Test Automobile Fuel Economy

Taking fuel economy measurements that comply with WLTP international standards requires the precise measurement of current integration and power integration for the recharging/discharging of each battery in the system. High accuracy clamp current sensors, the excellent DC accuracy of the PW3390, and the ability to integrate current and power at 50 ms intervals are extremely effective in meeting this application.

Measurement Example

Current and Power Integration Function by Polarity

DC integration measurement integrates the recharging power and discharging power by polarity for every sample at 500 kS/s, and measures positive-direction power magnitude, negativedirection power magnitude, and the sum of positive- and negative-direction power magnitude during the integration period. Accurate measurement of recharging power and discharging power is possible even if there is rapid repetition of battery recharging/discharging.

Optimal Current Sensors for Automotive Testing

Easily connect high accuracy clamp-type sensors without cutting the cables. Sensors operate over a temperature range of -40°C to 85°C (-40°F to 185°F), characteristics that enable highly accurate measurements even inside the engine room of a car.

Equipment Used

POWER ANALYZER PW3390

POWER ANALYZERPW3390

・Basic accuracy (power) of ±0.04% rdg±0.05% f.s

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AC/DC CURRENT SENSOR CT6875,CT6876

AC/DC CURRENT PROBECT684X Series

・20A AC/DC, DC to 1MHz (CT6841-05)

・200A AC/DC, DC to 500kHz (CT6843-05)

・500A AC/DC, DC to 200kHz (CT6844-05)

・500A AC/DC, DC to 100kHz (CT6845-05)

・1000A AC/DC, DC to 20kHz (CT6846-05)

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Technical Article

Effectiveness of Current Sensor Phase Shift When Evaluating the Efficiency of High-efficiency Motor Drives

You can download a catalog that summarizes the applications introduced on the special site.

Request for Catalog PDF Download

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