KR101493608B1 - Parking state lifting device and parking state lifting method - Google Patents

Abstract

A parked-state releasing device of the present invention includes an MOC (Motor-On-Caliper) device applying a braking force when parking a vehicle; a parked-state release operating unit enabling a driver to instruct an emergency parked-state release; an MOC power switch switching a power supply to the MOC device; a relay physically moving a contact point of the MOC power switch; and a timer/operating unit operating a relay after counting predetermined delayed time at the timing of operating the parked-state release operating unit. The present invention can obtain an effect of releasing the parked state of the vehicle stably even in an emergency situation and/or an effect of preventing malfunctions due to errors while releasing the parked state of the vehicle stably even in an emergency situation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parking state releasing device and a parking state releasing device,

The present invention relates to a parking state releasing apparatus and a parking state releasing method for a vehicle to which an electronic parking brake is applied.

Recently, the development and application of the additional function using the electronically controlled brake controller (Brake Controller) technology have been expanded. Among these trends, it is known that the vehicle can be prevented from being thrown from the hill by utilizing the function of maintaining the braking of the vehicle according to the will of the driver during low speed operation (Hill Start Assist), the brake pedal operation There have been developed systems that allow deceleration and acceleration (Traffic Jam Assist) only by manipulation of an Excel pedal.

In order to apply the above-described active autonomous braking function, a method of simultaneously operating an electronic parking brake (hereinafter referred to as an EPB) for electronically controlling the driving of a parking brake is applied .

The electronically controlled parking brake system not only operates the parking brake system in the manual mode through a simple switch operation but also links with various ECU (Engine Control Unit), TCU (Transmission Control Unit) and ESP (Electronic Stability Program) The parking brake is activated or deactivated automatically.

In the electronically controlled parking brake system, the parking brake can be activated and deactivated by the lock / unlock switch in the manual mode. In the automatic mode, when the vehicle is stopped or when the starting is turned off, It is released when the pedal is operated.

The functions of the electronically controlled parking brake system include automatic deflection of the braking force due to deflection of the cable and pad wear due to braking force monitoring, can not be released only by the lock / unlock switch operation in the start-off state, And forced release using the same.

The use of the EPB provides the driver with convenience in various situations, but in a state in which the electronic parking brake is autonomously engaged by the ECU or the like, the state in which the electronic parking brake is engaged in the ECU abnormality or other unpredictable situation may not be released There is a risk.

For example, with the increase in the rate of EPB (Electric Parking Brake) system installation, ECU failure can not move the vehicle when the EPB ECU malfunctions in a parking area such as a special area (mountain, desert area).

Also, since integrated ECU (ESC + MOC) products have a high probability of ECU failure, EPB release devices are required in emergency situations.

Especially, the emergency release device applied to the MOC type EPB must use a special tool for separating the actuator of the MOC caliper from the lower part of the vehicle, and it is very difficult for the driver in the emergency situation Day. In this case, the MOC connector is removed from the repair shop, and the MOC motor is energized to release the parking state.

Korean Patent Publication No. 10-2013-0040356

The present invention intends to provide a parking state releasing apparatus or method by which a driver can release a parking state of a vehicle in an emergency situation.

Another object of the present invention is to provide a parking state releasing apparatus or method capable of releasing a parked state of a vehicle stably in an emergency situation while being manufactured at low cost.

A method of releasing a parking state according to an embodiment of the present invention includes: determining an abnormal situation in a parking state of a vehicle MOC; Notifying the driver of the abnormal situation; Receiving an emergency release command of the driver; Counting a predetermined delay time when the emergency release command is input; And releasing the parking state of the MOC.

In the parking state releasing step of the MOC, a relay for physically moving a contact of a switch connecting a driving power source to the MOC may be operated.

In the parking state releasing step of the MOC, the contact may move to connect the - line of the MOC to the + line of the battery and the + line of the MOC to the line of the battery.

Here, in the step of counting the delay time, the time for storing the capacitor for operating the relay can be counted.

In the step of counting the delay time, if the input state of the emergency release command is released before the delay time is counted, the parking state canceling process can be stopped.

Here, the abnormal situation may include a failure state of the ECU that controls the operation of the MOC.

Here, in the step of notifying the abnormal situation, the abnormal situation can be displayed on the driver's display installed in the vehicle.

According to another aspect of the present invention, there is provided a parking state releasing apparatus comprising: a motor-on-caliper (MOC) apparatus for applying a braking force when parking a vehicle; A parking release operation portion in which the driver can issue an emergency parking release command; A MOC power switch for switching power supply to the MOC device; A relay for physically moving a contact of the MOC power switch; And a timer / driver unit for counting a predetermined delay time at the time of operation of the parking release operation unit and then operating the relay.

Here, the timer / driver may count a time for storing the driving capacitor of the relay.

Here, the parking release operation portion is a push-return button for automatically returning to the off state when the pressing operation of the driver disappears, and the timer / driving portion counts the time during which the push- .

Here, a display device for displaying information on the state of the vehicle to the driver; And an MOC ECU for controlling the operation of the MOC device and determining an abnormal situation and displaying the MOC ECU on the display device.

Here, the abnormal situation may include a failure state of the MOC ECU.

Here, the contact of the MOC power switch may be moved to connect the - line of the MOC to the + line of the battery, and connect the + line of the MOC to the line of the battery.

Here, the parking release operation portion may be provided on the rear side of the vehicle.

The parking-station releasing device or method of the present invention having the above-described configuration has an advantage that the driver can release the parking state of the vehicle in an emergency situation.

Alternatively, the present invention is advantageous in that the parking state of the vehicle can be reliably released in an emergency situation while being manufactured at low cost.

Alternatively, the present invention has an advantage that it is possible to reliably release the parking state of the vehicle in an emergency situation, and to prevent a malfunction caused by a mistake.

1 is a conceptual diagram showing a MOC control structure of a vehicle to which an MOC is applied.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parking status canceling apparatus,
FIG. 3 is a block diagram illustrating an embodiment of a parking state release device that may be applied to FIG. 2;
FIG. 4 is a flowchart illustrating a parking state releasing method according to an embodiment of the present invention; FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a view showing an MOC control structure of a vehicle to which an MOC is applied. In the illustrated vehicle, the MOC is mounted only on the rear wheel, and the rear wheel is locked when parking. The illustrated vehicle is provided with an MOC control device 20 for controlling the operation of the MOC which is charged to the battery 30 of the vehicle and passed through the fuse box 40 of the vehicle The power of the MOC is transmitted to the MOC and the operation of the MOC can be controlled by controlling the supplied power.

In the illustrated implementation, for precise and accurate operation of the MOC, the MOC controller 20 is connected to the MOC controller 20 for each MOC by + and - lines, but in other implementations, the chassis ground may be used and the line may be omitted.

The MOC controller 20 autonomously supplies driving power to the MOC when the driver decides that the transmission lever is in the parking state or performs the parking state or the slope prevention function, And the braking force is applied to the rear wheel of the vehicle. When the driving power is supplied to the MOC, the built-in motor is operated to move the brake caliper interlocked to lock the rear wheel of the vehicle.

In the case of the vehicle having the illustrated structure, there is no way to release the locked MOC in an abnormal situation such as an accident or failure of the MOC control device, and it becomes difficult to move the abnormal vehicle to a place for quick maintenance.

2 shows a vehicle equipped with a parking state releasing device by MOC according to an embodiment of the present invention.

The illustrated MOC mounting structure of the vehicle and the MOC control structure of the MOC control device 200 are similar to those of the MOC control device of FIG. 1, but include a parking state releasing device according to the present invention on the rear side of the vehicle.

The parking state releasing device 100 may receive a separate power source from the battery of the vehicle and the chassis ground without supplying the MOC driving power to the MOC controller 200 and supply the power to the MOC. And is connected to each of the MOCs by a + line and a line in the same structure as that of the controller 200.

Even if the motor built in the MOC is capable of operating in both directions of locking and unlocking the built-in caliper, the parking state releasing device can perform only the direction of releasing the built-in caliper.

Fig. 3 shows an embodiment of a parking state release device which can be applied to Fig. The illustrated parking state releasing device includes a parking release operation portion 110 in which the driver can issue an emergency parking release command; A MOC power switch 160 for switching power supply to the MOC device; A relay 140 for physically moving the contact of the MOC power switch 160; And a timer / driver 120 for counting a predetermined time at an operation time of the parking release operation unit 110 and then operating the relay.

The parking release operation portion 110 may be installed on the rear side (e.g., a trunk) of the vehicle so as not to malfunction due to carelessness of the driver. The parking release operation portion 110 operates in a pressing operation of the driver in an emergency situation, And can be implemented as a push and return button for returning to an off state.

The MOC power switch 160 connects the positive line of the vehicle battery 30 to the negative line of the MOC 10 and the negative line of the vehicle battery 30 to the MOC 10 in the switch- Connect to the + line of. Accordingly, in the on state of the MOC power switch 160, the MOC built-in motor is driven in the direction to unlock the calipers.

The MOC power switch 160 can connect the positive line of the vehicle battery 30 to the negative line of the MOC 10 and the negative line of the vehicle battery 30 to the positive line of the MOC 10 .

The MOC power switch 160 may have a structure in which the relay 140 physically moves the contact points of the MOC power switch 160.

The relay 140 may include a capacitor for supplying instantaneous power necessary for stable and reliable operation of the relay.

In this case, the timer / driver 120 counts a time for storing the capacitor for operating the relay, and operates the relay 140 when the counting of the storage time for the capacitor is completed.

As described above, since the timer / driver 120 for counting the capacitor power storage time for the relay 140 is provided as the means for performing the parking release of the MOC, reliable and stable operation can be achieved at a lower production cost So that it is possible to implement a parking state releasing device capable of ensuring the safety of the vehicle.

On the other hand, the delay time may be given to confirm the driver's intention to release the parking. In this case, for the parking release operation unit 110 implemented with the push / return button described above, the time for which the driver holds the push operation is counted as the delay time. For example, when the driver depresses the push-return button for about three seconds, the delay time elapses and the parking release operation is performed. Accordingly, when the driver operates the parking release operation portion 110 by mistake, Can be prevented from being released.

The MOC power switch 160 may be the same as or different from the switch used when the MOC controller 200 controls the operation of the MOC 10. [ In the former case, there is an advantage that the cost of the entire vehicle can be saved. In the latter case, there is an advantage that the emergency parking state releasing device according to the present invention can be added while minimizing the change of the structure of the existing vehicle.

It is preferable that the parking state releasing device (particularly, the parking release operation portion 110) of FIG. 3 is disposed at a place where the passengers inside the vehicle can not easily reach, so that parking unlocking does not occur unintentionally due to children's play or the like.

For example, it is possible to mount the parking state release device according to the present invention in a simple form having a switch contact by branching the MOC motor in the vehicle trunk by a +/- short cable.

4 illustrates a method of releasing a parking state according to an embodiment of the present invention. The illustrated parking state releasing method includes a step S120 of judging an abnormal state in the parking state (S110) of the vehicle MOC; (S130) of notifying the driver of the abnormal situation; Receiving an emergency release command of the driver (S140); Counting a predetermined delay time (S150); And releasing the parking state of the MOC (S160).

The step S110 may be performed by a general MOC locking algorithm by the MOC controller 200 of FIG.

The step S120 may be performed by the MOC controller 200 and / or the main ECU of the vehicle of FIG. For example, the main ECU of the vehicle may determine that the MOC control system 200 is abnormal if a voltage exceeding the allowable range is detected by the MOC control device 200, or communication according to the protocol is interrupted.

In step S130, the control means such as the main ECU of the vehicle may perform visual notification to the driver's display installed in the vehicle and / or perform audible notification by a speaker or buzzer installed in the vehicle.

In the step S140, it is possible to perform the operation in which the driver operates the operating means (the parking release operation portion 110 in Fig. 3) separately installed in the vehicle, in such a manner that the parking release device of Fig. 2 recognizes the operation. In the absence of an emergency release command from the driver, it may be desirable to maintain the MOC lock, thus maintaining the MOC lock.

If the driver's emergency release command is recognized in step S140, the power accumulation time for releasing the predetermined MOC can be counted in step S150. According to the execution of step S150, the drive capacitor for the relay 140 of FIG. 2 can be sufficiently charged. The step S150 may be performed in a digital manner in which the counter provided in the timer / driver 120 of the parking state releasing apparatus of FIG. 2 is increased to a predetermined count value according to a predetermined clock, . On the other hand, an analog counting structure that uses the time during which electrical energy is accumulated in an analog circuit element having a predetermined time constant can reduce manufacturing costs.

Alternatively, if the input state of the emergency release command is released before the delay time is counted, the parking state release process may be stopped and terminated in step S150 of another implementation. In this embodiment, the delay time is given for the driver's intention to unlock the parking lot. In this case, the time counted by the driver after the start of the pushing operation on the push-return button is held as the delay time, and the parking release operation is performed after the delay time elapses. This prevents the parking state from being released when the driver operates the push-return button for releasing the parking state by mistake.

In step S160, the timer / driver 120 of the parking state releasing apparatus of FIG. 2 may be operated by operating the relay 140. Accordingly, the contacts of the MOC power switch 160 of FIG. 3 are moved to connect the - line of each MOC to the + line of the battery and the + line of each MOC to the line of the battery. Thereby, the motor incorporated in each MOC moves in the direction to unlock the caliper, and the parking state of the vehicle is released.

It should be noted that the above-described embodiments are intended to be illustrative, not limiting. In addition, it will be understood by those of ordinary skill in the art that various embodiments are possible within the scope of the technical idea of the present invention.

100: parking state release device
110:
120: Timer driver
140: Relay
160: MOC power switch

Claims (14)

Determining an abnormal situation in a parking state of the vehicle MOC;
Notifying the driver of the abnormal situation;
Receiving an emergency release command of the driver;
Counting a predetermined delay time when the emergency release command is input; And
Releasing the parking state of the MOC
Gt;
The method according to claim 1,
Wherein the relay for physically moving the contact of the switch connecting the driving power source to the MOC is operated in the parking state releasing step of the MOC.
3. The method of claim 2,
In the parking state releasing step of the MOC,
Wherein the contact moves to connect the - line of the MOC to the + line of the battery and the + line of the MOC to the - line of the battery.
3. The method of claim 2,
Wherein the step of counting the delay time counts the time for storing the capacitor for operating the relay.
The method according to claim 1,
In the step of counting the delay time,
Wherein the parking state releasing process is stopped when the input state of the emergency release command is released before the delay time is counted.
The method according to claim 1,
Wherein the abnormal situation includes a fault state of the ECU that controls the operation of the MOC.
The method according to claim 1,
Wherein the step of notifying the abnormal situation displays an abnormal situation on a driver's display provided in the vehicle.
A motor-on-caliper (MOC) device for giving a braking force when parking the vehicle;
A parking release operation portion that can instruct the driver to release the emergency parking through the push and return button and automatically return to the off state when the pressing operation of the driver disappears;
A MOC power switch for switching power supply to the MOC device;
A timer / driving unit for counting a time at which the push / return button is held at the time of operation of the parking release operation unit and then operating the relay;
And the parking state releasing device.
9. The method of claim 8,
Wherein the timer / driver unit counts a time for storing the driving capacitor of the relay.
delete 9. The method of claim 8,
A display device for displaying information on the state of the vehicle to the driver; And
An MOC ECU for controlling the operation of the MOC device, determining an abnormal situation, and displaying the MOC ECU on the display device,
Further comprising:
12. The method of claim 11,
Wherein the abnormal situation includes a failure state of the MOC ECU.
9. The method of claim 8,
The contact of the MOC power switch is moved to connect the - line of the MOC to the + line of the battery and connect the + line of the MOC to the line of the battery.
9. The method of claim 8,
Wherein the parking release operation portion is provided on the rear side of the vehicle.

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