Escrow clutch protection
Disclosed are systems and methods for protecting an escrow clutch of a self-service terminal. The systems and methods may include actuating a motor of the self-service terminal to cause an escrow clutch of the self-service terminal to spin at a rate. As the clutch spins, a determination as to when a clutch slippage exceeds a preset slippage rate may be made. When the clutch slippage exceeds the preset slippage rate, the motor may be actuated to cause the escrow clutch to spin at a second rate. The second rate may less than the first rate.
1. A method, comprising:
determining a slippage an escrow clutch of a terminal during a transaction at the terminal;
determining a current temperature of the escrow clutch exceeds a preset temperature based on a current torque calculated for the escrow clutch; and
actuating a motor causing the escrow clutch to spin at a lower rate from a current rate based on determining the slippage and determining the current temperature exceeds the present temperature.
2. The method of claim 1 , wherein determining the slippage further includes correlating a current draw of the motor to the current torque and identifying the slippage.
3. The method of claim 2 , wherein correlating further includes determining that the slippage exceeds a preset slippage rate for the escrow clutch.
4. The method of claim 1 , wherein determining the current temperature further includes determining the current temperature based on the current torque calculated without an independent clutch temperature sensor for the escrow clutch.
5. The method of claim 4 , wherein determining the current temperature further includes calculating the current torque based on a current draw of the motor compared to a range of draws mapped to a range of torques.
6. The method of claim 5 , wherein calculating the current torque further includes calculating the current draw based on amps being drawn by the motor.
7. The method of claim 1 , wherein determining the slippage further includes determining the current torque generated by the motor decreased by a preset torque change.
8. The method of claim 7 , wherein determining the current torque further includes determining the current torque generated by the motor decreased below a minimum torque.
9. The method of claim 1 , wherein actuating the motor further includes decreasing a current voltage applied to the motor.
10. The method of claim 9 , wherein decreasing the current voltage further includes causing the escrow clutch to spin at the lower rate from the current rate based on applying a lower voltage to the motor.
11. The method of claim 1 further comprising, executing the method by a processor of the terminal to control an escrow of the terminal when the transaction is associated with depositing notes via the escrow.
12. A method, comprising:
monitoring a current draw of an escrow clutch for an escrow of a terminal during a deposit of notes;
determining a current torque of the escrow clutch based on the current draw;
determining a current temperature of the escrow clutch based on the current torque;
determining a slippage of the escrow clutch based on the current draw, the current torque, and the current temperature; and
controlling a current voltage for a motor of the escrow clutch causing the escrow clutch to spin at a lower rate than a current rate based on the slippage.
13. The method of claim 12 , wherein monitoring further includes monitoring current being drawn by the motor for determining the current draw of the escrow clutch.
14. The method of claim 12 , wherein determining the current torque further includes identifying a reduction in the current torque from a previous torque based on the current draw.
15. The method of claim 14 , wherein determining the slippage further includes identifying a slippage rate for the slippage that exceeds a preset slippage rate based on the current temperature and the current torque.
16. The method of claim 12 , wherein determining the slippage further includes determining the current temperature without using an independent clutch temperature sensor.
17. The method of claim 12 , wherein monitoring the current draw further includes determining the current draw decreased below a minimum draw.
18. The method of claim 12 , wherein controlling further includes obtaining a preset clutch slippage rate for handling the notes by the escrow clutch based on the current voltage applied to the motor.
19. A clutch controller, comprising:
a processor of a terminal; and
a non-transitory computer-readable storage medium comprising executable instructions, that when executed by the processor cause the processor to perform operations, comprising:
determining a current draw by a motor of an escrow clutch for a note escrow of a terminal;
determining a current torque of the escrow clutch from the current draw;
determining a current temperature of the escrow clutch from the current torque;
determining a slippage of the escrow clutch based on the current draw, the current torque, and the current temperature; and
controlling a current voltage of the motor causing the escrow clutch to spin at a lower rate than a current rate when the slippage exceeds a preset clutch slippage.
20. The clutch controller of claim 19 , wherein the terminal is an automated teller machine that comprises the note escrow.