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10-17-2012, 07:19 PM | #1 |
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The next step in removing feedback from cars: steer-by-wire
http://www.autoblog.com/2012/10/17/n...y-wire-system/
with dbw already being introduced in sports models, i wonder how long before they start putting steer-by-wire in sports cars? i hope not anytime soon. |
10-17-2012, 07:25 PM | #2 |
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Nooo!
just.. noo... |
10-17-2012, 07:40 PM | #3 |
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I thought the Lexus LS460 already has this? Apparently what happens on the earlier ones is that if you try to turn the wheel really fast lock to lock the steering wheel loses its position and awkwardly returns slowly to the correct position. At least that's what I saw in a video.
I think they also use brake by wire with hydraulic backup. I don't understand the point, you already have a steering rack, why not just...you know, attach the steering wheel to it? And you already have a brake system, why not you know, attach the brake pedal? Electronically controlled throttle is another matter, because the throttle can interact with the valve timing and it's better than a reactive system theoretically. |
10-18-2012, 01:52 AM | #4 |
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I don't like it, but they do this to cut weight and improve gas mileage by tenths.
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10-18-2012, 02:09 AM | #5 | |
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I don't understand why so many companies think that it's not okay to ask the driver to put some effort into turning the wheel. |
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10-18-2012, 02:28 AM | #6 | |
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The thing is, there are far less automotive enthusiasts than people who just want practical cars. It doesn't make sense to me that Porsche or BMW implemented electric power steering, nor does it make sense to me that the Rx-8's electric power steering is the best I've ever tried out, yet it's been so difficult to replicate. I wonder how much easier it is to build cars in LHD or RHD with electric power steering instead of a traditional linkage.
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10-18-2012, 02:39 AM | #7 | |
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What's for sure is that belted power steering pumps do suck up a lot of power at higher engine speed. |
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10-18-2012, 03:28 PM | #8 | |
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http://blogs.insideline.com/roadtest...alkaround.html it has column mounted EPS, most likely made by JTEKT. what other car has that same setup? the LFA... so EPS in and of itself isnt bad. the only thing "bad" are the people who expect no steering feedback, and call it luxurious, and the manufacturers who oblige and make cars with little to no feedback... and on that front, steer-by-wire sounds very good at filtering out feedback that we enthusiasts actually want. but for the yuppie businessmen of the world? steer-by-wire is great for them... |
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10-18-2012, 03:37 PM | #9 | |
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But still, there's a difference between steer by wire and electric assisted power steering. ---- by wire means the only thing the controls do is input a digital signal to the system that controls what you want it to control. Steer by wire essentially means zero feedback, because the wheels are supposed to turn exactly where you tell them to turn, and you're supposed to be able to decree that position independent of what forces the wheels are undergoing. |
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10-18-2012, 04:00 PM | #10 | ||
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