VDIM in NX?

6685 Views 10 Replies 5 Participants Last post by Kennedy, Aug 25, 2014

lecson

Discussion Starter · Aug 20, 2014

The Lexus Japanese website (Lexus.jp) has revealed all detailed information of NX. I found that VDIM is omitted and not listed in the safety features of NX.
However, in the preliminary specifications from the Lexus UK, VDIM is in the feature list from entry level to the most pricey grade.

Why is the difference between UK and Japanese models? If VDIM is missing in NX, then there would no integration of controls (ABS, BAS, VSC....) on the vehicle? However, VDIM seems to be an important safety feature of Lexus cars....

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mojo

· #2 · Aug 20, 2014

I do not think it has been omitted for the Japanese market, could it be called something else, or perhaps they simply don't feel the need to market the acronym?

If you were able to find ABS or BAS listed on the .jp website then its got VDIM...

Im not sure if this will help... http://www.lexusnxforum.com/forum/9...forum/1602-more-very-interesting-details.html

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Thai

· #3 · Aug 20, 2014

lecson said:
The Lexus Japanese website (Lexus.jp) has revealed all detailed information of NX. I found that VDIM is omitted and not listed in the safety features of NX.
However, in the preliminary specifications from the Lexus UK, VDIM is in the feature list from entry level to the most pricey grade.

Why is the difference between UK and Japanese models? If VDIM is missing in NX, then there would no integration of controls (ABS, BAS, VSC....) on the vehicle? However, VDIM seems to be an important safety feature of Lexus cars....

Interesting. I don't see VDIM in the official spec sheet: http://www.lexusnxforum.com/forum/5...-lexus-nx-official-spec-sheets.html#post18801

VDIM traditionally seen on two types of vehicles: sports car and certain hybrids. Regular cars b/w those extremes come with just VSC and TRAC.

Here is a nice post about VDIM that explains it further (FYI for those who wondered):

"VDIM combines TRAC, VSC, ABS w/EBD and BA (Brake Assist) and controls each of them from central computer. This means the benefits from each unit can be used to the maximum at the same time by the same computer sending out the signal.

VDIM also adjusts the steering angle if necessary (very very slightly) to correct the skid (oversteer or understeer). e.g. if you were powering out of a corner and the steering wheel is turned too far for proper traction.

Also, because it's a central computer, it can monitor each unit and thus react faster. With VSC, it kicks in only after the car starts sliding or spinning. It's less intrusive, yes but for everyday world, it can be scary (Doing a test on a snow covered road, I can get the car's tail to slide out while the car incessantly beeps and tries to get the car back into line).

With VDIM, it'll react and correct before you even know it. If you were to test the system and intentionally invoke oversteer, you'll be out of the skid before you even react to turning the wheel to the opposite side to counter the spin that you were anticipating."

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mister

· #4 · Aug 21, 2014

It sounds like a great system, but I haven't heard much about it about it before now. Now I'm just wondering if it is happening for all markets or not. It's confusing from this discussion alone.

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Thai

· #5 · Aug 21, 2014

mister said:
It sounds like a great system, but I haven't heard much about it about it before now. Now I'm just wondering if it is happening for all markets or not. It's confusing from this discussion alone.

As far as i know, it is NOT a regional thing. Within a model range, things may differ. For example, Toyota Camry (gas) does NOT have VDIM. But, Toyota Camry HYBRID has VDIM. Same for Lexus models.

What gets even more weird/interesting is that VSC comes in two flavors. There is just VSC...and then there is ENHANCED-VSC. I think that E-VSC slots in b/w VSC and VDIM. My Prius has E-VSC where if you're sliding, then the computer will tug your steering wheel in the direction to correct the slide. (I have never experienced this because...well, it's a Prius.)

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mister

· #6 · Aug 22, 2014

SO many acronyms and things :S I think this is the type of thing that I have to actually try out in order to get a grasp on what is going on. Maybe there is a YouTube video that shows some of these systems in action.

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Kennedy

· #7 · Aug 22, 2014

mister said:
SO many acronyms and things :S I think this is the type of thing that I have to actually try out in order to get a grasp on what is going on. Maybe there is a YouTube video that shows some of these systems in action.

If nothing now, which is likely the case, expect to see something eventually, they can't leave us hanging on this for too much longer.

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Thai

· #8 · Aug 22, 2014

mister said:
SO many acronyms and things :S I think this is the type of thing that I have to actually try out in order to get a grasp on what is going on. Maybe there is a YouTube video that shows some of these systems in action.

Try it on a test-drive!! That would really make the experience memorable. >

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