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  TOV News > All-New 2014 Acura MDX Debuts at the New York International Auto Show > > Re: SHAWD

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MasterOfDaDomain
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SHAWD [View News Item]    (Score: 1, Normal) 03-29-2013 16:20
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The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.

auto_enthu
Profile for auto_enthu
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-29-2013 16:35
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MasterOfDaDomain wrote:
The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.




I think this is a good improvement.

Until now, SHAWD needs the driver to give some power during cornering in order for the system to direct that power/torque to outer rear wheel, to induce a stable/flat cornering.
The same affect wont be induced (to by knowledge) if the driver has his foot off of the gas pedel. That's a draw-back.

In the new system, if braking the inner wheels happens irrespective of whether the driver's foot is on the gas pedal or not, it would greatly enhance driving feel to 'normal' driver who would not necessarily acccelerate around the corners.



Colin
Profile for Colin
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-29-2013 16:39
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MasterOfDaDomain wrote:
The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.


This is called cooperative VSA and has been on MDX for a while.

auto_enthu
Profile for auto_enthu
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-29-2013 23:17
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Colin wrote:
MasterOfDaDomain wrote:
The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.


This is called cooperative VSA and has been on MDX for a while.




No, this is not existing currently.
It is new to 2014 MDX.

Acura calls it Agile Handling Assist technology, as Jim Keller explained in his interview with Jeff.


Hondatalover
Profile for Hondatalover
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-29-2013 23:41
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The previous system worked in the same way, but only when the vehicle was in trouble. The new system is indeed VSA, but with a more advanced software working full-time, along side and in conjunction with the rest of the computer/ systems on bored (Yaw, Accel, G's, Steering sensor ect..). Acura just gave the more advanced VSA system two names.

At least that's my understanding.

It all actually makes alot of sense to me.
While braking it would act normal.

While braking around a curve, it would apply negative 'torque'(just friction in this case) to the inside wheels using the brakes, while the SH-AWD system transfers what power is still being put down to the outside rear wheel. In other words, SH-AWD would focus on the outside rear wheel (disengaging the inside wheel shafts and applying power to the outside ones) to not fight the slowing-down inside wheel.

While accelerating through a corner, it works like above, but more aggressive.

Result is a quicker, more stable turn-in time and a controlled over steer effect at all speeds. In lower speeds, turning radius's maybe slightly tighter and effortless. (Hope that doesn't translate into numb steering feel).


The above could be wrong, but thats what and how I think the new VSA and AHA tech works together.

Colin
Profile for Colin
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-30-2013 06:35
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auto_enthu wrote:
Colin wrote:
MasterOfDaDomain wrote:
The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.


This is called cooperative VSA and has been on MDX for a while.




No, this is not existing currently.
It is new to 2014 MDX.

Acura calls it Agile Handling Assist technology, as Jim Keller explained in his interview with Jeff.



VSA and SH-AWD do work together currently. However, I will concede that it's possible that the braking component is new, although I could have sworn that it was mentioned in some training once.

FYI, from the section on SH-AWD for 2013:
"The SH-AWD® system works in cooperation with the MDX's Vehicle Stability Assist™ (VSA®) system to optimize torque distribution for superior handling and traction utilization.
As you can see, there isn't any mention of braking in this description although 'optimizing' might infer this (how else could VSA intervene?). However, they've renamed tech before ie. Active Noise Cancellation became Active Sound Control. Maybe Jeff knows because I'm curious now. ;)

Mikeydred
Profile for Mikeydred
Re: SHAWD [View News Item]    (Score: 1, Normal) 03-30-2013 10:16
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Colin wrote:
auto_enthu wrote:
Colin wrote:
MasterOfDaDomain wrote:
The video interviewed mentioned that SHAWD now also incorporates VSA to brake the inside wheel during cornering, so that torque vectoring occurs when you slow down or speed up through the corners.

BMW etc. has had this for a while, but just not often talked about.

Overall the car seems like a winner to me with the enhancement in handling, efficiency, and comfort.


This is called cooperative VSA and has been on MDX for a while.




No, this is not existing currently.
It is new to 2014 MDX.

Acura calls it Agile Handling Assist technology, as Jim Keller explained in his interview with Jeff.



VSA and SH-AWD do work together currently. However, I will concede that it's possible that the braking component is new, although I could have sworn that it was mentioned in some training once.

FYI, from the section on SH-AWD for 2013:
"The SH-AWD® system works in cooperation with the MDX's Vehicle Stability Assist™ (VSA®) system to optimize torque distribution for superior handling and traction utilization.
As you can see, there isn't any mention of braking in this description although 'optimizing' might infer this (how else could VSA intervene?). However, they've renamed tech before ie. Active Noise Cancellation became Active Sound Control. Maybe Jeff knows because I'm curious now. ;)


Agile assist is suppose to be new tech introduced on the RLX, how it works not sure. VSA you are correct has always been linked to SHAWD on all applications


 
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