Pulse synchronized load stabilization for fastening torque recovery

A method of pulse synchronous load stabilization method for adjusting a fastener to a desired torque level with a tool operatively connected to the fastener comprising:

• (a) setting up high and low current thresholds;
• (b) applying current to the tool at the low thresholds for a predetermined length of time;
• (c) determining whether all fasteners are synchronized;
• (d) if the fasteners are synchronized then skipping to step (g), if the fasteners are not synchronized, then executing steps (e)-(f);
• (e) applying current to the tool at the high threshold;
• (f) measuring a level torque associated with fasteners, if the torque level exceeds a desired level, return to step (b), if the torque level does not exceed a desired level, go to step (d);
• (g) pulsing current to tool while the tool is in a velocity control mode and measure dynamic torque associated with fasteners;
• and
• (h) repeating steps (b)-(g) at least one of a predetermined number of times or until a desired torque level is achieved.

A method for adjusting a fastener with a tool operatively connected to the fastener comprising:

• running the tool in a first velocity speed control mode;
• determining if a torque load is at a predetermined level;
• and
• if the torque load is at the predetermined level, then:
• applying a pulse synchronous load stabilization sequence.

A method for adjusting a fastener with a tool operatively connected to the fastener comprising:

• running the tool in a high velocity speed control mode;
• determining if the torque level is at a synchronization level;
• and
• if the torque level is at a synchronization level, then:
• applying a pulse synchronous load stabilization sequence;
• running the tool in a low velocity speed control mode;
• determining if the torque level is at a predetermined level;
• if the torque level is at a predetermined level, then:
• applying a pulse synchronous load stabilization sequence a second time.

A computer readable medium containing executable code for adjusting a fastener with a tool operatively connected to the fastener comprising:

• running the tool in a first velocity speed control mode;
• determining if a torque load is at a predetermined level;
• and
• if the torque load is at the predetermined level, then:
• applying a pulse synchronous load stabilization sequence.

A computer readable medium containing executable code for using pulse synchronous load stabilization for adjusting a fastener to a desired torque level with a tool operatively connected to the fastener comprising:

• applying a first level of current to the tool;
• pulsing the tool to cause the fastener to rotate;
• and
• measuring a dynamic torque load associated with the fastener while it is rotating.

A computer readable medium containing executable code using pulse synchronous load stabilization for adjusting a fastener with a tool operatively connected to the fastener comprising:

• running the tool in a high velocity speed control mode;
• determining if the torque level is at a synchronization level;
• and
• if the torque level is at a synchronization level, then:
• applying a pulse synchronous load stabilization sequence;
• running the tool in a low velocity speed control mode;
• determining if the torque level is at a predetermined level;
• and
• if the torque level is at a predetermined level, then:
• applying a pulse synchronous load stabilization sequence a second time.

A computer readable medium containing executable code using pulse synchronous load stabilization for adjusting a fastener with a tool operatively connected to the fastener comprising:

• (a) setting up high and low current thresholds;
• (b) applying current to the tool at the low thresholds for a predetermined length of time;
• (c) determining whether all fasteners are synchronized;
• (d) if the fasteners are synchronized then skip to step (g), if the fasteners are not synchronized, then execute steps (e)-(f);
• (e) applying current to the tool at the high threshold;
• (f) measuring level torque associated with fasteners, if the torque level exceeds a desired level, return to step (b), if the torque level does not exceed a desired level, go to step (d);
• (g) pulsing current to tool while the tool is in a velocity control mode and measure dynamic torque associated with fasteners;
• and
• (h) repeating steps (b)-(g) at least one of a predetermined number of times or until a desired torque level is achieved.