Patent ID: 11912253
Assignee: DEERE & COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 8:
9. An electrohydraulic valve system for controlling a braking system of a work machine, comprising:
a valve body forming a bore and a port, the port being fluidly coupled to the bore;
a valve spool disposed within the bore and in fluid communication with the port, the valve spool including at least a first land and a second land;
an armature positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position;
a spring disposed within the bore and biasing the valve spool to its first position;
a first electromagnetic coil and a second electromagnetic coil arranged relative to one another and the armature for forming a magnetic field when energized; and
a magnet positioned within the valve body, the magnet configured to exert an axial force to the valve spool or armature;
wherein the magnet is coupled to the second land in the first position and to the first land in the second position.