Author Topic: Throttle modes?  (Read 9707 times)

0 Members and 4 Guests are viewing this topic.

OnlineLittle-Brit

  • Newbie
  • *
  • Posts: 7
    Re: Throttle modes?
    « Reply #30 on: 2016-03-26 22:48:47 »
    I think the answer is rather more simple.  I suspect that all three modes use the same fuel mapping, the suck - squeeze - bang - blow bit changes in response to temperature, altitude, power requirement etc, not mode setting.


    What is being changed is not the fuel map but the response rate of the throttle butterflies to the rate of twist grip rotation. 


    With a normal cable system turning the throttle half way opens the butterflies to their midway position and at the rate that you move at.


    In rain mode that 50% may only give you 30% and with possibly a slower opening rate than you are asking for.


    In road you get the 50% expected, pretty much when you expect it.


    In dynamic that 50% might give you say 70% throttle open and rather more quickly than a cable type would normally do.


    In all modes 100% throttle is achievable, it's just the getting there that is different.


    And you can certainly feel that difference when riding.


    Of course BMW also choose to alter the suspension, ABS and traction control settings too (although you can set them for your own preference).  It all seems to work very well and certainly suits my style of motorcycle use as I am happy to use all of the modes at various times depending on weather, journey and mood. I love it.   



    OfflinePope

    • Full Member
    • ***
    • Posts: 205
    • Country: gb
      Re: Throttle modes?
      « Reply #31 on: 2016-03-27 00:34:49 »

      Ok, its raining now, so in the interest of science, i'm gonna put her in Rain Mode for my ride home from work on shitty country B roads (no i haven't tried Rain Mode since the remap).


      So i'll report back later hopefully. BTW, i only ever tried Rain Mode once and it was horrible and laggy and unresponsive.


      Right, used Rain Mode for the ride home...and, its very different now. and i much much better, and i perfect for town/slippery roads.


      After the remap, there is hardly any of that nasty laggy throttle.  Its almost as responsive as Road Mode mode, but just a tad softer. Perfect for filtering, or greasy roads.


      I Think i'll be using this for gentle 2 up urban riding now.


      Remap.....approved.  ;)


       
      Garage: 2016 BMW R1200RTLE Iconic #26, 2016 Ducati Diavel Titanium, 2015 Ninja H2 missile, 2013 BMW 640d Ragtop, 2014 VeeDub T5 180 Sportline

      OfflineRusty-pie

      • Newbie
      • *
      • Posts: 42
      • Country: gb
        Re: Throttle modes?
        « Reply #32 on: 2016-03-27 23:12:18 »
        I think the answer is rather more simple. I suspect that all three modes use the same fuel mapping, the suck - squeeze - bang - blow bit changes in response to temperature, altitude, power requirement etc, not mode setting.
        What is being changed is not the fuel map but the response rate of the throttle butterflies to the rate of twist grip rotation.
        With a normal cable system turning the throttle half way opens the butterflies to their midway position and at the rate that you move at.
        In rain mode that 50% may only give you 30% and with possibly a slower opening rate than you are asking for.
        In road you get the 50% expected, pretty much when you expect it.
        In dynamic that 50% might give you say 70% throttle open and rather more quickly than a cable type would normally do.
        In all modes 100% throttle is achievable, it's just the getting there that is different.
        And you can certainly feel that difference when riding.
        Of course BMW also choose to alter the suspension, ABS and traction control settings too (although you can set them for your own preference). It all seems to work very well and certainly suits my style of motorcycle use as I am happy to use all of the modes at various times depending on weather, journey and mood. I love it.

        No it is not so. I did explicitly asked if the ratio between accelerator twist and throttle butterflies opening is also altered by the riding modes and the answer was a plain no, only the fuel map changes.

        Offlinecharliektm400exc

        • Newbie
        • *
        • Posts: 4
          Re: Throttle modes?
          « Reply #33 on: 2016-03-28 09:25:42 »
          No it is not so. I did explicitly asked if the ratio between accelerator twist and throttle butterflies opening is also altered by the riding modes and the answer was a plain no, only the fuel map changes.


          That's funny. I rode an RT at a BMW organised test ride week.  The BMW guy that was leading the ride specifically said dynamic mode adjusts the speed with which the throttle opens, and that the road and dynamic mode have exactly the same fuel maps.


          One of them must be wrong.

          OnlineLittle-Brit

          • Newbie
          • *
          • Posts: 7
            Re: Throttle modes?
            « Reply #34 on:Today at 18:03 »
            I'm very late to this party but just a quick comment on modes:


            As I understand it the maximum power output is the same in all modes it is merely the rate at which it is applied that changes; gradually in rain mode, proportionally in road mode and quick action style in dynamic mode. 


            The suspension, traction control and ABS all get tweaked too!