CN110203023B - Self-generating motor car wheel state monitoring system - Google Patents
Self-generating motor car wheel state monitoring system Download PDFInfo
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- CN110203023B CN110203023B CN201910505952.1A CN201910505952A CN110203023B CN 110203023 B CN110203023 B CN 110203023B CN 201910505952 A CN201910505952 A CN 201910505952A CN 110203023 B CN110203023 B CN 110203023B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 108
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
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- 206010039203 Road traffic accident Diseases 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 4
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Classifications
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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
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
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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
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0447—Wheel or tyre mounted circuits
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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
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a self-generating motor car wheel state monitoring system which comprises a wheel state monitoring unit, a central control unit and a remote monitoring unit which are connected in sequence; the wheel state monitoring unit comprises a self-generating device, a three-phase full-bridge rectifying module, a first DC/DC module, a tire temperature monitoring module, a tire pressure monitoring module, a wheel sensing module, a wheel MCU and a wireless radio frequency transmitter; the central control unit comprises a vehicle-mounted power supply, a second DC/DC module, a wireless radio frequency receiver, an in-vehicle signal display alarm module, a central control MCU and a 4G wireless remote module; the remote monitoring unit comprises a data transmission cloud platform and a remote monitoring center; the data transparent cloud platform is in bidirectional communication with the remote monitoring center through a virtual serial port; the invention solves the power supply problem of each detection module by arranging the self-generating device, and effectively monitors the motion state of the automobile wheels.
Description
Technical Field
The invention relates to the technical field of motor vehicle wheel safety performance detection, in particular to a self-generating motor vehicle wheel state monitoring system.
Background
With the continuous and rapid development of the economic society in China, the maintenance quantity of motor vehicles continues to keep a rapid growth situation. According to public security department statistics, by 12 months in 2018, the national motor vehicles keep 3.25 hundred million vehicles, and 1556 ten thousand vehicles are added compared with the 2017 end; the number of motor vehicle drivers reaches 4.07 hundred million people, and 2236 ten thousand people are added compared with the 2017 year old. The rapid increase of the number of motor vehicles causes the situation of road traffic safety to be more and more severe, and the latest research reports of the national security administration and the department of transportation show that although the road traffic accidents in China are obviously reduced in recent years, the road traffic accidents still occur at high level, the total number of the annual traffic accidents in China still remains high, the number of the accident onset and the number of the dead people respectively account for about 70% and 80% of the total number in China, so that the running security condition of the motor vehicles is more and more widely focused.
At present, an important means for national management of motor vehicles is to implement mandatory periodic safety detection on motor vehicles, but the periodic safety detection project does not fully reflect the real conditions of the motor vehicles in real time, and has certain limitations. The development of active motor vehicle operation safety state monitoring is one of important means for ensuring safe running of motor vehicles, and is also one of trends of motor vehicle operation safety detection technology development.
The wheels are the only parts which are contacted with the ground in the running process of the motor vehicle, bear the functions of loading, driving, braking, steering and the like of the whole vehicle, and are vital to the safe running of the motor vehicle. In the running process of the vehicle, parameters such as the movement posture of the wheels, the load of the wheels, the braking performance of the wheels and the like are dynamically changed, the change amount of the parameters is not known, and the index deviation in the normal range can not be easily noticed, so that corresponding preventive measures can not be timely taken, and once the parameters deviate from the safety indexes, even the bearing function is lost, traffic accidents endangering life safety can occur at any time in the running process of the vehicle. The monitoring of the wheel safety performance parameters can truly and dynamically reflect the safe running state of the vehicle in the running process, and the real-time monitoring of the wheel state of the motor vehicle has important practical significance.
At present, the wheel MAP monitoring technology is in a starting stage, and students at home and abroad have made some research progress: warker C.E. et al (2001) propose a method for monitoring the condition of a tyre during running of a motor vehicle and devised a corresponding system by which the position information and characteristic data of the tyre relative to the vehicle body can be determined by mounting tangential, lateral and radial acceleration sensors on the tyre, transmitting real-time monitoring data by a controller wirelessly to a remote receiving device, and processing and resolving the data. In addition, renato C et al (2005) mount sensor assemblies on the tire inner surface or rim thereof to detect tire pressure, temperature and number of revolutions, and additionally use extensometers to measure the curvature and deformation of the tread strip inner surface, and accelerometers to measure the acceleration intensity experienced by the tread; park et al (2006) scholars apply the camera calibration and the attitude evaluation to the wheel adjustment system, calculate the matching sequence of the image coordinates and the object coordinates through a coordinate matching algorithm, and perform non-interactive calibration and attitude evaluation. In 2006, the university of south China university of technology Lin Ying and the like propose to indirectly measure the vehicle load through parameters such as the rotation speed and the pressure of a tire, and the vehicle load is indirectly measured by utilizing the air pressure of the tire. The researches provide new ideas and new methods for constructing the wheel state monitoring system, but do not provide a power supply solution of a wheel state detection module, and do not further analyze the three-dimensional acceleration, the three-dimensional angular velocity of the wheel, the three-dimensional geomagnetic intensity of the wheel and the relation with the wheel movement state, and when the temperature of the tire is detected, single-point detection is mostly adopted, so that the temperature around the tire cannot be comprehensively detected in real time.
The wheel state monitoring module needs to do synchronous circular motion together with the wheels, so that the motion state information of the wheels is perceived in real time. The existing wheel state detection module is usually powered by a dry battery or a lithium battery, the dry battery has a certain service life, the lithium battery is also required to be periodically charged, otherwise, the detection module cannot work normally, and the dry battery or the lithium battery is not suitable for being used as a long-term power supply of the wheel state detection module; in addition, the dry battery and the lithium battery do high-speed circular motion along with the wheel, the long-term running has the risk of throwing off, the detection module cannot work normally if the detection module is light, and the potential safety hazard is brought to the running of the vehicle if the detection module is heavy. In addition, when the wheel state monitoring is carried out, the running state of the wheel is difficult to comprehensively measure by only analyzing the three-dimensional acceleration of the wheel; when the state of the wheel is abnormal, the tire pressure and the tire Wen Zhiguan can be displayed, the tire pressure can be monitored at a single point, but the real-time temperature state and the temperature rise rate around the tire are difficult to comprehensively measure by detecting the temperature of the tire at the single point.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a dynamic detection system for the safety performance of the self-generating motor vehicle wheel, which solves the long-term power supply problem of a wheel state detection module and simultaneously realizes the comprehensive detection of the real-time temperature state and the temperature rise rate around the tire.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the self-generating motor vehicle wheel state monitoring system comprises a wheel state monitoring unit, a central control unit and a remote monitoring unit which are connected in sequence;
the wheel state monitoring unit comprises a self-generating device, a three-phase full-bridge rectifying module, a first DC/DC module, a tire temperature monitoring module, a tire pressure monitoring module, a wheel sensing module, a wheel MCU and a wireless radio frequency transmitter; the self-generating device, the three-phase full-bridge rectification module and the first DC/DC module are connected in sequence; the first DC/DC module is connected with the tire temperature monitoring module, the tire pressure monitoring module, the wheel sensing module, the wheel MCU and the wireless radio frequency transmitter; the wheel MCU is connected with the tire temperature monitoring module, the tire pressure monitoring module and the wheel sensing module; the wheel MCU is connected with the wireless radio frequency transmitter;
the tire temperature monitoring module is used for monitoring the tire temperature and the temperature rise rate; the tire pressure monitoring module is used for monitoring tire pressure; the wheel sensing module comprises a triaxial accelerometer, a triaxial gyroscope and a triaxial magnetic induction instrument; the triaxial accelerometer is used for sensing three-dimensional acceleration of the wheel; the three-axis gyroscope is used for sensing the three-dimensional angular velocity of the wheel; the triaxial magnetic induction instrument is used for sensing the three-dimensional geomagnetic intensity of the wheel;
the self-generating device generates three-phase alternating current, the three-phase alternating current is rectified by the three-phase full-bridge rectification module and then is input into the first DC/DC module to be filtered and stabilized, and a working power supply is provided for the tire temperature monitoring module, the tire pressure monitoring module, the wheel sensing module, the wheel MCU and the wireless radio frequency transmitter;
the central control unit comprises a vehicle-mounted power supply, a second DC/DC module, a wireless radio frequency receiver, an in-vehicle signal display alarm module, a central control MCU and a 4G wireless remote module; the vehicle-mounted power supply is connected with the second DC/DC module; the second DC/DC module is connected with the wireless radio frequency receiver, the in-vehicle signal display alarm module, the central control MCU and the 4G wireless remote module; the central control MCU is connected with the wireless radio frequency receiver and the in-vehicle signal display alarm module; the wireless radio frequency receiver is connected with the wireless radio frequency transmitter; the central control MCU is in bidirectional communication with the 4G wireless remote module through a serial port; the vehicle-mounted power supply provides a working power supply for the wireless radio frequency receiver, the in-vehicle signal display alarm module, the central control MCU and the 4G wireless remote module;
the remote monitoring unit comprises a data transmission cloud platform and a remote monitoring center; the data transparent cloud platform is in bidirectional communication with the remote monitoring center through a virtual serial port;
the tire temperature monitoring module transmits the monitored tire temperature and the temperature rise rate to the wheel MCU, the tire pressure monitoring module transmits the monitored tire pressure to the wheel MCU, and the wheel sensing module transmits the monitored three-dimensional acceleration parameter, the three-dimensional angular velocity parameter and the three-dimensional geomagnetic intensity parameter to the wheel MCU; the vehicle wheel MCU transmits the received temperature, temperature rise rate, tire pressure, three-dimensional acceleration parameters of the vehicle wheel, three-dimensional angular velocity parameters of the vehicle wheel and three-dimensional geomagnetic intensity parameter signals of the vehicle wheel to the central control MCU sequentially through the wireless radio frequency transmitter and the wireless radio frequency receiver, the central control MCU uploads the received signal data to the Internet through the serial port and the 4G wireless remote module, the data transmission cloud platform is communicated with the Internet, the signal data transmitted by the Internet is received in real time, then the received signal data is sent to the remote monitoring center through the virtual serial port for fusion analysis, if the analysis result deviates from a set value, an early warning signal is generated, and the early warning signal is sequentially sent back to the central control MCU through the virtual serial port, the data transmission cloud platform, the Internet, the 4G wireless remote module and the serial port and finally transmitted to the in-vehicle signal display alarm module to send early warning to a driver.
Preferably, the remote monitoring center calculates and obtains the wheel movement posture parameter by utilizing the wheel three-dimensional acceleration parameter, the wheel three-dimensional angular velocity parameter and the wheel three-dimensional geomagnetic intensity parameter; the remote monitoring center obtains wheel braking parameters through signal processing by utilizing wheel acceleration signals;
the remote monitoring center performs data fusion analysis by utilizing the wheel movement attitude parameters, the wheel braking parameters, the tire pressure, the temperature and the temperature rise rate parameters to obtain the variation trend of the safety performance of the wheels;
when the variation trend of the wheel movement posture parameter, the wheel braking parameter and the wheel safety performance deviates from the set value, an early warning signal is returned to the central control MCU in the vehicle through the 4G internet and the wireless remote communication module, and then the early warning signal is transmitted to the signal display alarm module in the vehicle, so that early warning is sent to a driver.
Preferably, the three-dimensional acceleration parameters of the wheel include: tangential acceleration, lateral acceleration and centripetal acceleration of the wheel.
Preferably, the three-dimensional angular velocity parameters of the wheel include: wheel side inclination speed, rotation angular speed, and heading angular speed.
Preferably, the wheel movement posture parameters include: wheel roll angle, wheel rotation angle, wheel heading angle, wheel vertical acceleration, wheel three-dimensional acceleration, and wheel three-dimensional angular velocity.
Preferably, the wheel braking parameters include: the degree of inequality in the balance of the wheel braking deceleration and the left and right wheel braking decelerations.
Preferably, the self-generating device is arranged at the center of an automobile hub and comprises a permanent magnet magnetic shaft, a three-phase armature winding, a self-generating device shell and a connecting piece; magnetic shaft eccentric iron blocks are arranged at two ends of the permanent magnet magnetic shaft; the shell of the self-generating device is fixedly connected with the center of the hub through a connecting piece; two ball bearing bearings are fixedly connected to the shell of the self-generating device; the two ball bearing bearings are respectively connected with two ends of the permanent magnet magnetic shaft; the three-phase armature winding is fixed on the shell of the self-generating device, the three-phase armature winding adopts a nine-pole three-phase structure, the three-phase armature winding moves circumferentially along with the hub, and when the three-phase armature winding rotates along with the hub, the three-phase armature winding cuts the permanent magnet magnetic induction wire to generate three-phase alternating current.
Preferably, the permanent magnet magnetic shaft adopts an eccentric structure and naturally faces downwards under the action of gravity, so that the permanent magnet magnetic shaft does not do circular motion along with the wheel.
Preferably, the tire temperature monitoring module comprises a plurality of temperature sensors, wherein the temperature sensors are circumferentially arranged along the tire, and the interval between every two temperature sensors is 60 degrees.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the problem of the power supply of monitoring module on the wheel rotator is solved, adopts from the electricity generation technology, replaces traditional dry battery or lithium cell power supply, and when the car moves (the speed of traveling is greater than 25 km/h), can guarantee that monitoring module normally works, normal monitoring wheel's motion state.
2. The method has the advantages that the parameter information such as the wheel movement posture, the tire pressure, the temperature rise rate, the wheel safety performance change trend and the like is obtained based on the combined sensor, and the method is more comprehensive and scientific than the prior art, and can truly and dynamically reflect the wheel safety running state.
3. 6 temperature sensors (the distance between measuring points is 60 degrees) are uniformly arranged on the inner side of the tire, the temperature state and the temperature rise rate of the whole circumference of the tire are monitored in real time, the temperature state of the tire can be comprehensively measured, the temperature change is a gradual change process, the temperature and the temperature rise rate of the whole circumference of the wheel are comprehensively monitored, and early warning can be sent out in advance when the temperature or the temperature rise rate is abnormal.
4. Visual data such as tire temperature, tire pressure and the like are directly displayed, an alarm signal is sent when the visual data deviate from a normal value, other state data are analyzed in a remote background, MCU resources of a wheel state monitoring system are not occupied, MCU efficiency can be improved, an analysis result is returned to a central control MCU in a vehicle through a remote wireless communication module and the Internet, and an early warning signal is sent to a driver.
5. The wheel is the only part contacted with the ground in the running process of the automobile, is the first defense line of the safe running of the automobile, and can truly and dynamically reflect the safe running state of the wheel in the running process by comprehensively monitoring the motion state parameters of the wheel.
6. And a remote interconnection platform of the vehicle and a remote monitoring center is established, a complete wheel state monitoring system is established, a standard data interface is provided, and related measurement data can be used for reference application of related supervision departments.
7. The communication with the remote monitoring center adopts a 4G wireless communication mode, the maximum data transmission rate exceeds 100Mbps, the rate is 1 ten thousand times of the data transmission rate of the mobile phone and 50 times of the data transmission rate of the 3G mobile phone, and the real-time performance of the data transmission is greatly improved.
Drawings
FIG. 1 is a schematic block diagram of a self-generating locomotive wheel condition monitoring system of the present invention;
FIG. 2 is a schematic block diagram of a wheel condition monitoring unit of the self-generating locomotive wheel condition monitoring system of the present invention;
FIG. 3 is a schematic block diagram of a hollow unit and a remote monitoring unit of the self-generating locomotive wheel state monitoring system of the present invention;
FIG. 4 is a schematic diagram of the station and module mounting of the self-generating locomotive wheel condition monitoring system of the present invention;
fig. 5 is a schematic diagram of a measuring point and a self-generating device of the self-generating motor vehicle wheel state monitoring system according to the present invention.
The technical characteristics corresponding to the marks in the drawings are as follows: the automobile tire temperature monitoring device comprises a 1-wheel, a 11-tire, a 12-hub, a 2-wheel sensing module, a 3-self-generating device, a 31-permanent magnet magnetic shaft, a 32-three-phase armature winding, a 33-magnetic shaft eccentric iron block, a 34-ball support bearing, a 35-self-generating device shell, a 36-connecting piece, a 4-first DC/DC module, a 5-tire pressure monitoring module, a 6-tire temperature monitoring point, a 7-central control MCU, an 8-4G wireless remote module and a 9-in-automobile signal display alarm module.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1, the self-generating motor vehicle wheel state monitoring system comprises a wheel state monitoring unit, a central control unit and a remote monitoring unit which are connected in sequence;
as shown in fig. 2, the wheel state monitoring unit includes a self-generating device 3, a three-phase full-bridge rectifier module, a first DC/DC (DC/DC is a power switch module that converts electric energy of one voltage value into electric energy of another voltage value in a direct current circuit), a tire temperature monitoring module, a tire pressure monitoring module 5, a wheel sensing module 2, a wheel MCU ((Microcontroller Unit; MCU), also called a single-chip microcomputer or a single-chip microcomputer), and a wireless radio frequency transmitter; the self-generating device, the three-phase full-bridge rectification module and the first DC/DC module 4 are connected in sequence; the first DC/DC module 4 is connected with the tire temperature monitoring module, the tire pressure monitoring module 5, the wheel sensing module 2, the wheel MCU and the wireless radio frequency transmitter; the wheel MCU is connected with the tire temperature monitoring module, the tire pressure monitoring module 5 and the wheel sensing module 2; the wheel MCU is connected with the wireless radio frequency transmitter;
as shown in fig. 4, the tire temperature monitoring module is used for monitoring the tire temperature and the temperature rise rate; the tire temperature monitoring module comprises 6 tire temperature monitoring points 6, each monitoring point is provided with a temperature sensor, and the temperature sensors are circumferentially arranged along the tire and are spaced at an interval of 60 degrees; the temperature state and the temperature rise rate of the tire are monitored in real time, the temperature state of the tire can be comprehensively measured, the temperature change is a gradual change process, the temperature and the temperature rise rate of the tire are comprehensively monitored, and early warning can be sent out in advance when the temperature or the temperature rise rate is abnormal.
As shown in fig. 4, the tire pressure monitoring module 5 is configured to monitor the tire pressure;
the wheel sensing module 2 comprises a triaxial accelerometer, a triaxial gyroscope and a triaxial magnetic induction instrument; the triaxial accelerometer is used for sensing three-dimensional acceleration of the wheel; the three-axis gyroscope is used for sensing the three-dimensional angular velocity of the wheel; the triaxial magnetic induction instrument is used for sensing the three-dimensional geomagnetic intensity of the wheel;
the system obtains the parameter information such as the wheel movement gesture, the tire pressure, the temperature rise rate, the wheel safety performance change trend and the like based on the combined sensor, is more comprehensive and scientific than the prior art, and can truly and dynamically reflect the wheel safety operation state.
As shown in fig. 4 and 5, the motor vehicle is provided with a wheel 1, and the wheel is provided with a tire 11 and a hub 12;
the self-generating device 3 is arranged at the center of the automobile hub 12, and the self-generating device 3 comprises a permanent magnet magnetic shaft 31, a three-phase armature winding 32, a self-generating device shell 35 and a connecting piece 36; magnetic shaft eccentric iron blocks 33 are arranged at two ends of the permanent magnet magnetic shaft 31; the permanent magnet magnetic shaft 31 adopts an eccentric structure, naturally faces downwards under the action of gravity, and does not do circular motion along with the wheels.
As shown in fig. 5, the self-generating device housing 35 is fixedly connected with the center of the hub 12 through a connecting piece 36; two ball bearing bearings 34 are fixedly connected to the self-generating device housing 35; the two ball bearing bearings 34 are respectively connected with two ends of the permanent magnet shaft 31; the three-phase armature winding 32 is fixed on the housing 35 of the self-generating device, the three-phase armature winding 32 adopts a nine-pole three-phase structure, the three-phase armature winding 32 moves circumferentially along with the hub 12, when the three-phase armature winding 32 rotates along with the hub 12, the three-phase armature winding 32 cuts a permanent magnet magnetic induction line to generate three-phase alternating current, the three-phase alternating current is rectified by the three-phase full-bridge rectifying module and then is input into the first DC/DC module for filtering and voltage stabilization, and a working power supply is provided for the tire temperature monitoring module, the tire pressure monitoring module, the wheel sensing module, the wheel MCU and the wireless radio frequency transmitter.
The system solves the power supply problem of each monitoring module on the wheel rotator through the self-generating device, adopts the self-generating technology to replace the traditional dry battery or lithium battery for power supply, and can ensure the normal work of each monitoring module and the normal monitoring of the motion state of the wheel when the automobile moves (the running speed is greater than 25 km/h).
The wheel is the only part contacted with the ground in the running process of the automobile, is the first defense line of the safe running of the automobile, and can truly and dynamically reflect the safe running state of the wheel in the running process by comprehensively monitoring the motion state parameters of the wheel.
As shown in fig. 3, the central control unit comprises a vehicle-mounted power supply, a second DC/DC module, a wireless radio frequency receiver, an in-vehicle signal display alarm module 9, a central control MCU7 and a 4G wireless remote module 8; the vehicle-mounted power supply is connected with the second DC/DC module; the second DC/DC module is connected with the wireless radio frequency receiver, the in-vehicle signal display alarm module 9, the central control MCU7 and the 4G wireless remote module 8; the central control MCU7 is connected with the wireless radio frequency receiver and the in-vehicle signal display alarm module 9; the wireless radio frequency receiver is connected with the wireless radio frequency transmitter; the central control MCU7 is in bidirectional communication with the 4G wireless remote module 8 through a serial port; the vehicle-mounted power supply provides a working power supply for the wireless radio frequency receiver, the in-vehicle signal display alarm module 9, the central control MCU7 and the 4G wireless remote module 8;
as shown in fig. 3, the remote monitoring unit comprises a data transmission cloud platform and a remote monitoring center; the data transparent cloud platform is in bidirectional communication with the remote monitoring center through a virtual serial port;
and a remote interconnection platform of the vehicle and a remote monitoring center is established, a complete wheel state monitoring system is established, a standard data interface is provided, and related measurement data can be used for reference application of related supervision departments.
The data transparent transmission cloud platform is communicated with the 4G wireless remote module 8 through the Internet; the maximum data transmission rate of the 4G wireless communication mode adopted by the system exceeds 100Mbps, and the rate is 1 ten thousand times of the data transmission rate of the mobile phone and 50 times of the data transmission rate of the 3G mobile phone, so that the real-time performance of the data transmission is greatly improved.
The visual data such as the tire temperature, the tire pressure and the like of the system adopts a direct display mode, an alarm signal is sent when the visual data deviate from a normal value, other state data are analyzed in a remote background, MCU resources of a wheel state monitoring system are not occupied, MCU efficiency can be improved, an analysis result is returned to a central control MCU in the vehicle through a remote wireless communication module and the Internet, and an early warning signal is sent to a driver.
The remote monitoring center calculates and obtains a wheel movement attitude parameter by utilizing a wheel three-dimensional acceleration parameter, a wheel three-dimensional angular velocity parameter and a wheel three-dimensional geomagnetic intensity parameter; the wheel motion attitude parameters include: wheel roll angle, wheel rotation angle, wheel heading angle, wheel vertical acceleration, wheel three-dimensional acceleration and wheel three-dimensional angular velocity; the three-dimensional acceleration parameters of the wheel include: tangential acceleration, lateral acceleration and centripetal acceleration of the wheel. The three-dimensional angular velocity parameters of the wheel include: wheel side inclination speed, rotation angular speed, and heading angular speed.
The remote monitoring center obtains wheel braking parameters through signal processing by utilizing wheel acceleration signals; the wheel braking parameters include: the degree of inequality in the balance of the wheel braking deceleration and the left and right wheel braking decelerations.
The remote monitoring center performs data fusion analysis by utilizing the wheel movement attitude parameters, the wheel braking parameters, the tire pressure, the temperature and the temperature rise rate parameters to obtain the variation trend of the safety performance of the wheels;
when the variation trend of the wheel movement posture parameter, the wheel braking parameter and the wheel safety performance deviates from the set value, an early warning signal is returned to the central control MCU in the vehicle through the 4G internet and the wireless remote communication module, and then the early warning signal is transmitted to the signal display alarm module in the vehicle, so that early warning is sent to a driver.
The working principle of the system is described in detail below:
as shown in fig. 2 and 3, the tire temperature monitoring module transmits the monitored tire temperature and the temperature rise rate to the wheel MCU, the tire pressure monitoring module 5 transmits the monitored tire pressure to the wheel MCU, and the wheel sensing module 2 transmits the monitored wheel three-dimensional acceleration parameter, the wheel three-dimensional angular velocity parameter and the wheel three-dimensional geomagnetic intensity parameter to the wheel MCU; the vehicle wheel MCU transmits the received temperature, temperature rise rate, tire pressure, three-dimensional acceleration parameters of the vehicle wheel, three-dimensional angular velocity parameters of the vehicle wheel and three-dimensional geomagnetic intensity parameter signals of the vehicle wheel to the central control MCU7 sequentially through the wireless radio frequency transmitter and the wireless radio frequency receiver, visual signal data such as tire pressure, tire temperature and the like are processed by the central control MCU7 and then transmitted to the in-vehicle signal display alarm module 9, the central control MCU7 uploads the received signal data to the Internet through the serial port and the 4G wireless remote module 8, the data transmission cloud platform communicates with the Internet, receives the signal data transmitted by the Internet in real time, then transmits the received signal data to the remote monitoring center through the virtual serial port for fusion analysis, if an analysis result deviates from a set value, an early warning signal is generated, and the early warning signal sequentially passes through the virtual serial port, the data transmission cloud platform, the Internet, the 4G wireless remote module and the serial port to the central control MCU7 and finally transmits the signal display alarm module 9 to a driver to send early warning;
the foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims; variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (7)
1. The utility model provides a from motor car wheel state monitoring system which characterized in that: the system comprises a wheel state monitoring unit, a central control unit and a remote monitoring unit which are connected in sequence;
the wheel state monitoring unit comprises a self-generating device, a three-phase full-bridge rectifying module, a first DC/DC module, a tire temperature monitoring module, a tire pressure monitoring module, a wheel sensing module, a wheel MCU and a wireless radio frequency transmitter; the self-generating device, the three-phase full-bridge rectification module and the first DC/DC module are connected in sequence; the first DC/DC module is connected with the tire temperature monitoring module, the tire pressure monitoring module, the wheel sensing module, the wheel MCU and the wireless radio frequency transmitter; the wheel MCU is connected with the tire temperature monitoring module, the tire pressure monitoring module and the wheel sensing module; the wheel MCU is connected with the wireless radio frequency transmitter;
the tire temperature monitoring module is used for monitoring the tire temperature and the temperature rise rate; the tire pressure monitoring module is used for monitoring tire pressure; the wheel sensing module comprises a triaxial accelerometer, a triaxial gyroscope and a triaxial magnetic induction instrument; the triaxial accelerometer is used for sensing three-dimensional acceleration of the wheel; the three-axis gyroscope is used for sensing the three-dimensional angular velocity of the wheel; the triaxial magnetic induction instrument is used for sensing the three-dimensional geomagnetic intensity of the wheel;
the self-generating device generates three-phase alternating current, the three-phase alternating current is rectified by the three-phase full-bridge rectification module and then is input into the first DC/DC module to be filtered and stabilized, and a working power supply is provided for the tire temperature monitoring module, the tire pressure monitoring module, the wheel sensing module, the wheel MCU and the wireless radio frequency transmitter;
the central control unit comprises a vehicle-mounted power supply, a second DC/DC module, a wireless radio frequency receiver, an in-vehicle signal display alarm module, a central control MCU and a 4G wireless remote module; the vehicle-mounted power supply is connected with the second DC/DC module; the second DC/DC module is connected with the wireless radio frequency receiver, the in-vehicle signal display alarm module, the central control MCU and the 4G wireless remote module; the central control MCU is connected with the wireless radio frequency receiver and the in-vehicle signal display alarm module; the wireless radio frequency receiver is connected with the wireless radio frequency transmitter; the central control MCU is in bidirectional communication with the 4G wireless remote module through a serial port; the vehicle-mounted power supply provides a working power supply for the wireless radio frequency receiver, the in-vehicle signal display alarm module, the central control MCU and the 4G wireless remote module;
the remote monitoring unit comprises a data transmission cloud platform and a remote monitoring center; the data transparent cloud platform is in bidirectional communication with the remote monitoring center through a virtual serial port;
the tire temperature monitoring module transmits the monitored tire temperature and the temperature rise rate to the wheel MCU, the tire pressure monitoring module transmits the monitored tire pressure to the wheel MCU, and the wheel sensing module transmits the monitored three-dimensional acceleration parameter, the three-dimensional angular velocity parameter and the three-dimensional geomagnetic intensity parameter to the wheel MCU; the wheel MCU transmits the received temperature, temperature rise rate, tire pressure, three-dimensional acceleration parameters of the wheel, three-dimensional angular velocity parameters of the wheel and three-dimensional geomagnetic intensity parameter signals of the wheel to the central control MCU sequentially through the wireless radio frequency transmitter and the wireless radio frequency receiver, the central control MCU uploads the received signal data to the Internet through the serial port and the 4G wireless remote module, the data transmission cloud platform is communicated with the Internet, the signal data transmitted by the Internet is received in real time, then the received signal data is transmitted to the remote monitoring center through the virtual serial port for fusion analysis, if the analysis result deviates from a set value, an early warning signal is generated, and the early warning signal is transmitted back to the central control MCU sequentially through the virtual serial port, the data transmission cloud platform, the Internet, the 4G wireless remote module and the serial port and finally transmitted to the in-vehicle signal display alarm module to send early warning to a driver;
the self-generating device is arranged at the center of the automobile hub and comprises a permanent magnet magnetic shaft, a three-phase armature winding, a self-generating device shell and a connecting piece; magnetic shaft eccentric iron blocks are arranged at two ends of the permanent magnet magnetic shaft; the shell of the self-generating device is fixedly connected with the center of the hub through a connecting piece; two ball bearing bearings are fixedly connected to the shell of the self-generating device; the two ball bearing bearings are respectively connected with two ends of the permanent magnet magnetic shaft; the three-phase armature winding is fixed on the shell of the self-generating device, the three-phase armature winding adopts a nine-pole three-phase structure, the three-phase armature winding moves along with the hub in a circular way, and when the three-phase armature winding rotates along with the hub, the three-phase armature winding cuts a permanent magnet magnetic induction wire to generate three-phase alternating current;
the tire temperature monitoring module comprises a plurality of temperature sensors, wherein the temperature sensors are circumferentially arranged along the tire, and the interval between every two temperature sensors is 60 degrees.
2. A self-generating motor vehicle wheel condition monitoring system as defined in claim 1, wherein: the remote monitoring center calculates and obtains a wheel movement attitude parameter by utilizing a wheel three-dimensional acceleration parameter, a wheel three-dimensional angular velocity parameter and a wheel three-dimensional geomagnetic intensity parameter; the remote monitoring center obtains wheel braking parameters through signal processing by utilizing wheel acceleration signals;
the remote monitoring center performs data fusion analysis by utilizing the wheel movement attitude parameters, the wheel braking parameters, the tire pressure, the temperature and the temperature rise rate parameters to obtain the variation trend of the safety performance of the wheels;
when the change trend of the wheel movement posture parameter, the wheel braking parameter and the wheel safety performance deviates from the set value, the remote monitoring unit returns an early warning signal to the central control MCU in the vehicle through the Internet and the 4G wireless remote communication module, and then transmits the early warning signal to the signal display alarm module in the vehicle to send early warning to a driver.
3. A self-generating motor vehicle wheel condition monitoring system as defined in claim 2, wherein: the three-dimensional acceleration parameters of the wheel comprise: tangential acceleration, lateral acceleration and centripetal acceleration of the wheel.
4. A self-generating motor vehicle wheel condition monitoring system as defined in claim 2, wherein: the three-dimensional angular velocity parameters of the wheel include: wheel side inclination speed, rotation angular speed, and heading angular speed.
5. A self-generating motor vehicle wheel condition monitoring system as defined in claim 2, wherein: the wheel motion attitude parameters include: wheel roll angle, wheel rotation angle, wheel heading angle, wheel vertical acceleration, wheel three-dimensional acceleration, and wheel three-dimensional angular velocity.
6. A self-generating motor vehicle wheel condition monitoring system as defined in claim 2, wherein: the wheel braking parameters include: the degree of inequality in the balance of the wheel braking deceleration and the left and right wheel braking decelerations.
7. A self-generating motor vehicle wheel condition monitoring system as defined in claim 1, wherein: the permanent magnet magnetic shaft adopts an eccentric structure, naturally faces downwards under the action of gravity, and does not do circular motion along with the wheels.
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| CN110696569A (en) * | 2019-10-24 | 2020-01-17 | 四川新马高科技有限公司 | Vehicle wheel hub temperature detection equipment and monitoring system |
| CN112706567A (en) * | 2021-01-28 | 2021-04-27 | 招商局公路信息技术（重庆）有限公司 | Novel wireless tire pressure monitoring system |
| GB2623795A (en) * | 2022-10-27 | 2024-05-01 | Airbus Operations Ltd | A tire monitoring device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429232A (en) * | 1982-05-24 | 1984-01-31 | Thomas Stephen E | Apparatus for generating electricity within a pneumatic wheel assembly |
| KR20030080569A (en) * | 2002-04-09 | 2003-10-17 | (주)델텍 | Tire monitor system of a vehicle |
| KR20090098778A (en) * | 2009-08-29 | 2009-09-17 | 장건영 | Generating device using bicycle wheels |
| CN201466812U (en) * | 2009-08-25 | 2010-05-12 | 中国人民解放军军事交通学院 | Horizontal axial rotating part electronic power supply device |
| JP2011229309A (en) * | 2010-04-21 | 2011-11-10 | Bridgestone Corp | Power generator in tire |
| JP2014073799A (en) * | 2012-10-05 | 2014-04-24 | Tokai Rika Co Ltd | Wheel position decision unit and tire air pressure monitoring system |
| CN205951625U (en) * | 2016-07-05 | 2017-02-15 | 济南卡路安电子科技有限公司 | Vehicle detecting system |
| CN107310336A (en) * | 2017-05-02 | 2017-11-03 | 广西大学 | A kind of vehicle tire pressure remote supervision system |
| CN109203877A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The information classification processing method and system of tire networking |
| CN210174553U (en) * | 2019-06-12 | 2020-03-24 | 广东工贸职业技术学院 | Self-generating motor vehicle wheel state monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10723182B2 (en) * | 2016-04-25 | 2020-07-28 | Itire, Llc | Wheel hub mounted vehicle data communications device incorporating a self-generating electrical power supply |
-
2019
- 2019-06-12 CN CN201910505952.1A patent/CN110203023B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429232A (en) * | 1982-05-24 | 1984-01-31 | Thomas Stephen E | Apparatus for generating electricity within a pneumatic wheel assembly |
| KR20030080569A (en) * | 2002-04-09 | 2003-10-17 | (주)델텍 | Tire monitor system of a vehicle |
| CN201466812U (en) * | 2009-08-25 | 2010-05-12 | 中国人民解放军军事交通学院 | Horizontal axial rotating part electronic power supply device |
| KR20090098778A (en) * | 2009-08-29 | 2009-09-17 | 장건영 | Generating device using bicycle wheels |
| JP2011229309A (en) * | 2010-04-21 | 2011-11-10 | Bridgestone Corp | Power generator in tire |
| JP2014073799A (en) * | 2012-10-05 | 2014-04-24 | Tokai Rika Co Ltd | Wheel position decision unit and tire air pressure monitoring system |
| CN205951625U (en) * | 2016-07-05 | 2017-02-15 | 济南卡路安电子科技有限公司 | Vehicle detecting system |
| CN107310336A (en) * | 2017-05-02 | 2017-11-03 | 广西大学 | A kind of vehicle tire pressure remote supervision system |
| CN109203877A (en) * | 2017-07-07 | 2019-01-15 | 杭州中策车空间汽车服务有限公司 | The information classification processing method and system of tire networking |
| CN210174553U (en) * | 2019-06-12 | 2020-03-24 | 广东工贸职业技术学院 | Self-generating motor vehicle wheel state monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 电磁制动在汽车制动能量回收中应用分析;涂琨;何仁;;机械传动(05);第151-155页 * |
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