R2 Highway Efficiency Test: 80 MPH vs 70 MPH Changed Everything

[EVtowing]

This just highlights the need for the govt. to modernize the EPA range test cycles. They are certainly not taking in to account people driving 80mph.

The EPA should not include illegal speeds in their test cycle, that would just encourage people to break the law.

This thread reminds me of Tesla Motors Club forum threads from 13 years ago. Yes, energy efficiency decreases dramatically as speed increases. Slow down, go farther before recharging, and save some money.

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[lordsutch]

The EPA should not include illegal speeds in their test cycle, that would just encourage people to break the law.

Driving 80 mph is legal on at least some highways in nine states. Incidentally one of the current speed test cycles (US06), which is included in the EPA range calculation, includes very brief acceleration to 80 mph simulating a highway passing scenario, although the average is only 48 mph.

 

[ksurfier]

The EPA should not include illegal speeds in their test cycle, that would just encourage people to break the law.

This thread reminds me of Tesla Motors Club forum threads from 13 years ago. Yes, energy efficiency decreases dramatically as speed increases. Slow down, go farther before recharging, and save some money.

Have you ever been to Utah, Texas, Montana, Wyoming, or a number of other states? There are plenty of places where the road stretches for miles with little traffic. As AI/self-driving technology matures, it’s not hard to imagine some roads eventually allowing higher speeds instead of lower ones.

 

[Gen(R3)Xer]

I’d say that’s more of a nipple than a cone.

 

[R2 Fan]

A parabolic Lexan cone, that places the car completely in its wake, would be more effective. Half of a cone to be precise.

I wonder if a catenary cone would be even better?

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