Welcome to my blog! This blog is about the conversion project of my quad bike from gas to fully electric. Every time there's some progress with the project you can find the updates here. On the page About you can read more information about myself and this project. All pictures and videos taken during this project can also be found seperately.
Posted on 15 November 2018 at 11:23 pm (CET)
Last week I had another ride which was actually the longest so far. I went to visit the company that helped making the aluminum parts (Geraets Metaalbewerking). I promised them a while ago already that I'd come there to show the quad bike but just never got around to it. But now was the time to finally do it.
Pretty much the whole ride was on Eco mode to make sure I could actually get there. I was a bit worried since the range of this quad bike is still pretty low at only 30-35 km (18-21 miles). The distance to there is about 23 km (14 miles) so I went a bit easy on the power. In the end though it doesn't seem to make that much difference if I use Eco or Sport mode. Power is limited in Eco mode but since it takes me longer to get to a certain speed I still end up using around the same power as when I get there quickly using Sport mode.
Thankfully I could get there without a problem with still around 30% battery left. On the way back I was a bit less conservative and used Sport mode a few times. Again I had about 30% left. The way back was a bit shorter though since I could take a small shortcut. Ofcourse I did have to recharge while on visit, took about 2,5 hours from 30% back to 100%.
This was a really fun day for me, spent a lot more time than usual on the quad bike and it was really nice to show that company the quad bike. They only saw the aluminum parts that they made for me back then. Now they could see them mounted on the quad bike and the actual result of the project itself. :)
There were also 3 firsts during this ride, first time riding through a 'bigger' city, the first time on an highway (100 km/h / 62 mph) and also the first time actually making it to 100 km/h (62 mph). It was behind a truck and going downhill but it counts! Both riding in the city and on the highway were pretty weird but fun at the same time. Ofcourse I also had to make a video of it again, think it's also the longest video so far. :D
Posted on 6 November 2018 at 11:11 pm (CET)
So another year just went by again. I did say in my last post it might take a while but here I am again. :) I unfortunately haven't been able to ride much this year due to some health issues but thankfully it's slowly getting better. So when the weather was nice again last weekend I just couldn't resist to go out for another ride. Ofcourse I have some footage again, this time I went for the onboards, both front and rear. Still think this is more fun to see than helmet cam, at least for myself to see everything moving and check up on things. Like how I now know that I have to adjust my chain tension a bit. :D
I went for another ride today to visit some friends, still have to edit the footage since it's way too much to put in one video. So more on that soon. :)
Time really flies, it's already been over 2 years since my last post here. I think it's about time I give you all an update. And what better way to do that than by sharing a video of a nice sunny ride in autumn. As you can see the quad bike and me are still doing well. :)
Since I solved the temperature problem 2 years ago I didn't run into any real problems anymore. I've just been enjoying all the rides I could do with it without any needed maintenance whatsoever.
But part of this no maintenance has to do with a pretty sad problem, the range. You'd think that in 2 years time I'd have quite some mileage on it, but that's far from the truth. The problem here is that, with my current battery pack, I was expecting a range of about 60 miles / 100 km. In reality I'm not even getting half of that, maybe if I'm very conservative.
So the result is that I can't really take it out for long and also can't even get to work with it. I guess you could say it's a miscalculation for the capacity of the battery pack that I needed. But it actually is pretty close in terms of capacity to some electric motorcycles that get much further on a charge. What I didn't really account for was the enormous drag / wind resistance you get on a quad bike while driving at high speed on the road. And ofcourse the rear tyres being connected by a solid axle instead of a differential doesn't help for the range either.
This will one day be fixed by upgrading the battery pack to a larger one. But this will be quite a costly upgrade and right now I have some other priorities that will also cost me money. So for now it'll have to stay like this while still enjoying the short rides around town. Lets just say it's not a problem that can't be fixed, it's just that it is the most expensive problem you can have with an electric conversion. ;)
Other than that it's all been good but some parts did get swapped out. One of them being the Trailtech Striker tachometer which unfortunately broke down not too long ago and it was just outside of the warranty period. But I have a new one now and it's been working great again. I also replaced the Tracopower DC/DC converter with a Sevcon. I needed a little bit more power since the Tracopower couldn't really handle the load without getting very hot. Again, no more issues after replacing. I've also made some small changes to the 12V electric system, mainly to make the charging process a bit easier and to remove some components that weren't really being used anymore. But that's about it. The only thing I'm still thinking about is converting the chain to a belt since the chain grease is hard to get off the beautiful white frame. ;)
So that concludes my update. I'm not sure but I think it might be a while again before you see another update here. Probably next year around this time there'll be an update about the other priorities I was talking about but I can't really say too much about that yet right now. So it's a goodbye again for now. :)
Posted on 7 September 2015 at 09:00 pm (CET)
Category: Website updates
After a long time the website has been upgraded again. Desktop and laptop users won't notice much difference but for tablet and smartphone users the website will look a lot different now. Zooming and scrolling horizontally won't be needed anymore, all information will be adjusted to the screen that's being used by you. Or to sum it all up, a responsive design is being used now.
This design I actually wanted to use at the beginning of the website already but since I rather spent my free time on the project back then instead of on the website it just didn't happen. Since the project has been completed now I finally had some extra time so I still chose to change the design of the website. I noticed that even with the old design there were still a lot of mobile users visiting this site. Ofcourse I couldn't ignore this, now with this new design it really is a lot easier for the mobile users.
There's nothing wrong with the desktop/laptop version, so no changes there. But since it is a pretty big upgrade I did place 3 new images in the banner which are a bit more recent as to make it look a bit nicer again.
Soon there'll be some updates of the quad bike again, the weather wasn't really coÃ¶perative these last few days. But I have been able to do a few rides again and I was also finally able to collect some data on the road.
Posted on 17 August 2015 at 11:26 pm (CET)
Category: Electric motor
Last weekend I've been busy again with the cooling for the motor. The 3 fans I had placed below the motor I turned around so they draw out air from the motor.
The in-line blower I also turned around so it's blowing cool air into the motor. Ofcourse I needed an air filter for this so I went and bought a big one that has the same diameter as the fan itself. This is what it looks like now.
I turned on the in-line blower for a short moment to test how much air would come out of it. And I was very pleased with it, I was just blowing away everything that was lying on the floor. Since it's going from a big to small diameter there's quite some air pressure. After this I placed the whole thing on the quad bike again and when it stopped raining outside I went for another test run.
Ofcourse I expected it to work a little better than how it was before. With the blower on I actually felt air coming out of the motor. The air is being blown everywhere through the motor now and also passes the brushes so they're being cooled constantly. But during testing I just couldn't get the temperature to go above 51 degrees celsius. Every time I let go of the throttle I saw the temperature drop below 50 degrees celsius again. And when I stood still for a moment the temperature dropped to 30 degrees celsius within just a minute.
It actually seemed too good to be true. So I went for another lap after this and now with full power while accelerating. Again it didn't go above 50 degrees celsius while during the last test run it actually was at 73 degrees celsius and that wasn't even the maximum. But that 50 degrees celsius actually does seem to be the maximum temperature now for normal driving. Ofcourse it probably will be a bit higher if I really use that full power a bit more but if it drops down to 50 degrees celsius again after that then I'm more than happy. So I think I can say with some degree of certainty that the temperature problem of the motor is finally solved! :)
I now still want to try removing those 3 fans below the motor because I have a feeling that these aren't really helping that much and that only the in-line blower will be enough. Also still have to see how I can properly mount that in-line blower. I definately want to place some rubber inbetween since it vibrates pretty much.
I also want to ride a longer distance now to see if the temperature will actually stay around that 50 degrees celsius, even with 80 km/h (50 mph). But I don't really expect any problems anymore with the temperature now.