Pressure Estimation and Pressure Control of Hydraulic Control Unit in Electric-Wheel Vehicle

Table 1

Parameters of the valve model.

Variable	Symbol	Value
Mass of the valve spool
Number of valve coil windings		300
The area of the magnetic pole
Preload force of spring
Stiffness coefficient of the return spring
Width of secondary air gap
Radius of the spool
Electric resistance of the solenoid coil
Mass density of brake fluid
Inlet section area of valve
Cone angle of valve seat