CN-122008741-A - Tire inflation and deflation system with redundancy function, control method thereof and vehicle

CN122008741ACN 122008741 ACN122008741 ACN 122008741ACN-122008741-A

Abstract

The invention discloses a tire inflation and deflation system with a redundancy function, a control method thereof and a vehicle. The control method comprises the steps of controlling a second tire pressure detection device to start detecting the pressure in the tire and generating a second tire pressure detection value when the first tire pressure detection value generated by any one of the first tire pressure detection devices fails to be obtained, and adjusting the working state of the air charging and discharging device according to the second tire pressure detection value and a preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value. The invention effectively makes up the defect of the single detection mode in the aspect of reliability, and realizes that the pressure in the tire can still be accurately regulated when the first tire pressure detection device or the first tire pressure detection device and the controller have faults.

Inventors

WANG LITAO
Zhou Erchao
CHEN YU
Pei Weichao
SONG KAI
JIA ZHIYUAN
LIU XUE

Assignees

一汽解放汽车有限公司

Dates

Publication Date: 20260512
Application Date: 20260319

Claims (10)

1. A control method of a tire inflation and deflation system with a redundancy function is characterized in that the tire inflation and deflation system comprises a plurality of first tire pressure detection devices, an inflation and deflation device and a controller; The first tire pressure detection devices are arranged in the tires in a one-to-one correspondence manner and are all in communication connection with the controller, the air charging and discharging device is connected with the air homogenizing channels of the tires and is electrically connected with the controller, the air charging and discharging device comprises an electromagnetic combination valve, and a second tire pressure detection device is arranged in the electromagnetic combination valve and is connected with the air homogenizing channels of the tires and is electrically connected with the controller; The control method comprises the following steps: When the first tire pressure detection value generated by any one of the first tire pressure detection devices fails to be obtained, controlling the second tire pressure detection device to start detecting the pressure in the tire, and generating a second tire pressure detection value; And adjusting the working state of the air charging and discharging device according to the second tire pressure detection value and a preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.
2. The control method according to claim 1, wherein the tire inflation and deflation system further comprises a touch panel, wherein the touch panel is electrically connected with the controller, and the inflation and deflation device further comprises a plurality of wheel side valves, wherein the wheel side valves are arranged on the wheel sides of the tires in a one-to-one correspondence manner, are all connected with the second tire pressure detection device in an air path, and are all electrically connected with the controller; when the first tire pressure detection value generated by any one of the first tire pressure detection devices fails to be acquired, controlling the second tire pressure detection device to start detecting the pressure in the tire and generating a second tire pressure detection value, including: When the first tire pressure detection value generated by any one of the first tire pressure detection devices fails to be obtained, obtaining a tire pressure detection instruction received by the touch panel, wherein the tire pressure detection instruction is used for designating a target tire to be detected, for which the first tire pressure detection value fails to be obtained; According to the tire pressure detection instruction, controlling the wheel edge valve corresponding to the target tire to be detected to be in an open state; Controlling the second tire pressure detection device to start detecting the pressure in the target tire to be detected, and generating a second tire pressure detection value; According to the second tire pressure detection value and a preset target tire pressure value, adjusting the working state of the inflation and deflation device until the second tire pressure detection value reaches the preset target tire pressure value, including: And adjusting the working state of the electromagnetic combination valve and the working state of the wheel edge valve corresponding to the target tire to be tested according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.
3. The control method according to claim 2, characterized by, before acquiring the tire pressure detection instruction received by the touch panel when the acquisition of the first tire pressure detection value generated by any one of the first tire pressure detection devices fails, further comprising: acquiring the first tire pressure detection value generated by the first tire pressure detection device; And controlling the touch panel to display the successfully acquired first tire pressure detection value and the tire corresponding to the successfully acquired first tire pressure detection value.
4. A control method according to claim 3, characterized by, after controlling the touch panel to display the first tire pressure detection value that is successful in acquisition and the tire corresponding to the first tire pressure detection value that is successful in acquisition, further comprising: And when the first tire pressure detection values generated by the first tire pressure detection device are obtained successfully, adjusting the working states of the electromagnetic combination valve and the working states of the plurality of tire edge valves according to the first tire pressure detection values and the preset target tire pressure values until the first tire pressure detection values reach the preset target tire pressure values.
5. The control method according to claim 4, characterized by further comprising, before acquiring the first tire pressure detection value generated by the first tire pressure detecting device: acquiring a mode control instruction received by the touch panel; and determining the preset target tire pressure value according to the mode control instruction.
6. A tire inflation and deflation system having a redundancy function, characterized by being configured to perform the control method of the tire inflation and deflation system having a redundancy function as recited in any one of claims 1 to 5, the tire inflation and deflation system comprising a plurality of first tire pressure detecting means, inflation and deflation means, and a controller; The first tire pressure detection devices are arranged in the tires in a one-to-one correspondence manner and are all in communication connection with the controller, the air charging and discharging device is connected with the air homogenizing channels of the tires and is electrically connected with the controller, the air charging and discharging device comprises an electromagnetic combination valve, and a second tire pressure detection device is arranged in the electromagnetic combination valve and is connected with the air homogenizing channels of the tires and is electrically connected with the controller; the first tire pressure detection devices are used for detecting the pressures of the tires and generating first tire pressure detection values; The second tire pressure detecting device is used for starting to detect the pressure in the tire and generating a second tire pressure detecting value when the controller fails to acquire any one of the first tire pressure detecting values generated by the first tire pressure detecting device; the controller is used for adjusting the working state of the inflation and deflation device according to the second tire pressure detection value and a preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.
7. The tire inflation and deflation system of claim 6, further comprising a touch panel electrically connected to the controller, wherein the inflation and deflation device further comprises a plurality of wheel side valves, wherein the plurality of wheel side valves are arranged on the wheel sides of the plurality of tires in a one-to-one correspondence, and wherein the plurality of wheel side valves are all in air connection with the second tire pressure detection device and are all in electrical connection with the controller; The touch panel is used for receiving a tire pressure detection instruction when the controller fails to acquire any one of the first tire pressure detection values generated by the first tire pressure detection device, wherein the tire pressure detection instruction is used for designating a target tire to be detected, for which the first tire pressure detection value fails to be acquired; the controller is used for controlling the wheel edge valve corresponding to the target tire to be detected to be in an open state according to the tire pressure detection instruction; the second tire pressure detecting device is used for starting to detect the pressure in the target tire to be detected when the wheel edge valve corresponding to the target tire to be detected is in an open state, and generating a second tire pressure detecting value; The controller is further configured to adjust, according to the second tire pressure detection value and a preset target tire pressure value, a working state of the electromagnetic combination valve and a working state of the rim valve corresponding to the target tire to be tested until the second tire pressure detection value reaches the preset target tire pressure value.
8. The tire inflation and deflation system of claim 7, wherein the inflation and deflation device further comprises a plurality of gas transfer channels and a gas source; The electromagnetic combination valve and the second tire pressure detection device are connected with the wheel side valve air paths through the plurality of air transmission channels; The air source is connected with the electromagnetic combination valve and is used for providing air for the tire.
9. The tire inflation and deflation system of claim 8, further comprising a wireless receiving device communicatively coupled to the plurality of first tire pressure detecting devices and further electrically coupled to the controller for inputting the first tire pressure detection values generated by the plurality of first tire pressure detecting devices into the controller.
10. A vehicle comprising a tire inflation and deflation system having a redundancy function as claimed in any one of claims 6 to 9.

Description

Tire inflation and deflation system with redundancy function, control method thereof and vehicle Technical Field The invention relates to the technical field of vehicles, in particular to a tire inflation and deflation system with a redundancy function, a control method thereof and a vehicle. Background The central tire inflation and deflation system is a control system for adjusting the tire pressure in real time, so that a driver can complete inflation, deflation and pressure detection of the tire in a cab through simple operation under the state that the vehicle is stationary or in a low-speed running state, and the passing capability and running safety of the vehicle on different roads are effectively improved. Along with the development of the automobile industry to the high security direction, put forward higher requirements to the accuracy and the reliability of tire pressure control system, traditional inflation and deflation system is difficult to realize accurate inflation and deflation control under the condition that the tire pressure can not be accurately detected, has certain potential safety hazard, has failed to satisfy the demand of modern vehicle to the security performance. At present, the control modes of the vehicle tyre inflation and deflation system are mainly divided into two technical routes. A passive detection control mode is that the system detects the tire pressure and performs the air charging and discharging actions according to the active operation instruction of the driver, the driver judges and executes the corresponding operation after obtaining the current tire pressure data, so that the tire pressure reaches the required value, and the mode depends on the subjective judgment and the active intervention of the driver, so that the real-time continuous monitoring of the tire pressure change can not be realized. The other mode is a real-time detection control mode, the system automatically collects tire pressure data in real time according to preset frequency, and automatically executes inflation and deflation operation according to a set target pressure value until reaching a target state, thereby realizing closed-loop automatic control of the tire pressure and remarkably improving the automation level of control. However, both of the above control modes have a common technical limitation, and the acquisition of the tire pressure data is highly dependent on the tire or wheel-side mounted air pressure sensor and its signal transmitting device. In practical applications, once a sensor fails, signal transmission is disturbed, or the transmitting device fails, the system will lose a critical tire pressure data source when the controller fails to receive a valid tire pressure signal. Under the condition, whether the system is a passive system which depends on the judgment of a driver or an automatic control real-time monitoring system, the tire state cannot be accurately mastered, the subsequent inflation and deflation operation cannot be executed, the system function is invalid, the vehicle is more likely to run under the unknown tire pressure state, and serious potential safety hazards exist. Disclosure of Invention The invention provides a tire inflation and deflation system with a redundancy function, a control method thereof and a vehicle, which effectively make up for the defect of a single detection mode in the aspect of reliability, and can accurately regulate the pressure in a tire when a first tire pressure detection device or a fault exists between the first tire pressure detection device and a controller. In a first aspect, the present invention provides a method for controlling a tire inflation and deflation system having a redundancy function, the tire inflation and deflation system including a plurality of first tire pressure detecting devices, inflation and deflation devices, and a controller; The first tire pressure detection devices are arranged in the tires in a one-to-one correspondence manner and are all in communication connection with the controller, the air charging and discharging device is connected with the air homogenizing channels of the tires and is electrically connected with the controller, the air charging and discharging device comprises an electromagnetic combination valve, and a second tire pressure detection device is arranged in the electromagnetic combination valve and is connected with the air homogenizing channels of the tires and is electrically connected with the controller; The control method comprises the following steps: When the first tire pressure detection value generated by any one of the first tire pressure detection devices fails to be obtained, controlling the second tire pressure detection device to start detecting the pressure in the tire, and generating a second tire pressure detection value; And adjusting the working state of the air charging and discharging device according to the second tire pressure detection value and