The 2-pole brushless motor designed for a pump with eccentric connection to shaft in Anti-lock brake system (ABS)

摘要

The paper deals with a brushless type permanent magnet motor especially suitable for a pump in anti-lock braking system (ABS). The pump due to eccentric connection on the shaft is characterized by a change of load torque over one turn of the shaft. The aim of the design is to match torque changes of the motor to load torque of the pump. Due to such matching the torque ripples of the motor increase but an instantaneous torque is always sufficient to drive the pump. Such changes in motor design lead to reduction of its cost and weight.