Testing Capacities and Equipment

The test stand is designed for electric storage modules and systems in the voltage range of 50 V to 800 V. Due to the modular concept and the individual configuration options of both testing environment and testing process, customized measuring campaigns can be developed and executed.

A special feature of the institute's facilities is that the battery simulators, battery test stand and engine test stand can be networked. This way, a serial powertrain and engine test field is created that is very well suited for the development of large hybrid and electric vehicles such as the AutoTram^® Extra Grand and the EDDA-Bus.

• Networking of up to two electrical loads is possible. As a result, the following maximum currents, continuous performances and maximum performances can be realized:
  • Load 1: 250 A/ 150 kW/ 175 kW for 30 s
  • Load 2: 400 A/ 250 kW/ 275 kW for 30 s
  • Parallel operation: 650 A / 400 kW
  • Voltage of intermediate circuit and batteries: 50 V to 800 V
• Determination and validation of system characteristics, functional testing
• Integration of messages received from the battery management system (BMS) and simulation of vehicle responses
• Static investigations (continuous operation) as well as dynamic loads (load variations)

• Temperature of testing environment adjustable between 10° C and 30° C (25 kW cooling performance, pre-setting of specific temperature profile is impossible)
• Test bench: surface area 2500 x 1000 mm; maximum load capacity 1000 kg

• Individually configurable measuring data recording system by National Instruments
• 70 analog measuring channels (e. g., for U, I, T, …) with a sum sampling rate of 250 kHz
• 32 digital output channels
• CAN (control and/or logging)
• Voltage range of measuring cards: +/- 10 V
• Current measurement: +/- 300 A or +/- 3000 A
• Temperature sensors (type M-OK)
• Voltage measurement: 10 – 1000 V
• Testing process implemented in Matlab/Simulink for maximum freedom of test plan design, control via DSpace Autobox