Method and apparatus for controlling an electro-hydraulic fluid system

An apparatus adapted to control an electro-hydraulic system of an earthmoving machine, the electro-hydraulic system including a pump providing fluid to at least one fluid system, an engine connected to the pump, the engine providing power to the pump, and a controller for providing a command to the engine, comprising:

• a pump adapted to provide fluid to at least one of the fluid systems;
• an engine mechanically connected to said pump;
• a sensor adapted to sense a parameter indicative of desired characteristic of the electro-hydraulic system, and responsively generate a sensed signal;
• at least one parasitic load connected to said engine;
• and
• a controller adapted to receive said sensed signal, determine a desired characteristic of said electro-hydraulic system in response to said sensed signal, compare said desired characteristic with a deliverable characteristic of said electro-hydraulic system, and generate a power boost in response to said desired characteristic being greater than said deliverable characteristic by one of delivering a power boost command to said engine and disabling at least one of said at least one parasitic load from said engine;
• thereby controlling the electro-hydraulic system.

A method of controlling an electro-hydraulic system of an machine, the electro-hydraulic fluid system including a pump providing fluid to at least one fluid system, an engine connected to the pump, the engine providing power to the pump, at least one parasitic load connected to said engine, and a controller configured to provide a command to the engine, comprising the steps of:

• determining a desired characteristic of said fluid system;
• comparing said desired characteristic with a deliverable characteristic of said fluid system;
• and
• generating a power boost in response to said comparison, wherein said power boost is provided by disabling at least one of said at least one parasitic load from said engine;
• thereby controlling the fluid system.

An apparatus adapted to control an electro-hydraulic system of an earthmoving machine, the electro-hydraulic system including a pump providing fluid to at least one fluid system, an engine connected to the pump, the engine providing power to the pump, and a controller for providing a command to the engine, comprising:

• a pump adapted to provide fluid to at least one of the fluid systems;
• an engine mechanically connected to said pump;
• at least one of an input controller and a sensor adapted to sense a parameter indicative of desired characteristic of the electro-hydraulic system, and responsively generate a sensed signal;
• at least one parasitic load connected to said engine;
• and
• a controller adapted to receive said sensed signal, determine a desired characteristic of said electro-hydraulic system in response to said sensed signal, compare said desired characteristic with a deliverable characteristic of said electro-hydraulic system, and generate a power boost in response to said desired characteristic being greater than said deliverable characteristic by one of delivering a power boost command to said engine and disabling at least one of said at least one parasitic load from said engine.