I. Overview: This test stand, mainly for the automobile vacuum booster, clutch booster brake system components and other performance tests, and related parameters were analyzed and calculated. Main features: 1, closed state (non-operating) tightness 2 full state (all working) sealing 3, the hydraulic seal two, to meet the standards: 1, QC / T 311-2008 "Automotive Hydraulic Brake The master cylinder technical conditions. " 2, QC / T 307-1999 "vacuum booster technical conditions." Third, the test parameters: 1, input voltage: AC220V ± 10%; 50Hz. 2, the maximum advancing stroke: 100mm (can be based on product specific) 3, the maximum input power: 3KN 4, servo propulsion systems, propulsion speed: 10m / min (according to product specifically) 5, vacuum adjustment range: -0.1 kPa ~ -95kPa 6, pressure measuring range: 0 ~ 1MPa four subjects: various models of the vacuum brake booster and five clutch booster, the system features that draw on past the inspection station in a starting point on the basis of mature experience, practical design principle, the use of industrial computer control and mechatronics technology, ensure the accuracy and reliability of the test.