KR20000074053A - Code saving method of Kerless Entry System using communication network and the MUT - Google Patents

Abstract

The present invention relates to a code storage method of a keyless entry system using a communication network and a MUT to efficiently perform code storage control between a transmitter and a receiver of a keyless entry system using a LAN system and a MUT. Selects the code storage mode of the MUT, the MUT transmits the code storage mode to the ADM via the ISO-9141 communication method, and then the ADM transmits the code storage mode to the ETACS via the LAN system's communication network. When the code storage mode is transmitted to the receiving unit of the KES through bidirectional synchronous communication, the receiving unit switches to the code storing standby mode according to the code storing mode according to the code storing mode, and then transmits the standby mode change OK to the ETACS through the bidirectional communication. Notifies the ADM that the standby mode switch is OK through the LAN system's communication network. If the MUT transmits the standby mode switch OK to the MUT, and then the user transmits a unique code for storing the code to the receiver by using the transmitter of the KES and transmits it within a predetermined time, the code is received at the receiver using the transmitted unique code. It performs the storage, and if the code is not transmitted within a certain time or the code storage is completed, characterized in that to release the code storage mode, thus eliminating the need for a conventional code storage jig and the connector of the receiver for connecting the jig It eliminates the complexity of connecting the jig and saves money.

Description

Code saving method of Kerless Entry System using communication network and the MUT}

According to the present invention, a code storage control between a transmitter (Tx) and a receiver (Rx) of a keyless entry system using a communication network of a LAN system built in a vehicle and a MUT (Multi User inTerface) The present invention relates to a method for storing codes in a keyless entry system using a communication network and a MUT to perform a control efficiently.

Recently, due to the development of electronic equipment, a high-end vehicle has a communication system of a LAN system for exchanging information by interconnecting various electronic control units (hereinafter referred to as "ECUs").

In addition, the vehicle has a MUT, which is a self-diagnostic device for testing the engine and the TCS, so that the MUT can diagnose and control the function of each ECU outside the vehicle.

Therefore, in the related art, not only various ECUs can communicate with each other through the LAN system, but also the self-diagnosis process of the LAN system can be performed using the MUT.

On the other hand, the keyless entry system of the vehicle is a system that allows the user to automatically open and lock the door of the vehicle using a radio signal, and also to open the trunk automatically, a system that does not require the user's direct key operation.

In the keyless entry system, in order to prevent the other vehicle from receiving a radio wave from the transmitter, the transmitter and the receiver must have a unique code that only they can know.

The process of doing this with code is called code storage.

The code storage method of the conventional keyless entry system is connected to the receiver of the keyless entry system mounted on the vehicle at the time when the vehicle is produced after the vehicle is connected to a separate code storage jig (Jig) from the outside, and then operated by the transmitter. Save your own code.

However, the code storage method of the conventional keyless entry system as described above requires a separate code storage jig for code storage, and a separate connector on the receiver of the keyless entry system to connect the separate code storage jig. In addition to being expensive, the procedure for storing the code was very complicated and cumbersome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its object is economical effect by efficiently performing code storage control between a transmitter and a receiver of a keyless entry system using a MUT and a communication network of a LAN system constructed in a vehicle. A code storage method of a keyless entry system using a communication network and a MUT is provided.

1 is a block diagram of a vehicle to which a code storage method of a keyless entry system using a communication network and MUT according to the present invention is applied;

2 is a flowchart illustrating a code storage method of a keyless entry system using a communication network and MUT according to the present invention;

<Description of the symbols for the main parts of the drawings>

10: MUT20: ADM

30: ETACS40: KES

41: transmitter 42: receiver

The code storage method of the keyless entry system using the communication network and the MUT of the present invention for achieving the above object is, if the code storage mode of the MUT is selected when the code storage is required, ISO-9141 that the MUT is a code storage mode to the ADM If the ADM transmits the code storage mode to the ETACS through the communication network of the LAN system, and then the ETACS also transmits the code storage mode to the receiving unit of the KES through bidirectional synchronous communication, After switching to the code storage standby mode according to the code storage mode, ETACS sends the standby mode switch OK through two-way communication to the ETACS, and then ETACS transmits the standby mode switch OK to the ADM through the LAN system communication network. 9141 Communicate the standby mode switch OK to the MUT through the communication method, and then the user can save the code using the transmitter of KES. If a unique code for the code is transmitted to the receiver and is transmitted within a predetermined time, the code is stored in the receiver using the transmitted unique code, and the code storage mode is released if the code is not transmitted within a predetermined time or the code is completed. It is characterized by.

Hereinafter, a code storage method of a keyless entry system using a communication network and a MUT according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a vehicle to which a code storage method of a keyless entry system using a communication network and a MUT according to the present invention is applied, and performs diagnosis and control functions of various ECUs in a vehicle by performing mutual communication through a communication network of a LAN system. MUT 10, the door of the vehicle and the Assist Door Module (ADM) 20, which operates to open and lock the door, and the ADM 20 automatically opens and locks the door of the vehicle according to the communication result with KES. ETACS (30) for controlling to be able to control, a transmitter for transmitting a radio signal for automatically controlling the door or trunk of the vehicle and a radio signal transmitted from the transmitter (41) to receive and output to the ETACS (30) It consists of a keyless entry system (KES) 40 consisting of a receiving unit 42.

As described above, the present invention performs code storage using the MUT 10 and the communication network of the already established LAN system without using a separate code storage jig and a connector of the receiver 42.

That is, code storage is performed through software processing using a protocol of a LAN system, a MUT interface (ISO 9141), and a bidirectional communication method between the ETACS 30 and the KES 40.

The code storage method of the keyless entry system using the communication network and the MUT of the present invention having the above configuration will be described with reference to the flowchart of FIG. 2.

When the code storage mode of the MUT 10 is selected at the time point at which code storage is required (S1), the MUT 10 transmits the code storage mode to the ADM 20 through the ISO-9141 communication method (S2).

Then, the ADM 20 transmits the code storage mode to the ETACS 30 through the communication network of the LAN system (S3), and the ETACS 30 also receives the receiver 42 of the KES 40 through bidirectional synchronous communication. Transmit in code storage mode (S4).

Accordingly, the receiver 42 in the KES 40 switches to the code storage standby mode according to the code storage mode transmitted in the step S4 (S5), and then waits for the ETACS 30 through two-way communication. Transmit that the mode switch is OK (S6).

Then, the ETACS 30 transmits the standby mode switch OK to the ADM 20 through the communication system of the LAN system (S7), and then the ADM 20 also waits for the MUT 10 through the ISO-9141 communication method. Transmit that the mode switch is OK (S8).

Thereafter, the user transmits a unique code for storing a code to the receiver 42 using the transmitter 41 of the KES 40 (S9).

It is determined whether the unique code transmitted in the step (S9) is transmitted within a predetermined time, for example, 10 seconds (S10), if the transmission within the predetermined time using the unique code transmitted from the transmitter 41, receiving unit In step 42, code storage is performed (S11).

When the code storage in step S10 is not transmitted within a predetermined time or the code storage of the step S11 is completed, the code storage mode is released (S12).

As described above, according to the present invention, a conventional code storage jig and a receiver for connecting the jig are performed by performing a code storage function at a receiver of a KES by using a communication network and a MUT of a LAN system already built in a vehicle. Eliminating the need for connectors eliminates the complexity of connecting jigs and reduces costs.

In addition, due to the limited jig as in the prior art, there is an advantage that the code storage is not limited to a specific region, and the code storage is performed by using the MUT which is a general purpose product, regardless of the place.

Claims (1)

In the case where the code storage mode of the MUT 10 is selected when the code storage is required, a first step of the MUT 10 transmitting the code storage mode to the ADM 20 through an ISO-9141 communication method, and the first After performing the step, when the ADM 20 transmits the code storage mode to the ETACS 30 through the communication network of the LAN system, the ETACS 30 also enters the code storage mode to the receiver 42 of the KES 40 through two-way synchronous communication. In the second step of transmitting, the receiver 42 in the KES 40 switches to the code storage standby mode according to the code storage mode transmitted in the second step, and then waits for two-way communication with the ETACS 30. A third step of transmitting the change OK, and after performing the third step, when the ETACS 30 transmits the standby mode change OK to the ADM 20 through the communication network of the LAN system, the ADM 20 also uses the ISO-9141 communication method. Performing a fourth step of transmitting the standby mode switch OK to the MUT 10 through the fourth step; Thereafter, the user transmits a unique code for storing the code to the receiving unit 42 by using the transmitter 41 of the KES 40 and the unique code transmitted in the fifth step within a predetermined time. In case of transmission, the sixth step of storing the code by the receiver 42 using the unique code transmitted in the fifth step and the unique code transmitted in the fifth step are not transmitted within a predetermined time or the first code. And a seventh step of releasing the code storage mode when the sixth step of code storage is completed.