Traction Control versus Cruise Control Question:

Quote:

---

Originally Posted by weeds

You can aquaplane with brand new tyres as well.......

I turn cruise control off in heavy rain and around dusk and dawn.

---

I use CC especially at these (dusk & dawn) times and through the night, I feel it takes away the 'off the accelerator time' just have my right foot ready to brake if skippy jumps out.

Heavy rain I agree, but then I'm slowing down anyway and watching for other idiots on the road.

Cheers

Mike

Quote:

---

Originally Posted by Bohica

In a Discovery is there any inter-relationship between traction control and cruise control? Can a traction control event cancel cruise control? I've never noticed this happen and I realize that the two functions are managed by separate ECUs but is there communication between these ECUs?
Does traction control work in high range? I know that cruise control work at 40 kph or more. Possibly faster than traction control is suitable for. I'd check the user manual but some one has taken my car.
Anybody know for sure?

---

It is possible - particularly if the suspension is in poor tune, shock absorbers weak, etc - to completely lose control by activating cruise-control during heavy rain. A friend wrote off his car (Ford Falcon) in that way and in addition, the investigating police hit him with a significant fine for 'failure to control' (ie, activating cruise).

My Freelander2 has from time to time cancelled cruise when hitting a heavy puddle - but basically the handling, electronics and good tyres means 'no problem'. It might also mean, I should not have been on 'cruise'!

As a 'rule of fumble' - probably best to assume you'll gain a precious half-second or so if you're in the wet - and not on cruise, compared to 'cruise on'. And for losing control, half-a-second equals a week-and-a-half.

It's very interesting to read everyone's opinion regarding Bohica's question.
Once again, sierrafery is the voice of reason, and has provided references.
Anyone with experience on a race track will attest that there are plenty of situations where traction control is very useful at speed - even very high speed. If you are used to tc locking a wheel as soon as it kicks in, you may not have experienced what happens at higher speeds, where traction is not necessarily completely lost and braking does not necessarily result in a lock-up, but a rather more progressive adjustment.

Quote:

---

Originally Posted by tony12

The systems are inter link and Tc will turn CC off . As tc will need to pull back engine power and possibly add braking to wheels .

---

I’ve done some testing on this in a controlled environment - if TC comes on cruise control turns off on a D2. Dont know about other makes and models. I too have heard about people’s mothers, brothers, sisters, friends who have totalled a car because of cruise control in the wet and aquaplaning and bunnies dying. Well rest easy folks - LR engineers have made it more difficult for the mass lemmings to commit suicide. If you are stupid enough to put on cruise control in torrential rain, it will turn off when you aquaplane or TC comes on. The broader question would be why the hell are you putting cruise control on in a situation where you might break traction like heavy rain? Just asking for trouble I think.