Data Acquisition System Study Based On ABS Dynamic Simulation Test Stand

With the constantly boosting vehicle speed and the increasingly attention to road traffic condition, more and more vehicle have equipped anti-lock braking system, and now the question is how to test the large number of ABS, this is an exigent problem for domestic vehicle test calling.A kind of data acquisition system design based on ABS dynamic simulation test stand based on detailed market research and working principle of ABS controller refers to this dissertation. The dynamic simulation test stand can provide a more realistic working condition and do their job for dynamic experiments. This dissertation analyzes the ABS system, the existing test methods and their advantages and disadvantages. Power is from the three-phase asynchronous motor, we make the flywheel'moment of inertia equal to the motor vehicles'moment of inertia and exhibits the movement relationship between wheel and road surface during braking process by the active rotor and driven rotor of the magnetic particle clutch. A kind of excitation and demagnetization system for the linear relationship between transmission torque and excitation current of magnetic particle clutch was designed in this dissertation.The signal acquisition unit includes torque sensor, wheel speed sensor and liquid pressure transmitter make the test more convenient. We developed an ABS data acquisition system units by using the object-oriented development tools LabVIEW to make the experimenters learn more intuitive about the equipments status. We mastered a way for ABS controller to work out of the motor vehicle independently during the debugging process. We designed the ABS controller in order to verify the feasibility of the test stand. The brake wheel cylinder pressure detection showed that the signal can be received by the ABS controller. Thus completed a feasibility demonstration experiment on the dynamic simulation test stand.The development of data acquisition system design based on ABS dynamic simulation test can make the process of test more convenient and make the cycle of the test short.