I had Michelin X-Ice 3 tires put on the rear of my 3 a couple days ago, as the original rear tires were down to 1/32" at 16,000 miles. No, I didn't rotate my tires, there's no sense in having 4 evenly worn tires heading into winter! The X-Ice 3's may be good winter tires, but they really messed with the regen. My green "regen" bar wanders all over the place at low speeds, high speeds, and in between.
One example - yesterday I was on the PA Turnpike, and with my exit coming up, I started slowing down from 90 mph or so. The green regen bar only went about half as far into regen as it had room for, before hitting the dots, then it went to less regen, then to NO regen, all before I had coasted down to 70 mph. Then the regen came back on stronger and was sort of variable, I had to use the brake pedal to slow the car down! After this I started paying attention to the regen in different driving speeds and conditions, and it's not good.
My guess is that the sponginess of the winter tire compound is having a torquing / untorquing effect on the axle shafts, and with the Tesla traction control polling up to 1000 times per second, it is freaking it out. I think a solution would be to have a winter tire setting in driving options, and for regen purposes, the computer would check for torque readings less often, like maybe an average reading over a tenth or quarter or half a second.
Hey Tesla, when am I going to get my free EAP for being your beta tester? There's snowy mountain areas out in California, this should have been researched more.
One example - yesterday I was on the PA Turnpike, and with my exit coming up, I started slowing down from 90 mph or so. The green regen bar only went about half as far into regen as it had room for, before hitting the dots, then it went to less regen, then to NO regen, all before I had coasted down to 70 mph. Then the regen came back on stronger and was sort of variable, I had to use the brake pedal to slow the car down! After this I started paying attention to the regen in different driving speeds and conditions, and it's not good.
My guess is that the sponginess of the winter tire compound is having a torquing / untorquing effect on the axle shafts, and with the Tesla traction control polling up to 1000 times per second, it is freaking it out. I think a solution would be to have a winter tire setting in driving options, and for regen purposes, the computer would check for torque readings less often, like maybe an average reading over a tenth or quarter or half a second.
Hey Tesla, when am I going to get my free EAP for being your beta tester? There's snowy mountain areas out in California, this should have been researched more.
