JP2003182451A - Rear-end collision preventive device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rear-end collision preventive device for a vehicle capable of preventing rear-end collision of a following car to a tracted car by lamp- indicating the same indicating state as that of a winker lamp and a stop lamp of a tractor on a rear part of the tracted car. <P>SOLUTION: Winker sensors 11, 14 and stop lamp sensors 12, 13 to detect light-on and light-off states are mounted on the winker lamp and the stop lamp of the tractor free to connect and disconnect to and from them. A case storing comparators 15-18, lamp drivers 21-24, the winker lamps 25, 28 and the stop lamps 26, 27 is installed on the side of the tracted car 2 free to connect and disconnect to and from it. It is possible to prevent rear-end collision to the tracted car 2 as the following car of the tracted car 2 can grasp the light-on and light-off states of the lamp since each of the sensors 11-14 detects light-on or light-off of the winker lamps and the stop lamps of the tractor in accordance with the light-on and the light-off of them and each of the winker lamps 25, 28 and the stop lamps 26, 27 on the side of the tracted car 2 lights on and off at real time. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear-end collision prevention device for preventing rear-end collision with a towed vehicle towed by a tow vehicle.

[0002]

2. Description of the Related Art When a vehicle breaks down on an open road and cannot drive by itself, or when a vehicle illegally parked in a parking prohibited area is towed by a tow truck, these vehicles are towed by a towing vehicle. I often see towing and running. FIG. 19 shows a trailer 3 connected to the towing vehicle 1.
20 shows a state in which the towed vehicle 2 is mounted on the vehicle, and FIG. 20 shows that the towed vehicle 2 is lifted by the towing device 4 provided at the rear portion of the towed vehicle 1 to travel. It shows the state of being.

When the towed vehicle 2 travels while being towed by the towed vehicle 1, if the towed vehicle 2 is a defective vehicle, there is a driver, so the vehicle will travel at a relatively slow speed while blinking the hazard lamp. There is. Further, in the case of illegal parking, since there is no driver, the door cannot be opened, and therefore, it is the current situation that the towed vehicle 2 is being towed while the hazard lamps and the like are not blinking.

[0004]

When the vehicle illegally parked is towed, the blinker lamps and stop lamps on the left and right rear surfaces of the towing vehicle 1 blink according to the operation of the driver of the towing vehicle 1. Lighting is performed. However, the turn signal lamps and stop lamps of the towed vehicle 2 are not blinked or lit at all, and the driver of the following vehicle does not know whether the tow vehicle 1 in front of the vehicle is turning right or left, or is braking. Not knowing, there was a problem that the following vehicle would collide with the towed vehicle 2 or the possibility of a rear collision would be extremely high.

Further, even if the towed vehicle 2 is a malfunctioning vehicle and the hazard lamp (winker lamp) is blinking to notify the succeeding vehicle of the situation in which the towed vehicle 2 is being towed, the blinker lamp is simply Just by blinking, the situation of whether the driver of the towing vehicle 1 makes a right turn or a left turn, or whether the brake is stepped on is completely unknown to the following vehicle as in the above, and there is a possibility of a rear-end collision.

[0006] Further, in the special towing vehicle 1, there is a vehicle in which the width of the rear portion is slightly wide so that the blinker lamp and the stop lamp can be seen.
There is a comparatively large distance from the position of the turn signal lamps and stop lamps to the rear part of the towed vehicle 2, and it is difficult for the following vehicles to get a sense of distance. Especially, in the evening and night, or in the case of rain, There is a problem in that the operating state of the towed vehicle 2 is difficult to understand and there is a high possibility that a succeeding vehicle may collide with the towed vehicle 2 at a rear end.

The present invention has been made in view of the above-mentioned problems, and the following display states are provided by displaying the same display state as the blinker lamp and the stop lamp of the towing vehicle on the rear portion of the towed vehicle. To provide a vehicle rear-end collision prevention device for the purpose of preventing rear-end collision of a vehicle with a towed vehicle.

[0008]

Therefore, in the vehicle rear-end collision prevention device according to claim 1 of the present invention, the sensors 12, 13 for detecting whether the stop lamps 6, 8 of the towing vehicle 1 are turned on or off.
And stop lamps 26 and 27 arranged at the rear of the towed vehicle 2 towed by the tow vehicle 1 and turned on and off in response to detection signals from the sensors 12 and 13. There is.

With this configuration, the towed vehicle 2 that is being towed by the tow vehicle 1 has stop lamps 26, 2 depending on whether the stop lamps 6, 8 of the tow vehicle 1 are turned on or off.
7 is turned on and off, and the trailing vehicle of the towed vehicle 2 can recognize the stepping state of the brake of the towing vehicle 1 and prevent the trailing vehicle from colliding with the towed vehicle 2.

According to another aspect of the vehicle collision prevention device of the present invention,
Sensors 11 and 14 for detecting turn-on and turn-off of the turn signal lamps 5 and 7 of the towing vehicle 1 and detection signals from the sensors 11 and 14 arranged at the rear part of the towed vehicle 2 towed by the towing vehicle 1. The blinker lamp 25, which is turned on and off according to
28 is provided.

With this configuration, when the towed vehicle 2 that is being towed by the towing vehicle 1 blinks either of the left and right turn signal lamps 5 and 7, the turn signal lamps on the towing vehicle 1 side. Either of the blinker lamps 25 and 28 on the towed vehicle 2 side blinks in response to the blinking of 5 and 7, and the succeeding vehicle of the towed vehicle 2 can recognize which of the left and right of the towed vehicle 1 is turning. As a result, a rear-end collision of the following vehicle with the towed vehicle 2 can be prevented.

In the vehicle rear-end collision prevention device according to claim 3,
Sensors 11 to 14 for detecting turn-on and turn-off of the turn signal lamps 5 and 7 and the stop lamps 6 and 8 of the towing vehicle 1 and the sensors 11 to 14 arranged at the rear of the towed vehicle 2 towed by the towing vehicle 1. The turn signal lamps 25 and 28 and the stop lamp 2 which are turned on and off according to the detection signal from the control lamp 14.
It is characterized by having 6, 27.

With this structure, the towed vehicle 2 side towed by the tow vehicle 1 is turned on and off by the stop lamps 6 and 8 of the tow vehicle 1 and the turn signal lamps of the tow vehicle 1 are turned on and off. Stop lamp 2 depending on the blinking status of 5 and 7
By turning on and off 6, 27 and blinking the turn signal lamps 25, 28, the following vehicle of the towed vehicle 2 can recognize information such as the brake pedal state of the towed vehicle 1 and whether to turn left or right. Therefore, the rear-end collision of the following vehicle with the towed vehicle 2 can be reliably prevented.

According to another aspect of the vehicle collision prevention device of the present invention,
The sensors 11 to 14 are arranged on the towing vehicle 1 side, and the winker lamps 25 and 28 and the stop lamps 26 and 27 are arranged on the rear portion of the towed vehicle 2, and are characterized in that they are connected by a wire.

As a result, the detection signals from the sensors 11 to 14 can be sent to the blinker lamps 25, 28 side and the stop lamps 26, 27 side without malfunction, and the cost can be reduced.

According to another aspect of the vehicle rear-end collision prevention device of the present invention,
The blinker lamps 25 and 28 and the stop lamp 2
Cases 30 and 31 containing 6 and 27 are attached to a magnet rubber plate 33.
Alternatively, at least one of the suction cups is detachably installed on the towed vehicle 2.

As a result, the cases 30, 3 accommodating the blinker lamps 25, 28 and the stop lamps 26, 27 are accommodated.
1 can be removably installed on the part of the towed vehicle 2 that is easily visible from the following vehicle, and can be installed without damaging the painted surface of the towed vehicle 2 by the magnet rubber plate 33 and the suction cup.

According to another aspect of the vehicle rear-end collision prevention device of the present invention,
Sensors 11-14 for detecting turn-on and turn-off of turn signal lamps 5, 7 and stop lamps 6, 8 of the towing vehicle 1, comparators 15-18 for converting analog outputs of the sensors 11-14 into digital outputs, and the comparators 1
A transmitter 40 arranged in the towing vehicle 1 is configured by a control device 41 that reads output data 5 to 18 to generate lamp data, and a transmission unit 47 that wirelessly transmits a signal from the control device 41. The receiving unit 70 that receives a signal from the transmitter 40, the control unit 61 that receives the lamp data from the signal from the receiving unit 70, and outputs the lamp data such as lighting and extinguishing, and the lamp data from the control unit 61. The blinker lamps 25 and 28 which are turned on and off according to
And the stop lamps 26 and 27 constitute a receiver 60 arranged in the towed vehicle 2.

With such a configuration, the transmitter 40 is installed on the towing vehicle 1 side, and the receiver 60 is installed on the towed vehicle 2 side in a position that is easily seen by the following vehicle, and the stop lamp of the towing vehicle 1 is installed. Turning on and off of 6 and 8 and blinker lamps 5 and 7
The blinking state of is transmitted from the transmitter 40 to the receiver 60, whereby the following vehicle can grasp the state of the towing vehicle 1 and prevent a rear-end collision of the following vehicle with the towed vehicle 2.

In the vehicle rear-end collision prevention device according to claim 7,
Sensors 11 to 14 that detect the turn-on and turn-off of the turn signal lamps 5 and 7 and the stop lamps 6 and 8 of the towing vehicle 1, comparators 15 to 18 that convert the analog outputs of the sensors 11 to 14 into digital outputs, and their own An ID code generator 46 for creating an ID code and the comparator 1
5-18 output data and I from the ID code generator 46
The transmitter 40 arranged in the towing vehicle 1 is composed of a control device 41 that sequentially reads the D code data and generates the ID code data and the lamp data, and a transmission unit 47 that wirelessly transmits a signal from the control device 41. And a receiving unit 70 which receives a signal from the transmitter 40, and ID code data is fetched from the signal from the receiving unit 70. When the ID code data matches the own ID code, the lamp data is fetched to obtain the lamp data. The receiver 60 arranged in the towed vehicle 2 is configured by the control device 61 that outputs the signal, and the turn signal lamps 25 and 28 and the stop lamps 26 and 27 that are turned on and off according to the lamp data from the control device 61. It is characterized by being.

With this configuration, the transmitter 40 is installed on the towing vehicle 1 side, and the receiver 60 is installed on the towed vehicle 2 side at a position where it is easily seen by the following vehicle, and the stop lamp of the towing vehicle 1 is installed. Turning on and off of 6 and 8 and blinker lamps 5 and 7
The blinking state of is transmitted from the transmitter 40 to the receiver 60, whereby the following vehicle can grasp the state of the towing vehicle 1 and prevent a rear-end collision of the following vehicle with the towed vehicle 2. Also, I
Since I use the D code to recognize myself,
Even if a similar rear-end collision prevention device is used nearby,
It is possible to inform the following vehicle of the state of the towing vehicle 1 without malfunctioning.

In the vehicle rear-end collision prevention device according to claim 8,
The outputs of the sensors 12 and 13 for turning on and off the stop lamps 6 and 8 among the sensors 11 to 14 are logically OR outputs.

As a result, even if either of the stop lamps 6 and 8 of the towing vehicle 1 is cut off, the stop lamps 26 and 27 on the towed vehicle 2 side can be turned on at the same time.
The states of the towing vehicle 1 and the towed vehicle 2 can be further recognized by the succeeding vehicle. Thereby, the prevention of a rear-end collision can be further improved.

In the vehicle rear-end collision prevention device according to claim 9,
The transmitter 40 and the receiver 60 are detachably installed in the towing vehicle 1 and the towed vehicle 2 via at least one of the magnet rubber plate 33 and the suction cup, respectively.

As a result, the transmitter 40 and the receiver 60 can be installed at any desired positions on the towing vehicle 1 and the towed vehicle 2 and are convenient to use. Moreover, the painted surface of the towed vehicle 2 is particularly improved by the magnet rubber plate 33 and the suction cup. The receiver 60 can be detachably installed without damaging the.

In the vehicle rear-end collision prevention device according to the tenth aspect of the present invention, the magnet rubber plate 33 has an inclined surface 35 formed on the lower surface of the magnet rubber plate 33 so as to become thicker toward the rear. It has a feature.

As a result, the upper surface of the rear trunk of the towed vehicle 2 generally inclines downward toward the rear, but by using the magnet rubber plate 33, particularly the stop lamps 26, 27 and the turn signals. If a directional member is used for the lamps 25 and 28, it will be lit from the following vehicle,
The off and blinking states can be recognized well and a rear-end collision can be prevented.

In the vehicle rear-end collision prevention device according to the eleventh aspect of the present invention, there is an external light sensor 81 for detecting the brightness of the external light and a lamp 2 for a tail lamp which is turned on by a signal from the external light sensor 81.
6 and 27 are provided in the towed vehicle 2 towed by the tow vehicle 1.

As a result, even if the driver of the towing vehicle forgets to turn on the tail lamp (small lamp) when it is dark in the evening, the lamp can be automatically turned on by the output of the external light sensor. Therefore, it is possible for the following vehicle to recognize the lighting of the lamp of the towed vehicle and further improve the safety.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 4 show a first embodiment, FIG. 1 shows a block diagram of a rear-end collision prevention device, and FIG. 2 shows a rear surface of a towing vehicle 1. On the left and right sides of the rear surface of the towing vehicle 1, as is well known, a right blinker 5, a right stop lamp 6, a left blinker 7,
A left stop lamp 8 and a back lamp 51 are provided respectively.

The right winker sensor 11 is detachably attached to the surface of the right winker 5 of the towing vehicle 1, and the left winker sensor 14 is detachably attached to the surface of the left winker 7. A right stop lamp sensor 12 is detachably attached to the surface of the right stop lamp 6 of the towing vehicle 1, and a left stop lamp sensor 13 is detachably attached to the surface of the left stop lamp 8. . Further, the back lamp sensors 52 are detachably attached to the surfaces of the back lamps 51 on both sides.

These sensors 11 to 14 and 52 are composed of visible light conductive elements, and constantly detect the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51, and as shown in FIG. It is sent to each comparator 15 to 19 in the subsequent stage. In each of the comparators 15 to 19, each of the turn signals, the stop sensors 11 to 14 and the back lamp sensor 52.
Detection signal, that is, each lamp 5-8, 51 of the towing vehicle 1
When is turned on, for example, an H level signal is output, and when the lamps 5 to 8 and 51 are turned off, for example, the comparators 15 to 19 output an L level signal. Further, in response to the blinking of the right turn signal 5 and the left turn signal 7 of the towing vehicle 1, the comparator 1 is detected by the detection signals of the right turn signal sensor 11 and the left turn signal sensor 14.
Signals of H level and L level are alternately output from 5 and 18.

The signals from the comparators 15 to 19 are input to the lamp drivers 21 to 24 and 53, and the lamps 25 to 25 are output by the lamp drivers 21 to 24 and 53.
Up to 29 are turned on, turned off, and blinked.
Here, the right blinker lamp 25 with the lamp driver 21.
Is blinked, and the left blinker lamp 28 is blinked by the lamp driver 24. Further, the right stop lamp 26 is turned on and off by the lamp driver 22, and the left stop lamp 27 is turned on and off by the lamp driver 23. Further, the lamp driver 53
The back lamp 29 is turned on and off.

Although each of the lamps 25 to 29 is composed of a large number of light emitting diodes, a blinker lamp or a stop lamp used in a general automobile may be used. A battery (not shown) is used as the power source of the rear-end collision prevention device shown in FIG. For example, a battery that can be used for 8 hours is used in a state in which each of the lamps 25 to 29 is turned on, turned off, and blinked. Further, this battery is of a rechargeable type, and is fully charged before use to have the above-mentioned 8-hour specification. Of course, when the towed vehicle 2 travels a short distance, the operating time may be shortened to reduce the battery capacity to reduce the cost.

Next, the structure of the rear-end collision prevention device will be described. The comparators 15-19, the lamp drivers 21-24, 53 and the lamps 25-29 shown in FIG.
Each of the sensors 11 to 14 and 52 is connected to the respective cases 11 to 14 and 52 via a cable 32 (see FIG. 4). In addition,
In FIG. 1, the back lamp sensor 52 and the comparator 1
9, only one system of the lamp driver 53 and the back lamp 29 is shown, but actually two systems are provided depending on the left and right. As shown in FIG. 3, a case 30 is arranged on the right side of the upper surface of the trunk 9 at the rear of the towed vehicle 2.
The other case 31 is attached to the left side of the upper surface of the.
In the case 30, the comparators 15, 16, 19 and the lamp drivers 21, 22, 53, the right blinker lamp 2 are provided.
5, a right stop lamp 26, a back lamp 29, and a battery for power supply are stored. A right blinker lamp 25 is arranged on the right side of the back surface of the case 30, a right stop lamp 26 is arranged in the center, and a back lamp 29 is arranged on the left side.

Further, in the case 31, the comparators 17, 18, 19 shown in FIG. 1, the lamp drivers 23, 24,
53, left stop lamp 27, left blinker lamp 28,
A back lamp 29 and a battery for power supply are stored. The left blinker lamp 28 is on the left side of the back of the case 31.
, A left stop lamp 27 is arranged in the center, and a back lamp 29 is arranged on the right side. The case 30 is connected to the back lamp sensor 52, the right turn signal sensor 11 and the right stop lamp sensor 12 mounted on the towing vehicle 1 side via three cables 32.
The case 31 is connected to the back lamp sensor 52, the left stop lamp sensor 13 and the left turn signal sensor 14 via three cables 32.

The respective sensors 11 to 14 and 52 are directly and detachably attached to the surfaces of the respective lamps 5 to 8 and 51 of the towing vehicle 1 with a tape or the like so as not to be easily peeled off due to vibration during traveling. There is. Of course, other methods may be used to attach the sensors 11 to 14 and 52. The cases 30 and 31 are mounted on the upper surface of the trunk 9 of the towed vehicle 2 by using the magnet rubber plate 3
3 is used. The magnet rubber plate 33 is made of a strong magnet and rubber integrated with each other so as to be soft so as not to scratch the painted surface of the vehicle (the towed vehicle 2), and the cases 30, 31
Is detachably and firmly fixed to the towed vehicle 2. It should be noted that a power switch for turning on / off a power source from a battery (not shown) to each unit is omitted. When the cases 30 and 31 are made of synthetic resin, the case 3
The magnet rubber plate 33 is fixed to the lower surfaces of the Nos. 0 and 31 with an adhesive or the like. When the cases 30 and 31 are made of metal, the cases 30 and 31 and the magnet rubber plate 33 may be separately provided, and the magnet rubber plate 33 may be made of an adhesive or the like.
It may be fixed to the lower surface of 31.

The magnet rubber plate 33 is detachably attached to the painted surface of the towed vehicle 2 and the like.
It is not limited to. For example, the cases 30 and 31 may be attached to the towed vehicle 2 via rubber suction cups (one or more).
Alternatively, a suction cup may be used on the lower surface of the magnet rubber plate 33.

Next, the operation of the rear-end collision prevention device of this embodiment will be described. First, as shown in FIG. 4, setting is performed so that a towed vehicle 2, such as a vehicle having a trouble or an illegally parked vehicle, can be towed by the tow vehicle 1. Next, as shown in FIG. 3, the towed vehicle 2 is installed on the upper surface of the rear trunk 9 via the magnet rubber plates 33, respectively. The back lamp sensor 5 connected to the case 30 via the cable 32
2. The right winker sensor 11 and the right stop lamp sensor 12 are attached to the back lamp 51, the right winker 5 and the right stop lamp 6 of the towing vehicle 1 with tapes, respectively.
Further, the back lamp sensor 52 and the left stop lamp sensor 1 which are connected to the case 31 via the cable 32.
3 and the left turn signal sensor 14 are attached to the back lamp 51, the left stop lamp 8 and the left turn signal 7 of the towing vehicle 1 with tapes, respectively. With this, the towing vehicle 1 of the rear-end collision prevention device
And, the attachment to the towed vehicle 2 is completed.

When the driver of the tow vehicle 1 makes a right turn, for example, when the right blinker 5 of the tow vehicle 1 blinks while the tow vehicle 2 travels while towing the towed vehicle 2, the right turn signal of the right winker 5 is changed. The right blinker sensor 11 detects the blinking in response to the blinking. The detection signal of the right winker sensor 11 is input to the comparator 15 in the case 30, and the lamp driver 21 causes the right winker lamp 25 to blink in real time. Further, even when the left blinker 7 blinks, the left blinker sensor 14 detects this and similarly, the comparator 18 and the lamp driver 24
The left blinker lamp 28 is blinked in real time via.

Further, when the driver of the towing vehicle 1 depresses the brake, the right stop lamp 6 and the left stop lamp 8 are lit, and this lighting is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13. The comparators 16 and 17 and the lamp drivers 22 and 2, respectively.
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned on in real time via 3. When the driver of the towing vehicle 1 releases his / her foot from the brake, the right stop lamp 6 and the left stop lamp 8 are extinguished, so this extinction is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13, respectively. 17
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned off in real time via the lamp drivers 22 and 23.

Further, when the towing vehicle 1 and the towed vehicle 2 are moved back, the back lamp 51 of the towing vehicle 1 is turned on. Therefore, the back lamp sensor 52 detects the turning on, and the comparator 19 and the lamp driver 53 are used. Towed vehicle 2
The back lamp 29 on the side lights up. When the retraction of the towing vehicle 1 and the towed vehicle 2 is stopped, the back lamp sensor 52 detects that the back lamp 51 is off, and the back lamp 29 on the towed vehicle 2 side is turned off.

As described above, in this embodiment, the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51 of the towing vehicle 1 are controlled by the rear surface of the towed vehicle 2 towed by the towing vehicle 1. Since the lights 25, 29, 29 are turned on, turned off, and blinked in real time, for a person who is driving a vehicle following the towed vehicle 2, it is possible to indicate the direction of the towed vehicle 1, step on the brakes, and move backward. It is possible to recognize the situation and reliably prevent the following vehicle from colliding with the towed vehicle 2.
Since the cables 32 are connected between the sensors 11 to 14 and 52 and the cases 30 and 31 side by radio, not by radio, the risk of malfunction due to disturbance can be eliminated. Also, the cost can be reduced.

Since the detection signals from the right stop lamp sensor 12 and the left stop lamp sensor 13 are input to the comparators 16 and 17 as analog values, the reference values of the comparators 16 and 17 are set in two steps. If you leave it, you can also turn on the stop lamp in the evening. In such a case, the stop lamp 26,
The degree of lighting (brightness) of 27 depending on the voltage or the number
To be variable.

Further, when either of the stop lamps 6 and 8 of the towing vehicle 1 is cut off, the rear-end collision prevention device side also follows it, so the right stop lamp sensor 12 and the left stop lamp sensor 13, or Comparator 1
Even if either of the stop lamps 6 and 8 is burnt out, both of the stop lamps 26 and 27 can be turned on by the OR configuration of the outputs of 6 and 17. This eliminates the possibility that the following vehicle may collide with the towed vehicle 2 and further improve safety.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment,
As shown in FIG. 16, the rear-end collision prevention device is composed of a transmitter 40 detachably installed on the towing vehicle 1 side and a receiver 60 detachably installed on the towed vehicle 2 side. When the same elements as in the previous embodiment are used in the towing vehicle 1, the transmitter 40, and the receiver 60, the same numbers are assigned and detailed description thereof is omitted. Detailed description.

FIG. 5 is a block diagram of the transmitter 40 of the rear-end collision prevention device, in which the same sensors 11 to 14 as in the previous embodiment are used.
52 and each of the comparators 15 to 19, the control device 41 including a microcomputer, and the ID code generation unit 46.
The transmitter 40 is configured by a transmitter 47 that transmits each lamp data of the towing vehicle 1 to the receiver 60 side by the antenna 48. Further, the control device 41 is composed of an MPU and is entirely processed by software, but if it is structured by hardware, it has a block structure as shown in FIG. That is, a control unit 42 that controls the entire control, and a memory 43 that temporarily stores a program, data from the comparators 15 to 18 and data from the ID code generation unit 46.
And a data creating unit 44 that creates the states of the lamps 5 to 8 and 51 of the towing vehicle 1 as data, and the data creating unit 4
The control device 41 is configured by the data output unit 45 for sending the lamp data created in 4 to the receiver 60 via the transmission unit 47.

FIG. 6 is a block diagram of the receiver 60. The receiver 70 receives data from the transmitter 40 via the antenna 71, the control device 61 including a microcomputer, and the same components as those in the previous embodiment. Lamp driver 21-2
4, 53 and each of the lamps 25 to 29 and the like.
In addition, the control device 61 is similar to the control device 41 in that the MP
Although it is composed of U and is entirely processed by software, if it is structured by hardware, a block structure as shown in FIG. 6 is obtained. That is, the control unit 62 that controls the entire control
And a memory 63 for temporarily storing programs and various data, and I for detecting the ID code from the transmitter 40.
The D code detector 64, the data detector 65 for detecting the lamp data from the transmitter 40, the ID code collator 66 for collating the ID code, the data collator 67 for collating each lamp data, etc. 61 is configured.

ID of the transmitter 40 installed on the towing vehicle 1 side
The code generator 46 is composed of, for example, DIP switches.
I am creating a D code. Further, the control unit 42 sequentially and constantly reads the data from the comparators 15 to 18, and the data output unit 45 creates the data at that time. Further, the data output unit 45 also creates inverted data of the created data.

FIG. 7 shows a data format transmitted from the transmitter 40. A header part for allowing the receiver 60 to recognize the beginning of the data and various data following the header part (ID code data and towing vehicle 1). The lamp part and the data part are alternately and continuously transmitted from the transmitter 40 to the receiver 60 without generating a non-transmission section.

FIG. 8 shows the frame structure of the data section shown in FIG. 7, and shows the order of data transfer. DA is the ID code data, DB is the lamp data of the respective lamps 5 to 8 and 51 of the towing vehicle 1, and DC is a spare when it is desired to enter other data. In addition, the inverted data is transmitted after each data, and the ID code and the lamp data are collated to improve the probability of eliminating an error.

FIG. 9 shows a pulse signal of the header portion and ID code data. In the header portion, H level and L
For example, when a signal having the same pulse width is transmitted 10 times and the receiver 60 receives the pulse signal 10 times, it is recognized that the next signal is regular data. Further, in the ID code data, the H-level pulse for the first 2 bits has a function as a start bit of the ID code data, and the next 8 bits in the L-level section are ID.
It becomes code data. Further, similarly, in the lamp data, the first 2 bits are the function of the start bit, and the next 6 bits are the H level or L level of the lighting or extinguishing state of the respective lamps 5-8, 51 corresponding to 6 pieces. Pulse signal. Subsequent bits are reserved.

Next, the operation will be described. First, the control device 41 of the transmitter 40 always reads the ID code data created by the ID code generation unit 46, and the data creation unit 44 creates the inverted data of the ID code data read by the control unit 42. The ID code data read last time and its inverted data are stored in the memory 43. Therefore, the control unit 42 compares the read ID code data with the inverted data thereof, and if they match, determines that the read ID code data is correct. Furthermore, it compares with the previously read data stored in the memory 43, and if there is a match, determines that there is no error. If they do not match, the read ID code data is ignored, and the ID code generation unit The ID code data is read from 46.

Next, the output of the comparators 15 to 19 is sequentially and constantly read via the sensors 11 to 14 and 52 for the on and off states of the lamps 5 to 8 and 51 of the towing vehicle 1, respectively. The data creating unit 44 creates the inverted data from the read lamp data, and compares the read lamp data with the inverted data to determine whether there is any error. Further, the lamp data read last time and the inverted data thereof are stored in the memory 43, and the data from the memory 43 and the lamp data read this time are compared and collated. If the previous lamp data is on and the current lamp data is off, the lamp data is repeated until the lamp data matches twice. In this case, although the lighting and extinguishing of the lamp on the towed vehicle 2 side are slightly delayed, this is to reduce the probability of error.

When the ID code data and each lamp data match, as shown in FIG. 8, the ID code data DA and its inverted data (logical NOT of DA), each lamp data DB.
Inverted data (logical negation of DB), spare data DC
And its inversion data (DC logic NOT) in the data section (Fig. 7).
And the header part is created by the data creation part 44,
It is transmitted from the data output unit 45 and the transmission unit 47 to the receiver 60. Although the transmitter 47 FM-modulates the data and transmits it through the antenna 48, it may be transmitted by infrared rays. The reason why the data is transmitted by electromagnetic waves is that the receiver 60 can surely receive the lamp data and the like on the towed vehicle 2 side without having much directivity.

Next, the operation of the receiver 60 side installed in the towed vehicle 2 will be described. The receiving unit 70 including an FM demodulator receives a signal from the transmitter 40 installed in the towing vehicle 1 through the antenna 71. When the header section is received from the data demodulated by the receiving section 70 and the header section can be correctly received, the ID code detecting section 64 of the control device 61 then detects the ID code data. Here, the receiver 60 side stores the first received ID code in the memory 63 as its own ID code,
This stored own ID code data and the I received this time
The lamp data is accepted only when the ID code matching unit 66 matches the D code data.

When the ID codes match, the subsequent lamp data is detected by the data detector 65, and the data collator 6
In 7, the lamp data and the inverted data thereof are collated, and if they match, the control unit 62 sends the data to the lamp data output unit 68, assuming that the lamp data is correct. The lamp data output unit 68 sequentially outputs the lamp drivers 21 to 24 and 5 based on the lamp data.
To each lamp 25-
29 turns on or off.

In FIG. 10, the transmitter 40 is detachably installed on the towing vehicle 1 via the magnet rubber plate 33, and the sensors 11 to 14 and 5 mounted on the tip of each cord 34 from the transmitter 40.
2 shows a state in which the tape 2 is detachably attached with a tape as in the previous embodiment. The transmitter 40 and the receiver 60
The antennas 48 and 71 may be expandable rod antennas, or vinyl wires may be used as the antennas.

In FIG. 11, receivers 60a and 60b divided into left and right coating surfaces on the left and right coating surfaces of the trunk 9 of the towed vehicle 2 are magnet rubber plates 33 or suction cups or magnet rubber plates 33 as in the previous embodiment. And the case where they are detachably installed via a suction cup. Note that, as shown in FIG. 11, when the receiver 60 is divided into left and right, a control device 61, a battery, and the like are required. Therefore, it is costly to use one receiver 60 as shown in FIG. It is also advantageous in terms of design. In FIG. 12, the right stop lamp 26 and the left stop lamp 27 are integrated into one stop lamp 7.
3, the right blinker lamp 25 is arranged on the right side of the stop lamp 73, and the left blinker lamp 28 is arranged on the left side. The back lamps 29 are also provided on the left and right. Figure 1
The receiver 60 of the type shown in FIG. 2 is installed in the central portion of the upper surface of the trunk 9 of the towed vehicle 2. Further, FIG. 13 shows a state in which the transmitter 40 is detachably installed on the rear part of the towing vehicle 1 via the magnet rubber plate 33. Also in this embodiment, the receivers 60 and 6 are similar to the previous embodiment.
The magnet rubber plate 33 may be fixed to the lower surfaces of the surfaces 0a and 60b with an adhesive or the like, or may be separate when the case is made of metal.

Further, FIG. 14A shows a case where the receiver 60 is installed on the upper surface of the trunk 9 of the towed vehicle 2 via the magnet rubber plate 33. Generally, the trunk 9 is lowered toward the rear. Is inclined to. Therefore, when the magnet rubber plate 33 having a constant thickness as shown in FIG. 14B is used, when the lamps 25, 73, 28 and 29 have directivity, the light irradiation direction is slightly downward, It may happen that the lights of the lamps 25, 73, 28, and 29 are difficult for the driver of the following vehicle to see.

Therefore, as shown in FIG. 15, when the magnet rubber plate 33 is installed, the inclined surface 35 is formed on the lower surface so that the thickness becomes thicker toward the rear, and the magnet rubber plate 33 is installed on the upper surface of the trunk 9. Then, the upper surface of the magnet rubber plate 33 is made substantially horizontal. Therefore, when the receiver 60 is installed on the upper surface of the magnet rubber plate 33, each of the lamps 25, 73, 2
The direction of irradiation of the light from 8 and 29 becomes substantially horizontal, which can be made very visible to the driver of the following vehicle, and the following vehicle can be prevented from colliding with the towed vehicle 2 to further improve safety. be able to. In addition, it is possible to easily cope with the towed vehicle 2 having different inclination angles of the trunk 9 by preparing in advance several kinds of magnet rubber plates 33 having different inclination angles of the inclined surface 35. Further, the receiver 60 is not limited to the upper surface of the trunk 9 of the towed vehicle 2, but may be disposed inside the glass at the rear part of the inside of the towed vehicle 2.

Further, at the transmitter 40 side or the receiver 60 side, if either the right stop lamp 6 or the left stop lamp 8 is cut off as in the previous embodiment, the right stop lamp of the receiver 60 is turned off. 26 or the left stop lamp 27 does not light up and remains in the off state. Therefore, in FIG. 5, the signals on the input side or the output side of the comparators 16 and 17 in the transmitter 40 are OR-configured, and in FIG. 6, the input sides of the lamp drivers 22 and 23 in the receiver 60 are shown. Alternatively, the signal on the output side has an OR configuration, and even if either of the stop lamps 6 and 8 is cut off, both the right stop lamp 26 and the left stop lamp 27 of the receiver 60 on the towed vehicle 2 side, or the stop lamp 73. The whole can be turned on. As a result, it is possible to reliably prevent the following vehicle from colliding with the towed vehicle 2 that is being towed and traveling.

Further, as in the previous embodiment, the reference values of the comparators 16 and 17 shown in FIG.
When the stop lamps 6 and 8 of the towing vehicle 1 are turned on, the stop lamp 2 of the receiver 60 on the towed vehicle 2 side is turned on.
The brightness of 6 and 27 can be switched between the number of light emitting diodes and the lamp voltage, or can be displayed in two levels according to the number of lamps (so-called small lighting (tail light lighting) and brake lighting).
It may be done.

Further, as shown in FIG. 17, the present invention can be applied to the case where the towing vehicle 1 as the trailer is the towed vehicle 2 as the trailer house. Tow vehicle 1
The transmitter 40 is installed on the towed vehicle 2 and the receiver 60 is installed on the towed vehicle 2. In this case, since the towed vehicle 2 is long, only the turn signal lamp is provided on the side surface of the towed vehicle 2. May be provided. In this case, only the blinker lamps 25 and 28 may be connected in parallel from the receiver 60 with a cable, or only the control device 61 and the lamp drivers 21 and 24 may be provided in parallel.

As described above, in this embodiment, both the towing vehicle 1 and the towed vehicle 2 are simply provided with the transmitter 40 for the tow vehicle 1 and the receiver 60 for the tow vehicle 2 without any processing. Can be detachably attached to the
The turn signal lamp, the stop lamp, and the back lamp of the towing vehicle 1 can be turned on, turned off, and blinked in real time in response to lighting, turning off, and blinking of the back lamp. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2.

In this embodiment, the ID code is given to the towing vehicle 1 and the towed vehicle 2, but only the lamp data of the towing vehicle 1 is transmitted from the transmitter 40 without using the ID code. On the towed vehicle 2 side, the blinker lamp, the stop lamp, the back lamp, etc. may be turned on and off only by the lamp data received by the receiver 60. However, it is a preferable example that ID codes are given to the transmitter 40 and the receiver 60 for transmission and reception. That is, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the following vehicle do not malfunction without malfunction. This is because the state of the towed vehicle 2 can be notified.

(Third Embodiment) Further, the vehicle rear-end collision prevention device of the present invention includes a small lamp automatic lighting device 80 as shown in FIG. That is, the small lamp automatic lighting device 80 includes an external light sensor 81 that detects the brightness of external light, a comparator 82 that detects the level from the external light sensor 81, and outputs lamp data that is turned on or off. Various lamp drivers 83 to 85, 22, 23 driven by the output of the comparator 82 (for example, H level signal), and the lamp driver 83,
A right vehicle width lamp 86 and a left vehicle width lamp 87 that are lit by 84, and a right stop lamp 26 and a left stop lamp 2 that are small lit by the lamp drivers 22 and 23.
7, a license plate lamp 88 and the like which is turned on by the lamp driver 85. The external light sensor 81 is composed of, for example, a CdS (photoconductive) element.

The small lamp automatic lighting device 80.
Is a device for turning on the so-called small lights (turning on the tail lights) when the surroundings become dim. Therefore, the right stop lamp 26 and the left stop lamp 27 used in each of the above embodiments are turned on by the small lights. There is. That is, since the right stop lamp 26 and the left stop lamp 27 are composed of a large number of light emitting diodes or a plurality of lamps as described above, the number of light emitting diodes or lamps provided is reduced by half or a low voltage is applied. Is applied to turn on the small lights. Since these techniques are well-known matters, detailed description will be omitted.

The right vehicle width lamp 86 is removably mounted on the right side surface of the towed vehicle 2, and the left stop lamp 27 is removably mounted on the left side surface of the towed vehicle 2 by the above-mentioned magnet rubber plate 33 or sucker. Therefore, when the towed vehicle 2 has a large width, the right vehicle width lamp 86 and the left stop lamp 27 can be attached to further improve the safety. further,
The license plate lamp 88 is for illuminating the license plate of the towed vehicle 2, and is detachably attached to the vicinity of the license plate by a magnet rubber plate 33 or a suction cup.

When the towed vehicle 2 is being towed by the towed vehicle 1 and the surroundings are still bright, the external light sensor 81 outputs, for example, a low level analog signal, and therefore the comparator 82 is turned on. Without the comparator 82
Output is at L level. As a result, the lamp drivers 83 to 85, 22 and 23 are not driven, and the lamps 86 to 88, 26 and 27 are in the off state.

The ambient light becomes dark and the output of the external light sensor 81 becomes high level, and the comparator 82 is turned on and outputs a signal of H level. As a result, each lamp driver 8
3 to 85, 22, 23 are driven, and each lamp 86 to 8
Turn on 8, 26 and 27. When this lamp, especially the right stop lamp 26 and the left stop lamp 27 are turned on (taillights are turned on), a small lighting state is achieved.

The small lamp automatic lighting device 80.
Although the right vehicle width lamp 86, the left vehicle width lamp 87, the license plate lamp 88, etc. are not provided in particular, it is preferable to provide them from the viewpoint of safety. Further, the power source of the small lamp automatic lighting device 80 also uses a rechargeable battery.

When the driver of the towing vehicle 1 forgets to turn on the small lights (tail lights) even though the surroundings are dim, the receiver 6 attached to the towed vehicle 2
Since the right stop lamp 26 and the left stop lamp 27 of 0 are not lit, safety is lacking. But,
In the present embodiment, even when the towing vehicle 1 side forgets to turn on the small light, the ambient light sensor 81 of the small lamp automatic lighting device 80 detects the surrounding light and dark, and the right stop lamp 26 and Since the left stop lamp 27 is lit by the tail lamp (small lighting), the safety can be further improved.

The small lamp automatic lighting device 80 is naturally provided in the vehicle rear-end collision prevention device in the first and second embodiments.

As another example of applying the wired or wireless rear-end collision prevention device in each of the above-described embodiments of the present invention, the present invention is also applied to the case where an ordinary passenger car pulls a watercraft or the like. be able to.

As described above, in the present invention, the rear-end collision prevention device can be simply and removably attached to the towing vehicle 1 and the towed vehicle 2 without any processing of the towing vehicle 1 and the towed vehicle 2. Therefore, the turn signal lamps and the stop lamps of the towed vehicle 2 can be turned on, turned off, and blinked in real time in response to the turn signal lamps and the stop lamps of the towing vehicle 1 being turned on, turned off, and blinking. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2. Further, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the succeeding vehicle do not malfunction. The state of the towed vehicle 2 can be notified.

[0077]

According to the vehicle rear-end collision prevention device of the first aspect of the present invention, the towed vehicle side towed by the towing vehicle is provided with a stop lamp depending on whether the tow vehicle is turned on or off. Since the towing vehicle succeeds the trailing vehicle to recognize the depression of the brake, the trailing vehicle can prevent the trailing vehicle from colliding with the towing vehicle.

According to the vehicle rear-end collision prevention device of the second aspect, when the towed vehicle that is being towed by the tow vehicle blinks either of the left and right turn signal lamps of the tow vehicle, the tow vehicle side turn signal lamps. One of the blinker lamps on the towed vehicle side blinks according to the blinking of, and it is possible to recognize whether the vehicle following the towed vehicle will turn to the left or right of the towed vehicle, and to the towed vehicle of the following vehicle. It is possible to prevent a rear-end collision.

According to the vehicle rear-end collision prevention device of the third aspect, the towed vehicle side towed by the tow vehicle is turned on and off by the stop lamp of the tow vehicle, and the turn signal lamp of the tow vehicle is turned on. By turning on / off the stop lamp and blinking the blinker lamp according to the blinking state of, the following vehicle of the towed vehicle can recognize information such as the brake pedal state of the towed vehicle and whether to turn left or right. ,
It is possible to reliably prevent a rear-end vehicle from colliding with the towed vehicle.

According to another aspect of the vehicle rear-end collision prevention device of the present invention, the sensor is arranged on the side of the towing vehicle, the turn signal lamp and the stop lamp are arranged on the rear portion of the towed vehicle, and they are connected by wire. Therefore, the detection signal from each sensor can be sent to the blinker lamp side or the stop lamp side without malfunction, and the cost can be reduced.

According to the vehicle rear-end collision prevention device of the fifth aspect, since the case containing the winker lamp and the stop lamp is detachably installed on the towed vehicle by the magnetic rubber plate, the winker lamp and the stop lamp are installed. The case containing the lamp can be detachably installed on the part of the towed vehicle that is easily visible from the following vehicle, and the magnet rubber plate can be installed without damaging the painted surface of the towed vehicle.

According to the vehicle rear-end collision prevention device of the sixth aspect, the transmitter is installed on the side of the towing vehicle, and the receiver is installed on the side of the towed vehicle at a position that can be easily seen from the following vehicle. Transmitting the stop lamp lighting, extinguishing state and blinker lamp blinking state from the transmitter to the receiver, so that the following vehicle can grasp the state of the towing vehicle and prevent the trailing vehicle from colliding with the towed vehicle. You can

According to the vehicle rear-end collision prevention device of the seventh aspect, the transmitter is installed on the side of the towing vehicle, and the receiver is installed on the side of the towed vehicle at a position where it is easily seen by the following vehicle. Transmitting the stop lamp lighting, extinguishing state and blinker lamp blinking state from the transmitter to the receiver, so that the following vehicle can grasp the state of the towing vehicle and prevent the trailing vehicle from colliding with the towed vehicle. You can Also, since the ID code is used to identify itself, even if a similar rear-end collision prevention device is used nearby, the following vehicle can be informed of the state of the towing vehicle without malfunction. is there.

According to the vehicle rear-end collision prevention device of the present invention, since the output of the sensor for turning on and off the stop lamp of the sensors is a logical sum output, one of the stop lamps of the towing vehicle is cut off. However, the stop lamps on the towed vehicle side can be turned on at the same time, and the following vehicles can further recognize the states of the towed vehicle and the towed vehicle. Thereby, the prevention of a rear-end collision can be further improved.

According to the vehicle rear-end collision prevention device of the present invention, since the transmitter and the receiver are detachably installed on the towing vehicle and the towed vehicle through the magnet rubber plate, respectively.
The transmitter and receiver can be installed anywhere on the towing vehicle and towed vehicle for ease of use, and the magnetic rubber plate allows the receiver to be installed detachably without damaging the painted surface of the towed vehicle. it can.

According to the vehicle rear-end collision prevention device of the tenth aspect, since the magnet rubber plate is formed with an inclined surface on the lower surface of the magnet rubber plate so as to become thicker toward the rear, The upper surface of the trunk of the rear part of the towing vehicle is generally inclined downward toward the rear, but by using the magnet rubber plate, especially when a directional member is used for the stop lamp or the blinker lamp. In addition, the following vehicle can recognize the lighting, extinguishing, and blinking states well, and can prevent a rear-end collision.

According to the vehicle rear-end collision prevention device of the eleventh aspect, even if the driver of the towing vehicle forgets to turn on the tail lamp (small lamp) when it is dusk in the evening,
The lamp can be automatically turned on by the output of the external light sensor, and the succeeding vehicle can recognize the lighting of the towed vehicle lamp and further improve safety.

[Brief description of drawings]

FIG. 1 is a block diagram of a rear-end collision prevention device according to a first embodiment of the present invention.

FIG. 2 is a rear view of the towing vehicle showing a state in which the sensor according to the first embodiment of the present invention is attached.

FIG. 3 is a rear view of the towed vehicle showing a state in which the rear-end collision prevention device according to the first embodiment of the present invention is attached.

FIG. 4 is a side view of a case where the towing vehicle pulls the towed vehicle with the rear-end collision prevention device according to the first embodiment of the present invention attached.

FIG. 5 is a block diagram of a transmitter according to a second embodiment of the present invention.

FIG. 6 is a block diagram of a receiver according to a second embodiment of the present invention.

FIG. 7 is a diagram showing a data format according to the second embodiment of the present invention.

FIG. 8 is a diagram showing a data transfer order according to a second embodiment of the present invention.

FIG. 9 is a diagram showing pulse signals of a header section and a data section according to the second embodiment of the present invention.

FIG. 10 is a rear view of the towing vehicle showing a state in which the transmitter according to the second embodiment of the present invention is attached.

FIG. 11 is a rear view of the towed vehicle showing a state in which the receiver according to the second embodiment of the present invention is attached.

FIG. 12 is a perspective view showing another example of a receiver according to the second embodiment of the invention.

FIG. 13 is a diagram showing a state in which a transmitter is attached to the towing vehicle according to the second embodiment of the present invention.

FIG. 14A is a diagram showing a state in which a receiver is attached to a towed vehicle via a magnet rubber plate according to the second embodiment of the present invention. FIG. 6B is a side view of the magnet rubber plate according to the second embodiment of the present invention.

FIG. 15A is a diagram showing a state in which a receiver is attached to a towed vehicle in another embodiment of the present invention via a magnet rubber plate of another example. (B) is a side view of the magnet rubber plate of another example in the 2nd Embodiment of this invention.

FIG. 16 is a diagram showing a state in which a rear-end collision prevention device according to a second embodiment of the present invention is attached and a towing vehicle pulls a towed vehicle.

FIG. 17 is a diagram showing a state where a tow vehicle of another example of the second embodiment of the invention is towing a towed vehicle.

FIG. 18 is a block diagram of a small lamp automatic lighting device according to a third embodiment of the present invention.

FIG. 19 is a diagram showing a state in which a tow vehicle of a conventional example is towing a towed vehicle.

FIG. 20 is a diagram showing a state in which another conventional tow vehicle is towing a towed vehicle.

[Explanation of symbols]

1 towing vehicle 2 towed vehicle 5 Right turn signal 6 Right stop lamp 7 Left turn signal 8 left stop lamp 11 Right turn signal sensor 12 Right stop lamp sensor 13 Left stop lamp sensor 14 Left turn signal sensor 15-18 Comparator 25 Right turn signal lamp 26 Right stop lamp 27 Left stop lamp 28 Left turn signal lamp 30 cases 31 cases 33 magnet rubber plate 35 inclined surface 40 transmitter 41 Control Unit (MPU) 46 ID code generator 47 transmitter 60 receiver 61 Control Unit (MPU) 70 Receiver 80 Small lamp automatic lighting device 81 External light sensor

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[Procedure amendment]

[Submission date] April 26, 2002 (2002.4.2)
6)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Rear-end collision prevention device for vehicle

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear-end collision prevention device for preventing rear-end collision with a towed vehicle towed by a tow vehicle.

[0002]

2. Description of the Related Art When a vehicle breaks down on an open road and cannot drive by itself, or when a vehicle illegally parked in a parking prohibited area is towed by a tow truck, these vehicles are towed by a towing vehicle. I often see towing and running. FIG. 19 shows a trailer 3 connected to the towing vehicle 1.
20 shows a state in which the towed vehicle 2 is mounted on the vehicle, and FIG. 20 shows that the towed vehicle 2 is lifted by the towing device 4 provided at the rear portion of the towed vehicle 1 to travel. It shows the state of being.

When the towed vehicle 2 travels while being towed by the towed vehicle 1, if the towed vehicle 2 is a defective vehicle, there is a driver, so the vehicle will travel at a relatively slow speed while blinking the hazard lamp. There is. Further, in the case of illegal parking, since there is no driver, the door cannot be opened, and therefore, it is the current situation that the towed vehicle 2 is being towed while the hazard lamps and the like are not blinking.

[0004]

When the vehicle illegally parked is towed, the blinker lamps and stop lamps on the left and right rear surfaces of the towing vehicle 1 blink according to the operation of the driver of the towing vehicle 1. Lighting is performed. However, the turn signal lamps and stop lamps of the towed vehicle 2 are not blinked or lit at all, and the driver of the following vehicle does not know whether the tow vehicle 1 in front of the vehicle is turning right or left, or is braking. Not knowing, there was a problem that the following vehicle would collide with the towed vehicle 2 or the possibility of a rear collision would be extremely high.

Further, even if the towed vehicle 2 is a malfunctioning vehicle and the hazard lamp (winker lamp) is blinking to notify the succeeding vehicle of the situation in which the towed vehicle 2 is being towed, the blinker lamp is simply Just by blinking, the situation of whether the driver of the towing vehicle 1 makes a right turn or a left turn, or whether the brake is stepped on is completely unknown to the following vehicle as in the above, and there is a possibility of a rear-end collision.

[0006] Further, in the special towing vehicle 1, there is a vehicle in which the width of the rear portion is slightly wide so that the blinker lamp and the stop lamp can be seen.
There is a comparatively large distance from the position of the turn signal lamps and stop lamps to the rear part of the towed vehicle 2, and it is difficult for the following vehicles to get a sense of distance. Especially, in the evening and night, or in the case of rain, There is a problem in that the operating state of the towed vehicle 2 is difficult to understand and there is a high possibility that a succeeding vehicle may collide with the towed vehicle 2 at a rear end.

The present invention has been made in view of the above-mentioned problems, and the following display states are provided by displaying the same display state as the blinker lamp and the stop lamp of the towing vehicle on the rear portion of the towed vehicle. To provide a vehicle rear-end collision prevention device for the purpose of preventing rear-end collision of a vehicle with a towed vehicle.

[0008]

Therefore, in the vehicle rear-end collision prevention device according to claim 1 of the present invention, the towing vehicle 1 is used to prevent the collision.
After the towed vehicle 2 towed behind the tow vehicle 1
A winker lamp of the towing vehicle 1 and
Interlocking blinking and lighting of indicator lights such as stop lamps
The rear-end collision prevention device for vehicles
And the sensors 11 to 14 for detecting turn-on and turn-off of the turn signal lamps 5 and 7 and the stop lamps 6 and 8 of the towing vehicle 1.
The blinker lamps 5 and 7 of the towing vehicle 1 and
The sensor 11 is detachably attached to the plumbing 6, 8 side.
To analog output of the comparators 15 to 18 for converting the analog output of the digital output to digital output , and the output data of the comparators 15 to 18 are sequentially and constantly read so that the output data is
A control device 41 that generates the ramp data and the inverted data of the ramp data when the output data of this time and the output data of this time match, and a transmission unit that wirelessly transmits a signal from the control device 41. detachably to the towing vehicle 1 and 47
Constitute a transmitter 40 disposed, a receiving unit 70 that receives signals from the transmitter 40, and the ramp data captures reversal data of ramp data and the lamp data from the signal from the receiver 70 Match with the inverted data
And the blinker lamps 25 and 28 that turn on and off according to the lamp data from the control device 61 and the stop device that outputs the lamp data without error such as turning on and off. With lamps 26 and 27
The receiver 60 is detachably arranged on the towed vehicle 2.

With this structure, the transmitter 40 is detachably installed on the towing vehicle 1 side, and the receiver 60 is detachably installed on the towed vehicle 2 side at a position that is easily seen by the following vehicle. The transmitter 40 transmits to the receiver 60 the lighting and extinguishing states of the stop lamps 6 and 8 of the towing vehicle 1 and the blinking state of the blinker lamps 5 and 7 so that the following vehicle can grasp the state of the towing vehicle 1. A rear-end collision of the following vehicle with the towed vehicle 2 can be prevented. In addition, the controller 41 on the transmitter 40 side
The output data of the comparators 15 to 18 are sequentially
Also, the output data is always read and the output data is the same as the previous output data.
If the output data this time matches the lamp data and the
I am trying to generate the inverted data of the ramp data
Thus, the probability of lamp data error can be reduced. Furthermore
In the control device 61 on the receiver 60 side, the receiving unit 7
Ramp data and inversion of the ramp data from the signal from 0
The data is taken in and this ramp data and its inversion data
If you check and match, you can make a mistake such as turning on or off
It can be output as no lamp data.

As described above, in the present invention, the towing vehicle 1 and the to-be-checked
Without additional processing on both the pulling wheel 2
The stop device can be easily and detachably attached to the towing vehicle 1 and towed vehicle 2.
The turn signal of the towing vehicle 1 can be attached.
Responding according to whether the lamp or stop lamp is on, off, or blinking.
Turn signal lamps and stop lights of the towed vehicle 2 in real time
Lights can be turned on, off, or blinking. According to
And the following vehicle running behind the towed vehicle 2 is the towed vehicle.
The risk of collision with 2 can be largely eliminated.

In the vehicle rear-end collision prevention device according to the second aspect of the present invention, the vehicle is towed by the towing vehicle 1 at a position behind the towing vehicle 1.
The towing is performed by a device provided on the rear side of the towed vehicle 2.
Indicating lights such as turn signal lamps and stop lamps of car 1
Vehicles that display blinking and lighting indicators in conjunction with each other
In both the rear-end collision prevention devices, the sensors 11 to 14 for detecting turn-on and turn-off of the turn signal lamps 5 and 7 and the stop lamps 6 and 8 of the towing vehicle 1 are connected to the turn signal of the towing vehicle 1.
Removable on the side of lamps 5 and 7 and stop lamps 6 and 8
When mounted, the comparators 15 to 18 for converting the analog outputs of the sensors 11 to 14 into digital outputs and their own I
An ID code generator 46 for creating a D code, output data of the comparators 15 to 18 and an ID code generator 4
The ID code data from No. 6 is sequentially and constantly read so that the output data is the previous output data and the current output data.
The lamp data and the lamp data
Inverted data, and a control unit 41 for generating an ID code data, it constitutes a transmitter 40 which is detachably disposed on the tractor 1 by a transmitter 47 for transmitting a signal from the control unit 41 wirelessly, A receiving unit 70 that receives a signal from the transmitter 40, and ID code data is taken from the signal from the receiving unit 70. If the ID code data matches the own ID code, the signal from the receiving unit 70 is ramped
Data and the inverted data of the lamp data
If the pump data and its inverted data are collated and matched,
Control device 6 that outputs as lamp data without error
1, the lighting in accordance with the lamp data from the control device 61, to constitute a turn signal lamp 25, 28 and the stop lamp 26 and a receiver 60 that the detachably arranged on the towing vehicle 2 in extinguished It is characterized by being.

With this configuration, the transmitter 40 is detachably installed on the towing vehicle 1 side, and the receiver 60 is detachably installed on the towed vehicle 2 side at a position that is easily seen by the following vehicle. The transmitter 40 transmits to the receiver 60 the lighting and extinguishing states of the stop lamps 6 and 8 of the towing vehicle 1 and the blinking state of the blinker lamps 5 and 7 so that the following vehicle can grasp the state of the towing vehicle 1. A rear-end collision of the following vehicle with the towed vehicle 2 can be prevented. Further, since the ID code is used to identify itself, the following vehicle can be informed of the state of the towing vehicle 1 without malfunction even if a similar rear-end collision prevention device is used nearby. Is. Well
Also, in the control device 41 on the transmitter 40 side,
The output data of the data 15 to 18 are sequentially and constantly read.
The output data is the previous output data and the current output data.
If and match, the lamp data and the lamp data
Since the conversion data is generated, the ramp data
The probability of error can be reduced. Furthermore, the receiver 60 side
In the control device 61, the signal from the receiving unit 70
Sample data and the inverted data of the lamp data
This lamp data and its inverted data are collated and matched.
If there is no mistake in lighting data,
Can be output.

As described above, in the present invention, the towing vehicle 1 and the to-be-checked
Without additional processing on both the pulling wheel 2
The stop device can be easily and detachably attached to the towing vehicle 1 and towed vehicle 2.
The turn signal of the towing vehicle 1 can be attached.
Responding according to whether the lamp or stop lamp is on, off, or blinking.
Turn signal lamps and stop lights of the towed vehicle 2 in real time
Lights can be turned on, off, or blinking. According to
And the following vehicle running behind the towed vehicle 2 is the towed vehicle.
The risk of collision with 2 can be largely eliminated.

According to another aspect of the vehicle rear-end collision prevention device of the present invention, the receiver 60 side first receives from the transmitter 40.
Receiving the received ID code as its own ID code
It is characterized in that it is stored in the memory 63 of the machine 60 .

[0015] In a rear-end collision preventing apparatus for a vehicle according to claim 4, wherein the transmitter 40 and the receiver 60 are magnetic rubber plate 3
3 or via the front at least one of the suction cups
Serial tractor 1 and the is characterized in that it is detachably installed respectively towed vehicle 2.

As a result, the transmitter 40 and the receiver 60 can be installed at any desired positions on the towing vehicle 1 and the towed vehicle 2 and are convenient to use. Moreover, the painted surface of the towed vehicle 2 is particularly improved by the magnet rubber plate 33 and the suction cup. The receiver 60 can be detachably installed without damaging the.

In the vehicle rear-end collision prevention device according to the present invention, the magnet rubber plate 33 has an inclined surface 35 formed on the lower surface of the magnet rubber plate 33 so that the magnet rubber plate 33 becomes thicker toward the rear. Is characterized by.

As a result, the upper surface of the rear trunk of the towed vehicle 2 generally inclines downward toward the rear. However, by using the magnet rubber plate 33, the stop lamps 26, 27 and the winkers are particularly used. If a directional member is used for the lamps 25 and 28, it will be lit from the following vehicle,
The off and blinking states can be recognized well and a rear-end collision can be prevented.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 4 show a first embodiment, FIG. 1 shows a block diagram of a rear-end collision prevention device, and FIG. 2 shows a rear surface of a towing vehicle 1. On the left and right sides of the rear surface of the towing vehicle 1, as is well known, a right blinker 5, a right stop lamp 6, a left blinker 7,
A left stop lamp 8 and a back lamp 51 are provided respectively.

A right winker sensor 11 is detachably attached to the surface of the right winker 5 of the towing vehicle 1, and a left winker sensor 14 is detachably attached to the surface of the left winker 7. A right stop lamp sensor 12 is detachably attached to the surface of the right stop lamp 6 of the towing vehicle 1, and a left stop lamp sensor 13 is detachably attached to the surface of the left stop lamp 8. . Further, the back lamp sensors 52 are detachably attached to the surfaces of the back lamps 51 on both sides.

These sensors 11 to 14 and 52 are composed of visible light conductive elements and constantly detect the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51, and as shown in FIG. It is sent to each comparator 15 to 19 in the subsequent stage. In each of the comparators 15 to 19, each of the turn signals, the stop sensors 11 to 14 and the back lamp sensor 52.
Detection signal, that is, each lamp 5-8, 51 of the towing vehicle 1
When is turned on, for example, an H level signal is output, and when the lamps 5 to 8 and 51 are turned off, for example, the comparators 15 to 19 output an L level signal. Further, in response to the blinking of the right turn signal 5 and the left turn signal 7 of the towing vehicle 1, the comparator 1 is detected by the detection signals of the right turn signal sensor 11 and the left turn signal sensor 14.
Signals of H level and L level are alternately output from 5 and 18.

The signals from the comparators 15 to 19 are input to the lamp drivers 21 to 24 and 53, and the lamps 25 to 25 are output by the lamp drivers 21 to 24 and 53.
Up to 29 are turned on, turned off, and blinked.
Here, the right blinker lamp 25 with the lamp driver 21.
Is blinked, and the left blinker lamp 28 is blinked by the lamp driver 24. Further, the right stop lamp 26 is turned on and off by the lamp driver 22, and the left stop lamp 27 is turned on and off by the lamp driver 23. Further, the lamp driver 53
The back lamp 29 is turned on and off.

Although each of the lamps 25 to 29 is composed of a large number of light emitting diodes, a blinker lamp or a stop lamp used in a general automobile may be used. A battery (not shown) is used as the power source of the rear-end collision prevention device shown in FIG. For example, a battery that can be used for 8 hours is used in a state in which each of the lamps 25 to 29 is turned on, turned off, and blinked. Further, this battery is of a rechargeable type, and is fully charged before use to have the above-mentioned 8-hour specification. Of course, when the towed vehicle 2 travels a short distance, the operating time may be shortened to reduce the battery capacity to reduce the cost.

Next, the structure of the rear-end collision prevention device will be described. The comparators 15-19, the lamp drivers 21-24, 53 and the lamps 25-29 shown in FIG.
Each of the sensors 11 to 14 and 52 is connected to the respective cases 11 to 14 and 52 via a cable 32 (see FIG. 4). In addition,
In FIG. 1, the back lamp sensor 52 and the comparator 1
9, only one system of the lamp driver 53 and the back lamp 29 is shown, but actually two systems are provided depending on the left and right. As shown in FIG. 3, a case 30 is arranged on the right side of the upper surface of the trunk 9 at the rear of the towed vehicle 2.
The other case 31 is attached to the left side of the upper surface of the.
In the case 30, the comparators 15, 16, 19 and the lamp drivers 21, 22, 53, the right blinker lamp 2 are provided.
5, a right stop lamp 26, a back lamp 29, and a battery for power supply are stored. A right blinker lamp 25 is arranged on the right side of the back surface of the case 30, a right stop lamp 26 is arranged in the center, and a back lamp 29 is arranged on the left side.

In the case 31, the comparators 17, 18, 19 and the lamp drivers 23, 24 shown in FIG.
53, left stop lamp 27, left blinker lamp 28,
A back lamp 29 and a battery for power supply are stored. The left blinker lamp 28 is on the left side of the back of the case 31.
, A left stop lamp 27 is arranged in the center, and a back lamp 29 is arranged on the right side. The case 30 is connected to the back lamp sensor 52, the right turn signal sensor 11 and the right stop lamp sensor 12 mounted on the towing vehicle 1 side via three cables 32.
The case 31 is connected to the back lamp sensor 52, the left stop lamp sensor 13 and the left turn signal sensor 14 via three cables 32.

Each of the sensors 11 to 14 and 52 is directly and detachably attached to the surface of each of the lamps 5 to 8 and 51 of the towing vehicle 1 with a tape or the like so as not to be easily peeled off by vibration during traveling. There is. Of course, other methods may be used to attach the sensors 11 to 14 and 52. The cases 30 and 31 are mounted on the upper surface of the trunk 9 of the towed vehicle 2 by using the magnet rubber plate 3
3 is used. The magnet rubber plate 33 is made of a strong magnet and rubber integrated with each other so as to be soft so as not to scratch the painted surface of the vehicle (the towed vehicle 2), and the cases 30, 31
Is detachably and firmly fixed to the towed vehicle 2. It should be noted that a power switch for turning on / off a power source from a battery (not shown) to each unit is omitted. When the cases 30 and 31 are made of synthetic resin, the case 3
The magnet rubber plate 33 is fixed to the lower surfaces of the Nos. 0 and 31 with an adhesive or the like. When the case 30 and 31 was made of metal, the case 30 and 31 separately to and even better than the magnetic rubber plate 33, The case 30 a magnet rubber plate 33 with an adhesive,
It may be fixed to the lower surface of 31.

The magnet rubber plate 33 is used to detachably mount the cases 30 and 31 on the painted surface of the towed vehicle 2.
It is not limited to. For example, the cases 30 and 31 may be attached to the towed vehicle 2 via rubber suction cups (one or more).
Alternatively, a suction cup may be used on the lower surface of the magnet rubber plate 33.

Next, the operation of the rear-end collision prevention device of this embodiment will be described. First, as shown in FIG. 4, setting is performed so that a towed vehicle 2, such as a vehicle having a trouble or an illegally parked vehicle, can be towed by the tow vehicle 1. Next, as shown in FIG. 3, the towed vehicle 2 is installed on the upper surface of the rear trunk 9 via the magnet rubber plates 33, respectively. The back lamp sensor 5 connected to the case 30 via the cable 32
2. The right winker sensor 11 and the right stop lamp sensor 12 are attached to the back lamp 51, the right winker 5 and the right stop lamp 6 of the towing vehicle 1 with tapes, respectively.
Further, the back lamp sensor 52 and the left stop lamp sensor 1 which are connected to the case 31 via the cable 32.
3 and the left turn signal sensor 14 are attached to the back lamp 51, the left stop lamp 8 and the left turn signal 7 of the towing vehicle 1 with tapes, respectively. With this, the towing vehicle 1 of the rear-end collision prevention device
And, the attachment to the towed vehicle 2 is completed.

When the driver of the towing vehicle 1 blinks the right blinker 5 of the towing vehicle 1 when the driver of the towing vehicle 1 makes a right turn, for example, when the driver drives the towed vehicle 2 by pulling the towed vehicle 2, the right blinker 5 of the right blinker 5 is turned on. The right blinker sensor 11 detects the blinking in response to the blinking. The detection signal of the right winker sensor 11 is input to the comparator 15 in the case 30, and the lamp driver 21 causes the right winker lamp 25 to blink in real time. Further, even when the left blinker 7 blinks, the left blinker sensor 14 detects this and similarly, the comparator 18 and the lamp driver 24
The left blinker lamp 28 is blinked in real time via.

Further, when the driver of the towing vehicle 1 depresses the brake, the right stop lamp 6 and the left stop lamp 8 are lit, and this lighting is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13. The comparators 16 and 17 and the lamp drivers 22 and 2, respectively.
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned on in real time via 3. When the driver of the towing vehicle 1 releases his / her foot from the brake, the right stop lamp 6 and the left stop lamp 8 are extinguished, so this extinction is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13, respectively. 17
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned off in real time via the lamp drivers 22 and 23.

Further, when the towing vehicle 1 and the towed vehicle 2 are backed, the back lamp 51 of the towing vehicle 1 is turned on. Therefore, the back lamp sensor 52 detects the turning on, and the comparator 19 and the lamp driver 53 are used. Towed vehicle 2
The back lamp 29 on the side lights up. When the retraction of the towing vehicle 1 and the towed vehicle 2 is stopped, the back lamp sensor 52 detects that the back lamp 51 is off, and the back lamp 29 on the towed vehicle 2 side is turned off.

As described above, in this embodiment, the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51 of the towing vehicle 1 are controlled by the rear surface of the towed vehicle 2 towed by the towing vehicle 1. Since the lights 25, 29, 29 are turned on, turned off, and blinked in real time, for a person who is driving a vehicle following the towed vehicle 2, it is possible to indicate the direction of the towed vehicle 1, step on the brakes, and move backward. It is possible to recognize the situation and reliably prevent the following vehicle from colliding with the towed vehicle 2.
Since the cables 32 are connected between the sensors 11 to 14 and 52 and the cases 30 and 31 side by radio, not by radio, the risk of malfunction due to disturbance can be eliminated. Also, the cost can be reduced.

Since the detection signals from the right stop lamp sensor 12 and the left stop lamp sensor 13 are input to the comparators 16 and 17 as analog values, the reference values of the comparators 16 and 17 are set in two steps. If you leave it, you can also turn on the stop lamp in the evening. In such a case, the stop lamp 26,
The degree of lighting (brightness) of 27 depending on the voltage or the number
To be variable.

Further, when either of the stop lamps 6 and 8 of the towing vehicle 1 is burnt out, the rear-end collision prevention device side also follows it, so the right stop lamp sensor 12 and the left stop lamp sensor 13 or Comparator 1
Even if either of the stop lamps 6 and 8 is burnt out, both of the stop lamps 26 and 27 can be turned on by the OR configuration of the outputs of 6 and 17. This eliminates the possibility that the following vehicle may collide with the towed vehicle 2 and further improve safety.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment,
As shown in FIG. 16, the rear-end collision prevention device is composed of a transmitter 40 detachably installed on the towing vehicle 1 side and a receiver 60 detachably installed on the towed vehicle 2 side. When the same elements as in the previous embodiment are used in the towing vehicle 1, the transmitter 40, and the receiver 60, the same numbers are assigned and detailed description thereof is omitted. Detailed description.

FIG. 5 is a block diagram of the transmitter 40 of the rear-end collision prevention device, in which the same sensors 11 to 14 as in the previous embodiment,
52 and each of the comparators 15 to 19, the control device 41 including a microcomputer, and the ID code generation unit 46.
The transmitter 40 is configured by a transmitter 47 that transmits each lamp data of the towing vehicle 1 to the receiver 60 side by the antenna 48. Further, the control device 41 is composed of an MPU and is entirely processed by software, but if it is structured by hardware, it has a block structure as shown in FIG. That is, a control unit 42 that controls the entire control, and a memory 43 that temporarily stores a program, data from the comparators 15 to 18 and data from the ID code generation unit 46.
And a data creating unit 44 that creates the states of the lamps 5 to 8 and 51 of the towing vehicle 1 as data, and the data creating unit 4
The control device 41 is configured by the data output unit 45 for sending the lamp data created in 4 to the receiver 60 via the transmission unit 47.

FIG. 6 is a block diagram of the receiver 60. The receiver 70 receives data from the transmitter 40 via the antenna 71, the control device 61 including a microcomputer, and the same components as those in the previous embodiment. Lamp driver 21-2
4, 53 and each of the lamps 25 to 29 and the like.
In addition, the control device 61 is similar to the control device 41 in that the MP
Although it is composed of U and is entirely processed by software, if it is structured by hardware, a block structure as shown in FIG. 6 is obtained. That is, the control unit 62 that controls the entire control
And a memory 63 for temporarily storing programs and various data, and I for detecting the ID code from the transmitter 40.
The D code detector 64, the data detector 65 for detecting the lamp data from the transmitter 40, the ID code collator 66 for collating the ID code, the data collator 67 for collating each lamp data, etc. 61 is configured.

ID of the transmitter 40 installed on the towing vehicle 1 side
The code generator 46 is composed of, for example, DIP switches.
I am creating a D code. Further, the control unit 42 sequentially and constantly reads the data from the comparators 15 to 18, and the data output unit 45 creates the data at that time. Further, the data output unit 45 also creates inverted data of the created data.

FIG. 7 shows a data format transmitted from the transmitter 40. A header portion for allowing the receiver 60 to recognize the beginning of the data, and various data (ID code data and towing vehicle 1) following the header portion. The lamp part and the data part are alternately and continuously transmitted from the transmitter 40 to the receiver 60 without generating a non-transmission section.

FIG. 8 shows the frame structure of the data section shown in FIG. 7, and shows the order of data transfer. DA is the ID code data, DB is the lamp data of the respective lamps 5 to 8 and 51 of the towing vehicle 1, and DC is a spare when it is desired to enter other data. In addition, the inverted data is transmitted after each data, and the ID code and the lamp data are collated to improve the probability of eliminating an error.

FIG. 9 shows a pulse signal of the header portion and the ID code data. In the header portion, H level and L
For example, when a signal having the same pulse width is transmitted 10 times and the receiver 60 receives the pulse signal 10 times, it is recognized that the next signal is regular data. Further, in the ID code data, the H-level pulse for the first 2 bits has a function as a start bit of the ID code data, and the next 8 bits in the L-level section are ID.
It becomes code data. Further, similarly, in the lamp data, the first 2 bits are the function of the start bit, and the next 6 bits are the H level or L level of the lighting or extinguishing state of the respective lamps 5-8, 51 corresponding to 6 pieces. Pulse signal. Subsequent bits are reserved.

Next, the operation will be described. First, the control device 41 of the transmitter 40 always reads the ID code data created by the ID code generation unit 46, and the data creation unit 44 creates the inverted data of the ID code data read by the control unit 42. The ID code data read last time and its inverted data are stored in the memory 43. Therefore, the control unit 42 compares the read ID code data with the inverted data thereof, and if they match, determines that the read ID code data is correct. Furthermore, it compares with the previously read data stored in the memory 43, and if there is a match, determines that there is no error. If they do not match, the read ID code data is ignored, and the ID code generation unit The ID code data is read from 46.

Next, the ON / OFF states of the lamps 5-8, 51 of the towing vehicle 1 are sequentially and constantly read by the outputs of the comparators 15-19 via the sensors 11-14, 52, respectively. The data creating unit 44 creates the inverted data from the read lamp data, and compares the read lamp data with the inverted data to determine whether there is any error. Further, the lamp data read last time and the inverted data thereof are stored in the memory 43, and the data from the memory 43 and the lamp data read this time are compared and collated. If the previous lamp data is on and the current lamp data is off, the lamp data is repeated until the lamp data matches twice. In this case, although the lighting and extinguishing of the lamp on the towed vehicle 2 side are slightly delayed, this is to reduce the probability of error.

When the ID code data and each lamp data match, as shown in FIG. 8, the ID code data DA and its inverted data (logical NOT of DA), each lamp data DB.
Inverted data (logical negation of DB), spare data DC
And its inversion data (DC logic NOT) in the data section (Fig. 7).
And the header part is created by the data creation part 44,
It is transmitted from the data output unit 45 and the transmission unit 47 to the receiver 60. Although the transmitter 47 FM-modulates the data and transmits it through the antenna 48, it may be transmitted by infrared rays. The reason why the data is transmitted by electromagnetic waves is that the receiver 60 can surely receive the lamp data and the like on the towed vehicle 2 side without having much directivity.

Next, the operation of the receiver 60 side installed in the towed vehicle 2 will be described. The receiving unit 70 including an FM demodulator receives a signal from the transmitter 40 installed in the towing vehicle 1 through the antenna 71. When the header section is received from the data demodulated by the receiving section 70 and the header section can be correctly received, the ID code detecting section 64 of the control device 61 then detects the ID code data. Here, the receiver 60 side stores the first received ID code in the memory 63 as its own ID code,
This stored own ID code data and the I received this time
The lamp data is accepted only when the ID code matching unit 66 matches the D code data.

When the ID codes match, the subsequent lamp data is detected by the data detecting section 65, and the data collating section 6 is detected.
In 7, the lamp data and the inverted data thereof are collated, and if they match, the control unit 62 sends the data to the lamp data output unit 68, assuming that the lamp data is correct. The lamp data output unit 68 sequentially outputs the lamp drivers 21 to 24 and 5 based on the lamp data.
To each lamp 25-
29 turns on or off.

In FIG. 10, the transmitter 40 is detachably installed on the towing vehicle 1 through the magnet rubber plate 33, and the sensors 11 to 14 and 5 mounted on the tip of each cord 34 from the transmitter 40.
2 shows a state in which the tape 2 is detachably attached with a tape as in the previous embodiment. The transmitter 40 and the receiver 60
The antennas 48 and 71 may be expandable rod antennas, or vinyl wires may be used as the antennas.

In FIG. 11, receivers 60a, 60b divided into left and right on the left and right painted surfaces of the upper surface of the trunk 9 of the towed vehicle 2 are magnet rubber plates 33 or suction cups or magnet rubber plates 33 as in the previous embodiment. And the case where they are detachably installed via a suction cup. Note that, as shown in FIG. 11, when the receiver 60 is divided into left and right, a control device 61, a battery, and the like are required. Therefore, it is costly to use one receiver 60 as shown in FIG. It is also advantageous in terms of design. In FIG. 12, the right stop lamp 26 and the left stop lamp 27 are integrated into one stop lamp 7.
3, the right blinker lamp 25 is arranged on the right side of the stop lamp 73, and the left blinker lamp 28 is arranged on the left side. The back lamps 29 are also provided on the left and right. Figure 1
The receiver 60 of the type shown in FIG. 2 is installed in the central portion of the upper surface of the trunk 9 of the towed vehicle 2. Further, FIG. 13 shows a state in which the transmitter 40 is detachably installed on the rear part of the towing vehicle 1 via the magnet rubber plate 33. Also in this embodiment, the receivers 60 and 6 are similar to the previous embodiment.
The magnet rubber plate 33 may be fixed to the lower surfaces of the surfaces 0a and 60b with an adhesive or the like, or may be separate when the case is made of metal.

Further, FIG. 14A shows a case where the receiver 60 is installed on the upper surface of the trunk 9 of the towed vehicle 2 via the magnet rubber plate 33. Generally, the trunk 9 is lowered toward the rear. Is inclined to. Therefore, when the magnet rubber plate 33 having a constant thickness as shown in FIG. 14B is used, when the lamps 25, 73, 28 and 29 have directivity, the light irradiation direction is slightly downward, It may happen that the lights of the lamps 25, 73, 28, and 29 are difficult for the driver of the following vehicle to see.

Therefore, as shown in FIG. 15, when the magnet rubber plate 33 is installed, the inclined surface 35 is formed on the lower surface so that the thickness becomes thicker toward the rear, and the magnet rubber plate 33 is installed on the upper surface of the trunk 9. Then, the upper surface of the magnet rubber plate 33 is made substantially horizontal. Therefore, when the receiver 60 is installed on the upper surface of the magnet rubber plate 33, each of the lamps 25, 73, 2
The direction of irradiation of the light from 8 and 29 becomes substantially horizontal, which can be made very visible to the driver of the following vehicle, and the following vehicle can be prevented from colliding with the towed vehicle 2 to further improve safety. be able to. In addition, it is possible to easily cope with the towed vehicle 2 having different inclination angles of the trunk 9 by preparing in advance several kinds of magnet rubber plates 33 having different inclination angles of the inclined surface 35. Further, the receiver 60 is not limited to the upper surface of the trunk 9 of the towed vehicle 2, but may be disposed inside the glass at the rear part of the inside of the towed vehicle 2.

Further, in the transmitter 40 side or the receiver 60 side, when either the right stop lamp 6 or the left stop lamp 8 is cut off, as in the previous embodiment, the right stop lamp of the receiver 60 is turned on. 26 or the left stop lamp 27 does not light up and remains in the off state. Therefore, in FIG. 5, the signals on the input side or the output side of the comparators 16 and 17 in the transmitter 40 are OR-configured, and in FIG. 6, the input sides of the lamp drivers 22 and 23 in the receiver 60 are shown. Alternatively, the signal on the output side has an OR configuration, and even if either of the stop lamps 6 and 8 is cut off, both the right stop lamp 26 and the left stop lamp 27 of the receiver 60 on the towed vehicle 2 side, or the stop lamp 73. The whole can be turned on. As a result, it is possible to reliably prevent the following vehicle from colliding with the towed vehicle 2 that is being towed and traveling.

As in the previous embodiment, the reference values of the comparators 16 and 17 shown in FIG.
When the stop lamps 6 and 8 of the towing vehicle 1 are turned on, the stop lamp 2 of the receiver 60 on the towed vehicle 2 side is turned on.
The brightness of 6 and 27 can be switched between the number of light emitting diodes and the lamp voltage, or can be displayed in two levels according to the number of lamps (so-called small lighting (tail light lighting) and brake lighting).
It may be done.

Further, as shown in FIG. 17, the present invention can be applied to the case where the towing vehicle 1 as the trailer is the towed vehicle 2 as the trailer house. Tow vehicle 1
The transmitter 40 is installed on the towed vehicle 2 and the receiver 60 is installed on the towed vehicle 2. In this case, since the towed vehicle 2 is long, only the turn signal lamp is provided on the side surface of the towed vehicle 2. May be provided. In this case, only the blinker lamps 25 and 28 may be connected in parallel from the receiver 60 with a cable, or only the control device 61 and the lamp drivers 21 and 24 may be provided in parallel.

As described above, in the present embodiment, the transmitter 40 is simply provided to the towing vehicle 1 and the receiver 60 is simply provided to the towed vehicle 2 without any processing on the towing vehicle 1 and the towed vehicle 2. Can be detachably attached to the
The turn signal lamp, the stop lamp, and the back lamp of the towing vehicle 1 can be turned on, turned off, and blinked in real time in response to lighting, turning off, and blinking of the back lamp. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2.

In this embodiment, the ID code is given to the towing vehicle 1 and the towed vehicle 2, but only the lamp data of the towing vehicle 1 is transmitted from the transmitter 40 without using the ID code. On the towed vehicle 2 side, the blinker lamp, the stop lamp, the back lamp, etc. may be turned on and off only by the lamp data received by the receiver 60. However, it is a preferable example that ID codes are given to the transmitter 40 and the receiver 60 for transmission and reception. That is, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the following vehicle do not malfunction without malfunction. This is because the state of the towed vehicle 2 can be notified.

(Third Embodiment) Further, the vehicle rear-end collision prevention device of the present invention includes a small lamp automatic lighting device 80 as shown in FIG. That is, the small lamp automatic lighting device 80 includes an external light sensor 81 that detects the brightness of external light, a comparator 82 that detects the level from the external light sensor 81, and outputs lamp data that is turned on or off. Various lamp drivers 83 to 85, 22, 23 driven by the output of the comparator 82 (for example, H level signal), and the lamp driver 83,
A right vehicle width lamp 86 and a left vehicle width lamp 87 that are lit by 84, and a right stop lamp 26 and a left stop lamp 2 that are small lit by the lamp drivers 22 and 23.
7, a license plate lamp 88 and the like which is turned on by the lamp driver 85. The external light sensor 81 is composed of, for example, a CdS (photoconductive) element.

The small lamp automatic lighting device 80.
Is a device for turning on the so-called small lights (turning on the tail lights) when the surroundings become dim. Therefore, the right stop lamp 26 and the left stop lamp 27 used in each of the above embodiments are turned on by the small lights. There is. That is, since the right stop lamp 26 and the left stop lamp 27 are composed of a large number of light emitting diodes or a plurality of lamps as described above, the number of light emitting diodes or lamps provided is reduced by half or a low voltage is applied. Is applied to turn on the small lights. Since these techniques are well-known matters, detailed description will be omitted.

The right vehicle width lamp 86 is removably mounted on the right side surface of the towed vehicle 2, and the left stop lamp 27 is removably mounted on the left side surface of the towed vehicle 2 by the above-mentioned magnet rubber plate 33 or sucker. Therefore, when the towed vehicle 2 has a large width, the right vehicle width lamp 86 and the left stop lamp 27 can be attached to further improve the safety. further,
The license plate lamp 88 is for illuminating the license plate of the towed vehicle 2, and is detachably attached to the vicinity of the license plate by a magnet rubber plate 33 or a suction cup.

When the towed vehicle 2 is being towed by the towed vehicle 1 and the surroundings are still bright, the external light sensor 81 outputs, for example, a low level analog signal, and therefore the comparator 82 is turned on. Without the comparator 82
Output is at L level. As a result, the lamp drivers 83 to 85, 22 and 23 are not driven, and the lamps 86 to 88, 26 and 27 are in the off state.

The ambient light becomes dark and the output of the external light sensor 81 becomes high level, and the comparator 82 is turned on and outputs a signal of H level. As a result, each lamp driver 8
3 to 85, 22, 23 are driven, and each lamp 86 to 8
Turn on 8, 26 and 27. When this lamp, especially the right stop lamp 26 and the left stop lamp 27 are turned on (taillights are turned on), a small lighting state is achieved.

The small lamp automatic lighting device 80.
Although the right vehicle width lamp 86, the left vehicle width lamp 87, the license plate lamp 88, etc. are not provided in particular, it is preferable to provide them from the viewpoint of safety. Further, the power source of the small lamp automatic lighting device 80 also uses a rechargeable battery.

When the driver of the towing vehicle 1 forgets to turn on the small light (tail light is turned on) despite the darkness of the surroundings, the receiver 6 attached to the towed vehicle 2
Since the right stop lamp 26 and the left stop lamp 27 of 0 are not lit, safety is lacking. But,
In the present embodiment, even when the towing vehicle 1 side forgets to turn on the small light, the ambient light sensor 81 of the small lamp automatic lighting device 80 detects the surrounding light and dark, and the right stop lamp 26 and Since the left stop lamp 27 is lit by the tail lamp (small lighting), the safety can be further improved.

The small lamp automatic lighting device 80 is naturally provided in the vehicle rear-end collision prevention device in the first and second embodiments.

Further, as another example of applying the wired or wireless rear-end collision prevention device in each of the above-described embodiments of the present invention, the present invention is also applied to the case where an ordinary passenger car tows a watercraft or the like. be able to.

As described above, according to the present invention, the rear-end collision prevention device can be simply and removably attached to the towing vehicle 1 and the towed vehicle 2 without any processing of the tow vehicle 1 and the towed vehicle 2. Therefore, the turn signal lamps and the stop lamps of the towed vehicle 2 can be turned on, turned off, and blinked in real time in response to the turn signal lamps and the stop lamps of the towing vehicle 1 being turned on, turned off, and blinking. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2. Further, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the succeeding vehicle do not malfunction. The state of the towed vehicle 2 can be notified.

[0066]

According to the vehicle rear-end collision prevention device of the first aspect of the present invention, the transmitter is detachably installed on the towing vehicle side,
On the towed vehicle side, wear the receiver in a position that can be easily seen from the following vehicle.
It is installed so that it can be transmitted freely from the transmitter to the receiver with the stop lamp of the towing vehicle turned on and off, and the blinking of the blinker lamp being transmitted from the transmitter to the receiver. It is possible to prevent the rear-end collision of the following vehicle. In addition, in the control device on the transmitter side,
The output data of the data is read sequentially and constantly.
Data match the previous output data and this output data
The ramp data and the inverted data of the ramp data
Error rate of lamp data
Can be reduced. Furthermore, in the control device on the receiver side
Is the lamp data and the lamp data from the signal from the receiving unit.
This is the ramp data and its inverse.
When it is compared with the converted data and it matches, it turns on or off.
Can be output as accurate lamp data
It

As described above, according to the present invention, the towing vehicle and the towed vehicle are
Without any processing on the car, just a rear-end collision prevention device
The device can be easily and detachably attached to the towing vehicle and the towed vehicle.
This allows the blinker lamps and
Real-time according to lighting, turning off, and blinking of the top lamp
Turn on the blinker lamp and stop lamp of the towed vehicle with,
It can be turned off and blinked. Therefore, the towed vehicle
Risk of a following vehicle traveling behind the vehicle colliding with the towed vehicle
Sex can be greatly eliminated.

According to the vehicle rear-end collision prevention device of the second aspect, the transmitter is removably installed on the towing vehicle side, and the receiver is removably installed on the towed vehicle side in a position that is easily seen by the following vehicle. <br/> When installed, the stop lamp of the towing vehicle is turned on and off, and the blinking state of the blinker lamp is transmitted from the transmitter to the receiver, so that the following vehicle can grasp the state of the towing vehicle and tow the vehicle. It is possible to prevent the rear-end collision of a vehicle following the vehicle. Also, since the ID code is used to identify itself, even if a similar rear-end collision prevention device is used nearby, the following vehicle can be informed of the state of the towing vehicle without malfunction. is there. In addition, the control device on the transmitter side
In this case, the output data of the comparator is sequentially and
Always read and the output data is the previous output data and this time
If the output data of
Since it is designed to generate the inverted data of
The probability of error in lamp data can be reduced. In addition,
In the control device on the receiver side, the signal from the receiving unit
Sample data and the inverted data of the lamp data
This lamp data and its inverted data are collated and matched.
If there is no mistake in lighting data,
Can be output.

As described above, according to the present invention, the towing vehicle and the towed vehicle are
Without any processing on the car, just a rear-end collision prevention device
The device can be easily and detachably attached to the towing vehicle and the towed vehicle.
This allows the blinker lamps and
Real-time according to lighting, turning off, and blinking of the top lamp
Turn on the blinker lamp and stop lamp of the towed vehicle with,
It can be turned off and blinked. Therefore, the towed vehicle
Risk of a following vehicle traveling behind the vehicle colliding with the towed vehicle
Sex can be greatly eliminated.

[0070] According to the rear-end collision preventing apparatus for a vehicle according to claim 4, wherein the transmitter and the receiver magnet rubber plate or suction
Because through the at least one of the board are removably installed to each of the tractor and the towed vehicle, the towing vehicle a transmitter and a receiver, usability can be placed anywhere in the towed vehicle The magnetic rubber plate and the suction cup allow the receiver to be removably installed without damaging the painted surface of the towed vehicle.

According to the vehicle rear-end collision prevention device of the fifth aspect, since the magnet rubber plate is formed with an inclined surface on the lower surface of the magnet rubber plate so as to become thicker toward the rear, The upper surface of the trunk at the rear of the towed vehicle is generally inclined downward toward the rear, but by using the magnet rubber plate, a directional member is used especially for the stop lamp and the winker lamp. In this case, the following vehicle can well recognize the lighting, extinguishing, and blinking states, and can prevent a rear-end collision .

[Brief description of drawings]

FIG. 1 is a block diagram of a rear-end collision prevention device according to a first embodiment of the present invention.

FIG. 2 is a rear view of the towing vehicle showing a state in which the sensor according to the first embodiment of the present invention is attached.

FIG. 3 is a rear view of the towed vehicle showing a state in which the rear-end collision prevention device according to the first embodiment of the present invention is attached.

FIG. 4 is a side view of a case where the towing vehicle pulls the towed vehicle with the rear-end collision prevention device according to the first embodiment of the present invention attached.

FIG. 5 is a block diagram of a transmitter according to a second embodiment of the present invention.

FIG. 6 is a block diagram of a receiver according to a second embodiment of the present invention.

FIG. 7 is a diagram showing a data format according to the second embodiment of the present invention.

FIG. 8 is a diagram showing a data transfer order according to a second embodiment of the present invention.

FIG. 9 is a diagram showing pulse signals of a header section and a data section according to the second embodiment of the present invention.

FIG. 10 is a rear view of the towing vehicle showing a state in which the transmitter according to the second embodiment of the present invention is attached.

FIG. 11 is a rear view of the towed vehicle showing a state in which the receiver according to the second embodiment of the present invention is attached.

FIG. 12 is a perspective view showing another example of a receiver according to the second embodiment of the invention.

FIG. 13 is a diagram showing a state in which a transmitter is attached to the towing vehicle according to the second embodiment of the present invention.

FIG. 14A is a diagram showing a state in which a receiver is attached to a towed vehicle via a magnet rubber plate according to the second embodiment of the present invention. FIG. 6B is a side view of the magnet rubber plate according to the second embodiment of the present invention.

FIG. 15A is a diagram showing a state in which a receiver is attached to a towed vehicle in another embodiment of the present invention via a magnet rubber plate of another example. (B) is a side view of the magnet rubber plate of another example in the 2nd Embodiment of this invention.

FIG. 16 is a diagram showing a state in which a rear-end collision prevention device according to a second embodiment of the present invention is attached and a towing vehicle pulls a towed vehicle.

FIG. 17 is a diagram showing a state where a tow vehicle of another example of the second embodiment of the invention is towing a towed vehicle.

FIG. 18 is a block diagram of a small lamp automatic lighting device according to a third embodiment of the present invention.

FIG. 19 is a diagram showing a state in which a tow vehicle of a conventional example is towing a towed vehicle.

FIG. 20 is a diagram showing a state in which another conventional tow vehicle is towing a towed vehicle.

[Explanation of Codes] 1 Towing vehicle 2 Towed vehicle 5 Right blinker 6 Right stop lamp 7 Left blinker 8 Left stop lamp 11 Right blinker sensor 12 Right stop lamp sensor 13 Left stop lamp sensor 14 Left blinker sensor 15-18 Comparator 25 Right Turn signal lamp 26 Right stop lamp 27 Left stop lamp 28 Left turn signal lamp 30 Case 31 Case 33 Magnet rubber plate 35 Inclined surface 40 Transmitter 41 Controller (MPU) 46 ID code generator 47 Transmitter 60 Receiver 61 Controller (MPU) ) 70 receiver ────────────────────────────────────────────── ───────

[Procedure amendment]

[Submission date] August 7, 2002 (2002.8.7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Rear-end collision prevention device for vehicle

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear-end collision prevention device for preventing rear-end collision with a towed vehicle towed by a tow vehicle.

[0002]

2. Description of the Related Art When a vehicle breaks down on an open road and cannot drive by itself, or when a vehicle illegally parked in a parking prohibited area is towed by a tow truck, these vehicles are towed by a towing vehicle. I often see towing and running. FIG. 19 shows a trailer 3 connected to the towing vehicle 1.
20 shows a state in which the towed vehicle 2 is mounted on the vehicle, and FIG. 20 shows that the towed vehicle 2 is lifted by the towing device 4 provided at the rear portion of the towed vehicle 1 to travel. It shows the state of being.

When the towed vehicle 2 travels while being towed by the towed vehicle 1, if the towed vehicle 2 is a defective vehicle, there is a driver, so the vehicle will travel at a relatively slow speed while blinking the hazard lamp. There is. Further, in the case of illegal parking, since there is no driver, the door cannot be opened, and therefore, it is the current situation that the towed vehicle 2 is being towed while the hazard lamps and the like are not blinking.

[0004]

When the vehicle illegally parked is towed, the blinker lamps and stop lamps on the left and right rear surfaces of the towing vehicle 1 blink according to the operation of the driver of the towing vehicle 1. Lighting is performed. However, the turn signal lamps and stop lamps of the towed vehicle 2 are not blinked or lit at all, and the driver of the following vehicle does not know whether the tow vehicle 1 in front of the vehicle is turning right or left, or is braking. Not knowing, there was a problem that the following vehicle would collide with the towed vehicle 2 or the possibility of a rear collision would be extremely high.

Further, even if the towed vehicle 2 is a malfunctioning vehicle and the hazard lamp (winker lamp) is blinking to notify the succeeding vehicle of the situation in which the towed vehicle 2 is being towed, the blinker lamp is simply Just by blinking, the situation of whether the driver of the towing vehicle 1 makes a right turn or a left turn, or whether the brake is stepped on is completely unknown to the following vehicle as in the above, and there is a possibility of a rear-end collision.

[0006] Further, in the special towing vehicle 1, there is a vehicle in which the width of the rear portion is slightly wide so that the blinker lamp and the stop lamp can be seen.
There is a comparatively large distance from the position of the turn signal lamps and stop lamps to the rear part of the towed vehicle 2, and it is difficult for the following vehicles to get a sense of distance. Especially, in the evening and night, or in the case of rain, There is a problem in that the operating state of the towed vehicle 2 is difficult to understand and there is a high possibility that a succeeding vehicle may collide with the towed vehicle 2 at a rear end.

The present invention has been made in view of the above-mentioned problems, and the following display states are provided by displaying the same display state as the blinker lamp and the stop lamp of the towing vehicle on the rear portion of the towed vehicle. To provide a vehicle rear-end collision prevention device for the purpose of preventing rear-end collision of a vehicle with a towed vehicle.

[0008]

[0009]

[0010]

[0011]

In collision preventing apparatus for a vehicle according to claim 1 SUMMARY OF THE INVENTION may, by the towing vehicle 1 is provided on the rear side of the towing vehicle 2, which is towed at a position behind the said towing vehicle 1 device In a rear-end collision prevention device for a vehicle, in which blinking lights, stop lamps, and other indicator lights of the towing vehicle 1 are linked and displayed, the winker lamps 5, 7 and the stop of the towing vehicle 1 are stopped. The sensors 11 to 14 for detecting whether the lamps 6 and 8 are turned on or off are connected to the towing vehicle 1
The blinker lamps 5, 7 and the stop lamps 6, 8 of
Comparators 15 to 1 which are detachably attached to the side and convert the analog outputs of the sensors 11 to 14 into digital outputs.
8 and an ID code generator 4 that creates its own ID code
6, output data and ID of the comparators 15 to 18
The ID code data from the code generation unit 46 is read sequentially and constantly, and when the output data matches the previous output data and the present output data, the lamp data, the inverted data of the lamp data, and the ID code data. And a transmitter 47 that wirelessly transmits a signal from the controller 41 constitute a transmitter 40 that is removably arranged on the towing vehicle 1.
A receiving unit 70 for receiving a signal from 0, and the receiving unit 70
The first received I from the transmitter 40 from the signal from
The D code is stored in the memory 63 as its own ID code.
In addition, the ID code data from the receiving unit 70 is fetched, and when the ID code data matches the own ID code stored in the memory 63, the lamp data from the signal from the receiving unit 70 and the inversion of the lamp data. A control device 61 that takes in data and collates the lamp data with the inverted data and outputs them as correct lamp data when they match, and a turn signal lamp that turns on and off according to the lamp data from the control device 61. 25, 28 and stop lamps 26, 27 constitute a receiver 60 detachably arranged on the towed vehicle 2.

With this configuration, the transmitter 40 is detachably installed on the towing vehicle 1 side, and the receiver 60 is detachably installed on the towed vehicle 2 side at a position that is easily seen by the following vehicle. The transmitter 40 transmits to the receiver 60 the lighting and extinguishing states of the stop lamps 6 and 8 of the towing vehicle 1 and the blinking state of the blinker lamps 5 and 7 so that the following vehicle can grasp the state of the towing vehicle 1. A rear-end collision of the following vehicle with the towed vehicle 2 can be prevented. Further, since the ID code is used to identify itself, the following vehicle can be informed of the state of the towing vehicle 1 without malfunction even if a similar rear-end collision prevention device is used nearby. Is. Further, in the control device 41 on the side of the transmitter 40, the output data of the comparators 15 to 18 are sequentially and constantly read, and when the output data matches the previous output data and the present output data, the lamp data and the Since the inverted data of the ramp data is generated, the probability of error in the ramp data can be reduced. Further, in the control device 61 on the receiver 60 side, the lamp data and the inverted data of the lamp data are fetched from the signal from the receiving unit 70, and the lamp data and the inverted data thereof are collated and lighted when they match, It can be output as lamp data with no mistakes such as turning off.

As described above, in the present invention, the rear-end collision prevention device can be simply and removably attached to the towing vehicle 1 and the towed vehicle 2 without any processing on the tow vehicle 1 and the towed vehicle 2. Therefore, the turn signal lamps and the stop lamps of the towed vehicle 2 can be turned on, turned off, and blinked in real time in response to the turn signal lamps and the stop lamps of the towing vehicle 1 being turned on, turned off, and blinking. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2.

[0014]

[0015] In a rear-end collision preventing apparatus for a vehicle according to claim 2, wherein the transmitter 40 and the receiver 60 are magnetic rubber plate 3
It is characterized in that it is detachably installed on the towing vehicle 1 and the towed vehicle 2 via at least one of 3 and a suction cup.

As a result, the transmitter 40 and the receiver 60 can be installed at any desired positions on the towing vehicle 1 and the towed vehicle 2 and are convenient to use. Moreover, the painted surface of the towed vehicle 2 is particularly improved by the magnet rubber plate 33 and the suction cup. The receiver 60 can be detachably installed without damaging the.

In the vehicle rear-end collision prevention device according to a third aspect of the present invention, the magnet rubber plate 33 has an inclined surface 35 formed on the lower surface of the magnet rubber plate 33 so that the thickness thereof becomes thicker toward the rear. Is characterized by.

As a result, the upper surface of the rear trunk of the towed vehicle 2 generally inclines downward toward the rear. However, by using the magnet rubber plate 33, the stop lamps 26, 27 and the winkers are particularly used. If a directional member is used for the lamps 25 and 28, it will be lit from the following vehicle,
The off and blinking states can be recognized well and a rear-end collision can be prevented.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 4 show a first embodiment, FIG. 1 shows a block diagram of a rear-end collision prevention device, and FIG. 2 shows a rear surface of a towing vehicle 1. On the left and right sides of the rear surface of the towing vehicle 1, as is well known, a right blinker 5, a right stop lamp 6, a left blinker 7,
A left stop lamp 8 and a back lamp 51 are provided respectively.

A right winker sensor 11 is detachably attached to the surface of the right winker 5 of the towing vehicle 1, and a left winker sensor 14 is detachably attached to the surface of the left winker 7. A right stop lamp sensor 12 is detachably attached to the surface of the right stop lamp 6 of the towing vehicle 1, and a left stop lamp sensor 13 is detachably attached to the surface of the left stop lamp 8. . Further, the back lamp sensors 52 are detachably attached to the surfaces of the back lamps 51 on both sides.

These sensors 11 to 14 and 52 are composed of visible light conductive elements and constantly detect the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51, and as shown in FIG. It is sent to each comparator 15 to 19 in the subsequent stage. In each of the comparators 15 to 19, each of the turn signals, the stop sensors 11 to 14 and the back lamp sensor 52.
Detection signal, that is, each lamp 5-8, 51 of the towing vehicle 1
When is turned on, for example, an H level signal is output, and when the lamps 5 to 8 and 51 are turned off, for example, the comparators 15 to 19 output an L level signal. Further, in response to the blinking of the right turn signal 5 and the left turn signal 7 of the towing vehicle 1, the comparator 1 is detected by the detection signals of the right turn signal sensor 11 and the left turn signal sensor 14.
Signals of H level and L level are alternately output from 5 and 18.

The signals from the comparators 15 to 19 are input to the lamp drivers 21 to 24 and 53, and the lamps 25 to 25 are output by the lamp drivers 21 to 24 and 53.
Up to 29 are turned on, turned off, and blinked.
Here, the right blinker lamp 25 with the lamp driver 21.
Is blinked, and the left blinker lamp 28 is blinked by the lamp driver 24. Further, the right stop lamp 26 is turned on and off by the lamp driver 22, and the left stop lamp 27 is turned on and off by the lamp driver 23. Further, the lamp driver 53
The back lamp 29 is turned on and off.

Although each of the lamps 25 to 29 is composed of a large number of light emitting diodes, a blinker lamp or a stop lamp used in a general automobile may be used. A battery (not shown) is used as the power source of the rear-end collision prevention device shown in FIG. For example, a battery that can be used for 8 hours is used in a state in which each of the lamps 25 to 29 is turned on, turned off, and blinked. Further, this battery is of a rechargeable type, and is fully charged before use to have the above-mentioned 8-hour specification. Of course, when the towed vehicle 2 travels a short distance, the operating time may be shortened to reduce the battery capacity to reduce the cost.

Next, the structure of the rear-end collision prevention device will be described. The comparators 15-19, the lamp drivers 21-24, 53 and the lamps 25-29 shown in FIG.
Each of the sensors 11 to 14 and 52 is connected to the respective cases 11 to 14 and 52 via a cable 32 (see FIG. 4). In addition,
In FIG. 1, the back lamp sensor 52 and the comparator 1
9, only one system of the lamp driver 53 and the back lamp 29 is shown, but actually two systems are provided depending on the left and right. As shown in FIG. 3, a case 30 is arranged on the right side of the upper surface of the trunk 9 at the rear of the towed vehicle 2.
The other case 31 is attached to the left side of the upper surface of the.
In the case 30, the comparators 15, 16, 19 and the lamp drivers 21, 22, 53, the right blinker lamp 2 are provided.
5, a right stop lamp 26, a back lamp 29, and a battery for power supply are stored. A right blinker lamp 25 is arranged on the right side of the back surface of the case 30, a right stop lamp 26 is arranged in the center, and a back lamp 29 is arranged on the left side.

In the case 31, the comparators 17, 18, 19 and the lamp drivers 23, 24 shown in FIG.
53, left stop lamp 27, left blinker lamp 28,
A back lamp 29 and a battery for power supply are stored. The left blinker lamp 28 is on the left side of the back of the case 31.
, A left stop lamp 27 is arranged in the center, and a back lamp 29 is arranged on the right side. The case 30 is connected to the back lamp sensor 52, the right turn signal sensor 11 and the right stop lamp sensor 12 mounted on the towing vehicle 1 side via three cables 32.
The case 31 is connected to the back lamp sensor 52, the left stop lamp sensor 13 and the left turn signal sensor 14 via three cables 32.

Each of the sensors 11 to 14 and 52 is directly and detachably attached to the surface of each of the lamps 5 to 8 and 51 of the towing vehicle 1 with a tape or the like so as not to be easily peeled off by vibration during traveling. There is. Of course, other methods may be used to attach the sensors 11 to 14 and 52. The cases 30 and 31 are mounted on the upper surface of the trunk 9 of the towed vehicle 2 by using the magnet rubber plate 3
3 is used. The magnet rubber plate 33 is made of a strong magnet and rubber integrated with each other so as to be soft so as not to scratch the painted surface of the vehicle (the towed vehicle 2), and the cases 30, 31
Is detachably and firmly fixed to the towed vehicle 2. It should be noted that a power switch for turning on / off a power source from a battery (not shown) to each unit is omitted. When the cases 30 and 31 are made of synthetic resin, the case 3
The magnet rubber plate 33 is fixed to the lower surfaces of the Nos. 0 and 31 with an adhesive or the like. When the cases 30 and 31 are made of metal, the cases 30 and 31 and the magnet rubber plate 33 may be separately provided, or the magnet rubber plate 33 may be made of an adhesive or the like.
It may be fixed to the lower surface of 31.

The magnet rubber plate 33 is used to detachably mount the cases 30 and 31 on the painted surface of the towed vehicle 2.
It is not limited to. For example, the cases 30 and 31 may be attached to the towed vehicle 2 via rubber suction cups (one or more).
Alternatively, a suction cup may be used on the lower surface of the magnet rubber plate 33.

Next, the operation of the rear-end collision prevention device of this embodiment will be described. First, as shown in FIG. 4, setting is performed so that a towed vehicle 2, such as a vehicle having a trouble or an illegally parked vehicle, can be towed by the tow vehicle 1. Next, as shown in FIG. 3, the towed vehicle 2 is installed on the upper surface of the rear trunk 9 via the magnet rubber plates 33, respectively. The back lamp sensor 5 connected to the case 30 via the cable 32
2. The right winker sensor 11 and the right stop lamp sensor 12 are attached to the back lamp 51, the right winker 5 and the right stop lamp 6 of the towing vehicle 1 with tapes, respectively.
Further, the back lamp sensor 52 and the left stop lamp sensor 1 which are connected to the case 31 via the cable 32.
3 and the left turn signal sensor 14 are attached to the back lamp 51, the left stop lamp 8 and the left turn signal 7 of the towing vehicle 1 with tapes, respectively. With this, the towing vehicle 1 of the rear-end collision prevention device
And, the attachment to the towed vehicle 2 is completed.

When the driver of the towing vehicle 1 blinks the right blinker 5 of the towing vehicle 1 when the driver of the towing vehicle 1 makes a right turn, for example, when the driver drives the towed vehicle 2 by pulling the towed vehicle 2, the right blinker 5 of the right blinker 5 is turned on. The right blinker sensor 11 detects the blinking in response to the blinking. The detection signal of the right winker sensor 11 is input to the comparator 15 in the case 30, and the lamp driver 21 causes the right winker lamp 25 to blink in real time. Further, even when the left blinker 7 blinks, the left blinker sensor 14 detects this and similarly, the comparator 18 and the lamp driver 24
The left blinker lamp 28 is blinked in real time via.

Further, when the driver of the towing vehicle 1 depresses the brake, the right stop lamp 6 and the left stop lamp 8 are lit, and this lighting is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13. The comparators 16 and 17 and the lamp drivers 22 and 2, respectively.
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned on in real time via 3. When the driver of the towing vehicle 1 releases his / her foot from the brake, the right stop lamp 6 and the left stop lamp 8 are extinguished, so this extinction is detected by the right stop lamp sensor 12 and the left stop lamp sensor 13, respectively. 17
The right stop lamp 26 and the left stop lamp 27 on the towed vehicle 2 side are turned off in real time via the lamp drivers 22 and 23.

Further, when the towing vehicle 1 and the towed vehicle 2 are backed, the back lamp 51 of the towing vehicle 1 is turned on. Therefore, the back lamp sensor 52 detects the turning on, and the comparator 19 and the lamp driver 53 are used. Towed vehicle 2
The back lamp 29 on the side lights up. When the retraction of the towing vehicle 1 and the towed vehicle 2 is stopped, the back lamp sensor 52 detects that the back lamp 51 is off, and the back lamp 29 on the towed vehicle 2 side is turned off.

As described above, in this embodiment, the lighting, extinguishing, and blinking states of the respective lamps 5 to 8 and 51 of the towing vehicle 1 are controlled by the rear surface of the towed vehicle 2 towed by the towing vehicle 1. Since the lights 25, 29, 29 are turned on, turned off, and blinked in real time, for a person who is driving a vehicle following the towed vehicle 2, it is possible to indicate the direction of the towed vehicle 1, step on the brakes, and move backward. It is possible to recognize the situation and reliably prevent the following vehicle from colliding with the towed vehicle 2.
Since the cables 32 are connected between the sensors 11 to 14 and 52 and the cases 30 and 31 side by radio, not by radio, the risk of malfunction due to disturbance can be eliminated. Also, the cost can be reduced.

Since the detection signals from the right stop lamp sensor 12 and the left stop lamp sensor 13 are input to the comparators 16 and 17 as analog values, the reference values of the comparators 16 and 17 are set in two steps. If you leave it, you can also turn on the stop lamp in the evening. In such a case, the stop lamp 26,
The degree of lighting (brightness) of 27 depending on the voltage or the number
To be variable.

Further, when either of the stop lamps 6 and 8 of the towing vehicle 1 is burnt out, the rear-end collision prevention device side also follows it, so the right stop lamp sensor 12 and the left stop lamp sensor 13 or Comparator 1
Even if either of the stop lamps 6 and 8 is burnt out, both of the stop lamps 26 and 27 can be turned on by the OR configuration of the outputs of 6 and 17. This eliminates the possibility that the following vehicle may collide with the towed vehicle 2 and further improve safety.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS. In this embodiment,
As shown in FIG. 16, the rear-end collision prevention device is composed of a transmitter 40 detachably installed on the towing vehicle 1 side and a receiver 60 detachably installed on the towed vehicle 2 side. When the same elements as in the previous embodiment are used in the towing vehicle 1, the transmitter 40, and the receiver 60, the same numbers are assigned and detailed description thereof is omitted. Detailed description.

FIG. 5 is a block diagram of the transmitter 40 of the rear-end collision prevention device, in which the same sensors 11 to 14 as in the previous embodiment,
52 and each of the comparators 15 to 19, the control device 41 including a microcomputer, and the ID code generation unit 46.
The transmitter 40 is configured by a transmitter 47 that transmits each lamp data of the towing vehicle 1 to the receiver 60 side by the antenna 48. Further, the control device 41 is composed of an MPU and is entirely processed by software, but if it is structured by hardware, it has a block structure as shown in FIG. That is, a control unit 42 that controls the entire control, and a memory 43 that temporarily stores a program, data from the comparators 15 to 18 and data from the ID code generation unit 46.
And a data creating unit 44 that creates the states of the lamps 5 to 8 and 51 of the towing vehicle 1 as data, and the data creating unit 4
The control device 41 is configured by the data output unit 45 for sending the lamp data created in 4 to the receiver 60 via the transmission unit 47.

FIG. 6 is a block diagram of the receiver 60. The receiver 70 receives data from the transmitter 40 via the antenna 71, the control device 61 including a microcomputer, and the same components as those in the previous embodiment. Lamp driver 21-2
4, 53 and each of the lamps 25 to 29 and the like.
In addition, the control device 61 is similar to the control device 41 in that the MP
Although it is composed of U and is entirely processed by software, if it is structured by hardware, a block structure as shown in FIG. 6 is obtained. That is, the control unit 62 that controls the entire control
And a memory 63 for temporarily storing programs and various data, and I for detecting the ID code from the transmitter 40.
The D code detector 64, the data detector 65 for detecting the lamp data from the transmitter 40, the ID code collator 66 for collating the ID code, the data collator 67 for collating each lamp data, etc. 61 is configured.

ID of the transmitter 40 installed on the towing vehicle 1 side
The code generator 46 is composed of, for example, DIP switches.
I am creating a D code. Further, the control unit 42 sequentially and constantly reads the data from the comparators 15 to 18, and the data output unit 45 creates the data at that time. Further, the data output unit 45 also creates inverted data of the created data.

FIG. 7 shows a data format transmitted from the transmitter 40. A header portion for allowing the receiver 60 to recognize the beginning of the data, and various data (ID code data and towing vehicle 1) following the header portion. The lamp part and the data part are alternately and continuously transmitted from the transmitter 40 to the receiver 60 without generating a non-transmission section.

FIG. 8 shows the frame structure of the data section shown in FIG. 7, and shows the order of data transfer. DA is the ID code data, DB is the lamp data of the respective lamps 5 to 8 and 51 of the towing vehicle 1, and DC is a spare when it is desired to enter other data. In addition, the inverted data is transmitted after each data, and the ID code and the lamp data are collated to improve the probability of eliminating an error.

FIG. 9 shows a pulse signal of the header portion and the ID code data. In the header portion, H level and L
For example, when a signal having the same pulse width is transmitted 10 times and the receiver 60 receives the pulse signal 10 times, it is recognized that the next signal is regular data. Further, in the ID code data, the H-level pulse for the first 2 bits has a function as a start bit of the ID code data, and the next 8 bits in the L-level section are ID.
It becomes code data. Further, similarly, in the lamp data, the first 2 bits are the function of the start bit, and the next 6 bits are the H level or L level of the lighting or extinguishing state of the respective lamps 5-8, 51 corresponding to 6 pieces. Pulse signal. Subsequent bits are reserved.

Next, the operation will be described. First, the control device 41 of the transmitter 40 always reads the ID code data created by the ID code generation unit 46, and the data creation unit 44 creates the inverted data of the ID code data read by the control unit 42. The ID code data read last time and its inverted data are stored in the memory 43. Therefore, the control unit 42 compares the read ID code data with the inverted data thereof, and if they match, determines that the read ID code data is correct. Furthermore, it compares with the previously read data stored in the memory 43, and if there is a match, determines that there is no error. If they do not match, the read ID code data is ignored, and the ID code generation unit The ID code data is read from 46.

Next, the ON / OFF states of the lamps 5-8, 51 of the towing vehicle 1 are sequentially and constantly read by the outputs of the comparators 15-19 via the sensors 11-14, 52, respectively. The data creating unit 44 creates the inverted data from the read lamp data, and compares the read lamp data with the inverted data to determine whether there is any error. Further, the lamp data read last time and the inverted data thereof are stored in the memory 43, and the data from the memory 43 and the lamp data read this time are compared and collated. If the previous lamp data is on and the current lamp data is off, the lamp data is repeated until the lamp data matches twice. In this case, although the lighting and extinguishing of the lamp on the towed vehicle 2 side are slightly delayed, this is to reduce the probability of error.

When the ID code data and each lamp data match, as shown in FIG. 8, the ID code data DA and its inverted data (logical NOT of DA), each lamp data DB.
Inverted data (logical negation of DB), spare data DC
And its inversion data (DC logic NOT) in the data section (Fig. 7).
And the header part is created by the data creation part 44,
It is transmitted from the data output unit 45 and the transmission unit 47 to the receiver 60. Although the transmitter 47 FM-modulates the data and transmits it through the antenna 48, it may be transmitted by infrared rays. The reason why the data is transmitted by electromagnetic waves is that the receiver 60 can surely receive the lamp data and the like on the towed vehicle 2 side without having much directivity.

Next, the operation of the receiver 60 side installed in the towed vehicle 2 will be described. The receiving unit 70 including an FM demodulator receives a signal from the transmitter 40 installed in the towing vehicle 1 through the antenna 71. When the header section is received from the data demodulated by the receiving section 70 and the header section can be correctly received, the ID code detecting section 64 of the control device 61 then detects the ID code data. Here, the receiver 60 side stores the first received ID code in the memory 63 as its own ID code,
This stored own ID code data and the I received this time
The lamp data is accepted only when the ID code matching unit 66 matches the D code data.

When the ID codes match, the subsequent lamp data is detected by the data detecting section 65, and the data collating section 6 is detected.
In 7, the lamp data and the inverted data thereof are collated, and if they match, the control unit 62 sends the data to the lamp data output unit 68, assuming that the lamp data is correct. The lamp data output unit 68 sequentially outputs the lamp drivers 21 to 24 and 5 based on the lamp data.
To each lamp 25-
29 turns on or off.

In FIG. 10, the transmitter 40 is detachably installed on the towing vehicle 1 through the magnet rubber plate 33, and the sensors 11 to 14 and 5 mounted on the tip of each cord 34 from the transmitter 40.
2 shows a state in which the tape 2 is detachably attached with a tape as in the previous embodiment. The transmitter 40 and the receiver 60
The antennas 48 and 71 may be expandable rod antennas, or vinyl wires may be used as the antennas.

In FIG. 11, receivers 60a, 60b divided into left and right on the left and right painted surfaces of the upper surface of the trunk 9 of the towed vehicle 2 are magnet rubber plates 33 or suction cups or magnet rubber plates 33 as in the previous embodiment. And the case where they are detachably installed via a suction cup. Note that, as shown in FIG. 11, when the receiver 60 is divided into left and right, a control device 61, a battery, and the like are required. Therefore, it is costly to use one receiver 60 as shown in FIG. It is also advantageous in terms of design. In FIG. 12, the right stop lamp 26 and the left stop lamp 27 are integrated into one stop lamp 7.
3, the right blinker lamp 25 is arranged on the right side of the stop lamp 73, and the left blinker lamp 28 is arranged on the left side. The back lamps 29 are also provided on the left and right. Figure 1
The receiver 60 of the type shown in FIG. 2 is installed in the central portion of the upper surface of the trunk 9 of the towed vehicle 2. Further, FIG. 13 shows a state in which the transmitter 40 is detachably installed on the rear part of the towing vehicle 1 via the magnet rubber plate 33. Also in this embodiment, the receivers 60 and 6 are similar to the previous embodiment.
The magnet rubber plate 33 may be fixed to the lower surfaces of the surfaces 0a and 60b with an adhesive or the like, or may be separate when the case is made of metal.

Further, FIG. 14A shows a case where the receiver 60 is installed on the upper surface of the trunk 9 of the towed vehicle 2 via the magnet rubber plate 33. Generally, the trunk 9 is lowered toward the rear. Is inclined to. Therefore, when the magnet rubber plate 33 having a constant thickness as shown in FIG. 14B is used, when the lamps 25, 73, 28 and 29 have directivity, the light irradiation direction is slightly downward, It may happen that the lights of the lamps 25, 73, 28, and 29 are difficult for the driver of the following vehicle to see.

Therefore, as shown in FIG. 15, when the magnet rubber plate 33 is installed, the inclined surface 35 is formed on the lower surface so that the thickness becomes thicker toward the rear, and the magnet rubber plate 33 is installed on the upper surface of the trunk 9. Then, the upper surface of the magnet rubber plate 33 is made substantially horizontal. Therefore, when the receiver 60 is installed on the upper surface of the magnet rubber plate 33, each of the lamps 25, 73, 2
The direction of irradiation of the light from 8 and 29 becomes substantially horizontal, which can be made very visible to the driver of the following vehicle, and the following vehicle can be prevented from colliding with the towed vehicle 2 to further improve safety. be able to. In addition, it is possible to easily cope with the towed vehicle 2 having different inclination angles of the trunk 9 by preparing in advance several kinds of magnet rubber plates 33 having different inclination angles of the inclined surface 35. Further, the receiver 60 is not limited to the upper surface of the trunk 9 of the towed vehicle 2, but may be disposed inside the glass at the rear part of the inside of the towed vehicle 2.

Further, in the transmitter 40 side or the receiver 60 side, when either the right stop lamp 6 or the left stop lamp 8 is cut off, as in the previous embodiment, the right stop lamp of the receiver 60 is turned on. 26 or the left stop lamp 27 does not light up and remains in the off state. Therefore, in FIG. 5, the signals on the input side or the output side of the comparators 16 and 17 in the transmitter 40 are OR-configured, and in FIG. 6, the input sides of the lamp drivers 22 and 23 in the receiver 60 are shown. Alternatively, the signal on the output side has an OR configuration, and even if either of the stop lamps 6 and 8 is cut off, both the right stop lamp 26 and the left stop lamp 27 of the receiver 60 on the towed vehicle 2 side, or the stop lamp 73. The whole can be turned on. As a result, it is possible to reliably prevent the following vehicle from colliding with the towed vehicle 2 that is being towed and traveling.

As in the previous embodiment, the reference values of the comparators 16 and 17 shown in FIG.
When the stop lamps 6 and 8 of the towing vehicle 1 are turned on, the stop lamp 2 of the receiver 60 on the towed vehicle 2 side is turned on.
The brightness of 6 and 27 can be switched between the number of light emitting diodes and the lamp voltage, or can be displayed in two levels according to the number of lamps (so-called small lighting (tail light lighting) and brake lighting).
It may be done.

Further, as shown in FIG. 17, the present invention can be applied to the case where the towing vehicle 1 as the trailer is the towed vehicle 2 as the trailer house. Tow vehicle 1
The transmitter 40 is installed on the towed vehicle 2 and the receiver 60 is installed on the towed vehicle 2. In this case, since the towed vehicle 2 is long, only the turn signal lamp is provided on the side surface of the towed vehicle 2. May be provided. In this case, only the blinker lamps 25 and 28 may be connected in parallel from the receiver 60 with a cable, or only the control device 61 and the lamp drivers 21 and 24 may be provided in parallel.

As described above, in the present embodiment, the transmitter 40 is simply provided to the towing vehicle 1 and the receiver 60 is simply provided to the towed vehicle 2 without any processing on the towing vehicle 1 and the towed vehicle 2. Can be detachably attached to the
The turn signal lamp, the stop lamp, and the back lamp of the towing vehicle 1 can be turned on, turned off, and blinked in real time in response to lighting, turning off, and blinking of the back lamp. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2.

In this embodiment, the ID code is given to the towing vehicle 1 and the towed vehicle 2, but only the lamp data of the towing vehicle 1 is transmitted from the transmitter 40 without using the ID code. On the towed vehicle 2 side, the blinker lamp, the stop lamp, the back lamp, etc. may be turned on and off only by the lamp data received by the receiver 60. However, it is a preferable example that ID codes are given to the transmitter 40 and the receiver 60 for transmission and reception. That is, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the following vehicle do not malfunction without malfunction. This is because the state of the towed vehicle 2 can be notified.

(Third Embodiment) Further, the vehicle rear-end collision prevention device of the present invention includes a small lamp automatic lighting device 80 as shown in FIG. That is, the small lamp automatic lighting device 80 includes an external light sensor 81 that detects the brightness of external light, a comparator 82 that detects the level from the external light sensor 81, and outputs lamp data that is turned on or off. Various lamp drivers 83 to 85, 22, 23 driven by the output of the comparator 82 (for example, H level signal), and the lamp driver 83,
A right vehicle width lamp 86 and a left vehicle width lamp 87 that are lit by 84, and a right stop lamp 26 and a left stop lamp 2 that are small lit by the lamp drivers 22 and 23.
7, a license plate lamp 88 and the like which is turned on by the lamp driver 85. The external light sensor 81 is composed of, for example, a CdS (photoconductive) element.

The small lamp automatic lighting device 80.
Is a device for turning on the so-called small lights (turning on the tail lights) when the surroundings become dim. Therefore, the right stop lamp 26 and the left stop lamp 27 used in each of the above embodiments are turned on by the small lights. There is. That is, since the right stop lamp 26 and the left stop lamp 27 are composed of a large number of light emitting diodes or a plurality of lamps as described above, the number of light emitting diodes or lamps provided is reduced by half or a low voltage is applied. Is applied to turn on the small lights. Since these techniques are well-known matters, detailed description will be omitted.

The right vehicle width lamp 86 is removably mounted on the right side surface of the towed vehicle 2, and the left stop lamp 27 is removably mounted on the left side surface of the towed vehicle 2 by the above-mentioned magnet rubber plate 33 or sucker. Therefore, when the towed vehicle 2 has a large width, the right vehicle width lamp 86 and the left stop lamp 27 can be attached to further improve the safety. further,
The license plate lamp 88 is for illuminating the license plate of the towed vehicle 2, and is detachably attached to the vicinity of the license plate by a magnet rubber plate 33 or a suction cup.

When the towed vehicle 2 is being towed by the towed vehicle 1 and the surroundings are still bright, the external light sensor 81 outputs, for example, a low level analog signal, and therefore the comparator 82 is turned on. Without the comparator 82
Output is at L level. As a result, the lamp drivers 83 to 85, 22 and 23 are not driven, and the lamps 86 to 88, 26 and 27 are in the off state.

The ambient light becomes dark and the output of the external light sensor 81 becomes high level, and the comparator 82 is turned on and outputs a signal of H level. As a result, each lamp driver 8
3 to 85, 22, 23 are driven, and each lamp 86 to 8
Turn on 8, 26 and 27. When this lamp, especially the right stop lamp 26 and the left stop lamp 27 are turned on (taillights are turned on), a small lighting state is achieved.

The small lamp automatic lighting device 80.
Although the right vehicle width lamp 86, the left vehicle width lamp 87, the license plate lamp 88, etc. are not provided in particular, it is preferable to provide them from the viewpoint of safety. Further, the power source of the small lamp automatic lighting device 80 also uses a rechargeable battery.

When the driver of the towing vehicle 1 forgets to turn on the small light (tail light is turned on) despite the darkness of the surroundings, the receiver 6 attached to the towed vehicle 2
Since the right stop lamp 26 and the left stop lamp 27 of 0 are not lit, safety is lacking. But,
In the present embodiment, even when the towing vehicle 1 side forgets to turn on the small light, the ambient light sensor 81 of the small lamp automatic lighting device 80 detects the surrounding light and dark, and the right stop lamp 26 and Since the left stop lamp 27 is lit by the tail lamp (small lighting), the safety can be further improved.

The small lamp automatic lighting device 80 is naturally provided in the vehicle rear-end collision prevention device in the first and second embodiments.

Further, as another example of applying the wired or wireless rear-end collision prevention device in each of the above-described embodiments of the present invention, the present invention is also applied to the case where an ordinary passenger car tows a watercraft or the like. be able to.

As described above, according to the present invention, the rear-end collision prevention device can be simply and removably attached to the towing vehicle 1 and the towed vehicle 2 without any processing of the tow vehicle 1 and the towed vehicle 2. Therefore, the turn signal lamps and the stop lamps of the towed vehicle 2 can be turned on, turned off, and blinked in real time in response to the turn signal lamps and the stop lamps of the towing vehicle 1 being turned on, turned off, and blinking. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle 2 colliding with the towed vehicle 2. Further, since the transmitter 40 and the receiver 60 recognize themselves by using the ID code, even if a similar rear-end collision prevention device is used nearby, the towing vehicle 1 and the trailing vehicle 1 of the succeeding vehicle do not malfunction. The state of the towed vehicle 2 can be notified.

[0066]

[0067]

[0068]

Effects of the Invention] According to the rear-end collision preventing apparatus for a vehicle according to claim 1, the transmitter freely installed detachably to the towing vehicle side, attach and detach the receiver position in the tractor side looks good from the following vehicle It can be installed freely and the stop lamp of the towing vehicle is turned on and off, and the blinking state of the blinker lamp is transmitted from the transmitter to the receiver, so that the following vehicle can grasp the state of the towing vehicle and send it to the towed vehicle. It is possible to prevent the rear-end collision of the following vehicle. Also, since the ID code is used to identify itself, even if a similar rear-end collision prevention device is used nearby, the following vehicle can be informed of the state of the towing vehicle without malfunction. is there. Further, in the control device on the transmitter side, the output data of the comparator is sequentially and constantly read, and when the output data matches the previous output data and the current output data, the ramp data and the inverted data of the ramp data I am trying to generate
The probability of error in lamp data can be reduced. Further, in the control device on the receiver side, the lamp data and the inverted data of the lamp data are fetched from the signal from the receiving unit, and when the lamp data and the inverted data are collated and matched, it is turned on or off. It can be output as accurate lamp data.

As described above, in the present invention, the rear-end collision prevention device can be simply and removably attached to the towing vehicle and the towed vehicle without performing any processing on the tow vehicle and the towed vehicle. The turn signal lamps and stop lamps of the towing vehicle are turned on, turned off, and blinked in real time according to the blinking and stop lamps of the towing vehicle.
It can be turned off and blinked. Therefore, it is possible to substantially eliminate the risk of a succeeding vehicle traveling behind the towed vehicle colliding with the towed vehicle.

[0070] According to the rear-end collision preventing apparatus for a vehicle according to claim 2, wherein the transmitter and the receiver on the tractor and the towed vehicle through at least one of the magnet rubber plate or suction cup, respectively Since it is detachably installed, the transmitter and receiver can be installed anywhere on the towing vehicle and towed vehicle for ease of use, and the painted surface of the towed vehicle is especially damaged by the magnet rubber plate and suction cup. Without the receiver can be installed detachably.

According to the vehicle rear-end collision prevention device of the third aspect , since the magnet rubber plate is formed with an inclined surface on the lower surface of the magnet rubber plate so as to become thicker toward the rear, The upper surface of the trunk at the rear of the towed vehicle is generally inclined downward toward the rear, but by using the magnet rubber plate, a directional member is used especially for the stop lamp and the winker lamp. In this case, the following vehicle can well recognize the lighting, extinguishing, and blinking states, and can prevent a rear-end collision.

[Brief description of drawings]

FIG. 1 is a block diagram of a rear-end collision prevention device according to a first embodiment of the present invention.

FIG. 2 is a rear view of the towing vehicle showing a state in which the sensor according to the first embodiment of the present invention is attached.

FIG. 3 is a rear view of the towed vehicle showing a state in which the rear-end collision prevention device according to the first embodiment of the present invention is attached.

FIG. 4 is a side view of a case where the towing vehicle pulls the towed vehicle with the rear-end collision prevention device according to the first embodiment of the present invention attached.

FIG. 5 is a block diagram of a transmitter according to a second embodiment of the present invention.

FIG. 6 is a block diagram of a receiver according to a second embodiment of the present invention.

FIG. 7 is a diagram showing a data format according to the second embodiment of the present invention.

FIG. 8 is a diagram showing a data transfer order according to a second embodiment of the present invention.

FIG. 9 is a diagram showing pulse signals of a header section and a data section according to the second embodiment of the present invention.

FIG. 10 is a rear view of the towing vehicle showing a state in which the transmitter according to the second embodiment of the present invention is attached.

FIG. 11 is a rear view of the towed vehicle showing a state in which the receiver according to the second embodiment of the present invention is attached.

FIG. 12 is a perspective view showing another example of a receiver according to the second embodiment of the invention.

FIG. 13 is a diagram showing a state in which a transmitter is attached to the towing vehicle according to the second embodiment of the present invention.

FIG. 14A is a diagram showing a state in which a receiver is attached to a towed vehicle via a magnet rubber plate according to the second embodiment of the present invention. FIG. 6B is a side view of the magnet rubber plate according to the second embodiment of the present invention.

FIG. 15A is a diagram showing a state in which a receiver is attached to a towed vehicle in another embodiment of the present invention via a magnet rubber plate of another example. (B) is a side view of the magnet rubber plate of another example in the 2nd Embodiment of this invention.

FIG. 16 is a diagram showing a state in which a rear-end collision prevention device according to a second embodiment of the present invention is attached and a towing vehicle pulls a towed vehicle.

FIG. 17 is a diagram showing a state where a tow vehicle of another example of the second embodiment of the invention is towing a towed vehicle.

FIG. 18 is a block diagram of a small lamp automatic lighting device according to a third embodiment of the present invention.

FIG. 19 is a diagram showing a state in which a tow vehicle of a conventional example is towing a towed vehicle.

FIG. 20 is a diagram showing a state in which another conventional tow vehicle is towing a towed vehicle.

[Explanation of symbols] 1 towing vehicle 2 towed vehicle 5 Right turn signal 6 Right stop lamp 7 Left turn signal 8 left stop lamp 11 Right turn signal sensor 12 Right stop lamp sensor 13 Left stop lamp sensor 14 Left turn signal sensor 15-18 Comparator 25 Right turn signal lamp 26 Right stop lamp 27 Left stop lamp 28 Left turn signal lamp 30 cases 31 cases 33 magnet rubber plate 35 inclined surface 40 transmitter 41 Control Unit (MPU) 46 ID code generator 47 transmitter 60 receiver 61 Control Unit (MPU) 70 Receiver

Claims (11)

[Claims] 1. A stop lamp (6) for a towing vehicle (1).
Sensors (12) and (13) for detecting turning on and off of (8)
And a stop lamp (26) arranged at the rear of the towed vehicle (2) towed by the tow vehicle (1) and turned on and off in response to a detection signal from the sensors (12) and (13).
(27) A rear-end collision prevention device for a vehicle, comprising: 2. A winker lamp (5) for a towing vehicle (1).
Sensors (11) and (14) for detecting the turning on and off of (7)
And a turn signal lamp (25) arranged at the rear of the towed vehicle (2) towed by the tow vehicle (1) and turned on and off according to a detection signal from the sensors (11) (14).
(28) A rear-end collision prevention device for a vehicle, comprising: 3. A winker lamp (5) for a towing vehicle (1).
(7) and sensors (11) to (14) for detecting turning on and off of the stop lamps (6) and (8), and are arranged at the rear of the towed vehicle (2) towed by the towed vehicle (1). A blinker lamp (25) (28) and a stop lamp (26) (27) which are turned on and off according to a detection signal from the sensors (11) to (14) are provided. Rear-end collision prevention device. 4. The sensors (11) to (14) are arranged on the side of the towing vehicle (1), and the blinker lamps (25) (28) are arranged.
And the stop lamps (26) and (27) are the towed vehicle (2).
The rear-end collision prevention device for a vehicle according to claim 3, wherein the rear-end collision prevention device is arranged in a rear portion of the vehicle and is connected to each other by wire. 5. A case (3) accommodating said blinker lamps (25) (28) and stop lamps (26) (27).
0) (31) is detachably installed on the towed vehicle (2) by at least one of a magnet rubber plate (33) and a suction cup.
The vehicle rear-end collision prevention device described in. 6. A winker lamp (5) for a towing vehicle (1).
(7) and the sensors (11) to (14) for detecting whether the stop lamps (6) and (8) are turned on and off, and this sensor (1
Comparators (15) to (18) for converting analog outputs of 1) to (14) into digital outputs, and a controller (41) for reading output data of the comparators (15) to (18) and generating lamp data. And a transmitter (4) for wirelessly transmitting a signal from the control device (41).
7) and a receiver (70) which constitutes a transmitter (40) arranged in the towing vehicle (1), receives a signal from the transmitter (40), and a signal from the receiver (70). A control device (61) for fetching lamp data from the device and outputting lamp data such as lighting and extinguishing, and a turn signal lamp (25) (28) and a stop which are turned on and off according to the lamp data from the control device (61). Lamp (26) (27)
A vehicle rear-end collision prevention device, characterized in that a receiver (60) arranged in the towed vehicle (2) is constituted by the and. 7. A winker lamp (5) for a towing vehicle (1).
(7) and the sensors (11) to (14) for detecting whether the stop lamps (6) and (8) are turned on and off, and this sensor (1
Comparators (15) to (18) for converting the analog outputs of 1) to (14) into digital outputs, an ID code generator (46) for creating its own ID code, and the comparators (15) to (18). (41) which sequentially reads the output data of the above and the ID code data from the ID code generator (46) to generate the ID code data and the lamp data, and wirelessly transmits the signal from this control device (41). And a transmitter (47) for configuring a transmitter (40) arranged in the towing vehicle (1), and the transmitter (40)
A receiving unit (70) for receiving a signal from the receiving unit, and taking in ID code data from the signal from the receiving unit (70),
Control device (61) that takes in the lamp data and outputs the lamp data when it matches with its own ID code
And a turn signal lamp (25) (28) and stop lamps (26) (27) which are turned on and off according to lamp data from the control device (61), and a receiver arranged in the towed vehicle (2). (60) is constituted, The vehicle rear-end collision prevention apparatus characterized by the above-mentioned. 8. A sensor (1) for turning on and off a stop lamp (6) (8) among the sensors (11) to (14).
2) The vehicle rear-end collision prevention device according to claim 6 or 7, wherein the output of (13) is a logical sum output. 9. The transmitter (40) and the receiver (60) are attached to and detached from a towing vehicle (1) and a towed vehicle (2) via at least one of a magnet rubber plate (33) and a suction cup, respectively. 7. It is freely installed and characterized.
Alternatively, the vehicle rear-end collision prevention device according to claim 7. 10. The magnet rubber plate (33) is characterized in that an inclined surface (35) is formed on the lower surface of the magnet rubber plate (33) so that the thickness becomes thicker toward the rear. Item 8. A vehicle rear-end collision prevention device according to item 8. 11. An outside light sensor (8) for detecting the brightness of outside light.
1) and tail lamps (26) (27) which are turned on by a signal from the external light sensor (81),
A rear-end collision prevention device for a vehicle, which is provided in a towed vehicle (2) towed by a vehicle.