DOI: 10.21227/97jg-rq10
title: High Bandwidth On-Board DC Voltage and Current Measurements of the Main Inverter of an Electric Vehicle

description: The dataset contains high bandwidth voltage and current measurements of the main inverter of an electric vehicle. They were acquired from a Mercedes-Benz E-Vito on a testing ground in many different Operation Points (OP) listed in the following table: File NameNumber (OP)00_zero_power_10ms_div.hdf5000, 00101_idle_power_10ms_div.hdf5002, 08702_full_torque_10ms_div.hdf50 km/h: 003 - 01010 km/h: 01120 km/h: 012, 081 - 08630 km/h: 01340 km/h: 01450 km/h: 01560 km/h: 016, 01765 km/h: 01803_full_recup_10ms_div.hdf565 km/h: 025; 026 - 03360 km/h: 02450 km/h: 02340 km/h: 02230 km/h: 02120 km/h: 02010 km/h: 0190 km/h: 08004_const_speed_10ms_div.hdf510 km/h: 034 - 05320 km/h: 054 - 06130 km/h: 062 - 07440 km/h: 076 - 07905_random_drive_10ms_div.hdf5088 - 23406_random_drive_100ms_div.hdf5241 - 31707_random_drive_backwards_100ms_div.hdf5318 - 33508_random_drive_100ms_div.hdf5342 - 46409_transient_500ms_div.hdf5236 - 24010_transient_500ms_div.hdf5336 - 33811_transient_5s_div.hdf533912_transient_2s_div.hdf534013_breaking_200ms_div.hdf5341 All data are digitized using a 4-channel oscilloscope with a manual trigger. The binary data are parsed and sorted into HDF5 files [4], which are listed All data are digitized using a 4-channel oscilloscope with a manual trigger. The binary data are parsed and sorted into HDF5 files [4], which are listed in the table above. A python example for data processing is included in the repository. If a speed is given, it is taken manually from the speedometer of the car. The size of the testing ground limited the maximum speed to 65 km/h. For static operation points, multiple measurements are taken for redundancy purposes. For some transient operation, repetitions were necessary if speed did not match the target value. At the beginning (OP 000), the battery was fully charged (User State of Charge (SoC) 100%), the ambient temperature was about 10°C and the altitude was 50 m above sea level. The file names indicate the action of the operation point, e.g., zero power, full torque, full recuperation etc. The full torque measurements were taken at full throttle, and for the full recuperation measurements the brake pedal was pressed until the power indicator in the car showed maximum “CHARGE”. The number of the OPs show the consecutive order of the measurements. The vehicle was not charged in between, leading to a decreasing State of Charge (SoC). The file names also indicate the time resolution settings of the oscilloscope. The time resolution setting of the oscilloscope was set to maximum: 10 ms per division is related to sampling time of 8 ns or a sampling frequency of 125 MHz. The metadata is included in each dataset as attributes with name-value pairs. The python example included in the repository contains an info-section which displays all attributes/metadata of a dataset. With increasing measurement time, the sampling time also increases. Technical Data:- Oscilloscope: LeCroy HDO4054A; bandwidth (-3dB) DC – 500 Mhz; 12-bits; sample rate (Repetitive) 125 GS/s; memory length 12.5 Mpts/ch [1]- Differential voltage probe V1: Testec TT-SI 9101; bandwidth (-3dB) DC – 100 MHz [2] -&gt; DC+ to DC-- Current sensor I1: PEM CWT3; bandwidth (-3dB) 6.2 Hz – 30 MHz [3] -&gt; DC+- Current sensor I2: PEM CWT6; bandwidth (-3dB) 3.2 Hz – 30 MHz [3] -&gt; DC-- Current sensor I3: Tektronix A6304XL; 500 A AC/DC current probe; bandwidth (-3dB) DC to ≥ 2 MHz [4] -&gt; DC+ @shielded cable- Electric Vehicle: Mercedes-Benz 639/4 - E-Vito, 60 kW (70 kW boost), 300 Nm, 2318 kg (G) / 2940 kg (max), vmax: 89 km/h, battery: 32 kWh (brutto 36 kWh) [5] References[1] Teledyne LeCroy, “HDO4000A High Definition Oscilloscopes (200 MHz - 1 GHz) Datasheet,” 2019. [Online]. Available: http://cdn.teledynelecroy.com/files/pdf/hdo4000a-oscilloscopes-datasheet.pdf[2] Testec, “TT_SI-9101: Instruction Manual,” [Online]. Available: https://www.testec.de/en/assets/pdf/TT-SI/TT-SI-9101_Manual_EN.pdf[3] PEM, “CWT Ultra Mini,” 2018. [Online]. Available: http://www.pemuk.com/Userfiles/CWTum 30MHz/CWT Ultra-mini_0518(Web).pdf[4] Tektronix Inc., “A6304XL 500 Amp AC/DC Current Probe Instructions,” [Online]. Available: https://de.tek.com/manual/a6304xl-500-amp-ac-dc-current-probe[5] Europäische Gemeinschaft - Bundesrepublik Deutschland, “Zulassungsbescheinigung Teil 1 (registration certificate part 1),” Jun. 2010.