Can this concept work?

[antediluvian]

I want to boost my 76 Triumph TR6. Not so much to increase power, but to not lose any driving up down through the mountains (up to 10-11k elevation). To that end I would like to have this configuration, torque amp to pipe to throttle body. And keep the absolute pressure inside that pipe at/around 110 KPa. And as I go up the mountains have the motor controller keep that pressure up to a total power use of 4.3 KW. And have a minimum power use of say 500 watts as a control floor. First, can the motor operate continuously? Is there a controller that can do this? and the elephant in the room, is to have a dedicated 48VDC 100 amp marine alternator power the whole without any batteries. Third question, if this is all possible, should the alternator and the rest of it be electrically isolated from the car?

 

[wayland]

Generally the supercharger battery is dedicated to the supercharger. You can probably use a buck circuit to create the 12v for the normal car electrics from the 48v circuit. Or keep the normal TR6 alternator in addition to the 48v one.

I don't think people run the electric supercharger constantly. The point of the thing is to give a launch boost for a few seconds and then it's battery is drained. I think what you actually need is a belt driven supercharger. Or change the TR6 engine for a Rover V8.

 

[antediluvian]

I have room for both alternators but no real room for a battery except the trunk. If I was going to use the trunk, a nitrous bottle would be so much easier to implement. I understand that the current use of these, at least aftermarket, is a short burst of boost followed by a lengthy recharge period of the battery.

 

[climbing96]

New to this forum, and I am already smarter for it. I have just read and watched videos about a Honda motorcycle that is coming out (?) that uses an electric supercharger full time for boost. I have read about several cars that are using an electric supercharger to eliminate turbo lag on a turbo'd engine. I have very similar thoughts as the OP. It seems that the idea of electric superchargers for daily drivers is becoming accepted by the big manufacturers. I grew up turning wrenches and I worked in the oil field as an electronics technician for 18 years, and working in electronics has allowed me to work on everything as electronics controls everything. What excites me about electrical supercharging is that if you want to run normally aspirated for no parasitic loss running, it seems the supercharger system can just lay there idle. I would not think it would be too difficult to design a controller that can then have a boost pressure preset, and the system would maintain that pressure. Seems like tuning would be easier with a setup like this as just like atmospheric pressure being constant, the boost pressure can be constant with electronic controls over the electrical supercharger speed. For example, dial in 3 psi of boost, and the controller does it's best to maintain that through the rev range. If a 48 volt charging system can be utilized, the necessity for batteries can be greatly reduced or eliminated for the supercharger system. I smell what the OP is laying out there. I'll be keeping on eye out on this post as this is almost exactly what I am wanting;-)