Search found 850 matches

by T1 Terry
Sat, 15 Jun 2019, 12:31
Forum: Renault
Topic: My experiences with the Zoe
Replies: 18
Views: 264

Re: My experiences with the Zoe

I can see long drives and rapid recharging, then repeat, being a problem for all but the most sophisticated battery/motor/inverter/charger cooling systems. Even Tesla reportedly limit the rapid charging after a number of back to back fast recharges. Rather than just turning off, the Tesla apparently...
by T1 Terry
Sat, 15 Jun 2019, 11:07
Forum: Technical and conversion discussion
Topic: Direct Drive options
Replies: 19
Views: 193

Re: Direct Drive options

I had on of these little pocket cars with the 2 speed auto many yrs ago, couldn't keep motors up to it. I thing a direct drive into the 2 sp transmission, rather than the torque converter, would make a great little run around car using a much smaller motor than a direct drive approach would require....
by T1 Terry
Fri, 14 Jun 2019, 13:22
Forum: Technical and conversion discussion
Topic: Total NOOB to convert Classic Mini
Replies: 45
Views: 4242

Re: Total NOOB to convert Classic Mini

brendon_m wrote:
Thu, 13 Jun 2019, 17:36
Hmm, true. I guess taking to a lithium battery pack with a plasma cutter will have to fulfill my destructive tendencies
Now that would make a You Tube video that would go viral :shock: :lol:

T1 Terry
by T1 Terry
Fri, 14 Jun 2019, 11:31
Forum: For Sale/Wanted
Topic: Converted Ford Focus - WA (needs windscreen and battery)
Replies: 7
Views: 154

Re: Converted Ford Focus - WA (needs windscreen and battery)

Any estimation on price? And what is a "hairball drive controller" hopefully not a comparison to something the cat threw up :lol:

T1 Terry
by T1 Terry
Thu, 13 Jun 2019, 15:54
Forum: Technical and conversion discussion
Topic: Total NOOB to convert Classic Mini
Replies: 45
Views: 4242

Re: Total NOOB to convert Classic Mini

They use 15inch+ petrol power grinders to cut cars in half for half cuts, what a sight to see when the guy doing an EV goes through the battery in the floor :lol: When I worked for the rail maintenance mob, they had a number of these petrol powered jobs with the big cutting blade that they used for...
by T1 Terry
Sun, 09 Jun 2019, 09:40
Forum: For Sale/Wanted
Topic: Electric bus inverter-motor units + gearbox for sale
Replies: 17
Views: 469

Re: Electric bus inverter-motor units + gearbox for sale

In the picture of the complete unit I can see a computer on the back of the gearbox, separate from the motor controller. I presume this is the gearbox controller. There is a large bunch of wires leaving it that has been cut off.... Looking through the other photos, there are a lot of spots where a ...
by T1 Terry
Thu, 06 Jun 2019, 13:42
Forum: For Sale/Wanted
Topic: Electric bus inverter-motor units + gearbox for sale
Replies: 17
Views: 469

Re: Electric bus inverter-motor units + gearbox for sale

It would be, but it doesn't :( I'd probably be busy arranging transport now if that price included all 3 bit. No idea if the gear shift is completely computer controlled or if there is a gear selector that goes with it. I wonder if reverse is part of the gearbox or simply running the motor backwards...
by T1 Terry
Wed, 05 Jun 2019, 12:05
Forum: Technical and conversion discussion
Topic: Converting a truck
Replies: 6
Views: 125

Re: Converting a truck

They figure the truck already has a chassis designed to carry more than its rated load and brakes good enough to stop that load, so it isn't likely you would repower it with something that would exceed those stress requirements. As the vehicle is already limited to 100km/h max permissible speed on A...
by T1 Terry
Tue, 04 Jun 2019, 09:43
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 267
Views: 18893

Re: Prelude conversion project - some questions

The weight of the motor for the bus project was the same as the weight for the trick 4 speed gearbox, a real eye opener to the amount copper etc inside these motors.

T1 Terry
by T1 Terry
Tue, 04 Jun 2019, 09:39
Forum: Technical and conversion discussion
Topic: Non-Syncromesh Gearboxes
Replies: 8
Views: 138

Re: Non-Syncromesh Gearboxes

System efficiency you would have to measure for My old mazda2 would draw fewer battery amps at low rpm, I suspect due to lower losses in the gearbox Ah, a factor I hadn't thought about. More an issue in manual gearboxes than auto because there are multiple shafts turning and all the gears thrashing...
by T1 Terry
Mon, 03 Jun 2019, 16:38
Forum: Technical and conversion discussion
Topic: Non-Syncromesh Gearboxes
Replies: 8
Views: 138

Re: Non-Syncromesh Gearboxes

An Alison auto direct drive (no torque converter) would be the easiest method. A 4sp would be enough because the electric motor has heaps of torque all the way through its rpm range, so no need to match a ratio to the torque sweet spot. Gear selection would be more a case of matching the required sp...
by T1 Terry
Mon, 03 Jun 2019, 16:30
Forum: For Sale/Wanted
Topic: Electric bus inverter-motor units + gearbox for sale
Replies: 17
Views: 469

Re: Electric bus inverter-motor units + gearbox for sale

Doesn't matter now. Just received an email back from the people selling the motors etc. The price is very good, just too rich for my pocket, so I'll have to revert to one of the other ideas using one of the 2 motors I already have coupled to the Alison auto that I already have. I was looking at arou...
by T1 Terry
Mon, 03 Jun 2019, 12:12
Forum: Technical and conversion discussion
Topic: Converting a truck
Replies: 6
Views: 125

Re: Converting a truck

Once the heavy vehicle has had an original registration, repowering with a different motor/gearbox configuration only requires the numbers to upgraded on the paperwork. As long as the fitting is sufficient to stop it falling out on the road, they don't seem to really care. The whole electrical part ...
by T1 Terry
Mon, 03 Jun 2019, 12:04
Forum: For Sale/Wanted
Topic: Electric bus inverter-motor units + gearbox for sale
Replies: 17
Views: 469

Re: Electric bus inverter-motor units + gearbox for sale

If I get mine for the price I offered, the weight problem will only be a concern when shipping it over here. I plan to install mine in the 36ft bus/motorhome project that has ben stalled for many yrs. It has a 351 Cleveland V8 and a 4sp Alison transmission in it at the moment and that weighs quite a...
by T1 Terry
Mon, 03 Jun 2019, 09:01
Forum: For Sale/Wanted
Topic: Electric bus inverter-motor units + gearbox for sale
Replies: 17
Views: 469

Re: Electric bus inverter-motor units + gearbox for sale

I think I sent my email to the wrong place, so I have attached it to another email to the secretary email address above. That will probably explain why I haven't received a reply yet :roll:

T1 Terry
by T1 Terry
Sun, 02 Jun 2019, 10:34
Forum: Renewable Energy and Storage (Non-EV)
Topic: BMS for AVASS cells, 16S LiFePO4
Replies: 10
Views: 174

Re: BMS for AVASS cells, 16S LiFePO4

After much experience with cells killed by across cell balancers that use the burn off method, I'm very much against them. There is an active member of the SA Adelaide branch that is developing a well thought out BMS complete with an alternate method of balancing and full interface capabilities that...
by T1 Terry
Thu, 30 May 2019, 12:35
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 1444

Re: Offgrid solar project

I thought about setting up a system with a very small PSW inverter feeding in through the paralleled inverter array to power light loads. As soon as a load high enough to trip out the small inverter was sensed, the parallel inverter group went into UPS mode, the small inverter was disconnected from ...
by T1 Terry
Tue, 28 May 2019, 15:41
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 1444

Re: Offgrid solar project

Unfortunately no one has come up with a staged output parallel inverter set up, so the very light loads are spread across all the paralleled inverters making the delivery efficiency very poor at light loads. I've been trying to get the professor (at one of the Chinese factories my China contact has ...
by T1 Terry
Mon, 27 May 2019, 15:52
Forum: Tesla EVs
Topic: Tesla Model 3 - APPROVED by Australian Governing body for Sale
Replies: 2
Views: 113

Re: Tesla Model 3 - APPROVED by Australian Governing body for Sale

Now to see the price. I believe the quoted price was some where around the $78,000 mark when the AUD was at 75c to the USD. Now we are battling to hold 69cents to the USD the price might be well out of the range of most people.

T1 Terry
by T1 Terry
Thu, 23 May 2019, 14:40
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 1444

Re: Offgrid solar project

Normally I suggest all cells are parallel first then those put in series to a make a string. So LTO/LiFePO4/Lipo all have different voltages so this is not possible. A series of small LTO performance cells then in parallel with a large general pack of LiFePO4 may end up "balanced". So 10A draw woul...
by T1 Terry
Thu, 23 May 2019, 10:04
Forum: Renewable Energy and Storage (Non-EV)
Topic: Offgrid solar project
Replies: 65
Views: 1444

Re: Offgrid solar project

If you needed a bigger battery pack, why wouldn't you add cells in parallel to the existing LTO pack? Are the different to LFP/LYP cells in a way you can't mix old with new?

T1 Terry
by T1 Terry
Mon, 20 May 2019, 15:37
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 60
Views: 2157

Re: EOI - New Yinlong LTO cells Australia

I can't see a sudden loss of capacity happening in the next 10 yrs that would render the cells unsuitable for the job Don't confuse calendar life with cycle life. Dendritic action I believe. So the cell WILL just "die" one day even though yesterday it had 90-100% of the claimed capacity. MTBF ~10 y...
by T1 Terry
Thu, 16 May 2019, 12:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 70
Views: 1571

Re: Is anyone using an arc welder with an offgrid system

I wonder is the LCD display can be removed from the unit metal cover and the leads extended using Cat spec cable or similar. Possibly they have a device to output the information to the Ethernet or Bluetooth, depending how far away from the device you need to access the information. The PIP units ha...
by T1 Terry
Thu, 16 May 2019, 12:46
Forum: Batteries, charging, management and monitoring
Topic: EOI - New Yinlong LTO cells Australia
Replies: 60
Views: 2157

Re: EOI - New Yinlong LTO cells Australia

Our longest running house power RV battery packs are just over 8 yrs old and test at 100% capacity using the same 0.5CA capacity testing Winston use according to their specs books that come with the cells. ... It will be interesting to see just how long these systems will maintain their 100% of the...
by T1 Terry
Tue, 14 May 2019, 15:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 70
Views: 1571

Re: Is anyone using an arc welder with an offgrid system

Thanks Dave, looks like I'll have to stick with the PIP units and their heavier standby current. The PIP does have that ECO mode as well, but it just causes havoc with anything that uses a digital clock and the start up test current for a few of the freezers isn't enough to wake up the sleeping inve...