Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 03-17-2022, 03:30 PM   #1 (permalink)
Master EcoModder
 
Join Date: Jun 2016
Location: KY
Posts: 1,351

IGL - '04 Saturn Ion
Team Saturn
90 day: 56.19 mpg (US)
Thanks: 63
Thanked 365 Times in 268 Posts
Wild thought related to engine management

I was thinking about engine management today, as I was planning out what to do about my Saturn. It occurred to me that if we wanted ultimate engine control, why not control each cylinder individually as part of the whole? Give each cylinder its own throttle, MAP sensor, ignition coil, and oxygen sensor, and everything could be precisely equalized. In theory, both power and economy could be maximized.

Thoughts?

__________________
My current Ecotec project...


My last Ecotec project...
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-17-2022, 03:40 PM   #2 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,674
Thanks: 7,770
Thanked 8,581 Times in 7,066 Posts
Freevalve:

Freevalve | Camless Engine Technology for Sustainable Engines
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"We're deeply sorry." -- Pfizer
  Reply With Quote
Old 03-17-2022, 06:39 PM   #3 (permalink)
Master EcoModder
 
me and my metro's Avatar
 
Join Date: Jun 2008
Location: Oregon
Posts: 556

Economy Saturn - '02 Saturn L200
Thanks: 255
Thanked 198 Times in 156 Posts
Individual pyros let pilots control mixture based on the hottest cylinder.
__________________
02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
  Reply With Quote
Old 03-17-2022, 10:24 PM   #4 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by 19bonestock88 View Post
I was thinking about engine management today, as I was planning out what to do about my Saturn. It occurred to me that if we wanted ultimate engine control, why not control each cylinder individually as part of the whole? Give each cylinder its own throttle, MAP sensor, ignition coil, and oxygen sensor, and everything could be precisely equalized. In theory, both power and economy could be maximized.

Thoughts?
For mass production its way too expensive, but then you look at racing applications and.... the throttle might be common but fuel injection and exhaust temperature is definitely monitored individually.
__________________




  Reply With Quote
Old 03-18-2022, 04:40 PM   #5 (permalink)
Master EcoModder
 
Join Date: Jun 2016
Location: KY
Posts: 1,351

IGL - '04 Saturn Ion
Team Saturn
90 day: 56.19 mpg (US)
Thanks: 63
Thanked 365 Times in 268 Posts
Oh, it’s way way too expensive for mass production. Imagine random normies complaining that a base Camry is $42K (but it’s got an oxygen sensor and pyrometer for each cylinder and gets 42mpg highway!)
__________________
My current Ecotec project...


My last Ecotec project...
  Reply With Quote
Old 03-18-2022, 07:03 PM   #6 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,562
Thanks: 0
Thanked 1,625 Times in 1,450 Posts
Look at some parallel-twin motorcycles, with individual throttle bodies and even individual OČ sensors. If you're willing to go that far, it might not be much rocket-science to apply a similar setup to your engine.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com