Digital Electo-hydraulic Proportional Distributed System of Automotive Front-rear Shaft Brake Force
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In order to make the ratio of front and back brake force close to the ideal brake force balance ratio,in various driving situations,so as to improve safety,in this paper,a new electronic and hydraulic device which can control front and back brake-cylinder pressure according to load weight is introduced.It's composed of digital light-speed switch valves and a SCM.When a vehicle is braked,brake outlet port pressure is measured by a pressure censor and two high-speed valves controled by PWM signal,adjusting to brake balance,front-to-rear,to ideal in time.It's shown by theoretical analysis and experimental test that the method introduced in this paper is feasible,and accessible.It has a wide prospect in industrial application.