JP7456586B2 - vehicle display system - Google Patents

Description

The present invention relates to a vehicle display system that is equipped with an indicator light on the front part (including door mirrors and fender mirrors) of a vehicle such as a car, truck, motorcycle, etc., so that the vehicle driving condition can be visually confirmed from the front of the vehicle, and particularly relates to a vehicle display system that can be used at a crosswalk. The present invention relates to a vehicle display system that allows pedestrians and passersby to check the stopping operation of vehicles at intersections, etc., or vehicle drivers to check each other at intersections, so that they can safely pass or drive.

For example, a general automobile 1 as shown in FIG. 1 is equipped with a pair of left and right headlights 2, turn signal lamps 3, fog lamps 4, etc. on the front part shown in FIG. The rear portion shown in FIG. 1(B) is provided with a pair of left and right tail lamps 5, a brake lamp 6, a turn signal lamp 7, and the like. In this way, the conventional automobile 1 is equipped with a brake lamp 6 at the rear, and when the driver depresses the brake (pedal), the brake lamp 6 lights up in red to notify the following vehicle that the brake has been pressed. It is supposed to be done. Further, a transparent windshield 8 is provided at the front portion so that the driver can see the front of the vehicle while driving.

In such a car 1, as shown in FIG. 2, when a crosswalk 11 exists on a road 10, when a pedestrian 12 tries to cross the crosswalk 11, the car 1 always stops for the pedestrian. There are situations in which it is not possible to clearly know whether the vehicle will come to you or if it will come by mistake. In such a case, even if the driver of the car 1 sends a signal to the pedestrian 12 with his or her hand, it is difficult for the pedestrian 12 to see the signal, and the driver of the car 1 cannot immediately decide whether or not it is okay to cross the crosswalk 11. It also happens often.

In addition, especially if there is a distance between the oncoming car 1 and the pedestrian 12, the pedestrian 12 may raise his hand to clearly indicate his intention to cross, and even if the driver of the car 1 visually recognizes this, Until now, there was no means for the driver to clearly give a recognition sign to the pedestrian 12, so to speak, there was no means for bidirectional information confirmation between the pedestrian 12 and the driver.

Furthermore, until now, there were no indicator lights on the front of cars to show whether they were running or stopped, so cars passing through intersections such as crossroads without traffic lights could not be sure whether cars coming from right angles could recognize the other car. There are many cases in which people approach intersections with anxiety because they are unable to hold their vehicles.

As a solution to this problem, Registered Utility Model No. 3119645 proposes that a brake lamp be provided at the front of the automobile.

Registered utility model No. 3119645 Japanese Patent Application Publication No. 60-24479 Japanese Patent Application Publication No. 2002-240624 Japanese Patent Application Publication No. 2020-147133 JP 2016-41589 A

However, Patent Document 1 only discloses that the wiring of the rear brake lamp is combined with the front brake lamp, and only one front brake lamp is provided. Therefore, with the brake lamp disclosed in Patent Document 1, it is unclear whether it is possible to reliably notify pedestrians that the driver has stepped on the brake pedal, and there is no technical explanation at all, and it is just an idea. The disclosure remains.

When vehicles are passing through intersections such as the crossroads mentioned above, if it is possible to visually check the stopping operation of vehicles that do not have the right of way through the indicator lights of vehicles that do not have the right of way, this will contribute to the safe and secure driving of each vehicle at the intersection. can.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide information to pedestrians and others that the driver of a vehicle such as a car depresses the brake pedal to ensure that the vehicle decelerates and comes to a stop. A vehicle display that allows for a two-way confirmation process between drivers and pedestrians or for the drivers of intersecting vehicles to confirm each other, ensuring compliance with vehicle driving laws and safety for pedestrians and vehicles. The goal is to provide a system.

The present invention relates to a vehicle that is driven by a driver and is stopped by stepping on a brake pedal, and the above object of the present invention is to provide an indicator light provided on the front portion, door mirror, or fender mirror of the vehicle; a display control section that turns on/off the indicator light based on a brake signal interlocked with the brake pedal, the vehicle speed and acceleration of the vehicle, and the display control section includes a memory for inputting time data; The display control unit is configured to display a second display when the vehicle speed is below a predetermined value V2 (<V1) and the acceleration is a deceleration, when the vehicle speed is V1 or less and the brake signal is input. , a third time when the vehicle speed is approximately zero and the deceleration is approximately zero is stored in the memory, the indicator light is lit in orange during the first time, and the second time is At the third time, the indicator light is lit in yellow, and at the third time, the indicator light is lit in green or blue, and when a pedestrian or a driver of another vehicle approaches the vehicle from the front. This is achieved by making the deceleration and stopping operations of the vehicle visible.

According to the vehicle display system of the present invention, the indicator light is provided on the front part of the vehicle and lights up to indicate the vehicle running status after the driver steps on the brake, so pedestrians and passersby at crosswalks etc. You can travel more safely and securely. This also contributes to safe driving for the driver of the vehicle, as the driver can notify pedestrians that he or she is stepping on the brakes and coming to a stop. Further, since drivers passing through an intersection can visually check the condition of the other vehicle, they can drive through the intersection safely and securely.

Vehicle drivers can be notified by lighting a lamp (LED) instead of using hand signals, ensuring the safety of pedestrians, especially when driving at night, and is expected to have a significant effect on road safety measures.

FIG. 1 is an external configuration diagram of a typical automobile. FIG. 3 is a plan view showing the relationship between cars and pedestrians at a crosswalk. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an example of an automobile equipped with an indicator light according to the present invention in its front section. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an example of an automobile in which a door mirror is equipped with an indicator light according to the present invention. 1 is a front view and partial cross-sectional view showing an example of an automobile in which an indicator lamp (organic EL) according to the present invention is mounted on the windshield. FIG. FIG. 1 is a partial cross-sectional view showing an example of a driver's seat of an automobile. FIG. 2 is a block diagram showing a configuration example of a display control section of the present invention. FIG. 1 is a schematic diagram showing an example of an indicator light according to the present invention. FIG. 2 is a block diagram showing a configuration example of a lighting color control section. 3 is a flowchart showing an example of the operation of the present invention. 5 is a time chart showing an example of the operation of the relationship between the braking state of the vehicle and the lighting of the indicator light. 5 is a time chart showing an example of signal output. FIG. 7 is a block wiring diagram showing another example of the configuration of the lighting color control section.

FIG. 3 shows a front view of an automobile 100 equipped with an elongated indicator light 110 according to the present invention on the external surface of the front part, and FIG. 2, and FIG. 3B shows an example in which the indicator light 110 is mounted on the upper outer surface of the windshield 8. The indicator light 110 may be a halogen lamp or the like, but is preferably an LED (Light Emitting Diode) from the viewpoint of power saving. Furthermore, in this example, the indicator light 110 is placed at the same height as the headlights 2 and above the windshield 8, but a pedestrian or the like can visually see the lighting (or flashing) of the indicator light 110 from the front of the vehicle 100. There are no special restrictions as long as the position is possible. In addition, the shape and size of the indicator light 110 can be arbitrary, but it must be distinguishable from conventional lighting and flashing lights, and be reliably visible to pedestrians and others from the front (including diagonally) and even on rainy days. , a long or linear shape is desirable.

FIG. 4 shows an example in which indicator lights 110A1 and 110A2 according to the present invention are attached in a curved manner to the front side (housing) of the door mirror 9 on both sides, and they may be attached to the door mirror 9 in this way. In order to be easily visible from the front or from the side, a linear indicator light is preferable. Further, in a vehicle equipped with a fender mirror instead of a door mirror, an indicator light similar to that shown in FIG. 4 is provided on the fender mirror.

In addition, in the above-mentioned embodiments, the indicator light is provided on the outside of the vehicle body or the housing such as the door mirror, but when a flexible organic EL (Electroluminescence) is used as the indicator light, the indicator light shown in FIG. ) and (B), it can also be provided by being attached to the inside of the windshield 8. That is, as shown in FIG. 5(B), an elongated organic EL indicator light 110B1 (110B2) is pasted on the back side of the windshield 8 on the inside of the curved windshield 8, and as shown in FIG. 5(A). As shown, organic EL indicator lights 110B1 and 110B2 are provided at left and right positions that are visible from the front of the automobile 1 and do not interfere with driving. Organic EL can ensure visibility even from diagonal directions, so pedestrians can be clearly seen.

As described below, the indicator light 110 is turned on and off based on the driver's brake pedal depression, the vehicle speed, and acceleration (deceleration). Figure 6 shows a state in which a driver 102 is sitting in the driver's seat of an automobile 100 and driving, and the indicator light 110 is provided at the tip of the front part of the automobile 100 (in the case of Figure 3 (A)). Then, when the automobile 100 approaches a stopping position such as a crosswalk, the driver 102 depresses the brake pedal 101 to stop the automobile. The same applies at intersections.

FIG. 7 shows a configuration example of the display control unit 130 that controls turning on and off of the indicator light 110. In this example, the indicator light 110 is changed in three colors (orange, yellow, green) according to the vehicle condition. The light will turn on. A brake signal BS output when the brake pedal 101 is depressed is input to the lighting/extinguishing section 131 as well as to the lighting color control section 140 and the memory 150. The lighting/extinguishing unit 131 turns on (red) or extinguishes the brake lamp 5 according to the brake signal BS. That is, similar to current automobiles, when the brake is not pressed, the brake lamp 5 provided at the rear part is turned off, and when the brake is pressed, the brake lamp 5 is turned on in red.

Further, the vehicle speed VS from the CAN (Control Area Network) is input to the determination section 132 and compared with the set vehicle speed _V0 set in the setting section 133, and when the vehicle speed VS is almost zero (for example, 2 km/h or less). It is input to the zero detection section 135 which detects that the zero value has become zero. The determination signal DV, which is the determination result of the determination section 132, is input to an AND circuit 137, and the zero detection signal ZV from the zero detection section 135 is input to an AND circuit 138. The determination signal DV is output when the vehicle speed VS becomes equal to or less than the set vehicle speed _V0 , and the zero detection signal ZV is output when the vehicle speed VS becomes approximately zero.

Further, the acceleration AS transmitted from the CAN or an acceleration sensor attached to the vehicle body, or obtained by differentiating the vehicle speed VS, is input to the deceleration detection unit 134 that detects deceleration, and also detects deceleration. The signal is input to a zero detection unit 136 that detects that the signal has become almost zero. When the deceleration detection unit 134 detects deceleration (negative acceleration) of the acceleration AS, the deceleration detection unit 134 outputs a deceleration signal DT, and the deceleration signal DT is input to the logical product AND circuit 137. On the other hand, the zero detection unit 136 detects that the acceleration AS has become almost zero and outputs a zero detection signal ZA, and the zero detection signal ZA is input to the AND circuit 138 of logical product.

The AND signal VL from the AND circuit 137 is input to the lighting color control section 140 and the memory 150, and the AND signal AL from the AND circuit 138 is also input to the lighting color control section 140 and the memory 150. That is, when the determination unit 132 detects that the vehicle speed VS is less than or equal to the set vehicle speed _V0 and outputs the determination signal DV, and the deceleration detection unit 134 detects deceleration and outputs the deceleration signal DT. , AND signal VL is output from the AND circuit 137. Further, when the zero detection unit 135 detects that the vehicle speed VS is approximately zero and the zero detection unit 136 detects that the deceleration is approximately zero, an AND signal AL is output from the AND circuit 138. be done.

A brake signal BS is also input to the lighting color control section 140, and the lighting color control section 140 turns on or off the indicator lamp 110 in three colors depending on the vehicle condition. The brake signal BS, AND signals VL and AL are input to the memory 150, and are stored in the memory 150 in association with time data TD from a CAN or the like. The memory 150 outputs stored data ST as appropriate and is used for verification and the like.

As shown in FIG. 8A, the indicator light 110 of this example is composed of an orange lamp 111, a yellow lamp 112, and a green lamp 113, each of which lights up in orange, yellow, or green. The lighting of the orange lamp 111, the yellow lamp 112, and the green lamp 113 has a brightness that can be seen by passersby from in front of the automobile 100.

The lighting color control unit 140 that turns on or off the indicator light 110 has a configuration as shown in FIG. 9, for example, and includes a switch means 141 having contacts a1 (power supply) and b1 (grounding), and contacts a2 (power supply) and b2. (ground) switch means 142. The brake signal BS is input as a switching signal to the switch means 141, and the orange lamp 111 is turned on with the contact point a1. Further, the AND signal VL is input as a switching signal to the switch means 141 and 142, and the contact point of the switch means 141 is set to b1 to turn off the orange lamp 111, and the contact point of the switch means 142 is set to a2 to turn on the yellow lamp 112. Further, the AND signal AL is input as a switching signal to the switch means 142, and the contact point of the switch means 142 is set to b2 to turn off the yellow lamp 112 and turn on the green lamp 113.

Note that the switch means 141 and 142 may be analog switches or the like. Further, the light may be lit in blue instead of green.

In such a configuration, an example of its operation will be described with reference to the flowchart in FIG. 10 and the time charts in FIGS. 11 and 12. Time points t1, t2, and t3 in the time charts of FIGS. 11 and 12 correspond.

In the operating state (step S10) before time t1 in FIGS. 11 and 12, the brake is not depressed and the brake signal BS is not output. In this operating state, the contact of the switch means 141 is connected to b1 (ground), and the contact of the switch means 142 is connected to b2 (ground), and the AND signal AL is not output. The orange lamp 111, yellow lamp 112, and green lamp 113 are also all turned off.

Then, at time t1, when the automobile 100 reaches a crosswalk or a temporary stop position, and the driver 102 depresses the brake pedal 101 (step S11), the brake signal BS is output (step S12), and the lighting/ The brake lamp 5 is turned on via the extinguishing section 131 (see FIG. 11(B)), and the contact point of the switch means 141 in the lighting color control section 140 is switched from b1 to a1, so that the orange lamp 111 of the indicator lamp 110 is turned on. lights up (step S13, see FIG. 11(C)). The brake signal BS is input to the memory 150 and is stored in association with the time data TD. This means that you can later confirm or verify when the brake was pressed.

By depressing the brake pedal 101, the vehicle speed VS gradually decreases as shown in FIG. 12(B), and the acceleration AL also reverses from positive to negative as shown in FIG. 12(C). In other words, the deceleration is on the negative side. The acceleration AL is input to the deceleration detection unit 134 to detect deceleration (deceleration acceleration) (step S14), and the vehicle speed VS is input to the determination unit 132 and compared with the set vehicle speed _V0 set in the setting unit 133 ( Step S15). When it is determined in steps S14 and S15 that the vehicle is decelerating and that the vehicle speed is below the set vehicle speed _V0 (time t2), the AND signal VL is output from the AND circuit 137 (step S20). If the vehicle speed is not decelerated in step S14, and if the vehicle speed is greater than the set vehicle speed _V0 in step S15, the process returns to step S13.

The AND signal VL is input to the switch means 141 and 142 in the lighting color control section 140, and the orange lamp 111 is turned off by switching the contact point of the switch means 141 from a1 to b1, and the contact point of the switch means 142 is changed from b2 to a2. By switching, the yellow lamp 112 is turned on (step S21, see FIG. 11(C)). The AND signal VL is input to the memory 150 and is stored in association with the time data TD.

Furthermore, the vehicle speed VS is input to the zero detection section 135, and the acceleration AS is input to the zero detection section 136. When the vehicle speed VS becomes zero or near zero (time t3), a zero detection signal ZV is output and the AND circuit 138 (step S22), and similarly, when the acceleration AS becomes zero or near zero (time t3), the zero detection signal ZA is output and input to the AND circuit 138 (step S23). In this way, when the zero detection signal ZV of the vehicle speed VS and the zero detection signal ZA of the acceleration AS are output, the AND circuit 138 outputs the AND signal AL (step S24), and the AND signal AL 113 is turned on, and the contact of the switch means 142 is switched from a2 to b2 to turn off the yellow lamp 112 (step S25, see FIG. 11(C)). The AND signal AL is input to the memory 150 and is stored in association with the time data TD.

In this way, in the present invention, the indicator light 110 lights up in three colors depending on the vehicle condition (vehicle speed, deceleration) after the driver 102 steps on the brake, so that pedestrians etc. in front of the automobile 100 are not After confirming that the automobile 100 has stopped, the user can confirm that it is safe, and then walk. The same applies to oncoming vehicles at intersections.

In the above description, the indicator light is composed of three colors, an orange lamp 111, a yellow lamp 112, and a green lamp 113, as shown in FIG. 8(A) (each lamp may be an LED), but in FIG. 8(B) As shown, it is also possible to light up in three colors (red, yellow, green) using two-color LEDs, a red LED 114 and a green LED 115.

The lighting color control section 140A in this case has the configuration shown in FIG. 13, and is composed of a switch means 143 having contacts a3 (power supply) and b3 (ground), and OR circuits 144 and 145. Switching of the contacts a3 and b3 of the switch means 143 is performed by the output of the OR circuit 144 and the AND signal AL, the output of the switch means 143 is connected to the red LED 114, and the green LED 115 is turned on/off by the output of the OR circuit 145. Ru.

In such a configuration, the switch means 143 is normally connected to the contact b3, and the red LED 114 is turned off. Furthermore, since the AND signal AL is not being output from the AND circuit 138, the green LED 115 is also turned off. When the brake signal BS is input, the contact of the switch means 143 is switched from b3 to a3 through the OR circuit 144 and connected to the power supply, so that the red LED 114 is lit. In this state, when the AND signal VL is input from the AND circuit 137, the output of the OR circuit 144 remains unchanged and the contact point of the switch means 143 remains at a3, the red LED 114 remains lit, and the OR circuit 145 is After that, the green LED 115 is turned on. That is, in this state, both the red LED 114 and the green LED 115 are turned on, and the lighting of the red LED 114 and the green LED 115 results in yellow light emission due to the light mixing principle.

Next, when the AND signal AL is input, the AND signal AL is input to the switch means 143 and switches the contact from a3 to b3, so the red LED 114 is turned off, but the output of the OR circuit 145 remains unchanged. The green LED 115 remains lit.

In the above-described embodiment, when the brake is stepped on, the orange lamp or red LED of the indicator light is turned on, but it may be configured so that it does not turn on, or it may be turned on in another color, for example, yellow. good. Further, although the above description has been made regarding a car, the present invention can be similarly applied to vehicles such as trucks and buses.

1, 10 Automobile (passenger car)
2 Headlight 3 Turn signal lamp 4 Fog lamp 5 Tail lamp 6 Brake lamp 7 Turn signal lamp 8 Windshield 9 Door mirror 10 Road 11 Crosswalk 12 Pedestrian 101 Brake pedal 110 Indicator light 130 Display control section 131 Turn on/off section 132 Judgment section 133 Setting section 134 Deceleration detection section 135, 136 Zero detection section 137, 138 AND circuit 140 Lighting color control section 141, 142, 143 Switch means 144, 145 OR circuit 150 Memory

Claims (3)

In a vehicle that is driven by a driver and is stopped by depressing the brake pedal,
an indicator light provided on the front part of the vehicle;
a display control unit that turns on/off the indicator light based on a brake signal linked to the brake pedal, the vehicle speed and acceleration of the vehicle;
Equipped with
The display control unit includes a memory for inputting time data,
The display control section includes:
a first time when the vehicle speed is below a predetermined value V1 and the brake signal is input; a second time when the vehicle speed is below a predetermined value V2 (<V1) and the acceleration is deceleration; A third time when the vehicle speed is approximately zero and the deceleration is approximately zero is stored in the memory, the indicator light is lit in orange during the first time, and the display is displayed when the second time is set. The light is turned on in yellow, and the indicator light is turned on in green or blue at the third time,
A vehicle display system characterized in that deceleration and stopping operations of the vehicle can be visually observed from the front of the vehicle. The vehicle display system according to claim 1, wherein the indicator light is an organic EL, and the organic EL is attached to the inside of the windshield. In a vehicle that is driven by a driver and is stopped by depressing the brake pedal,
indicator lights provided on the front side of the housing of door mirrors or fender mirrors on both sides of the vehicle;
a display control unit that turns on/off the indicator light based on a brake signal linked to the brake pedal, the vehicle speed and acceleration of the vehicle;
Equipped with
The display control unit includes a memory for inputting time data,
The display control section includes:
a first time when the vehicle speed is below a predetermined value V1 and the brake signal is input; a second time when the vehicle speed is below a predetermined value V2 (<V1) and the acceleration is deceleration; A third time when the vehicle speed is approximately zero and the deceleration is approximately zero is stored in the memory, the indicator light is lit in orange during the first time, and the display is displayed when the second time is set. The light is lit in yellow, and the indicator light is lit in green or blue at the third time,
A vehicle display system characterized in that deceleration and stopping operations of the vehicle can be visually observed from the front of the vehicle.

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