Active Kinematic Control (AKC) refers to a concept of actively controlling mechanical movements in systems such as machines, robots, or linear drives. The goal is to improve precision, dynamics, and stability by continuously monitoring and actively adjusting position, speed, or force along a movement axis.
This is achieved through an interplay of sensor technology, control algorithms, and actuators to ensure deviation-free, precisely controlled movements.
AKC enables:
- Compensation of mechanical compliances, play, and elasticities.
- Reduction of vibrations and oscillations.
- Precise positioning even with load changes or high dynamics.
- Optimization of efficiency through targeted control of forces and moments.
Technical Implementation
- Sensors record position, force, temperature, or speed in real time.
- Control algorithms calculate corrections based on deviations between target and actual values.
- Actuators (e.g., servo motors, linear motors, piezoelectric elements, or ball screws) perform the adjustments.
- In ball screws (KGT), AKC can, for example, actively vary the preload or optimize flank contact to increase accuracy, stiffness, and service life.
Practical relevance
- CNC machines: Compensation of thermal length changes, compliances, and play errors.
- Robotics: High positional accuracy with variable loads and complex dynamics.
- Precision measuring and optical systems: Jerk-free, precisely guided movements.
- Automation: Increase in dynamics, repeatability, and process stability.