KR200262466Y1 - Apparatus for controlling lighting of brake lamp in a vehicle - Google Patents

Abstract

The present invention provides a brake light control apparatus for a vehicle that enables to continuously light a brake light when a state in which a braking operation of the vehicle is performed in a single time corresponding to a predetermined period or less is detected.

To this end, the present invention provides a braking lamp lighting apparatus for a vehicle having a braking light that is lit according to a braking pedal for braking the vehicle, wherein the braking detecting unit detects a braking state according to the braking pedal and generates a braking detection signal. And a lighting interval adjusting unit for generating a plurality of continuous driving pulse signals when the braking detection signal from the braking detection unit is equal to or less than a predetermined period, and the braking lamp is controlled by the braking period by the braking detection signal from the braking detection unit. And a brake lamp driver driven to be turned on and driven so as to continuously turn on a plurality of circuits after the brake lamp is turned on by the braking period by a plurality of continuous drive pulse signals from the lighting interval adjusting part.

Description

Apparatus for controlling lighting of brake lamp in a vehicle}

The present invention relates to a braking light control device for a vehicle, and more particularly to a braking light control device for a vehicle for adjusting the lighting state of the braking light that is turned on during braking of the vehicle.

In general, a vehicle is provided with a lighting device as a means for visually displaying the driving state. Such lighting device includes a headlight for securing a clock ahead at night or low light, and a clock in a fog area. Fog lights that are turned on to secure, brake lights that are turned on to indicate the braking state of the vehicle, and vehicle width lights that are turned on to indicate the vehicle width of the vehicle at night are applied.

Among such lighting devices, when the driver operates the brake pedal to decelerate or stop the vehicle, the brake switch is connected to the driver according to the operation of the braking mechanism so that the driver can turn on the vehicle. It is possible to visually inform the braking state of the vehicle.

That is, the braking light is turned on according to the pressure (hydraulic or pneumatic) for the hydraulic or pneumatic braking master cylinder generated while the driver of the vehicle applies the braking pedal to the braking pedal. Only the braking light turns on.

However, the brake light applied to such a conventional vehicle can be turned on only during the period in which the driver operates the brake pedal. Therefore, when the brake pedal needs to be operated momentarily, such as a situation in which a sudden start and stop after the brake is applied to the brake light, Since it is possible to turn on in a moment, it is difficult for the driver behind the vehicle to easily grasp the state in which the brake light of the front vehicle is turned on, and thus, it is difficult to secure a mileage for safe driving.

Accordingly, the present invention has been made to solve the above-described conventional problems, and an object thereof is to provide a continuous light to the brake light when a braking operation of the vehicle is detected in a single time corresponding to a predetermined period or less. To provide a braking control device.

1 is a view showing a circuit configuration for a brake light control device of a vehicle according to an embodiment of the present invention,

2a and 2b is a view showing the configuration of the braking operation detection unit shown in FIG.

3A and 3B are timing charts showing an output waveform state of each circuit part shown in FIG. 1 according to one embodiment of the present invention;

Figure 4 is a block diagram showing the configuration for the brake light control device of a vehicle according to another embodiment of the present invention,

5 is a flowchart for describing an operation of a brake light control apparatus of a vehicle according to another embodiment of the present invention.

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

10: counter, 12: pulse generator,

14, 16, 44, 46: brake light, 30: vehicle speed detection unit,

32: braking master cylinder, 34: braking detector,

36: analog-to-digital converter (ADC), 38: memory,

40: electronic control unit (ECU), 42: brake light drive unit,

PD: light emitting diode, PT: light receiving transistor

TR: drive transistor.

According to one embodiment of the present invention to achieve the above object, in the braking lamp lighting device of a vehicle having a braking light that is lit in accordance with the operation of the braking pedal for braking the vehicle, by detecting a braking state according to the operation of the braking pedal A braking detector for generating a braking detection signal, a lighting interval adjusting unit for generating a plurality of consecutive driving pulse signals when the braking detection signal from the braking detection unit is less than or equal to a predetermined period, and the braking detection from the braking detection unit. The brake lamp is driven by the signal to be turned on by the braking period, and the brake lamp is driven to be continuously turned on by the plural circuits after the brake lamp is turned on by the braking period by a plurality of continuous drive pulse signals from the lighting interval adjusting unit. Provided is a brake light control apparatus for a vehicle configured as a driving unit.

According to another example of the present invention in order to achieve the above object, in the braking lamp lighting apparatus of a vehicle in which a braking light is turned on while braking is performed according to the cylinder operation of the braking master cylinder by the operation of the braking pedal, When the braking detection unit detects the braking state according to the cylinder operation and generates a braking detection signal, and the signal period of the braking detection signal generated from the braking detection unit is included in a preset single braking period, during the braking period of the braking lamp. An electronic control unit for generating a drive control signal for continuously lighting a plurality of circuits in addition to the lighting of the light, and a drive for turning on the braking lamp during the braking period by a drive control signal from the electronic control unit, and additionally driving for continuously lighting a plurality of circuits. Braking of the vehicle consisting of a braking light driver It provides a control device.

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

That is, FIG. 1 is a diagram illustrating a circuit configuration of a braking light control apparatus of a vehicle according to an embodiment of the present invention.

As shown in FIG. 1, in one embodiment of the present invention, a braking detection unit for detecting a braking state of a vehicle and a braking detection period from the braking detection unit are determined to determine whether the braking lamps 14 and 16 are below a predetermined period. A driving interval for generating a driving pulse signal for additional lighting; and driving for turning on the brake lamps 14 and 16 by receiving a braking detection signal from the braking detection unit and a driving pulse signal from the lighting interval adjusting unit. It consists of a lighting driver to perform.

In the same figure, the braking detector comprises a light emitting diode PD as a light emitting element for generating infrared light and a light receiving transistor PT as a light receiving element for receiving infrared light from the light emitting diode PD. As shown in 2a, the light emitting diode PD is installed on the connecting shaft 22 connected to the brake pedal 20, and the light receiving diode PD is received in the lower frame on the driver's side corresponding to the installation position of the light emitting diode PD. The transistor PT is provided.

Here, as shown in FIG. 2B, when the braking pedal 20 is operated by the driver and the connecting shaft 22 is moved forward, the braking detector is fixedly mounted on the connecting shaft 22. PD is also moved forward to prevent receiving infrared light from the light receiving transistor PT side.

On the other hand, in one embodiment of the present invention, the braking detector consists of a light emitting element and a light receiving element for detecting the operation of the brake pedal, but applies all the detection sensors of various sensing methods that can detect the operation state of the brake pedal. In addition, it is also possible to employ all the detection sensors of various sensing methods for detecting the operating state of the braking master cylinder operated in accordance with the operation of the braking pedal.

In the figure, the lighting interval adjusting unit receives a detection signal generated from the light receiving transistor PT of the braking detection unit 10 and performs a counting, and counting generated according to the counting performed from the counter 10 When the signal is received, the trigger is advanced to include a pulse generator 12 for generating a plurality of driving pulse signals having a predetermined pulse period.

When the counter 10 receives the braking detection signal applied from the collector terminal of the light receiving transistor PT, the counter 10 starts counting. When the counting period is less than a predetermined predetermined period, generation of the corresponding braking detection signal is stopped. The counting signal is generated at the end time (that is, the time when the braking operation of the braking pedal 20 is released).

On the other hand, when the counter period of the braking detection signal generated from the collector terminal of the light receiving transistor PT is counted for more than a predetermined set period, the counter 10 arrives at the end of generation of the braking detection signal. Even if the counting signal is not generated.

The pulse generator 12 receives a counting signal generated from the counter 10 and is triggered to generate a plurality of consecutive driving pulses according to a pulse period determined by the resistor R5 and the capacitor C2. Will generate a signal.

Here, when the pulse generator 12 receives a counting signal from the counter 10 and is triggered, the pulse generator 12 generates a plurality of consecutive driving pulse signals after a predetermined idle period has elapsed. This corresponds to a period in which afterglow remains after the brake lights 14 and 16 are turned on once and then turned off.

In the same figure, the lighting driver receives the braking detection signal generated from the collector terminal of the light receiving transistor PT at its base terminal via the backflow prevention diode D1 and from the pulse generator 12. And a driving transistor for turning on the braking lamps 14 and 16 which are turned on by receiving a continuous driving pulse signal and connected to the emitter stage.

Next, an operation according to an embodiment of the present invention made as described above will be described in detail with reference to the timing charts of FIGS. 3A and 3B.

First, when the braking pedal 20 is operated by the driver for slow motion or braking while the vehicle is driving, the connecting shaft 22 moves forward while the connecting shaft 22 moves in accordance with the operation of the braking pedal 20. The light emitting diode PD fixedly installed on the N-C is moved, and the light receiving transistor PT is turned off because it does not receive infrared light as the position opposite to the light emitting diode PD is moved.

Accordingly, a high level braking detection signal is generated from the collector terminal of the light receiving transistor PT, and the driving transistor TR is turned on by applying the braking detection signal to the base terminal of the light receiving transistor PT 14. 16 is turned on during the generation of the braking detection signal, while the counter 10 performs a counting operation from the time when the braking detection signal is applied.

Meanwhile, as shown in FIG. 3A, when the signal period of the braking detection signal A counted by the counter 10 is the first pulse period T1, the counter 10 may include the braking detection signal A. FIG. A counting signal is generated at the end of the first pulse period T1 of the step S1), and the pulse generator 12 is triggered by receiving the counting signal from the counter 10 and during the second pulse period T2. The third pulse period T3 determined by the resistor R5 and the capacitor C2 through the rest period (i.e., the period in which afterglow remains after the brake lamps 14 and 16 are first turned off and then turned off). Two driving pulse signals (B) having () are generated in succession.

That is, the two driving pulse signals B generated from the pulse generator 12 have a second pulse period T2 corresponding to a period before the afterglow disappears after the braking lamps 14 and 16 are turned off. Each time it happens.

Accordingly, the driving transistor TR is turned on by receiving a driving signal C, which is a combination of the braking detection signal A and the driving pulse signal B, at its base end, so that the braking lamps 14 and 16 are braked. The signal period of the detection signal A and the pulse period of the driving pulse signal B are continuously turned on.

On the other hand, as shown in FIG. 3B, the signal period of the braking detection signal counted from the counter 10 exceeds the fifth pulse period T5 preset in the counter 10. ), The counter 10 does not generate a counting signal even when the sixth pulse period T6 exceeding the preset fifth pulse period T5 is completed, and the pulse generator 12 does not generate the counting signal. The counting signal from (10) is not received and the driving pulse signal is not generated.

Accordingly, in the driving transistor TR, the driving signal C having the same pulse period as the braking detection signal A generated from the light receiving transistor PT is applied to the base end thereof, and then turned on, and thus the braking lamp ( 14 and 16 are lit in correspondence with the pulse period of the drive signal C. FIG.

Next, another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

That is, Figure 4 is a block diagram showing the configuration of the brake lamp control apparatus of a vehicle according to another embodiment of the present invention.

As shown in FIG. 4, in another embodiment of the present invention, the vehicle speed detector 30, the brake master cylinder 32, the brake detector 34, and the analog / digital converter 36 (Analog / Digital Converter). An ADC), a memory 38, an electronic control unit 40, a braking light driver 42, and a braking light 44,46.

The vehicle speed detection unit 30 detects the traveling speed of the vehicle to generate a vehicle speed detection signal, and the brake detection unit 34 detects a cylinder operation state for braking from the braking master cylinder 32. It generates a braking detection signal.

Here, the braking detector 34 is preferably made of a hydraulic pressure or pneumatic pressure sensor for detecting the hydraulic pressure or pneumatic pressure generated by the cylinder operation of the braking master cylinder (32).

In the same figure, the analog / digital converter 36 is for digitally converting a brake detection signal generated from the brake detector 34, and the memory 38 is turned on after the brake lights 44 and 46 are turned on. The set data is stored for the one-time braking period that requires a plurality of additional lights.

The electronic control unit 40 is configured from the braking detection unit 34 through the analog / digital conversion unit 36 in a state where the driving state of the vehicle is recognized by the vehicle speed detection signal from the vehicle speed detection unit 30. When the braking detection signal is inputted, the brake lamps 44 and 46 are controlled to be turned on for as long as the braking detection signal is generated. The occurrence period of the braking detection signal is set in the memory 38. If it is determined that the short period included in the setting data of the braking period, the control for additionally turning on the braking lamps 44 and 46 is performed.

Here, the electronic control unit 40 determines that the signal period for the brake detection signal from the brake detection unit 34 is included in the one-time braking period of the setting data set in the memory 38. A drive control pulse signal is generated to additionally light 44,46 a plurality of times (e.g., two times), and the additional drive control pulse signal is turned on by the braking period 44,46 for a single braking period and then off. After this, the afterglow is generated regularly at each remaining period.

The brake lamp driver 42 performs driving for turning on the brake lamps 44 and 46 according to a drive control signal from the electronic control unit 40.

Next, the operation of the present invention made as described above will be described in detail with reference to the flowchart of FIG. 5.

First, when the vehicle is started and starts driving (step S10), the electronic control unit 40 receives the vehicle speed detection signal detected by the vehicle speed detecting unit 30 to recognize the driving state of the vehicle (step S11). ). At this time, the braking detector 34 detects whether the vehicle is braked according to the cylinder pressure change state of the braking master cylinder 32.

In this state, the electronic control unit 40 determines whether or not a braking detection signal is input according to a result of detecting a cylinder operating state for braking the braking master cylinder 32 from the braking detection unit 34. (Step S12).

As a result of the determination, when it is determined that the braking detection signal is being input from the braking detection unit 34 through the analog / digital conversion unit 36, the electronic control unit 40 controls the braking light driver 42. Whether the braking lights 44 and 46 are lit in correspondence with the signal period of the braking detection signal, and whether the signal period of the braking detection signal is included in the short braking period according to the setting data stored in the memory 38. It judges (step S13).

As a result of the determination, when the electronic control unit 40 determines that the signal period of the braking detection signal exceeds the one-time braking period according to the setting data of the memory 38, the braking lamps 44 and 46 The lighting state is maintained for the period corresponding to the braking period of the vehicle (step S14).

On the other hand, when it is determined that the signal period of the braking detection signal is included in the one-time braking period according to the setting data of the memory 38 according to the determination result of step S13, the braking lamps 44 and 46 The driving control of the brake light driver 42 is controlled to be turned on for a period corresponding to the actual braking period of the vehicle (step S15), and a plurality of times consecutively (that is, after the afterglow remains after the turning off of the brake lights 44 and 46). , Two times) drive control pulse signal is generated, the driving lights of the brake lamps 42 cause the brake lights 44 and 46 to be sequentially turned on a plurality of times (ie, twice) after the lighting according to the actual braking period. (Step S16).

The present invention having the above-described embodiments can be carried out in various ways without departing from the technical gist of the invention without departing from the embodiments.

According to the present invention as described above, if a short lighting of the braking light according to a single braking operation of the vehicle is made, additional multiple times of lighting can be made within the remaining period of time after the braking light is turned off. Even if a single braking is performed in the vehicle, it is possible to additionally turn on the braking light so as to induce sufficient attention of the driver of the rear vehicle and have a great effect on safe driving.

Claims (5)

In the braking lamp lighting apparatus of a vehicle having a braking lamp that is lit in response to the operation of the braking pedal for braking the vehicle, A braking detector which detects a braking state according to the operation of the braking pedal and generates a braking detection signal; A lighting interval adjusting unit generating a plurality of continuous driving pulse signals when the braking detection signal from the braking detection unit is equal to or less than a predetermined setting period; The brake lamp is driven by the brake detection signal from the brake detector so as to be turned on by the braking period, and the brake lamp is turned on by the brake period by a plurality of continuous drive pulse signals from the lighting interval adjusting part, and then a plurality of circuits are continuously performed. Brake light control apparatus for a vehicle, characterized in that consisting of a brake light driving unit is driven to achieve a regular lighting. The counter of claim 1, wherein the lighting interval adjusting unit counts a signal period of the braking detection signal of the braking detection unit to generate a counting signal at the end of the braking detection signal if the signal is included in a predetermined signal period. And a pulse generator triggered upon receiving the counting signal of the counter to generate a plurality of consecutive driving pulse signals. 3. The brake lamp control apparatus for a vehicle according to claim 2, wherein the drive pulse signal continuously generated from said pulse generator is set to be generated within a period in which afterglow remains after the braking lamp is turned off. In a braking lamp lighting device of a vehicle in which a braking light is turned on while braking is performed according to a cylinder operation of a braking master cylinder by operating a braking pedal, A braking detector for detecting a braking state according to a cylinder operation of the braking master cylinder and generating a braking detection signal; An electronic control unit for generating a drive control signal for continuously lighting a plurality of circuits in addition to the lighting during the braking period of the braking lamp when the signal period of the braking detection signal generated from the braking detection unit is included in a predetermined braking period; , And a brake lamp driving unit configured to turn on the brake lamp during a braking period in response to a drive control signal from the electronic control unit, and additionally perform driving to continuously turn on a plurality of circuits. The braking lamp control apparatus of claim 4, wherein the electronic control unit controls not to generate a driving control signal for a plurality of continuous lights when the signal period of the braking detection signal exceeds a single braking period. .