Control method of automotive integrated air-handling system

Abstract

The invention relates to the field of automobile braking and discloses a control method of an automotive integrated air-handling system. The control method comprises the steps that a pressure sensor detects air pressures of magnetic valves in a first loop, a second loop, a third loop and a fourth loop respectively and generates respective pressure signals; the control unit receives the respectivepressure signals and compares the respective pressure signals with first preset values; the control unit opens the magnetic valves in the first loop and / or the second loop when it is judged that the pressure signals corresponding to the air pressures in the first loop and / or the second loop reach first preset values; the control unit opens the magnetic valves in the third loop and / or the fourth loop when it is judged that the pressure signals corresponding to the air pressures in the third loop and / or the fourth loop reach second preset values, wherein air pressure values corresponding to thesecond preset values are greater than air pressure values corresponding to the first preset values.

Description

technical field [0001] The invention relates to the field of automobile braking, in particular to a control method for an automobile integrated air treatment system. Background technique [0002] The air handling unit is a combination of an air dryer and a multi-circuit protection valve. The air dryer cleans, dries and controls the compressed air from the air compressor; the multi-circuit protection valve is used to protect the system pressure, so the air handling unit is a car The braking system provides a complete, simple, dry, clean, safe and effective air handling system. The existing air handling unit usually adopts a four-circuit protection valve. The air outlets of two circuits in the four-circuit protection valve lead to the service brake system of the car, and the air outlet of one circuit leads to the parking brake system of the car. The air outlet of one circuit leads to the auxiliary braking system of the car (such as door locks, window locks, etc.). The four c...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the four-circuit protection valve in the prior art cannot ensure that the two circuits leading to the service braking system can be opened preferentially, and to provide a control method for an integrated air handling system of an automobile. The control method detects the air pressure in each circuit of the four-circuit protection valve, and sets the two circuits leading to the service brake system to a smaller opening air pressure preset value, which can ensure that the two circuits leading to the service brake system have priority Open

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