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(Reuters)   This will end well: Nissan is introducing a "steer by wire" so you can crash while trying to reboot your car   (reuters.com) divider line 14
    More: Stupid, Cuban Missile Crisis, cold-war, Air France Flight 447, Infiniti, car companies, reboot, wires, engine control unit  
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6995 clicks; posted to Main » on 17 Oct 2012 at 4:20 PM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-10-17 04:45:37 PM  
2 votes:
I can only imagine this working like that wireless steering wheel I had on my Nintendo 64. When the battery got low or the connection dropped, you found out about it by plowing into a wall. When I have steering problems in an older vehicle, I find out about it by turning being difficult or though mechanical feedback. Even when the power completely fails, I can still use "armstrong steering" to safely get to a good place to fix it.

On that note, most new cars don't give enough steering feedback as it is. I don't understand why anyone would want zero. Do you not care what the surface you're driving on? Even if I can't see the ice or loose gravel on the road, I sure find out about it through my steering wheel.

Besides all that, what's the point? It's not like conventional power steering is any less fuel efficient than steering by wire. It's just one more thing to break, and when it does, you have no backup system.

Keep that crap out of my car.
2012-10-17 07:51:58 PM  
1 votes:
If there is a mechanical backup, as some have said (requiring a clutch to engage?), I really don't see the point of this. If the linkage is there anyway then you aren't going to be saving weight, and you can already use the electric steering motor to do minor course corrections if that's what you're going for (I think Mercedes or somebody offers automated cross-wind correction this way; it gives a little extra boost in one direction to counter a cross wind when it detects it), so what advantage does this offer? The idea that taking your steering input -> digitizer -> transmit to processor -> process -> transmit to steering motor is going to be quicker than just turning a rigid shaft doesn't seem to fly, either. I suppose it would make it easier to install an autopilot or something, otherwise it really just doesn't seem to make sense - except, perhaps, for those poor souls who want to be totally disconnected from the task at hand and want a totally numb steering feel that doesn't transmit any of the bumps, bounces, or textures to their hands. That seems to be the only real reason to mechanically disconnect the steering.
2012-10-17 06:12:41 PM  
1 votes:
I'm all for "self-driving" cars so long as it gets you slather asses out of the goddamn left lane.

/and if it drives you into a bridge abutment, all the better!
2012-10-17 05:43:47 PM  
1 votes:
The bluetooth connection will allow you to hijack -by-wire the car next to you.
ZAZ [TotalFark]
2012-10-17 05:24:07 PM  
1 votes:
The article says there will be a clutch you can engage to provide a mechanical connection while you debug the steering computer.

$ strctl engage manual
Error: Manual steering setting conflicts with currently selected steer by wire mode.
$ strctl down sbw
Error: No such subsystem sbw.
$ strctl down tbw
Turn by wire subsystem disabled.
Warning: Front wheels are currently free.
$ strctl engage manual
You have selected manual steering mode. Please read and agree to the following:
Nissan and its subsidiaries, collectively referred to as "Nissan", have
agreed to provide you with a manual steering feature. In manual steering
mode the car will not automatically change direction. It is your responsibility
to guide the car safely. You agree that you will obey all traffic laws.
You agree that you will not use this vehicle to commit any illegal or
tortious act. You agree that you will indemnify and hold harmless Nissan
for any damage resulting from your use of the car in manual steering mode.
You agree that improper use of manual steering mode may result in serious
injury or death to you, an occupant of the car, or any other person, and
such injury or death will be your sole responsibility. This car contains
substances known to the state of California to cause cancer. You acknowledge
that if involved in a collision within the state of California, such substances
may be released. You agree to indemnify and hold harmless Nissan for any
cancer or other injury you or any other person suffers as a result of release
of such chemicals. You further agree that this is a summary of the complete
terms of service of the manual steering option. The complete legal agreement
is found on the Nissan web site. You agree to be bound by that agreement as
if included in full here.

Do you agree to the above contract? (Y/N)
2012-10-17 04:53:37 PM  
1 votes:
Power steering is overrated. Unless you have a quite heavy car, manual steering can be an advantage - except for turning around in a very tight spot. Both my '68 Plymouth Valiant and my Datsun 280Z have manual steering, and honestly, I think that the sensitive feedback I get from having direct mechanical contact with the tires, and therefore the road, allows for much more precise driving, especially at high speeds. But, then, I'm an old car geek who doesn't even like automatic transmission, so I'm sure someone who views cars as nothing more than a conveyance from A-to-B would love the idea of a car with automatic...everything. Self-driving and drive-by-wire are pretty cool from a tech standpoint, but...I prefer to keep it simple.
2012-10-17 04:32:36 PM  
1 votes:
[sarcasm]
It will be nice when cars no longer give feedback through the steering wheel. One less variable to worry about processing.
[/sarcasm]
2012-10-17 04:31:21 PM  
1 votes:
"Under the new system, the driver's intentions are transmitted more quickly to the wheels because of the quick speed of electronic signals"

Because people are always complaining about how long it takes rotational input to travel from one end of a steering shaft to the other?
2012-10-17 04:27:59 PM  
1 votes:
My Acura is drive by wire. It's an 05.

Everything works great until have battery problems.
2012-10-17 04:24:17 PM  
1 votes:
Four engineers are driving down the road when the engine starts running rough. They start arguing about the cause.
The ChE says "We've got a fuel problem; we need to drain the tank and refill it".
The ME says "No, the wheels are unbalanced; we need to get a front-end alignment and a wheel balance"
The EE says "You're both wrong; the ignition controls are messed up, we need to get the timing circuit checked"
The Software Engineer says "How about we just pull over, turn it off, and restart it?"

/thanks, I'm here all week
//try the veal
2012-10-17 04:22:20 PM  
1 votes:
Don't VW's have this as well?
2012-10-17 03:05:28 PM  
1 votes:
Land Rover has been doing this since 01
vpb [TotalFark]
2012-10-17 02:53:21 PM  
1 votes:
Is there an app for that?
2012-10-17 02:40:42 PM  
1 votes:
Most apirplanes made today are "fly by wire" so this isn't new technology, but what concerns me is the statment: "Drivers can also man oeuvre cars more easily as the system cuts out what it deems as unnecessary feedback from the tires to the driver." I wonder what sort of feedback they will cut out. We all use the feedback from the road and tires to help us steer through traffic.
 
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