For entertainment 'offroading' a Tesla X - JeepForum.com
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post #1 of 19 Old 02-04-2017, 11:08 AM Thread Starter
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For entertainment 'offroading' a Tesla X

To be fair:

The tires are very low friction (to keep the driving range up). Not much good even in the mildest of 'off road' use.

Obviously from the wheel slippage, the tuning of the drive motors is way off for this kind of use.

Properly done, electric drive at the wheels (preferrably with an ICE providing the power) has some potential if done right (consider those big mining trucks).

But have fun

http://www.thedrive.com/news/7302/te...tly-impressive


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post #2 of 19 Old 02-04-2017, 12:40 PM
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as the bar gets lower as to what IS a off road vehicle.....

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post #3 of 19 Old 02-04-2017, 12:43 PM
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Originally Posted by jay-h View Post
Properly done, electric drive at the wheels (preferrably with an ICE providing the power) has some potential if done right
Has some potential? 100% torque at 0 rpm has much more potential than any fuel driven engine.
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post #4 of 19 Old 02-04-2017, 02:07 PM
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never needed 100% torque at 0 Rpm. since we measure miles by days, not by the hour. One day perhaps. But by them it wont matter much to me.

Fiat electric Wrangler.

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post #5 of 19 Old 02-04-2017, 02:32 PM Thread Starter
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Has some potential? 100% torque at 0 rpm has much more potential than any fuel driven engine.
Great combination, diesel power, electric drive at the wheels

http://www.mining-technology.com/fea...ure1397-1.html

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post #6 of 19 Old 02-04-2017, 02:37 PM
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post #7 of 19 Old 02-04-2017, 06:50 PM
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never needed 100% torque at 0 Rpm. since we measure miles by days, not by the hour.
That's the point. Pentastar puts out 260 lb*ft of torque at 4800 rpm. Imagine crawling over obstacles with that much torque at 10 rpm. Imagine a remapped throttle pedal that gave you tractable control at those lower speeds. Then again, off roading would probably be too easy. Again, the range is currently a problem... but we're talking potential...
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post #8 of 19 Old 02-05-2017, 04:19 AM Thread Starter
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That's the point. Pentastar puts out 260 lb*ft of torque at 4800 rpm. Imagine crawling over obstacles with that much torque at 10 rpm. Imagine a remapped throttle pedal that gave you tractable control at those lower speeds. Then again, off roading would probably be too easy. Again, the range is currently a problem... but we're talking potential...
I think the biggest benefit would be the precisely controllable torque, which could be factored between wheels. Conventionally you are now controlling torque through clutch or torque converter, both of which are crude to adjust precisely. Obviously also the Tesla setup of torque metering does not work well in this video, but I'm sure with proper configuration that would be much better.

Having a fuel engine producing the electrical power could eliminate the potential range issues.

Not much danger of making off roading 'too easy'. Getting traction is just one aspect of challenging trails.

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post #9 of 19 Old 02-05-2017, 01:18 PM
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And what happens the first time you drive off into a 4 foot deep water hole?
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post #10 of 19 Old 02-05-2017, 01:30 PM
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And what happens the first time you drive off into a 4 foot deep water hole?
You can't hydrolock an electric motor. The motors and batteries are all sealed, so I guess you would ruin your interior and short out any non protected electronics, basically the same thing that would happen if you drove a Jeep with a snorkel into a 4 foot deep water hole, but you wouldn't need to change all of the fluids after you got it out because there are none.

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post #11 of 19 Old 02-05-2017, 04:04 PM Thread Starter
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You can't hydrolock an electric motor. The motors and batteries are all sealed, so I guess you would ruin your interior and short out any non protected electronics, basically the same thing that would happen if you drove a Jeep with a snorkel into a 4 foot deep water hole, but you wouldn't need to change all of the fluids after you got it out because there are none.
One particular problem (on a full electric or plug in hybrid) could be the battery pack. Because of its enormous weight (about 1300 lb for the Tesla S), the battery pack sits very low, often under the floor. Battery charge/discharge is extremely complex in those large batteries... every cell is continuously monitored for temperature and charge by the controlling computer. The computer switches cells on and off as determined by parameters. Trash this and you're in for thousands. Sealing this could possibly be done, but would be very difficult (especially since they require continuous venting).

However in a ICE/electric drive system, the battery pack can be much smalle

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post #12 of 19 Old 02-05-2017, 04:08 PM
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Elon Musk says that the Tesla can be a boat if you want, the batteries are sealed. Not even Mr. Fiat publicly tells people to submerge their Jeeps.

http://www.huffingtonpost.com/entry/...b0fbbc8beba142

Here is a Nissan Leaf. Water is not a problem for electric cars.

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post #13 of 19 Old 02-06-2017, 08:58 AM
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Hauling that last trailer load of fire wood pretty impressive for any small car.

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post #14 of 19 Old 02-06-2017, 09:23 AM
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That's the point. Pentastar puts out 260 lb*ft of torque at 4800 rpm.
facts. 250lb is at 1800. Flat curve.


By the time Fiat figures it out we will have fling jeeps and, roads we dont need roads......all the trails will be closed. Ill be dust in the ground. hows those motors in the wheels going to do in water. Fiat will never figure that out. break a motor axle, that will be a fun trail fix.
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post #15 of 19 Old 02-06-2017, 06:05 PM
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facts. 250lb is at 1800. Flat curve.

By the time Fiat figures it out we will have fling jeeps and, roads we dont need roads......all the trails will be closed. Ill be dust in the ground. hows those motors in the wheels going to do in water. Fiat will never figure that out. break a motor axle, that will be a fun trail fix.
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Yup, and what is the torque at 1000 rpm? 100? Not so good...

Maybe, but technology is going at an explosive pace. It is impossible to tell when or how driving will evolve in the coming years. We've only been driving for a little over 100 years, which is a blink in the eye of human history. I don't know if manned driving will end in my lifetime but I bet it'll be close. Either way, I bet people will still be running the trails of Moab, even if they didn't drive down themselves. I just wonder what will happen to motorcycles... it would suck if they were relegated to track only
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