Hill descent control v manual engine braking

Submitted: Saturday, Jan 12, 2013 at 16:07
ThreadID: 99951 Views:3422 Replies:6 FollowUps:3
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I've looked at previous threads on this, and the technical process ie automatic braking.
Thee are a few tracks I go down in manual 1 st low which I wouldn't want to do without that level of control. My q. is, can an auto with Hill descent control be as good? Experience? I'm looking at the Mazda bt50, but might choose to wait a year to see what the 2014 upgrades for hilux ands navara bring!
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Reply By: Kris and Kev - Saturday, Jan 12, 2013 at 16:57

Saturday, Jan 12, 2013 at 16:57
I have used the downhill assist (DAC) on our cruiser (auto 200 series) a few times and find it absolutely brilliant. The following photos were on a wet steep downhill track in Tasmania and the track was a mixture of sandy loam and large rocks, with a few curves. Again the DAC worked perfectly. Kevin



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Follow Up By: Member - MUZBRY(Vic) - Saturday, Jan 12, 2013 at 17:45

Saturday, Jan 12, 2013 at 17:45
Gday Kev
That's a nice hill, i'll follow you down any time...

Muzbry
Great place to be Mt Blue Rag 27/12/2012

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Reply By: Notso - Saturday, Jan 12, 2013 at 17:18

Saturday, Jan 12, 2013 at 17:18
Unless you are an absolute professional, let the smarts do it.

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Reply By: Axle - Saturday, Jan 12, 2013 at 17:39

Saturday, Jan 12, 2013 at 17:39
G/Day Nigel, I reckon it depends whether its dry or wet decent, ...If its steep enough and wet enough and the vehicle weight takes over, No! Technical Gismo or gearing of any description will help, only the bloke above can help where you land, if he's watching, lol . Dry and steep , providing its not to loose then some tech things do assist.


Cheers Axle.
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Reply By: mikehzz - Saturday, Jan 12, 2013 at 18:19

Saturday, Jan 12, 2013 at 18:19
I've got 2 cars, one with low range and no gizmos and the other with no low range and every gizmo they have ever invented. Both are autos. The low range car is excellent at idling in 1st low down the steepest of inclines with no need to use the brake. The other has the Hill Descent control that feels like an army of little robots grabbing frantically at every wheel individually attempting to limit the cars speed to around 7 kph down the slope while also attempting to keep the car travelling straight by not allowing skids. The brakes can get very hot on a long slope. I prefer the low range car in that situation but they both have gone to the same destinations with a minimum of fuss.
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Reply By: Nomadic Navara - Saturday, Jan 12, 2013 at 22:54

Saturday, Jan 12, 2013 at 22:54
I don't know about other vehicles. The Disco II hill descent control would only work in low/1st gear, or to put it another way you could only use bot situations if you wanted HDC.
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Reply By: garrycol - Saturday, Jan 12, 2013 at 23:13

Saturday, Jan 12, 2013 at 23:13
My RRS is an auto and also has HDC. However the auto locks up the torque converter when in low range going down hill. I have found selecting 1st or 2nd going downhill is more comfortable as HDC (variable speed) gets a bit noisey, rattly and jerky. However on very steep, slippery hills I have both on - generally the gearbox hold the car and HDC does not get activated.

Garry
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Follow Up By: DiscoTourer - Sunday, Jan 13, 2013 at 00:28

Sunday, Jan 13, 2013 at 00:28
Good thing about LR HDC is that you can also give it a bit of throttle when needed, which automatically deactivates HDC for those moments. I do find that first low in rock crawl usually does not need HDC, but its only a flick away. Using cruise to slow it further is fantastic.
Brett....
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Follow Up By: mikehzz - Sunday, Jan 13, 2013 at 01:29

Sunday, Jan 13, 2013 at 01:29
You can also adjust it higher/lower using the +/- on the cruise control.
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