brugospals

Hi Tedvin, Glad to hear I'm not the only one going crazy due to the pulsing! I previously owned an Ecoride City from 2013, and the controller on that didn't seem to limit at 25km/h when the battery was fully charged. It gave assistance pretty much up to about 30km/h and tapered off: no pulsing. That bike got stolen, so I was quite surprised at the difference between that and the 2014 Ecoride City. I asked the shop in Gothenburg about it, but they said they had had to make some changes to the controller to better comply in with Swedish law. I asked them if it is possible to remove the limiter, but they said no. Of course, they aren't going to give the answers away, probably due to legal restrictions. If you, or someone else manages to solve the issue, please post back here - removing that limiter would make things much smoother... and faster

I've thought about this some more whilst I've been away, and will hold off with any modifications - at least until after the guarantee on the bike runs out... just in case! But thanks so much for your help and ideas - I will return to this thread in the future!

Thanks, I understand. I will source the resistor, follow your directions, and will report back once I have some results! I'm going away for a week today though but will do this as soon as I get back!

Ok. I don't have a meter unfortunately, but I wonder if it could be an idea to simply unplug one wire at a time, starting with the DSM you mention above, and see what happens?

I'm guessing that the motor sends signals back to the controller to say something like how many RPM it's doing, or, how many volts its using? I wonder if it is just a matter of finding the cable sending this info back to the controller, and disconnecting it on the circuit board? This would explain the pulsating feeling - going over and under the programmed limit - on flat ground at around 24 - 25km/h. Or am I way off here?

Ok - I haven't crossed anything out yet. I opened up the controller again and took a few more pictures. It's very hard to know exactly where everything goes, but I've managed to figure some things out. I made some notes on one of the pictures below. There doesn't seem to be any jumpers on the circuit board at all, except something that looks like a tiny single jumper (ie. it doesn't look like it is connecting to poles, rather, just a single pole with a piece of plastic slid down it). You can (almost) see it on the second image, between the light brown upright capacitior, and the white sockets (where my far left red arrow is pointing), but it is so tiny, I didn't dare to touch it. I'd need a pair of fine tweezers to get to it anyway. Does this help in any way?

Hi Kaare and d8veh, Thanks for your replies. Just got in after a long day out - about 35km on the bike as well...and still feel the pulsing motion kinda like sea-sickness! It's late now, but I will go down in the morning and take some more pictures and try to answer your questions d8veh about the markings on the wires and where they go to etc. I'll also try to short out the board with the battery disconnected Kaare, just in case Thanks - will report back tomorrow

No, the only external wires joined with black plastic connectors outside the controller is connection #1 (6 km/h no-pedalling throttle limiter), and the front and rear lights. This is the connection diagram. http://store.ecoride.se/EcoRidekopplingsschema2.pdf Connection #1, the 6km/h speed limiter, is for the throttle control only. Disconnecting that means that the bike will go up to 25 km/h without the need for pedalling. The 25 km/h limiter still kicks in though. So I keep these plugs connected, as not pedalling up a hill at 25 km/h looks suspicious... Basically, I want to remove the 25km/h limiter because the bike really pulses when cykling on flat ground around the limit. The motor kicks in and out, and it's very annoying over longer distances. Any other suggestions?

Hi again, I opened up my controller today but couldn't see the "enactment" pin. The board is tiny as you know, and feels quite fragile so I didn't dare to poke about too much or start crossing out connections, just in case... The model number is similar however. Yours seems to be LSW70A6G whilst mine seems to have an extension of this: LSW70A6G-V02-13083 The bike is an Ecoride. The motor is a standard 250w brushless 8Fun hub motor and battery is 36v 10Ah - all Chinese of course. Are you able to locate the "enactment" pins in these photographs?

Hi Kaare, Great post - thanks for the info! I'll check my controller tomorrow. Out of interest, what brand is your bike? EcoRide? (Swedish/Chinese). Mvh from Sweden