View Single Post
Old 04-28-2021, 10:59 AM   #68 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 3,500

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)
Thanks: 309
Thanked 2,066 Times in 1,396 Posts
Quote:
Originally Posted by Varn View Post
One of our vehicles has anti lock brakes. I hate them they increase stopping distances in bad weather. About all they do is to keep the vehicle going straight.
ABS has changed a lot since 2005. The big change was in 2012 when stability control become mandatory. I'd give a modern system a chance before writing of ABS.

Early ABS was single channel. All it did was modulate the brakes on and off much faster than a human could pump the brake pedal. However, if any wheel lost traction and locked the ABS valve cut brake pressure to all 4 wheels.

Then we got dual channel ABS. The front and rear brakes were modulated independently. This was a big upgrade - especially for vehicles like unloaded trucks and vans where the rear end is light to begin with before weight transfer under braking.

Then we got 4 channel ABS (in conjunction with stability control) Each wheel is monitored and modulated independently.

Modern ABS systems also have accelerators and gyroscopes in additional to wheel speed sensors so the computer has a lot more information to work with and much faster processing speeds.

2006 Toyota Tundra ABS Valve
Click image for larger version

Name:	2006 Tundra ABS.jpg
Views:	8
Size:	11.7 KB
ID:	30592

2012 Toyota Tundra ABS Valve
Click image for larger version

Name:	ABS-Valves-Modulator-400x260.jpg
Views:	9
Size:	114.9 KB
ID:	30593
  Reply With Quote
The Following User Says Thank You to JSH For This Useful Post:
Isaac Zachary (04-29-2021)