Ø consider the robot 'cheetah' at 30 mph when an obstacle darts into its path.
They did that. The robot cheetah jumped over the obstacles. The movie was cute to watch as the human throwing objects and obstacles onto the treadmill was working harder than the robot cheetah was in missing them. Though the icing on the cake was at the end of the treadmill video when the cheetah blew a high pressure hydraulic line and spewed hydraulic fluid everywhere and was jerked off the treadmill (to avoid becoming a pile of junk at the wall)… There was another video of a free-ranging cheetah robot running at high speed across a field without **any** attachments (though not at 30 MPH). The treadmill cheetah had protective tethers and an external power source. The free-range cheetah was completely automonous with a motorcycle engine powering the hydraulics) Probably going 15 MPH or so. Bob *From:* Chris Tromley [mailto:ctrom...@gmail.com] *Sent:* Tuesday, November 04, 2014 11:30 AM *To:* Electric Vehicle Discussion List; Robert Bruninga *Subject:* Re: [EVDL] Lit EP4 self-balancing e-motorcycle (video) Recovering from an impact is a well-bounded problem. To appreciate what the C1 will have to deal with in the real world, consider the robot 'cheetah' at 30 mph when an obstacle darts into its path. Slow rapidly, bank hard left while still slowing, then while still rolling left, reverse to bank hard right. While still rolling right, reverse to hard left again but pull out as you approach upright to continue forward. Even with a human pilot to provide the inputs, overlapping compensations will drive these control systems nuts. It's a very real world out there, and Lit is so not ready for it. Chris On Nov 4, 2014 11:08 AM, "Robert Bruninga via EV" <ev@lists.evdl.org> wrote: Related to the image in the SUBJECT video (pulling the self-baqlancing vehicle sideways and it still remaining balanced)., yesterday I saw videos of the DARPA research on robots and it is AMAZING where they are at. They showed full 2 legged huminoid robots (with arms for balance) running across a field of rocks, bricks and debris! They showed 4 legged robots running at up to 30 MPH (Cheeta) They showed the 2 legged robot standing on one foot and being hit from the side with a wrecking ball mass at the legs and hips, and in all cases, MAINTAING its balance. It looked just like a human would, The reaction of the other leg and the torso and the 2 arms would conteract the de-stabilizing force and the robot would retain its balance on one foot! And they said, it actually does it better than a human (in the same test) because the robot has no "fear". Whereas the human would not stand for the whack from the side... Bob -----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Chris Tromley via EV Sent: Tuesday, November 04, 2014 9:44 AM To: brucedp5; Electric Vehicle Discussion List Subject: Re: [EVDL] Lit EP4 self-balancing e-motorcycle (video) Regarding previous motorcycle riding experience, that might actually be a hindrance. I had some detailed correspondence with the Lit spokesman some time back. I learned that the steer by wire approach was necessary due to the approach they would take regarding initiating a turn. It's an approach that conflicts with what any motorcyclist would do. So if you're a motorcyclist, check your reflexes at the door. Chris On Nov 4, 2014 6:12 AM, "brucedp5 via EV" <ev@lists.evdl.org> wrote: > > > [ref > > http://electric-vehicle-discussion-list.413529.n4.nabble.com/Lit-C1-do > es-the-slalom-and-now-has-a-tailgate-tp4672331.html > Lit C1 does the slalom and now has a tailgate ] > > In the above post, it gives: > [video > https://www.youtube.com/watch?v=PxTRox3Vt9E > The Future of Transportation > Danny Kim Nov 3, 2014 > Say hello to our new prototype EP4. Born Sept 1, 2014. > Think of it as the Lit Motors' version of the Wright brother's Flyer. > www.LitMotors.com > ] > > which shows Lit's latest electric-motorcycle prototype (note the > side-mounted wheels during its R&D period) being driven by a driver > that has never driven a motorcycle before (I'll assume she does not > have a CA motorcycle license either ... btw ?Is that an SF Presidio > parking lot in the background?). > > It also shows first an ice-motorcycle being knocked over using an > ice-van tugging at it with a long tie down strap (ouch! Hope the ice > e-cycle did not get too many dings). > > Then it showed that same knock-over attempt but with the Lit > e-motorcycle prototype. The e-cycle did not knock-over. The van tugged > at it, but only dragged the e-cycle sideways while it self-corrected staying upright. > > > ?Does this bring a whole new way of looking at 2wheel driving the CA > DMV is going to have to adjust for? > > Not unlike autonomous self-driving plugins (yes, they are going to be > sold sooner than you likely want to be), a self-balancing e-cycle > could open doors/opportunities to many 2wheel wannabe drivers that > previously could or would not learn to balance/drive on two wheels. > > As more and more technology comes into our lives, lets learn about it, > how it can help us, and at the same time keep ourselves on a > short-leash to keep from becoming one-with-the-Borg (everyone should > still know how to walk and chewy-gum at the same time on their own). > > > > > For EVLN posts use: > > http://www.evdl.org/archive/index.html#nabble+template%2FNamlServlet.j > tp%3Fmacro%3Dsearch_page%26node%3D413529%26query%3Devln+-re%26sort%3Dd > ate > > > {brucedp.150m.com} > ... > > https://www.google.com/search?q=SF+Presidio&source=lnms&tbm=isch&sa=X&; > ei=oq5YVPqsDIunyQTtxIGoAg > SF Presidio > http://www.presidio.gov/map/PrintMaps/Main%20Post%20Parking%20Map.pdf > http://www.presidioparkway.org/gallery/ > ... > http://en.wikipedia.org/wiki/Borg_%28Star_Trek%29#Assimilation > Borg > > > > -- > View this message in context: > http://electric-vehicle-discussion-list.413529.n4.nabble.com/Lit-EP4-s > elf-balancing-e-motorcycle-video-tp4672337.html > Sent from the Electric Vehicle Discussion List mailing list archive at > Nabble.com. > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... 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