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  TOV News > Acura Marks 15th Anniversary of Super Handling All-Wheel Drive™ > > Re: Sport hybrid -eVTEC

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Brutus
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Sport hybrid [View News Item]    (Score: 1, Normal) 01-30-2019 19:48
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This needs to trickle to everything even down to the ILX, seems like the best of both worlds, performance, economy, awd.

B.

Sasker
Profile for Sasker
Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 00:46
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I agree. The idea of electric AWD is interesting, but one problem with Acura's Sport Hybrid is that the motors stop at around 130 km/h (80 mph).

I wish they would go beyond that speed, to help with highway driving in winters. Even a "clear" winter road may have patches of ice or snow, and it is possible to drive at those speeds or higher on many highways in North America.

White98LS
Profile for White98LS
Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 11:50
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Sasker wrote:
I agree. The idea of electric AWD is interesting, but one problem with Acura's Sport Hybrid is that the motors stop at around 130 km/h (80 mph).

I wish they would go beyond that speed, to help with highway driving in winters. Even a "clear" winter road may have patches of ice or snow, and it is possible to drive at those speeds or higher on many highways in North America.


If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.

Sasker
Profile for Sasker
Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 12:43
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White98LS wrote:

If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.


Stupidity is advocating for an AWD system that shuts down after a certain speed.

gofast182
Profile for gofast182
Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 13:46
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Sasker wrote:
White98LS wrote:

If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.


Stupidity is advocating for an AWD system that shuts down after a certain speed.


Be careful casting aspersions lest they come back to you. Unless you're on a track pulling peak power and torque while accelerating up to triple digits while cornering AWD is fairly useless at high speeds (not to mention you don't have torque multiplication to manage in the gear you'd be in at that speed). So unless you're already doing 80 and need to accelerate through some ice patches (do you realize how silly that sounds?), it's more than fine for a street driven car.

None
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Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 14:10
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White98LS wrote:
Sasker wrote:
I agree. The idea of electric AWD is interesting, but one problem with Acura's Sport Hybrid is that the motors stop at around 130 km/h (80 mph).

I wish they would go beyond that speed, to help with highway driving in winters. Even a "clear" winter road may have patches of ice or snow, and it is possible to drive at those speeds or higher on many highways in North America.


If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.



Yea, was going to say the same. Stupid to be driving 80 on ice and expecting AWD to save your ass.

Sasker
Profile for Sasker
Re: Sport hybrid [View News Item]    (Score: 1, Normal) 01-31-2019 14:45
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None wrote:
White98LS wrote:
Sasker wrote:
I agree. The idea of electric AWD is interesting, but one problem with Acura's Sport Hybrid is that the motors stop at around 130 km/h (80 mph).

I wish they would go beyond that speed, to help with highway driving in winters. Even a "clear" winter road may have patches of ice or snow, and it is possible to drive at those speeds or higher on many highways in North America.


If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.



Yea, was going to say the same. Stupid to be driving 80 on ice and expecting AWD to save your ass.


To each their own. For me it is stupid to have an AWD system with that speed cutoff. Period.

TonyEX
Profile for TonyEX
Re: Sport hybrid -eVTEC [View News Item]    (Score: 1, Normal) 01-31-2019 18:03
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Sasker wrote:
None wrote:
White98LS wrote:
Sasker wrote:
I agree. The idea of electric AWD is interesting, but one problem with Acura's Sport Hybrid is that the motors stop at around 130 km/h (80 mph).

I wish they would go beyond that speed, to help with highway driving in winters. Even a "clear" winter road may have patches of ice or snow, and it is possible to drive at those speeds or higher on many highways in North America.


If you're driving over 80mph in winter with patches of ice or snow, there's some stupidity there that no AWD should have to fix.



Yea, was going to say the same. Stupid to be driving 80 on ice and expecting AWD to save your ass.


To each their own. For me it is stupid to have an AWD system with that speed cutoff. Period.



The SH-AWD systems are for MORE than driving on ice, snow and gravel. They are also for enhancing driving characteristics on dry roads.

Sure, 80mph is fast, but I did inadvertently banzai'd into mountain interstate turns at 80 a couple of times and that rear torque vectoring pretty much saved our butts and our brand new car.

The issue of electric motors running out of power/torque at the top end is very well understood, that's why iMMD is so clever: it maps two inverse torque curves together so there is torque and power throughout the performance envelope.

A rather simple fix would be to implement a two speed transmission in the TMU, or build one integrally with each electric motor. IMHO, that would allow a smaller electric motor to really extend its reach much higher. Plus it'd give you a VTEC like kick.

Hmmm... maybe we can call that eVTEC.

The Temple of eVTEC.



Nick GravesX
Profile for Nick GravesX
Re: Sport hybrid -eVTEC [View News Item]    (Score: 1, Normal) 02-01-2019 07:27
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Well, assuming an epicyclic drive on each motor (or two on one bigger motor?) you'd have a low-ratio for greater e-celleration and then a higher FD for top end assistance.

It's adding more mass and complexity, but it seems to be the way many are thinking now.


 
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