Investigating the Effect of Valve Shape on Anti-Lock Braking System Plunger Pump Performance Using Fluid-Structure Interaction Simulation

• Published in: International journal of automotive technology Vol. 22; no. 2; pp. 429 - 439
• Main Authors: Mo, Jang-oh, Choi, Jae-Hyuk
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Society of Automotive Engineers 01.04.2021; Springer Nature B.V; 한국자동차공학회
• Subjects: Antilock braking systems; Automotive Engineering; Braking systems; Engineering; Fluid-structure interaction; Hydraulic control; Inlet valves; Laminar flow; Pumps; Shape effects; Simulation; Suction; 자동차공학; Anti-lock braking system (ABS); User-defined function (UDF); Valve shape; Plunger pump; Fluid-structure interaction (FSI) Simulation
• ISSN: 1229-9138; 1976-3832
• DOI: 10.1007/s12239-021-0040-4

An anti-lock braking system (ABS) is an anti-skid braking system commonly used as a safety feature in vehicles. The hydraulic control unit for the ABS of a vehicle includes a plunger pump between the wheel and master cylinder. This paper presents numerical investigations of the effect of valve shapes on the performance improvement provided by a plunger pump, focusing on two different valve shapes, ball-type and hat-type. Transient laminar flow analyses of plunger pumps with ball and hat-type inlet valves are performed under motor speeds from 1000 to 5000 rpm using the fluid-structure interaction (FSI) and user-defined function (UDF) techniques. An experimental verification of the simulation results for the plunger pump with a ball-type valve was conducted using the standard pump test of the Mando Corporation, South Korea. A comparison of the simulation and experimental results suggests that these are in good agreement. The simulation results indicate that the hat-type valve outperforms the ball-type valve due to a shorter delay in the closing time at the end of the suction cycle. These findings suggest that valve shape has a considerable impact on the performance improvement provided by a plunger pump, providing crucial insights into the future design of high-efficiency pumps.