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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re:
John,
What do you mean by "occasional tap of the brakes" to keep under the limit? I thought doing so will disengage the cruise control all together and you'd have to press the resume button again.
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17/Aug/2011, 7:13 pm
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Johngqld
X-TRAIL ENTHUSIAST
Date Registered: 02-2011
Location: Caboolture, QLD
TOTAL POSTS: 297
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Re: Cruise Control Issues
Hi Jalal,
Yes , that is correct, but what I probably didn't make all that clear, this was on some fairly steep downhill grades. There isn't a single vehicle I know of except for the Mercedes S Class that activates it's own brakes to maintain speed on a reasonable decent under cruise control. In fact the Xtrail's cruise control works far better than my Falcon use to, also better than the Commodore ute and the Rodeo which we have at work.
Did your overspeed occur on the crest of a hill or the ride down the otherside?
Also, do you know if it is a separate module?
Regards
John
--- X-1834 (c)
2010 Series 3 CVT Diamond Black. Tow pak, Nissan Nudge Bar, Bonnet and headlight Protectors, Fog Lamps, Radiator Protection, L/H Cargo Drawer,Rear Spoiler, Koason DVD/GPS, Pwr Window Delay.
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17/Aug/2011, 8:11 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re:
The over-speed happened at the run down the hill. I kept watching the speed and it just kept rising as the hill got steeper, so I had to disengage the cruise by pressing on the brake pedal.
Not sure if it is a separate module or not.
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17/Aug/2011, 8:25 pm
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BarneyB
X-TRAIL ENTHUSIAST
Date Registered: 11-2008
Location: Blakeview, Adelaide SA
TOTAL POSTS: 183
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Re:
During my recent 7500k 3 week trip I used the cruise control quite a bit, generally very good on level or climbing grades but was over running downhill. I found that disengaging cruise at the crest gave much better results except on the steepest grades when engine or CVT braking was required. Given these results I believe there is a fault with the programming of the cruise control part of the ECU.
--- Regards,
Barney X1047 (c)
2008 ST31, CVT, Flint, Towbar, Cargo mat, Headlight protectors, Dashmat, LED kick steps. Bonnet protector
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17/Aug/2011, 9:07 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re:
Well, that is obviously VERY different to the after-market cruise control I had in my T30 which would maintain the speed at the same section of the road. The T31 didn't feel like it was engine braking at all, it was just gliding down that hill and picking-up speed. I reckon I would have gotten to 130kms/hour (from the set 110kms/hour) at the bottom of that hill.
Maybe it's normal for the T31 cruise behavior, but I am not used to it based on the way it used to work in the T30. This means am gonna have to disengage the T31 cruise at every steep downhill run.
At least it is working perfectly uphill, which wasn't that perfect in the T30 in terms of gear hunting.
Can't get everything
Last edited by jalalski, 17/Aug/2011, 9:31 pm
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17/Aug/2011, 9:30 pm
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jalalski
Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re:
I know the T31 cruise is NOT increasing the speed of the car, but it is doing nothing to try and maintain the set speed downhill.
Last edited by jalalski, 17/Aug/2011, 9:42 pm
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17/Aug/2011, 9:41 pm
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