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05 / Motion control research

Bearingless Actuators

High-power rotary, linear and tubular machines integrated with sensing, control and redundant safety for fully autonomous motion.

10–500 kWdeveloped power range
Up to 900 Voperating voltage
>65 kW/Lor 20 kW/kg at high power
0.1–10 mmmagnetic air gap
Autonomous motion architecture

Control from sensing
to actuation.

AALT’s motion-control architecture combines actuators, power converters, a large sensory system and multiple motion controllers into one autonomous ride platform.

Wired and wireless communications coordinate object avoidance and tracking through RTMOD and RTMOT, backed by a redundant motion safety system.

Actuators and power converters
Large sensory system
Multiple motion controllers
Wired–wireless communication
RTMOD and RTMOT tracking
Redundant motion safety
Bearingless actuator family

High density. Precise motion.

Rotary, linear and tubular machines bring magnetic bearing, propulsion and control functions into compact actuator architectures.

Thrust density380 N/kgUp to 40 Nm/kg torque density.
Load capacity2 kN/kgHigh load-bearing-capacity density.
Magnetic stiffness100 kN/mmSmooth motion under road disturbance.
Research base80+Advanced electromagnetic circuits studied.

Bearingless magnetic support with no mechanical bearing contact

Slice-motor and selected out-runner configurations

Axial-flux, flux-modulation and flux-switching concepts

Reduced permanent-magnet use and power consumption

Generator operation tested across selected architectures

Double-mover, double-stator, Halbach and hybrid circuit studies

SMNC cores: 300 W/L core loss at 3 kHz

Integrated refrigeration for high-power operation

Electromagnetic research

Electromagnetic Circuit Progression

Actuator configurations

Rotary, Linear and Tubular Motors

AALT rotary traction motor
Rotary Traction Motor Multiple Configurations
AALT linear propulsion motor
Linear Propulsion Motors Multiple Configurations
AALT tubular linear motor
Tubular Motors Multiple Configurations
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