1. Attachments are working again! Check out this thread for more details and to report any other bugs.

PCS, LKA, e-VSC...Are These Techs the future "ABS"??

Discussion in 'Gen 3 Prius Main Forum' started by Thai, Feb 1, 2011.

  1. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
    Hey all,

    Thanks to a recent poster, i got into more research about pre-collision system (PCS), lane keep assist (LKA), and enhanced VSC.

    E-VSC is on all Prius. E-VSC provides steering-assist torque to help the driver steer in the direction that provides greatest control.

    PCS is radar-based and is designed to notify your of an impending frontal collision and/or lessen the damage via brake application (& priming) and retraction of front seatbelts.

    LKA basically helps keep your Prius in your lane of travel. You guys can read more about it in your brochure/OM.

    The point of this thread is that it seems like, NHTSA and IIHS are looking heavily into these technologies and may require manufacturers to adopt them on all their cars, like what happened to ABS technology or sude curtain airbags. I found this rather eye-opening article: http://www.esafetychallenge.eu/download/challenge/esafety_background_paper.pdf

    "Warning and Emergency Braking Systems detect at an early stage the danger of an accident with the vehicle in front of you. In the case of a potential collision, they warn you about the danger, and when there is no reaction to the warning, the technologies activate the brakes together with systems such as seatbelt pretension to avoid or mitigate a crash.

    Benefits: “28% less rear-end collisions with personal injuryâ€


    Lane Support Systems can assist and warn you when you unintentionally leave the road lane or when you change lanes without indication. Sometimes a moment of inattention is enough to make your vehicle stray from its lane. The systems monitor the position of the vehicle in the road lane and while Lane Departure Warning warns you if the car unintentionally wanders from the path, Lane Keeping Support helps you correct the course of your car.


    Benefits: “15% less deaths on European roadsâ€


    Studies show that more deaths occur from rear-end crashes than any other kind. The Insurance Institute for Highway Safety (IIHS) has estimated that the Forward Collision Warning function with Automatic Braking alone could be relevant for around 2,268,000 accidents every year in the US, of which 7,166 are fatal.

    The European Commission funded project eIMPACT estimated that if all vehicles in Europe were equipped with the Lane Keep Assist system, the number of deaths would decrease by 15% and the number of injuries by 8.9%. Given today’s number of deaths in Europe this would represent 6,300 lives saved each year.

    In the US, the IIHS estimates that the Lane Departure Warning system could help in approximately 483,000 accidents every year, of which 10,345 are fatal."

    ---------------------------------------------------------------------------
    Interestingly, NHTSA, IIHS, and the Europeans are already collecting data to support these technologies. These are indeed quite proven technologies! Currently, these technologies are almost "required" on most high-end luxury cars. Over the next few years, we will see these technologies trickle down to lesser models. I am still shocked that my Prius has these techs for under $35,000!! :rockon: There is not another car today that has these technologies for under $45,000! From the looks of things, IIHS and NHTSA will soon require all to have this...as is the case with rear-view camera for 2012.

    Thoughts?
     
  2. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    5,683
    953
    124
    Location:
    Redondo Beach, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Unfortunately, I don't have much faith in them actually reducing fatality if they were to be mass adopted due to the concept of risk homeostasis. People would just drive less carefully essentially eliminating their benefits.
     
  3. stream

    stream Senior Member

    Joined:
    May 12, 2008
    2,977
    452
    14
    Location:
    Long Island, NY
    Vehicle:
    2010 Prius
    Model:
    V
    Thoughts?

    Thanks for posting that long winded post...twice in less than 15 minutes... :eek:
    http://priuschat.com/forums/gen-iii...89487-need-help-2011-prius-v.html#post1257334
     
  4. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
  5. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    5,683
    953
    124
    Location:
    Redondo Beach, CA
    Vehicle:
    2010 Prius
    Model:
    V
  6. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
    Don't mind him, it is that time of month for him....

    Just ignore him...he is like a little pissy kid who annoys everyone.
     
  7. AussieOwner

    AussieOwner Active Member

    Joined:
    Jul 12, 2007
    1,091
    67
    0
    Location:
    Sydney, Australia
    Vehicle:
    2007 Prius
    Model:
    N/A
    I am all in favour of anything that can possibly reduce accidents. As 32Kcolors said, there will be a tendency for people to become less attentitive to their driving and let the "system" do all the work, but that will, in its turn, encourage more systems that eventually will do most of the driving. These systems will, of course, get those who feel that their right to kill themselves, and any other person that gets in their way, screaming about loss of these rights, but for the majority of us, all to the better.
     
  8. cproaudio

    cproaudio Speedlock Overrider

    Joined:
    Jul 7, 2010
    2,401
    759
    0
    Location:
    CA
    Vehicle:
    2010 Prius
    Model:
    V
    VSC will be mandatory in 2012 but I doubt LKA and PCS will anytime soon. There are 2 kind of PCS, one that brakes for you the other will not. Most PCS will only give warning chime, pre charge the brakes, and tighten the seat belt. The PCS on the Prius will so all that plus should you fail to apply the brakes, it will apply the brakes at maximum force at the last minute but it will not completely stop the vehicle.
    Here's a clip of Ford's pre collision warning. It's toward the end.

    Ford is also researching lane departure warning but according to the video, it will not auto correct like the Prius

    It looks like a lot of these safety features still require the driver to intervene.
     
  9. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
    I believe that rear-view camera will be mandatory within the next year or so (2014?). I would bet that within the next 5 years, PCS and LKA etc will be required or highly encouraged (kinda like how VSC has been encouraged by NHTSA for the past 5 years).

    Although some PCS do not intervene, the fact that it alerts and warns is effective. These drivers suffer from inattentiveness, not that they are in a deep REM sleep! :D At least, i hope not. These systems are there to alert of possible dangers...and this is why they are effective because this is what most people needs.
     
  10. stream

    stream Senior Member

    Joined:
    May 12, 2008
    2,977
    452
    14
    Location:
    Long Island, NY
    Vehicle:
    2010 Prius
    Model:
    V
    Very mature.
     
  11. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    5,683
    953
    124
    Location:
    Redondo Beach, CA
    Vehicle:
    2010 Prius
    Model:
    V
    While that's true on paper, the reality is more drivers will become less attentive over time under the guise of PCS and it'll be too late in some cases, still resulting in accidents. The concept of risk homeostasis also explains why the helmet law, although effective in reducing the extent of injuries to the head, actually resulted in an increase in the number of visits to the ER.

    You could think of PCS, LKA, adaptive CC, etc. as precursors to self-driving cars a la Minority Report. We'll see a dramatic reduction in accidents only when you take the human element out of it.

    Your recent posts to Electric Me et al. were very mature too.
     
  12. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

    Joined:
    Oct 28, 2010
    7,744
    6,537
    0
    Location:
    Redneck Riviera (Gulf South)
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Huh???
    Waitaminute. I gotta throw the BRAVO-SIERRA flag for that one. :rolleyes:
    While I understand the concept of risk homeostasis, I don't think it applies to the fact that head injuries have increased for M/C operators. I think the fact that there are faaaaaaaaar more M/C (and ATV) operators out there out there have resulted in more 'donor cycle' riders getting to be (*) ah...donors. There are lotsa folks out there that don't like being told that they have to wear a helmet, and so they gin up all kinds of daffy "studies" saying helmets reduce hearing, reduce visibility, add to neck injuries, and now.....(drum roll) they make riders ride less attentively???? Sorry. PPPHHhhhhtttttt!!!!!
    FWIW...I wasn't at all a big fan for helmet and seat-belt laws for over-21 riders and drivers. However (comma!) since I have to help pay for health care for every man, woman, and child in the USofA now, it seems only fair that laws should be enacted to help the folks in the shallow end of the gene pool from becoming a financial burden to the citizenry.
    If you want to ride without a helmet or a seatbelt...knock yerself out!!! (no pun intended! :) ) In a fair world, the first responders should have the ability to giggle at you and drive away if you come up on the short end of an accident, but we don't live in a fair world.

    Soon and very soon (to quote from the hymn) PCS, LKA, e-VSC...and all the other golly-gee-whizz features will trickle down to the every-man's-car until the price of a base model Aveo reaches $30,000.
    Personally I really don't care much, since I can afford to drive almost any (normal) car I want....but there's going to be a tipping point for Government Mandated devices in automobiles that will drive an even bigger wedge between what people in America call "the rich" and "the poor".

    The winners?
    Heck I do not know.....
    Probably the Lawyers.
     
  13. Ryanpl

    Ryanpl Active Member

    Joined:
    Jun 24, 2010
    780
    158
    0
    Location:
    Brooklyn, NY
    Vehicle:
    2004 Prius
    Model:
    N/A
     
  14. 32kcolors

    32kcolors Senior Member

    Joined:
    Jul 14, 2009
    5,683
    953
    124
    Location:
    Redondo Beach, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Not less attentively, but they take on more risk (ride faster, perform more dangerous maneuvers, etc. that they would not otherwise do if they were unhelmeted).

    I suggested that, as I wrote that the helmet law has been effective in reducing the extent of injuries to the head. PCS may do the same thing as it reduces the impact speed, but accidents will still occur and may even increase, which is what the OP is worried about.
     
  15. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
    Has ABS resulted in more accidents from people braking at a later time or being less attentive?? Has VSC resulted in more rollovers because people turn corners faster?? Has airbags resulted in more fatality because people don't wear seatbelts?

    Those who lack common sense will still populate the earth before AND after the PCS invention. PCS just helps lessen the impact of these fools....

    People with common sense will continue to drive as before...i don't think that PCS would suck common sense out of folks who already have it.
     
  16. macman408

    macman408 Electron Guidance Counselor

    Joined:
    Mar 21, 2010
    1,179
    366
    1
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    V
    If one assumes the increase in ER visits post-helmet-law is true, keep in mind that some of those ER visits may have been converted from fatalities. I remember hearing about a statistic that after the army provided helmets to enlisted men, the rate of head injuries *increased*... Because many of those injured would have been dead without the helmet!
     
  17. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    44,896
    16,122
    41
    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    I think you mean S-VSC, not E-VSC. Don't forget Toyota's VDIM (on the Camry and Highlander Hybrid as well as most Lexus models).

    Maybe not PCS but perhaps pedestrian-type collision mitigation systems like Volvo's city safety system. I would think that's more important than PCS because it helps with low-speed city-type scenarios.
     
  18. Thai

    Thai Prius Neophyte

    Joined:
    Oct 23, 2009
    1,197
    89
    0
    Location:
    Texas
    Vehicle:
    2010 Prius
    Model:
    V
    Tideland, according to Prius brochure, it is indeed e-VSC. I prefer PCS because i drive on highway daily.
     
  19. cproaudio

    cproaudio Speedlock Overrider

    Joined:
    Jul 7, 2010
    2,401
    759
    0
    Location:
    CA
    Vehicle:
    2010 Prius
    Model:
    V
    It doesn't matter what you call it. It does the same thing. That's like arguing that Honda's antilock brakes as ALB not ABS.
     
  20. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    44,896
    16,122
    41
    Location:
    Canada
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Well mine just says VSC but I know the Japanese Toyota site says S-VSC.. S for steering-assisted.

    haha... or VSC, ESP, VSA, DSC etc... they all mean the same thing :D