- driving comfort
To test the requirements of actuators used in modern cooling systems, EVOMOTIV is developing a test bench including automated data analysis.
Project Details
Initial situation:
Modern cooling systems use actuators to regulate the flow. These actuators must meet certain requirements in order to function safely even in special load situations, such as icing. The specifications must therefore be met. The parameters to be tested are primarily torque, speed and positioning accuracy.
Project assignment:
Conceptual design and construction of a test bench for recording torque and speed as well as setting a counter torque. Software must be developed to control the test bench and evaluate the resulting measurement data.
Implementation:
The mechanical structure was made using aluminum profiles. A synchronous servo motor with a drive controller for torque control was used to set the load torque. A torque sensor, which was installed between the load machine and the test object, is used to precisely determine the torque and record the actual value for torque control. A data acquisition system from National Instruments (NI cDAQ) records the sensor signals using appropriate measurement cards and transfers the values to the PC via USB. It is also used to specify the setpoint for torque control from the PC to the drive controller. The software for storing the sensor data and specifying the torque to the drive controller was created in LabVIEW. Several test cases were implemented automatically and a user-friendly interface was generated.
Solution:
A compact, fully automated test bench was set up, including automated data evaluation, which meets the customer's requirements in all respects and even exceeds them in many respects. After the successful customer acceptance, there was already talk of ordering additional test benches and expanding them to include climate tests.
Modern cooling systems use actuators to regulate the flow. These actuators must meet certain requirements in order to function safely even in special load situations, such as icing. The specifications must therefore be met. The parameters to be tested are primarily torque, speed and positioning accuracy.
Project assignment:
Conceptual design and construction of a test bench for recording torque and speed as well as setting a counter torque. Software must be developed to control the test bench and evaluate the resulting measurement data.
Implementation:
The mechanical structure was made using aluminum profiles. A synchronous servo motor with a drive controller for torque control was used to set the load torque. A torque sensor, which was installed between the load machine and the test object, is used to precisely determine the torque and record the actual value for torque control. A data acquisition system from National Instruments (NI cDAQ) records the sensor signals using appropriate measurement cards and transfers the values to the PC via USB. It is also used to specify the setpoint for torque control from the PC to the drive controller. The software for storing the sensor data and specifying the torque to the drive controller was created in LabVIEW. Several test cases were implemented automatically and a user-friendly interface was generated.
Solution:
A compact, fully automated test bench was set up, including automated data evaluation, which meets the customer's requirements in all respects and even exceeds them in many respects. After the successful customer acceptance, there was already talk of ordering additional test benches and expanding them to include climate tests.
ProjectTools
PAK
Artemis
SQuadriga II
