And i dont really like it, however it does have rack and pinion and no ABS...
And i dont really like it, however it does have rack and pinion and no ABS...
Well I want my new cars to be as efficient and safe as possible as well as have a good deal of sportiness. I have nothing against new electronic control/assist. Being able to drive a large car in parking towers and around in Copenhagen requires power steering, computer controlled AC systems make setting a comfortable temperature quick and easy. The ECU makes sure that my engine is running as efficiently as possible, and ABS and traction control is great.
Having said that I don't think that there is any need to change to steer-by-wire as the current system is more than up to the task. You don't really need steer-by-wire unless the basic design is changed.
On the other hand I love driving my stripped 325i (no computer control except for EFI and no power assist except on the brakes).
Power, whether measured as HP, PS, or KW is what accelerates cars and gets it up to top speed. Power also determines how far you take a wall when you hit it
Engine torque is an illusion.
True. It is way easier to put it under the dash or something, but for some reason they don't. After close inspection of the presentations on my laptop there is no mentioning of it there. Must be in one of my notes. Will ask the teacher (Daf's former head of the engine department) about it anyway. Will get back to you
"A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'
"Religious belief is the “path of least resistance”, says Boyer, while disbelief requires effort."
Is drive by wire perfect? And can it be perfect for steering?.
I am not 100% sold on this drive by wire throttle control, But it is good it's still not perfect, And in my eyes if it's not perfect i wont drive a car that steers this way i feel you will loose all feel in driving soon.
"Just a matter of time i suppose"
"The elevator is broke, So why don't you test it out"
"I'm not trapped in here with all of you, Your all trapped in here with me"
I can tell you that i have driven a drive-by-wire car, not to mention dozens of other modern cars, and there is a TOTAL disconnect from ACTUALLY driving...
For it to be a NO feeling then it's not an optimal design taking in to account the target market.
Where "drive-by-wire" has been used it's been to date in the non-critical area of throttle.
Which vehjicle has dbw steering ?
Electric power assistance is different than dbw
A decent system for steering dbw would include sensors and generate force feedback at the wheel. In reality it would be possible to exactly match the feedback of a non-pas if desired ! BUT, most drivers don't care for "feedback" and are more than happy with the lack of road feel. So for the mass market it woulnd't be a biggy However, it WOULd be superb to have switchable steering as we now have suspension and gearchange !! You coudl switch to "rally mode" on rough twisty roads with 2 1/2 turns lock-to-lock and then go to "race mode" with 1 turn lock-to-lock. Switch feedback to low for gravel/offroad and to high for smooth tarmac/track
"A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'
I have herd someone tell me that the rav4 was some type of drive by wire steering? Is this true?.
"Just a matter of time i suppose"
"The elevator is broke, So why don't you test it out"
"I'm not trapped in here with all of you, Your all trapped in here with me"
RAV4 = "electric power steering" in the UK.
This is power assisted steering which uses similar feedback control loop as hydraulic but with elecctronic sensors and electric motors to provide the assistance. Fail-safe mode same as "normal" pas.
Very common in Europe and now being retro-fitted into older rally cars and kit cars
eg from an MGF, fitteed to a QUantum by one of the guys in our club. Took away the Ford steering column, left the rack in place. Bolted this in with a few fabricated brackets and bingo power steering
You can see the electric motor that provides the power assistance at the left
Am looking to use the COrsa version ( cheaper, more available, more reliable ) for daughters Quantums.
Irish company already makes an adjustable control for the power steering for use in competition
Last edited by Matra et Alpine; 12-05-2007 at 08:40 AM.
"A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'
all done before. We used to make soapboxes and used a wire to steer the wheels...
"I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams
Only cost would limit the application of multiple busses.
However, the bus devices are all fail-safe ... ie they fail with no impact on the bus itself, so the bus can continue.
Then there are no reasons that a manufacturer has ( 'cept price as always ) to have multiple UCEs, distributed ECUs, hot-standby modes, cold standby modes. All the tricks used in aviation.
"A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'
That is because of the signals passing through, right, each coded differenty and only translatable by the receiving device. I read multiple articles in my favourite magazine about this technology (no classes yet on it), so i don't know every detail.
UCE's ? Is that a typo or am I missing something ?Then there are no reasons that a manufacturer has ( 'cept price as always ) to have multiple UCEs, distributed ECUs, hot-standby modes, cold standby modes. All the tricks used in aviation.
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