The aim of this project was to record data from a VW ID.4 using RossTech VCDS Hex V2 Diagnotic Tool.
The recorded data was then analyzed to understand in a simple way the relationship between driving style and battery energy consumption.
The tests were conducted in October 2021. The VW ID4 had been kindly lent to 42 Wolfsburg by CARIAD.
Setup of the datalogger : RossTech VCDS Hex V2 Diagnotic Tool
Results
With 3 drivers using the same route, we can notice that driver #2 has the highest battery energy consumption : 18.4kWh.
From the data logged from the vehicle, we can see that the accelerator pedal trace in red for driver #2 has a more aggressive shape than for driver #3 in green. Hence the bigger current draws (negative values) causing a bigger battery state-of-charge-depletion (for instance at t≈550s)
We can also see driver #2 has higher vehicle speed compared to driver #3 from t≈920s to t≈960s, this resulting in bigger current draws (negative values) leading to bigger battery state-of-charge-depletion.