Search found 6 matches
- Fri Oct 07, 2022 5:46 am
- Forum: Tesla
- Topic: Tuning the small drive unit with charts
- Replies: 126
- Views: 10123
Re: Tuning the small drive unit with charts
udcnom is 360 for me, I did not care about this parameter too much. Engine operates on a voltage from 430 to 370 V. One of the biggest findings from the dyno for me is that powertrain losses are low 6.5% when calculating the engine power from the electrical power. So on the full charge (I'm assuming...
- Thu Oct 06, 2022 8:53 pm
- Forum: Tesla
- Topic: Tuning the small drive unit with charts
- Replies: 126
- Views: 10123
Re: Tuning the small drive unit with charts
Super interesting thread plenty of interesting observations. I was starting a similar discussion some time ago, so good to see some new facts coming in. I finally took my car to the dyno, so hopefully the finding I share will contribute to further understanding of the SDU parameters setup. I persona...
- Sat Oct 31, 2020 4:22 pm
- Forum: Tesla
- Topic: How much power the SDU really makes
- Replies: 9
- Views: 2133
Re: How much power the SDU really makes
I have done some extra testing to figure it out. As Isaac96 was pointing out, the readout from the idc at the inverter was not accurate (BMS data on the left): Screenshot 2020-10-31 at 11.26.43.png Udc looks to be correct. I tend to think that BMS readout is correct. For this run Race Droid Pro has ...
- Sun Oct 25, 2020 5:37 pm
- Forum: Tesla
- Topic: How much power the SDU really makes
- Replies: 9
- Views: 2133
Re: How much power the SDU really makes
Let me draw the udc/idc at the inverter to get the accurate reading. Hard to argue with P=VI. I guess minus ~5% as inverter and motor have some losses. But not 40kW. App works with 10Hz GPS really well for ICE cars, close to dyno numbers. Guess I need to go on a dyno to calibrate for electric powert...
- Sun Oct 25, 2020 3:39 pm
- Forum: Tesla
- Topic: How much power the SDU really makes
- Replies: 9
- Views: 2133
How much power the SDU really makes
hi all, this question was bothering me for some time. What is your experience, anybody dyno'ed your car with the SDU? A friend of mine created this app RaceDroid Pro, coupled with 10Hz GPS (Garmin Glo) I have done some tests. 850kg car's weight (with driver), I went for 10% drivetrain loses and 0.45...
- Sun Oct 25, 2020 3:28 pm
- Forum: Tesla
- Topic: Tesla Parameters Thread
- Replies: 59
- Views: 14600
Re: Tesla Parameters Thread
Hi Manu, Nice post, lots of details. What is your car's weight, probably around 1,5 tonnes, right? I'm asking because I was trying to figure out parameters for a good few months now, first on the old engine and v4 Board, last two weeks I went for a new SDU (burned inverter in the first one) and v6 B...