Test bed for hydraulic brake actuating mechanism

Abstract

The invention discloses a test bed for a hydraulic brake actuating mechanism, which comprises a real-time platform, an ICC (integrated circuit card) hydraulic brake system and a hydraulic test module. The hydraulic test module comprises a power source, a flow sensor, three pressure sensors with the same structures, five two-position and three-way valves with the same structures, a normally open two-position and two-way valve, two normally closed two-position and two-way valves with the same structures and a driving system. The driving system comprises eight relays with the same structures, wherein the relays include a power source relay, a first electromagnetic valve relay, a second electromagnetic valve relay, a third electromagnetic valve relay, a fourth electromagnetic valve relay, a fifth electromagnetic valve relay, a sixth electromagnetic valve relay, a seventh electromagnetic valve relay and an eighth electromagnetic valve relay. The real-time platform is connected with the ICC hydraulic brake system through an electric wire and connected with the hydraulic test module through a DS2211 type multi-way I / O (input / output) board and a driving system, and the ICC hydraulic brake system is connected with the hydraulic test module through a pipeline.

Description

technical field [0001] The invention relates to a test bench for an actuator, in particular to a test bench for a hydraulic brake actuator. Background technique [0002] Most of the current vehicle chassis integrated control (Integrated Chassis Control, ICC) studies only focus on the design of the integrated controller itself, while ignoring many control details, such as the response characteristics and adjustment methods of the actuator. As one of the main actuators of chassis integrated control, the fine adjustment of active hydraulic braking force is the basis for ensuring the quality of chassis integrated control. In the integrated control structure, the actions of each actuator are uniformly determined by the central controller, which puts forward higher requirements for the accuracy and response speed of hydraulic control. However, due to the obvious nonlinear characteristics of the hydraulic braking system, it is difficult to achieve precise control. Certainly, there...

AI Technical Summary

Problems solved by technology

In the integrated control structure, the actions of each actuator are uniformly determined by the central controller, which puts forward higher requirements for the accuracy and response speed of hydraulic control. However, due to the obvious nonlinear characteristics of the hydraulic braking system, it is difficult to achieve precise control. certain difficulties, there are few studies dealing with the response quality of specific actuators

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