Clarity Issues

Discussion in 'Clarity' started by jdonalds, Dec 22, 2017.

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  1. visajet

    visajet New Member

    Highest range I've seen so far is 50.7 miles Got 50.1 EV miles driving conservatively in Econ mode. Heater was off since temp was ~64deg.
     
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  3. Viking79

    Viking79 Well-Known Member

    No, I drove around all morning with temps from around 4 or 5 F without the engine starting at all. It definitely appears tied to battery temperature. Similar times when it reduces the charge rate to 4kw. I have crossed 10F many times and seen no difference in engine starting or not. It doesn't behave at all like the Volt that starts as soon as it hits an ambient temperature setting of 15, 25, or 35 depending on setting or year.
     
    Rajiv Vaidyanathan likes this.
  4. bpratt

    bpratt Active Member

    Something I read but can't seem to find now said: the engine will run when the temperature is 14 F or below. Once the engine starts, it will continue to run until it has warmed up.
     
  5. Rajiv Vaidyanathan

    Rajiv Vaidyanathan Active Member

    This is very interesting. Was it in heated garage when you first started it? So, perhaps the ICE decides whether to start based on some other factor?
     
  6. jdonalds

    jdonalds Well-Known Member

    Some things I found in the manual having to do with the engine running...

    On Page 109 under Driver Information Interface Warning
    "Temperature is Too Cold for Vehicle To Operate"

    Appears when the high voltage battery and other
    system control temperatures are too low to operate
    (approx. –22°F [–30°C] or below).
    ● You must wait for an increase in the ambient
    temperature or move the vehicle to a warmer location.
    ● Consult an authorized Honda Clarity Plug-In Hybrid
    dealer.
    U.S. Models
    ● In extremely cold climates, keep the vehicle stored in a
    garage.
    Canadian Models
    ● In extremely cold climates, keep the vehicle stored in a
    garage and connect the charging connector.

    Page 110 Engine Started for Oil Circulation
    Appears when the engine starts automatically when
    the engine has not started for a long time.

    Auto Engine Stop/Start
    The car will select the appropriate source of power depending on the drive mode you select.
    As a result, the engine will automatically start or stop as needed to either charge the battery or provide supplemental power.
    Under certain circumstances, the engine may turn on or, if it is already on, it may not turn off.
    ● You are going uphill or accelerating aggressively.
    ● The climate control system is in heavy use.
    ● The Ambient temperature is too hot or too cold.
    ● The High Voltage Battery state of charge is very low.
    ● The vehicle is running a system check.
    System Check
    When the engine initially starts (between the time the POWER button is turned on and turned off), the vehicle conducts a system check.
    ● While the check is being conducted, the engine may periodically turn on and off. This, however, is normal.
    ● The curved blue line in the POWER/CHARGE Gauge will not appear during the system check (EV indicator may still turn on).
    ● Once the engine starts, it will continue to run until the system reaches operating temperature.
    The curved blue line in the POWER/CHARGE Gauge will reappear once the system check is completed.

    HV Button
    You can enable HV or HV Charge by pressing the HV button.
    The HV indicator comes on regardless of which source you have
    enabled. If you press the HV button again, or set the power mode
    to VEHICLE OFF or ACCESSORY, the source you have selected will be
    cancelled.
    ● HV
    To enable HV, press the HV button. In HV, the engine may run at
    times to drive the generator so that battery charge levels can be
    maintained.

    For U.S. Cars
    If the temperature of the High Voltage battery drops
    below approximately –22°F (–30°C), the power
    system will not start, the High Voltage battery will not
    operate and, as a result, the vehicle will not start.
    Store the vehicle in a garage or take another measure
    to insure that temperature of the High Voltage
    battery does not fall below this temperature. If
    necessary, consult an authorized Honda Clarity Plug-
    In Hybrid dealer.

    Canadian Models
    If the temperature of the High Voltage battery drops
    to approximately –22°F (–30°C) or below, the power
    system will not start. Wait for the High Voltage
    battery to warm up or move the vehicle to a warmer
    location. Note plugging the vehicle in will not help in
    this case.
    Store the vehicle in a garage or take another measure
    to insure that temperature of the High Voltage
    battery does not fall below this temperature. If
    necessary, consult an authorized Honda Clarity Plug-
    In Hybrid dealer.

    On page 423 Vehicle Stability Assist
    You may hear a motor sound coming from the
    engine compartment while system checks are being
    performed immediately after turning the power
    system on or while driving. This is normal.

    For any of you who may be driving on slippery roads...
    You may hear a motor sound coming from the
    engine compartment while system checks are being
    performed immediately after turning the power
    system on or while driving. This is normal.
     
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  8. dstrauss

    dstrauss Well-Known Member

    What’s with all you guys READING THE MANUAL?
     
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  9. Rajiv Vaidyanathan

    Rajiv Vaidyanathan Active Member

    So, this morning, I noticed something strange. After the car warmed up in my ultra-cold climate, the engine turned off to run on EV according to the energy usage display. However, the dash gauge still showed a white line instead of a blue line, suggesting it was NOT being powered by the battery, but by the ICE (which was not "lit up". What could this mean? The pictures are not very good, but I assure you that even though the engine appears "lit up" in the picture, it was not. It was lit up earlier but then shut off, with the power line still showing white.

    IMG_20180208_074658.jpg IMG_20180208_074703.jpg
     
  10. Kendalf

    Kendalf Active Member

    I had the same thing a few days ago. The white dither section of the power line means that the ICE can turn on or it can stay in EV. I think the computer gets confused at times. IMAG0492.jpg
     
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  11. dstrauss

    dstrauss Well-Known Member

    There is NO END to the confusion in this little jewel:

    Today on an all HV trek to Monahans TX (60 miles away) I only lost 3 miles of EV range but GAINED 2.3 miles of range on the way back...

    After three long trips with consistent loss of EV battery range, this is a real head scratcher - some new variables:
    1. 75-80 mph speed limits, but multiple construction slow downs (35-55 mph) going there
    2. Same speed limits but fewer slow downs on way back
    3. Beautiful 68 degree day with no winds
    Go figure...:confused:o_O:rolleyes:
     
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  13. jdonalds

    jdonalds Well-Known Member

     
  14. bfd

    bfd Active Member

    I've been able to drive at least 53 EV miles (actual - the ScanGaugeII is not recording RPM) over my past 5 charges. The range for those charges was between 53.0 to 57.1 mi. The weather's ideal right now - daytime temps between 68ºF–82ºF so no use of AC or heat. (I know, it's not fair… but it does account for the range I think.)

    I was also successful in replicating HV dropping the EV range to 36-37 miles before it somehow stops using EV range. So at least over the past few repeated trials, I'm seeing the same EV and EV/HV behaviors.
     
    Kendalf likes this.
  15. Rajiv Vaidyanathan

    Rajiv Vaidyanathan Active Member

    68°F-82°F in February? Where do you live? I want to move there. :)
     
  16. bfd

    bfd Active Member

    Far southwest corner of the Continental US… Even though we often have sunny Jan/Feb, it's unusually warm weather for us this winter. And still no rain.
     
  17. ravi100

    ravi100 New Member

    Question for fellow Clarity owners - I am getting a constant wind noise coming from the area of the drivers side
    mirror at speeds above 35mph. Nothing from the passenger side though. Is anyone else having this issue?

    Also, today I drove 55.7 actual miles before the ICE kicked in. Raleigh Durham area and the temp was an unusual 68 degrees.
     
    Kendalf likes this.
  18. Johngalt6146

    Johngalt6146 Active Member

    Yes - Mine will go to 48 or 48.5 miles on full charge with a level 1 charger. But its warm here - the garage is 50F or more.
     
  19. Johngalt6146

    Johngalt6146 Active Member

    After about 5 weeks of local use, running in EV with only overnight charges from a level 1 charger, we finally took a long trip of 683 miles to the Orlando area. The weather was warm, with AC on. We were in high-speed freeway mode most of the time but had intense local traffic and local construction for a few hours total. I used HV charge for only one short leg of the trip. Correcting for the electric charge I put in before I left home, the gas mileage we got was 40 mpg. That is great as far as I'm concerned. The car was extremely quiet, comfortable and reliable for the entire trip.
    I have only 2 serious observations (gripes) out of all of this:
    1 - As everyone else has noted, the HV range software has a serious bug that needs repair. (I kept thinking of fuel range algorithms on over-water aircraft.)
    2 - The GPS shows 2 very different distances: One when you pick a saved destination and a much longer correct one when you actually start to navigate. I figure that this is a user error on my part which will get repaired when I read more of the navigation manual.
     
  20. Kendalf

    Kendalf Active Member

    I've heard something like it. Mine seems to come from the B pillar (by my ears) rather than the mirror, though I haven't had opportunity to really try to pinpoint. Compared to my previous car it is very minor noise, and only noticeable because of how quiet everything else is while driving!
     
  21. loomis2

    loomis2 Well-Known Member

    Here's an issue I haven't really heard discussed yet: when I call my wife while she is driving the Clarity with the heater on, the fan noise on my end is really noticeable and makes it difficult to hear her properly. She has to turn the fan down manually to have a conversation.
     
  22. Ken7

    Ken7 Active Member

    We haven't had that issue. In fact, at this point, the Clarity has a better audible connection with my iPhone X than my Tesla. I and others Tesla owners are currently having an issue with the Iphobe X, where people hear a 'scratchiness' on the car side, yet we hear them fine. With the Clarity, both ends are fine. Tesla is going to issue a software fix.
     
  23. dstrauss

    dstrauss Well-Known Member

    @loomis no such interference here, but we don't use the fan that often - once April gets here (with the first 90's) I'll report back...
     

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