Electronic Stability Control - Good or Bad (or Ugly???)
Electronic Stability Control - Good or Bad (or Ugly???)
(OP)
In another post ESC came up and I am wondering how much it is affecting the the roll stiffness, if any? I assume none. I think the control is affected by the the self centering feel you gat from the steering column. If there is steering assist, then at low speeds the steering is loose, and at high speeds the steering is tight, without have to adjust camber, castor kingpin inclination etc.
What are your experiences on ESC and its advantages and disadvantages?
What are your experiences on ESC and its advantages and disadvantages?





RE: Electronic Stability Control - Good or Bad (or Ugly???)
The advantage is that it linearises the handling. The disadvantage is that it doesn't linearise the laws of physics.
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Electronic Stability Control - Good or Bad (or Ugly???)
ESC is nice because it can reduce vehicle speed automatically or change the vehicle trajectory to mitigate a rollover, and can induce yaw moments to mitigate oversteer or (sort of) mitigate understeer situations.
RE: Electronic Stability Control - Good or Bad (or Ugly???)
RE: Electronic Stability Control - Good or Bad (or Ugly???)
I was wondering if the systems they have in place on many high end production vehicles actually help or hinder in terms of performance versus safety. To me, I would like to break traction slightly if the tires are warm and rely on the shearing action of the tires to provide better overall moment delivered, although maybe not as efficient.
One of the systems I am refering to are Stabilitrak by GM. I am under the assumption that this also limits the amount of torque the drive wheels see as to mitigate not only rollover as with a turning manuever, but also breaking traction when taking off from a dead stop and going straight, i.e. drag racing. I want all the power to go to the wheels when the foot pedal is fully depressed. I have the feeling that it is limited by these systems in my vehicle, but this is also the first time I have had AWD. Regardles my assumptions are purely subjective and I do not have any data to back them up.
THanks
RE: Electronic Stability Control - Good or Bad (or Ugly???)
The hierarchy is, roughly
ABS
ABS+throttle+spark control=TC
TC+lattac (or analogue) or roll angle?+SWA=ESP (antirollover)
ESP+yawvelocity (or analogue)=ESC (goes where you point it)
analogues are synthetic signals which estimate what the sensor would have given (sort of). For instance you don't really need to measure vx, lattac, yawv and SWA, most of the time as they are strongly related
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.