Thread: Goodnight Diesel. ...Land Rover get your EV skates on!

Originally Posted by goingbush

I think fitting something like a Nissan Leaf motor direct to the Transfer case will be the best way to go. The Motor Ive used is similar power to the original engine so still need the gearbox. As EV's turn up in salvage yards the options for retrofit will get better.

At the moment there are about 20 converted LandRovers that In know of , from Freelander to RRC , Series One to Defender .

Most have simply replaced the ICE with an Electric motor & keep the gearbox / clutch , Some have bolted a Motor to the front of the Transfer Case .

A few conversions underway now include a bloke is fitting a motor direct to rear diff in a 90 (2WD only) . A 6x6 Perentie is getting a Industrial 3 phase motor bolted to the Gearbox (in Canberra) and theres another guy fitting a Tesla Drive unit to a 110 , I assume RWD only .

Zeros if your on Facebook, have a look at this group
Electric LandRover and 4x4 EV Conversions public group | Facebook

Hi Don.
What size motor would you be aiming at for a Disco1 hybrid conversion. You used a HPEVS AC-51 in your lightweight pure EV but it looks like a AC-50 has better power/torque characteristics to operate at 1:1 ratio from the PTO when matched to a TDi engine. Do you go smaller with a hybrid (helper) electric motor?

Probably a thread topic all by itself but I'll start here... :-)

Chris

Originally Posted by cjc_td5

Hi Don.
What size motor would you be aiming at for a Disco1 hybrid conversion. You used a HPEVS AC-51 in your lightweight pure EV but it looks like a AC-50 has better power/torque characteristics to operate at 1:1 ratio from the PTO when matched to a TDi engine. Do you go smaller with a hybrid (helper) electric motor?

Probably a thread topic all by itself but I'll start here... :-)

Chris

I went for the AC51 over AC50 because of its higher Voltage , higher voltage being more efficient and easier to wire 45 cells in series for my 144V , rather than a series /parallel configuration I would have needed to 96V

However Now I would go with Netgain Hyper 9 which was not released when I purchased mine, as it cheaper , IP67 sealed and more power . more torque . (100kw 220Nm) Depending on use still not enough for a Disco / Hybrid .

As loath as I am to prolong this thread , someone told me yesterday that if a Tesla is Supercharged often , the charging rate is then throttled back permanently to prolong the battery life.
I thought it sounded plausable so I had a look today on Google and found this from the Tesla owners club.
Hmmm.

If you fast charge, Tesla will permanently throttle charging | Tesla Motors Club

Regards Philip A

Battery tech is improving and this looks promising Fluoride-based battery challenges lithium for stability and stamina

Originally Posted by PhilipA

As loath as I am to prolong this thread , someone told me yesterday that if a Tesla is Supercharged often , the charging rate is then throttled back permanently to prolong the battery life.
I thought it sounded plausable so I had a look today on Google and found this from the Tesla owners club.
Hmmm.

If you fast charge, Tesla will permanently throttle charging | Tesla Motors Club

Regards Philip A

It's not surprising, given that all rechargeable batteries lose capacity over time. But it is a concern that it would happen so quickly with an expensive EV.

Originally Posted by PhilipA

As loath as I am to prolong this thread , someone told me yesterday that if a Tesla is Supercharged often , the charging rate is then throttled back permanently to prolong the battery life.
I thought it sounded plausable so I had a look today on Google and found this from the Tesla owners club.
Hmmm.

If you fast charge, Tesla will permanently throttle charging | Tesla Motors Club

Regards Philip A

All they need to do is plug the car in at home or when otherwise convenient & not rely on constant supercharging.

The addition of Supercapacitors will idiot proof the car, The Supercapacitors will take on fast charge & then move the energy to the storage pack at a more controlled rate.

Tesla battery expert recommends daily charging limit to optimize durability - Electrek

Most batteries have a charging rate vs life cycle curve.
The specs on my batteries are 2000 Life cycles at 80% DOD , 3000 at 70% ,
at about 50% & the estimated lifetime is 100,000 cycles , x 50km = 500,000km
(my 28.8 kwh pack returns about 28-30 kwh per 100km )

I usually charge mine before I get to 50% (after about 2-3 days use) to keep the car topped off incase I need to take an unexpected longer trip.

PhilipA, by the time you are begrudgingly forced into an Electric car Im sure all these inconveniant teething issues will be well and truly a distant memory.

Even the manual for my phone says not to charge it for longer than 12 hours.

Originally Posted by Zeros

It's not surprising, given that all rechargeable batteries lose capacity over time. But it is a concern that it would happen so quickly with an expensive EV.

Full story is a little different:

Tesla explains why it limits Supercharging speed after high numbers of DC charges - Electrek

So, the owner was doing something that Tesla is concerned about - charging on DC repeatedly. So, Tesla has throttled back his DC charging and, as Tesla say:

"Important to note, supercharging will always still be available to the vehicle and the battery pack has not yet experienced significant degradation due to the amount of DC fast charging performed on the pack up until this point in time. Vehicle is operating as designed."


Edit: As Goingbush says, in a few years time this will be our everyday existence.

BTW, my wife, who is not the slightest bit car oriented, said to me recently that our next car would be electric.