Re: BMW EV - Neue OBD2 iOS/iPhone app für den i3
Verfasst: Mi 13. Jan 2021, 21:26
Hi Max, many thanks for adding me in your test group.
Today I've installed your app on my IPhone 8 and it runs smoothly so far. The connection with my OBD adapter VGate 4.0 was established immediately after starting the app and the values are transmitted to the IPhone.
My experience with the app during my 13km ride was as follows.
Register EV:
At beginning (i3 on, Position P, heating off, driver seat heating on, Eco mode) At end (i3 on, Position P, heating off, Eco + mode) - Different capacities, cell temperatures and cell voltages are shown
=> Do you know why 3 different values for each item are available?
- What is the Cell Res. Factor and is it plausible that the first value is strongly deviating from the two others?
- Cell at SOC is deviating from the BMW Connected App and the Electrified App (71.99 to 73.19% app vs. 68.0% BMW app & Electrified app)
- Battery temperatures seems not to be updated while driving (7,99 °C at beginning and end with driving distance of 13km and 250m elevation meters)
- Battery power seems not to be plausible (-14.25 kW when the i3 is not running and heating is off; Electrified app is showing -0,27 kW)
Electrified App for comparison (i3 on, Position P, heating off, Eco + mode) Register General:
During driving (heating off, driver seat heating on, Eco mode, cruise control 82 km/h) - Pedal throttle is shown as "not available"
- Consumption: This is the average consumption (since starting the OBD connection), correct?
=> Value seems not to be correct, because vehicle's BC is showing a significantly higher value (132 Wh/km app vs. 169 Wh/km BC)
- Temperature effective inside is a nice feature
=> Do you know where the temperature sensor is located in the cabin?
- Speed is deviating from the vehicle speedometer (79.2 km/h app vs. 82 km/h speedometer)
=> Do you measure the speed with the GPS of the vehicle?
- Various ranges are very confusing:
=> What's the differences between the different MCV ranges?
=> Combi Ranges: Min. range seems to be the range in the Comfort mode, max. range seems to be the range in the Eco + mode
=> But max. range is lower as the range in the vehicle display in Eco + mode (233km app vs. 265km vehicle display)
Charging:
- not tested yet
REX:
- not available in my i3
Thanks again for this promising app and your great work. I look forward about the future progress of this project. I would be happy if you have the possibility to implement a logging function for the different values (over the running period of the app) giving the possibility to analyse e.g. the power consumption of the i3 subject to driving speed and temperature.
Today I've installed your app on my IPhone 8 and it runs smoothly so far. The connection with my OBD adapter VGate 4.0 was established immediately after starting the app and the values are transmitted to the IPhone.
My experience with the app during my 13km ride was as follows.
Register EV:
At beginning (i3 on, Position P, heating off, driver seat heating on, Eco mode) At end (i3 on, Position P, heating off, Eco + mode) - Different capacities, cell temperatures and cell voltages are shown
=> Do you know why 3 different values for each item are available?
- What is the Cell Res. Factor and is it plausible that the first value is strongly deviating from the two others?
- Cell at SOC is deviating from the BMW Connected App and the Electrified App (71.99 to 73.19% app vs. 68.0% BMW app & Electrified app)
- Battery temperatures seems not to be updated while driving (7,99 °C at beginning and end with driving distance of 13km and 250m elevation meters)
- Battery power seems not to be plausible (-14.25 kW when the i3 is not running and heating is off; Electrified app is showing -0,27 kW)
Electrified App for comparison (i3 on, Position P, heating off, Eco + mode) Register General:
During driving (heating off, driver seat heating on, Eco mode, cruise control 82 km/h) - Pedal throttle is shown as "not available"
- Consumption: This is the average consumption (since starting the OBD connection), correct?
=> Value seems not to be correct, because vehicle's BC is showing a significantly higher value (132 Wh/km app vs. 169 Wh/km BC)
- Temperature effective inside is a nice feature
=> Do you know where the temperature sensor is located in the cabin?
- Speed is deviating from the vehicle speedometer (79.2 km/h app vs. 82 km/h speedometer)
=> Do you measure the speed with the GPS of the vehicle?
- Various ranges are very confusing:
=> What's the differences between the different MCV ranges?
=> Combi Ranges: Min. range seems to be the range in the Comfort mode, max. range seems to be the range in the Eco + mode
=> But max. range is lower as the range in the vehicle display in Eco + mode (233km app vs. 265km vehicle display)
Charging:
- not tested yet
REX:
- not available in my i3
Thanks again for this promising app and your great work. I look forward about the future progress of this project. I would be happy if you have the possibility to implement a logging function for the different values (over the running period of the app) giving the possibility to analyse e.g. the power consumption of the i3 subject to driving speed and temperature.