KR20060085391A - A total safety system of micro commercial bus and control method thereof - Google Patents

Abstract

In the small commercial vehicle, by controlling the start of the engine according to the seat belt wearing of all occupants and whether the door is opened or closed, to provide stability to the operation of the small commercial vehicle,

The process of detecting the occupant with the information of the piezoelectric sensor, the process of detecting whether the occupant is wearing the seat belt with the information of the seat belt switch, and if the occupancy of the occupant with the seat belt is inconsistent, an alarm is output to output the alarm. Induces wearing, detects whether the occupant is seated and seatbelt is matched with door switch information, and if the door is open, outputs an alarm, and if it is detected that the door is closed, between the immobilizer and the ECU Connecting the communication line to maintain the engine start-up state.

Safety device, engine start, piezo sensor, immobilizer

Description

Integrated safety device for small commercial buses and its control method {A TOTAL SAFETY SYSTEM OF MICRO COMMERCIAL BUS AND CONTROL METHOD THEREOF}

1 is a block diagram of an integrated safety device of a small commercial bus according to the present invention.

2 is a plan view showing the mounting state of the piezoelectric sensor in a small commercial bus according to the present invention.

3 is a flowchart illustrating an embodiment of performing integrated safety control in a small commercial bus according to the present invention.

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

10: piezoelectric sensor 20: seat belt switch

30: door switch 40: control unit

50: switch 60: immobilizer

70: ECU

The present invention relates to a safety device for a vehicle, and more particularly, to provide stability to the operation of a small commercial vehicle by controlling the start of the engine according to whether the seat belt is worn by the occupant power and whether the door is opened or closed in the small commercial vehicle. The present invention relates to an integrated safety device for a small commercial bus and a control method thereof.

In accordance with the development of electronic technology and the user's convenience, vehicles are equipped with various convenience devices and safety devices.

The safety device controls the engine start of the vehicle at the source to prevent the vehicle from starting in an emergency or dangerous state.If the driver and the passenger are not wearing the seat belt, the engine cannot be started or the brake is released. A system is being applied to prevent this from happening.

Therefore, it is difficult to confirm whether the seat belt is worn on all the occupants in the commercial vehicles that are occupied by a large number of passenger vehicles or small commercial vehicles that are mainly used for commuting in school or school. There are drawbacks to this.

In the case of a commercial vehicle or a small commercial vehicle, the occupant of the seat occupies more than one, so there is no separate safety device for standing passengers. There is a problem that occurs.

In particular, in the case of school attendance, there is a disadvantage that the incidence of falling accidents due to the open start or operation of the door due to the boarding of the children lacking concentration.

The present invention has been invented to solve the above problems, its purpose is to start the engine by intermittently controlling the communication line between the immobilizer and the engine control means according to the seat belt wearing of the occupant power in the small commercial vehicle and whether the door is opened or closed By controlling the, to provide stability to the operation of the small commercial vehicle.

The present invention for realizing the above object is a piezoelectric sensor mounted on each seat of the vehicle at least two or more and detects the presence (ride) of the occupant by switching the weight of the occupant; A seat belt switch which switches contacts according to whether the seat belt is worn by the occupant and detects information about the seat belt switch; A door switch detecting information of whether the door providing the passenger's riding and unloading is opened or closed; The number of occupants is identified by the information of the piezoelectric sensor, the seatbelt switch is detected by the information of the seatbelt switch, and when the seatbelt is confirmed to be worn by all the occupants, the information on the door switch indicates whether the door is normally closed. A control unit for controlling an output of an alarm when the door is in an open state and controlling the engine to be enabled when it is determined that the door is normally closed; A display unit for displaying occupant information and information on whether the occupant wears the seat belt according to a signal of the controller based on a seat arrangement structure; The contact point is switched by a signal of the control unit to provide an integrated safety device for a small commercial bus, characterized in that it comprises a switch for controlling the engine start by interrupting the communication line between the immobilizer and the ECU.

In addition, the present invention comprises the steps of detecting the occupant with the information of the piezoelectric sensor; Detecting whether the seat belt of the occupant is worn by the information of the seat belt switch; Outputting an alarm to induce a seat belt worn by the occupant when the occupant and the seat belt wearer are inconsistent, and detecting whether the occupant is seated with the door switch information when the occupant is seated with the seat belt; If the door is open, it outputs an alarm, and if it detects a stable closing of the door, it connects the communication line between the immobilizer and the ECU and maintains the engine in a ready state. Provide a method.

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

As shown in FIG. 1, the integrated safety device of a small commercial bus according to the present invention includes a piezoelectric sensor 10, a seat belt switch 20, a door switch 30, a control unit 40, a display unit 50, and a switch ( 60), the immobilizer 70 and the ECU 80.

The piezoelectric sensor 10 detects the presence (ride) of the occupant based on the weight of the occupant and outputs information about the occupant. The piezoelectric sensor 10 is mounted on at least two seats in each seat of the vehicle as shown in FIG. The detected signal for whether or not to ride on is collected by the control unit 40.

The seat belt switch 20 switches the contact points according to whether the seat belt is worn by the occupant and transmits information about the seat belt switch 20 to the controller 40.

The door switch 30 detects information on whether the door providing the passenger's riding and getting off is opened and transmits the information to the controller 40.

The controller 40 detects the occupants of the occupants from the information of the piezoelectric sensor 10, detects the occupants of the seatbelts from the seatbelt switch 20, and then checks that the seatbelts are worn on all occupants. It is determined whether the door is normally closed from the information of the door switch 30, and if the door is in an open state, the driver is required to wear a seat belt through a warning lamp and a warning sound, and if the door is normally closed, the engine is enabled. Output a control signal.

The display unit 50 displays information on the occupant number and information on whether the seat belt is worn by the occupant according to a signal applied from the controller 40.

The display unit 50 is displayed based on the structure of the seat arrangement to easily distinguish the position of the occupant and the position of the occupant not wearing the seat belt.

The switch 60 controls the engine startup by interrupting the communication line between the immobilizer 70 and the ECU 80 by switching the contact point by a control signal applied from the controller 40.

The immobilizer 70 controls engine starting through comparison with the code set in the ignition key.

The ECU 80 controls the overall operation of the engine according to the driving request and various state information of the vehicle.

An operation of the present invention including the above function will be described with reference to FIG. 3 as follows.

Since at least two piezoelectric sensors 10 mounted on each seat of a small commercial bus mainly used for commuting or academy commuting are contacted by the weight according to the weight of the occupant, the control unit 40 is piezoelectric. The information on the sensor 10 is collected to detect a current state of the occupant A in the vehicle (S101).                     

Thereafter, the detected state of the occupant A is temporarily stored in the temporary memory and displayed on the basis of the structure of the seat arrangement through the display unit 50.

In addition, the control unit 40 collects the information of the seat belt switch 20, detects the current state of the seating personnel B of the seat belt, and then displays it on the display unit 50 based on the structure of the seat arrangement (S102). ).

Thereafter, the passengers A and the seat belt wearer B are compared to determine whether they match each other (S103), and if the passengers A and the seatbelt wearer B do not coincide with each other, the emergency lamp is turned on. At the same time and transmits a warning sound requiring the seat belt (S104).

Accordingly, the driver checks the position of the occupant displayed on the basis of the structure of the seat arrangement and the position of the occupant who does not wear the seat belt to induce the seat belt of the occupant.

If it is determined in step S103 that the occupant A and the seatbelt B of the seat belt are identical to each other, it is determined whether the door providing the passenger's riding and getting off by reading the information of the door switch 30 is opened. It judges (S105) (S106).

When it is determined that the door is open, the alarm lamp for opening the door is turned on and an alarm sound for the door opening is sent (S107).

 However, if it is determined that the door is closed, the control unit 40 controls the switch 60 to connect the communication line between the immobilizer 70 and the ECU 80 (S108), so that the engine can be started by the ignition key. It is maintained at (S109).

In the above description, only the start of the engine is controlled. However, the engine may need to be maintained depending on the driving conditions (for example, operation of the heater in the winter season or operation of the air conditioner in the summer season). The method of forcibly controlling the running of the vehicle by disabling the brake release can also be easily invented by those skilled in the art from the foregoing description, and this case is included in the scope of the present invention.

Therefore, the engine can be started only when the seat belt is worn by the occupant and the door is closed, thereby providing stability of a small commercial bus that is operated for commuting or school attendance.

As described above, the small commercial bus according to the present invention enables the engine to be started only when the safety of the occupants is secured, thereby providing stability and reliability in the operation of the vehicle.

Claims (3)

At least two piezoelectric sensors mounted on each seat of the vehicle to switch the weight of the occupant to detect whether the occupant is present (ride); A seat belt switch which switches contacts according to whether the seat belt is worn by the occupant and detects information about the seat belt switch; A door switch detecting information of whether the door providing the passenger's riding and unloading is opened or closed; The number of occupants is identified by the information of the piezoelectric sensor, the seatbelt switch is detected by the information of the seatbelt switch, and when the seatbelt is confirmed to be worn by all the occupants, the information on the door switch indicates whether the door is normally closed. A control unit for controlling an output of an alarm when the door is in an open state and controlling the engine to be enabled when it is determined that the door is normally closed; A display unit for displaying occupant information and information on whether the occupant wears the seat belt according to a signal of the controller based on a seat arrangement structure; And a switch for controlling an engine start by interrupting a communication line between the immobilizer and the ECU by switching the contact point by the signal of the control unit. Detecting the occupant with the information of the piezoelectric sensor; Detecting whether the seat belt of the occupant is worn by the information of the seat belt switch; Outputting an alarm to induce a seatbelt wearing by the occupant when the occupant and the seatbelt are inconsistent, and detecting whether the occupant is seated by the information of the door switch when the occupant is seated with the seatbelt; If the door is open, it outputs an alarm, and if it detects a stable closing of the door, it connects the communication line between the immobilizer and the ECU and maintains the engine in a ready state. Way. The method of claim 2, The detected information of the occupants and information about the seat belt wearing is displayed on the display unit based on the seat arrangement structure integrated safety device control method for a small commercial bus.

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