Hydro-Balance™ Technology is an all new, patent-pending software update that
delivers superior autopilot performance on boats with hydraulic steering, and
particularly on boats with rudder reference-less steering and outboard motors.
What does Hydro-Balance™ do?
Hydro-Balance’s powerful algorithms can automatically detect and
compensate for 3 common challenges
Challenge: Hydraulic System
Elasticity (or Flex)
is caused by the air bubbles trapped in the
boat’s steering system components creating variation in the movements of the
system. Elasticity changes the overall volume of the hydraulic system and
makes it difficult or impossible for conventional autopilots without a
rudder reference transducer to accurately measure the actual rudder (or
new Hydro-Balance algorithm can quickly and accurately gauge the amount of
elasticity when the system is engaged, and then compensate for it
automatically. This ensures that boats without a rudder-reference track
straight without any heading oscillation or drive hunting. It also improves
the accuracy of the virtual rudder angle display on the boats autopilot
controllers and rudder data displays.
Challenge: Steering System Asymmetry
caused by Unbalanced Hydraulic Cylinders cause the boat’s rudders or
outboards to turn faster in one direction than the other.
Solution: Evolution’s new
Hydro-Balance algorithm figures out the difference in fill-rate between a
port-turn and a starboard-turn, and compensates accordingly. This makes for
straight tracking without any over-correction or oscillation.
Challenge: Asymmetrical Torque Steer
(aka Propeller Walk)
causes the bow of the boat to veer to port or
starboard at trolling speeds and during rapid acceleration.
Hydro-Balance algorithm, in combination with its ultra-sensitive EV Sensor
Core can sense the side-force caused by propeller walk and factor it in to
the boat’s autopilot steering to ensure the heading is rock-solid during
trolling, acceleration, and on occasions where the boat’s engines are not
turning at the same speed (on twin or multi-engine vessels.)