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HV-measurement module

Measurements in hybrid and electric vehicles

Klaric has developed a HV-measurement module. The Klari-Quad2 comes with a galvanically isolation of continuous 1500 VDC for safe current, voltage, and temperature measurements in electric and hybrid vehicles.

(Source: Klaric)

The Klaric high voltage probes and HV-measurement adapters are suitable for use in H/EVs. Current will be measured via a calibrated shunt resistor, voltage via a resistor divider, and the temperature with a thermocouple or PT100/1000. The suitable HVI/U-Combi-Probe allows simultaneous measurements of current and voltage with just one input.

Data is output via two independently configurable CAN 29-bit identifier extended frame format interfaces with max. 2 x 8000 frames per second and / or the 100 Mbit/s Ethernet interface. The Ethernet interface supports the free Klaric server software as well as XCP-on-Ethernet. The user can assign each measured variable individually to one or more output interfaces.

The measurement modules Klari-Therm HV 1500 V and Klari-PT HV 1500V are developed for temperature measurement in high voltage environment with Type K thermocouples (Klari-Therm HV 1500 V) or PT100/1000 (Klari-PT HV 1500 V) (Source: Klaric)

According to the company, the auto-range functions automatically use the best measurement input range for the measured signal. This allows high resolution measurements of currents and voltages. Other functions of the product are average and moving average filter, root mean square, frequency, power, and work calculation for AC and DC signals. The module recognizes when a Klari-HV-Probe is plugged in and reads out the probe type and the calibration values (plug and measure) what lowers the effort of configuration.


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