Machine control system with directional shift management
AssigneeCaterpillar Inc.
InventorsRobert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
Life of this patent
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Abstract
A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes directing power into a power source and reducing a supply of fuel to the power source while directing power into the power source. The method further includes basing a first threshold speed on a speed of the power source produced by directing power into the power source and increasing the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
Claims20
A method for operating a power system, comprising:
- receiving an operator request for a propulsion direction change;
- directing power into a power source;
- reducing a supply of fuel to the power source while directing power into the power source;
- basing a first threshold speed on a speed of the power source produced by directing power into the power source;
- and
- increasing the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
A power system, comprising:
- a power source operably coupled to a transmission;
- at least one operator interface device, each operator interface device being configured to generate an operator request;
- and
- a controller configured to, in response to an operator request for a propulsion direction change:
- cause the transmission to direct power into the power source;
- reduce a supply of fuel to the power source while the transmission directs power into the power source;
- base a first threshold speed on a speed of the power source produced by power directed into the power source;
- and
- increase the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
A machine, comprising:
- at least one traction device;
- a power source operably coupled to a transmission to power the at least one traction device;
- at least one operator interface device, each operator interface device being configured to generate an operator request;
- and
- a controller configured to, in response to an operator request for a propulsion direction change:
- cause the transmission to direct power into the power source;
- reduce a supply of fuel to the power source while the transmission directs power into the power source;
- base a first threshold speed on a speed of the power source produced by power directed into the power source;
- and
- increase the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
Dependencies are inferred from the claim text.