Methods and systems for detecting an oscillation error

摘要

Methods and systems for detecting an oscillation error are provided. According to one embodiment, a system may include a controller, and a processor communicatively coupled to the controller. The processor may be configured to detect an oscillatory event and increment a delay timer based on a duration of the oscillatory event. The delay timer may be set to a predetermined delay value. Additionally, the processor may be configured to determine that the delay timer exceeds the predetermined delay value and, based on the determination, declare the oscillation error.

主权项

1. A method for detecting an oscillation error, the method comprising:
providing a command signal to a positioning device; monitoring a feedback signal responsive to the command signal, the feedback signal including an actual position of the positioning device; determining that the actual position is above a predetermined upper threshold and below a predetermined lower threshold; wherein when the actual position exceeds the predetermined upper threshold and the predetermined lower threshold, a delay timer starts incrementing and increments until a predetermined delay value; incrementing the delay timer based on a duration of an oscillatory event to obtain a delay timer incremented value; determining that the delay timer exceeds the predetermined delay value and that both the predetermined upper threshold and the predetermined lower threshold are exceeded; based at least in part on the determination, declaring the oscillation error; detecting an end of the oscillatory event; and based on the detecting, decrementing the delay timer starting from the delay timer incremented value; wherein when only one of the predetermined upper threshold and the predetermined lower threshold is exceeded and the oscillatory event is lasting for a predetermined amount of time, the oscillatory event is not declared.