Chicago IL to San Diego, CA Prius PHEV Adventure

Discussion in 'Toyota Prius Family' started by xcel, Apr 4, 2013.

  1. priusCpilot

    priusCpilot George

    Hi Wayne!

    Is charge depletion mode for the plug in or is that the system were the HSD cycles the battery on its own?

    I if it was me I would be using Top Tier fuel in my baby!

    TOP TIER Gasoline Retailers:
    USA Canada
    76 Stations Chevron Canada
    Aloha Petroleum Esso
    Chevron Petro-Canada
    Conoco Shell Canada
    Entec Stations
    Hawaii Fueling Network (HFN)
    Holiday Stationstores, Inc.
    Kwik Trip / Kwik Star
    MFA Oil Co.
    Mileage Stations
    Ohana Fuels
    Phillips 66
    Quik Trip
    Rebel Oil
    Road Ranger
    Severson Oil
    Tri-Par Oil Co.
    U.S. Oil

    Also I ran oil sample reports on my C back at 1000k and 5000k and 10,000k miles and the original oil held up well so I would leave it in, in case you want to change it early? I have also been told factory oil has break in additives you want to keep. Almost no wear metals and the Toyota 0-20W Synthetic is one of t best oils! Many good reviews on it the bob is the oil guy site!
  2. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Just helping out...

    charge depletion mode - use up the bulk of the available
    battery capacity

    charge sustaining mode - maintain the available charge
    in the battery

    For Toyota, the latter is the HSD mode that we're used to
    in the hybrids. What's nice is that the PiP will allow you to
    select charge depletion or charge sustaining mode at any
    battery state of charge, until the battery's too low to allow
    charge depletion mode. So, you can save the battery for
    when you wish to run more EV mode up to 62 mph or so,
    but probably better used around stop & go traffic.

  3. priusCpilot

    priusCpilot George

    Oh thanks Bill! I wish I could do that with my C when I know im going to go down a long grade! I sometimes wish I can dump all the power out while going at speed and not below 25mph using the EV mode button.
  4. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Hi priusCpilot,

    I hear you on the higher speed dump. Nice in the PiP and probably
    even nicer in the Energi(s). But as I mentioned elsewhere, that higher
    speed engine off capability can be used for higher speed glides as

    Is the threshold that low? (25 mph) I thought it was a little higher
    than that with a light foot, maybe 35-40, just letting the HSD do its
    autoEV thing? I haven't driven the C, though, just the gen3 hatch.

  5. priusCpilot

    priusCpilot George

    The 25mph limit is when the EV mode switch is engaged in order to keep EV locked in. If you do it manually with a light foot, then it goes to up to 43 MPH as long has you stay below the half way mark on the HS meter but you can't climb with that light foot up the grades.

    When you uses the EV switch is let me go past the half way mark under the right conditions and gives more EV power. I wish I can get max power locked in until the pack is at the min safe limit. Then the long grade down fill it up hehe.

    Thankfully this is not a common occurrence.
  6. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Hills really suck the life out of me, and the batteries...

    I guess you're stuck keeping off the pack and staying with the tried
    and true hill climbing techniques watching LOD and allowing speed
    to bleed away. I usually let the ICE power the hill climbs, except
    for when I'm 200' from home and climbing the final hill. I try to
    have room in the pack for regen when I leave home/the_hill.

    Last edited: Apr 6, 2013
  7. ALS

    ALS Super Moderator Staff Member


    I did when I used a plastic can but not with the metal Eagle Safety cans. :)

    In fact I used a plastic can for one trip to Fl. and gave it to one of my employees when I got back. It was a worthless piece of garbage in my opinion. You get what you pay for when it comes to gas can quality. If I was running a Prius across country like Wayne I would have taken one of the two gallon Eagle Safety cans with me. Knowing I had an extra 100 miles of gas with me, is worth the cost of the can.

  8. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    Day 3 -- Chicago IL to San Diego, CA Prius PHEV Adventure continued

    441, 504, 609 miles out -- 64, 65, 66 mpg and 59, 58 and 55 mph average speed. The last aFCD pic was taken a few minutes ago…

    In San Diego, CA.​

  9. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Welcome to your new home(?), PiP. Congrats on the journey, Wayne.
    Nice finish.

  10. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Bill:


    I wish it was my new home. I have to drive the 03 Corolla back later this week :(

    A lot more details to disclose of course. Your strategy for "EV Later" was used a lot on this drive once I had reached the Rockies all the way to the West Coast.

  11. ALS

    ALS Super Moderator Staff Member

    Hi Wayne,

    How soon for the ride back? A trip over 2K miles is hard to start with out throwing in a return trip with in a few days. BTW with the higher speeds you did very well with fuel mileage in the Prius.

  12. EdwinTheMagnificent

    EdwinTheMagnificent Legend In His Mind

    That strategy seemed to have paid dividends , Wayne. Very nice numbers for such high average speeds.
  13. F8L

    F8L Well-Known Member

    Nice work, Wayne!

    The EV later option is quite nice. It really helps you feel better about those poorly executed stops where you came in way too hot. I find that if traffic is heavy and I am forced to glide less that I am at least recovering and storing energy for later use.

    For those who don't know how it works, you simply build up EV miles while in HV mode and going down a steep hill or coming to a hard stop. Then switch to EV Mode for a moment then switch back to HV mode. This will allow you to build up EV miles that you normally wouldn't be able to get without plugging in.
  14. ksstathead

    ksstathead Moderator

    Congrats, Wayne, on a great trip. Look forward to your write-up after tax season.

    My new bicycle shipped today from Oregon, so I'll have new wheels next week as well!

  15. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Al:

    Probably heading back this weekend? I was also happy with the overall results of the 13 Prius PHEV out on the highway. It saved quite a few $'s in transport.

    Edwin, thanks.

    F8L, indeed! Locking in .1 or .2 miles of EV left for the next higher speed downhill glide (< 63 mph) is a godsend. With.1 or .2 miles of EV left but in std. HEV mode, the Prius PHEV would draw into it but would bring it back without needing a lengthy downhill with relatively hard regen to get it back.

    This proved to be very useful and I exploited the PHEV “Feature” again and again in the mountainous elevations of the west.

    Glen, nice to see your no fuel use exploits on the bike continuing :)

    Some thoughts… Coming out of the Eisenhower tunnel was an interesting test experience. With a very steep 5 to 7% grade descent over 7 miles, I took a 1 bar from full charge sustaining mode pack to 7.3 miles of indicated all-electric range in just 6 to 7 minutes. Given the Prius PHEV was taking in ~ 3.7 kWh at the plug for a charge from empty to full (13.3 miles range indicated) in approximately 2.75 hours or a little less than half that on a Level2, I added approximately 2 kWh of power in just 6 to 7 minutes. To get this level of range added, I actually rode the brakes (regen only) with .5 to .75 of the charge bar filled for the entire descent.

    The high C-rates are not/would not be good for long term pack longevity.

    On another 6 miles 5% grade descent in Utah, I only allowed the std. regen (let off the accelerator and do not touch the brakes) and saw EV range from 1 bar from full charge sustaining mode go to 3.2 miles of EV range back. That is still high but about half of a forced braking regen from the Eisenhower tunnel descent.

    Fortunately few will be running the Eisenhower tunnel ascent and descent on a daily basis.

    What about climbing with some charge depletion mode left? After the 7 mile descent out of the Eisenhower tunnel and 7.3 EV miles indicated, there was an ~ 2 mile steep ascent. During that 2 mile ascent, the indicated EV range went from 7.3 miles to just 3.3 miles. In other words, Heavy regen is still hugely lossy but it is better than what a std. Hybrid would have offered by a long shot.

    I have one more pic to take with even more interesting conclusions about what the PHEV offers but that will have to wait until possibly tomorrow.

    Today was the first time Marian took the Prius PHEV to work. I set her phone and all the apps up and gave her the basics of what she needed to do. I did not charge it yet but I wanted a baseline. She achieved approximately 46 mpg actual for her RT w/out any PHEV charge assisting.

    I asked her a few weeks ago about her work location having a free charging station and she said she did not know. While she was talking about her new car at lunch today, one of her coworkers pointed out that Life Technologies has 4 Level2 charging stations located just 10 parking spots from where she has been parking for over 6-months!

    I setup the plug in her garage space and verified again that she cannot take off with the charge plug still attached. She cannot as a message appears in the MFD and you cannot shift to D. In any case, her 40-miles daily round trip commute should be achieved with ~ 50% on the plug and 50% at 45 or so mpg.

    We’ll have to see as she knows little about gliding to a red light, holding EV between two lights, how to accelerate downhill under EV before a glide or even keeping below 63 mph steadily in order to consume that 11 miles of range instead of the 45 to 70 with heavy acceleration and engine on time, and back to 45 (and repeat this insane activity like everybody else does). Time to teach her how to do this right all over again :rolleyes:

  16. bestmapman

    bestmapman Fighting untruth and misinformation

    So your leaving the car in CA? What will you be driving in Chicago, since I saw somewhere that you no longer have the Accord.
  17. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Nice observations, Wayne.

    I'm doing an hour level 2 charging before work. There's nothing available at work.

    re: high charge rate - it's probably comparable to a high speed DC charger, but on a smaller battery so truly higher c. But then one would think Toyota has factored that in. The charge acceptance rate does drop off close to a full pack.

    Good luck on the return trip,
    Last edited: Apr 10, 2013
  18. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Jud:

    I will probably be driving the old Corolla back home later this week.

    Bill, thanks and you have certainly helped in this thread while I was on the road last week. Are you achieving close to the 11 miles all-electric range from the 13.3 miles indicated after a charge? That range was not a slam dunk for me to achieve in 30 degree temps at home let alone most and I bet 11 miles would be tough too with any kind of hills?


  19. BillLin

    BillLin MASS: 2018 Bolt EV and 2017 Prime

    Sadly, I don't get to drive the PiP as a daily driver. We'd only gas up for
    Chicago trips. No, I get to drive a BEV. My wife and I should switch cars, but
    she's very attached to *her* PiP. I don't believe she's achieving the 11 miles
    AER; she tends to call on the engine too soon so it's too hard to go back and
    figure how much was electric. She just treats the PiP as a regular hybrid that
    gets above average tank mpgs.

    Last edited: Apr 10, 2013
  20. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Bill:

    You have the best of both worlds :)

    Marian drove the 20 miles to work and said her 11-miles ran out about 2 miles from work. Meaning she was running the ICE a lot during her commute but at least she consumed the pack.

    The bad news is the 4 chargers at her workplace are Blink network units and its $1.00/hour as a subscriber ($2.00 for her to charge the Prius PHEV to full from empty) and even more as a guest. That costs a lot more than the $0.80 to $0.90 of gasoline to cover the 10 miles of all electric range :( :( :( I told her forget about plugging in at work :ccry:


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