Improvements in information acquisition and sensor know-how allow exact analysis and optimization of the parts essential for the way forward for sustainable transportation.
HEV and EV testing requires excessive bandwidth, dynamic vary, and correct voltage and present measurement capabilities. This demand stems from the necessity to consider the efficiency of electromotors and inverters, that are central to the propulsion techniques of those superior autos. Information acquisition (DAQ) techniques have developed to satisfy these necessities by providing sooner processing and enhanced capabilities. One instance of such an instrument is the SIRIUS XHS from Dewesoft, designed to facilitate detailed motor efficiency evaluation throughout numerous parameters, together with electrical and mechanical energy, effectivity, and thermal conduct.
The SIRIUS XHS DAQ system boasts a pattern charge of 15 MS/s and a bandwidth of 5 MHz, enabling it to exactly seize high-frequency voltage and present alerts. This high-frequency functionality is vital for assessing and optimizing powertrain parts, notably in situations the place fast adjustments in electrical parameters happen. By offering a high-resolution snapshot of motor and inverter efficiency, the SIRIUS XHS aids engineers in optimizing car powertrains for effectivity and efficiency.
SIRIUS XHS consists of patented SuperCounters that allow engineers to attach torque and RPM sensors instantly. The system helps information switch by the open OPC UA protocol, a preferred customary that ensures compatibility with numerous industrial techniques. Moreover, the info is obtainable over XCP or CAN protocols, simplifying the connection to ECU calibration software program packages.
Dewesoft’s DC-CT present transducer makes use of patented Platiše closed-loop know-how to repeatedly monitor residual magnetic flux, which ends from the differential between the first and secondary currents. Because of this, DC-CT gives the advantages of a zero-flux present transducer whereas lowering energy consumption, permitting the sensor to be smaller. Because of this, DC-CT could be put in the place different sensors might not match.
The DC-CT transducer is utilized in motor testing, inverter evaluation, charging station analysis, and battery testing. Its excessive bandwidth permits it to research harmonics as much as 750 kHz and consider the PWM switching frequencies encountered in motor controllers. When mixed with the SIRIUS XHS DAQ system, the DC-CT transducer facilitates a complete evaluation of electrical and hybrid-electric car parts, notably in driving cycle exams just like the Worldwide Harmonised Gentle Automobile Check Process (WLTP), which is essential for figuring out the vary of BEVs, HEVs, FCEVs, and PHEVs.
For probably the most demanding in-vehicle measurement, Dewesoft gives the SIRIUS-XHS-PWR, a rugged single voltage and single present unit with an built-in DC-CT present sensor. This unit combines SIRIUS XHS and DC-CT know-how, offering protected high-bandwidth measurements with as much as 2000 V voltage and as much as 2000 A present. The chassis is IP67 protected and operates throughout an excessive temperature vary of -20 °C to +70 °C (158 °F).
In abstract, Dewesoft’s DAQ techniques, mixed with superior sensors just like the DC-CT present transducer, present engineers with strong instruments for buying synchronized, correct information from a number of sensors. These applied sciences assist complete testing, evaluation, and optimization of HEV/EV autos, aiding growth throughout numerous phases, from prototyping to efficiency validation. By improvements in information acquisition and sensor know-how, Dewesoft allows exact analysis and optimization of the electrified powertrain parts vital for the way forward for sustainable transportation.
