KR100527454B1 - Terminal be united on-board diagnostic connector - Google Patents

Abstract

The present invention relates to a self-diagnosis system of a vehicle, and more particularly, to a vehicle information providing terminal of a self-diagnosis connector type in which a self-diagnosis connector is integrated. The vehicle information providing terminal includes an interface unit coupled to the vehicle side self-diagnosis connector and transmitting and receiving data to and from the vehicle electronic control devices; A power supply unit adjusting and supplying power supplied from the interface unit to operation power; A control unit for communicating with electronic control devices in the vehicle through the interface unit to obtain self-diagnostic information, and to control management and transmission of the obtained information; And a wireless communication unit for wirelessly transmitting the self-diagnosis information to an information output terminal or wirelessly receiving a self-diagnosis command from the information output terminal and interfacing to the control unit.

Description

Vehicle information provision terminal with integrated self-diagnosis connector {TERMINAL BE UNITED ON-BOARD DIAGNOSTIC CONNECTOR}

The present invention relates to a self-diagnosis system of a vehicle, and more particularly, to a vehicle information providing terminal of a self-diagnosis connector type in which a self-diagnosis connector is integrated.

Telematics is a compound word of telecommunication and informatics, which refers to a new concept of vehicle wireless Internet service combining automobiles and wireless communication. Such telematics service is generally a joint venture between a car maker and a mobile carrier.

As telematics service is expanded, telematics terminals with various functions are commercially available, and these terminals acquire various vehicle information through electronic self-control device (for example, engine controller, etc.) and "self-diagnosis communication" and use it as basic contents. Providing.

However, in order to implement "self-diagnosis communication" for the purpose of obtaining vehicle information,

(1) Development of the terminal-side "self-diagnosis connector" or modification of the wiring harness of the vehicle is required.

(2) The development of "self-diagnosis communication protocol" for self-diagnosis communication with vehicle is required.

In the former case, since the "self-diagnosis connector" is a connector that can be used only in a vehicle, its use is extremely limited compared to the investment and development time invested.

 In addition, the "self-diagnosis communication protocol" has a problem in that it takes a lot of time and money to develop a telematics terminal for accommodating the protocol and the parameters are different according to the manufacturer and the model of the vehicle.

Therefore, an object of the present invention was devised to solve the above-mentioned problems, and the self-diagnosis result obtained from the in-vehicle electronic control apparatus is interfaced to the in-vehicle information output terminal, but a connector coupled with the self-diagnosis connector of the vehicle is integrated. It is to provide a vehicle information providing terminal.

Furthermore, another object of the present invention is to provide a self-diagnosis connector-integrated vehicle information providing terminal capable of processing the self-diagnosis information obtained through the integrated self-diagnosis connector and various vehicle operation-related information to interface to the information output terminal. have.

Vehicle information providing terminal according to an embodiment of the present invention for achieving the above object,

An interface unit coupled to the vehicle side self-diagnosis connector and transmitting and receiving data to and from the vehicle electronic control devices;

A power supply unit adjusting and supplying power supplied from the interface unit to operation power;

A control unit for communicating with electronic control devices in the vehicle through the interface unit to obtain self-diagnostic information, and to control management and transmission of the obtained information;

And a wireless communication unit for wirelessly transmitting the self-diagnosis information to an information output terminal or wirelessly receiving a self-diagnosis command from the information output terminal and interfacing to the control unit.

Therefore, the vehicle information providing terminal according to the embodiment of the present invention wirelessly transmits the self-diagnosis result obtained from the in-vehicle electronic control apparatus to the in-vehicle information output terminal. As a result, the information output terminal such as a telematics terminal has a self-diagnosis connector or It is possible to receive and process the self-diagnosis result without providing an interface unit such as a cable connection connector.

The terminal further includes a wired communication unit for transmitting the self-diagnosis information to an information output terminal such as a telematics terminal, receiving a self-diagnosis command from the information output terminal, and interfacing to the control unit.

According to this embodiment of the present invention, the telematics terminal is provided with the self-diagnosis information of the vehicle through a wired communication unit such as RS-232C already formed in the terminal without a separate interface unit for connecting with the self-diagnosis connector located in the vehicle. Can receive and process.

Therefore, the telematics terminal manufacturer can enjoy the effect of saving the cost and time due to the development of the self-diagnosis connector and the self-diagnosis communication protocol by supplying the vehicle information providing terminal as described above.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

First, FIG. 1 illustrates a peripheral configuration diagram of a self-diagnosis connector integrated vehicle information providing terminal according to an embodiment of the present invention. As shown in FIG. 1, the self-diagnostic connector integrated vehicle information providing terminal 200 according to the embodiment of the present invention is directly coupled to the self-diagnostic connector of the vehicle to perform data communication with the in-vehicle electronic control apparatus 300. The telematics terminal 100 transmits and receives short-range wireless data.

That is, the self-diagnosis connector integrated vehicle information providing terminal 200 wirelessly receives a self-diagnosis command from the telematics terminal 100 and transmits the self-diagnosis command to the in-vehicle electronic control apparatus 300 through the self-diagnostic connector, which will be described later. It modulates and transmits the self-diagnosis information transmitted from the 300 into a radio signal. The vehicle information providing terminal 200 may wirelessly transmit one of vehicle information, driving record information, accident record information, and driving tendency analysis information as vehicle driving information according to a user command wirelessly received through the telematics terminal 100. . In addition, the vehicle information providing terminal 200 may transmit the vehicle driving information obtained in real time to the telematics terminal 100 independently. For example, when the engine overheating condition exceeds the threshold, the vehicle driver may be automatically notified of the engine overheating condition.

Meanwhile, the in-vehicle electronic controller 300 refers to an electronic control unit (ECU) such as an engine controller, a shift controller, a suspension controller, and a brake controller of the vehicle. The electronic controller 300 controls the vehicle. In addition to the function, it stores or outputs the state of the vehicle detected during operation as part of self-diagnosis information or vehicle operation information.

The telematics terminal 100 generates a message according to a user command and wirelessly transmits the message, and receives the information corresponding to the user command from the vehicle information providing terminal 200 and outputs the received information wirelessly through the display unit. Therefore, the telematics terminal 100 may be referred to as an information output terminal. Examples of such information output terminals include CDMA terminals, PCS terminals, PDAs, and the like. In the embodiment of the present invention, it is assumed that the telematics terminal 100 as the information output terminal.

For reference, the telematics terminal 100 may transmit / receive data with the self-diagnostic connector integrated vehicle information providing terminal 200 through RS-232C and USB.

FIG. 2 is a perspective view illustrating an exterior of a vehicle diagnostic information integrated terminal including a self-diagnostic connector in FIG. 1, and FIG. 3 is a vehicle information provision terminal integrated with a self-diagnostic connector according to an embodiment of the present invention. The figure for showing the state mounted on the diagnostic connector 310 is shown.

The self-diagnostic connector integrated vehicle information providing terminal 200 according to an embodiment of the present invention is supplied with power from a battery in a vehicle, and pins are provided at one side for exchanging data with the electronic control apparatus 300 in the vehicle. . These pins have a structure that can be coupled to the self-diagnosis connector 310 located in the vehicle as shown in FIG. The pins are referred to as self-diagnostic connector I / F unit 240 in the block diagram to be described later.

Hereinafter, the configuration of the self-diagnosis integrated vehicle information providing terminal 200 will be described. First, FIG. 4 is a block diagram of the self-diagnosis connector integrated vehicle information providing terminal 200 according to an exemplary embodiment of the present invention.

In FIG. 4, the sensor unit 210 may include an acceleration sensor and a gyro sensor to sense not only the acceleration of the vehicle but also the steering angle. By using the vehicle acceleration information and the steering angle information output from the sensor unit 210, it is possible to know the vehicle's accident judgment, the impact amount before and after the accident, the steering angle, and the like.

The memory 220 is a concept including a RAM and a flash memory. The memory 220 stores information obtained through the in-vehicle electronic control apparatus 300 and the sensor unit 210 as well as the overall operation of the vehicle information providing terminal 200. It stores the control program data for controlling.

The power supply unit 230 adjusts and supplies the power supplied from the self-diagnosis connector I / F unit 240 to be described later to operating power (for example, 5V and 3.3V).

The self-diagnostic connector interface unit 240 is a connector including a plurality of pins that are mechanically coupled to the self-diagnostic connector 310 located in the vehicle or the engine room, and the vehicle information providing terminal 200 according to the embodiment of the present invention. ) Is integrated. The self-diagnostic connector I / F unit 240 is coupled to the vehicle-side self-diagnosis connector 310 and transmits and receives data with electronic control devices in the vehicle.

The MCU 250, which is a controller, controls the overall operation of the terminal 200 based on the control program data stored in the memory 220. For example, when the MCU 250 receives a self-diagnosis command through the telematics terminal 100, the MCU 250 communicates with electronic control devices in the vehicle through the interface unit 240 to obtain self-diagnosis information. Control the management and transmission of information. In addition, by determining the amount of impact by integrating the vehicle acceleration information obtained through the sensor unit 210 to determine whether the accident of the vehicle, and if it is determined that the accident is sent to the information output terminal and at the same time the accident information to the memory It also plays a role of storing.

On the other hand, RTC (Real Time Clock) 260 serves to provide real-time time information to the MCU 250, the voice output unit 270 under the control of the MCU 250, vehicle operation information and self-diagnostic information It plays the role of outputting voice. The voice output unit 270 is a concept including a voice synthesis chip.

The data input / output unit 280, as a user interface unit, provides a path for outputting data for lighting an LED for instructing the operation state of the terminal to the outside, as well as inputting key data according to key presses to the MCU 250. It provides a path.

The communication unit 290 includes a wired communication unit and a wireless communication unit. The wireless communication unit wirelessly transmits the self-diagnosis information of the vehicle managed by the MCU 250 to the telematics terminal 100, or wirelessly receives various user commands including the self-diagnosis command from the telematics terminal 100 so that the MCU ( 250). An example of such a wireless communication unit is a Bluetooth module capable of transmitting and receiving short-range wireless data. As the vehicle information providing terminal 200 according to the embodiment of the present invention mounts a Bluetooth module, the telematics terminal 100 should also be equipped with a Bluetooth module.

The wired communication unit includes RS-232 and USB, and USB is used to download data from a PC or upload data to a PC, and RS-232 transmits self-diagnosis information and vehicle operation information to the telematics terminal 100. Can be used.

Hereinafter, an operation of the vehicle information providing terminal 200 having the above-described configuration will be described in detail with reference to FIG. 5. In the following description, descriptions of well-known technologies such as connection settings between Bluetooth modules will be omitted.

① Self diagnosis

First, FIG. 5 illustrates an operation flowchart of the self-diagnosis connector integrated vehicle information providing terminal 200 according to an embodiment of the present invention, and more specifically, illustrates an operation flow when a self-diagnosis command is received.

First, it is assumed that the vehicle information providing terminal 200 according to the embodiment of the present invention is coupled to the self-diagnosis connector 310 located in the vehicle. Under this assumption, if the telematics terminal 100 in which the Bluetooth module is mounted is located within the communication radius, the Bluetooth modules of both terminals 100 and 200 are connected by a general method.

When the user issues a self-diagnosis command of the vehicle through the telematics terminal 100 in the connection setting state as described above, the self-diagnosis command is converted into a signal conforming to the Bluetooth standard by the Bluetooth module mounted in the telematics terminal 100 and wirelessly transmitted. . The self-diagnostic command transmitted as described above is restored to the original signal by the communication unit 290 of the vehicle information providing terminal 200 located within the communication radius and applied to the MCU 250.

Accordingly, the MCU 250 may recognize that the self-diagnosis command has been transmitted from the telematics terminal side 100. If it is recognized in step 400 that the self-diagnosis command has been transmitted, the MCU 250 generates a self-diagnosis message that can be recognized by the in-vehicle electronic control apparatus 300 and generates the self-diagnosis connector I / F unit ( 240, and transmits 410. Accordingly, the in-vehicle electronic control apparatus 300 is to receive the self-diagnosis request.

Meanwhile, when the self-diagnosis request is transmitted through the vehicle information providing terminal 200, the electronic control apparatus 300 accesses the self-diagnosis information for each part stored in the memory means and follows the vehicle information according to the K-line or CAN communication method. It transmits to the providing terminal 200. In the exemplary embodiment of the present invention, the self-diagnosis information stored in the memory is transmitted in response to the self-diagnosis request. However, when the self-diagnosis request is performed, the self-diagnosis is performed on each part of the vehicle, and the result and the current data are transmitted. You may assume that you do.

As described above, when the self-diagnosis information is received from the in-vehicle electronic control apparatus 300 (step 420), the MCU 250 applies the received self-diagnosis information to the communication unit 290 so that the self-diagnosis information conforms to the Bluetooth standard. The RF signal is converted into a wireless signal and transmitted in step 430. And the self-diagnostic information is restored to the original signal from the Bluetooth module of the telematics terminal 100, the user can be notified of the self-diagnostic information through the display of the telematics terminal 100.

In the above description, the self-diagnosis information obtained from the in-vehicle electronic control apparatus 300 is transmitted to the telematics terminal 100 and output. However, the MCU 250 of the vehicle-information providing terminal 200 stores the self-diagnosis information in the memory 220. By comparing the pre-stored pattern with the result and outputting the result to the voice output unit 270, the self-diagnosis result sound output from the voice output unit 270 may be directly transmitted to the vehicle driver.

According to the self-diagnostic operation as described above, the vehicle information providing terminal 200 transmits the self-diagnosis result obtained from the in-vehicle electronic control apparatus 300 to the telematics terminal 100 to wirelessly transmit the telematics terminal 100. The same information output terminal can receive and process the self-diagnosis result without providing an interface unit such as a self-diagnosis connector or a cable connection connector.

On the other hand, the vehicle information providing terminal 200 according to an embodiment of the present invention, in addition to the above-described self-diagnosis information, ② vehicle information, ③ driving record information, ④ accident notification and accident record information, ⑤ driving propensity analysis information, and the like as vehicle driving information. Can provide. In addition, it can provide additional relay function for reprogramming the software of in-vehicle electronic control devices.

Hereinafter, vehicle driving information generated or accessed by the MCU 250 will be described in more detail.

② Vehicle Information.

The MCU 250 may obtain information (state) of the vehicle in real time and notify the telematics terminal 100 through the wired / wireless communication unit 290. Such vehicle information may include, for example, engine idle time, engine temperature, battery voltage, fuel economy, and remaining travel distance. The vehicle information is information (some of processed data) that can be obtained in real time through communication with the in-vehicle electronic control device 300.

③ driving record information.

In addition, the MCU 250 may obtain driving record information such as a traveling speed, a traveling distance, and a traveling time of the vehicle through the in-vehicle electronic control device 300 and transmit the wired or wirelessly to the telematics terminal 100.

④ Incident notification and accident record information.

The MCU 250 may determine whether an accident has occurred through the acceleration sensor. In other words, if the impact amount obtained by integrating the acceleration value obtained from the acceleration sensor has a value greater than or equal to the threshold value, it is judged as an accident, and the accident is notified to the telematics terminal immediately, and the accident record is recorded on the vehicle speed, steering angle, impact amount, etc. before and after the recognition point of the accident. The information may be recorded in the memory 220 and later transmitted to the telematics terminal 100 according to a user's request.

⑤ Analysis of driving tendency

In addition, the MCU 250 may analyze the driver's driving tendency by using the acceleration of the sensor unit 210 and the value output from the gyro sensor, and transmit the same to the telematics terminal 100 upon user request. The driving tendency analysis information includes information such as rapid acceleration, sudden deceleration, rapid steering, and overspeed.

⑥ Software Reprogramming (ECU) Software

In addition, when the MCU 250 has a user request through the telematics terminal 100, the software of the electronic control apparatuses in the vehicle is wirelessly received and transmitted to the electronic control apparatus 300 in the vehicle, thereby providing the electronic control apparatus 300. You can also help them upgrade their software.

Although not described above, the MCU 250 may additionally support the function of the subsidiary unit. That is, the consumable replacement time according to the vehicle driving distance may be output by voice, and the exchange time may also be output through the telematics terminal 100. In addition, using the time value provided from the RTC 260 and information obtained through self-diagnostic communication (eg, engine RPM, vehicle speed, etc.) may be used to warn the driver for a long time, and may also warn the user of the danger of going to bed for a long time while the vehicle is started. have.

As described above, the present invention can provide convenience to a vehicle operator by providing vehicle information, driving record information, accident notification and accident record information, and driving tendency analysis information as vehicle driving information in addition to providing self-diagnosis information.

As described above, the present invention wirelessly transmits a self-diagnosis result obtained from an in-vehicle electronic control apparatus to an information output terminal such as a telematics terminal. As a result, an information output terminal such as a telematics terminal is connected to a self-diagnosis connector or a cable connection connector. It is possible to receive and process the self-diagnosis result without providing or supporting the same interface unit.

In addition, the present invention supports to receive the self-diagnosis information of the vehicle through a wired communication unit that is already provided in the information output terminal, such as a telematics terminal, the information output terminal manufacturers can improve the interface development cost and time for receiving the self-diagnosis information You can enjoy the savings.

In addition, the vehicle driver has an advantage of receiving various information such as vehicle information, driving record information, accident notification and accident record information, driving tendency analysis information, in addition to the self-diagnosis information through the terminal of the present invention.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. For example, in the exemplary embodiment of the present invention, the vehicle driving information is provided when there is a user request through the telematics terminal, but the vehicle driving information (eg, engine temperature, fuel remaining amount, etc.) obtained in real time is stored in advance. If the threshold is exceeded, it may be desirable to design and operate to automatically notify the vehicle driver of the condition. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

1 is a peripheral configuration example of a self-diagnosis connector integrated vehicle information providing terminal according to an embodiment of the present invention.

Figure 2 is a perspective view of the vehicle diagnostic terminal integrated vehicle information providing terminal of Figure 1;

Figure 3 is an illustration of the mounting state of the self-diagnosis connector integrated vehicle information providing terminal according to an embodiment of the present invention.

Figure 4 is a block diagram of a self-diagnosis connector integrated vehicle information providing terminal according to an embodiment of the present invention.

5 is an exemplary operation flow diagram of a vehicle diagnostic information terminal integrated with a self-diagnosis connector according to an embodiment of the present invention.

Claims (9)

In the self-diagnosis connector integrated vehicle information providing terminal, An interface unit coupled to the vehicle side self-diagnosis connector and transmitting and receiving data to and from the vehicle electronic control devices; A power supply unit adjusting and supplying power supplied from the interface unit to operation power; A control unit for communicating with electronic control devices in the vehicle through the interface unit to obtain self-diagnostic information, and to control management and transmission of the obtained information; And a wireless communication unit for wirelessly transmitting the self-diagnosis information to an information output terminal or wirelessly receiving a self-diagnosis command from the information output terminal and interfacing to the control unit. The method of claim 1, further comprising a wired communication unit for transmitting the self-diagnosis information to the information output terminal, receiving a self-diagnosis command from the information output terminal to interface to the control unit. Vehicle information providing terminal. In the self-diagnosis connector integrated vehicle information providing terminal, An interface unit coupled to the vehicle side self-diagnosis connector and transmitting and receiving data to and from the vehicle electronic control devices; A power supply unit adjusting and supplying power supplied from the interface unit to operation power; A control unit configured to communicate with electronic control devices in the vehicle through the interface unit to obtain self-diagnosis information and vehicle driving information, and to control management and transmission of the obtained information; And a wireless communication unit for selectively transmitting the self-diagnosis information and the vehicle driving information to an information output terminal or wirelessly receiving a user command from the information output terminal and interfacing to the control unit. Vehicle information providing terminal. 4. The self-diagnosis method of claim 3, further comprising: a wired communication unit configured to transmit the self-diagnosis information and the vehicle driving information to an information output terminal, receive a user command from the information output terminal, and interface the interface to the controller. Vehicle information providing terminal with a connector. The terminal of claim 3 or 4, further comprising an acceleration sensor and a gyro sensor for sensing vehicle acceleration and steering angle, respectively.  The vehicle information providing terminal with a self-diagnosis connector according to claim 5, further comprising a voice output unit for voice outputting vehicle driving information and self-diagnosis information. The terminal of claim 3, wherein the wireless communication unit is a Bluetooth module for short-range wireless data transmission and reception. The terminal of claim 3 or 4, wherein the controller wirelessly transmits vehicle information, driving record information, accident notification and accident record information, and driving tendency analysis information as vehicle driving information. . The terminal of claim 3 or 4, wherein the controller receives the software program data of the electronic controller to be updated from the information output terminal and interfaces with the electronic controller to zoom.