot be used as a charger for the battery) and their UHD freewheel with double row bearings can support the three chainrings. I will definitely build one next time I win the lottery!