TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Exactly How Strong is the Regen?

Discussion in 'Model 3' started by ZeApelido, Jan 6, 2018.

Tags:
  1. simonog

    simonog Member

    Joined:
    Jan 9, 2014
    Messages:
    419
    Location:
    United Kingdom
    Well said. I try to teach people that the accelerator is not like a binary light switch ie on or off, but is rather like a volume control and entirely progressive. Most people then get it.
     
    • Like x 2
  2. david_42

    david_42 Member

    Joined:
    Oct 30, 2006
    Messages:
    420
    Location:
    South of Portland, OR
    My wife is very sensitive to back and forth acceleration when she is a passenger. I suspect strong regen with TACC on would have her hanging out the window. Having regen-only initial braking, on the other hand, makes sense and should only be limited by hardware.
     
    • Informative x 1
  3. ELECTRIC4ME

    ELECTRIC4ME Member

    Joined:
    Nov 18, 2017
    Messages:
    29
    Location:
    SF Bay Area
    This discussion is in regards to the 2018 LEAF which has much stronger regen, and one-pedal driving all the way to a stop.

    One thing to keep in mind regarding the low speed regen in these cars, is that the LEAF and Bolt EV both use blended braking, whereas the Tesla cars don't. At low speed the LEAF and Bolt will gradually switch to friction braking to bring the car to a stop and in Teslas you have to use the brake pedal.
     
    • Like x 1
  4. Futuresystem

    Futuresystem Member

    Joined:
    Dec 22, 2017
    Messages:
    55
    Location:
    Brisbane, Australia
    Once you get used to regen, you will HATE, and I really do mean HATE driving a vehicle without it.

    At a subconscious level it even makes driving in heavy stop start traffic (which we all hate) a bit more pleasurable, as all that deceleration energy is going back to the battery rather than just heating (and wearing) your brakes.

    Cya
     
    • Like x 2
  5. Futuresystem

    Futuresystem Member

    Joined:
    Dec 22, 2017
    Messages:
    55
    Location:
    Brisbane, Australia

    I did a full weekend of driving, hundreds of kilometres in a 2017 model S 100D on everything from quiet country and city roads to very heavy and at times stop/start freeway traffic. If you turn "creep" off in the Model S, you don't need to use the brake pedal at all to pull up (obviously excepting for a hard stop.)

    Cya
     
  6. roblab

    roblab Active Member

    Joined:
    Jul 15, 2008
    Messages:
    2,960
    Location:
    Angwin (Napa Valley) CA
    It's like taking your foot off the accelerator pedal on a gas car. It slows down. It does NOT throw you through the window. I am assuming your wife has been in a gas car before, slowing to a stop. Also, as you have read, it is controllable with your foot. I guess we could compare it to the brake pedal: Full on is disconcerting.
     
  7. insaneoctane

    insaneoctane Active Member

    Joined:
    Apr 6, 2016
    Messages:
    2,423
    Location:
    Southern California
    Tesla currently has 2 settings for regen (low and standard). I'd like to see a least one more setting above that (low, standard, high) and ideally, just give me a slider with high on one side, low on the other with standard somewhere in the middle. I'd like high to be 10% or 20% more than standard it is now. Then you could just find your preference. Telsa could deliver the car with the slider set to standard. Then the regen fans could dial it up because they can handle it ;)
     
    • Like x 3
  8. Futuresystem

    Futuresystem Member

    Joined:
    Dec 22, 2017
    Messages:
    55
    Location:
    Brisbane, Australia
    I TOTALLY agree.
    More settings, preferably a minimum of three but infinite via a slider would be better still.

    Pleeeaaase Mr Tesla!

    I often change the settings (with 5 available via flappy paddle) for different roads in our PHEV. What suits one road, is not so nice on a different style of road, or driving.
     
    • Like x 1
  9. Oil Freedom

    Oil Freedom Member

    Joined:
    Nov 10, 2017
    Messages:
    36
    Location:
    San Diego, CA
    I strongly agree too!

    My 2011 LEAF has two regen/performance/power settings: Regular Drive (default) and Eco. The regen in Eco is good, but the regular Drive is too weak. I'd like there to be an option for even more regen (throw on the brake lights if needed when I take my foot off the power pedal). I always drive in Eco (mostly for the better regen) but unfortunately you can't set it to be the default, so I've always got to put the car into Eco mode each time I turn the car on.

    It would be great if Tesla had a selectable and really wide range of regen available to meet everyone's preference. It should stay on your preferred setting from drive to drive until you change it.

    More regen = easier driving (much less foot action between pedals) and less wear on the conventional brakes.

    I'm so used to having regen and really prefer it, that I truly miss it in ICE rental cars (among a long list of other things I prefer about driving electric).
     
  10. scottf200

    scottf200 Active Member

    Joined:
    Feb 3, 2013
    Messages:
    2,246
    Location:
    Chicagoland ModelX S603
    It appears that the Model 3 is 'Low' or High'. For those wanting strong regen why not send their support an email and ask them to pass it on?!? And/Or Tweet @elonmusk. Some version of the below perhaps.
    >>
    Why not have more control over Model 3 regen? (addition Max regen). One of the most common complaints when comparing to some other EVs (Bolt, LEAF, etc)
    Virtually all the discussions, articles, podcast, interviews, etc with Model 3 owners and reviewers about regen that have also driven the Bolt talk about how much better (more) they appreciate the Bolts stronger level. Why not add another option to the Model 3? Low, High, & 'Max' (or 'Aggressive')
    <<<
     
  11. eMotionRentals

    Joined:
    May 12, 2016
    Messages:
    18
    Location:
    Takoma Park, MD
    What????? Nissan and Chevy are more advanced than Tesla???? That's crazy talk! ;)
     
  12. Randy Spencer

    Randy Spencer Active Member

    Joined:
    Mar 31, 2016
    Messages:
    1,288
    Location:
    Alameda, CA
    Or is it crazy to use the brakes w/o touching the brake pedal?

    -Randy
     
  13. scaesare

    scaesare Well-Known Member

    Joined:
    Mar 14, 2013
    Messages:
    6,958
    Location:
    NoVA
    Technically it's kinetic energy dependent. On level ground, this equates to being speed dependent.

    But it's possible to generate more regen at a given speed going down a grade than you would at that same speed on level ground. Or heck you can even generate more regen at a slower speed if the grade is sufficient.
     
    • Like x 1
  14. scaesare

    scaesare Well-Known Member

    Joined:
    Mar 14, 2013
    Messages:
    6,958
    Location:
    NoVA
    The release notes for one firmware update actually included increased regen for some models, and the discussion afterward here seemed to agree that it was for AWD models. I know that I didn't notice any change after that on my RWD S whereas a friend with an AWD car did.
     
  15. scaesare

    scaesare Well-Known Member

    Joined:
    Mar 14, 2013
    Messages:
    6,958
    Location:
    NoVA
    It's beautiful. Especially if you've driven a manual.
     
    • Like x 1
  16. insaneoctane

    insaneoctane Active Member

    Joined:
    Apr 6, 2016
    Messages:
    2,423
    Location:
    Southern California
    Having driven a vehicle with blended brakes, it is smooth and easy.... On the other hand, as someone who wants to maximize efficiency, not knowing how hard I can brake only using regenerative capability is frustrating and fully rectified by the way tesla does it..... Tesla's method also has the added benefit of allowing the driver to know when and how to occasionally use the friction brakes to maintain that system.
     
    • Love x 1
  17. Oil Freedom

    Oil Freedom Member

    Joined:
    Nov 10, 2017
    Messages:
    36
    Location:
    San Diego, CA
    Passengers complaining about regen seems odd to me since pressing the brake pedal can slow the car more aggressively than regen. Do your passengers also hate it when you apply the brakes? Maybe they just prefer accidents, because I think regen is gentler than braking. I might select different passengers or make duct tape available in case they complain about (of all things) regen. ;) "Sit down, shut up, and hold on!"
     
    • Funny x 1
  18. Oil Freedom

    Oil Freedom Member

    Joined:
    Nov 10, 2017
    Messages:
    36
    Location:
    San Diego, CA
    Thanks to a generous colleague who got his M3 last week, I finally got to drive a M3! I'm very happy to report that its regen is better (read: stronger) than my 2011 LEAF in Eco mode (its stronger regen setting). From everything I had read, and the fact that the LEAF is front wheel drive vs. rear wheel drive, I had been a little bummed that regen might be a little weaker in the M3. NOPE!!!

    The M3's regen is wonderfully more pronounced and at the perfect level -- just what I wanted. It's also really smooth and easy to modulate via the power pedal. Getting to adjust it via the user interface would be ideal to match different driver preferences, but I'm very pleased with the regen as-is. The M3's better regen vs. the LEAF's probably is partly due to the M3's larger motor.

    More and better one pedal here I come!!!
     
    • Helpful x 1
  19. etmax

    etmax Member

    Joined:
    May 9, 2017
    Messages:
    26
    Location:
    Australia
    You already have a continuous setting, it's called the accelerator pedal. Back off slowly and get very little regen, back off fast and you get a lot.
     
    • Like x 2
  20. etmax

    etmax Member

    Joined:
    May 9, 2017
    Messages:
    26
    Location:
    Australia
    We have a 550m high hill near our place that has lovely winding roads though beautiful country. The road to the top is about 30km.
    I drove up there and noted that my average usage was around 240whr per km. After a a nice coffee at the top I drove back down the same way. The total trip average was 170Whr per km which is the same as my normal off peak commute to work and back with much less gradient. Why on earth would you want less regen? How could you have more? Basically it is between 95% and 100% efficient. Several dozen trips will be needed to determine the average number to greater accuracy.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC