KR20170043048A - Apparatus and method for monitoring condition of vehicle tires - Google Patents

Apparatus and method for monitoring condition of vehicle tires Download PDF

Info

Publication number
KR20170043048A
KR20170043048A KR1020150142412A KR20150142412A KR20170043048A KR 20170043048 A KR20170043048 A KR 20170043048A KR 1020150142412 A KR1020150142412 A KR 1020150142412A KR 20150142412 A KR20150142412 A KR 20150142412A KR 20170043048 A KR20170043048 A KR 20170043048A
Authority
KR
South Korea
Prior art keywords
vehicle
tire
sound wave
information
sensor
Prior art date
Application number
KR1020150142412A
Other languages
Korean (ko)
Inventor
사성진
오광명
박성민
이희승
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020150142412A priority Critical patent/KR20170043048A/en
Publication of KR20170043048A publication Critical patent/KR20170043048A/en

Links

Images

Classifications

    • 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
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • 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
    • B60C23/0469—Transmission by sound, e.g. ultra-sound
    • 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
    • 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
    • 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
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/061—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel speed
    • 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
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/08—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by touching the ground
    • 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
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/08—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by touching the ground
    • B60C23/085—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by touching the ground putting directly into action an audible signal
    • 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
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C2019/006—Warning devices, e.g. devices generating noise due to flat or worn tyres

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The present invention relates to an apparatus and a method for monitoring a condition of a vehicle tire, wherein the apparatus comprises: a sensor unit mounted inside and outside a vehicle to measure environment information and vehicle information; a sound wave sensor measuring a sound wave signal generated by road friction with a tire when driving the vehicle; a control unit checking whether a tire state measuring condition based on the environment information and the vehicle information, and controlling the sound wave sensor in accordance with the checking result; and a treatment unit analyzing the sound signal measured by the sound wave sensor in accordance with control of the control unit to diagnose whether a tire is inspected.

Description

[0001] APPARATUS AND METHOD FOR MONITORING CONDITION OF VEHICLE TIRES [0002]

The present invention relates to an apparatus and method for monitoring a state of a vehicle tire, and more particularly to an apparatus and method for monitoring a state of a tire using a sound wave sensor in real time.

The vehicle's tires transmit the driving force and the braking force of the vehicle to the road surface while supporting the load of the vehicle, so as to mitigate the impact received from the road surface, and to switch and maintain the traveling direction of the vehicle.

The wheel alignment, which affects such tire wear, has geometric angles for coordination stability and good ride quality, which means wheel alignment along geometric angles.

The wrong setting of the wheel alignment causes the road and tire friction in the transverse direction of the vehicle when driving in a straight line, resulting in the noise of the skill and the vibration of the car or the handle, thereby generating tire wear. Further, the straightness of the vehicle is lowered.

Wheel Alignment and Tire condition changes cause noise and body vibration due to the general rolling friction of tires and road surface, load caused by external side friction, abnormal tire and road surface ground pattern change.

KR 200324989 Y1 KR 101091032 B1 KR 1020030038666 A

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a vehicle tire condition monitoring Apparatus, and method.

In addition, the present invention measures an acoustic signal generated by friction between a vehicle wheel and a road surface using a sound sensor and analyzes the measured sound signal to diagnose wheel alignment and abnormality of the tire condition, The present invention provides a vehicle tire condition monitoring apparatus and method that informs a driver of whether or not an inspection is required.

In order to solve the above problems, an apparatus for monitoring a condition of a vehicle according to an embodiment of the present invention includes a sensor unit for measuring environmental information and vehicle information mounted inside and outside a vehicle, A controller for checking whether the tire condition measurement condition is satisfied based on the environment information and the vehicle information and for controlling the operation of the sound wave sensor according to a result of the confirmation; And a processor for analyzing the sound wave signal measured by the sound wave sensor to diagnose whether or not tire inspection is required.

In addition, the environmental information includes temperature and humidity information.

In addition, the vehicle information includes information such as the position, speed, acceleration, and steering angle of the vehicle.

The sound wave sensor may be a piezo sensor, an acceleration sensor, or a microphone.

Further, the sound wave sensor is mounted inside the wheel house or the tire.

In addition, the processing unit may compare the environmental information, the vehicle information, and the sound wave signal with pre-stored reference information to determine whether or not to check the tire.

Further, the vehicle tire condition monitoring apparatus may further include a display unit for indicating whether or not the tire is diagnosed by the processing unit.

According to another aspect of the present invention, there is provided a vehicle tire condition monitoring method including the steps of: collecting environment information and vehicle information measured by various sensors mounted on a vehicle; Determining whether the tire condition is satisfied, measuring a sound wave signal generated by friction between the tire and the road surface by operating the sound wave sensor when the tire condition measurement condition is satisfied, and diagnosing whether the tire is required to be inspected by analyzing the sound wave signal The method comprising the steps of:

The present invention monitors the tire condition in real time using a sound wave sensor to diagnose whether or not tire inspection is necessary and informs the user of the diagnosis result. Therefore, the user (the car owner) can perform tire replacement, wheel alignment inspection You can reduce the hassle of visiting a service center to check your tires.

In addition, the present invention provides convenience for a user who does not have a lot of knowledge about the vehicle, and can exert effects such as driving stability, fuel consumption and noise suppression of the vehicle.

1 is a block diagram showing a vehicle tire condition monitoring apparatus according to an embodiment of the present invention;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a flow chart illustrating a vehicle tire condition monitoring method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention monitors wheel alignment and tire condition of a vehicle by using side rubs and noise and vibration caused by a tire ground pattern change due to changes in tire condition (degree of wear, air pressure, etc.).

1 is a block diagram showing a vehicle tire condition monitoring apparatus according to an embodiment of the present invention.

1, the vehicle tire condition monitoring apparatus includes an environment sensor 110, a vehicle sensor 120, a sound sensor 130, a communication unit 140, a control unit 150, a processing unit 160, a storage unit (not shown) 170, and a display unit 180.

The environmental sensor 110 and the vehicle sensor 120 are mounted inside and outside the vehicle to measure various data.

The environmental sensor 110 measures environmental information inside and outside the vehicle. Here, the environmental information includes temperature information, humidity information, and the like. That is, the environmental sensor 110 may include a temperature sensor, a humidity sensor, and the like.

The vehicle sensor 120 measures vehicle information such as the position, speed, acceleration, and steering angle of the vehicle. The vehicle sensor 120 includes a Global Positioning System (GPS) receiving module, a speed sensor and a steering angle sensor, and an acceleration sensor.

The sound wave sensor 130 measures the sound wave signals (noise and vibration) generated by the friction between the tire and the road surface mounted in the wheel house or the tire of the vehicle. The sound wave sensor 130 is mounted on each wheel.

The sound wave sensor 130 may be implemented as any one of a piezo sensor, an acceleration sensor, and a microphone.

The communication unit 140 includes at least one communication module that enables wired communication and wireless communication between the sensors 110 to 130 and the control unit 150. [

The communication unit 140 uses an in-vehicle network (IVN) technology such as a CAN (Controller Area Network), a MOST (Media Oriented Systems Transport) network or a LIN (Local Interconnect Network), Flexray,

The communication unit 140 may use a wireless communication technology such as Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), or ZigBee.

The control unit 150 checks whether the tire condition measurement condition is satisfied based on the sensor data measured through the environment sensor 110 and the vehicle sensor 120 mounted on the vehicle. The control unit 150 operates the sound wave sensor 130 to measure the sound wave signal and transmits the measured sound wave signal to the processing unit 160 when the tire condition measurement condition is satisfied.

The processing unit 160 compares and analyzes environmental information, vehicle information, noise and vibration measurement information (sound wave signals) with reference information, and finds and classifies differences. The processor 160 diagnoses whether or not a tire check (wheel alignment and tire condition, etc.) is required according to the classified data (difference). Here, the reference information means initial state information after the tire check.

The processing unit 160 analyzes the data measured by the sound wave sensor 130 in terms of time (eg, time analysis, frequency analysis, and spectrum analysis), and stores the analysis results in the storage unit 170.

The storage unit 170 stores initial state data (information) after the tire check. Also, the storage unit 170 may store data generated according to the operation of the vehicle tire condition monitoring apparatus.

The storage unit 170 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) A storage medium such as a random access memory (RAM), a static random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read only memory (EEPROM), or the like.

The display unit 180 displays information on the necessity of checking determined by the processing unit 160. The display unit 180 may be a cluster, a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) , A flexible display, a 3D display, a transparent display, a head-up display (HUD), and a touch screen.

However, the present invention is not limited to this, and it is possible to output the information as auditory information using a sound output device such as a speaker, So that the visual information and the auditory information are output.

2 is a flowchart illustrating a method of storing tire initial state information of a vehicle tire condition monitoring apparatus according to an embodiment of the present invention. The present embodiment describes a process of storing initial state information after a tire check of a vehicle. Here, the initial state information is used as a reference in wheel alignment and tire condition check.

First, the control unit 150 measures and collects environment information and vehicle information through the environment sensor 110 and the vehicle sensor 120 (S110). At this time, the control unit 150 receives measurement data transmitted from the environment sensor 110 and the vehicle sensor 120 through the communication unit 140. The environmental information includes temperature and humidity information, and the vehicle information includes information such as the position, speed, acceleration, and steering angle of the vehicle.

The control unit 150 determines whether the tire condition measurement condition is satisfied based on the data measured by the environment sensor 110 and the vehicle sensor 120 (S120). For example, the control unit 150 determines that the tire condition measurement condition is satisfied when the temperature exceeds the threshold value.

The control unit 150 measures noise and vibration signals (sound wave signals) through the sound sensor 130 when the tire condition measurement condition is satisfied (S130).

The control unit 150 controls the processing unit 160 to analyze noise and vibration signals (S140).

The control unit 150 stores the analyzed result by the processing unit 160 as wheel-specific reference information (S150). At this time, the control unit 150 stores the wheel-specific reference information corresponding to the environment information and the vehicle information, respectively. For example, the control unit 150 outputs environment information when measuring a sound wave signal through the sound wave sensor 130 and results (wheel alignment information and tire state information) resulting from analysis of the sound wave signals measured in correspondence with the vehicle information, In the storage unit 170 as shown in FIG.

3 is a flowchart illustrating a vehicle tire condition monitoring method according to an embodiment of the present invention.

Referring to FIG. 3, the controller 150 collects environment information and vehicle information measured in real time through the environment sensor 110 and the vehicle sensor 120 (S210).

The control unit 150 determines whether the tire condition measurement condition is satisfied based on the data measured by the environment sensor 110 and the vehicle sensor 120 (S220).

If the condition of the tire condition is satisfied, the control unit 150 measures the noise and vibration signal (sound wave signal) through the sound wave sensor 130 (S230).

The control unit 150 controls the processing unit 160 to analyze noise and vibration signals (S240). The control unit 150 compares and analyzes the environment information and the sound information measured by the sound sensor 130 with the vehicle information and the reference information stored in the storage unit 170 to diagnose whether or not the tire should be checked. In other words, the control unit 150 compares the currently measured sound wave signal with the sound wave signal initially measured after the tire check in the same environment and vehicle conditions.

The control unit 150 notifies the user of the necessity of tire inspection based on the analysis result (S250). That is, the control unit 150 outputs information on whether or not the tire is required to be checked to the display unit 180.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

110: Environmental sensor
120: vehicle sensor
130: Sound wave sensor
140:
150:
160:
170:
180: Output section

Claims (8)

A sensor unit mounted inside or outside the vehicle for measuring environmental information and vehicle information,
A sound wave sensor for measuring a sound wave signal generated by friction between the tire and the road surface during traveling of the vehicle,
A controller for checking whether the tire condition measurement condition is satisfied based on the environment information and the vehicle information, and controlling the operation of the sound wave sensor according to the confirmation result;
And a processor for analyzing a sound wave signal measured by the sound wave sensor under the control of the controller to diagnose whether or not the tire is required to be inspected.
The method according to claim 1,
The environmental information includes,
Temperature and humidity information of the vehicle.
The method according to claim 1,
The vehicle information includes:
And information such as a position, a speed, an acceleration, and a steering angle of the vehicle.
The method according to claim 1,
The sound wave sensor includes:
A sensor, an acceleration sensor, and a microphone.
The method according to claim 1,
The sound wave sensor includes:
Wherein the vehicle is mounted inside a wheel house or a tire.
The method according to claim 1,
Wherein,
And comparing the environment information, the vehicle information, and the sound wave signal with pre-stored reference information to determine whether or not to check the tire.
The method according to claim 1,
Further comprising: a display unit for displaying whether or not the tire is diagnosed by the processing unit.
Collecting environment information and vehicle information measured by various sensors mounted on the vehicle,
Confirming whether the tire condition measurement condition is satisfied based on the environment information and the vehicle information;
Measuring a sound wave signal generated by friction between the tire and the road surface by operating the sound wave sensor when the tire condition measurement condition is satisfied;
And analyzing the sound wave signal to diagnose whether or not tire inspection is required.
KR1020150142412A 2015-10-12 2015-10-12 Apparatus and method for monitoring condition of vehicle tires KR20170043048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150142412A KR20170043048A (en) 2015-10-12 2015-10-12 Apparatus and method for monitoring condition of vehicle tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150142412A KR20170043048A (en) 2015-10-12 2015-10-12 Apparatus and method for monitoring condition of vehicle tires

Publications (1)

Publication Number Publication Date
KR20170043048A true KR20170043048A (en) 2017-04-20

Family

ID=58705632

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150142412A KR20170043048A (en) 2015-10-12 2015-10-12 Apparatus and method for monitoring condition of vehicle tires

Country Status (1)

Country Link
KR (1) KR20170043048A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230008398A (en) * 2021-07-07 2023-01-16 넥센타이어 주식회사 Tire monitoring system and method for monitoring tire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230008398A (en) * 2021-07-07 2023-01-16 넥센타이어 주식회사 Tire monitoring system and method for monitoring tire

Similar Documents

Publication Publication Date Title
CN107490488B (en) Vehicle health check via noise and vibration levels
US10830908B2 (en) Applying motion sensor data to wheel imbalance detection, tire pressure monitoring, and/or tread depth measurement
CN109808428B (en) System and method for vehicle tire pressure monitoring system location
CN109472885B (en) Tire safety management method and device, tire safety management equipment and automobile
US9636956B2 (en) Wheel diagnostic monitoring
US20160167446A1 (en) Tire service life monitoring
EP2777957A2 (en) Predictive peer-based tire health monitoring
RU2693366C1 (en) Method of monitoring tires of vehicles through personal networks and a corresponding vehicle
US20180290501A1 (en) Methods and apparatus for determining remaining life of a tire based on road vibration data and tire tread groove depth
US20190322284A1 (en) Apparatus and method for lean inspection of vehicle
CN110733571B (en) Device and method for determining driver distraction based on jerk and vehicle system
US20150149020A1 (en) Method and apparatus for monitoring use of mobile communications in a vehicle
CN108556568A (en) vehicle tyre detection device
CN109421631A (en) Vehicular wiper scraping blade monitoring based on accelerometer
KR20190053151A (en) System and method for road irregularity and damage detection using road surface flatness vibration sensing terminal
US7973650B2 (en) Motor vehicle tire pressure monitoring system and diagnosis method using this system
KR20160063906A (en) Method for analysis state of vehicle, apparatus for collecting vehicle information and smart device
CN110456759A (en) Diagnostic device, diagnostic system and diagnostic method
CN109215172A (en) Detection method, device and the readable storage medium storing program for executing of vehicle-state
KR20170043048A (en) Apparatus and method for monitoring condition of vehicle tires
US11574469B2 (en) Compute system with wear detection mechanism and method of operation thereof
US20110238263A1 (en) Preventing condensation on the surface of moving vehicles
US10933705B2 (en) Apparatus and method for monitoring tire pressure of vehicle
JP4286721B2 (en) Vehicle diagnosis information acquisition device and vehicle diagnosis information acquisition method
JP6533524B2 (en) Method for checking the mounting position of an axle modulator based on disturbances in speed signal, brake system and vehicle using the method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application