Method for reducing quiescent power draw and machine using same
First Claim
1. A method of operating a machine having a master electronic control module and at least one secondary electronic control module, comprising:
- determining whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state;
determining whether preconditions are satisfied for changing the secondary electronic control module from an operating state to a power off state;
changing the secondary electronic control module from the operating state to the power off state by the master electronic control module disconnecting the secondary electronic control module from its power source by opening a power circuit that supplies power to the secondary electronic control module;
changing the master electronic control module from the operating state to the low power state;
wherein the step of determining whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state includes checking a status of at least one operating condition of the master electronic control module; and
wherein the step of disconnecting the secondary electronic control module includes changing a condition of a switch of the master electronic control module that is operably coupled to the power circuit for the secondary electronic control module.
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Accused Products
Abstract
A machine includes a master electronic control module and at least one secondary electronic control module. A method of operating the machine includes steps of determining whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state, and determining whether preconditions are satisfied for changing the secondary electronic control module from an operating state to a power off state by opening a power supply circuit. The method also includes steps of changing the secondary electronic control module from the operating state to the power off state, and changing the master electronic control module from the operating state to the low power state.
22 Citations
19 Claims
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1. A method of operating a machine having a master electronic control module and at least one secondary electronic control module, comprising:
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determining whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state; determining whether preconditions are satisfied for changing the secondary electronic control module from an operating state to a power off state; changing the secondary electronic control module from the operating state to the power off state by the master electronic control module disconnecting the secondary electronic control module from its power source by opening a power circuit that supplies power to the secondary electronic control module; changing the master electronic control module from the operating state to the low power state; wherein the step of determining whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state includes checking a status of at least one operating condition of the master electronic control module; and wherein the step of disconnecting the secondary electronic control module includes changing a condition of a switch of the master electronic control module that is operably coupled to the power circuit for the secondary electronic control module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A machine having a ground-engaging element, comprising:
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a drive train system and at least one work implement; a master electronic control module and a secondary electronic control module, wherein the master electronic control module is configured to determine whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state, configured to determine whether preconditions are satisfied for changing a secondary electronic control module from an operating state to a power off state by the master electronic control module disconnecting the secondary electronic control module from a power source by opening a power supply circuit, configured to change the secondary electronic control module from the operating state to the power off state by changing a switch condition of a switch of the master electronic control module that is operably coupled to the power supply circuit for the secondary electronic control module, and configured to change the master electronic control module from the operating state to the low power state; and the power supply circuit electrically connecting a power source to the secondary electronic control module being either an open circuit or a closed circuit responsive to the switch condition of the master electronic control module. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A machine, comprising:
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an electronically controlled engine, an electronically controlled transmission, an electronically controlled implement and an operator control station all mounted to a machine body supported by ground engaging elements; a master electronic control module in communication with a plurality of secondary electronic control modules; the plurality of secondary electronic control modules includes an engine electronic control module, a transmission electronic control module and an implement electronic control module; the master electronic control module includes a first switch, a second switch and a third switch operably coupled to respective power supply circuits for the engine electronic control module, the transmission electronic control module and the implement electronic control module; wherein the master electronic control module is configured to determine whether preconditions are satisfied for changing the master electronic control module from an operating state to a low power state, configured to determine whether preconditions are satisfied for changing one of the plurality of secondary electronic control modules from an operating state to a power off state, configured to change the one of the plurality of secondary electronic control modules from the operating state to the power off state by the master electronic control module opening the respective power supply circuit of the one of the plurality of secondary electronic control modules by changing a condition of the respective first switch, second switch and third switch of the master electronic control module that is operably coupled to the power supply for the secondary control module, and configured to change the master electronic control module from the operating state to the low power state.
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Specification