KR100812022B1 - Method of supply car information - Google Patents

Abstract

A vehicle information provision method is provided to enable a driver to solve trouble of a vehicle by diagnosing the operation state of main components of the vehicle by using an LCD(Liquid Crystal Display) instrument panel or an audio/video/navigation system and supplying detailed information to the driver. A vehicle information provision method comprises: a first process for initializing a vehicle information database stored in a memory, in a microcomputer if an ignition switch of a vehicle is turned on(S201,S209); a second process for operating an event driven process about devices and sensors installed in the vehicle, in the microcomputer to obtain the present state information of the vehicle(S211); and a third process for making a scheduler have access to the vehicle information database when data obtained through the event driven process is registered in the vehicle information database, and showing the normal or broken state of the devices and sensors through a monitor unit(S213).

Description

How to provide vehicle information {Method of supply car information}

1 is a block diagram of a vehicle information providing apparatus according to an embodiment of the present invention.

2 is an operation flowchart for providing vehicle information in the vehicle information providing apparatus of the present invention.

<Description of Major Symbols in Drawing>

21: Can Area Network

22: Serial communication unit 23: Flex Ray

24: conversion unit 25: micom (AVN micom)

26: screen portion 27: memory

The present invention relates to the provision of vehicle information, and in particular, by providing the driver with detailed vehicle information through the driver's LCD instrument panel or the AVN (Audio Video / Navigation) system, it is possible to accurately determine whether the vehicle is normal and respond quickly in case of failure. The present invention relates to a vehicle information providing method for safe and reliable driving and vehicle management.

In general, the instrument panel mounted behind the steering wheel in front of the driver's seat to provide the status information of the vehicle includes the speed, RPM, fuel level, cooling status, seat belt, door status, gear stage information, side brakes, direction, etc. Provides the driver with operational status, such as whether or not.

In the case of the instrument panel installed in front of the conventional driver's seat, as described above, only a limited information such as the seat belt, vehicle speed, RPM, fuel amount, cooling state, door state, etc. It is difficult for the driver to grasp when the workshop does not go through a close inspection.

Therefore, when the driver does not know the defect of the vehicle and continues to operate the vehicle and a vehicle breakdown occurs, the driver may feel uncomfortable.

In addition, in the related art, the occurrence of a failure in the internal device of the vehicle is difficult for the driver to grasp, and the driver who wants to know the state of the vehicle precisely is dissatisfied because it can be grasped through the inspection by visiting the repair shop.

Therefore, when the driver's instrument panel or audio / video / navigation system is used to diagnose the operation state of the main components of the vehicle and provide the detailed information to the driver, the driver can identify the defect of the vehicle. It will be able to drastically resolve the inconvenience caused and to operate the vehicle more safely.

The present invention is to solve the above problems, an object of the present invention can be applied to both a vehicle to which serial communication (Serial), a vehicle to which a CAN (Controller Area Network) communication is applied, and a vehicle to which a Flex Ray is applied. In addition, the present invention provides a vehicle information providing method for identifying a detailed state of a vehicle without visiting a repair shop because the controller and various sensor information of the vehicle are provided to the driver.

In addition, an object of the present invention is to provide a vehicle information providing method that can be optionally installed in the driver's instrument panel made of LCD, a separate vehicle information providing device having an LCD or an AVN system.

In addition, an object of the present invention is to control the vehicle's controller and various devices through the CAN (Controller Area Network) network, serial communication (Flex Ray), if the start-up is started through the screen or the instrument panel of the vehicle audio / video / navigation system The present invention provides a vehicle information providing method for receiving detailed vehicle information regarding a sensor and providing the same to a driver and requesting and identifying a state of a desired vehicle.

In addition, the present invention is a controller, such as EMS (Transmission Control Unit), TCU (Transmission Control Unit), airbag (Airbag) and engine rotation state, room temperature sensor, outside temperature, ignition switch, vehicle speed sensor, battery voltage, etc. It provides a vehicle information providing method that grasps information through a CAN (Controller Area Network) network, serial communication (Serial), and Flex Ray, and provides the information to the screen or instrument panel of the above-described audio / video / navigation system. have.

The method of the present invention for achieving the above object, the first process of initializing the vehicle information database stored in the memory in the microcomputer when the ignition switch of the vehicle, and from the microcomputer to the vehicle to obtain the current state information of the vehicle A second process of starting an event driving process for the mounted device and sensors; and registering the data obtained through the event driving process in the vehicle information database, a scheduler accesses the vehicle information database to display the device and the device through a screen unit. And a third step of showing a normal or failure result of the sensors.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

The present invention provides detailed information of a vehicle using an instrument panel of the vehicle or an AVN system. When the vehicle is started, the CAN (Controller Area Network) network can be used to determine the fuel economy, misfire state, and the state of various sensors in the vehicle. It is a vehicle information providing method that enables the driver to manage and operate the vehicle more safely and conveniently because it provides through the communication method such as serial communication, serial ray, and flex ray.

CAN (Controller Area Network), one of the network communication standards for vehicle electronic devices, is a communication device for quick information exchange and transfer between microcomputers installed in a vehicle, and can transmit and receive all necessary information to each controller. In addition, if information is needed, it is possible to respond by changing only the software without changing the hardware. CANs are divided into high-speed cans, which are mainly used for engine and transmission systems, and low-speed cans, which are used for body chassis systems. High-speed cans represent communication speeds of 125 kbps to 1 Mbps and low cans of 125 kbps or less.

In addition, LIN (Local Interconnect Network) is a slow communication standard of 20kbps or less and is mainly used for devices that require relatively fast response speed such as doors, mirrors, windows, wipers, and headlights.

Flex Ray is a next-generation protocol specification that facilitates communication between power systems such as engines of automobiles and electronic devices (ECUs) that control the chassis, such as brakes and steering systems, at high communication speeds of up to 10Mbps.

Most communication is a vehicle multimedia network communication standard that achieves a communication speed of up to 24.5Mbps, and is used in communication such as navigation, audio / video, speakers, auto PC, DMB, and telematics used in vehicles.

The present invention utilizes all the communication means used in the vehicle, such as CAN, LIN, FlexRay, serial communication, and most communication, to grasp the information of the controller and various sensors of the vehicle through the AVN system. To the driver or to the instrument cluster.

1 is a block diagram of a vehicle information providing apparatus according to an exemplary embodiment of the present invention.

The vehicle information providing apparatus of FIG. 1 includes a can network unit 21, a serial communication unit 22, a flexlay unit 23, a conversion unit 24, a microcomputer (AVN microcomputer) 25, a screen unit 26, and a memory. And (27).

The can network unit 21 communicates with the internal electronic units of the vehicle such as a transmission control unit (TCU) and an electronic control unit (ECU) that use the can in the vehicle to communicate current state information of the vehicle. to provide.

The can network unit 21 mainly handles data exchange between many control devices, sensors, and actuators of a vehicle, and is applied between vehicle management, chassis, and electronic devices. The serial communication unit 22 provides status information of a device using serial communication in a vehicle.

The fleece unit 23 communicates with the equipment to which the Flex Ray communication is applied in the vehicle to identify and provide status information.

The conversion unit 24 converts the state information data of the vehicle received from the can network unit 21, the serial communication unit 22, and the flash unit 23 described above into the microcomputer 25 or the AVN microcomputer 25 of the present invention. Provides the conversion so that it can be understood by.

The display unit 26 displays detailed vehicle information obtained from the can network unit 21, the serial communication unit 22, and the flex lay unit 23 of the vehicle described above, and the display unit 26 is used in the AVN system. It is possible to provide detailed information of the vehicle by using a separate LCD.

The memory 27 stores a vehicle information database, control software, and the like to store and provide vehicle data according to the control of the microcomputer 25.

According to the present invention, when the ignition switch of the vehicle is turned on and the vehicle is started, the microcomputer 25 uses the can network unit 21, the serial communication unit 22, and the flash unit 23. By requesting the status information, and analyzing the failure information of the received status information data of the vehicle and registering it in the vehicle information database and displaying it on the display unit 26 or the instrument panel 26, the driver can accurately and detail the current state of the vehicle. To be identified.

The microcomputer 25 receives the request for status information through the can network unit 21, the serial communication unit 22, and the play unit 23 as described above, controls the display unit 26, and the memory 27. It provides various vehicle information by controlling storage of vehicle information database and analysis of fault information.

According to the present invention, the driver can basically grasp the state information of the controllers or sensors mounted on the vehicle through the display unit 26, and if the driver wants the detailed information of the vehicle separately, the driver can obtain the vehicle information through the display unit 26. On request. If there is a device or device that has a failure, the failure information is analyzed and provided through the display unit 26, which is very convenient.

For example, information of a vehicle that can be received through the can network unit 21 includes information such as driving speed, oil amount, oil supply amount, door state, air conditioner, air bag, battery, tire, and other electronic parts, and an electronic control unit ( ECU performs communication from the vehicle's internal electronic units connected to the electric control unit to receive the current state information of the vehicle.

The above-described vehicle information providing device may be provided in the vehicle as a driver instrument panel or a separate device made of LCD to provide vehicle information, and may be optionally applied to the AVN system to provide vehicle information.

2 is an operation flowchart for providing vehicle information in the vehicle information providing apparatus of the present invention.

In step 201, the driver starts the vehicle by turning on the ignition switch.

In step 203 to step 207, the microcomputer 25 is initialized, which device or sensors are provided in the vehicle, and the microcomputer 25 determines an item to be displayed through the screen unit 26.

In step 209, the vehicle information database stored in the memory 27 is initialized by the microcomputer 25.

After initializing the vehicle information database in the microcomputer 25 in step 211, an event driven process is operated to collect state information of various devices or sensors mounted on the vehicle.

In step 213, the scheduler (scheduler) of the present invention continues to operate while the vehicle is running to access the vehicle information database to provide the driver with the vehicle state data obtained after starting through the display unit 26, and newly collected or Provides the requested data.

Step 301 is a detailed operation of the event driven process described in step 211 described above, and the microcomputer requests current vehicle state information for each identified device of the vehicle.

In step 303 to step 305, when the response message is received from the device or the sensors of the vehicle, the microcomputer 25 determines the vehicle state based on the reference data and stores the result data in the memory 27. Save to vehicle information database.

The event driven process described above in step 307 is applied to all the controllers and sensors that can communicate with the vehicle to determine the vehicle state.

Applied to all controllers and sensors that can communicate, the current vehicle status is identified and stored in the vehicle information database.

When the current vehicle state is detected, the microcomputer 25 provides the display item to the driver through the screen unit 26.

Meanwhile, step 401 of the present invention basically shows a state machine that provides a service when a failure or a driver's request is provided in addition to the vehicle information provided according to the vehicle information method of the present invention.

In the normal state, when the ignition switch is turned on to the driver in the above-described vehicle information providing method, the screen unit may be determined by comparing the newly updated vehicle information database with reference data by using a scheduler. Through 26).

Accordingly, the driver may easily determine whether the main equipment or the apparatus of the current vehicle is normally operated through the screen unit 26.

In step 403, if the driver wants to check information on a separate device or device, the driver may make a request through the screen unit 26.

The microcomputer 25 obtains and provides information on the requested device and sensors from the vehicle information database described above, or operates the event driving process to grasp the vehicle state information and to display the vehicle to the display unit 26 through the scheduler. Provide status information.

An error message is provided when a response message is not received for a predetermined time when the event driven process for the driver's request is operated.

Step 405 relates to a method of handling when a failure occurs in a device of a vehicle by operating an event driving process.

The microcomputer 25 analyzes the response message collected by using the reference data in the vehicle information database, analyzes the cause of the failure of the corresponding device, and records the failure information of the corresponding device in the vehicle information database. After registration, the scheduler accesses the vehicle information database and displays the failure information through the display unit 26.

The present invention can also be applied to a serial communication (Serial) vehicle used in a conventional vehicle and can be used in both CAN (Controller Area Network) communication vehicle, Flex Ray (Flex Ray) vehicle.

In addition, the present invention provides a controller such as an engine management system (EMS), a transmission control unit (TCU), an airbag, an engine rotation state, an indoor temperature sensor, an outside temperature, an ignition switch, a vehicle speed sensor, a battery voltage, and the like. By providing detailed information to the driver through communication methods such as CAN communication, serial communication, and flex ray, the driver can check the status of the vehicle in detail while driving, so that the vehicle can be operated more safely. Will be.

Although specific embodiments have been described in the foregoing detailed description of the present invention, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention diagnoses the operation state of the main components of the vehicle by using the LCD instrument panel or the audio / video / navigation system of the vehicle, and provides the driver with detailed information. Since the defect of the vehicle can be solved, there is an effect that safer vehicle driving is possible.

In addition, the present invention can be applied to a serial communication (Serial) vehicle used in a conventional vehicle and can be used in both CAN (Controller Area Network) communication vehicle, Flex Ray (Flex Ray) vehicle.

In addition, the present invention provides a more convenient service to the user when combined with telematics.

Claims (7)

A first process of initializing a vehicle information database stored in a memory in the microcomputer when the ignition switch of the vehicle is turned on; A second process of operating an event driving process for devices and sensors mounted in the vehicle in a microcomputer to obtain current state information of the vehicle; And registering the data obtained through the event driving process into the vehicle information database, wherein a scheduler accesses the vehicle information database to display a normal or failure result of the device and sensors through a screen unit. How to Provide. The method of claim 1, The method of claim 1, wherein the memory comprises providing reference data and failure information analysis data for determining whether the device and the sensors mounted on the vehicle are normal or not. The method of claim 1, The event driving process may include transmitting a status information request message to the devices and sensors mounted in the vehicle at the microcomputer; Providing a response message regarding a current status to the status information request message in the device and sensors; And comparing and analyzing the response message with reference information and failure information data in the microcomputer to record whether the device and sensors are normal or defective in the vehicle information database. The method of claim 1, The first process Initializing the microcomputer when the ignition switch is turned on; Vehicle information providing method comprising the step of determining the display items and the devices and sensors mounted on the vehicle in the microcomputer. The method of claim 1, The third process, Requesting, by the user, status information of a desired device or sensors through the screen unit; Identifying, by the microcomputer, the state information by checking the vehicle information database or operating the event driving process for the device or sensors; And displaying status information of the device or sensors requested by the user on the screen unit. The method of claim 1, The third process, When the status information of the device or sensor received in the event driving process is received, comparing the reference data stored in the memory with the failure information data to determine whether it is normal or failure; If the device or sensor is determined to be a failure, the vehicle information providing method comprising the step of registering and storing in the vehicle information database and displaying on the screen. The method of claim 1, The third process, And the scheduler continuously accesses the vehicle information database and provides the screen unit when the status information of the display item is updated.

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