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Efficiency Measurement of a High-Voltage Powertrain Download

Electric powertrains have to be tested during many development phases. The overall efficiency is an important parameter for further optimization. In this application example, you can learn how the overall efficiency of fully integrated electrical powertrains is calculated in real time.

Efficiency Measurement of a High-Voltage Powertrain - Letter Download

Experimental Stress Analysis on Crane Booms Download

Mechanical stresses and their direction must be determined for the structural design of many components with experimental stress analyses. The exact knowledge of the structural load-bearing capacity is particularly relevant for the development of components on construction machines that are later subjected to heavy loads. This application report shows how CSM measurement modules accurately measure stress at numerous locations during repeatable experimental stress analysis on telescopic crane booms.

Experimental Stress Analysis on Crane Booms - Letter Download

Fast Measurement of Voltage and Current Flows on E-Machines Download

During the development of the electric power train for electric vehicles, voltage and current characteristics at the AC phases of the electric motors must be recorded and analyzed. The HV Breakout Modules are particularly suitable for this purpose, as they measure required values extremely quickly, synchronously and precisely.

Fast Measurement of Voltage and Current Flows on E-Machines - Letter Download

Formula E case study Download

Motorsport places the toughest demands on man and machine; and also on the measurement technology that is indispensable for development. ABT Sportsline, together with Audi and Schaeffler, has used CSM's measurement technology in Formula E to obtain precise data during the development and testing of the racing cars. Find out in the following application report where CSM measurement technology was used.

Formula E case study - Letter Download

Fuel Cell-Electric Drive Functional Test Download

Fuel cell-powered vehicles are a complement to pure battery electric-powered vehicles in electromobility. An electrochemical reactor is used to generate electrical energy that is available for the drive and other vehicle systems. The interaction of this reactor in the fuel cell stack with the other components in the powertrain is tested on test benches. In this example, you will learn how the necessary measurements are carried out simply and synchronously.

Fuel Cell-Electric Drive Functional Test - Letter Download

High-Speed Power Measurement on an E-Scooter Download

The range of electric vehicles determines their suitability for everyday use and acceptance by users. For a steady increase in range, the electric power trains and their components must be continuously optimized. The following example shows how an efficient power measurement in the low-voltage range is carried out. Similarly, such a measurement could also be made in the HV range.

High-Speed Power Measurement on an E-Scooter - Letter Download

High-Voltage Safe Measurements at Charging Stations Download

The everyday use and acceptance of electric vehicles depends on the widespread availability of charging facilities. Various charging concepts are required for the expansion of the charging infrastructure and are being tested in detail by the operators of charging station networks. High-voltage safe current and voltage measurements must be carried out at many points. The following example shows how this can be done.

High-Voltage Safe Measurements at Charging Stations - Letter Download

High-Voltage Safe Strain Measurement in HV Batteries Download

The housings of HV batteries not only serve to protect the battery cells and electronics inside them, but are also a structural part of the vehicle frame. Mechanical loads must be measured for an optimal housing design - inside and on the outside of the housing. This example shows how the necessary measurements are made easily and safely with strain gauges and strain gauges measurement modules.

HV safe Strain Measurement in HV Batteries - Letter Download

Investigation of the Thermal Runaway in Vehicle Batteries Download

Thermal runaways in the HV batteries of electric and hybrid vehicles can lead to fires that are difficult to extinguish and endanger passenger safety. Extensive testing is required to ensure that HV batteries are designed safely with suitable protective mechanisms. In this application example you will learn how the necessary temperature measurements can be carried out at many points in the battery.

Investigation of the Thermal Runaway in Vehicle Batteries - Letter Download

Measurement Technology for the Analysis of Electrified Engines Download

To optimize efficiency and driving comfort, a German car manufacturer focuses on electrified gasoline engines. Key component of this technology is the integrated starter generator (ISG). For its best possible application, fast current and voltage measurements are indispensable.

Measurement Technology for the Analysis of Electrified Engines - Letter Download

Measurement Technology for the Analysis of Highly Dynamic Currents Download

To keep down fuel consumption rates, the fuel supply system must be regulated to match the fuel demand. Current flows at the electronic control unit (ECU) for the fuel pump are recorded over an extended period of time to find out whether its fuse is correctly rated or not.

Measurement Technology for the Analysis of Highly Dynamic Currents - Letter Download

Measuring Shield Current of High-Voltage Cables in Electric Vehicles Download

The development of high-performance electric passenger cars, commercial vehicles, buses or mobile machines poses extraordinary challenges due to a particularly large high-voltage vehicle electrical system. High shield currents can destroy the cables and must be measured.

Measuring Shield Current of High-Voltage Cables in Electric Vehicles - Letter Download

Powertrain Validation in Forklifts Download

Validation testing is often needed when extensive design updates are made to the vehicle system. In these cases, all important vehicle parameters are tested under a wide range of operating conditions. The following example shows how such tests are performed on forklifts that incorporated new engine options.

Powertrain Validation in Forklifts - Letter Download

Real-time Efficiency Measurement on Inverter and Electric Motor Download

The optimal design of inverters is necessary for increasing the range per charge and performance of electric vehicles. The inverter is the link between the battery and the electric motor and plays an important part in the electric powertrain. This application example shows how power and efficiency calculations are performed on the inverter and how the measurement setup can easily be expanded for further measurements.

Real-time Efficiency Measurement on Inverter and Electric Motor - Letter Download

Safe Drop Test Measurements for HV Electric Vehicle Batteries Download

This example shows how accelerations inside and outside a high-voltage battery pack are measured during a drop test to verify vehicle safety. CSM measurement technology offers a simple solution because a subsystem with both high- and low-voltage components can be measured synchronously with a single measurement system utilizing high sampling and data rates.

Safe Drop Test Measurements for HV Electric Vehicle Batteries - Letter Download

Safe Temperature Measurement in High-Voltage Batteries Download

High-voltage batteries play a central role in the development of electric vehicles. Temperature management is one of the key factors for their optimal function, which is why temperature measurements are carried out under different conditions during development and pre-series production. This example shows how such a temperature measurement can be realized in the high-voltage battery.

Safe Temperature Measurement in High-Voltage Batteries - Letter Download

Thermal Characterization of HV Batteries - Letter Download

Thermal Charakterisation of HV Batteries Download

The thermal characterization of high-voltage batteries requires precise temperature measurements down to cell level with a large number of sensors. Only with precise insights in the thermal behaviour of battery cells and the whole system further optimization can be performed. With the HV DTemp measurement system, temperatures on the cell level can be measured with up to 512 sensors on only one sensor cable.

Verification of High-Voltage Electrical Systems Download

The high-voltage electrical system in electric and hybrid vehicles is validated at all stages of development and extensively tested for series production release. CSM HV Breakout Modules are particularly suitable for these validation and acceptance measurements in accordance with the ISO 21498-1 and -2 standard because they can be used directly in the HV cables of the vehicle electrical system.

Verification of High-Voltage Electrical Systems - Letter Download

WLTP Power Measurement of Electric and Hybrid Vehicles Download

In the European Union, consumption values for new passenger cars and light commercial vehicles must be measured for type approval according to the WLTP (Worldwide Harmonized Light-Duty Vehicles Test Procedure). This also applies to electric vehicles (battery electric vehicles and hybrid electric vehicles), for which the electric range is also determined. This example shows how the electrical energy consumed and the range per charge can be determined according to the WLTP.

WLTP Power Measurement of Electric and Hybrid Vehicles - Letter Download