Dynamic service interval scheduling for machine
AssigneeCaterpillar Inc.
InventorsKarl P. Schneider, Andrew Olson
Life of this patent
Estimating the term…
Abstract
Dynamic service interval scheduling in a machine includes receiving monitoring signals for a plurality of components in the machine each indicative of an operating characteristic upon which a state-of-health (SOH) of one of the plurality of components is dependent. An SOH term is calculated for each one of the components based on the monitoring signals and a stored SOH degradation progression profile. SOH reporting signals are outputted based on a respective one of the SOH terms. The reporting signals may indicate a plurality of different continued service capacities among the components at least some of which are runtime-independent of one or more components in a drive system in the machine. Related apparatus and control logic is also disclosed.
Claims20
A method for dynamic service interval scheduling in an electric-drive machine comprising:
- receiving a plurality of monitoring signals, for a plurality of components in an electric-drive machine, and each being indicative of an operating characteristic upon which a state-of-health (SOH) of a respective one of the plurality of components is dependent;
- calculating an SOH term for each one of the plurality of components based on the plurality of monitoring signals and a plurality of stored SOH degradation progression profiles for each respective one of the plurality of components;
- and
- outputting a plurality of SOH reporting signals each based on a respective one of the SOH terms and being indicative of a plurality of different continued service capacities among the plurality of components.
An electric-drive machine comprising:
- a frame;
- ground-engaging elements coupled to the frame;
- a plurality of components including an electric traction motor coupled to at least one of the ground-engaging elements, and an electric power device;
- a service interval scheduling system including a plurality of sensors, and a system controller structured to:
- receive, at least in part from one or more of the plurality of sensors, a plurality of monitoring signals each being indicative of an operating characteristic upon which a state of health (SOH) of a respective one of the plurality of components is dependent;
- calculate an SOH term for each one of the plurality of components based on the plurality of monitoring signals and a plurality of stored SOH degradation progression profiles for each respective one of the plurality of components;
- and
- output a plurality of SOH reporting signals each based on a respective one of the SOH terms and being indicative of a plurality of different continued service capacities among the plurality of components.
A system for service interval scheduling in an electric-drive machine comprising:
- a system controller structured to:
- receive via a state-of-health (SOH) monitoring module a plurality of monitoring signals each being indicative of an operating characteristic upon which an SOH of a respective one of a plurality of components in an electric-drive machine is dependent;
- calculate an SOH term for each one of the plurality of components based on the plurality of monitoring signals and a plurality of stored SOH degradation progression profiles for each respective one of the plurality of components;
- and
- output to a service interval scheduling module a plurality of SOH reporting signals each based on a respective one of the SOH terms and being indicative of a plurality of different continued service capacities among the plurality of components.
Dependencies are inferred from the claim text.