How Lexus Fixed Tesla's Bad Idea: Steer-By-Wire Yoke

Engineering Explained
3 HN recommenders · recommended in 2 months, 2023–2024
YouTube
7M views · 3 years ago · explainer · intermediate · dated

Engineering Explained looks at the Lexus steer-by-wire yoke and why it works better than Tesla's version. It explains variable-ratio steering and how the system gets by without a mechanical link, using triple redundancy.

HN people recommend it as the clear explanation of variable-ratio steering and of why Lexus's yoke is better than Tesla's.

“Lexus' implementation of the yoke has been pretty successful, better than Tesla's”
Vehicle & transport designInput devices & novel interfaces
#steer-by-wire#yoke#lexus#tesla#carcontrols

7 comments from Hacker News

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@gambiting2023 · in “Tesla Cybertruck Pricing and Specs”
>>What's the upside? A much easier to manouver car, because you can get true variable speed ratio steering. It's explained really well here: ▶ this video Tbh I still think it's a bit of a silly idea. But it's not completely without its merits(the one done by Tesla was though - that was completely entirely pointless).
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@jimt12342023 · in “Tesla Cybertruck Pricing and Specs”
Engineering Explained did a really good video about this: ▶ this video
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@clouddrover2023 · in “How Lexus Fixed Tesla's Bad Idea: Steer-by-Wire Yoke [video]”
Submitted the video to Hacker News.
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@gambiting2024 · in “Apple to wind down electric car effort after decadelong odyssey”
Does it have a backup link? According to this video: ▶ this video There isn't a mechanical connection of any kind - the car just relies on triple(!) Backup for every component, including three fully independent power sources.
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@ed_balls2023 · in “Tesla Cybertruck Pricing and Specs”
Steer by wire is ok. We had all pedals by wire for ages. Hopefully they won't screw up the implementation again ▶ this video
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@grouchomarx2023 · in “Toyota Reveals Maverick-Sized Electric Pickup Concept We've Been Waiting For”
Lexus' implementation of the yoke has been pretty successful, better than Tesla's link ▶ this video
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@xyst2023 · in “I fixed a parasitic drain on my car in 408 days”
Personal vehicles are getting way too complicated now. Too many electronic components that can be points of failure. Recently viewed a video on “steer by wire yoke” ▶ this video It’s very interesting but there are so many additional motors, sensors, and actuators to simulate the same experience as mechanical based steering. If you lose electronic assistance in traditional mechanical based steering, you have to apply more force as a driver and makes the experience difficult. What happens if I lose one or more components in this “steer by wire yoke”? Seems like as a driver you are shit out of luck. If you are a pedestrian, bye bye. All I want is a walkable city with public and alternative forms of transportation. All of these “car innovations” are mostly useless.
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