Key Processes
1.Valve Body Precision Assembly
Complete steel ball press-fitting, master cylinder seal fitting, dual-chamber piston and firewall subassembly assembly. Servo force-displacement monitoring ensures zero internal leakage of the hydraulic base body.
2.Solenoid Valve & Sensor Press-Fitting
Automatic feeding, riveting and locking of SSV/PSV solenoid valves; micro press-fit of pressure sensors & PTS chips to guarantee stable pressure signal output.
3.Motor & PSU Subassembly Integration
Assemble power unit cylinder, anti-rotation structures and motor lead screw components, forming the core pressure adjustment power assembly.
4.Two-Tier Airtightness Inspection
Low-pressure tightness test after simulator assembly + high-pressure helium leak test post ECU mounting, detecting micro leakage at different hydraulic pressure levels.
5.Electrical Calibration & Functional Test
Complete PTS sensor and motor parameter calibration, followed by full-assembly comprehensive sealing test after oil pot installation.
6.ECU Programming & Finished Packaging
Flash customized customer brake control software, attach traceability labels and finish automatic packaging of qualified HCU units.
