ERider 8000W scooter - Australia (similar to xm5000li)

Update: 3877.6km

I rode into work today fairly quickly because I was a little late and here are the stats off the Cycle Analyst

Voltage: 79.5v
Ah used: 4.853Ah
W/h used: 406.05
Wh/km: 62.5
Regen: 9.3%
Regen Ah: 0.4525Ah
Amin: -60.8A
Amax: 160.6A
Vmin: 74.7v
Max speed: 78kmh
Avg speed: 46kmh
Time: 7m 46s

Battery cycles: 118
Total Ah used: 3240Ah

Hmm. So the CHL cells seem to be happy. I remember my temporary scooter with Thundersky cells sagging to 66v under just 85A. Now you can see why I'm loving these CHL cells. That data is just coming into work. I have about a 30km ride to do after work so that should give some more insight for you. When riding, I NEVER see more than 110A so that 160A must be for a split second. Oh I didn't list the km travelled...Oops. I'll post my readings tonight after work but 9% regen sounds pretty good to me.

Yes,it is very confused,Mr Laurent bought one of my scooter and another 2 motor,2 sevcon controllers in France,he exchanged all motors and all controllers and 5 throttle,all kind of exchange and all kind of testing,but diagnosis still flash 11 times,each motor have 2 sets 6pcs of hall sensors,it can't be all broken,anyone here could help us ?

Hi Mountain,

Yes I've had a few messages with Laurent and it sounds like you need to get back to basics.

* Connect the battery to the Sevcon controller (directly, no switches etc)
* Connect throttle cable and hall sensor cables
* Connect Phase wires to motor

Disconnect everything else like DC/DC converter, lights, blinkers etc etc UNTIL you find the fault

I DOUBT you could have 2 faulty motors and 2 faulty controllers. I would be surprised if his 12v DC/DC converter has gone faulty and is feeding a low voltage into the controller somewhere.

If Mountain has sent a NEW motor AND controller that HE TESTED and it doesn't work for Laurent then it will be something else in the electrical system. I would suggest measuring the voltage going to the hall sensors, it should be 5v directly from the controller, then make sure 5v comes out of each hall sensor when you spin the wheel.

I too had this 11 flashing problem once when I just got home, went over a small bump and the bike stopped with 11 flashes. I blew 1 set of hall sensors in my motor. I was told that 11 flashes means 12v from my DC/DC converter had somehow bypassed the controller and fed 12v into the hall sensors. To this day I don't know how/why it happened but it has never happened since.

I notice the standard 12v DC/DC converter can only output 10.5v with headlights on so it's a low end unit to start with. My 400w 13.8v DC/DC converter has been happy driving two 35w HID lights and still puts out a steady 13.8v even at 110w (during warm up), hence my bright headlights. But all my blinkers, horn, brake lights are still run off the standard 12v DC/DC converter so they are all a little weak.

I got a set of 150,000mcd LED blinkers for Christmas and even at 10.5v they are EXTREMELY bright for a 1cm wide blinker! They have orange CREE LED's inside

Update: 3914.1km

Went to the shops after work and here are the stats off the Cycle Analyst

Voltage: 78.7v
Distance: 42.8km (46.8km on dashboard)
Ah used: 30.97Ah
W/h used: 2571.0
Wh/km: 55.4
Regen: 8.6%
Regen Ah: 2.6731Ah
Amin: -76.1A
Amax: 165.5A
Vmin: 74.1v
Max speed: 85.1kmh
Avg speed: 50.6kmh
Time: 50m 40s

Battery cycles: 118
Total Ah used: 3269Ah

Well I've been stuck traveling all around Australia for work so haven't had much time on the scooter. But today I am happy to announce I have passed 4000km!! The bike works just as good as it did on the delivery date! There are a few broken plastic connectors (bad design) but apart from that it is still going great!!

I've got a whole heap of things to do today as I've booked a trip to China for a week!! Going to a city called Guangzhou for a wedding.

So today will be a good test of the scooter running all around town. Even my wife has full confidence in her bike. Car parking has gone up to $9 a day at work, free for scooters so I smile a little more each day.

Monday I'm being sent to Perth (3500km) for work all week so again I can ride my bike.

Seeya!!

Update: 4208.2km
After being away for work for so long I went for a 11pm ride and here are the stats off the Cycle Analyst
Voltage: 77.6v
Distance: 60.26km (66.2km on dashboard)
Ah used: 40.15Ah
W/h used: 3312.1wh
Wh/km: 51.1
Regen: 7.6%
Regen Ah: 3.0784 Ah
Amin: -49.8A
Amax: 167.7A
Vmin: 71.8v
Max speed: 85.1kmh
Avg speed: 50.9kmh
Time: 1h 10m 57s
Battery cycles: 127
Total Ah used: 3526Ah

I installed the power meter on December 19th at 3441.7km and in that 193.4km I have used $2.26 of power (15.1c/kWh), so that's about 1.17c per Km or $11.67 per 1000km

I got the power bill today and it is $35 LESS than our last bill. So I am resetting the bikes power meter today.

4312.8km
$9.53 in power used

That's 871.1km for $9.53. Not that good as its above 1c per km. but still better than petrol I guess.

Today I reset the power meter at 4312.8km

Just an update on the scooter. I've now passed 4500km but I had my first problem on my way into work yesterday. After just 1km from home on a full charge I stopped at a red light. When the light went green I gave a lot of throttle and the bike made a clunk and stalled? I turned the bike off and on again and off she went. I have been trying my hardest to make it do the problem again but it just won't fail. I know from experience that the fault was caused by a hall sensor. Off a full charge there has always been noises from the hub like the hall sensors are not quite aligned correctly but it has never been an issue. I have built about 5 electric bicycles and I have never had this problem, but all my ebikes used a square wave PWM speed controller. This Sevcon is a sine wave PWM speed controller which is why there is ZERO sound from it at low speed, no electric groan.

Anyway so I've put it down to just being a one off. I can't really complain, over 4500km and this is the only time I have lost power while driving. I've stalled my wife's Barina more than that ;-)

My wife loves my HID headlights so we have ordered another set for her. The low beam shutters seem to block just a little bit too much light but they are still very good lights, very bright, reliable, and not one person has flashed me because it has that sharp cut-off line for low-beam.

My CHL batteries are still finishing their charge with around an extra 0.4Ah and still only sag to 74 or 73.5v even when I hammer the bike with 115Amps. Yesterday while trying to re-produce the fault, I found the steepest hill (25°) stopped on it, then blasted to full throttle from 0, it went up the hill fine. I only saw 110-115A but the Cycle analyst recorded a peak of 186Amps and a minimum voltage of 73.5v. I just find that very good.

I see there is someone else here with a XM-4000 with 7000 miles (11,200km). Wow!! That is very good, I sure hope I can get that, and the way things are going, I'm confident I will.

And by the way, a link to your youtube video "Erider 8000w Scooter around Canberra" is very prominently posted on erider Australia's main page - you should get some royalties from them :-)

Is it?!?! Cool! I'll have to check out their website...

I'm not worried about royalties, Eric has bent over backwards whenever I've asked him things about the bike, plus I'd like more people to go electric.

As for the 'stall' I think I must have had the wheel inbetween hall sensors in a one in a million chance.

As for you getting down to 62.5v!!! There is NO WAY I would try that without a BMS. You are correct, My 24 CHL batteries do NOT have a BMS yet. I email CHL Battery asking for progress but no reply yet. The most damage I have done so far (public holiday so shopping center was closed so I couldn't re-charge) to the cells was an 80.2km ride which used 44.3Ah and my resting voltage was 77.5v which is the lowest I've ever seen it. But under 100 to 110Amps the voltage sagged to 71v or so and I made a point of not using full throttle until I got home, I even slowed to 50km/h just to make sure I could get home. I have NEVER seen a voltage below 70v while riding under ANY circumstances yet, even riding up at 35° hill!! The scooters are rated for only a 30° incline but there is a section in Canberra that has a 35° incline and my top speed was around 25 to 30 km/h for 1.8km to the top. I made it up, but all the REGEN coming down overheated the motor so I let it cool for a few minutes. My wife (a lot lighter than me) didn't have a problem with her scooter.

My wife just passed 1000km on her bike and hasn't had a thing go wrong. The only mod on her bike is LED blinkers. But she has ordered some HID lights same as mine so I'll have to find a DC/DC converter or try using the an old computer power supply.

And by the way, a link to your youtube video "Erider 8000w Scooter around Canberra" is very prominently posted on erider Australia's main page - you should get some royalties from them :-)

It must have gone because I can't see it??
Are you talking about this site?

www.erider.com.au

Oh yes. I had to hit SHIFT+Refresh in windows explorer.

I took that photo of the red scooter. Notice the RED 'muffler guard' that is the 5000w loan scooter. I sent erider a bunch of photos for him to use. I'm even making a whole new user manual in VERY good english, and I may even be able to publish it to apple's iBooks for free

UPDATE: HID Lights have been installed on my wife's scooter on 3 March 2012 at 1264km

They are being powered by a second 120w DC/DC converter exactly the same modem as the original one. As it turns out, I didn't need a big 400w DC converter after all. Oh well. My wife wanted Blue halo lights to match her blue scooter. The lights are much better than the stock ones by a LOT!!!

OK, so I am going to go for a cruise after work today. This will bring up 5000km on my Erider Electric scooter. I must say all in all I'm pretty impressed with the scooter, I must say I've been equally impressed with the after sales support from Erider in Melbourne! Apart from a few hic-cups this bike has been pretty much plug 'n' play. This prevented me spending around $450+ in petrol for the gas guzzling prius. But after riding electric, it's not about the cost savings anymore, it's actually a smoother and nicer ride than a ICE vehicle. I'm not sure if I have an EV Grin or an ICE frown.

Either way I am LOVING the electric scooter.

Nice to hear Phil :-)

Thanks!

with currently 4320km on the clock.

Cool!!

My dealer is going to quit soon and move back home

Ah bugger!!

Wish me luck :-)

Good luck, and fingers crossed. The motorcycle shops here in Canberra are scared of electric scooters so they flat out refuse to work on them, even to adjust the brakes. Yes that's you CANBERRA MOTORCYCLE CENTER!! Move with the times you DINOSAURS

The high current shunts that go with the Cycle Analyst have big M8 bolts for connecting the negative battery lead and whatever branches off of there. Does your PDT spec scooter have those bigger ring terminals, or do they have the same M6 size ones like in my Thunder?

I don't know, I guess it has the same M6 bolts, I just cut the battery NEGATIVE cable and put on two M8 ring terminals and bolted straight to the shunt. I used high temp silver solder so it could handle the heat, as it turned out, the wire barely gets 30°c after a long ride.

Where did you connect the shunt to, and did you have to change the ring terminals?

I connected the shunt (about 13cm long) to the metal tubing that makes up the seat bucket. I cut the original negative wire and put on two M8 ring terminals for the shunt.

And I have another (small) video request: you once made a short video of your borrowed Lightning on the main stand, accelerating the motor a few times at full "throttle". Could you make another one just like that with your 5000km PDT Lightning? Including regen decceleration once? I'm just curious as to the audible difference of trapezoid to sine commutation, or if a squeaking disc brake will be the loudest thing :-)

No problem, I should be able to do that tonight because my axle nut has come loose again and is making the clink noise again. So I'll make the video while I have the side guards off. I might put on some lok-tite to see if that stops the nut coming loose.

As requested here is a small video I made suring my lunch break. I had to take the sides off to tighten the axle nuts again so I made a quick video with my iphone.

http://www.youtube.com/watch?v=BjxrAukfwBg&feature=plcp&context=C36440b1UDOEgsToPDskLyXp7b6IywrQW0PfbJwgEw