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PDF file of the official CHP report on the Sikes affair

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by justlurkin, Mar 17, 2010.

  1. justlurkin

    justlurkin Señor Member

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  2. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Thank you!

    How quickly can brake pads be worn down?

    Bob Wilson
     
  3. justlurkin

    justlurkin Señor Member

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    Reading the news articles from the past two days about the Toyota press conference on the preliminary findings (which included demos with a Prius in a stadium parking lot), I remember reading something about the demo drivers abusing the brakes and then showing that they can still stop the car.

    I wonder if they actually wore down a set of pads during the demo with the Sikes brake-and-gas tapdance...?
     
  4. hitechboy

    hitechboy New Member

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    Please read #84 post on the following thread:

    http://priuschat.com/forums/prius-hybrid-news/77852-sikes-accelerator-braking-data-9.html

    "Lyons also clarified Michels statement about the number of times Sikes must have hit the brakes and the accelerator. He said that the data showed that Sikes pressed and released the brakes 254 times, and did not show Sikes pressing on the accelerator, only that the throttle remained open throughout the incident."
     
  5. chimo

    chimo Junior Member

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    One accelerator press held down and then repeated jamming of the brake pedal of would also explain the data - sort of what someone would do if they were trying to simulate SUA and an attempt to slow down the car.
     
  6. justlurkin

    justlurkin Señor Member

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    It would be a simple matter for the demo drivers to do just that to see if the brake pad wear can be replicated, which was what Bob Wilson was asking about.
     
  7. MJFrog

    MJFrog Active Member

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  8. KK6PD

    KK6PD _ . _ . / _ _ . _

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    The very least the CHP's could do is issue a speeding ticket for being stupid....
     
  9. hitechboy

    hitechboy New Member

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    Lyons said "did not show Sikes pressing on the accelerator"!
     
  10. uart

    uart Senior Member

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    Huh? There is no sensor that shows whether or not he is pressing on the accelerator as opposed to the accelerator being held on in some other way. So what exactly is your point?
     
  11. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Actually inspired by one of my favorite programs, Mythbusters. Once they demonstrate something is not as claimed, they then adjust the experimental conditions to replicate the results (GRINS). That is my favorite part of the program ... like bug bomb BOMB or the Hindenburg.

    Bob Wilson
     
  12. hitechboy

    hitechboy New Member

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    OK, so there is no sensor!

    I thought Lynos mean the sensor read no application on the accelerator.
     
  13. carz89

    carz89 I study nuclear science...

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    Most likely, it means he's just trying to be frugal with his gas money, not necessarily frugal with everything else (ahem...$700,000 debt). I think the license plate has no relevance to the issue, but it is a nice license plate!
     
  14. carz89

    carz89 I study nuclear science...

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    Well the press is playing this one like a ping pong ball. San Diego News Tribune observe that the CHP believes his story and is portraying Mr. Sikes "sympathetically." Channel 10 News is headlining the fact that the CHP saw brake lights flashing.

    Just as Toyota might not have seen the police report prior to their press statement, I think CHP has not paid one iota of attention to any of the technical findings so far. Either that, or the CHP doesn't understand them.

    The police lights are on, but nobody's home!
     
  15. Highly ImPriused

    Highly ImPriused Impressive Member

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    There is a sensor, it just can't distinguish between someone stomping continuously on the pedal and it being stuck down. FWIW, many of us have programmed an x-gauge into our ScanGauges which displays the gas pedal position from 0 to 100, depending on how hard you depress it. This is not the same thing as the throttle opening position, so there is certainly a sensor there. Whether or not that type of data is available in an event log, I don't know.
     
  16. Prius 06

    Prius 06 Member

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    Has anyone thought of the idea of him putting it in neutral for a few days and jamming on the brakes? IF he had been planning this out I would think you would do stuff to the car to help your story.
     
  17. hitechboy

    hitechboy New Member

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    If the car is in neutral, what would jamming on the brake do?
     
  18. hitechboy

    hitechboy New Member

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    Then its a different story. Lynos said "did not show Sikes pressing on the accelerator", i.e. he didn't press on the accelerator.
     
  19. Highly ImPriused

    Highly ImPriused Impressive Member

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    But if Sikes was continuously depressing the accelerator and then logged 254 on-off applications of the brake pedal, I would presume that the initial depression of the accelerator would drop off the log.
     
  20. uart

    uart Senior Member

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    Ok now I think I see what your point is. You're saying that the above statement implies that the throttle opening sensor was reporting 100% while the accelerator position sensor was reporting 0%.

    Honestly I think you are reading way too much into that statement to make this claim. That would be a very specific and very telling claim if true. So much so that I am certain they would have stated it explicitly rather than requiring that you "read between the lines" as I think you are doing. In my opinion all the statement is saying is that he did not repeatedly depress and release the accelerator.
     
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