Effect of Air Conditioning on Power/Speed?

[SSedan]

I used to modify mid 90s V8 cars and way back then the AC was programmed to shut down above a certain throttle position, and we could manipulate that point with reprogramming software.

So I think even in the case of ICE this is being overstated. Betting a good part of the reasoning is to not run the compressor at such high rpm and not beat the hell out to the compressor clutch which could be slipped with pulse width modulation.

Running AC while trying to accelerate briskly does run the risk of dripping water ahead of the back tires.

 

[TomT]

No, it doesn't work that way. The motors don't max out the battery.

Yea it seems that if you are using 1kW to run the HVAC that is 1kW NOT available to power the motors.

 

[vickh]

No real effect. Air conditioning on an internal combustion vehicle can steal a substantial amount of horsepower (ten or more depending on the size, age and design system).

The air conditioning system on a Tesla only draws a few kW of power from the battery at maximum output and much less at low output.
.

fan speed make a big difference for kW? I'm more concerned about range

 

[TomT]

Nope, the fan pulls a negligible amount of power.

fan speed make a big difference for kW? I'm more concerned about range

 

[vickh]

Nope, the fan pulls a negligible amount of power.

perfect I like it full blast in the AZ heat.

On the other hand I was hoping for more range than now, in our mild winter (no heat needed)