LIFT CONTROL SYSTEMS FOR LIFTING DEVICES AND LIFTING DEVICES COMPRISING THE SAME
First Claim
1. A lift control system for operating a lifting device comprising a lift actuator coupled to a lift arm, the lift control system comprising:
- a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions;
a battery electrically coupled to the control unit;
at least one indicator electrically coupled to the control unit, wherein the processor executes the computer readable and executable instructions to;
determine an accumulated number of initiated battery charging events;
determine an accumulated number of incomplete battery charging events;
determine an accumulated number of battery replacements;
determine at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated;
determine an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time;
store the accumulated load-time parameter in the memory of the lift control system;
compare the accumulated load-time parameter to a service constant; and
provide an indication with the at least one indicator that a lift structural component requires service based on the comparison of the accumulated load-time parameter to the service constant.
1 Assignment
0 Petitions
Accused Products
Abstract
A control system for a lifting device and a lifting device comprising the same are disclosed. The control system includes a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions. A battery is electrically coupled to the control unit in addition to at least one indicator. The processor executes the computer readable and executable instructions to: determine an operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determine an accumulated load-time parameter for the lifting device based on the operating characteristic and the operating time; store the accumulated load-time parameter in the memory of the lift control system; compare the accumulated load-time parameter to a service constant; and provide an indication the indicator that a lift structural component requires service based on the comparison.
111 Citations
20 Claims
-
1. A lift control system for operating a lifting device comprising a lift actuator coupled to a lift arm, the lift control system comprising:
-
a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions; a battery electrically coupled to the control unit; at least one indicator electrically coupled to the control unit, wherein the processor executes the computer readable and executable instructions to; determine an accumulated number of initiated battery charging events; determine an accumulated number of incomplete battery charging events; determine an accumulated number of battery replacements; determine at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determine an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time; store the accumulated load-time parameter in the memory of the lift control system; compare the accumulated load-time parameter to a service constant; and provide an indication with the at least one indicator that a lift structural component requires service based on the comparison of the accumulated load-time parameter to the service constant. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A lifting device for raising and lowering a payload coupled to the lifting device, the lifting device comprising:
-
a lift mast mechanically coupled to a base at a first end of the lift mast; a lift arm pivotally coupled to the lift mast at a second end of the lift mast; a lift actuator mechanically coupled to the lift mast and the lift arm, wherein actuation of the lift actuator raises or lowers the lift arm relative to the base; a lift control system communicatively coupled to the lift actuator, the lift control system comprising; a control unit comprising a processor and a memory having computer readable and executable instructions; and at least one indicator electrically coupled to the control unit, wherein the processor executes the computer readable and executable instructions to; determine at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determine an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time; store the accumulated load-time parameter in the memory of the lift control system; compare the accumulated load-time parameter to a service constant; and provide an indication with the at least one indicator that a lift structural component requires service based on the comparison of the accumulated load-time parameter to the service constant. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method for operating a lifting device comprising a lift actuator for raising and lowering a load coupled to the lifting device, the method comprising:
-
determining an operating characteristic of the lift actuator as the lift actuator is actuated; determining an operating time of the lift actuator as the lift actuator is actuated; determining an accumulated load-time parameter for the lift actuator based on the operating characteristic and the operating time; comparing the accumulated load-time parameter to a service constant indicative of a structural component requiring service; activating an indicator when the accumulated load-time parameter is greater than the service constant; and servicing a structural component of the lifting device when the indicator is activated.
-
Specification