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Be aware BU is not published research, it is essentially hypothesis and conjecture. I am not sure that Tesla reserves anywhere near the amount claimed and that would cover degradation. The cars have about 4kWh reserved and allow you to charge to 4.2V nominally.

For a UK car if it was a salvage car it should have been Category N (non-structural write off) or Category S (structural write off) declared. I forget the transition but some cars previously were Category D and Category C for the same. Tesla will not repair/service salvaged vehicles under...

There is a very simple reason accidents like this keep happening. TACC and emergency braking cannot detect a completely stopped vehicle. The radar works by bouncing return pulses off targets and returns relative speeds of vehicles. A sudden deceleration will be detected, as will slowing...

NEDC ratings... they are completely unrepresentative of the real world. The UK Model S page says the 90D gets 346 miles. So 380 miles represents 9% over the 90D, which has a battery 10% smaller. (From this we can expect the 100D to be slightly heavier than the 90D i.e. it won't simply be a...

I am reasonably certain Tesla use variable switching frequency, as well as inverter frequency. The inverter harmonics seem to change, indicating this. You are correct frequency is only proportional to speed when the motor is theoretically unloaded. Some slip is necessary to create torque.

Trip Chowdry needs to do some more research. Tesla's AC induction inverters already vary the frequency on the output. Since the AC induction motor is synchronous the output frequency of the inverter is related to the speed of the motor. The inverter is already very efficient, around 90%...

No reason you can't do 200kW, but say it's operating at 13.54MHz (pretty typical ISM band) this requires a lot of power semiconductors, very expensive, even something like 85% efficiency using say a Class-E resonator will be dissipating 15-20kW alone in the power semis, so the charger will...

Fender, quarter panel, two doors, autopliot sensor(s) plus respray, labour - predicting $45k and 10 weeks. Best wishes, hope it gets fixed soon.

If this is your approach I don't think you have any grounds to criticise Otmar's Vanagon project.

I don't want to damp your enthusiasm here. I'm a student too, so I can understand taking on a project can be exciting (and I have way too many of them...) But in order to do this, you're going to need precise engineering measurements and materials details for every part. You'll need to model...

How exactly will you conduct such an analysis? You couldn't expect to build a full model of the car as used in simulations - that would require a very substantial investment of time. I'd be surprised if you could even model the A-pillar, as even that would be a significant effort.

And you are saying your bond-glue'd Tesla will be better than his Stretchla? So much doublethink.

The touchscreen doesn't process the camera image, the image is drawn directly to the display without any in-between by an "FPGA"...effectively this means there is no way to extract the image.

The AP is implemented in a dedicated fault tolerant module, and it connects with the radar, iBoost, ultrasonic sensors and front camera (after passing through Mobileye processor) The rear camera simply passes thru to the touchscreen, and in fact goes directly to an onboard FPGA which directly...

I've actually got a P100+j100D on order, but it's taking Tesla a while to get my order sorted out as it's quite a complex car.

So wait, someone buys this, gets there and says, "wait, I didn't expect it to look like this" and then buggers off?

The autopilot has no access to the rear facing camera.

I also suspected the HVJB (although not the battery bolts at fault of course), interesting to see Tesla came to the same conclusion. It would be good to know what the root cause was but I'm guessing the car was too badly destroyed to tell or Tesla don't want to say.

Oh good. Much better. Why this isn't the default I'm not sure, but it actually looks pretty decent now. Still getting used to some of the subforum navigation, I feel like there needs to be a better layout there with more contrast.

I have a monitor that is 3840 pixels wide. This forum using just 1000 or so looks ridiculous. Could you at least make the scaling dynamic, so it fills say ~90% of the browser width?

Pictures of inside the charger: External photos The charger converts AC electricity into DC electricity to charge the battery. It uses an isolated boost-buck converter, with a power-factor correcting boost pre-converter (utilising several large electrolytics) followed by a...

Also, you forgot to mention that the Model 3 will come with sixteen-way power adjustable heated, ventilated and cooled cup holders.

The one thing that confuses me is that Tesla would leave Sig owners of the X with cars that are obsolete just 5 months after the announcement... oh wait, nah, that sounds like Tesla SOP to me.

I have a feeling that you'd have to salvage a lot to get that pack to work again so it's probably best to just swap the pack.

To play devil's advocate, piracy and stealing *are* different because in the case of ordinary theft you are actually removing something of tangible value (a beer) from a property owner, but in the case of piracy, you are simply reducing the value of the IP (which is intangible and very hard to...

This P100D leak would have been very easy to avoid for Tesla. Simply don't include P100D assets until after the announcement. The cars aren't going to ship for a good month or two after that, so that's plenty of time to get the updates ready for the cars that do roll off the production line. I...

The Model S is not a protected computer system. You'd have a case if Jason accessed Tesla's internal VPN and stole information from there. But once hardware is in your hands, it's not illegal to look at or reverse engineer the software (regardless of what the EULA says; and remember, Tesla...

Makes sense as a natural upgrade. I wonder if the current image files for Model S cars include 100kWh battery support. Also, I wonder if there will be a 100D non-P battery, or if the 100kWh will be exclusive to the performance models (somehow I doubt that though) Pure speculation: I think that...

Are the 60kWh module layouts otherwise identical to 85kWh cars?

Yep, sounded somewhat familiar (I'm aware Tesla used IXYS IGBTs in the Roadster and believe they use them in the Model S) It's kind of surprising they went for a multi-IGBT solution instead of smaller hybrid modules, like Toyota and GM decided to use for the drive inverters in the Prius and...

DS1054Z master race! :D Are you running it off DC voltage? I tried to run my DS1054Z to test ignition timing in my car, but couldn't get my inverter to power it, as Rigol don't have an inrush limiter on the power supply board (though, the input capacitance is quite low so they can probably get...

72A continuous current might be a limiting factor, you'd have to parallel them up to get near Model S output power (~400kW / 1400A.) Thing is with IGBTs is that they have a negative temperature coefficient. As they get hotter the forward voltage of the device decreases, which causes more current...

IGBT current rating is dominated by hotspots on the die. If the die has imperfections then it may fail at a higher operating current, even if operating at the same temperature. And failure of the IGBT often destroys the gate driver and any other IGBTs in the same half-bridge (looks like 9-12...

More seriously, I think Tesla is actually responsible for the disposal of these batteries though they may want the whole pack back...not just the degraded modules...

Oh God, I think I just became violently ill. That's bad.

Not Sure 3 - is this the battery heater? If it's got high voltage lines going into it, then it's probably the battery coolant heater.

Would insurance cover the damages? (If it were over the deductible of course.) I presume that Tesla insures the cars for the period you possess them, but like most rental policies the deductible is probably very high.

I don't see any good reason why the entire powertrain of the car couldn't be waterproofed. It does seem strange that Tesla didn't do this.

That has the S1nn logo, which is the same company that engineered the stock Tesla sound system and the premium audio upgrade. I think the subwoofer only came with the premium audio system though. Insight: How Tesla developed the in-car audio system for the Model S saloon | What Hi-Fi?

Since the leather is a concern... I know that Tesla made non-leather steering wheels available for some customers. It wouldn't surprise me if they would customise your car to have a non-leather trim with premium package (presuming the ordinary car is leather free?), just make an enquiry...

The 85kWh car should do almost 300 miles at 55mph, so it depends on what the speed limit is. Most roads in California max out at 65mph right?

Surprisingly "beefy" IGBTs for the heater unit (30A & 75A), rated at only 6kW (~15A @ 400V); I'd imagine that they're using a much higher rated element, say 12kW or so, and some duty-cycle modulation to keep average power limited to about 6kW or so, that way the effective heating power stays...

If that's a coax connector, could be an antenna of some kind, possibly for the keyfob.

Do you have any more pictures of the PTC heater controller board? I expected to see resistance wire and high voltage, with the switching being controlled by the DC-DC directly. But, it looks like there's a fair bit of electronics on it, including IGBT or MOSFET switches, which is interesting...

Wonder if you can put a 60kWh pack in an 85kWh car and if it will work (bar the dashboard showing the wrong model or allowing Ludicrous mode with a low-power battery...)

I think this is torque sleep. The motor drive gets turned off in the region of low torque. Might cause a sensation of loss of power at low speeds.

That's the case for many devices. Bathtub curve - Wikipedia, the free encyclopedia

I don't want to seem rude but your somewhat...uhm, "cavalier" attitude to repair of this car makes me wonder how much you paid for this? I hope it wasn't too much. I saw a completely wrecked S (full side on damage) go for over $10k recently at auction, I guess that was parts only as repair...

The turn signal code, brake light control, etc. all run on the body control unit manufactured by Pektron, England. The autopilot probably runs in a dedicated piece of hardware with dual or triply redundant processors.

I'd be more worried about an arc flash from the battery than electrocution myself, FWIW... I'd pull that battery connector as soon as you can.