Web Seminar Archive
Web Seminar Archive
Here you will find all past issues of CSM Xplained to watch and accompanying documents to download.
The use of measurement technology in the high-voltage environment brings with it a number of new regulations and requirements that must be observed. First and foremost is the safety of the operator, which places new demands on the measurement technology.
Temperatures play a major role in the performance and safety of vehicles with electric, fuel cell or hybrid drive systems. If the temperatures in components such as the HV battery deviate significantly from their ideal range, performance losses, accelerated wear or even total failure are the result. Accordingly, temperatures must be measured intensively at many points.
Currents must be measured at many points in the HV electrical system of modern electric vehicles: Be it to analyze charging and consumption processes or to verify protective measures against shield currents. The precise investigation of high-frequency current components requires a wide bandwidth in measurement, and instrumentation in particular can present users with challenges.
DC and AC voltages in the HV environment are characterized by peaks and dips as well as superpositions and have a significant influence on the interaction of all components. To ensure proper operation of the entire system, regulations set limits and must be verified.
For the comprehensive analysis and testing of electric vehicles, physical parameters from numerous sources (HV and low-voltage environment) must be acquired and analyzed. A precise evaluation of the data is only possible through the synchronous acquisition of the data. In addition, the design of such a measurement system should be conceivably simple and precisely tailored to the measurement task.
The performance, operational reliability, fast-charging capability and aging of HV batteries depend crucially on comprehensive and good thermal management. For this, it is important to know the temperature profiles within the battery that occur in different operating states in as much detail as possible. Battery management systems (BMS) have the task of operating the battery within its "comfort temperature".
The development of high-performance thermal management systems requires extensive thermal analyses.
The electrification of mobility in particular has intensified competition among vehicle manufacturers. At the same time, the amount of data generated in modern vehicles is exploding as a result of progressive digitization. Extensive recording of fieldbus data, e.g. from control units by means of powerful data loggers, is becoming increasingly important.
To remain competitive, field tests and fleet tests must be as reliable and efficient as possible. For this purpose, worldwide data transmission of the recorded measurement data by means of modern wireless technologies is essential. In addition, it must be possible to manage large vehicle fleets easily and conveniently.
Learn how to meet these challenges in this issue of CSM Xplained.
In electric vehicles, high currents and voltages often have to be measured in extremely confined spaces and on short high-voltage power cables. Nevertheless, high sampling rates and measurement accuracy are required.
In this episode of CSM Xplained, we show how such measurements are performed.
The components of electric vehicles are being further developed and optimized. For this, multi-channel, electrical power measurement is necessary. It is the basis for the comprehensive analysis of the efficiency of inverters, electric motors, converters or charging systems.
In this episode of CSM Xplained, learn how this is easily done with the Vector CSM E-Mobility Measurement System.
Accelerations must also be measured safely and precisely in high-voltage environments. For example, HV batteries are used as load-bearing elements in the vehicle frame. Accordingly, extensive investigations of fatigue strength are required on high-voltage components, but also within the HV environment.
Type HV STG4 pro BS20
Testing of durability poses great challenges for the measurement equipment to be used, especially in the high-voltage environment. For example, the so-called "swelling" is to be investigated on HV battery cells. For this purpose, strain gauges are primarily used whose output signals, some of which are very small, must be recorded precisely, reliably and safely at a high voltage potential.
Type HV STG4 pro BS20
An essential aspect in long-term utilization of measurement technology is the regular calibration of the measurement amplifiers. In the case of high-voltage safe measurement technology, not only should the modules be part of a preventative maintenance and calibration schedule like other equipment, the high-voltage insulation test, which is urgently required according to EN 61010, must also carried out on a regular basis.
In this webinar, we will show you our solutions for calibration and HV insulation testing and deal with the following topics:
The development of electrically driven vehicles requires optimization of both the power electronics and the ECU application. In most cases, they influence each other. Merely measuring voltages and currents is not sufficient as a measure for optimizing the power electronics. Only derived values such as active power and efficiency are meaningful.
With CSM measurement technology and Vector measurement software with integrated eMobilityAnalyzer function library, ECU internal values can be measured and adjusted while analog measurement signals can be synchronously acquired and analyzed. Based on real measurement data, we present our joint solution.
Fuel cell drives require an extensive amount of testing and measurement during the development phase. This is because the combination of electrochemical components and power electronics places special requirements on the measurement technology.
In this webinar, we will take a close look at measurements on fuel cells and address the following questions:
Mobile machines must comply with increasingly stringent emission limits, which inevitably means that working functions, the traction drive or even the complete machine are moving toward electrification. This poses completely new challenges for the testing of mobile machines, as high-voltage electrical variables must now also be measured and recorded in field tests.
In this webinar, we address these challenges and answer the following questions: