Tire central inflation and deflation automatic control system and method

Abstract

The invention discloses a tire central inflation and deflation automatic control system and method, the system comprises a central control valve assembly (1), an air storage tank (2), an inflation control assembly and a deflation control assembly; the inflation control assembly comprises an air compressor (4) and a brushless motor (5), the brushless motor is connected with ECU (6) and is connectedwith the air storage tank through the air compressor, the air storage tank is connected with the central control valve assembly; the central control valve assembly is connected with the deflation control assembly, the deflation control assembly includes a wheel edge deflation valve assembly (8), a conductive slip ring (9), a rotating air chamber (10), an active tire pressure and temperature sensor (11), and a wheel edge electronic control unit (12) and a check valve (13), the conductive slip ring is used for providing power to the wheel edge deflation valve assembly and the ECU, the rotatingair chamber is connected to the tire through the check valve; the active tire pressure and temperature sensor (11) is connected with the wheel edge electronic control unit. The wheel edge electronic control unit is connected with the wheel edge deflation valve assembly and the ECU. The system can monitor the tire pressure in real time and automatically maintain and accurately adjust the tire pressure.

Description

technical field [0001] The invention relates to a device and method for inflation and deflation of automobile tires, in particular to an automatic control system and method for tire central inflation and deflation. Background technique [0002] At present, central tire inflation and deflation systems (CTIS) are widely used in military off-road vehicles, engineering machinery, agricultural machinery and other vehicles, such as figure 1 As shown, the system includes control panel KZJM, controller KZQ, control valve KZF, wiring harness XS, pressure maintaining valve KF, rotating air chamber QS, tire valve LT, lock valve BS, tire TAI, air storage tank ZQT and connecting components Composed of gas lines and wiring harnesses. The air reservoir ZQT provides air source for the control valve KZF. The control panel KZJM sends pressure measurement, inflation and deflation instructions to the controller KZQ, and the control valve KZF executes the controller instructions to realize the...

AI Technical Summary

Problems solved by technology

[0004] 1. The inflation speed of the CTIS system is slow, and the current fastest speed also takes 6 minutes to fill an axle

[0005] 2. The CTIS system adopts the wheel-side deflation technology, which requires two sets of pipelines and a rotating air chamber. It is difficult to arrange, has a low life, poor reliability, and large cost and size. In addition, the vent hole should be frozen in winter; the centralized deflation method is adopted , its speed is very slow and inefficient, which is not conducive to the survival of the battlefield

[0006] 3. The CTIS system cannot display the tire pressure in real time, and the pressure must be measured before each operation, and the pressure measurement takes a long time

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