Anti lock brakes.

westwind77 said:
I hate to disagree with you here but I think I have to. This might be an extreme instance, but it might help get the point I was trying to make across. Going back to my ice situation, even if all the 4 wheel were spinning at the exact same rate (very unlikely, but possible), as soon as the rear end would start to slide out (even before the driver could realize) the VSC system would engage. Wheel spin is NOT required for the VSC system to engage, it is more concerned with the lateral movement of the 4R. You and I both know that usually when things start to slide there is a lose of friction which will cause wheel spin, but, for that 1 in a million situation where it does not happen the system will still kick in. Wheel spin is TRAC, the spin of the 4R around the center axis of the vehicle is VSC.

Usually I would not disagree with you, I know you know your stuff, but I think here we might just have to agree to disagree :cheers:
Click to expand...

Ok, I will stick to your example: In your one in a million scenario, none of the wheels are spinning on ice as you are just sliding. VSA kicks in. What's it gonna do? How is it going to prevent anything? It can's steer, it can't accelerate, no wheels are rotating and you are sliding.
 
1engineer said:
Ok, I will stick to your example: In your one in a million scenario, none of the wheels are spinning on ice as you are just sliding. VSA kicks in. What's it gonna do? How is it going to prevent anything? It can's steer, it can't accelerate, no wheels are rotating and you are sliding.
Click to expand...

I would be reaching for the OSHT button...
 
Last edited:
1engineer said:
Ok, I will stick to your example: In your one in a million scenario, none of the wheels are spinning on ice as you are just sliding. VSA kicks in. What's it gonna do? How is it going to prevent anything? It can's steer, it can't accelerate, no wheels are rotating and you are sliding.
Click to expand...

I never said none of the wheel were spinning, com'on, how can you have a slide if you were not moving in the 1st place, you're an engineer, you know better! My point is plain and simple, if all 4 wheel where spinning perfectly at 40mph and you physically (by how ever means you wish) were to rotate the 4R (the steering wheel never moving) the VSC system would engage. That long post you like even stated that it has to do with lateral motion, no where did it mention anything with tire spin or the TRAC system. I have activated my VSC on snow and ice dozens of times playing around, and once on black ice that probably saved me from an accident. The system WORKS...and it does not give a :toilet: about tire spin.
 
Last edited:
westwind77 said:
I never said none of the wheel were spinning, com'on, how can you have a slide if you were not moving in the 1st place, you're an engineer, you know better! My point is plain and simple, if all 4 wheel where spinning perfectly at 40mph and you physically (by how ever means you wish) were to rotate the 4R (the steering wheel never moving) the VSC system would engage. That long post you like even stated that it has to do with lateral motion, no where did it mention anything with tire spin or the TRAC system. I have activated my VSC on snow and ice dozens of times playing around, and once on black ice that probably saved me from an accident. The system WORKS...and it does not give a :toilet: about tire spin.
Click to expand...

Hold on, this is going to get brutal. :snacker:
 
It is funny that this just popped up today on the forums...it just happened to me today twice while going down steep paved grade. FYI, it happens if you are in Neutral also.
 
Neutral?:snacker:

I've had the vsc beep several times on dry downhill twisties and once on a tight banked offramp. All occurances seemed premature to me.
 
Yes... neutral. I was drifting down the back side of Mt Pisgah trying to reduce all fuel consumption because we were really low on gas. Dry pavement. Going down hill around a turn. I was going a little fast so as to keep momentum and I didn't want any engine braking to happen. Of course, somebody will probably say that I would use the same amount of fuel if I was in Drive. I dunno. Just mentally, it seems better to not have the engine turning while trying to save fuel when going down hill (safety aside). I used to do that a lot back in the day when I had a manual trans. Push in the clutch, pop it into neutral, and put it back in gear when needed.
 
Well I'm back and have taken it to the toyota dealer for it's checkup. I brought a printout with me so if the tech argued with me I would show him the copy. Surprisingly, he didn't argue and wrote it on it's service log. He said there is a way to calibrate it, (which we already know)
This problem happened twice during my trip, both times on forest service roads which aren't known for being up to par.

We will see this afternoon what happens. I'm also getting a dealership wash so it will be a little bit cleaner.
 
Snooperstyle said:
Yes... neutral. I was drifting down the back side of Mt Pisgah trying to reduce all fuel consumption because we were really low on gas. Dry pavement. Going down hill around a turn. I was going a little fast so as to keep momentum and I didn't want any engine braking to happen. Of course, somebody will probably say that I would use the same amount of fuel if I was in Drive. I dunno. Just mentally, it seems better to not have the engine turning while trying to save fuel when going down hill (safety aside). I used to do that a lot back in the day when I had a manual trans. Push in the clutch, pop it into neutral, and put it back in gear when needed.
Click to expand...

You actually consume more fuel in neutral. Modern engines shut off the fuel while coasting in gear: Coasting in Neutral or Gear to Save Gas - Coasting and Fuel Economy - Popular Mechanics
 
You must log in or register to reply here.

Members online

No members online now.
Total: 720 (members: 0, guests: 720)

Forum statistics

Threads
278,315
Messages
3,554,104
Members
248,016
Latest member
Advally Service

Share this page

Trending content

Back
Top