CN108790626B - Safety control system and control method applying central inflation and deflation system - Google Patents
Safety control system and control method applying central inflation and deflation system Download PDFInfo
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- CN108790626B CN108790626B CN201810529958.8A CN201810529958A CN108790626B CN 108790626 B CN108790626 B CN 108790626B CN 201810529958 A CN201810529958 A CN 201810529958A CN 108790626 B CN108790626 B CN 108790626B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
- B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0486—Signalling devices actuated by tyre pressure mounted on the wheel or tyre comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
- B60C23/0488—Movement sensor, e.g. for sensing angular speed, acceleration or centripetal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/18—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a safety control system and a control method applying a central inflation and deflation system, which effectively control the central inflation and deflation system through the steps of power-on self-check, mode control, parameter display and the like; the central inflation and deflation system is considered in a unified mode by the vehicle control system, and the display gives early warning and alarm prompts after the set vehicle speed is exceeded, so that the safety of the vehicle is guaranteed fundamentally, the abrasion of tires is reduced, the risk of tire burst is reduced, a driver is effectively reminded, and the risk caused by misoperation is objectively reduced. Especially for heavy vehicles, has very important significance.
Description
Technical Field
The invention relates to a central tire inflation and deflation control method, belongs to the field of vehicle tire inflation and deflation control, and particularly relates to a safety control system and a control method applying a central inflation and deflation system.
Background
At present, a central inflation and deflation system is applied to a vehicle, is a set of relatively independent systems, subjectively controls functions of the central inflation and deflation system according to requirements of a driver, such as opening, closing, inflation, deflation, pressure maintaining, pressure measuring and other operations, and can also set working modes of the central inflation and deflation system, such as off-road, highway, soft and other ground. In various modes, the central inflation/deflation system autonomously controls the tire pressure of the tire. However, each tire has its own characteristic table (hereinafter referred to as a tire characteristic table) or tire characteristic function relationship, and under a certain load, the tire pressure and the vehicle speed are related. The qualitative relationship between the two is that when the tire pressure of the tire is reduced, the maximum allowable vehicle speed of the whole vehicle is also reduced. This presents a risk that at a certain load, a certain tyre pressure, the driver is not aware of what the maximum allowable vehicle speed is under this condition. When the maximum allowable vehicle speed at the load and the tire pressure is exceeded, there is a risk of accelerated wear of the tire and even tire burst.
Meanwhile, when the vehicle speed signal comes from a vehicle speed sensor and is calculated by a vehicle controller, and the vehicle speed signal exceeds 30km/h, the power supply of the central inflation and deflation system is cut off, so that the use of the central inflation and deflation system is fundamentally forbidden, namely the power supply of the central inflation and deflation system is cut off, the display function of the central inflation and deflation system is lost, namely the current working state, the working mode, the tire pressure and other important information cannot be displayed and transmitted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a safety control system and a control method applying a central inflation and deflation system, which can effectively reduce the abrasion of tires, reduce the risk of tire burst, effectively remind drivers and greatly reduce the risk caused by misoperation.
In order to achieve the purpose, the invention adopts the technical scheme that: a safety control system employing a central inflation and deflation system, comprising a controller, the controller having connected thereto: the central inflation and deflation system is used for executing central inflation and deflation operation and providing relevant parameters such as tire pressure and the like; the whole vehicle load sensor is used for providing a whole vehicle load value; the vehicle speed signal detection module is used for providing a vehicle speed signal; an engine ECU for controlling the engine; a display for displaying the current parameter.
Further, the vehicle speed signal detection module comprises an ABS front wheel axle rotating speed sensor, the rotating speed of the ABS front wheel axle is detected and transmitted to the controller, and the controller converts the rotating speed into the vehicle speed; meanwhile, the vehicle speed signal detection module can also be a vehicle speed sensor in the vehicle, and the vehicle speed signal is directly transmitted to the controller through the vehicle speed sensor.
A safety control method using central inflation/deflation, comprising the steps of:
A. power-on self-test:
after the vehicle is powered on, the controller firstly detects whether the central inflation and deflation system is opened, namely detects whether a node of the central inflation and deflation system is connected to the vehicle control system through the J1939 bus, if the node is not detected, the controller controls the display to send out a prompt, and a driver needs to manually start the central inflation and deflation system; if the node is detected, the central inflation and deflation system is opened, and the step B is entered;
B. standby state:
in this state, the bridge circuit can be selected according to the requirement, the operated bridge circuit is set, and the mode is selected after the bridge circuit is selected, wherein the mode comprises off-road, highway, loose and soft, direct charging, direct discharging, pressure maintaining and pressure measuring, and one of the modes can be selected, wherein the off-road, highway and loose and soft modes are preset automatic charging and discharging modes, and after the mode is selected, the central charging and discharging system charges or discharges the tire so as to enable the tire pressure to reach the set tire pressure of the corresponding mode; the direct charging and the direct discharging are two modes of manual operation, pressure measurement needs to be manually selected in the direct charging and the direct discharging processes to detect the tire pressure, and after a target value is reached, pressure maintaining is manually selected to stop charging and discharging; entering step C at the same time;
C. and (3) parameter display:
the controller controls the display to display the current working mode and parameter information of central inflation and deflation; if the fault exists, the central inflation and deflation fault code information is displayed; the central inflation and deflation system measures the tire pressure of each tire by adopting startup and timing, and transmits the acquired tire pressure data to the controller, and the controller controls the display to display the latest detected tire pressure of each tire; meanwhile, the controller processes signals collected by the whole vehicle load sensor and sends the signals to the display, and the display is controlled to display the current load value of the whole vehicle.
Further, in the standby state step, the method also comprises a vehicle speed detection step and a whole vehicle load value detection step: after the controller receives the signal sent by the load sensor of the whole vehicle, according to the current load value of the whole vehicle and the characteristic function relationship of the used tires, the controller performs different types of speed-limiting control on the whole vehicle under different tire pressures, and particularly indicates the tire pressure, which is the maximum value after comparing the tire pressures of the tires under the current state of the vehicle; if the vehicle speed is close to or exceeds the maximum vehicle speed allowed by the current tire pressure specified by the tire characteristic functional relation, the controller controls the display to prompt and carry out engine speed limiting.
Further, in the standby state step, the mode switching in the standby state can be only performed below the vehicle speed of 30km/h, the tire pressure of the tire needs to be measured below the vehicle speed of 30km/h, the tire pressure of each tire is measured by starting up, the tire pressure of each tire is measured again at certain time intervals after the tire pressure is measured by starting up, the acquired data is sent to the controller in real time, and the controller controls the display to display the latest tire pressure of the tire in real time; when the speed is higher than 30km/h, the pressure is not measured temporarily, so as to ensure the driving safety.
Further, in the vehicle speed monitoring step, the vehicle speed control method includes: when the controller detects that the current vehicle speed exceeds eighty percent of the set vehicle speed of the tire characteristic function relationship, the display displays an early warning prompt, when the current vehicle speed exceeds the set vehicle speed of the tire characteristic function relationship, the display displays an alarm prompt, and after the alarm occurs, the controller sends a signal to the engine ECU to limit the rotating speed of the engine and prevent the vehicle speed from being too fast.
Further, in the vehicle speed monitoring step, the vehicle speed acquisition method comprises the following steps: the ABS of the vehicle sends the rotating speed of the front wheel shaft to the controller, and the controller obtains the current vehicle speed; the controller monitors the ABS node in real time in the process of acquiring the vehicle speed, when finding that the ABS node is not accessed into a J1939 bus of the vehicle or the ABS has a fault, the controller controls the display to display an alarm prompt, simultaneously transmits a signal to the central inflation and deflation system, forbids the central inflation and deflation system to use the vehicle speed signal acquired by the ABS at the moment, simultaneously limits the central inflation and deflation system to use, and stops the central inflation and deflation system from operating in a selected mode on the tire; the central inflation and deflation system only transmits the current parameters to the controller, and the controller controls the display to display the parameters of the current central inflation and deflation system.
Further, in the vehicle speed monitoring step, the vehicle speed acquisition method comprises the following steps: the controller receives a detection signal of a vehicle speed sensor in the vehicle, the controller firstly identifies a vehicle speed signal, if the current vehicle speed signal is greater than 30km/h, the controller controls the central inflation and deflation system to limit the operation of the selected mode, the central inflation and deflation system only transmits the current parameters to the controller, and the controller controls the display to display the parameters of the current central inflation and deflation system.
The invention has the beneficial effects that: the central inflation and deflation system is considered in a unified mode, and the display gives out early warning and alarm prompts after the set vehicle speed is exceeded, so that the safety of the vehicle is fundamentally guaranteed, the abrasion of tires is reduced, the risk of tire burst is reduced, a driver is effectively reminded, and the risk caused by misoperation is objectively reduced. Especially for heavy vehicles, has very important significance.
Drawings
FIG. 1 is a schematic diagram of a control system according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a safety control system using a central inflation/deflation system comprises a controller, to which are connected: the central inflation and deflation system is used for executing central inflation and deflation operation and providing relevant parameters such as tire pressure and the like; the whole vehicle load sensor is used for providing a whole vehicle load value; the vehicle speed signal detection module is used for providing a vehicle speed signal; an engine ECU for controlling the engine; a display for displaying the current parameter.
Further, the vehicle speed signal detection module comprises an ABS front wheel axle rotating speed sensor, the rotating speed of the ABS front wheel axle is detected and transmitted to the controller, and the controller converts the rotating speed into the vehicle speed; meanwhile, the vehicle speed signal detection module can also be a vehicle speed sensor in the vehicle, and the vehicle speed signal is directly transmitted to the controller through the vehicle speed sensor.
A safety control method using central inflation/deflation, comprising the steps of:
A. power-on self-test:
after the vehicle is powered on, the controller firstly detects whether the central inflation and deflation system is opened, namely detects whether a node of the central inflation and deflation system is connected to the vehicle control system through the J1939 bus, if the node is not detected, the controller controls the display to send out a prompt, and a driver needs to manually start the central inflation and deflation system; if the node is detected, the central inflation and deflation system is opened, and the step B is entered;
B. standby state:
in this state, the bridge circuit can be selected according to the requirement, the operated bridge circuit is set, and the mode is selected after the bridge circuit is selected, wherein the mode comprises off-road, highway, loose and soft, direct charging, direct discharging, pressure maintaining and pressure measuring, and one of the modes can be selected, wherein the off-road, highway and loose and soft modes are preset automatic charging and discharging modes, and after the mode is selected, the central charging and discharging system charges or discharges the tire so as to enable the tire pressure to reach the set tire pressure of the corresponding mode; the direct charging and the direct discharging are two modes of manual operation, pressure measurement needs to be manually selected in the direct charging and the direct discharging processes to detect the tire pressure, and after a target value is reached, pressure maintaining is manually selected to stop charging and discharging; entering step C at the same time;
C. and (3) parameter display:
the controller controls the display to display the current working mode and parameter information of central inflation and deflation; if the fault exists, the central inflation and deflation fault code information is displayed; the central inflation and deflation system measures the tire pressure of each tire by adopting startup and timing, and transmits the acquired tire pressure data to the controller, and the controller controls the display to display the latest detected tire pressure of each tire; meanwhile, the controller processes signals collected by the whole vehicle load sensor and sends the signals to the display, and the display is controlled to display the current load value of the whole vehicle.
Further, in the standby state step, the method also comprises a vehicle speed detection step and a whole vehicle load value detection step: after the controller receives the signal sent by the load sensor of the whole vehicle, according to the current load value of the whole vehicle and the characteristic function relationship of the used tires, the controller performs different types of speed-limiting control on the whole vehicle under different tire pressures, and particularly indicates the tire pressure, which is the maximum value after comparing the tire pressures of the tires under the current state of the vehicle; if the vehicle speed is close to or exceeds the maximum vehicle speed allowed by the current tire pressure specified by the tire characteristic functional relation, the controller controls the display to prompt and carry out engine speed limiting.
Further, in the standby state step, the mode switching in the standby state can be only performed below 30km/h, the tire pressure of the tire needs to be measured below 30km/h, the tire pressure of each tire is measured by starting up, the tire pressure of each tire is measured again at a certain time interval (currently, one hour is set, and other time intervals can be set) after the tire pressure is measured by starting up, the acquired data is sent to the controller in real time, and the controller controls the display to display the latest tire pressure of the tire in real time; when the speed is higher than 30km/h, the pressure is not measured temporarily, so as to ensure the driving safety.
Further, in the vehicle speed monitoring step, the vehicle speed control method includes: when the controller detects that the current vehicle speed exceeds eighty percent of the set vehicle speed of the tire characteristic function relationship, the display displays an early warning prompt, when the current vehicle speed exceeds the set vehicle speed of the tire characteristic function relationship, the display displays an alarm prompt, and after the alarm occurs, the controller sends a signal to the engine ECU to limit the rotating speed of the engine and prevent the vehicle speed from being too fast. The tire characteristic function relationship adopted by the embodiment of the invention is shown in table 1; taking the tire characteristic function relationship reflected by the common tire characteristic table in table 1 as an example, assuming that the load of the whole vehicle is 9000KG at this time, the corresponding table shows that the vehicle speed of the vehicle cannot exceed 20km/h when the tire is inflated at 900kpa, the early warning prompt of the display is set when 20km/h × 80% =16km/h, the alarm prompt of the display is set when 20km/h, and the rotating speed of the engine is limited; when the tire inflation pressure is reduced to 800kpa, the vehicle speed cannot exceed 15km/h, the display early warning prompt is set when 15km/h is 80% =12km/h, the display alarm prompt is set when 15km/h is set, and the rotation speed of the engine is limited.
Table 1: common tire characteristic meter
Further, in the vehicle speed monitoring step, the vehicle speed acquisition method comprises the following steps: the ABS of the vehicle sends the rotating speed of the front wheel shaft to the controller, and the controller obtains the current vehicle speed; the controller monitors the ABS node in real time in the process of acquiring the vehicle speed, when finding that the ABS node is not accessed into a J1939 bus of the vehicle or the ABS has a fault, the controller controls the display to display an alarm prompt, simultaneously transmits a signal to the central inflation and deflation system, forbids the central inflation and deflation system to use the vehicle speed signal acquired by the ABS at the moment, simultaneously limits the central inflation and deflation system to use, and stops the central inflation and deflation system from operating in a selected mode on the tire; the central inflation and deflation system only transmits the current parameters to the controller, and the controller controls the display to display the parameters of the current central inflation and deflation system.
Further, in the vehicle speed monitoring step, the vehicle speed acquisition method comprises the following steps: the controller receives a detection signal of a vehicle speed sensor in the vehicle, the controller firstly identifies a vehicle speed signal, if the current vehicle speed signal is greater than 30km/h, the controller controls the central inflation and deflation system to limit the operation of the selected mode, the central inflation and deflation system only transmits the current parameters to the controller, and the controller controls the display to display the parameters of the current central inflation and deflation system.
In conclusion, the invention has obvious effect, is convenient and practical, uniformly considers the central inflation and deflation system, and gives out early warning and alarm prompt by the display when the set vehicle speed is exceeded, thereby fundamentally ensuring the safety of the vehicle, reducing the abrasion of the tire, reducing the risk of tire burst, effectively reminding the driver and objectively reducing the risk brought by misoperation. Especially for heavy vehicles, has very important significance.
Claims (3)
1. A control method using a safety control system employing a central inflation/deflation system, comprising a controller to which are connected:
the central inflation and deflation system is used for executing central inflation and deflation operation and providing tire pressure parameters;
the whole vehicle load sensor is used for providing a whole vehicle load value;
the vehicle speed signal detection module is used for providing a vehicle speed signal;
an engine ECU for controlling the engine;
display 'for displaying current parameters'
The method comprises the following steps:
power-on self-test:
after the vehicle is powered on, the controller firstly detects whether the central inflation and deflation system is opened, namely detects whether a node of the central inflation and deflation system is connected to the vehicle control system through the J1939 bus, if the node is not detected, the controller controls the display to send out a prompt, and a driver needs to manually start the central inflation and deflation system; if the node is detected, the central inflation and deflation system is opened, and the step B is entered;
B. standby state:
in this state, the bridge circuit can be selected according to the requirement, the operated bridge circuit is set, and the mode is selected after the bridge circuit is selected, wherein the mode comprises off-road, highway, loose and soft, direct charging, direct discharging, pressure maintaining and pressure measuring, and one of the modes can be selected, wherein the off-road, highway and loose and soft modes are preset automatic charging and discharging modes, and after the mode is selected, the central charging and discharging system charges or discharges the tire so as to enable the tire pressure to reach the set tire pressure of the corresponding mode; the direct inflation and the direct deflation are two modes of manual operation, pressure measurement needs to be manually selected to detect the tire pressure in the inflation and deflation processes, and after the tire pressure reaches a target value, the pressure measurement is manually selected to stop the inflation and deflation; entering step C at the same time;
C. and (3) parameter display:
the controller controls the display to display the current working mode and parameter information of central inflation and deflation; if the fault exists, the central inflation and deflation fault code information is displayed; the central inflation and deflation system measures the tire pressure of each tire by adopting startup and timing, and transmits the acquired tire pressure data to the controller, and the controller controls the display to display the latest detected tire pressure of each tire; meanwhile, the controller processes signals collected by the load sensor of the whole vehicle and sends the processed signals to the display, and the display is controlled to display the current load value of the whole vehicle;
in the standby state step, the method also comprises a vehicle speed detection step and a whole vehicle load value detection step: after the controller receives a signal sent by a load sensor of the whole vehicle, the controller performs different types of speed-limiting control on the whole vehicle under different tire pressures according to the current load value of the whole vehicle and the used tire characteristic function relationship, wherein the tire pressure refers to the maximum value after comparison of the tire pressures of various tires under the current state of the vehicle; if the vehicle speed is close to or exceeds the maximum allowable vehicle speed of the current tire pressure specified by the tire characteristic function relationship, the controller controls the display to prompt and carry out engine speed limiting;
in the step of monitoring the vehicle speed, the method for acquiring the vehicle speed comprises the following steps: the controller receives a detection signal of a vehicle speed sensor in the vehicle, the controller firstly identifies a vehicle speed signal, if the current vehicle speed signal is greater than 30km/h, the controller controls the central inflation and deflation system to limit the operation of a selected mode, the central inflation and deflation system only transmits the current parameter to the controller, and the controller controls the display to display the parameter of the current central inflation and deflation system;
in the step of monitoring the vehicle speed, the method for acquiring the vehicle speed comprises the following steps: the ABS of the vehicle sends the rotating speed of the front wheel shaft to the controller, and the controller obtains the current vehicle speed; the controller monitors the ABS node in real time in the process of acquiring the vehicle speed, when finding that the ABS node is not accessed into a J1939 bus of the vehicle or the ABS has a fault, the controller controls the display to display an alarm prompt, simultaneously transmits a signal to the central inflation and deflation system, forbids the central inflation and deflation system to use the vehicle speed signal acquired by the ABS at the moment, simultaneously limits the central inflation and deflation system to use, and stops the central inflation and deflation system from operating in a selected mode on the tire; the central inflation and deflation system only transmits the current parameters to the controller, and the controller controls the display to display the parameters of the current central inflation and deflation system.
2. The control method of a safety control system using a central inflation/deflation system as claimed in claim 1, wherein in the step of the standby state, the mode switching in the standby state can only be performed below 30km/h, the tire pressure of the tire needs to be measured below 30km/h, the tire pressure of each tire is measured by starting up, the tire pressure of each tire is measured again at certain time intervals after the tire pressure is measured by starting up, and the collected data is transmitted to the controller in real time, and the controller controls the display to display the latest tire pressure of the tire in real time; when the speed is higher than 30km/h, the pressure is not measured temporarily, so as to ensure the driving safety.
3. A control method using a safety control system employing a central inflation/deflation system as claimed in claim 2, wherein in the vehicle speed monitoring step, the control method for the vehicle speed is: when the controller detects that the current vehicle speed exceeds eighty percent of the set vehicle speed of the tire characteristic function relationship, the display displays an early warning prompt, when the current vehicle speed exceeds the set vehicle speed of the tire characteristic function relationship, the display displays an alarm prompt, and after the alarm occurs, the controller sends a signal to the engine ECU to limit the rotating speed of the engine and prevent the vehicle speed from being too fast.
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| CN113733819B (en) * | 2020-05-29 | 2023-02-10 | 比亚迪股份有限公司 | Tire pressure control method and device and vehicle |
| CN113879049A (en) * | 2021-11-04 | 2022-01-04 | 一汽解放汽车有限公司 | Tire pressure monitoring method, tire pressure monitoring device, computer equipment and storage medium |
| CN113954596B (en) * | 2021-11-26 | 2023-05-30 | 东风商用车有限公司 | Method for preventing two-axle tire from being worn, whole vehicle control unit and system |
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| CN106004263A (en) * | 2015-03-24 | 2016-10-12 | 福特全球技术公司 | Vehicle and method of using a spare tire |
| CN206703851U (en) * | 2016-08-31 | 2017-12-05 | 武汉元丰汽车技术发展有限公司 | Vehicle multi-shaft display panel assembly |
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