Traction Control
Discussion
A combination of a heavy right foot last night coming out of the petrol station and the rain meant things began to spin up in the wet. Traction light went crazy but I didn't really notice any reduction in power.............the only other cars I have had with traction control were a Focus and an MX3 and if they came on it felt like you were driving something running on one cylinder as the reduction in engine out put was VERY noticeable. The TVR just used to keep spinning and the traction control was me filling my pants and lifting off in a panic!
Might be a daft question but being as mechanical as Zippy from Rainbow (i.e. I imagine he would be rubbish with only one hand and only three fingers on that one hand!) Does traction control work differently on rear wheel cars? Or did I just not notice it?
Might be a daft question but being as mechanical as Zippy from Rainbow (i.e. I imagine he would be rubbish with only one hand and only three fingers on that one hand!) Does traction control work differently on rear wheel cars? Or did I just not notice it?
Neil1300R said:
Its got more sophisticated! Tey repeating the experience on the same bit of road in the same weather with TC off. Then come back and report the differences. - Once you've been pulled out of the hedge / wall /whatever, that is!
+1 to that. I have spun the tyres in mine (in 4th!!) and apart from wiggley hips and the light you really don't notice...Doesn't close the throttle. Will have to check Grant's book when I get home for the complete answer, but revs don't drop whilst TC is flashing, and you can feel a bit of wheel spin. I am impressed with the TC as it allows you to get the rear end out without it going to far especially in the dry.
Traction Control systems use wheel-speed sensors to gauge the speed at which the wheels are spinning. If one wheel is spinning more quickly than the others, it would be easy for you to lose control of your vehicle. As soon as the sensors pick up a difference in speed, the Traction Control system encourages the brake to lessen the speed of that wheel so that it slows down in line with the speed of the other wheels. This limits the chances of skidding or sliding off the road. Some Traction Control systems also reduce the engine power to the wheel in question to limit the chances of a skid or spin even further.
HTH
HTH
The Aston DSC seems to operate like the M Mode DSC in my M5. The standard DSC onthe M5 is a PITA and cuts power whenever it sense a wheel about to spin, so even dry take offs from traffic lights get bogged down. The M Mode allows some spin and also allows the rear to break away, then catches it if you don't ease the power yourself, much like the Aston system.
Most "stability" systems use the ABS system for wheel speed and indiviual corner braking combined with a couple of G sensors front and rear to get yaw, they also look at steering input, they only tend to pull throttle when it is really going wrong!
Edited by mikey k on Friday 19th August 17:55
Go on the pdc day and youll be amazed at how clever the car is ... i tihnk its the only car on the market where ABS Stability control adn TC all work in harmony with each other dialing in necessary amounts from each iunput to get the car going /stopping in a striaght line ...unbeleivable until youve experienced it ... you CANNOT spin the car with TC on going round a roundabout with stadning water on full power - amamzing...was chuffed to bits with the dbs before i went now i am truly amazed at waht it can do and how it handles for a biug car ......
Basher said:
Go on the pdc day and youll be amazed at how clever the car is ... i tihnk its the only car on the market where ABS Stability control adn TC all work in harmony with each other dialing in necessary amounts from each iunput to get the car going /stopping in a striaght line ...unbeleivable until youve experienced it ... you CANNOT spin the car with TC on going round a roundabout with stadning water on full power - amamzing...was chuffed to bits with the dbs before i went now i am truly amazed at waht it can do and how it handles for a biug car ......
Most modern cars have a similar system, its the yaw sensors and the individual corner braking that moves it on from the old sytems that just cut the throttle when the wheels spin.BTW you can still spin them if you lose grip
All these system do is try to prevent you doing that
ETA here is a very good link to how the Honda system works, they all use the same principles just different sofware (note the date
)http://world.honda.com/news/1997/t970702d.html
Edited by mikey k on Friday 19th August 17:53
Aston Annie said:
Traction Control systems use wheel-speed sensors to gauge the speed at which the wheels are spinning. If one wheel is spinning more quickly than the others, it would be easy for you to lose control of your vehicle. As soon as the sensors pick up a difference in speed, the Traction Control system encourages the brake to lessen the speed of that wheel so that it slows down in line with the speed of the other wheels. This limits the chances of skidding or sliding off the road. Some Traction Control systems also reduce the engine power to the wheel in question to limit the chances of a skid or spin even further.
HTH
Been reading Grant's book?HTH
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