KR20090128244A - System and method for monitoring about button input - Google Patents

Abstract

PURPOSE: A button input monitoring system and method are provided to secure stability of button input signals and remove unavailable button input signals, thereby preventing malfunction of a vehicle. CONSTITUTION: A button input monitoring method comprises the steps of: transmitting button input signals to first and second controllers(200,300), generating activation or deactivation event by the first and second controllers, creating the button input signals delayed by monitoring of the first and second controllers into first and second indirect input signals, transferring the first indirect input signal to the second controller and the second indirect input signal to the first controller, creating an execution event corresponding to each indirect input signal by the first and second controllers, discriminating vehicle driving information based on the executed event and creating a control request signal for a vehicle, and determining whether the control request signal can be executed and performs control for the vehicle corresponding to the control request signal according to the determination result.

Description

Monitoring system and method for button input {SYSTEM AND METHOD FOR MONITORING ABOUT BUTTON INPUT}

The present invention relates to a monitoring system and method for a button input, and more particularly to the electronic control that the user controls the ACC, IGN1, IGN2, starter relay using a mechanical key to start the engine of the vehicle in the vehicle The present invention relates to a monitoring system and method for button input for receiving a button input signal according to SIL (Safety Integrity Level) 2 when replacing a button.

In conventional systems using mechanical keys, the vehicle's terminal state and engine operating state (i.e., engine off, running or cracking) change depending on the position of the key (OFF, ACC, IGN1, IGN2 and Start) that the user operates. Let's do it.

Recently, however, a vehicle equipped with a button starter for supplying power to a button type without using a key box has been provided.

Vehicles equipped with a button starter are no longer equipped with the existing key box, and the power control unit intercepts the output relay and supplies power according to the vehicle conditions, rather than supplying OFF, ACC, IGN, and start power through the switch contacts. do.

However, since the start type vehicle of the button type executes the control of the vehicle using a button which is one of the electronic components, the input button must be determined very accurately.

This shall satisfy at least SIL2, which satisfies Category 3 of the control system, among the safety classes of the electronic components classified as SIL1, SIL2, SIL3 in the relevant standards, where category 3 in the control system has a single defect in safety-related parts. Proven safety principles, consisting of redundancy or multiplexing, are applied to ensure that safety functions are not lost even if they occur.

Accordingly, in a vehicle that requires precise driving operation, a button input signal must be provided in accordance with SIL2, and a method for this is required.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is that a user in a vehicle controls the ACC, IGN1, IGN2, starter relay using a mechanical key to start the engine of the vehicle. Monitoring system and method for button input that executes related control after mutually monitoring button input signal from two or more controllers in order to receive button input signal according to SIL (Safety Integrity Level) 2 when replacing with electronic button To provide.

According to an aspect of the present invention for achieving the above object (a) transmitting the button input signal formed by the button input to at least two or more control unit, (b) the at least two or more control unit to the first control unit and the second control unit Monitoring the button input signal through the first control unit to generate a corresponding active or inactive event and monitoring the button input signal through the second control unit to generate a corresponding active or inactive event; C) forming the button input signal delayed by the monitoring of the first control unit as a first indirect input signal, and forming the button input signal delayed by the monitoring of the second control unit as a second indirect input signal; The first indirect input signal is transmitted to the second controller, and the second indirect input signal is transmitted to the first controller. After transmitting to the fisherman, the first control unit monitors whether the button input signal is matched with the second indirect input signal to generate a corresponding execution event, and the second control unit generates the button input signal and the second control unit. 1) generating a corresponding execution event by monitoring whether the indirect input signal is matched, and (e) determining vehicle driving information based on the execution event formed through the second control unit to form a control request signal for the vehicle, And determining whether the control request signal is executable based on the execution event formed by the first control unit, and then executing control of the vehicle corresponding to the control request signal according to the determination result. do.

Preferably, the monitoring method for the button input (F) the execution result formed by the first control unit to perform the control for the vehicle is transmitted to the second control unit, the second control unit transmits the execution result It is characterized by updating the vehicle driving information based on.

Preferably, the step (e) determines whether the first control unit is executable for the control request signal according to whether an execution event formed through the first control unit matches an execution event formed through the second control unit. It is characterized by determining.

Preferably, the step (e) filters the button input signal to an invalid signal when there is no match between the execution event formed through the first control unit and the execution event formed through the second control unit. do.

Accordingly, in the present invention, when the user replaces the control of the ACC, IGN1, IGN2, and starter relay with an electronic button by using a mechanical key to start the engine of the vehicle, the SIL (Safety Integrity Level) 2 In order to receive the button input signal, the two or more controllers monitor the button input signal mutually and then execute related control, so that not only can the stability of the button input signal being input, but also the button input not validly input. The signal may be filtered to prevent malfunction of the vehicle.

Hereinafter, a preferred embodiment of a monitoring system for a button input according to the present invention with reference to the accompanying drawings in more detail.

1 is a block diagram of a monitoring system for a button input according to an embodiment of the present invention. As shown by way of example only in FIG. 1, the monitoring system for button input includes a button input unit 100 for generating a button input signal with a user's button input, and at least one or more for receiving and monitoring the button input signal, respectively. It includes a control unit.

Here, the case in which at least one control unit includes the first control unit 200 and the second control unit 300 will be described in detail below as an example.

FIG. 2 is a conceptual diagram illustrating an operation of the first control unit 200 shown in FIG. 1. As shown only as an example in FIG. 2, the first control unit 200 receives and monitors a button input signal from the button input unit 100 in hardware, and an event such as activation or deactivation of the button input signal according to the monitoring result. Create

Here, the monitoring is related to the up or down of the signal clock for the button input signal, the time for which the up or down of the signal clock is continued, and thus the button input signal when the signal clock for the button input signal is up. When the signal clock for the button input signal is down, the button input signal is deactivated.

In addition, the first control unit 200 forms a button input signal delayed due to the monitoring process as the first indirect input signal and transmits the first indirect input signal to the second control unit 300 so that the first control unit 200 crosses each other accurately. Monitoring will be executed.

Similarly, the first control unit 200 is also provided with a second indirect input signal formed by the time delay of the button input signal from the second control unit 300, based on the previously executed button input signal to the second indirect input signal Monitoring to determine whether the button input signal matches the second indirect input signal, and then the execution event corresponding to the determined result (for example, button press, button short press, button press 3 times for 3 seconds, button Long press, etc.).

3 is a conceptual diagram illustrating an operation of the second control unit 300 shown in FIG. 1. As shown only as an example in FIG. 3, the second control unit 300 receives and monitors a button input signal from the button input unit 100 in hardware, and an event such as activation or deactivation of the button input signal according to the monitoring result. Create

In addition, the second control unit 300 forms the button input signal delayed due to the monitoring process as the second indirect input signal and transmits the second indirect input signal to the first control unit 200 so as to cross each other to accurately monitor the button input signal. Done.

Subsequently, the second control unit 300 receives the first indirect input signal formed by the button input signal from the first control unit 200 in time delay, and based on the previously executed button input signal, the first indirect input signal. Monitoring is performed to determine whether the button input signal matches the first indirect input signal, and then the execution event corresponding to the determined result (for example, button press, button short press, 3 button press for 3 seconds, Button long press, etc.)

Further, the second control unit 300 determines the vehicle driving information (for example, the state of the button input terminal, the response state of the EMS ECU, whether the authentication information confirms that the user of the vehicle, and whether the brake switch is input) based on the execution event. The control request signal for the vehicle is transmitted to the first control unit 200.

Accordingly, the first controller 200 determines whether the control request signal is executable or not according to whether the execution event generated by the first controller 200 and the execution event generated by the second controller 300 match. Then, the related vehicle control is executed according to this determination result.

Thereafter, the first controller 200 transmits the result generated by executing the vehicle control to the second controller 300.

Based on the event generated by the operation of the monitoring system for the button input 4 and 4 showing the counting execution according to the button input signal shown in FIG. I want to see.

Herein, a process of activating a button input signal and a process of activating an indirect input signal (for example, a first indirect input signal) among various events that are activated or deactivated will be described as an example.

FIG. 6 is a flowchart illustrating a process of activating a button input signal due to an operation of a monitoring system for a button input shown in FIG. 1. As shown only by way of example in Figure 6, after the button input signal is applied to the first control unit 200 and the second control unit 300 (S100), each control unit when the signal clock of the button input signal is up Counting (S102).

If the counting result is smaller than "0" in step S102, processing for checking whether "button long press" is found is added (S104 to S106).

Otherwise, if the counting result is greater than or equal to '0' in step S104, it is determined whether the processing for checking whether the “button press” is found without going through the step S106 is activated (S108).

In this case, when the "button press" is activated in step S108, a process of generating an event for the "button press" is added (S110). When the "button press" is not activated, the step S110 is not performed. It indicates whether or not to activate the processing for checking whether the "three press for three seconds" is found (S112).

In step S112, if the processing for checking whether "three pushes for three seconds" is activated (S114), whether counting has occurred once during the process of counting whether three times are pressed for three seconds. If not, it is determined whether it is one or more times (S116).

In step S116, if it is determined that the counting once, it continues to run whether or not additional counting occurs through the timer (S118).

Or in step S116, when the counting of the button input signal is three or three times or more and the counting of the indirect input signal is executed, the counting of the button input signal is terminated, and the indirect input signal is counted three times for three seconds. If the event of "three times for 3 seconds" is executed (S120 to S122).

Furthermore, if the processing for checking whether "three presses for three seconds" is found in step S112 is not activated, the counter operation for checking whether the count is counted three times or more for three seconds is not executed. The counter for the limp home cracking operation of the vehicle is also not executed (S124).

Thereafter, a process for checking whether processing for detecting "button short press" is activated (S126), and if processing for "button short press" is activated, an event of "button short press" is executed. If (S128), if the processing for the "button short press" is not activated, the activation event for the button input signal is executed (S130).

Here, a minimum time for determining whether the button is pressed continuously is set in advance, and when the button is pressed within the preset time, it is determined that the button is pressed shortly.

FIG. 7 is a flowchart illustrating a process of activating an indirect input signal due to an operation of a monitoring system for button input shown in FIG. 1. As shown by way of example only in Fig. 7, after the indirect input signal is applied to the first control unit and the second control unit 300 (S200), each control unit counts the case where the signal clock of the indirect input signal is up (S202). ).

If the counting result is smaller than '0' in step S202, processing for confirming whether " button long press " is found is added (S204 to S206).

Otherwise, if the counting result is greater than or equal to '0' in step S204, it is determined whether the processing for checking whether a "button press" is found without going through the step S206 (S208).

Here, in step S208, if "button press" is activated, a process of generating an event for "button press" is added (S210). If "button press" is not activated, step S210 is not performed. It indicates whether or not to activate the processing for confirming whether "press 3 times for 3 seconds" (S212).

In step S212, if processing for checking whether "three pushes for three seconds" is activated (S214), whether counting has occurred once during the process of counting whether three times are pressed for three seconds. Otherwise, it is determined whether one or more times (S216).

In step S216, if it is determined that the counting once, it continues to run whether additional counting occurs through the timer (S218).

Or in step S216, when the counting of the button input signal is three or three times or more and the counting of the indirect input signal is executed, the counting of the button input signal is terminated, and the indirect input signal is counted three times for three seconds. If the event of "three times for 3 seconds" is executed (S220 to S222).

Furthermore, if the processing for checking whether "three presses for three seconds" is found in step S212 is not activated, the counter operation for checking whether the count is counted three times or more for three seconds is not executed. The counter for the limp home cracking operation of the vehicle is also not executed (S224).

Thereafter, a process for checking whether the processing for detecting the "button short press" is activated (S226), and if the processing for the "button short press" is activated, the event of the "button short press" is executed. If (S228), if the processing for the "button short press" is not activated, the activation event for the button input signal is executed (S230).

FIG. 8 is a flowchart schematically illustrating a process of operating a monitoring system for a button input shown in FIG. 1. As shown only as an example in FIG. 8, the monitoring method for the button input proceeds to the user's button input through the button input unit 100 (S300).

Thereafter, the button input signal formed through the button input unit 100 is transmitted to the first control unit 200 and the second control unit 300 (S302 and S304).

Here, the first control unit 200 monitors the button input signal to generate a first event on whether the signal clock of the button input signal is up and activated, or whether the signal clock of the button input signal is down and inactivated (S306). To S308).

Thereafter, the first controller 200 forms a button input signal delayed by monitoring as a first indirect input signal (S310).

Similarly, the second control unit 300 also monitors the button input signal and generates a second event on whether the signal clock of the button input signal is up and activated, or whether the signal clock of the button input signal is down and inactivated (S312). To S314).

Thereafter, the second controller 300 forms a button input signal delayed by monitoring as a second indirect input signal (S316).

The first indirect input signal and the second indirect input signal formed in steps S310 and S316 are transmitted to the first control unit 200 and the second control unit 300, respectively (S318).

The first control unit 200 that receives the second indirect input signal from the second control unit 300 through step S318 monitors whether the button input signal and the second indirect input signal match each other, and correspond to a corresponding third event (for example, Button press, button short press, button long press, etc.) (S320).

Similarly, the second control unit 300 which receives the first indirect input signal from the first control unit 200 through step S318 monitors whether the button input signal and the first indirect input signal match with each other. For example, button press, button short press, button long press, etc.) are executed (S322).

Subsequently, the second controller 300 determines driving information of the vehicle based on the fourth event formed (S324), forms a control request signal for the vehicle according to the determination result, and transmits it to the first controller 200. (S326).

Accordingly, the first controller 200 determines whether or not the control request signal is executable based on whether the third event and the fourth event generated previously match, and then controls the vehicle corresponding to the control request signal according to the determination result. Is executed (S328).

Thereafter, the first control unit 200 forms a control execution result and reports it to the second control unit 300 (S330), and the second control unit 300 receives the control execution result to update the driving information of the vehicle. (S332).

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

In addition, the present invention is adapted to SIL (Safety Integrity Level) 2 when the user replaces the control of the ACC, IGN1, IGN2, starter relay with an electronic button by using a mechanical key to start the engine of the vehicle. In order to receive the button input signal, the two or more controllers monitor the button input signal mutually and then execute related control. It is an invention that can be used.

1 is a configuration diagram of a monitoring system for button input according to an embodiment of the present invention;

2 is a conceptual diagram illustrating an operation of a first control unit illustrated in FIG. 1;

3 is a conceptual diagram illustrating an operation of a second control unit illustrated in FIG. 1;

4 is a view illustrating an event generated by an operation of a monitoring system for a button input shown in FIG. 1;

5 is a diagram illustrating counting execution according to a button input signal shown in FIG. 4;

FIG. 6 is a flowchart illustrating a process of activating a button input signal due to an operation of a monitoring system for a button input shown in FIG. 1;

FIG. 7 is a flowchart illustrating a process of activating an indirect input signal due to an operation of a monitoring system for button input shown in FIG. 1;

FIG. 8 is a flowchart schematically illustrating a process of operating a monitoring system for a button input shown in FIG. 1.

<Description of Symbols for Main Parts of Drawings>

100: button input unit 200: first control unit

300: second control unit

Claims (4)

(A) transmitting a button input signal formed by the button input to at least two control units; (B) When the at least two control units are composed of a first control unit and a second control unit, the button input signal is monitored through the first control unit to generate a corresponding active or inactive event, and the button is controlled through the second control unit. Monitoring the input signal to generate a corresponding active or inactive event; (C) forming the button input signal time-delayed by the monitoring of the first control unit as a first indirect input signal, and forming the button input signal time-delayed by the second control unit as the second indirect input signal; (D) after transmitting the first indirect input signal to the second control unit and transmitting the second indirect input signal to the first control unit, through the first control unit to the button input signal and the second indirect input signal; Generating a corresponding execution event by monitoring a match with each other, and generating a corresponding execution event by monitoring a match between the button input signal and the first indirect input signal through the second control unit; And (E) determining the vehicle driving information based on the execution event formed through the second control unit to form a control request signal for the vehicle, and whether the control request signal is executable based on the execution event formed through the first control unit; And determining control of the vehicle corresponding to the control request signal according to the determination result. The method of claim 1, wherein the monitoring method for the button input (F) The execution result formed by the first control unit executing the control on the vehicle is transmitted to the second control unit, and the second control unit updates the vehicle driving information based on the execution result. Monitoring method for button input. The method of claim 1 or 2, wherein the step (e) The first control unit determines whether the control request signal is executable or not according to whether the execution event formed through the first control unit and the execution event formed through the second control unit are matched. Monitoring method. The method of claim 3, wherein the step (e) And if the execution event formed by the first control unit does not match with the execution event formed by the second control unit, filtering the button input signal to an invalid signal.

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