Go Back   EcoModder Forum > EcoModding > Instrumentation
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-22-2023, 08:20 AM   #1 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,662

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,215
Thanked 704 Times in 445 Posts
Distance sensor for drafting

Thinking about a distance sensor to make drafting a bit safer.
Three types, depending on functionality:
  1. Only displays distance to the vehicle you are following,
  2. Reads your speed and also displays how many seconds behind the vehicle you are,
  3. Interacts with your cruise control to keep either the distance or the time constant (with a limit on max speed).
Option 2 would be helpful for me, as Poland recently adopted a new 3-second minimum following time, to combat tail-gating.

Just tossing this idea up for discussion about available and DIY sensors.

__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-22-2023, 01:45 PM   #2 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 24,807
Thanks: 7,024
Thanked 7,904 Times in 6,468 Posts
4. Buy a new car with that feature.

4a. Raid such a car for the sensors, and homebrew a software solution.
__________________
.
.

Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

Back in my day there was so much toilet paper and eggs that we would throw them at the houses of our enemies

____________________
  Reply With Quote
The Following 3 Users Say Thank You to freebeard For This Useful Post:
Cd (01-24-2023), redpoint5 (01-24-2023), wdb (01-25-2023)
Old 01-23-2023, 09:56 AM   #3 (permalink)
Focused on MPG
 
Join Date: Apr 2009
Location: Uphill from the river!
Posts: 404

SPARKY - '13 FORD C-MAX ENERGI SEL
90 day: 44.68 mpg (US)

Marinator - '06 Mercury Mariner Premier
90 day: 21.73 mpg (US)

MAVERICK - '23 FORD MAVERICK XL
Thanks: 101
Thanked 117 Times in 93 Posts
Look for vehicles that come with adaptive cruise control, if your vehicle has the option on a higher trim level, you might be able to find a totalled one and get all the parts to install on yours, then enable it using special programming software like Forscan or others.
__________________




Staying Focus'd on MPG
  Reply With Quote
The Following User Says Thank You to ECO-AKJ For This Useful Post:
Cd (01-24-2023)
Old 01-24-2023, 02:30 PM   #4 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,450
Thanks: 2,781
Thanked 1,024 Times in 617 Posts
What range are blind spot monitors good at ?
I have seen several aftermarket sensors for cheap.
It seems that the alert signal could be used to signal the braking system as well with modification.

But what you are thinking of is a system that doesn't just apply brakes.
The adaptive cruise control modification seems like a good idea to start with.

This "long range" IR detector is only good up to 18 feet.

https://acroname.com/store/long-rang...16-gp2y0a710yk

Also, this could be modified :
https://youtu.be/qHYPG6x6Yqo

Last edited by Cd; 01-24-2023 at 02:45 PM..
  Reply With Quote
Old 01-24-2023, 02:49 PM   #5 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 11,071

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 25.39 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 3,775
Thanked 4,095 Times in 3,106 Posts
Seems like if 3 seconds is safe for humans, 2 seconds should be sufficient for a machine.

This question reminds me of discussions on the Chevy Bolt (EV) forum of how to add a gas generator to extend range. I tell them you buy a plug-in hybrid which comes with a purpose-built range extending generator.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following User Says Thank You to redpoint5 For This Useful Post:
Cd (01-24-2023)
Old 01-24-2023, 03:12 PM   #6 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,450
Thanks: 2,781
Thanked 1,024 Times in 617 Posts
Lol - or an excercise bike for the kids in back.
Trickle charge it, kids !
  Reply With Quote
Old 01-24-2023, 04:06 PM   #7 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,662

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,215
Thanked 704 Times in 445 Posts
Thank you all forthe feedback

Indeed I had in mind an aftermarket sensor (radar on a chip? I read in PopSci decades ago that those will be common soon) and how to adapt it for safe and/or legal distance drafting.

A new, advanced car is not an option for me. Not to mention that their distance sensors must be soooo integrated into other electronics and features that it would be impossible to hack to our preferences.

In general I do not expect to make and use such a sensor, only wanted to open discussion in case it may inspire someone. Unless such a sensor would be exceptionally easy to concoct, then I might...
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Old 01-24-2023, 05:41 PM   #8 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 24,807
Thanks: 7,024
Thanked 7,904 Times in 6,468 Posts
This takes you way down the wrong rabbit hole, but maybe you can get the idea:

www.tomshardware.com/how-to/raspberry-pi-facial-recognition

But if it can recognize faces it has to separate them from the surroundings, and if t can discriminate friends from random strangers it should be able to discern relative velocities.
__________________
.
.

Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

Back in my day there was so much toilet paper and eggs that we would throw them at the houses of our enemies

____________________
  Reply With Quote
The Following 2 Users Say Thank You to freebeard For This Useful Post:
Cd (01-24-2023), Piwoslaw (01-25-2023)
Old 01-25-2023, 05:11 AM   #9 (permalink)
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,662

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,215
Thanked 704 Times in 445 Posts
Might not be a completely wrong rabbit hole...
If it could recognise license plates, then from the plate's apparent width you could calculate the distance.
Also, knowing your road speed it could calculate that license plate's speed relative to you, which would allow much smoother and safer control of your car.
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
Old 01-25-2023, 01:35 PM   #10 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 11,071

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 25.39 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 3,775
Thanked 4,095 Times in 3,106 Posts
I figured manufacturers were using radar for distance calcs, not vision? I'd certainly be more inclined to use radar since that's simpler.

__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com