JP5016499B2 - Door unlocking device - Google Patents

Description

  The present invention relates to a door unlocking device that includes an automatic door lock mechanism that automatically locks a door when a traveling speed exceeds a predetermined speed, and forcibly releases the door lock state manually.

  In recent years, various automatic door lock mechanisms for improving vehicle safety have been proposed.

  For example, Patent Document 1 discloses a door lock switch that outputs a signal in response to selection of whether to lock or unlock a plurality of doors, a vehicle speed sensor that detects the traveling speed of a vehicle, The door lock actuator for unlocking and the operation of the door lock actuator are controlled according to the signal from the door lock switch, and a plurality of doors are locked when the vehicle speed exceeds a predetermined value based on the vehicle speed signal from the vehicle speed sensor. A controller that controls the door lock actuator, an auto / manual changeover switch that is connected between the vehicle speed sensor and the controller and can manually select whether or not to supply a vehicle speed signal from the vehicle speed sensor to the controller, There is disclosed a vehicle door lock device comprising:

  On the other hand, since the door lock by such an automatic door lock mechanism may be an obstacle to quick rescue when an accident occurs, manual operation from the inside of the car is detected when a rear-end collision is detected. There has also been proposed a vehicular locking device that can be unlocked by the above (see, for example, Patent Document 2).

In addition, as a method of releasing the automatic lock, when the parking position of the transmission shift lever or parking brake on is detected, or when both the parking position of the shift lever and parking brake on are detected, the stop state is recognized. An automatic door lock device that outputs an unlock signal to the door lock control device has also been proposed (see, for example, Patent Document 3).
Japanese Patent Laid-Open No. 05-86763 JP 2007-77774 A Japanese Patent Laid-Open No. 08-218712

  As described above, in a vehicle equipped with an automatic door lock mechanism that automatically locks the door when the traveling speed exceeds a preset predetermined speed, the manual release operation of the automatic door lock is the minimum necessary in the event of an accident, etc. The automatic release operation is limited to only when the vehicle is completely stopped and the shift lever is operated to the parking brake position, for example, when it can be determined that the vehicle has stopped reliably. Therefore, it has become inconvenient for the user who is the driver.

  The present invention was devised in view of such circumstances, and an object of the present invention is to secure the safety of the automatic door lock in an automatic door lock mechanism that automatically locks the door when the traveling speed exceeds a predetermined speed. On the other hand, an object of the present invention is to provide a door unlocking device that relaxes the conditions for unlocking the door.

  In order to solve the above problems, the door unlocking device of the present invention includes an automatic door lock mechanism that automatically locks the door when the traveling speed exceeds a predetermined speed, and the door lock state by the automatic door lock mechanism is maintained. A door unlocking device that is manually and forcibly released, comprising a dedicated unlocking switch operated by a person, and when the unlocking dedicated switch is operated during traveling at the predetermined speed or higher, The automatic door lock mechanism is disabled and the door lock is forcibly released. The fixed time is measured after the release. The door may be automatically locked again by enabling the mechanism. As a result, even if the unlocking switch is accidentally operated while the vehicle is traveling, the door is locked again when, for example, about 1 to 3 seconds have elapsed, so that safety during traveling is secured again. It becomes possible.

  In addition, the door unlocking device of the present invention forcibly releases the door lock by disabling the automatic door lock mechanism when the unlocking dedicated switch is operated during traveling at the predetermined speed or higher. It may be configured to measure the later certain time and maintain the unlocked state by disabling the automatic door lock mechanism as it is when the traveling speed when the certain time has elapsed is equal to or less than the predetermined speed. Good. As a result, even if the unlocking dedicated switch is operated while the vehicle is running, the door unlocking state remains unchanged if the vehicle is almost stopped when a time of about 1 to 3 seconds elapses. Therefore, it is not necessary to operate the automatic door lock release button after the vehicle stops, and the door can be opened immediately.

  According to the present invention, even when the unlocking dedicated switch is erroneously operated while the vehicle is traveling, the door is locked again after a predetermined time has elapsed. The safety inside can be secured again.

  According to the present invention, even when the unlocking dedicated switch is operated while the vehicle is running, the door unlocking state is maintained as long as the vehicle almost stops when a predetermined time has elapsed. Therefore, it is not necessary to operate the automatic door lock release button after the vehicle stops, and the door can be opened immediately.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an electrical configuration of a door unlocking apparatus according to the present embodiment.

  This door unlocking device includes a conventional door lock system including a door lock switch 10, a vehicle speed sensor 11, an auto / manual changeover switch 12, a door lock control unit 20, and a door lock mechanism unit 30. The auto / manual changeover switch 12 is provided between the vehicle speed sensor 11 and the door lock control unit 20.

  When the lock / unlock signal is received from the door lock switch 10 in a state where the auto / manual changeover switch 12 is switched to the manual side (for example, a switch-off state), the door lock control unit 20 receives and receives the lock signal. By outputting a signal or an unlock signal to the door lock mechanism 30, the door is locked or unlocked.

  Further, when the auto / manual changeover switch 12 is switched to the auto side (for example, a switch-on state), the door lock control unit 20 starts the vehicle and the vehicle speed exceeds a predetermined speed, for example, 20 km / h. The door lock control unit 20 detects this by a vehicle speed signal (for example, 19 hHz) from the vehicle speed sensor 11 and outputs a lock signal to the door lock mechanism unit 30 to perform lock control (centralized door lock control) for all doors. To do. Thereby, even when the driver forgets to turn on the door lock switch 10, the door is automatically locked when the predetermined speed is exceeded, so that safety during traveling is ensured.

  Here, in the present embodiment, in the door lock system having such a configuration, an L terminal line 13, a shift position signal line 14, and an unlocking dedicated switch 15 are further connected to the door lock control unit 20. The L terminal line 13 is a line that changes in voltage to 12V when the engine (not shown) moves and to 0V when the engine stops. The shift position signal line 14 detects that the voltage of the P range changes from 0 V to 12 V (or 12 V to 0 V) when the shift position (AT shift lever) is switched from the D range to the P range. It is a signal line.

  The unlocking dedicated switch 15 is connected to the P position on the board. By depressing the unlocking dedicated switch 15, the P position falls to the ground only during the depression (that is, from 12V to 0V). Change). Accordingly, by depressing the unlocking dedicated switch 15, the AT shift lever is put into the parking P (P range) in a pseudo manner, so that the central door lock control is released. The unlocking switch 15 is preferably provided at an arbitrary place such as the front panel of the vehicle that is easy for the driver to operate. Further, if an illumination such as an LED is provided on the unlocking switch 15, the position of the unlocking switch 15 can be visually recognized even in the dark such as at night by turning on the LED.

  Next, the door lock control operation when the auto / manual changeover switch 12 is turned on in the door unlocking device having the above configuration will be described with reference to the flowchart shown in FIG.

  First, the door lock switch 10 is not operated, and the auto / manual change-over switch 12 is switched to the auto side to be switched on (step S1). Next, after starting the engine with a shift lever (not shown) in the P position, the shift lever is switched to the D position, and the brake pedal is switched to the accelerator pedal to start running (step S2).

  Accordingly, when the vehicle starts and the vehicle speed exceeds a predetermined speed, for example, 20 km / h, the door lock control unit 20 detects this by a vehicle speed signal (for example, 19 hHz) from the vehicle speed sensor 11 (Yes in step S3). If it is determined that this is the case, the centralized door lock control for locking all the doors is performed by outputting a lock signal to the door lock mechanism 30 (step S4). Then, the door lock control unit 20 monitors the states of the L terminal line 13, the shift position signal line 14, and the unlocking dedicated switch 15 (step S5, step S6, step S7).

  When the engine is stopped due to a traveling accident or the like, the input voltage from the L terminal line 13 changes from 12 V to 0 V. Therefore, the door lock control unit 20 changes the input voltage of the L terminal line 13 (that is, H When a change from L to L is detected (Yes in step S5), an unlock signal is output to the door lock mechanism 30 to perform door unlock control (step S8). As a result, when the engine is stopped due to an accident or the like, the door is automatically unlocked, so that it is easy to perform subsequent evacuation or rescue activities.

  When the shift position (AT shift lever) is switched from the D range to the P range after the vehicle is completely stopped, the shift position signal line 14 is changed from 0V to 12V (that is, L level to H level) or 12V to 0V. Therefore, the door lock control unit 20 changes the input voltage of the shift position signal line 14 (that is, change from L to H, or H to L). When the change is detected (Yes in step S6), an unlock signal is output to the door lock mechanism 30 to perform door unlock control (step S8). Thereby, when the vehicle is parked and stopped, the door unlocking is performed in a state where the vehicle is completely stopped, so that it is possible to get off safely. Further, it is possible to save the trouble of performing the switch operation (door unlock operation) of the vehicle after the vehicle stops.

  Further, when the driver or the like operates the unlocking dedicated switch 15 during traveling (when it is determined Yes in step S7), the P position falls to the ground, and the AT shift lever is artificially moved to the P range (parking P). The door lock control unit 20 that has received the operation signal outputs an unlock signal to the door lock mechanism unit 30 and performs door unlock control (step S9). That is, even in the central door lock control state in which the auto / manual changeover switch 12 is in the on state, this is invalidated, and the operation of the unlocking dedicated switch 15 is given priority.

  At this time, the door lock control unit 20 detects the current vehicle speed based on the vehicle speed signal from the vehicle speed sensor 11, and checks whether or not the vehicle speed is equal to or higher than a predetermined speed (step S10). As a result, when the current vehicle speed is equal to or higher than the predetermined speed (when determined to be Yes in step S10), measurement at a certain time (for example, an arbitrary time between 1 to 3 seconds) is performed at that time. Start (step S11). The measurement of this fixed time is performed by an internal timer circuit (not shown). If the current vehicle speed is not less than or equal to the predetermined speed even after a certain period of time has elapsed (Yes in step S10, Yes in step S11), the process returns to step S4 and the concentration door that has been invalidated. The lock control is enabled again and centralized door lock control is performed. That is, the door lock control unit 20 outputs a lock signal to the door lock mechanism unit 30. As a result, even if the unlock switch 15 is erroneously operated while the vehicle is running, all doors are locked again when, for example, about 1 to 3 seconds elapses. It can be secured.

  In step S10 and step S11, if the vehicle speed is equal to or lower than the predetermined speed before a predetermined time elapses (when it is determined No in step S10), the door unlock state is maintained as it is. The process ends. That is, even when the unlocking dedicated switch 15 is operated while the vehicle is running, the door unlocking state remains unchanged if the vehicle almost stops when, for example, about 1 to 3 seconds have elapsed. Therefore, it is not necessary to operate the automatic door lock release button after the vehicle stops, and the door can be opened immediately. Further, when the passenger is alighted from the vehicle, the door can be unlocked only by operating the unlock switch 15 even if the shift position remains in the D range.

It is a block diagram which shows the electric constitution of the door unlocking apparatus of this invention. 4 is a flowchart for explaining a door lock control operation when an auto / manual changeover switch is turned on in the door unlocking device of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door lock switch 11 Vehicle speed sensor 12 Auto / manual changeover switch 13 L terminal line 14 Shift position signal line 15 Unlock exclusive switch 20 Door lock control part 30 Door lock mechanism part

Claims (2)

A door unlock device that includes an automatic door lock mechanism that automatically locks the door when the traveling speed exceeds a preset predetermined speed, and that manually releases the door lock state by the automatic door lock mechanism,
It has an unlock switch that is operated by a person.
When the unlocking dedicated switch is operated while traveling at a speed higher than the predetermined speed, the automatic door lock mechanism is disabled and the door lock is forcibly released. A door unlocking device that automatically locks the door again by enabling the automatic door lock mechanism when the vehicle continues to travel at the predetermined speed or more even after a lapse of time.   2. The door unlocking device according to claim 1, wherein when the traveling speed when the predetermined time has elapsed is equal to or less than the predetermined speed, the automatic door lock mechanism is disabled as it is and the unlocked state of the door is maintained. A door unlocking device.

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