LSPV (Load Sensing Proportioning Valve) Assembly Construction: Construction
The LSPV components are grouped into three sections ("A", "B", "C" as shown in the figure) as follows.
"A": Sensor section
The main parts in this section are a lever and a spring which senses variation in the vehicle height as affected by the loaded condition and converts it into the load.
"B": Hydraulic pressure control section
Included in this section are a stepped plunger and valve mechanism to execute proportional control.
"C": Fail-safe section
The main parts in this section are a chamber which draws in the hydraulic pressure from the front wheel brake system and a fail-safe piston which releases the valve mechanism in the control section connected to the rear wheel brake, should any failure occur in the front wheel brake system.