
Control Concept for Implantable Blood Pump

Challenge
- Development of a control system for an implantable blood pump
- Position control of the levitated rotor in the magnetic bearing
- Speed control
- Flow estimation
- Highest reliability requirements
- High variability in operation (accelerations, cardiac activity)
- Minimize power consumption for long battery life

Approach
- Comparison of different combinations of sensor and control concepts
- Physical modeling
- Experiments for identification of model parameters
- Closed loop control with motor model and pump model
- Automated test environment

Technologies & Methods
- Identification methods
- Model-based control
- Observer (e.g. Kalman filter)
- Matlab
- Python
- C