[bennelson]

Hey Guys,

I'm trying to start to think through the "Mode Selector Switch" feature of the truck.

Basically, I want to have a three-way switch on the dashboard that will set how the truck works.

1) I.C.E. Operation: The truck just runs as you would expect on the diesel engine. Heat comes from the regular engine coolant and heater core.

2) E.V. Mode: The truck runs directly on the electric motor and batteries (with the manual transmission in neutral to mechanically disconnect the engine.) Auxilary systems that normally would run on the engine would have to be electrically powered, such as electric heat and a DC/DC converter to take the place of the alternator.

3) Hybrid Mode: In this mode, the driver can use either or BOTH the engine and electric motor to drive the truck. For example, I might turn the engine off for start-and stop traffic or use both systems for increased acceleration. It would require some method for manual stop and restart of the engine.

I need to think through the details of what components need to turn on or off under each situation. For whatever reason, my brain is fried right now. Hard to brainstorm all by myself at my computer.

I attached a drawing to show what I'm thinking, but it needs a lot more filled in.

Another thing I can think of (but don't know where it fits in here) is that I need to make sure I can't accidentally have the motor spinning forward with the transmission in reverse. Maybe I need a FRD/REV switch on the dash for the motor, or rig the backup lights to flip a reversing contactor to the motor.

PS - I made the attached drawing in the Evolus Pencil Software. I'm going to play some more with the Digikey software as well.