Synchronization module for motor speed control
AssigneeHamilton Sundstrand Space Systems International, Inc.
InventorsRobert P. Wichowski, Kevin G. Hawes, Patrick J. Sears, Sean K. Murray
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Abstract
A system includes a first control system configured to operate at a first clock speed, a second control system configured to provide an output to the first control system and configured to operate at a second clock speed different from the first clock speed, and a synchronization module operatively connecting the first control module to the second control module and configured to synchronize the first control system and the second control system such that the output of the second control system is timed to synchronize with the first clock speed.
Claims11
A system, comprising:
- a first control system configured to operate at a first clock speed;
- a second control system configured to provide an output to the first control system and configured to operate at a second clock speed different from the first clock speed;
- and
- a synchronization module operatively connecting the first control module to the second control module and configured to synchronize the first control system and the second control system such that the output of the second control system is timed to synchronize with the first clock speed.
A method for synchronizing asynchronous control systems, comprising:
- initializing an electric motor compensation to control speed of an electric motor;
- starting a loop sample timer to sample the clock speed of a motor control system or to track the clock speed of the motor control system;
- receiving speed data regarding the speed of the electric motor;
- calculating error of the speed of the motor as compared to a speed command;
- generating a new duty cycle command for input;
- and
- inputting the new duty cycle command upon completion of the loop sample timer.
Dependencies are inferred from the claim text.