Electrically controlled fluid system with ability to operate at low energy conditions

An electrically controlled fluid system, comprising:

• a fluid passage including a first portion and a second portion separated by a valve, and the first portion being fluidly connected to a source of pressurized fluid;
• the valve being coupled to an electrical actuator;
• a pressure controlling device operably coupled to the source of pressurized fluid;
• an electronic control module including a low electrical energy-pressure limiting algorithm and being in control communication with the electrical actuator and the pressure controlling device.

The system of claim 17 wherein the fluid system is a hydraulic system;

• moveable piston of at least one of a fuel injector and an engine brake is expose to pressure within a second portion of the fluid passageway;
• the source of pressurized fluid is a common rail containing actuation fluid different than fuel;
• and
• the pressure controlling device is included as a portion of a variable delivery pump.

An article comprising:

• a computer readable data storage medium;
• an electrical energy availability monitoring algorithm recorded on the medium;
• a low energy determining algorithm recorded on the medium;
• and
• a pressure limiting algorithm recorded on the medium and operable when the low energy determining algorithm determines available electrical energy is less than a predetermined electrical energy.