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US 7,030,580 B2Granted
Motor/generator transient response system
AssigneeCaterpillar Inc.
InventorBrian D. Hoff
Life of this patent
Estimating the term…
Abstract
A transient response system includes a power source operable to generate a power output and a transmission operatively coupled to the power source. The transient response system also includes a generator operatively coupled to the power source and a controller in communication with the generator and at least one of the power source and the transmission. The controller is operable to receive at least one input having a value indicative of a change in load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input.
Claims7
A transient response system, comprising:
- a power source operable to generate a power output;
- a transmission operatively coupled to the power source;
- a generator operatively coupled to the power source;
- and
- a controller in communication with the generator and at least one of the power source and the transmission, the controller operable to receive at least one input having a value indicative of a change in load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- wherein the at least one input includes a signal corresponding to a fluid pressure of the transmission.
3 more elements
A transient response system, comprising:
- a power source operable to generate a power output;
- a transmission operatively coupled to the power source;
- a generator operatively coupled to the power source;
- and
- a controller in communication with the generator and at least one of the power source and the transmission, the controller operable to receive at least one input having a value indicative of a change in load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- wherein the at least one input includes a motor command signal of the transmission.
3 more elements
A transient response system, comprising:
- a power source operable to generate a power output;
- a transmission operatively coupled to the power source;
- a generator operatively coupled to the power source;
- a controller in communication with the generator and at least one of the power source and the transmission, the controller operable to receive at least one input having a value indicative of a change in load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- a motor operatively coupled to the power source, wherein the controller is in communication with the motor and operable to cause the motor to add power to the power output at a rate corresponding to the value of the at least one input;
- and
- a second power source configured to power the motor when the motor drives the power source.
4 more elements
A method of operating a transient response system comprising:
- driving a transmission with a power source, the power source operable to produce a power output;
- sensing a load on the power source;
- identifying a change in the load on the power source;
- and
- controlling a generator to remove power from the power output at a rate corresponding to a value associated with the change in load on the power source and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- wherein the value associated with the change in load on the power source includes a value of a signal corresponding to a fluid pressure of the transmission.
3 more elements
A method of operating a transient response system comprising:
- driving a transmission with a power source, the power source operable to produce a power output;
- sensing a load on the power source;
- identifying a change in the load on the power source;
- and
- controlling a generator to remove power from the power output at a rate corresponding to a value associated with the change in load on the power source and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- wherein the value associated with the change in load on the power source includes a value of a motor command signal of the transmission.
3 more elements
A work machine comprising:
- a housing;
- a traction device supporting the housing;
- a power source operable to generate a power output;
- a transmission operatively coupled to the power source;
- a generator operatively coupled to the power source;
- a controller in communication with the generator and at least one of the power source and the transmission, the controller operable to receive at least one input having a value indicative of a load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- and
- wherein the at least one input includes a signal corresponding to a fluid pressure of the transmission.
5 more elements
A work machine comprising:
- a housing;
- a traction device supporting the housing;
- a power source operable to generate a power output;
- a transmission operatively coupled to the power source;
- a generator operatively coupled to the power source;
- a controller in communication with the generator and at least one of the power source and the transmission, the controller operable to receive at least one input having a value indicative of a load on the power source and operable to cause the generator to remove power from the power output at a rate corresponding to the value of the at least one input and in such a manner to dampen transient power loads applied to the power source by removing less power from the power output in response to an increase in load on the power source;
- and
- wherein the at least one input includes a motor command signal of the transmission.
5 more elements
Dependencies are inferred from the claim text.