Control system health test system and method
First Claim
1. A method for testing multiple elements of a work machine, including a control system, a component, a sub-component that is influenced by operations of the component, and a sensor that monitors a characteristic of the sub-component, the method performed by the control system comprising:
- sending a command to the component to adjust a first parameter associated with an operation of the component;
detecting a sensor signal from the sensor reflecting a second parameter associated with a characteristic of the sub-component;
determining whether the second parameter is acceptable based on the command; and
diagnosing at least one of the elements of the work machine when the second parameter of the sub-component is not acceptable.
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Accused Products
Abstract
A method is provided for testing multiple elements of a work machine, including a control system, a component, a sub-component that is influenced by operations of the component, and a sensor that monitors a characteristic of the sub-component. In one embodiment, the method is performed by the control system and includes sending a command to the component to adjust a first parameter associated with an operation of the component. Also, the method includes detecting a sensor signal from the sensor reflecting a second parameter associated with a characteristic of the sub-component and determining whether the second parameter is acceptable based on the command. The control system may diagnose at least one of the elements of the work machine when the second parameter of the sub-component is not acceptable.
41 Citations
29 Claims
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1. A method for testing multiple elements of a work machine, including a control system, a component, a sub-component that is influenced by operations of the component, and a sensor that monitors a characteristic of the sub-component, the method performed by the control system comprising:
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sending a command to the component to adjust a first parameter associated with an operation of the component; detecting a sensor signal from the sensor reflecting a second parameter associated with a characteristic of the sub-component; determining whether the second parameter is acceptable based on the command; and diagnosing at least one of the elements of the work machine when the second parameter of the sub-component is not acceptable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A computer-readable medium including instructions for performing a method, when executed by a processing unit, for diagnosing one or more elements of a work machine, the method comprising:
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sending a command to the component to adjust a first parameter associated with an operation of the component; detecting a sensor signal from the sensor reflecting a second parameter associated with a characteristic of the sub-component; determining whether the second parameter is acceptable based on the command; and diagnosing at least one of the elements of the work machine when the second parameter of the sub-component is not acceptable. - View Dependent Claims (27, 28)
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29. An apparatus for diagnosing one or more elements of a work machine, comprising:
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a processing unit; and a memory including; program code for performing a diagnosis process including the steps of; periodically sending commands to a component that adjusts the operation of the component, wherein at least one of the commands includes a first portion and a time-varying second portion superimposed on the first portion, receiving a sensor signal from a sensor monitoring a characteristic of a sub-component that operates in a manner based on the operation of the component, determining whether the characteristic of the sub-component is acceptable in relation to the operation of the component adjusted by the command, determining whether the characteristic is responsive to the time-varying second portion, diagnosing the one or more elements of the work machine when the characteristic of the sub-component is unacceptable, and determining whether any one of the one or more elements is a cause of the characteristic being unacceptable, wherein the one or more elements includes at least the component and sub-component.
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Specification