Hardware

Broadband measuring inputs, high sampling rates and robust design combined with high flexibility – this unifies DEWETRON in its instruments of DEWE-PM series; be it the DEWE-820 as engine test bench solution or the DEWE-2600 that is battery-powered. They all have the modular construction in common that allows an arbitrary number of current and voltage input channels. Temperature, charge or bridge amplifiers can also be used as can CAN bus adapters or counter interface for e.g. tachometers. 

For highly accurate current measurements zero flux transducer are used that not only feature high dynamics (startup current versus idle current with an accuracy of 0.05 %) but also high band-width. As for voltage inputs also in this case several 100 kHz are a must (-3dB@700kHz). Sampling rates of up to 1 MHz allow exact analysis of pulse packages of the frequency converters.

Software

The software DEWESoft with its option POWER was especially developed for the electric power measurement. It includes the conventional and approved DEWESoft functions and moreover provides all parameters that are necessary for electric drives:

• P, Q, S, PF
• U, I, cos Phi
• Harmonics
• FFT up to 500 kHz
• M, n
• X/Y recorder
• Sound
• Vibration
• Rotational and torsional vibration

Several Power Modules at same Time

With the DEWESoft power module several power systems can be measured at the same time. Motors:e.g. UMotor 3~/UDC/UBattery

Sound and Vibration    

Exact and high-resolution noise level measurement according to IEC 60651, 60804, 61672. With its user-friendly operator interface DEWESoft brings the sophisticated noise/acoustics analsyis to the user.

Rotational and Torsional Vibrations

With this module you can easily measure rotational vibrations, bearing damages, unbalances, etc. and can record - in parallel to the power data discussed so far - as well as evaluate them.

Power Analyses on Combustion Engines CA-Option

Should, as it is the case with classical hybrid vehicles, combustion engines also be in use beside electrical drive systems, then these engines can simultaneously be analyzed with the DEWESoft-CA.   

Drive Ability Tests

DEWESoft offers a wide range of functions for drive ability tests that can, of course, be used simultaneously. GPS systems for deceleration measurements, in parallel to the recuperation of drive systems, are only one of several possibilities provided.

CAN-Bus

Beside a number of sensors, also direct CAN-bus systems can be provided. CAN-bus data can here be used by the DEWESoft as all other measurement channels.

Video

The use of synchronous DEWESoft VIDEO functions allows the parallel storing of video data and measurement values and opens a wide range of application possibilities – whenever optical information is needed.

Remote Control

With the remote control system the instruments can be configured and the data can be evaluated from afar – for example while being in your office. The transmission of data from vehicle to vehicle via WLAN is also a special feature.