Currently, the electrification of transportation equipment is accelerating worldwide at an unprecedented pace. According to data from the International Energy Agency (IEA), global electric vehicle (EV) sales reached a record high of 17 million units in 2024. Sales are expected to exceed 20 million units in 2025, accounting for more than one-quarter of global new-car sales.*1 As electric vehicles rapidly become more widespread, demand for high-accuracy evaluation testing is no longer limited to laboratories, but has expanded to practical applications such as testing under harsh operating conditions and on-site evaluation tests.

*1: https://www.iea.org/news/more-than-1-in-4-cars-sold-worldwide-this-year-is-set-to-be-electric-as-ev-sales-continue-to-grow

While conventional large, high-accuracy power analyzers remain essential for precision evaluation in laboratories, highly reliable power measurement is also required for on-road vehicle testing under conditions close to actual driving. The PW4001 Power Analyzer successfully meets engineers’ needs for measuring inverter signals, rapid power fluctuations, battery operating time, and more.

1

Laboratory-Class High Accuracy Even in On-Site Evaluation Tests

No matter how small the input signal is, the PW4001 enables highly reliable power measurement, allowing accurate evaluation of energy consumption and driving range. Its compact design ensures a high basic accuracy of ±0.04% from DC to 50/60 Hz.

2

High-Speed, Wide-Bandwidth Measurement Performance

Accurately evaluates the power conversion efficiency and switching losses of SiC inverters. With a 2.5 MHz sampling rate and 600 kHz bandwidth, it can also accurately capture high-frequency power generated by PWM control.

3

Rugged and Portable Design for On-Road Vehicle Testing

To meet the requirements of on-road vehicle testing, the PW4001 features a lightweight design, weighing only 4.6 kg, making it easy to install in a vehicle. It also supports an external DC power supply. With an operating temperature range of -20°C to +50°C, it delivers stable and reliable power measurement even under harsh environmental conditions such as extreme cold.

4

Safe and Quick Test Setup

The PW4001 supports direct acquisition of voltage values via vehicle CAN signals, allowing engineers to perform wiring safely. Connection via the vehicle’s OBD-II interface enables quick test setup.

■ Type Approval and Specification Testing

For power measurement of EVs, HEVs, PHEVs, FCVs, and other vehicle types, the PW4001 supports highly reliable measurements compliant with international test standards such as WLTP and SAE J1634, making it particularly suitable for type approval and specification testing.

■ On-Road Vehicle Testing

Thanks to its lightweight design and DC power supply capability, the PW4001 can safely and flexibly meet the requirements of on-road vehicle testing. Whether used with passenger vehicles, two-wheelers, or electrified mobility solutions (e-Mobility), it enables high-accuracy measurement under actual driving conditions.

■ Battery Evaluation and Durability Testing

In addition to EV applications, the PW4001 can also be flexibly applied to research in future energy fields such as energy storage systems (ESS) and backup power supplies for data centers. Its stable and highly repeatable measurement capability supports accurate evaluation of long-term ESS battery efficiency, thermal characteristics, cycle life, and durability.