Tesla Model S Update 6.2 Allows For High-Speed Passing

APR 13 2015 BY ERIC LOVEDAY 9

High-Speed Passing

High-Speed Passing

We don’t see it mentioned in the release notes, but with software update version 6.2, the Tesla Model S P85D can now perform high-speed passing provided that sufficient battery energy is available and powertrain temperature is within a certain range.

It seems that 155 MPH is not an all-the-time top speed, but rather it’s achievable when all the conditions are right and only for a limited amount of time.

Here’s video (apologies for the shaky footage) of the new 155 MPH (250 km/h in video) temporary top speed for the P85D:

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9 Comments on "Tesla Model S Update 6.2 Allows For High-Speed Passing"

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Wow! Big Red! The Speedometer Numbers change from White to Red at 235 Kph! And – stays Red all the way up to – 247 Kph! (The Max I could see/read in the unfocused wiggly video! Time for a Hard Mounted GoPro Hero 4 to get the best shots! – http://gopro.com/)

Like any spacecraft, you can’t use the highest Warp Drive Setting forever. The ship has to protect itself from damage. 😉

Should still be good for a new series of 0 – 60 Drag Race Videos, though. And be a good distraction until more Model X news leaks out.

Sorry, “Burst” mode.

Is there anyone who have tried to determine what the maximum sustainable speed is?

And/or if someone has tried how long/far you can drive at a certain speed before limitation kicks in?

I definitely don’t need nor want 250 km/h. But I do want/need/like at least 140 km/h as a sustainable speed but anything above 160 km/h sustainable would be overkill for me.

Someone will likely post a chart with the “Burt Mode” speeds relative to SOC and Temp at some point. *shrugs*

I’m pretty sure the previous 135mph electronically limited top speed was the sustainable speed.

It wasn’t sustainable, at least not with the single-motor Model S. At least two car review magazines tested the Model S on a racetrack, and found the motor overheated and the car automatically went into reduced power mode (not “turtle” mode, just with reduced top speed) within a very few minutes.

That’s to protect material, but I doubt it’s the motor(s).
Motors are very heat tolerant, specially if the are liquid cool like the one in Tesla.
But if this is so, those motors ain’t that good or over saturated.
I’ll bet the battery is at stake, then the inverter, and last if possible? the motor.

If you make a 1hp/kg motor, yes, it’s very heat tolerant. If you make a 4-5hp/kg motor, it’s not so easy to remove heat at peak performance. Margins are tight, making the motors more susceptible to damage from heat expansion.

It’s hard to remove heat from the rotor. Tesla has a way of doing liquid cooling, but there are limits.