SUBSIM Radio Room Forums



SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997

Go Back   SUBSIM Radio Room Forums > General > General Topics
Forget password? Reset here

Reply
 
Thread Tools Display Modes
Old 02-22-10, 12:16 PM   #1
August
Wayfaring Stranger
 
August's Avatar
 
Join Date: Apr 2005
Location: Massachusetts
Posts: 23,221
Downloads: 0
Uploads: 0


Default

Quote:
Originally Posted by Lionclaw View Post
...and brakes with brake lines with hydraulic fluid?
I thought that Anti-lock braking systems required electronic control.
__________________


Flanked by life and the funeral pyre. Putting on a show for you to see.
August is offline   Reply With Quote
Old 02-22-10, 12:29 PM   #2
SteamWake
Rear Admiral
 
Join Date: Mar 2005
Posts: 13,224
Downloads: 5
Uploads: 0
Default

Quote:
Originally Posted by August View Post
I thought that Anti-lock braking systems required electronic control.
They do I believe the point he was trying to get to is .. what the heck was wrong with good old 'analog' braking systems... it worked so why improve it?

By improving it and adding levels of complexity adds to the chance of something going wrong.

By the way I had a Volkswagon bug with a sticky throttle cable wayyyyy back when I was a young punk. No electronics involved there
__________________
Follow the progress of Mr. Mulligan : http://www.subsim.com/radioroom/showthread.php?t=147648
SteamWake is offline   Reply With Quote
Old 02-22-10, 01:07 PM   #3
AVGWarhawk
Lucky Jack
 
AVGWarhawk's Avatar
 
Join Date: Jun 2005
Location: In a 1954 Buick.
Posts: 28,286
Downloads: 90
Uploads: 0


Default

Quote:
Originally Posted by SteamWake View Post
They do I believe the point he was trying to get to is .. what the heck was wrong with good old 'analog' braking systems... it worked so why improve it?

By improving it and adding levels of complexity adds to the chance of something going wrong.

By the way I had a Volkswagon bug with a sticky throttle cable wayyyyy back when I was a young punk. No electronics involved there
There are a couple of reasons for electronic braking systems. These systems react much quicker that the human can. ie, wheels lock up the system will detect this much more quickly than the human can. Plus, most people lay into the brakes thus locking the wheels. It has been deteremined that the stopping distance is greatly reduced if the antilock brake system does the brake pumping for the driver instead of the driver pumping the brake and or not pumping at all to prevent lock up. Also, rear brakes always have a habit of locking as weight is transfered to the front under braking situations. Locked rear wheels can lead to a spin out. As a kid I used to force that spin out but that is a different story. So, the possiblity of spin out due to locked rear wheels is reduced. To further this great idea the engineers also discovered that these systems can help prevent wheel spin! Once the sensor detects the wheel spinning like mad it sends a signal to reduce fuel flow, retarding the engine timing thus reducing power to the wheels preventing spin. Normally this gets folks out of trouble while driving. I know it helps my wife in her truck. These systems go even further in helping prevent roll over by apply the brakes when roll over/spin out situation is presenting itself. I have experienced this with the truck as well. The rear tire will spin in a hard corner, usually in rain, the systems activates slows the truck for a spit second and the tire is planeted to the ground. Overall, I'm very impressed with the performance of this technology.
__________________
“You're painfully alive in a drugged and dying culture.”
― Richard Yates, Revolutionary Road
AVGWarhawk is offline   Reply With Quote
Old 02-22-10, 12:33 PM   #4
Lionclaw
Ace of the Deep
 
Join Date: Dec 2003
Posts: 1,006
Downloads: 5
Uploads: 0
Default

Quote:
Originally Posted by August View Post
I thought that Anti-lock braking systems required electronic control.
Yes of course.

Traction control, as well.
Lionclaw is offline   Reply With Quote
Old 02-22-10, 12:56 PM   #5
AVGWarhawk
Lucky Jack
 
AVGWarhawk's Avatar
 
Join Date: Jun 2005
Location: In a 1954 Buick.
Posts: 28,286
Downloads: 90
Uploads: 0


Default

Cable-less throttles have been around a while. My 06 VW Passat is a fly-by-wire throttle. So are the Toyotas. My VW also has electromagnetic steering. No powersteering pump or fluid.

The Prius has noted to have poor braking under rough road conditions and a hesitation to brake under certain conditions. Not good at stop signs! This braking is handled electronically via wheel sensors that detect if the wheel has stopped rotating. This same sensor also detects wheel slipage. Yes, a software adjustment can remedy the problem. Unfortunate Toyota waited so long on this issue like they did with the sudden accelerations problem.

Also, tranmissions are handled electronically for shift points. These two can be adjusted via computer software.
__________________
“You're painfully alive in a drugged and dying culture.”
― Richard Yates, Revolutionary Road
AVGWarhawk is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:38 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 1995- 2025 Subsim®
"Subsim" is a registered trademark, all rights reserved.