Automotive anti-lock braking and braking energy feedback integration control hardware-in-the-loop test bed

Abstract

The invention relates to an automotive anti-lock braking and braking energy feedback integration control hardware-in-the-loop test bed, which comprises a front braking gas path, a rear braking gas path, and a braking control unit, wherein the front braking gas path comprises a gas source, a gas storage cylinder and a front braking feedback regulation valve which are orderly and serially connected, and a gas outlet end of the front braking feedback regulation valve is connected with two gas paths which consist of a front ABS electromagnetic valve, a front braking gas chamber and a front brake respectively and are serially connected; the rear braking gas path comprises a gas source, a gas storage cylinder and a rear braking feedback regulation valve which are orderly and serially connected, and a gas outlet end of the rear braking feedback regulation valve is connected with two gas paths which consist of a rear ABS electromagnetic valve, a rear braking gas chamber and a rear brake respectively and are serially connected; and the braking control unit comprises pressure sensors, a wheel speed sensor, a host, an Autobox, a data acquisition and signal emission system connected with the Autobox, an electronic control unit and a bench. The test bed can simulate mixed-power commercial vehicles with air pressure braking systems, and perform braking control and research on the mixed-power commercial vehicles.

Description

technical field [0001] The invention relates to the test and research equipment of the safety running device of the automobile, in particular to a hardware-in-the-loop test bench for the integrated control of automobile brake anti-lock braking and braking energy feedback proposed for the air pressure brake system of the hybrid city bus. Background technique [0002] Generally, passenger cars use hydraulic braking systems. Before each hydraulic braking system is used, its stability must be tested on a test bench. There are already patents for related test benches: a utility model patent named "Automobile ABS Performance Test Bench" applied by Nanjing Forestry University (application number: 200420025738.5), and a joint application by Beijing Institute of Technology and Jilin University Non-mine Technology Equipment Research Institute is named "Automotive brake anti-lock brake device test bench based on brake inertia test" (application number: 200410046001.X), "automobile ABS / ...

AI Technical Summary

Problems solved by technology

However, for the pneumatic braking system of hybrid commercial vehicles, its working process is the cooperation of braking energy feedback and traditional pneumatic braking, and the corresponding test bench is still blank in China.

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