Abstract: Measurement of the pressure response property of the ABS system is required for building control model and designing control logics of ABS. A test bench for measuring pressure regulating property is designed and manufactured, and corresponding test program is written. Furthermore, measured and analyzed are the model MK20 hydraulic module, which is widely used in domestic-made cars, and its ABS hydraulic brake lines. Test results show the measurement system built is valid. Based on analysis of hydraulic pressure response property, realization of fine regulation of the pressure is raised.

Key words: ABS, Fine regulating of pressure, Hydraulic module, Pressure response property