Search found 101 matches

by francisco.shi
Fri, 15 Feb 2019, 20:26
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 69
Views: 11370

Re: Hyundai Australia Kona EV info

The 100kwh is to get more range out of the towing vehicle. To get 6kw solar you need to have an awning on each side of the caravan. A large caravan is about 6x2m about 12m2. At 170w per m2 for solar panels that is 2kw. Then an awning on each side adds up to a total of about 6kw. You park the caravan...
by francisco.shi
Fri, 15 Feb 2019, 19:26
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 69
Views: 11370

Re: Hyundai Australia Kona EV info

I am working on it. Electric Pajero. Instead of towing the EV how about the EV towing the caravan. The caravan would have a 100kwh battery with a 6kw solar array. You park the caravan open the solar panels and leave it charging while you go out and explore on the EV. Range will be unlimited if you a...
by francisco.shi
Tue, 12 Feb 2019, 18:13
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

I do not use face book much. Are you in Brisbane?
by francisco.shi
Tue, 12 Feb 2019, 16:34
Forum: Hyundai
Topic: Hyundai Australia Kona EV info
Replies: 69
Views: 11370

Re: Hyundai Australia Kona EV info

Electric cars are such a wonderful product to sell. Even without doing any advertising no price no specs and customers are already putting deposits for something they haven't seen and don't even know the price of.
Why are car manufacturers not making more EVs?
by francisco.shi
Tue, 12 Feb 2019, 16:24
Forum: Technical and conversion discussion
Topic: Lead acid to lithium conversion
Replies: 37
Views: 414

Re: Lead acid to lithium conversion

Would you consider one of these ones? http://forums.aeva.asn.au/viewtopic.php?f=17&t=5883&sid=960bbdb21873c877acdd8431f59d032c#p71556 I am not ready yet but in the next month or two I want to order the rest of my cells and I would like to order as many as possible to try to get a better price. I can...
by francisco.shi
Tue, 12 Feb 2019, 15:48
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

The motor will have some rubber mounts. The inertia of the motor is quite low so I am not sure that it will need much in the way of shock loading prevention. Most of the springs in the clutch and rubber couplers are to get rid of the torque pulses from the ICE. Single cylinder motorbikes have much b...
by francisco.shi
Mon, 11 Feb 2019, 15:14
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

I will have a 70kwh battery capable of charging at over 150kw. So should be able to get to 80% in 20min if the charger can supply the power. As far as I have been told the limit of how fast I can charge depends on keeping the batteries cool and do not over voltage them when they get close to full he...
by francisco.shi
Mon, 11 Feb 2019, 10:34
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

The charge connector seems to be a tight fit.
I want to put a CCS 2 connector for my conversion but I am not sure that it will fit in where the petrol cap was.
I want to be able to use a DC fast charger. Not sure if it is necessary as it seems there are not that many DC chargers around at the moment.
by francisco.shi
Tue, 05 Feb 2019, 21:49
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

Where did you buy the plug from?
by francisco.shi
Sun, 03 Feb 2019, 04:33
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Re: Battery Modules Questions.

The battery would be under the car and I assume would have some insulation so you will not need to run the air conditioner very hard. Also you do not need to hold it at 20°C. Probably 35 will be enough and you would only be cooling the battery not the cabin. And I have also considered putting solar ...
by francisco.shi
Sat, 02 Feb 2019, 18:34
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Re: Battery Modules Questions.

Do you know what the contact resistance is in the Tesla packs?
That is the resistance between the cell output contact and the pack output contact.
That may be where the extra resistance is.
by francisco.shi
Sat, 02 Feb 2019, 03:32
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

After I am finished I will be able to make a set of everything pretty quickly. I have drawings and 3D models for everything I make. So I could make you a kit with everything assembled put it on a pallet and ship it to you. The only thing you would have to do is remove the engine and transmission and...
by francisco.shi
Sat, 02 Feb 2019, 03:25
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Re: Battery Modules Questions.

You need to use the air conditioner to cool the water that runs thru the battery. The issue with the Tesla cooling system is not the temperature of the water. It is the thermal resistance between the water and the cells. My battery cooling system has a temperature difference between the water and th...
by francisco.shi
Fri, 01 Feb 2019, 14:35
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

They look like the same cells I am using.
by francisco.shi
Fri, 01 Feb 2019, 10:52
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

The diff is the rear diff out of a Nissan skyline. I did think about using the rear diff at the front but the half shafts are different and will not fit in the front hubs and the front half shafts do not fit the rear diff without doing what I did. Also I have been told that the rear cvjoints do not ...
by francisco.shi
Thu, 31 Jan 2019, 19:13
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

The engine bay looks so empty.
IMG-20190131-WA0007.jpeg
IMG-20190131-WA0007.jpeg (248.61 KiB) Viewed 254 times
I will need to think of something to put in that empty space. Maybe a fridge to keep drinks cool and to keep the ice cream from melting on the way back from the shops. :lol:
by francisco.shi
Thu, 31 Jan 2019, 19:11
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

I have been making some changes to the way I am going to attach the motors to the diffs. Originally I was going to use a rigid coupler and mount the motor to the diff but it did not really feel right. Luckily I found some CV joints for tail shafts for commodores. They are only $50 and they are about...
by francisco.shi
Thu, 31 Jan 2019, 16:22
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Re: Battery Modules Questions.

Nice in theory but the market is nowhere big enough to make this profitable. Also I doubt one size fits all as there are too many different cars with different mounts and different user requirements. Making the battery longer is easy. No need to modify any parts except the length of the cooling tub...
by francisco.shi
Thu, 31 Jan 2019, 11:42
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Re: Battery Modules Questions.

I am building the BMS and the plan is to have one board per cell. This will avoid all the wiring. The boards fit in between the cells so they do not occupy any space outside the profile of the pack. I am not sure if using one micro for 8 cells will make wiring messy and I would still need to have in...
by francisco.shi
Thu, 31 Jan 2019, 08:22
Forum: Batteries, charging, management and monitoring
Topic: Battery Modules Questions.
Replies: 14
Views: 259

Battery Modules Questions.

I am considering the possibility of making standard battery modules that I could sell to people doing EV conversions. The idea is to make a standard size battery module that can be used as an off the shelf item that can be easily installed into a car that requires minimal work. The modules will be w...
by francisco.shi
Wed, 30 Jan 2019, 20:37
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

Both.
The dynamic was while I was trying to balance on it.
The static was once I got on top and got my balance.
It passed both tests. :lol:
by francisco.shi
Mon, 28 Jan 2019, 05:47
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 84
Views: 4299

Re: Francisco's Electric Pajero

Checking the battery module strength.
IMG_0834.jpg
IMG_0834.jpg (846.05 KiB) Viewed 202 times
Distance between supports is 1.3m battery weight 34kg. Test weight 80kg :oops: .
by francisco.shi
Sun, 27 Jan 2019, 17:45
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 162
Views: 11046

Re: Prelude conversion project - some questions

It is looking good. 👍
How are you going to make the battery water tight?
by francisco.shi
Tue, 22 Jan 2019, 12:53
Forum: Technical and conversion discussion
Topic: Battery Isolation Contactors
Replies: 5
Views: 153

Re: Battery Isolation Contactors

I will need at least one contactor per motor so I can do the precharge of each inverter separately. Also both motors together can draw over 500A which is the maximum rating of the contactors that I can get cheaply. The 1000A version is more than double the price of the 500A. And will also need a con...
by francisco.shi
Tue, 22 Jan 2019, 12:47
Forum: General EV Discussion
Topic: List of conversion workshops in Australia
Replies: 52
Views: 22466

Re: List of conversion workshops in Australia

I am looking for a certification engineer to certify my conversion.
Does any one know of any engineers in Qld?