Skip to main content
Use Cases
Use Cases

Would you like to switch to the US version of our website?

 

Temperature Measurement in High-Voltage Batteries

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. The following example shows how such a temperature measurement can be realized in the high-voltage battery.

Icon Background

Background

High-voltage battery cells require a certain temperature range to function optimally. Temperatures that are too low or too high can result in lower performance and faster aging. In order to keep the battery cells in the optimum temperature range, the overall battery system consists next to the battery cells, out of a cooling and heating system and the battery management system (BMS) with fault management.

Measurement task

Temperature measurements within the HV battery for optimum design of the cooling and heating system.

Icon Challenge

Challenge

The design of the BMS must be verified under changing conditions. This requires temperature measurements in the battery during various operating conditions, both on the test bench and in driving operation. The measurement technology must therefore be high-voltage safe and usable in the test bench and road test.

Icon CSM-solution

The CSM-solution

  • By using highly accurate and very thin HV PT sensors it can be measured at almost any point within the battery.
  • Alternatively, thermocouple temperature sensors can be used on a HV TH4 evo.
  • Safety is ensured by special high-voltage sensor cables, which are fed into the battery system through screw connections, and the CSM high-voltage temperature measurement module HV PTMM 2.
  • A HV Breakout Module (BM) 1.2 simultaneously measures the battery current and the output power as a reference for the battery load level.
  • A XCP Gateway pro combines the data transmitted by CAN and EtherCAT and converts them to XCP-on-Ethernet. This enables the use of common measurement data acquisition software.
Icon benefits

Benefits

In addition to the ensured high-voltage safety, the CSM measurement technology used can be installed in such a space-saving manner that it can be used both on the test bench and in road tests. This saves time for any necessary conversions. In addition, this solution can be easily extended by additional CAN or EtherCAT-based measurement modules (e.g. parallel moisture measurement in the high-voltage battery) by using an XCP Gateway pro.

  • High-voltage safe
  • Use in test bench and road test - without modification
  • Extendable with other CSM measurement technology

Download

Here you find the complete application example for download as PDF.

Featured Products

Related Hardware

Hochvolt Breakout-Module zu Leistungsmessung

HV Breakout Modules

Direct measurement of current, voltage and power

The HV Breakout Modules (BM) have been specifically designed for safe measurement applications on cables carrying high voltage. Current and voltage are evaluated and the power calculated online in the module.

Read more
Product HV TH

HV TH Measurement Modules

Safe temperature measurement with K-type thermocouples

Safe temperature measurements with thermocouples on high-voltage components: the high-voltage-safe temperature measurement modules are specifically designed for the reliable acquisition of temperatures in electric and hybrid vehicles.

Read more
HV PT Measurement Modules

HV PT Measurement Modules

Safe temperature measurement with PT100 and PT1000 sensors

CSM's measurement modules HV PT MiniModule (HV PTMM) and the HV PT test bench module (HV PT-TBM) allow precise temperature measurements with PT100 and PT1000 resistance sensors in a high-voltage environment.

Read more
XCP-Gateway

XCP-Gateway

The protocol converter for EtherCAT® and CAN to XCP-on-Ethernet

XCP-Gateway is the interface between the data acquisition software (e. g. vMeasure, CANape®, INCA®, Vision® ...) and the EtherCAT® measurement modules from CSM. It includes an EtherCAT® master and an XCP-on-Ethernet slave.

Read more

Related Software

Software CSMconfig

Logo CSMconfig

Swift configuration of measurement chains: CSMconfig is the reliable configuration software for all CAN and EtherCAT® based measurement modules from CSM. The clearly arranged and easy-to-use user interface allows an easy setting of all measurement parameters. This helps speeding up the measurement setup considerably.

Read more
vMeasure exp

vMeasure exp

vMeasure exp, developed by Vector Informatik, is an easy-to-use software tool for the acquisition and analysis of measurement data that can be used in combination with all CAN- and EtherCAT®-based CSM measurement modules. CSMconfig was integrated directly to ensure swift configuration.

Read more