KR101558814B1 - Apparatus of active emergemcy deceleration and method thereof - Google Patents

Abstract

The present invention relates to an active emergency deceleration device and a method to accomplish the same. The active emergency deceleration method according to the present invention comprises: a first determining step (S100) of determining whether a passenger operates an emergency button; a first control step (S200) of controlling a vehicle if the emergency button is determined to be operated in the first determining step (S100); a second determining step (S300) of determining whether a driver operates a reset button within a predetermined reset time after the first control step (S200); and a second control step (S400) of operating a retarder at maximum performance if the driver does not operate the reset button within the predetermined reset time in the second determining step (S300). According to the present invention, the passenger can reduce the speed of the vehicle by actively operating a specific button in an emergency situation. Furthermore, the operation is easily realized in the vehicle since some components are added on the basis of a basic layout of the vehicle.

Description

[0001] APPARATUS OF ACTIVE EMERGEMCY DECELERATION AND METHOD THEREOF [0002]

The present invention relates to an active emergency decelerating apparatus and method, and more particularly, to an active emergency decelerating apparatus and method for enabling a passenger to actively cope with an emergency situation such as an abnormal condition of a driver.

RETARDER is an auxiliary braking device that absorbs some of the mechanical energy to mitigate the fade that occurs when braking on long hills or high speeds in large vehicles. The retarder is generally integrated with the transmission, and the shape varies depending on the manufacturer. As shown in FIG. 1, the retarder is roughly divided into a fluid type retarder, a magnetic type retarder, and the like. The fluid type retarder causes the oil between the rotor and the stator to interfere with the rotation of the rotor, thereby lowering the driving force and generating a braking effect. The magnetic retarder generates a current when the rotor rotates in the magnetic field, and generates a braking effect because the rotor rotates due to the current.

The RETARDER will be installed in large vehicles produced after 2017, in accordance with the Ministry of Land Transport and Traffic Law's strengthened performance standards for auxiliary braking devices for large buses and trucks. Therefore, the safety of large buses and trucks is expected to be strengthened. However, the conventional retarder was operated only by the driver, and the braking method of the passenger was not performed. Therefore, after a first-round collision caused by a driver's carelessness, such as a bus accident occurred on March 19, 2014 in Seoul, passengers find the driver's anomaly, Lt; / RTI > Therefore, it is necessary for the passenger to reduce the speed of the vehicle by using a specific button in an emergency situation such as an abnormal condition of the driver, thereby preventing an accident in advance.

Patent Registration No. 10-0158160 (Aug. 3, 1998)

It is an object of the present invention to provide a separate braking method for a passenger to actively cope with an emergency situation such as an abnormal condition of a driver.

The active emergency deceleration method according to an embodiment of the present invention includes a first determination step (SlOO) for determining whether a passenger has activated an emergency button; A first control step (S200) of controlling the vehicle if it is determined that the emergency button is activated in the first determination step (SlOO); A second determination step (S300) of determining whether the driver has operated the reset button within a predetermined reset time after the first control step (S200); And a second control step (S400) of operating the retarder at maximum performance when the driver does not operate the reset button within a predetermined time in the second determination step (S300).

The active emergency deceleration method may further include a third determination step (S500) of determining whether the driver has operated the reset button after the second control step (S400).

The active emergency deceleration method includes a third control for initializing the vehicle control of the first control step S200 and the second control step S400 when the driver operates the reset button in the third determination step S600 The method further includes the step S600.

The active emergency deceleration method may further include a fourth control step (S700) for determining that the vehicle is not in an emergency situation and controlling the vehicle when the driver operates the reset button in the second determination step (S300) .

The fourth control step (S700) includes an initializing step (S710) of initializing the vehicle control of the first control step (S200).

The fourth control step (S700) includes an emergency button disable step (S720) for preventing the occupant from operating the emergency button for a predetermined disable time.

The first control step S200 includes a deceleration step S210 for decelerating the vehicle by operating the retarder and operating an emergency lamp disposed in front of and behind the vehicle.

The first control step S200 includes a driver warning step S220 in which a buzzer sounds from a speaker installed in a driver's seat.

The first control step S200 includes the step S230 in which the vehicle is not accelerated even if the driver depresses the accelerator pedal.

The active emergency decelerator according to another embodiment of the present invention includes an emergency button unit 100 that a passenger can operate when the driver is in an abnormal state; A reset button unit 200 for allowing the driver to initialize the state of the vehicle when the emergency button unit 100 malfunctions; A control unit 300 for controlling the vehicle by operation of the emergency button unit 100 or the reset button unit 200; A retarder unit 400 capable of decelerating the vehicle speed or stopping the vehicle according to a signal of the control unit 300; And a warning unit 500 for alerting the driver of an alarm according to a signal of the controller 300. [

As described above, according to the present invention, a passenger can actively activate a specific button in an emergency situation, thereby reducing the speed of the vehicle and minimizing accidents. In addition, since some parts are additionally mounted on the basis of the basic layout of the vehicle, realization in a vehicle is easy.

1 is a view for explaining a conventional retarder;
2 is a flowchart of an active emergency deceleration method according to the present invention.
3 is a block diagram of an active emergency decelerator according to the present invention;
4 is a schematic diagram of an active emergency decelerator according to the present invention

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term to describe its invention in the best way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a flowchart of an active emergency deceleration method according to the present invention. Referring to FIG. 2, an active emergency deceleration method according to an embodiment of the present invention includes a first determining step S100, a first controlling step S200, a second determining step S300, and a second controlling step S400. .

In the first determination step (SlOO), it is determined whether the passenger has activated the emergency button. When the passenger recognizes an emergency situation such as an abnormal condition of the driver, the emergency button is used to braking the vehicle. The emergency button has a structure similar to a fire hydrant button concept and has a safety cap to cover the passenger so that the passenger can not malfunction. However, in case of emergency, the safety cap can be broken and the emergency button can be operated. The safety cap may be made of a plastic material.

In the first control step S200, if it is determined that the emergency button is activated in the first determination step S100, the vehicle is controlled. The first control step S200 includes a deceleration step S210, a driver warning step S220, and an acceleration disabled step S230. In the deceleration step S210, the retarder is operated to decelerate the vehicle, and the emergency lights disposed in front of and behind the vehicle are operated. That is, when a passenger recognizes an emergency situation such as a driver's abnormality and activates the emergency button, the retarder is operated to decelerate the vehicle. For example, in the case of a four-stage retarder, the retarder is operated in two stages to allow the retarder to decelerate the vehicle by 33%. In addition, in order to prevent a secondary accident caused by deceleration of the vehicle, emergency lights disposed in front of and behind the vehicle are blinked to recognize an abnormal situation and a corresponding deceleration in the surrounding vehicle.

The driver warning step S220 is a step in which the buzzer sounds from the speaker installed in the driver's seat to warn the driver. It is difficult for the driver to recognize the operation of the emergency button of the passenger while driving, so that the buzzer sounds in the speaker to inform the driver of the operation of the emergency button and the deceleration of the vehicle accordingly.

The step of impossibility of acceleration (S230) is a step of preventing the vehicle from being accelerated even if the driver depresses the accelerator pedal. Generally, in the case of a vehicle equipped with a retarder, the retarder is automatically released when the accelerator pedal is operated after the retarder is operated. However, when the passenger operates the emergency button, Even if the accelerator pedal is depressed and sends an acceleration signal to the engine, the vehicle is decelerated to ignore the accident, thereby preventing a secondary accident in advance.

After the first control step S200, the second determining step S300 determines whether the driver has operated the reset button within a predetermined reset time. For example, in the event that the emergency button is activated by a passenger's accident or mistake, the driver recognizes that the emergency is not an emergency situation and releases the operation of the emergency button in order to perform normal operation. The predetermined reset time can be set by the driver or mechanic, and can be set to, for example, 1 second to 3 seconds.

In the second control step S400, if the driver does not operate the reset button within the preset time in the second determination step S300, the retarder is operated at the maximum performance. If the driver does not operate the reset button within a predetermined time, an emergency situation such as an abnormal condition of the driver has occurred. Therefore, the retarder is operated at a higher number of times than the retarder operation in the first control step (S200) . For example, in the case of a four-stage retarder, the retarder is operated in four stages to allow the retarder to decelerate the vehicle with 100% performance. At this time, as the case of the manual transmission (MTM), the starting can be turned off when the engine is at a high speed, and the engine is operated at low speed (10 km / h or less)

The third determination step S500 determines whether or not the driver has operated the reset button after the second control step S400, and the third control step S600 determines whether the driver has operated the reset button in the third determination step S600 And initializes the vehicle control of the first control step S200 and the second control step S400 when the reset button is operated. If the emergency situation is released such that the driver is recovering from the abnormal state after decelerating the vehicle by operating the retarder at the maximum performance in the second control step (S400), the driver operates the reset button to perform the first control step S200) and the second control step (S400), so as to perform normal operation again.

If the driver operates the reset button in the second determination step (S300), the fourth control step (S700) determines that the vehicle is not in an emergency situation and controls the vehicle. The fourth control step S700 includes an initialization step S710, and an emergency button disablement step S720.

The initializing step (S710) initializes the vehicle control of the first control step (S200). For example, in the event that the emergency button is activated by a passenger's accident or mistake, the driver recognizes that the emergency is not an emergency situation and releases the operation of the emergency button in order to perform normal operation. The emergency button disable step (S720) prevents the occupant from operating the emergency button for a predetermined disable time. As described above, when the emergency button is activated due to mischief or accident of the passenger, the emergency button is disabled for a predetermined period of time to prevent malfunction of the emergency button and distraction of the driver due to the emergency button. The predetermined inactivity time may be set by a driver or a mechanic, and may be set to, for example, one minute to three minutes.

FIG. 3 is a block diagram of an active emergency decelerator according to the present invention, and FIG. 4 is a schematic diagram of an active emergency decelerator according to the present invention. 3 and 4, an active emergency decelerator according to another embodiment of the present invention includes an emergency button unit 100, a reset button unit 200, a control unit 300, a retarder unit 400, (500).

The emergency button unit 100 can be operated by a passenger when the driver is in an abnormal state. The emergency button unit 100 has a structure similar to a fire hydrant button concept, and has a safety cap to cover the cover so that the passenger can not malfunction. However, in case of emergency, the safety cap can be broken and the emergency button can be operated. The safety cap may be made of a plastic material.

The reset button unit 200 allows the driver to reset the state of the vehicle when the emergency button unit 100 malfunctions. That is, for the purpose of canceling the operation of the emergency button, the reset button unit 200 may be disposed on the left wall surface of the crash pad or the driver's seat of the vehicle.

The control unit 300 controls the vehicle by operation of the emergency button unit 100 or the reset button unit 200. The emergency stop button unit 200, the retarder unit 400, the alarm unit 500 and the CAN (emergency stop) unit 500 are connected to the emergency button unit 100, Controller Area Network) to control the vehicle.

The retarder 400 may decelerate the vehicle or stop the vehicle according to the signal of the controller 300. [ The retarder unit 400 serves as an auxiliary brake and is mounted for the purpose of decelerating the vehicle. However, since it is mounted on all large buses and trucks in the future (after 2017), mounting of additional components It is easy to realize the present invention.

The alarm unit 500 alerts the driver by sounding an alarm according to the signal of the controller 300. [ It is difficult for the driver to recognize the operation of the emergency button of the passenger while driving, so that the buzzer sounds in the speaker to inform the driver of the operation of the emergency button and the deceleration of the vehicle accordingly.

Vehicle speed 30 km / h 40 km / h 50 km / h 60 km / h Braking distance
Natural deceleration 60m 110m 170m 270m Retarder
Four-stage use 25m 33m 75m 85m

Table 1 shows the test results of the braking distance of the actual vehicle. In the above test, the travel distance from the accelerator pedal to the deceleration to 10 km / h or less was measured using an ultra-low automatic transmission (ATM) vehicle at a speed of 30 to 60 km / h. According to Table 1 above, it is possible to decelerate to 10 km / h within 100 m even within 60 km / h of vehicle only by using 4 stages of retarder. For reference, in the case of the above-mentioned transmission accident, after the first accident, the car ran at 1138 m and then a second accident occurred. As shown in Table 1, when the present invention is applied, it can be seen that the prevention function against an emergency situation is excellent. In the case of retarder, braking is performed by using the rotational resistance of the drive shaft. Therefore, unlike ordinary momentary braking of the foot brake, it gradually brakes, so that it can be stably braked even in an emergency situation.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, as claimed, and will be fully understood by those of ordinary skill in the art. The present invention is not limited thereto. It will be apparent to those skilled in the art that various substitutions, modifications and variations are possible within the scope of the present invention, and it is obvious that those parts easily changeable by those skilled in the art are included in the scope of the present invention .

100 emergency button section
200 Reset button section
300 control unit
400 Retarder
500 warning section
S100 < tb >
S200 First control step
S300 Second judgment step
S400 Second control step
S500 Third judgment step
S600 Third control step
S700 fourth control step

Claims (10)

A first determination step (S100) of determining whether the passenger has activated the emergency button;
A first control step (S200) of controlling the vehicle if it is determined that the emergency button is activated in the first determination step (SlOO);
A second determination step (S300) of determining whether the driver has operated the reset button within a predetermined reset time after the first control step (S200); And
A second control step (S400) of operating the retarder at maximum performance when the driver does not operate the reset button within the predetermined time in the second determination step (S300);
Wherein the active emergency deceleration method comprises the steps of: The method according to claim 1,
Further comprising a third determining step (S500) of determining whether the driver has operated the reset button after the second control step (S400). 3. The method of claim 2,
If the driver operates the reset button in the third determination step (S600), a third control step (S600) for initializing the vehicle control of the first control step (S200) and the second control step (S400) Wherein the active emergency deceleration method comprises the steps of: The method according to claim 1,
Further comprising a fourth control step (S700) of determining that the vehicle is not in an emergency situation and controlling the vehicle when the driver operates the reset button in the second determination step (S300). 5. The method of claim 4,
Wherein the fourth control step (S700) comprises an initializing step (S710) of initializing the vehicle control of the first control step (S200). 5. The method of claim 4,
The fourth control step (S700) includes an emergency button disablement step (S720) for preventing an occupant from operating the emergency button for a predetermined disable time. The method according to claim 1,
Wherein the first control step (S200) includes a deceleration step (S210) of operating the retarder to decelerate the vehicle and to operate an emergency lamp disposed in front of and behind the vehicle. The method according to claim 1,
Wherein the first control step (S200) includes a driver warning step (S220) in which a buzzer sounds from a speaker installed in a driver's seat. The method according to claim 1,
Wherein the first control step (S200) includes an inability to accelerate (S230) in which the vehicle is not accelerated even if the driver depresses the accelerator pedal. An emergency button unit 100 that can be operated by a passenger when the driver is in an abnormal condition;
A reset button unit 200 for allowing the driver to initialize the state of the vehicle when the emergency button unit 100 malfunctions;
A control unit 300 for controlling the vehicle by operation of the emergency button unit 100 or the reset button unit 200;
A retarder unit 400 capable of decelerating the vehicle speed or stopping the vehicle according to a signal of the control unit 300; And
A warning unit 500 for alerting the driver by sounding an alarm according to the signal of the controller 300;
And an active emergency decelerator.

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