I own a 2018 M3 RWD and the following is some information I gathered using SMT.
With the car not plugged and the ambient temp around 48F the car draws 3.5KW to heat the traction battery and about 7KW max to heat the cabin for a max total of 10-11KW. When the car is plugged into my [email protected] it supplies 5+KW of the 11KW. The only option I found that would heat the cabin and NOT heat the traction battery, via the traction motor, was camping mode. I did not run the test for very long so I am not sure at what cell temp the battery heating would terminate? I do know that when actively charging the battery heating to accept a 22mph charge rate stops at around 54F. I think heating the traction battery while heating the cabin is new? I can see times where heating the cabin and NOT heating the traction battery might be my preferred option and the only way to do so is using CAMP mode.
I also monitored the rear motor power, motor torque and brake variables and it appears to regen down to a complete stop, which surprised me, and then after about a second the brake is applied. These reading were observed while set to the single pedal driving mode.
With the car not plugged and the ambient temp around 48F the car draws 3.5KW to heat the traction battery and about 7KW max to heat the cabin for a max total of 10-11KW. When the car is plugged into my [email protected] it supplies 5+KW of the 11KW. The only option I found that would heat the cabin and NOT heat the traction battery, via the traction motor, was camping mode. I did not run the test for very long so I am not sure at what cell temp the battery heating would terminate? I do know that when actively charging the battery heating to accept a 22mph charge rate stops at around 54F. I think heating the traction battery while heating the cabin is new? I can see times where heating the cabin and NOT heating the traction battery might be my preferred option and the only way to do so is using CAMP mode.
I also monitored the rear motor power, motor torque and brake variables and it appears to regen down to a complete stop, which surprised me, and then after about a second the brake is applied. These reading were observed while set to the single pedal driving mode.
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