Parallel electrohydraulic servo valve controlled actuator with failure accommodation

A system comprising:

• a first electrohydraulic servo valve (EHSV) configured to be in fluid communication with a pressure supply and with a pressure return, the first EHSV including a first actuator extend line and a first actuator retract line and being operatively connected to pressurize one of the first actuator extend line or the first actuator retract line;
• a second EHSV configured to be in fluid communication with the pressure supply and with the pressure return, the second EHSV including a second actuator extend line and a second actuator retract line and being operatively connected to pressurize one of the second actuator extend line or the second actuator retract line;
• and
• an actuator with an extend chamber in fluid communication with both of the first and second extend actuator lines, and a retract chamber in fluid communication with both of the first and second retract actuator lines for extending an end effector when the first and second EHSVs pressurize the extend chamber, and for retracting the end effector when the first and second EHSVs pressurize the retract chamber;
• wherein the first EHSV and the second EHSV have a maximum combined capacity configured to operate the actuator at a first slew flow during a normal operation mode of each of the first EHSV and the second EHSV;
• and
• wherein the first EHSV or the second EHSV has maximum single capacity configured to operate the actuator at a second slew rate flow than the first slew flow when one of the first EHSV and the second EHSV is in a non-operational mode.