COBROS™ Motor Sensor Module

COBROS™ - A New Approach to Electric Motor Position Sensing

Accurate motor position sensing is paramount for any vector-controlled electric motor, as precise angular information will help the motor control unit synchronize the stator's magnetic field to the rotor for the best possible performances. Traditionally, the magnetic field states are inferred using indirect information from encoders or resolvers mounted on the rotor shaft. While effective, these approaches have their limitations and downsides whether that would be less-than-optimal accuracy, fragility, taking up valuable system space or simply being costly. 

COBROS™ takes a fundamentally different approach to electric motor position sensing by measuring the magnetic B-fields of the stator and rotor directly, rather than inferring them from indirect measurements. This method offers multiple distinct advantages:

Greater Accuracy and Efficiency

The field-based control of COBROS™ eliminates signal estimation errors, leading to greater control accuracy for a smoother torque response and better dynamic behaviour.

Weight, Space and Cost Reduction

COBROS™ removes the need a traditional position sensor and external current sensors, enabling lighter, more compact system designs with fewer constituent parts.

Improved Robustness

The reduced amount of connectors and external elements will lower the risk of operational failure, improving robustness and reliability. 

The COBROS™ PCB sensing module is easily integrable in existing electric vector-controlled motors and will enable new smaller and more effecient system architectures for applications such as electric vehicles and industrial drives. The technology has