disable tc
#12
Re: disable tc
Hmm.. I'm really not sure if that would help or not. I hope I don't have the opportunity to find out this winter, but if so I will definitely give it a try.
Last edited by rmorrow; 10-23-2008 at 06:04 AM. Reason: inserted quote
#13
Re: disable tc
Since FWD and F/AWD vehicles are so much more prone to loss of directional control in this circumstance the dethrottling will be much quicker, and prolonged/persistent in those vs RWD or R/AWD.
"Would it work to gently press on the brake to hold the spinning tire to let the one with traction turn?"
If we were discussing RWD or R/AWD this would be, Mostly, how TC would work. But were TC to be allowed to differentially brake a front wheel could be desasterous, enough torque stear to yank the stearing wheel from the driver's grip.
The result being that TC does exactly as you suggest, lightly brake both front wheels even if only one is slipping.
#14
Re: disable tc
So, the traction control/stability control generally have been a big plus to me, as they make it really easy to navigate on otherwise difficult surfaces. However I have had one incident occur last winter where I sorely wished I could turn it off. I got one wheel stuck in deep snow, and could not for the life of me drive it out. I had to enlsit about four people to push, and there was no way to get the car to help. The wheels simply refused to spin, regardless of how lightly or heavily I stepped on the accelerator. So, I will chime in with those that wish that it could be turned off in the exceptional circumstances where that would be useful.
#15
Re: disable tc
The TC control procedure is to first apply braking at the wheel or wheels presumed to be slipping and then if the condition persists the "engine" is dethrottled.
Since FWD and F/AWD vehicles are so much more prone to loss of directional control in this circumstance the dethrottling will be much quicker, and prolonged/persistent in those vs RWD or R/AWD.
"Would it work to gently press on the brake to hold the spinning tire to let the one with traction turn?"
If we were discussing RWD or R/AWD this would be, Mostly, how TC would work. But were TC to be allowed to differentially brake a front wheel could be disastrous, enough torque steer to yank the steering wheel from the driver's grip.
The result being that TC does exactly as you suggest, lightly brake both front wheels even if only one is slipping.
Since FWD and F/AWD vehicles are so much more prone to loss of directional control in this circumstance the dethrottling will be much quicker, and prolonged/persistent in those vs RWD or R/AWD.
"Would it work to gently press on the brake to hold the spinning tire to let the one with traction turn?"
If we were discussing RWD or R/AWD this would be, Mostly, how TC would work. But were TC to be allowed to differentially brake a front wheel could be disastrous, enough torque steer to yank the steering wheel from the driver's grip.
The result being that TC does exactly as you suggest, lightly brake both front wheels even if only one is slipping.
As I said, my only TC in the past has been 'switch it into 4 high and go', so I need to learn about my options to keep moving this coming winter
#16
Re: disable tc
No question about that! I think the stability control / ABS is a huge safety feature. I'm talking about only the circumstances where turning it off is the only way to get you unstuck. I'll have to locate that fuse now, so I don't have to hunt if/when I need it. Thanks.
#17
Re: disable tc
Most cars will disable all of the ABS pumpmotor "features", excepting ABS itself, if there is a CEL. You can "force" that by disconnecting the MAF/IAT while the engine idles. The engine will quit, reconnect the MAF/IAT and restart the engine and drive away. You now have a CEL and no TC, etc. The CEL will automatically clear, re-enbling the extra "features", within a few drive cycles.
#19
Re: disable tc
There are several hills in my town where the top of the hill there is a light. Without snow tires I cannot make it up the hill without turnning OFF my TC (called DSC on the Mini). With it on, eventually I lose all forward momentum because the tc kicks in and stops my spinning tires. With it OFF, the tires spin ever so slightly but I get some traction and I'm able to climb the hill.
With snow tires on, I have enough traction that TC can remain on without any worries of my forward progress being stopped.
With snow tires on, I have enough traction that TC can remain on without any worries of my forward progress being stopped.
#20
Re: disable tc
MAF....Mass Air-flow sensor.
IAT....Intake Air temperture.
Both of the above mounted in the engine intake ductwork downstream of the air intake filter.
CEL.... Check Engine Light.
IAT....Intake Air temperture.
Both of the above mounted in the engine intake ductwork downstream of the air intake filter.
CEL.... Check Engine Light.