ICE comes on anyway

Discussion in 'Prime Main Forum (2017-Current)' started by priuscatprimeguy, Feb 26, 2017.

  1. priuscatprimeguy

    priuscatprimeguy Senior Member

    Joined:
    Nov 1, 2016
    2,730
    2,625
    0
    Location:
    Farmington Hills, Michigan
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Well I took someone's suggestion and started the car then turned off the car then restarted it, that theory didn't work, drove to the carwash about 1/2 mile away then while paying for the carwash I turned off my car then turned it back on, left the carwash I turned on cruise control and BAM ICE kicked in again

    Posted via the PriusChat mobile app.
     
    HPrimeAdvanced likes this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    86,233
    38,139
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    are we shooting for 1,000 posts?:sneaky:
     
  3. priuscatprimeguy

    priuscatprimeguy Senior Member

    Joined:
    Nov 1, 2016
    2,730
    2,625
    0
    Location:
    Farmington Hills, Michigan
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    that's my goal:p
     
    HPrimeAdvanced and bisco like this.
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    86,233
    38,139
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i'm doing my part.;)
     
  5. priuscatprimeguy

    priuscatprimeguy Senior Member

    Joined:
    Nov 1, 2016
    2,730
    2,625
    0
    Location:
    Farmington Hills, Michigan
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    fifty five more to go:p
     
    HPrimeAdvanced likes this.
  6. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Just wanted to add me experience to the 'slope ICE' incident list. I've put 10,000 miles on my Prime without experiencing the ICE-surprise. Then it happened to me twice in the last week. Garage kept car (at 55-60F), outdoor temps in both cases in the low 50's. Both times well less than full SOC.

    Can't remember much more about conditions for the first case, but did take more careful note the second time. On the second one, climate was on ECO mode, no cruise control, in EV mode since startup, had about 21 miles remaining from original 31 mile state at full charge start. I went down a moderate hill, about a half mile steady descent, at 45mph. Put it in B mode all the way down, fairly hard braking to a stop sign at the bottom.

    As I reached the stop sign, the ICE kicked on. I turned, and accelerated away, with the engine making a good bit of (typical HV type) noise. Throughout this event the display showed 'EV mode', but the cartoon car icon was black/empty, indicating the ICE was on. Not long after that the ICE turned off. It seemed like only a minute or so - shorter than a normal warmup cycle, but I'm not positive about that. Then it appeared to be back in normal EV operation. (I may have toggled it to HV at that point, and then back to EV - vaguely remember trying that, but not sure - if I did I'm pretty certain it was after the ICE cut off on it's own.)

    I'm going to drive over and try that hill again to see if I can replicate it.
     
  7. Nougatti

    Nougatti Member

    Joined:
    Jul 15, 2016
    119
    55
    0
    Location:
    Norway
    Vehicle:
    2012 Prius Plug-in
    Model:
    N/A
    Living with well below freezing temperatures has led me to experiment a bit and the "speed limit" for when the engine kicks in during very gentle acceleration drops as the temperatures do. I try to always use a block and cabin heater (which affects said "speed limit" positively) but when it's REALLY cold (-20'C) the ICE always fires up right away as soon as the car is turned on.

    All this is with the heater completely off (just to make that clear).


    iPhone ?
     
    HPrimeAdvanced likes this.
  8. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Tried it again two times this morning, and couldn't reproduce. One thing I should have mentioned for the ICE-on incident in previous post was that the vehicle was fully loaded - probably about 800lbs. Today it was only about 270 lbs load. Maybe that load produces a lot more regen...
     
  9. MikeDee

    MikeDee Senior Member

    Joined:
    May 9, 2013
    1,041
    364
    0
    Location:
    San Francisco Bay Area
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    The car has a mind of its own anyway. I was driving on the freeway in EV mode, plenty of charge left in the battery, foot part throttle, then the ICE came on. Go figure. I'm not about to obsess over it.
     
  10. priuscatprimeguy

    priuscatprimeguy Senior Member

    Joined:
    Nov 1, 2016
    2,730
    2,625
    0
    Location:
    Farmington Hills, Michigan
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    awww com on there's 10 post's to go to 1000:rolleyes:
     
    HPrimeAdvanced and benagi like this.
  11. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Agreed. As a Comp Sci guy, I am just curious about the way they programmed this thing.

    It also is making me realize how it is becoming very difficult to isolate intermittent problems with these software-driven cars. Problems with my first car in 1974 might be a weak ignition coil, or a bad ignition switch, etc. Relativity easy to diagnose. But now it might be line 12,354 of 8,000,000 lines of code!
     
  12. MikeDee

    MikeDee Senior Member

    Joined:
    May 9, 2013
    1,041
    364
    0
    Location:
    San Francisco Bay Area
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    As a software guy, what do you think about self-driving cars? I submit it's impossible to write code that would account for every possible off normal occurance that could happen driving a vehicle.
     
    KrPtNk, pilotgrrl and HPrimeAdvanced like this.
  13. ct89

    ct89 Active Member

    Joined:
    Dec 31, 2010
    323
    263
    1
    Location:
    New England
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Maybe true...But ask yourself how well human-driven cars are handling some of those off-normal occurrences...
    I like the vision where the cars are not just deciding what to do autonomously, but they are communicating with other cars near them and working together...Something else human-driven cars haven't shown a great propensity for unless you factor in certain hand gestures...
     
  14. DavidA

    DavidA Prius owner since July 2009

    Joined:
    Jul 14, 2009
    2,166
    1,643
    18
    Location:
    Chicago western burbs
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Just wondering if my ICE might come on anyway, today or tomorrow, because it is cold again. 954.
     
    HPrimeAdvanced likes this.
  15. MikeDee

    MikeDee Senior Member

    Joined:
    May 9, 2013
    1,041
    364
    0
    Location:
    San Francisco Bay Area
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    One would think if there were a lot of bugs in it, we'd be getting a bunch of firmware updates. Happens very infrequently, if at all. My 2013 got a software update for the inverter issue. That was it. It might not be as complex as you think it is.
     
    pilotgrrl and HPrimeAdvanced like this.
  16. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Pretty sceptical. We've got a long way to go with AI in general. As ct89 says, the key might be having cars talking to each other so they stay out of each other's way. A glitch could still get you killed (and diagnosing such a failure will be a bear!), but is such a glitch less likely than the myriad of errors humans make everyday while driving? Perhaps...

    Yesterday I had a situation where a power line crew was working in my neighborhood, and had a temporary one-way stretch in place with a guy at each end with the rotating 'Slow/Stop' signs. They screwed up and sent both opposing lines on a collision course. Fortunately it was a short, slow speed encounter, and I realized what was happening and pulled to one side to let the others by.

    How would an autonomous car have dealt with this? It would have to recognise the line crew's presence (understanding their handheld signals), and then deal with their error. Might have made for an interesting gridlock situation, but at worst probably would have stopped all vehicles without a collision taking place.
     
    #956 fneil, Mar 7, 2018
    Last edited: Mar 7, 2018
    KrPtNk, pilotgrrl and HPrimeAdvanced like this.
  17. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Perhaps, but never assume because there are no updates, there are no bugs ;)
     
    pilotgrrl likes this.
  18. HPrimeAdvanced

    HPrimeAdvanced Senior Member

    Joined:
    Mar 2, 2017
    2,295
    3,497
    0
    Location:
    Anaheim, CA
    Vehicle:
    2017 Prius Prime
    Model:
    Plug-in Advanced
    I am happy to say, I will NEVER own an autonomous car, let alone ride in the bloody things. I just hope they keep them off the roads I drive!!

    Posted via the PriusChat mobile app.
    AChoiredTaste.com
     
    bisco likes this.
  19. pilotgrrl

    pilotgrrl Senior Member

    Joined:
    Jul 23, 2017
    889
    1,789
    0
    Location:
    Chicagoan in TX
    Vehicle:
    2016 Prius
    Model:
    Three
    IBM tech sport's first question on any call (ThinkPad pre- and post-Lenovo and servers): "Did you flash the BIOS?"

    Microsoft: Patch Tuesday

    Adobe: Home of the "OMG, yet another Flash zero-day patch!"

    Granted, I don't have a Prime, all I've gotten are 2 Entune updates. Wish Toyota would provide release notes.

    Posted via the PriusChat mobile app.
     
    HPrimeAdvanced and fneil like this.
  20. fneil

    fneil Member

    Joined:
    Jul 26, 2017
    70
    51
    0
    Location:
    Carrboro, NC
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    My ICE came on again today, 3rd time in a week after none the first 7 months. In EV mode, level ground, coming to a stop on a rural road, 'B' not engaged. Ran for about 15 seconds as I accelerated away, then cut off and stayed off the rest of the EV miles for the day.

    This is getting irritating. I'm not happy about the ICE coming on and running for a short cycle - not good for a motor. On the other hand getting my North Carolina dealer to address something intermittent like this would be just about impossible (doubt they've ever worked on a Prime).
     
    HPrimeAdvanced likes this.
Loading...