KR19980022917A - Door lock inspection device of automobile - Google Patents

Abstract

The present invention relates to an apparatus for checking a door lock of a vehicle, wherein the actuator driver 20 is operated according to the switching state of the door lock / unlock switch 10 through the key operation of the door key to receive the battery power B +. In the door lock device of a vehicle for driving a plurality of actuators (30A to 30D) to lock or unlock the door, the door lock detection means for detecting whether the plurality of actuators (30A to 30D) is driven to lock the door (40) and door lock determining means (42) for determining whether the entire door is locked by comparing signals applied from the door lock detecting means (40), the determination result and the door lock / unlock switch (10). Alarm setting means (44) for setting the alarm by receiving a signal according to the lock switching of the alarm, alarm driving means (46) for applying the driving power for the alarm when the alarm setting of the alarm setting means (44) And an alarm means 48 for generating an alarm by receiving the driving power supplied from the alarm drive means 46. When the door key is operated to lock the door of the vehicle, a complete lock of the entire door is provided. If this is not done, an alarm sounds to inform the driver, thereby reducing the inconvenience of having to recheck the door lock by one or two malfunctions of the door lock device.

Description

Door lock inspection device of automobile

The present invention relates to a door lock checking device for a vehicle, and more particularly, to a door of an automobile to alert the door when the door is not completely locked when the door lock is performed by the door lock device for maintaining the door in a closed state. It relates to a lock check device.

In general, in the door lock device used in automobiles, when the door key is inserted into the key cylinder of the door and the key is operated, four actuators are driven simultaneously to lock or unlock the four doors. As shown in Fig. 1, the door lock device includes a door lock / unlock switch 10 which is connected to a lock terminal and an unlock lock terminal on the key cylinder side and switched according to the operation state of the door key. In accordance with the switching operation of the lock / unlock switch 10, the first and second relay switches 22 and 23 which receive the driving pulse from the pulse generator 10 are switched to operate the actuator for the lock / unlock of the door. The actuator drive part 20 for driving 30A-30D is provided.

According to the door lock device having such a configuration, the first and second relay switches 22 and 23 of the actuator driving unit 20 are provided when the driver inserts the door key into the key cylinder to key the door to unlock or lock the door. Is switched for a predetermined time depending on the application state of the driving pulse from the pulse generator 21, the actuator 30A to 30D, the battery power during the time that the relay switch 22 or relay switch 23 is switched operation It is driven by (B +) to unlock or lock the door.

However, in the door lock device of such a vehicle, when a door operation is performed by operating a door key, all doors (four doors in a car) provided in the vehicle are not completely locked, for example, a door that is frequently broken or malfunctioned. Due to the lock, the driver is required to check the locked state of the door again, which causes inconvenience.

Accordingly, the present invention has been made in view of the above circumstances, and when the door key is operated to lock the door of the vehicle, the lock device of the door is properly operated to check whether the door is completely locked. It is an object of the present invention to provide a door lock checking device for a vehicle to generate an alarm sound when the lock is not completely locked.

According to a preferred embodiment of the present invention to achieve the above object, according to the switching state of the door lock / unlock lock switch through the key operation of the door key is operated by a plurality of actuators are operated by receiving battery power In the door lock device of a vehicle for locking or unlocking a door, the door lock detection means for detecting whether the door is locked by driving the plurality of actuators and the signal applied from the door lock detection means Door lock determining means for determining whether all doors are locked, alarm setting means for setting an alarm by receiving a signal according to the determination result and the lock switching of the door lock / unlock switch, and when setting an alarm of the alarm setting means. Alarm driving means for applying a driving power for an alarm, and Provided is a door lock inspection apparatus for a vehicle including an alarm means for generating an alarm by receiving a driving power to be applied.

Preferably, the door lock detecting means comprises a plurality of first to fourth limit switches that switch operation by detecting a state in which the lock device of each door is operated to the locked position.

In addition, the door lock determining means is composed of a NAND GATE for determining the state of the door by receiving a switching signal applied from each limit switch of the door lock detecting means by inverse logical multiplication, the alarm setting means is And an AND gate for receiving the output signal according to the determination result of the door lock determining means and the switching signal to the locked state of the door lock / unlock switch as an input signal.

In the present invention made as described above, when the door lock / unlock switch is switched to the locked state by inserting the door key into the key cylinder to lock the door of the vehicle, whether the entire plurality of door actuators are driven. If a single actuator is not driven, an alarm sounds.

1 is a view showing a circuit configuration of a door lock device of a typical vehicle;

2 is a view showing an example in which the door lock inspection device of the vehicle according to an embodiment of the present invention is applied to the auto door locking device.

Explanation of symbols on the main parts of the drawings

10: door lock / unlock switch, 20: actuator drive unit,

30A to 30D: actuator, 40: door lock detection unit,

42: door lock plate, 44: alarm setting unit,

46: alarm drive unit 48: alarm unit.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

2 is a view showing the circuit configuration of the door lock inspection apparatus of the vehicle according to the present invention, reference numeral 10 denotes a door for switching operation to lock or unlock the door of the vehicle through the key operation by inserting the cylinder of the door key. Indicates the lock / unlock switch.

Further, reference numeral 20 denotes an actuator driver for driving the lock / unlock of the door according to the switching operation of the door lock / unlock switch 10, and the actuator driver 20 is the door lock / unlock. When the pulse generator 21 which applies the driving pulse according to the switching operation of the lock switch 10 and the door lock / unlock switch 10 are connected to the lock terminal, the driving pulse signal is applied and operated for a predetermined time. When the first relay switch 22 and the door lock / unlock switch 10 are connected to the unlock terminal, the first relay switch 22 and the door lock / unlock switch 10 are configured as a second relay switch 23 which is operated for a predetermined time by receiving the driving pulse.

Reference numerals 30A to 30D denote actuators for locking or unlocking the door according to a driving signal applied by the relay switches 22 and 23, and the first relay switch 22 switches. When the power is supplied, the actuators 30A to 30D are driven in the forward direction to lock the door. However, when the second relay switch 23 is supplied with power, the actuators 30A to 30D are reversed. It is driven to unlock the door.

Further, reference numeral 40 denotes a door lock detection unit for detecting the lock state of a plurality of doors, for example, four doors, and includes a door lock member (ie, an operation member directly operated for the door lock) provided in the lock device of each door. Of the first to fourth limit switches 40A to 40D and the first to fourth limit switches 40A to 4OD, respectively installed on the door lock operating position side of the door) and switched according to the operation of the door lock member to the lock position. Resistors R1 to R4 are respectively provided at the output terminals of the "

Also, reference numeral 42 receives a switching signal corresponding to the state of four doors applied through the resistors R1 to R4 from each of the limit switches 40A to 40D of the door lock detecting unit 40. The door lock judging unit which judges whether the state is locked or unlocked shows an inverse logic process so as to indicate a high level output signal when at least one electrical signal among four input switching signals indicates a low level. It consists of NAND GATE.

Further, reference numeral 44 denotes an output signal according to the determination result of the door lock determining unit 42 and a switching signal to the locked state of the door lock / unlock switch 10 as an input signal, and is then logically processed. In the case where the alarm setting unit is displayed, the determination result of the door lock determining unit 42 has a high level signal and a high level signal is applied when the door lock / unlock switch 10 is switched to the locked state. A high level output signal is applied only to the door lock / unlock switch 10 when the door lock / unlock switch 10 is in an unlocked state or when the entire door lock device is completely driven. When the low level output signal is applied, the alarm setting unit 44 is composed of an AND gate that performs an AND operation to apply the low level output signal.

Further, reference numeral 46 denotes an alarm driver which is driven according to the output signal of the alarm setting unit 44 to apply driving power to the alarm unit 48 which will be described later, and indicates an output signal of the alarm setting unit 44. When the input signal has a high level electric potential through the resistor R5 and the input signal has a high level potential, the power supply B + connected to the collector terminal is connected as the collector terminal and the emitter terminal are conducted. The power supply B + is applied to the alarm unit 48 connected in parallel with the resistor R6 via the resistor R7 by the resistor R6 applied to the emitter stage and connected to the emitter stage.

In addition, the reference sign 48 is made of, for example, an alarm buzzer that generates an alarm by receiving the driving power from the alarm driving unit 46 to generate an alarm to inform the driver that the complete lock state of the entire door has not been achieved. Indicates an alarm that is lit for alarm.

Hereinafter, the operation of the present invention made as described above will be described in detail with reference to FIG.

First, when the door lock / unlock switch 10 is switched to the locked state as the door key is inserted into the key cylinder to lock the door of the vehicle, the driving pulse from the pulse generator 21 is changed according to the switching operation. Is applied so that the relay switch 22 is switched on, and a positive potential is applied to one end of the actuators 30A to 30D connected to the relay switch 22, and the relay switch 23 is switched to the off state. And a negative (-) potential is applied to the other end of the actuators 30A to 30D connected to the relay switch 23.

Accordingly, the door is locked, and when the entire door is completely locked, the first to fourth limit switches 40A to 40D of the door lock detecting unit 40 are switched to the on state so that the door lock judgment unit ( As the 42 applies the low level output signal to the alarm setting unit 44 and the alarm setting unit 44 also applies the low level output signal, the alarm driving unit 46 is not driven. ), No alarm sounds.

However, if any one of the first to fourth limit switches 40A to 40D of the door lock detection unit 40 is not switched to the on state, the door is set by a low level signal applied by the off limit switch. The logical product processing result of the lock decision unit 42 outputs a high level signal.

Accordingly, the alarm setting unit 44 receives the high level output signal of the door lock determining unit 42 and the high level output signal according to the lock state of the door lock / unlock switch 10. As a result, a high level signal is applied as an output signal.

Then, the high level output signal is applied to the base terminal of the transistor TR1 of the alarm driver 46 so that the power supply B + connected to the collector terminal is applied to the alarm unit 48 connected to the emitter terminal. The alarm will sound.

According to the present invention made as described above, when the operation of the door key for locking the door of the vehicle is not complete lock of the entire door is notified to the driver by sounding an alarm, one or two of the door lock device The disadvantage of this is that the operator can relieve the inconvenience of having to recheck the door lock.

Claims (1)

According to the switching state of the door lock / unlock switch 10 through the key operation of the door key, the actuator driving unit 20 is operated to receive a battery power B + and a plurality of actuators 30A to 30D are driven to operate the door. In the door lock device of a vehicle for locking or unlocking, A door lock detecting means 40 comprising a plurality of limit switches corresponding to the plurality of actuators 30A to 30D to detect whether the door is locked by driving the actuators 30A to 30D; Door lock determining means 42 for determining whether the entire door is locked by inverting and logically applying a signal applied from the door lock detecting means 40, Alarm setting means (44) for receiving the signal according to the determination result and the lock switching of the door lock / unlock lock switch 10 and logically multiply to set the alarm or not; An alarm driving means 46 for applying driving power for an alarm when setting an alarm of the alarm setting means 44; And an alarm means (48) for generating an alarm by receiving the driving power supplied from the alarm drive means (46).