I-miev all electric car.

Into electric cars, hydrogen engines, biodiesel; in fact any sort of alternative fuel vehicle? Here's the place for you - questions, tips, resources and electric car/alternative fuel vehicle news.

Re: I-miev all electric car.

Postby offgridQLD » Sun Jan 29, 2017 4:12 pm

I just went and checked,
Image

Outdoor temp personal weather station 30.2C
Image

Aircon set at 22C and room temp is 22C
Image

Temp gauge sitting on top of bank showing 23C
Image

Battery probe from charge controller showing 22.9C
Image

Probe location.
Image

Kurt
Offgrid 2008, Selectronic PS1 6kw/48v inverter, x 2 Midnite solar classic 150 MPPT, 3960w NE PV 24 x 165w BP panels, 4200w NW PV 21 x 200w DAQO PV, 16x400ah lithium.
offgridQLD
Solar Crusader
Solar Crusader
 
Posts: 2067
Joined: Thu Jan 26, 2012 12:50 pm

Re: I-miev all electric car.

Postby australsolarier » Wed Feb 01, 2017 9:40 am

i was just watching some youtube videos from a german guy owning a tesla.
100'000km driving equals a 5% capacity loss in the tesla battery. (1kw/h equal about 5km driving distance)
the battery goes to 1000'000km then a a very steep capacity loss will start. (by then the car probably won't be used anymore anyway.)

as for the peukert in the tesla battery supposedly it is so 1.04 or 1,05.
so he test drained the battery driving 100kmh and then 200kmh.
driving 200kmh the battery ouput was 5% less. (mind you not the kilometers driven, with higher wind resistance etc the distance driven was shorter at 200kmh driving. the 5% loss reflects purely what's coming out of the battery.)

he was also doing a youtube to see what happens when you drive until the battery is "empty". the software starts to make the speed slower and slower until you are down to 10kmh before the cars stops altogether. this state is of course still in the safe are of battery voltage.

as for charging, he only charges to 100% , just before a trip. at night he charges to 90% and then an hour before he drives off to 100%. this avoids the battery being in the high voltage range.

as for super charging on the road, basically you fast charge to 80% and then the next super charger to 80% again. this is much faster to do than going up to 100%. it takes about 20 minutes with the tesla super charger to 80%, the 100% charge takes about 40 minutes longer.

just some tidbits picked up on youtube
australsolarier
Solar Crusader
Solar Crusader
 
Posts: 283
Joined: Sun Mar 28, 2010 10:27 am

Re: I-miev all electric car.

Postby offgridQLD » Wed Feb 01, 2017 11:12 am

Yes all very interesting.

Our Imiev just ticked over 30,000km this morning 30,024km to be exact. I'm sure we have lost some range from 2012 considering its 2017 but not much.

As of now if we do 15,000km PA 300km week (about what we do every week now we use it more in the hinterland). Then it will take another 4 1/2 to 5 years to hit 100,000km the car will be 10 years old by then.

There is a guy in WA who purchased a 2012 imiev just before I got mine. last time I checked he had 92,000km on his Imiev and still has over 100km range. Car gets charged two times a day often to 100%.

So calendar life might play a part for me as I am not doing the km he has but it's well safe to say the battery will last 100,000km and still be healthy if your willing to put the km on it.

Time will tell over the next 5 years will see how I go.

1kwh from the battery = 10km driving for me in our imiev :D 1/2 the consumption of the big model S.

it's about 130wh km from the wall socket with all the inefficacy, idle consumption, charger losses. Dc/Dc fast charging is more efficient though.

Kurt
Offgrid 2008, Selectronic PS1 6kw/48v inverter, x 2 Midnite solar classic 150 MPPT, 3960w NE PV 24 x 165w BP panels, 4200w NW PV 21 x 200w DAQO PV, 16x400ah lithium.
offgridQLD
Solar Crusader
Solar Crusader
 
Posts: 2067
Joined: Thu Jan 26, 2012 12:50 pm

Re: I-miev all electric car.

Postby australsolarier » Wed Feb 01, 2017 11:22 am

my hilux petrol was parked that long in the carport, it had a 2m long vine growing into the mesh behind the rear window. i went shopping and noticed that when i returned with the shopping bags. embarassing!!!. i had a look today, and !!! another 2m vine is trying to invade the hilux. was thinking on potting the vines, but i suppose it will take out too much of the rear view eventually.
was thinking of buying an electric vehicle a few years down the track, however i am not sure my low use justifies it.
australsolarier
Solar Crusader
Solar Crusader
 
Posts: 283
Joined: Sun Mar 28, 2010 10:27 am

Re: I-miev all electric car.

Postby Gordon-Loomberah » Fri Feb 03, 2017 4:31 pm

offgridQLD wrote:1kwh from the battery = 10km driving for me in our imiev :D 1/2 the consumption of the big model S.


Kurt, you could get a bit more distance per kWh if trade the imiev in on this ;)
http://www.scootercity.com.au/TycoonSpecifications.html
http://gunagulla.com Loomberah weather and astronomy including live solar radiation intensity and UV + Gunagulla aquaponics, organic eggs and cherries
User avatar
Gordon-Loomberah
Community Moderator
 
Posts: 5338
Joined: Thu Sep 24, 2009 10:41 pm
Location: Loomberah NSW Australia

Re: I-miev all electric car.

Postby offgridQLD » Fri Feb 03, 2017 11:05 pm

Yes Gordon I think there is a limit to style, comfort and performance vs economy. The Imiev is about the most frugal production EV you can get (one that has 4 seats air conditioning and can travel at freeway speeds) The model S is is very frugal considering it size,weight and performance. Though being offgrid I sure would notice the double kwhrs needed each day for the same trips. I'm sure if your happy to pay 150k for it then a few extra thousand on more PV wouldn't be a issue.

When I was working in a engineering workshop in Melb one of the guys turned up to worth with a mobility scooter. We spent a few lunch breaks and down time tricking the thing up for his friend with a 2 stroke motorbike engine. The end result was one very dangerous silly machine.

When I see the electric scooters parked outside a shop I often wonder what the results would be if i did a quick rewire of all the paralleled 12ah agm battery's to series configuration for way more voltage ...my wife never seems to share my enthusiasm, imagination or humor :lol:

looks like some one has already done it for me on you tube https://www.youtube.com/watch?v=90ffg6QUDwM

Electric motors are great in this way particularly dc Brushed motors. You just keep feeding them more voltage and get massive gains in power with little effort in comparison to combustion engines.
Offgrid 2008, Selectronic PS1 6kw/48v inverter, x 2 Midnite solar classic 150 MPPT, 3960w NE PV 24 x 165w BP panels, 4200w NW PV 21 x 200w DAQO PV, 16x400ah lithium.
offgridQLD
Solar Crusader
Solar Crusader
 
Posts: 2067
Joined: Thu Jan 26, 2012 12:50 pm

Re: I-miev all electric car.

Postby Gordon-Loomberah » Sat Feb 04, 2017 10:08 am

What strikes me as crazy is the expensive use of Magnesium alloys etc to make everything light weight, then they put a heavy seat on it and recommend Lead-acid batteries! They talk about how it folds up to be very compact, but if you want to catch a taxi, I suspect the average taxi driver would quickly disappear when asked to put it in the boot.
I was discussing this with my brother yesterday as we want something for our mother, but it looks like we need to design and build something ourselves, to be lightweight and compact, so probably using BMX size wheels and bicycle weight tubing etc.
http://gunagulla.com Loomberah weather and astronomy including live solar radiation intensity and UV + Gunagulla aquaponics, organic eggs and cherries
User avatar
Gordon-Loomberah
Community Moderator
 
Posts: 5338
Joined: Thu Sep 24, 2009 10:41 pm
Location: Loomberah NSW Australia

Re: I-miev all electric car.

Postby offgridQLD » Thu Feb 16, 2017 2:27 pm

Thought it was worth checking the moving parts on the Imiev just to see if anything is broken, worn or loose.

The motor and drive line is very simple and compact. Not much that can go wrong. The single reduction gear (diff) that the motor ataches to has 750ml of oil in it and the book lists it good for over 100,000km.

There are two drive shafts to the wheels similar to what a front wheel drive car would use though I would expect them to last longer than a FWD cars CV joints as the Imiev is RWD and has a fixed outer geometry as it don't need to steer the rear.

The motor has who rubber hoses going to it for cooling fluid in at the top and out at the bottom of the motor.


[Image

Very compact with lost of room everything if you ever did need to remove anything.
Image

It's hard to see in the pic but the entire drive line motor and reduction drive . Along with the motor controller, charger, water pump and vacuum pump all mount to a tubular space frame. By undoing a few large bolts on the tube frame all of the above can be remove as one unit. Reminds be a little of a VW beetle or combi van. This short video shows the complete unit being lowered out of the car and back in again. Along with the battery box. very quick and simple.
https://www.youtube.com/watch?v=B11BHPbokN0


Image

Battery box is in the middle of the car slung under the floor. You would need to wheel a table that could support 250kg under the car then lower the car down so the battery box rested on the table before removing the bolts and raising the car up away from the battery box.

The front of the car just has the steering rack (that has a small dc motor attached directly to it (looks like a wind screen wiper motor) That gives it plenty of steering assistance. The air conditioner compressor is a sealed unit that's also mounted to the same tube frame directly under the steering rack. Being a completely sealed compressor that runs directly from the battery (you can see the orange flex conduit that is the high voltage CD to the aircondishioner compressor in the pic) there shouldn't be much to go wrong with it.
Image

The only other component is a small box near the fire wall that I call the kettle. It has a 5kw restive element inside it that heats coolant to circulate through the cars interior heater core. Again very simple plumbing and very easy to get at. Again high voltage dc orange conduit to the element.
Image

Over all the Imiev is a very simple car and given the car was initially a 600cc turbo petrol car that was converted to electric. All of the EV components go on the car in a very simple kit like fashion rather than being overly complicated and integrated like a ground up EV build where a over enthusiastic kid using CAD has tried to be to smart and made the car hard to work on.

If the cars body was ever damaged beyond repair. All the EV components could be easily removed and re-purposed in a conversion or kit car.
Offgrid 2008, Selectronic PS1 6kw/48v inverter, x 2 Midnite solar classic 150 MPPT, 3960w NE PV 24 x 165w BP panels, 4200w NW PV 21 x 200w DAQO PV, 16x400ah lithium.
offgridQLD
Solar Crusader
Solar Crusader
 
Posts: 2067
Joined: Thu Jan 26, 2012 12:50 pm

Previous

Return to Electric/Alternative Fuel Vehicles

Who is online

Users browsing this forum: No registered users and 0 guests

new solar power specials