Control device for operating brushless electric drive of motor car, has commutation device to perform commutation of drive according to commutation interruption based on synchronization valves before drive reaches non-operation state

摘要

The control device (1) has an evaluation device (20) to determine the state parameters regarding rotation speed and angular position of brushless electric drive (10). A synchronization device (30) is configured to compute the synchronization valves from determined state parameters of brushless electric drive. A commutation device (40) is arranged to perform commutation of drive according to commutation interruption based on computed synchronization valves before the drive reaches non-operation state. An independent claim is included for a method for operating brushless electric drive.