Likes Likes:  139
Dislikes Dislikes:  5
ELITE ELITE:  0
Page 12 of 17 FirstFirst ... 21011121314 ... LastLast
Results 111 to 120 of 168

Thread: Let's talk about e scooters

  1. #111
    Steve O's Avatar
    Steve O is offline I spend all day thinking about bikes and talking to people on the internet about them.
    Join Date
    May 2010
    Location
    Pentagon City in Arlington VA
    Posts
    4,721
    Post Thanks / Like

    Default

    Quote Originally Posted by wheels&wings View Post
    Leslie – very sorry to hear about this crash.
    E-scooters were the main topic of our Bicycle Advisory Committee this week. The representatives from Bolt and Lyme took part in the meeting and seemed genuinely concerned about making things safer. Do you have any idea which company the e-scooter was from? It’s worth giving them a call – they say they’re trying to be data-driven and to develop solutions and incentives to increase car-free transportation in a safe way. The numbers are on the Arlington Shared Mobility website, and you’ll also see a link to the survey that Arlington is doing on Shared Mobility Devices. Your input will be valuable.
    https://transportation.arlingtonva.u...ess-bikeshare/
    Sending hugs,
    w&w
    As w&w notes, it was an informative meeting. Minor correction: the representatives were from Lyft and Bolt. Lime was not there.

  2. Likes dasgeh, wheels&wings liked this post
  3. #112
    Join Date
    Dec 2015
    Location
    Arlington
    Posts
    1,555
    Post Thanks / Like

    Default

    The Post has an article up showing that, according to a poll, 1 in 6 D.C. residents ride e-scooters. So, while they may be unpopular to many who don't ride them, 16.66% seem to be having fun.

    https://www.washingtonpost.com/local...=.f1eff3c68adb

    I'd probably try one myself except I have bikes so don't need to.

  4. #113
    Join Date
    Jan 2012
    Location
    Madison Manor
    Posts
    1,185
    Post Thanks / Like

    Default

    As I've suggested to ArlCo, require the scooter companies to charge the last user of a scooter a fee ($25 or higher) if the scooter is picked up from a location that presents a non-minimal safety threat to others. I've often had almost the same encounter as Leslie with abandoned scooters in that area and others.

  5. Likes bentbike33 liked this post
  6. #114
    Join Date
    Jun 2011
    Posts
    4,237
    Post Thanks / Like

    Default

    Quote Originally Posted by sjclaeys View Post
    As I've suggested to ArlCo, require the scooter companies to charge the last user of a scooter a fee ($25 or higher) if the scooter is picked up from a location that presents a non-minimal safety threat to others. I've often had almost the same encounter as Leslie with abandoned scooters in that area and others.
    so if a kid moves your scooter you get a $25 bill?

  7. Likes Steve O liked this post
  8. #115
    Join Date
    Sep 2013
    Location
    Alexandria
    Posts
    818
    Post Thanks / Like

    Default

    Quote Originally Posted by mstone View Post
    so if a kid moves your scooter you get a $25 bill?
    Exactly. This is one of the big problems with dockless - it's virtually impossible to hold anyone accountable for bad parking or vandalism of the devices. Thus the obstructions and short service life.

  9. #116
    Join Date
    Sep 2013
    Location
    Alexandria
    Posts
    818
    Post Thanks / Like

    Default

    Quote Originally Posted by mstone View Post
    so if a kid moves your scooter you get a $25 bill?
    Or even if it's just knocked over by a raccoon. Totally reasonable.

  10. #117
    Join Date
    Jul 2012
    Location
    Arlington, VA
    Posts
    553
    Post Thanks / Like

    Default

    Hi. I have joined the party late...but do have a question about governors and max speeds on all these dockless scooters. My understanding is that the dockless ones are capped at a certain speed? I ask because I came across a young man on an e-scooter going SE on Maine Ave. a few nights ago. I am enroute to Ft. McNair to pick up Sue, running with traffic which is doing 30 (in a 25) and I am passed on driver's right by this scooter at speed. He pulls away, probably doing 35 or more, with a big lean as Maine bears left and becomes M St. What little I could see of his ride in the dark- definitely not a rental- had to be his own. A little larger, with a larger and beefier wheelset. No protective gear... and a truly burly Guardian Angel watchin' over him?

  11. #118
    Join Date
    May 2017
    Location
    Falls Church
    Posts
    45
    Post Thanks / Like

    Default

    The brushless motor controllers in the rental scooters are sophisticated and programmable by the company for capping top speed, acceleration, setting a charge rate to the battery management board, setting degree of regenerative braking and when it engages, whether the scooter needs to be rolling (and how fast) before the motor will engage, and more.
    There are high end e-scooters like the Nanrobot LS7 or RS11-11 that have huge range and go startlingly fast, at a premium price. That may be what you saw.
    Rip out ALL the circuitry on a 36v, 300W rental bike, wire in extra cells to boost the battery to 52V, put in your own BMS and generic 48V, 300 watt controller, and you can make the thing move pretty fast for under $30. Not that I would endorse doing such a thing! And it would be primitive, throttle-only... you would no longer have all the refinements, like regenerative braking. Plus you would be driving the motor pretty hard. It could reduce the service life of the hub motor.
    Last edited by phog; 06-07-2019 at 10:55 PM.

  12. Likes Starduster liked this post
  13. #119
    Join Date
    Mar 2014
    Location
    VA
    Posts
    432
    Post Thanks / Like

    Default

    Quote Originally Posted by phog View Post
    The brushless motor controllers in the rental scooters are sophisticated and programmable by the company for capping top speed, acceleration, setting a charge rate to the battery management board, setting degree of regenerative braking and when it engages, whether the scooter needs to be rolling (and how fast) before the motor will engage, and more.
    There are high end e-scooters like the Nanrobot LS7 or RS11-11 that have huge range and go startlingly fast, at a premium price. That may be what you saw.
    Rip out ALL the circuitry on a 36v, 300W rental bike, wire in extra cells to boost the battery to 52V, put in your own BMS and generic 48V, 300 watt controller, and you can make the thing move pretty fast for under $30. Not that I would endorse doing such a thing! And it would be primitive, throttle-only... you would no longer have all the refinements, like regenerative braking. Plus you would be driving the motor pretty hard. It could reduce the service life of the hub motor.
    He is probably using something like this open source control circuitry and software called VESC, which can be used to develop or test anything that use brushless motors(E-Scooter, E-Bike, etc.). You can buy it from Amazon here, it costs $90, but cheaper if you make it on your own, probably $20 to $50, but requires a huge learning curve, or hiring an engineering firm. The software talks to the hardware using USB, and can configure many parameters, and show realtime response, scroll down for screenshots.

  14. #120
    lordofthemark's Avatar
    lordofthemark is offline I really need to log off the internet and go for a ride.
    Join Date
    Jun 2012
    Location
    The forgotten corner of Alexandria, VA
    Posts
    3,265
    Post Thanks / Like

    Default

    Quote Originally Posted by peterw_diy View Post
    Exactly. This is one of the big problems with dockless - it's virtually impossible to hold anyone accountable for bad parking or vandalism of the devices. Thus the obstructions and short service life.
    They can geofence some areas, but that is limited by the accuracy of GPS.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •