RX Steering assist hands detection?…
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Driver
Joined: Jun 2015
Posts: 136
Likes: 13
From: Japan
RX Steering assist hands detection?…
Sure enough, that's illegal, don't-try-at-home stuff (and please don't), but still, I wonder if anyone knows a guys who knows a guy who tried to do something like this vid, but on a 4RX? Possible at all? Mercedes S-class hands detection can be fooled with a can of coke, Audi version is on the vid below. Wonder how well Lexus has this implemented?… How is it implemented at all? Pressure detection? Impedance? Both? Something else?… Educational reasons, of course.
Also, not extremely related, but still… honestly, on my RX, I do always keep hands on the wheel, but the bloody thing would often ask me to basically "grab harder", which could be pretty annoying at times ("I'm already holding the goddamn wheel!")
Also, not extremely related, but still… honestly, on my RX, I do always keep hands on the wheel, but the bloody thing would often ask me to basically "grab harder", which could be pretty annoying at times ("I'm already holding the goddamn wheel!")
Rookie
Joined: Jan 2015
Posts: 82
Likes: 7
From: CA
Im not sure how it knows if your hands are on the steering wheel or not... but it does give a warning after awhile to hold the steering wheel.
I was playing around with the radar cruise control and lane keep assist, basically on an open road, i set it and let go of everything... the lane keep assist adjusts when the car gets to the edge of the lane and doesnt just keep it centered.
Basically what happened was the car sort of swerved within the lane for a while then had a warning to tell me to hold the steering wheel.
I was playing around with the radar cruise control and lane keep assist, basically on an open road, i set it and let go of everything... the lane keep assist adjusts when the car gets to the edge of the lane and doesnt just keep it centered.
Basically what happened was the car sort of swerved within the lane for a while then had a warning to tell me to hold the steering wheel.
Rookie
Joined: Sep 2014
Posts: 65
Likes: 11
From: Alberta
You can also adjust the sensitivity on the steering wheel. But it just uses the camera from the lane departure, it doesn't actually have a sensor on the steering wheel to see if you are holding it. Just if you swerve too much to the sides of the lane it tells you to take a break after awhile.
I've actually tried the lane departure in a more rural area, with only one lane, and the other side is just the gravel then ditch. Around a small bend, I went hands off, and the car turned pretty smoothly around the bend, and judged by the distance from one lane to see how far the side of the road was. I was pretty impressed.
I've actually tried the lane departure in a more rural area, with only one lane, and the other side is just the gravel then ditch. Around a small bend, I went hands off, and the car turned pretty smoothly around the bend, and judged by the distance from one lane to see how far the side of the road was. I was pretty impressed.
Lead Lap
Joined: Mar 2015
Posts: 4,611
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From: In your head
You can also adjust the sensitivity on the steering wheel. But it just uses the camera from the lane departure, it doesn't actually have a sensor on the steering wheel to see if you are holding it. Just if you swerve too much to the sides of the lane it tells you to take a break after awhile.
I've actually tried the lane departure in a more rural area, with only one lane, and the other side is just the gravel then ditch. Around a small bend, I went hands off, and the car turned pretty smoothly around the bend, and judged by the distance from one lane to see how far the side of the road was. I was pretty impressed.
I've actually tried the lane departure in a more rural area, with only one lane, and the other side is just the gravel then ditch. Around a small bend, I went hands off, and the car turned pretty smoothly around the bend, and judged by the distance from one lane to see how far the side of the road was. I was pretty impressed.
Driver School Candidate
Joined: Nov 2015
Posts: 49
Likes: 2
From: Texas
I believe that most vehicles use the torque sensors for the EPS to determine if the steering wheel is being held or not. Cheapest way to do it utilizing sensors already in use. If there is an extended period of time when no input from the steering wheel is sensed the warnings will come up.
Thread Starter
Driver
Joined: Jun 2015
Posts: 136
Likes: 13
From: Japan
I believe that most vehicles use the torque sensors for the EPS to determine if the steering wheel is being held or not. Cheapest way to do it utilizing sensors already in use. If there is an extended period of time when no input from the steering wheel is sensed the warnings will come up.
But it also kinda looks like they are using impedance… somehow?… I'm not quite sure how though, since in some cases it's enough for me to just give more hand pressure on a wooden part of the wheel and the system detects my hands (even though as WAS holding the wheel in the first place). I could theoretically trigger some of the torque sensors when I'm trying to give the wheel a pressure though… hmm…… Can these torque sensors be THAT sensitive?…
Just for mechanical detection (vs mechanical + electrical), it could theoretically be relatively easy to create something like on the video. Would be a pretty annoying contraption though
A note to myself, next time I visit my Lexus dealership, I must not forget to talk to a Lexus mechanic… Not sure if they share this sort of info, but never hurts to try, right?
Driver School Candidate
Joined: May 2016
Posts: 11
Likes: 0
From: TX
Well, it was bound to happen with the autopilot features. Still, it's not as if the driver fell asleep and crashed - this could happen to any vehicle.
No brakes - yikes.
The National Highway Traffic Safety Administration opened a so-called preliminary evaluation into the design and performance of automated driving systems in Tesla’s Model S, the agency said Thursday. A preliminary evaluation is an initial official probe by the agency and could later be elevated to a more significant engineering analysis if widespread, significant problems are found. It isn’t an official determination that a defect exists in the vehicle.
Regulators opened the probe after Tesla alerted them to a fatal highway crash in Williston, Fla., May 7 in which a 2015 Model S was using the autopilot feature. The crash occurred when a tractor-trailer made a left turn in front of the Tesla car at an intersection of a noncontrolled access highway, the agency said, citing preliminary reports. The driver died in the crash.
Regulators opened the probe after Tesla alerted them to a fatal highway crash in Williston, Fla., May 7 in which a 2015 Model S was using the autopilot feature. The crash occurred when a tractor-trailer made a left turn in front of the Tesla car at an intersection of a noncontrolled access highway, the agency said, citing preliminary reports. The driver died in the crash.
A Tesla Model S with the Autopilot system activated was involved in a fatal crash, the first known fatality in a Tesla where Autopilot was active. The company revealed the crash in a blog post posted today and says it informed the National Highway Transportation Safety Administration (NHTSA) of the incident, which is now investigating.
The accident occurred on a divided highway in northern Florida when a tractor trailer drove across the highway perpendicular to the Model S. Neither the driver — who Tesla notes is ultimately responsible for the vehicle’s actions, even with Autopilot on — nor the car noticed the big rig or the trailer "against a brightly lit sky" and brakes were not applied.
Because of the high ride-height of the trailer, as well as its positioning across the road, the Model S passed under the trailer and the first impact was between the windshield and the trailer. Tesla writes that if the car had impacted the front or rear of the trailer, even at high speed, the car’s safety systems "would likely have prevented serious injury as it has in numerous other similar incidents."
The accident occurred on a divided highway in northern Florida when a tractor trailer drove across the highway perpendicular to the Model S. Neither the driver — who Tesla notes is ultimately responsible for the vehicle’s actions, even with Autopilot on — nor the car noticed the big rig or the trailer "against a brightly lit sky" and brakes were not applied.
Because of the high ride-height of the trailer, as well as its positioning across the road, the Model S passed under the trailer and the first impact was between the windshield and the trailer. Tesla writes that if the car had impacted the front or rear of the trailer, even at high speed, the car’s safety systems "would likely have prevented serious injury as it has in numerous other similar incidents."
Last edited by StatCoder; Jun 30, 2016 at 02:39 PM.
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Rookie
Joined: May 2016
Posts: 87
Likes: 5
From: CA
^^^^^^^^^^^^^^^^^^^^
On May 7 at 3:40 p.m. on U.S. 27 near the BP Station west of Williston, a 45-year-old Ohio man was killed when he drove under the trailer of an 18-wheel semi.
The top of Joshua Brown’s 2015 Tesla Model S vehicle was torn off by the force of the collision. The truck driver, Frank Baressi, 62, Tampa was not injured in the crash.
The FHP said the tractor-trailer was traveling west on US 27A in the left turn lane toward 140th Court. Brown’s car was headed east in the outside lane of U.S. 27A.
When the truck made a left turn onto NE 140th Court in front of the car, the car’s roof struck the underside of the trailer as it passed under the trailer. The car continued to travel east on U.S. 27A until it left the roadway on the south shoulder and struck a fence.
The car smashed through two fences and struck a power pole. The car rotated counter-clockwise while sliding to its final resting place about 100 feet south of the highway.
Brown died at the scene.
----------
He was a fan of YouTube... here he is 30 days before death, and his Tesla saved his life on this occasion:
On May 7 at 3:40 p.m. on U.S. 27 near the BP Station west of Williston, a 45-year-old Ohio man was killed when he drove under the trailer of an 18-wheel semi.
The top of Joshua Brown’s 2015 Tesla Model S vehicle was torn off by the force of the collision. The truck driver, Frank Baressi, 62, Tampa was not injured in the crash.
The FHP said the tractor-trailer was traveling west on US 27A in the left turn lane toward 140th Court. Brown’s car was headed east in the outside lane of U.S. 27A.
When the truck made a left turn onto NE 140th Court in front of the car, the car’s roof struck the underside of the trailer as it passed under the trailer. The car continued to travel east on U.S. 27A until it left the roadway on the south shoulder and struck a fence.
The car smashed through two fences and struck a power pole. The car rotated counter-clockwise while sliding to its final resting place about 100 feet south of the highway.
Brown died at the scene.
----------
He was a fan of YouTube... here he is 30 days before death, and his Tesla saved his life on this occasion:
Driver School Candidate
Joined: May 2016
Posts: 11
Likes: 0
From: TX
There are some troubling new details about the deadly crash involving Tesla Autodrive. Police have confirmed that they found a DVD player in the car of a man who died earlier this week after his Telsa Model S hit a truck while in Autopilot mode. He was reportedly watching a Harry Potter movie when it happened.
Whether or not this played a role in the crash remains unclear. Our friends at Jalopnik have suggested that the Tesla Autopilot feature actually has a blind spot. Meanwhile, the driver was known for filming dashcam footage while listening to podcasts, so one could imagine that he became distracted. The incident is inevitably a complicated tragedy, one that the federal authorities are investigating closely. Autopilot or not, it’s not a good idea to watch a movie while driving.
Whether or not this played a role in the crash remains unclear. Our friends at Jalopnik have suggested that the Tesla Autopilot feature actually has a blind spot. Meanwhile, the driver was known for filming dashcam footage while listening to podcasts, so one could imagine that he became distracted. The incident is inevitably a complicated tragedy, one that the federal authorities are investigating closely. Autopilot or not, it’s not a good idea to watch a movie while driving.
Apparently, he felt confident enough to be watching a DVD on a highway that has intersections. This would seem legitimately useful in stop-and-go highway traffic where you might spend an hour going 20 mph and maybe could get some work done.
Last edited by StatCoder; Jul 1, 2016 at 04:27 PM.
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