Loved HTMX when I was writing code by hand. For my side project, I'm using Inertia so it acts like a request-response cycle, Vue+TS and Django+Pydantic so any hallucinations are caught by type checkers at both sides.
Does formal law systems lead to a fraction of the lawyer work hours and ambiguity in spirit of the law? Been noticing legal LLM tools which have to crunch entire libraries.
All motors are generators. It's only a matter of how you are creating the magnetic field with the stator windings.
In order to generate a higher regen, you'd have to somehow get more energy in the motor first... and since its only rated for 200kW, good ol' physics limits you, IF thats all the energy you put into the system.
If you roll it down a hill, or do something exotic like inverting the magnetic fields .... you can exceed the motor rating. But thats usually not recommended because the motor driver itself isnt rated to handle that power.
In general the rating of a motor is about heat dissipation, which in turn is a function of efficiency. What this means is you can exceed the rating by "some amount" for "some amount of time". Many motors are rated for not what they can deliver, but what they can deliver continuously without overheating, but you can get a lot more power out of them for a short time.
> can a car with 200kW propulsion have a 400kW regen
At the motor level it should be the same, in propulsion you’re converting current to torque and in regen you’re converting torque to current, with the same hardware. The high voltage wiring is the same and will set the same limit on current regardless of direction.
I believe bidirectional inverters are generally symmetrical as well, so that should not be a factor.
Which I reckon leaves two factors:
1. Battery C rates, afaik pretty much all chemistries have a higher discharge rate than charge rate, especially when trying to maintain them for a long time, so by that account regen power would at most be the same as propulsion (if the entire power train is sized for the battery’s charging rate).
2. Artificial limitations, obviously you could always artificially under-prop, though that seems unlikely outside of niche applications.
tldr: I don’t think so, except on a technicality (that you can artificially hobble propulsion).
How far fetched is the idea to use Super-Capacitors to take up the energy generated by braking and then slowly feeding it to the battery at a rate that it supports?
The energy density on super capacitors is pretty bad. If you imagine full power 200kW braking for 5 seconds that's 1 mega joule and at a best case 8 watt hours per liter you're going to need 35 liters minimum. Really you probably need to double that so you can float up and down and never fully saturate the capacitor as power inflow is going to drop as you get closer and closer to fully charged.
So how do you stop then if the batteries are (close to) fully charged? You'd need to shunt that power into a big resistive load, and then dump that heat.
I’ve long wondered why we don’t ditch the friction brakes.
Just have the battery stop charging and report 100% full when it’s only 98% (or whatever) so there is enough capacity for some solid emergency stops in the first few minutes of driving.
Even if you have to resort to the resistor, who cares? It’s not like this is a common scenario
That's fine, until someone charges their cabin up in Truckee and decides to drive down 80 to the central valley (a hour or so drive you can do in neutral).
Regenerative braking also loses a lot of its stopping power at slow speeds. Going from "slowly rolling forward" to "full stopped" takes a lot longer than the instantaneous it is with friction brakes.
Am I reading you right that breaking power (that you want to regenerate in the system) >> speeding power? Obvious now I come to think of it, and still pretty nifty new thing learned if true!
Tangential, is there a "test suite/CI" for AI writing legal documents? Long back in terms of AI progress, a lawyer filed something with hallucinated sources. Do new tools prevent this?
Namma Yatri is doing the same in India. Flat fee and your fare instantly goes to the drivers wallet. Previously, drivers at late night ask me to cancel the ride and hand over cash so they can buy petrol, Uber takes a long time to settle. Seems Uber responded to compete with them and maybe increased subsidy for riders.
I always wonder what Uber is doing with all that money. I know a former employee talked about the vast number of screens it has [0] but still, if these sorts of companies can beat them then I'm not sure what the Uber value proposition is, especially as it gets more expensive.
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