1. Attachments are working again! Check out this thread for more details and to report any other bugs.

On the brakes light and early

Discussion in 'Gen 4 Prius Fuel Economy' started by KV55, May 4, 2018.

Tags:
  1. KV55

    KV55 Member

    Joined:
    Feb 1, 2007
    126
    43
    0
    Location:
    Northamptonshire, UK
    Vehicle:
    2017 Prius
    Model:
    Excel
    I am finding the Gen4 to be very different to the Gen2 and the Gen4 certainly likes to use the battery, this results in a low state of charge in urban areas (20 and 30mph limits). I have started to concentrate on my braking swapping to a light touch and much earlier than I would normally, previously I would keep momentum and just let the car coast down effectively with my feet off the pedals until the brakes were needed. On the display I see the HSI dipping below the line but still above the dashed line and the yellow arrows feeding the battery. This gives me more regen and keeps the state of charge a bit higher than if I wasn't driving this way.
     
    #1 KV55, May 4, 2018
    RCO, krmcg and bisco like this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,003
    49,983
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    this is excellent technique if traffic allows.(y)
     
    #1 bisco, May 4, 2018
    krmcg likes this.
  3. goinskiing

    goinskiing Active Member

    Joined:
    Oct 13, 2014
    202
    187
    0
    Location:
    Meridian, ID, USA
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Advanced
    I'm finding the same thing and I think this is true of the NiMH vs. Li-ion. I had a Prius C back in the day that I would coast to a stop the same way. My '18 Two Eco charges much better when lightly pushing the breaks. Once I figured this out I had a nice little boost in city fuel economy by a couple MPGs.
     
    #1 goinskiing, May 4, 2018
    KV55 likes this.
  4. RCO

    RCO Senior Member

    Joined:
    Aug 31, 2016
    3,709
    5,184
    0
    Location:
    Cornwall
    Vehicle:
    Other Hybrid
    Model:
    N/A
    That's certainly the best way, though you don't have to worry about the better HV battery SOC...
    The car is perfectly capable of keeping it constantly in the optimum range without the driver's intervention. I'd shout to you, but don't think my voice would carry that far, so I'll just wave next time I'm paying on the M5. (y)
     
    #2 RCO, May 6, 2018
(You must log in or sign up to post here.)