Honda "Drive by Wire" question... what if the power goes out?

One of the times the split brake pedal is quite handy.

Pete C.

Reply to
Pete C.
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I think this is pretty much true... Our survival craft in the North Sea had diesel engines in the early days. 'In theory' they would start without batteries, no ignition to degrade, etc.

I see no real need for the system described here as drive by wire. It would seem to add a layer of complexity, and therefore potential failure, without offering any obvious advantage.

Reply to
<HLS

"mst" wrote

programmers.

Another short-sighted gent.

Reply to
Elle

wrote

demonstrates

why

words

for

should

past...ideas

risk.

money

for it.

When someone posts a decent citation of whatever Honda is proposing be flown-by-wire, then comment will be worthwhile.

To categorically reject change because the "current system is good enough" is foolishness and demonstrates obliviousness to the many points in automotive history when of course the old way was "good enough," but the new way yielded some advantage, so it predominated.

Reply to
Elle

The F-16 - Proof that even a brick will fly if you can cram a big enough engine into it...

Or more accurately phrased, to allow the computer to *ATTEMPT* to compensate for what it *PERCEIVES* as operator inability.

When I turn the steering wheel, the wheels better move correspondingly

*EVERY* time. Not "just when the engine is on", not "When there's a charged battery installed", not "When the computer thinks that what I'm doing is OK", but *EVERY* *SINGLE* *TIME* *NO* *MATTER* *WHAT*. While I'm behind the wheel, I will accept *ABSOLUTELY NOTHING* less than *TOTAL*, godlike control of that vehicle, subject to *NO* influences outside of my own decisions and actions.

(By way of illustration, a few years ago in europe, a "fly by wire" plane decided it knew more than the pilots - Pilots said "We gotta hammer on the power and crank the bejeezus out of the controls so we can lift, or we're gonna crash!". Fly-by-wire system said "Sorry, you can't do that", and proceeded to "fix their mistakes" by throttling down and not permitting them to crank the control surfaces to the needed degree, which caused the plane to crash and burn. After something like that, I can't see *ANYBODY* with a functioning brain-cell wanting anything to do with getting into a machine that might decide at any time that what they're trying to do is "off limits".)

Reply to
Don Bruder

"Don Bruder" wrote

Just do me a

Tell ya what, you give me a good citation on whatever Honda is proposing be flown-by-wire, and I'll give you meaningful commentary.

So far, I think people haven't any clue as to what's under consideration here.

Reply to
Elle

Indeed, one of the reasons I demand a manual transmission.

You're partly confusing two different things, the fly-by-wire i.e. no mechanical link, and an automated control system. Not really the same thing although the fly-by-wire makes implementing the automated control easier. If it's a simple electronic replacement for a mechanical link (with suitable redundancy) it's ok with me. Automated control trying to second guess my decisions based on far less sensory input than I have, is not ok with me.

The hydraulic steering on a lot of tractors and construction equipment that was noted by another poster is a good example of basic fly-by-wire or in this case fly-by-oil technology. It makes no attempt to second guess the operators decisions and simply replaces what could be a very complex mechanical linkage with a couple of nice flexible hoses.

The hydraulic brakes in cars is another even earlier example. Brake-by-oil basically, and we still require the mechanical cable operated backup system in addition to the split hydraulic redundancy. Of course in recent years they've added the automated control a.k.a. ABS to try to second guess the operator.

Pete C.

Reply to
Pete C.

With the electronic throttle control servo failing in the WOT position and ABS second guessing your braking, you would likely have gone right through the garage, both the front door and the back wall.

Pete C.

Reply to
Pete C.

That would have ruined their breakfast !!!

Reply to
mst

Nice try. You obviously, regardless of gender, dont understand how to relate parallels.

:)

Reply to
mst

I give you the pick-up and the platform frame SUV built on chasis and suspensions from 1950 that all the people in the country have flocked to dealerships like sheep and plunked billions of dollars on and to which the automobile companies have spent next to nothing on in technology.

Reply to
Bob Palmer

They acutally call it "Drive-by-Wire Throttle SystemT"

Steve

Reply to
Steve Mackie

Perhaps teh seat cushions are floatation devices in these cars! ;-)

Reply to
James C. Reeves

Likely because "driving" involves/requires steering as well as throttle. Calling something "drive-by-wire" would imply that all systems required/necessary in order to "drive" (i.e. brakes, throttle, steering) are

*all* involved in the "drive-by-wire" system. Honda used a very poor description of the "feature".
Reply to
James C. Reeves

Because "drive by wire" means everything like throttle, brakes, steering, etc. Honda marketing is misleading people.

Reply to
Bucky

And I thought GM and Crapsler were bad for misleading advertising.

Reply to
High Tech Misfit

But the traction control system would keep the car going in a straight line. =)

Reply to
Bucky

I woudln't go that far but you would have at least spilled some milk.

Reply to
Bruce Chang

Indubitably true.

True again.

But in the comparison of aircraft "fly-by-wire" and the idea of truly analogous automotive "drive-by-wire", the plot tends to get lost.

Aircraft "fly-by-wire" came about to address certain actual, specific issues regarding the rather inmportant goal of keeping an airplane in the air. Automotive "throttle-by-wire" (to coin a more accurate phrase) arose in an attempt at meeting emissions regulations. The difference is fundamental and of great import: One is critical, the other is utterly useless absent its regulatory impetus.

To install true "drive-by-wire" in a road-going automobile on current roads would be astonishingly stupid. Airplanes are not cars and do not live in even remotely the same environment.

Reply to
Hugo Schmeisser

Yea, even if you didn't want it to.

Reply to
James C. Reeves

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