Maximum Available Engine Power Management
AssigneeCaterpillar Inc.
InventorsSamuel Were, Tao Yu
Life of this patent
Estimating the term…
Abstract
A load management system for reducing engine lug during transient conditions is disclosed. The load management system may include a driven component, a power source configured to drive the driven component, and a controller in communication with the driven component and the power source. The controller may be configured to: monitor a current intake manifold pressure of the power source and a current load of the driven component, calculate a ratio based on the current intake manifold pressure and a steady state intake manifold pressure of the power source, and start a predetermined time period based on the ratio and the current load during which the power source builds up power to respond to the current load.
Claims20
A load management system for reducing engine lug during transient conditions, comprising:
- a driven component;
- a power source configured to drive the driven component;
- and
- a controller in communication with the driven component and the power source, the controller configured to:
- monitor a current intake manifold pressure of the power source and a current load of the driven component,
- calculate a ratio based on the current intake manifold pressure and a steady state intake manifold pressure of the power source, and
- start a predetermined time period based on the ratio and the current load during which the power source builds up power to respond to the current load.
A method to control a load of a driven component to reduce engine lug in a power source during transient conditions, the power source configured to drive the driven component, the method comprising:
- a controller monitoring a current intake manifold pressure of the power source;
- the controller monitoring a current load of the driven component;
- the controller retrieving a steady state intake manifold pressure of the power source from a memory associated with the controller;
- the controller calculating a ratio of the current intake manifold pressure to the steady state intake manifold pressure;
- the controller starting a predetermined time period based on the ratio and the current load;
- and
- the controller determining a transient power value during the predetermined time period based at least in part on the ratio.
A controller for a driven component operatively connected to a power source configured to drive the driven component, the controller comprising:
- a timer;
- a current load module configured to determine a current load of the driven component;
- a transient state module configured to:
- monitor a current intake manifold pressure of the power source and the current load of the driven component,
- calculate a ratio based on the current intake manifold pressure and a steady state intake manifold pressure of the power source,
- start the timer for a predetermined time period based on the ratio and the current load, and
- during the predetermined time period, determine a transient power value based at least in part on the ratio;
- and
- a load management module configured to manage the current load of the driven component in transient conditions using the transient power value during the predetermined time period.
Dependencies are inferred from the claim text.