KR20020014313A - self diagnosis system for automotive vehicle - Google Patents

Abstract

PURPOSE: A self testing device is provided to exactly and quickly maintain by exactly finding a defected content and transmitting the defected content through a wire/wireless communication. CONSTITUTION: A self testing device of a vehicle contains many controllers(A1,A2,..An) to detect and to store abnormalities about various components; a defective testing device(S) to find the exact abnormality by integrating the abnormal state from the controllers; a communicating device(H) to communicate by connecting with the defective testing device and to transmit the abnormal state; and a port for communication(P) to connect the defective testing device with the communicating device through a cable for communication(C). Thereby, the convenience of a user is improved and the maintaining time and the economic loss are reduced.

Description

Self diagnosis system for automobiles {self diagnosis system for automotive vehicle}

The present invention relates to a self-diagnosis apparatus of a vehicle, and more particularly, by detecting various abnormalities of the equipment parts of the control target from various controllers provided in the vehicle, and then transmitting them to the wire / wireless communication The present invention relates to a self-diagnosis device for a vehicle that enables quick response with accurate detection.

In general, a vehicle is provided with a plurality of types of controllers to detect various situations occurring in the equipment parts of the corresponding control object and to detect abnormalities of the equipment parts through this.

Such a controller includes an engine control unit (ECU) that detects the state of the engine and its peripheral equipment parts and controls its operation, or a shift control unit that detects the state of the transmission and its peripheral equipment parts and controls its operation ( TCU) and an electronic time and alarm control system (ETACS) for detecting a state of a seat belt, a door lock device or a power window device and controlling its operation.

However, many types of controllers as described above only detect and store a state of a corresponding equipment part, in particular, an abnormal state.

Therefore, when a failure occurs in a specific part of the vehicle while driving, the driver contacts the maintenance company to request maintenance, and the contacted maintenance company sends the mechanic to the place where the failure occurs.

In this case, since it is difficult to communicate the exact failure site between the driver and the maintenance worker, the equipment that has a failure in the maintenance equipment when the maintenance worker does not know the exact failure site and is dispatched to the vehicle. If you don't have a replacement part for the part, you have to procure the part again or tow the broken vehicle to the repair shop, which will cause inconvenience to the driver as well as the time required for maintenance. .

Accordingly, the present invention has been made in view of the above, and is provided with a failure diagnosis equipment that can detect the presence or absence of the abnormality of the equipment parts of the control object from the various controllers provided in the vehicle, through which The purpose of this is to identify accurate faults and then send out wired and wireless communications so that accurate and prompt response can be taken during maintenance.

In order to achieve the above object, the present invention provides a plurality of controllers for detecting and storing an abnormality of various equipment parts provided in a vehicle, and detecting and integrating abnormal conditions for the corresponding equipment parts from the controller. It is characterized in that the fault diagnosis equipment for determining the correct fault diagnosis, and the communication equipment is connected to the fault diagnosis equipment to communicate with each other to send out the abnormal situation.

1 is a configuration diagram schematically showing a self-diagnosis apparatus for a vehicle according to the present invention.

<Description of Symbols for Main Parts of Drawings>

A ₁ , A ₂ , ... A _n -Controller S-Fault diagnosis equipment

H-communication equipment P-communication port

C-Communication Cable

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

1 is a configuration diagram schematically showing a self-diagnosis apparatus for a vehicle according to the present invention.

As shown in the drawings, the present invention can detect a corresponding situation from various parts of a control object provided in a vehicle, and control various types of controllers (A ₁ , A ₂ , ... a _n) and the controller _{(a 1, a 2, ...} a n) and communicate with each other and that each controller (a _1, a _2, ... a _n, along) the equipment of the controlled object detected by the It is composed of the failure diagnosis equipment (S) to grasp the abnormality of the parts.

Here, the fault diagnosis equipment (S) is connected to communicate with each other and the communication equipment (H) to transmit the abnormal situation for the control equipment equipment detected by the fault diagnosis equipment (S) wired / wireless (H) This communication equipment can be implemented as wired / wireless communication equipment.

To this end, the troubleshooting device (S) has a communication port (P) for communication with the communication device (H), and a communication cable (C) for connecting between the communication port (P) and the communication device (H). Added.

Here, the controller (A ₁ , A ₂ , ... A _n ) is an engine control unit (ECU) for detecting the state of the engine and the peripheral equipment components related thereto and controlling the operation thereof, the transmission and the peripheral equipment components associated with it Shifting control unit (TCU) that detects the state of and controls its operation, and ETACS (Electronic Time and Alarm Control System) that detects and controls the state of seat belts, door locks, power window devices, etc. As described above, the controllers A ₁ , A ₂ ,... A _n detect a state of an equipment component of a corresponding control object, in particular, an abnormal state, and store information thereof.

In addition, the fault diagnosis equipment (S) is the controller _{(A 1, A 2, ...} A n) and the communication to be detected from which the stored fault states of the equipment to be controlled comprehensively grasp the accurate than The site and abnormal situation can be judged.

In addition, the communication device (H) is mutually regulated to communicate with the failure diagnosis device (S), and through this, it is possible to send data on the abnormal situation determined by the failure diagnosis device (S). .

Therefore, when a failure occurs in a specific part of the vehicle while driving, the controllers A ₁ , A ₂ ,... A _n detects an abnormal state generated in the equipment part of the control object and stores information on the abnormal state. .

Thereafter, the controllers A ₁ , A ₂ ,... A _n output information on the identified abnormal state to the failure diagnosis device S, and the failure diagnosis device S is the controller A _1. From the information on the abnormal state input from, A ₂ , ... A _n ), it is possible to determine the exact abnormal part or abnormal state by comprehensively grasping the failure state of the equipment part under control.

At this time, the driver connects the communication cable (C) to the communication port (P) of the fault diagnosis device (S), and connects the communication device (H) to the communication cable (C), When the wireless communication, the information on the abnormal part of the vehicle identified by the failure diagnosis equipment (S) is wired / wireless transmission through the communication equipment (H).

On the other hand, the maintenance company accurately recognizes the current state of the vehicle from the information on the abnormal part of the vehicle received through the communication equipment (H) and takes appropriate countermeasures for the situation.

As described above, when an abnormal state accurately identified from the vehicle in which the failure occurs through the failure diagnosis equipment S can be quickly and accurately transmitted to the maintenance shop through the communication equipment H, the maintenance shop is responsible for the control object. With equipment parts that can cope with the equipment parts, it can be dispatched quickly to the site where the failure occurred, so that the time required for maintenance can be shortened.

In addition, the driver of the vehicle in which the failure occurs also reduces the time required from the point of failure to the completion of maintenance and at the same time there is no difficulty in receiving maintenance on site without having accurate maintenance knowledge. do.

Or more, according to the automotive self-diagnosis apparatus according to the invention as described above, when a failure has occurred in various parts of the control target equipment provided in the vehicle it various controllers _{(A 1, A 2, ...} A n) the In addition to the detection and output to the fault diagnosis device (S) to determine the exact abnormal state, the fault diagnosis device (S) using the communication equipment (H) to maintain the data about the abnormal state of the vehicle to the maintenance shop / By wireless transmission to receive a quick maintenance, to facilitate the user's convenience, there is an effect that can reduce the time and economic loss during maintenance.

Claims (3)

A plurality of controllers (A ₁ , A ₂ , ... A _n ) for detecting and storing abnormalities of various equipment parts provided in the vehicle, and these controllers (A ₁ , A ₂ , ... A _n ) Self-diagnosis apparatus for a vehicle comprising a failure diagnosis device (S) configured to detect the abnormal situation for the corresponding equipment parts from the integrated and determine the exact abnormal diagnosis. According to claim 1, wherein the fault diagnosis device (S) is connected to communicate with each other and the communication equipment (H) to transmit the abnormal situation for the corresponding control device equipment detected by the fault diagnosis device (S) (H) Self-diagnosis apparatus for a vehicle, characterized in that provided. The self-diagnostic apparatus of claim 1, wherein the troubleshooting device (S) is provided with a communication port (P) for connection via a communication cable (C) with the communication device (H).