KR19990004691A - Car emergency light and turn signal control device - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a vehicle emergency light and a turn signal control device.

2. The technical problem to be solved by the invention

Subsequent vehicles were unable to read the direction of rotation under the condition that the emergency lights were on, causing large accidents during driving.

3. Summary of Solution to Invention

The lamp simultaneous control unit implemented in the MPU (1) for controlling the vehicle, and the lamp disconnection check unit (WS), the alarm means (3) consisting of a speed sensor (2) and LED (L) and buzzer (B); The emergency light switch 10, the left direction lamp drive switch 11, the right direction lamp drive switch 12, the brake switch 13, the horn switch 14 are input means of the MPU 1, and the MPU 1 The output stage from the left front lamp 40, the left rear lamp 41, the right front lamp via the operating relays 20 and 21 and the diodes 30, 31, 32, 33, 34, 35 and 36 for preventing the backflow. 42, the right rear lamp 43 is connected, and the brake switch 13 is directly connected via the logic circuit portion D to connect the brake lamps 50 and 51 to each other.

4. Important uses of the invention

Subsequent vehicles have the usefulness to grasp the emergency state and the left and right rotation states of the preceding vehicle, and to detect the lamp break repeatedly to prevent the accident in advance.

Description

Vehicle emergency light and turn signal control device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle emergency light and direction indicator light control device, and more particularly to driving control of a vehicle, a lamp control which is a means for indicating a driver's rear vehicle, in particular a control circuit of an emergency light and a direction indicator light and its operation configuration. It is about.

Various types of lamps mounted on the front and rear of a vehicle are an efficient device for transmitting the driver's intention to the rear subsequent vehicle at night or daytime. Among these lamps, emergency lights for vehicle breakdowns or unexpected accidents in front of the vehicle and direction lights to turn left and right according to the driver's intention are very important factors.

However, the above-mentioned emergency light and direction indicators are usually used as emergency lights when the left and right lamps are lit at the same time by using a single lamp, and used as direction indicators when only one lamp is blinking. As a vehicle, it becomes impossible to read, and it is impossible to know in which direction the vehicle will travel in an emergency, which causes a large accident at night driving.

In addition, the direction indicator light may cause the above-mentioned accident by driving without knowing that it is a malfunction, and it was also very troublesome to have the help of other people to check it.

In view of the problems of the above-described conventional configuration of the vehicle emergency light and the direction indicator light, the vehicle emergency light and the direction indicator control device of the present invention can easily follow-up vehicles in the emergency state at the same time when the emergency light is turned on and the direction indicator light is turned on. By reading the driving direction, it is useful to prevent large traffic accidents at night or daytime. In addition, by checking the disconnection of each lamp in advance to prevent the lamp from running in a broken state.

1 is a circuit diagram showing the hardware configuration of the vehicle emergency light and turn signal control device of the present invention.

2 is a flowchart showing an initial lamp check in the vehicle emergency light and turn signal control device of the present invention.

3 is a flowchart showing the emergency light and the left and right switch check routines of the vehicle emergency light and turn signal control device of the present invention.

4 is an operating flowchart of the case of performing a normal left turn in the vehicle emergency light and turn signal control device of the present invention.

5 is an operating flowchart of the case of performing a normal right turn in the vehicle emergency light and turn signal control device of the present invention.

6 is an operation flow diagram when the emergency light and the left turn at the same time in the vehicle emergency light and turn signal control device of the present invention.

7 is a flowchart illustrating the operation of the emergency light and the right turn at the same time in the vehicle emergency light and turn signal control device of the present invention.

Explanation of symbols for the main parts of the drawings

1: MPUWS: Lamp break check

2: Speed sensor L: LED

B: buzzer

The vehicle emergency light and direction indicator control device of the present invention together with the accompanying drawings will be described in more detail.

1 is a hardware configuration of the vehicle emergency light and turn signal control device of the present invention, Figure 2 is a flow chart showing the initial lamp checkin, Figure 3 A, B is a flow chart of the emergency light and left and right switch checkin, Figure 4 is normal Fig. 5 shows the operating flow when the left turn is performed, Fig. 5 shows the operating flow when the normal right turn is performed, Fig. 6 shows the operating flow when the emergency light and the left turn are performed simultaneously, and Fig. 7 shows the operation when the emergency light and the right turn are performed simultaneously. It is a flow chart.

The electronic control unit of a general vehicle in which the present invention is implemented includes a built-in MPU 1 and includes control routines for various lamps inside the MPU 1. Therefore, the vehicle emergency light and direction indicator light control apparatus of the present invention is a program embedded in the MPU 1 of most configurations, and only a part has a hardware configuration that is newly disclosed.

The present invention is roughly divided into a lamp disconnection check unit (WS), which is a hardware configuration for checking disconnection of each lamp, and a lamp simultaneous control unit, which is a program configuration for controlling lamps at the same time as emergency lights and direction indicators.

Alarm means (3) consisting of speed sensor (2) and LED (L) and buzzer (B) centered on MPU (1), emergency light switch (10), left direction lamp drive switch (11), right direction lamp The drive switch 12 and the brake switch 13 are connected to the input means, respectively.

Of course, the left direction lamp drive switch 11 and the right direction lamp drive switch 12 is composed of a rotatable combination switch mounted under the handle of the vehicle. 14 is a horn switch.

With respect to the above input stage, the output stage from the MPU 1 is connected to the left front lamp 40 and the left side through the operation relays 20 and 21 and the diodes 30, 31, 32, 33, 34, 35 and 36 for preventing the backflow. The rear lamp 41, the right front lamp 42, the right rear lamp 43 is connected.

The brake switch 13 is directly connected to the brake switch 13 via the logic circuit LD, and the brake lamps 50 and 51 are connected to each other.

In the above-described configuration, the configuration of the lamp disconnection check unit WS is additionally described.

The wiring branched separately from the left front lamp 40, the left rear lamp 41, the right front lamp 42, and the right rear lamp 43 at the output of the MPU 1 compares the reference voltage VL with the voltage value. To do this, a pair of OR gates OR1 and OR2 are connected in the LOW state as resistors R1, R2, ... R4, and the pair of OR gates OR1 and OR2 are connected to the input terminal RB5 of the MPU 1. The other OR gate OR3 is connected to the brake lamps 50 and 51 directly connected to the brake switch 13 and the resistors R9 and R10 are set to the LOW state. The resistors R5, R6, ..., R8 and resistors R11, R12 are resistors for protecting the OR gates OR1, OR2, OR3, respectively.

With the above configuration, first, the operation of the lamp disconnection checker WS will be described.

The procedure for checking the lamp when the initial power is turned on is as follows.

Resistor R1, R2,... R4 causes each lamp to have a current lower than the reference voltage, and when the lamp is in normal state, all lamps are 'LOW'. If any one of the lamps is disconnected, the disconnected lamp becomes 'HIGH', so that the MPU 1 is in a broken state through the OR gates OR1 and OR2 to the driver as LEDL and buzzer B. It will be announced.

This will be described with reference to the flowchart of FIG. 2.

When the initial system is set by applying power (100) (101), the terminals RA0, RA1, RA2, and RA3 of the MPU 1 are used as output terminals, and the terminals RB0, RB1, RB2, RB3, ... RB7 are input terminals. (102), it is determined whether any one of the terminals (RB5, .RB7) is 'HIGH' (103), if the 'HIGH' (Y), and again the terminal (RB7) is 'HIGH' ( 104, and outputs a beep sound from the 'HIGH' rear (Y) terminal RA2 to emit a beep sound for the right lamp break (105), and again, the terminal RB6 is applied to the 'HIGH' application 106. If it is determined as 'HIGH', the terminal RA2 outputs a warning sound to generate a warning sound for the left lamp disconnection (107), and determines whether the terminal RB5 is 'HIGH' 108 or not. At RA2, a warning sound is output to generate a warning sound for break lamp break (109), and the routine returns to a repeating check routine 110 if it is not 'HIGH' in each routine. Detecting disconnection And preferably, each set disconnection alarm lamp of the line of each other so as to have a different voice tank.

The operation of the simultaneous lighting of the emergency light and the direction indicator light that are configured as logic circuits in the MPU 1 will be described below with the continuous CHECK routine of FIG.

As shown in FIGS. 3A and 3B and after the disconnection check is completed as described above, each terminal is checked to set a jump routine (200).

If it is determined that the emergency light drive signal input of the RB6 terminal is present (201) (Y), the emergency light is executed (300) to go to the routine of 3 degrees B, or (N) to determine whether there is a left turn lamp drive signal of the RB1 terminal. (202) go to the routine of 4 degrees to execute (301) the left turn lamp drive if present (N), or determine whether there is a right turn signal of RB2 (203) to determine if there is (Y) the right turn lamp drive Go to the routine of FIG. 5 to execute 302.

If there is no emergency light or left / right rotation lamp driving signal, that is, normal speed is checked (204), and if there is a constant speed, for example, 80 km or more (Y), whether there is a horn switch signal (RB4). Judging 205, if there is a Y (i.e., an emergency in which the driver is alarming), turn on the emergency light several times and then turn left, right and brake signals RB0, RB1 and RB2. If it is determined 207 (Y), the routine returns to the routine 204.

In the above case, if the constant speed is less than 80 km or less (N), it is determined whether the braking signal of RB3 is 'HIGH' (305), and if it is 'HIGH' (Y), the initial CHECK routine is returned or otherwise (N). ), The logic value of the lamp disconnection check unit WS is determined to check the disconnection state (306). If the disconnection is present (Y), the output signal is supplied to the RA2 and 3 terminals to generate a warning sound several times (307). Or (N) repeat the initial CHECK routine as above.

The emergency light operation mode of FIG. 3B will be described.

If there is an emergency light execution signal (400) outputs a lighting signal of the emergency light execution of RA0, 1 (401), it is determined whether there is a left and right rotation lamp drive signal again in the state of emergency light operation (402), Y), it is determined whether it is to turn left (403), and it is determined whether it is to turn right continuously (404), and if it is 'Yes', it is again determined whether it is emergency light + left turn (501) and emergency light + right turn (502). + Left and right turning modes are sent to the 6th and 7th degrees, respectively, if 'NO' simply performs the left turn lamp drive 503 or right turn lamp drive 504.

If there is no left / right rotation lamp driving signal, it is determined whether there is an emergency light driving signal (405), and if not (N), it returns to the initial CHECK routine, and if it is (Y), it returns to the initial routine 400 and repeats. .

Next, the left turn lamp driving mode of FIG. 4 will be described.

When the left turn lamp driving mode is started (600), RA1 is set to 'High' to drive the left turn lamp (601), and when the delay time of the lighting for a predetermined time elapses (602), the left turn lamp is turned off again (603). Then, it is determined whether there is an emergency lamp driving input (604), and if there is (Y), it returns to the emergency light operation mode again, and if there is (N) again, there is a left turn lamp drive signal (605) and a right turn lamp drive signal (606). ), If none (N), return to the initial CHECK routine and if there is a left turn lamp drive signal (Y), RA1 must be in the LOW state to check the disconnection status of the lamp before repeating. When RB6 is checked 607, it is determined whether RB6 is 'HIGH' (608), and if it is HIGH, a lamp break is alarmed (609).

If there is a right turn lamp drive signal (Y), return to the emergency light check routine (400).

The right turn lamp driving mode of FIG. 5 will be described.

When the right turn lamp driving mode is started (700), RA0 is set to 'HIGH' to drive the right turn lamp (701), and when the delay time of the lighting for a predetermined time elapses (702), the left turn lamp is turned off again (703). Then, it is determined whether there is an emergency lamp driving input (704), and if there is (Y), it returns to the emergency lamp operation mode, and if there is (N) again, there is a right turn lamp drive signal (704) and a left turn lamp drive signal (705). ), If none (N), return to the initial CHECK routine and if there is a left turn lamp drive signal (Y), RA0 must be 'LOW' to check the disconnection status of the lamp before repeating. At this time, RB7 is checked (707) and if RB7 is 'HIGH' determined (708), if it is HIGH, a lamp break is alerted (709), and if it is not disconnected, it returns to 701.

If there is a right turn lamp driving signal (Y), the routine returns to the emergency light check routine 400 and checks whether it is an emergency light input, an emergency light + a left turn, or an emergency light + a right turn signal.

Next, the mixed mode of the emergency light and the direction indicator in FIG.

The emergency light + left turn lamp driving mode of FIG. 6 will be described.

When it is determined that the emergency light + left turn lamp driving mode (800), the emergency light blinks about 2 times and the left turn about 2 times to inform the subsequent vehicle that it is a mixed mode (801), and again, the emergency light switch is turned 'ON' and the left turn lamp driving switch (802) and (N) terminates and returns to the initial CHECK routine. If YES, the RB6 terminal is checked to recheck the lamp break status. If it is determined 804, if it is 'HIGH', the left lamp break warning is issued (805), and the operation is repeated again (N).

Explain the emergency light + right turn lamp driving mode of FIG.

If it is determined that the emergency light + right turn lamp driving mode (900), the emergency light is blinked about twice and the right turn lamp blinks about two times to inform the subsequent vehicle that it is a mixed mode (901). Again, the emergency light switch is ON and the right turn lamp is turned on. The driving switch judges whether the ON switch is 'ON' continuously (902, 903), otherwise it terminates (N) and returns to the initial CHECK routine. If YES, the RB7 terminal is checked to check the lamp disconnection status again. If the 'HIGH' is determined (904), if it is 'HIGH', the right lamp break warning is issued (805), and the operation is repeated again (N). Return to the initial routine and continue the emergency light test to judge the speed. If the speed is over the set speed, keep checking the horn switch (RB4) and make the emergency light blink several times or more.

As described above, the vehicle emergency light and direction indicator light control device of the present invention provides a mixed operation mode of the emergency light and the direction indicator light so that subsequent vehicles can grasp the emergency state and the left and right rotation states of the preceding vehicle, and repeatedly disconnect the lamp. It is useful to prevent accidents caused by the failure of the lamp by detecting and notifying.

Claims (2)

The lamp simultaneous control unit implemented in the MPU (1) for controlling the vehicle, and the lamp disconnection check unit (WS), the alarm means (3) consisting of a speed sensor (2) and LED (L) and buzzer (B); The emergency light switch 10, the left direction lamp drive switch 11, the right direction lamp drive switch 12, the brake switch 13, the horn switch 14 are the input means of the MPU 1, At the output from the MPU 1, the left front lamp 40 and the left rear lamp 41 are passed through the operation relays 20 and 21 and the diodes 30, 31, 32, 33, 34, 35 and 36 for preventing the backflow. , The right front lamp 42 and the right rear lamp 43 are connected, and the brake switch 13 is directly connected through the logic circuit unit D to connect the brake lamps 50 and 51; As the lamp disconnection checker (WS), a wiring branched separately from the left front lamp 40, the left rear lamp 41, the right front lamp 42, and the right rear lamp 43 of the output terminal of the MPU 1 is In order to compare the reference voltage VL and the voltage value, a pair of OR gates OR1 and OR2 are set to be set as LOW as resistors R1, R2,... R4, and the OR gates OR1 and OR2 are connected to each other. Another OR gate OR3 sets resistors R9 and R10 in the low state in the brake lamps 50 and 51 connected to the input terminals RB5, RB6 and RB7 of the MPU 1 and directly connected to the brake switch 13. Car emergency light and direction indicator control device characterized in that connected by. The lamp simultaneous control unit and the lamp disconnection check unit (WS) implemented in the MPU (1) for vehicle control, the lamp simultaneous control implemented in the MPU (1); Detect each left / right rotation lamp drive signal and emergency light drive signal, and in case of mixed operation mode, make emergency light blink for a certain number of times and notify that it is mixed mode. At the same time, lamp disconnection is repeatedly performed by OR logic circuit. At the same time, the vehicle emergency light and turn signal control device characterized in that the logic system for detecting the signal of the horn even if the set vehicle running speed or more, the emergency light flashes as a certain number of times.