JPH0231955A - Device for alarming deceleration and stoppage of automobile - Google Patents

Abstract

PURPOSE:To lose no time in notifying a following automobile of braking at the time of the occurrence of emergency by providing a switching element for cutting off the power circuit of brake lamps in the pressed condition of an accelerator pedal while connecting same in the no-pressed condition. CONSTITUTION:As a switch 8 is turned on simultaneously with the start of traveling, a circuit becomes an operating condition. At this time, just as a foot is separated from an accelerator pedal 2 under the necessity of decelerating or stopping a vehicle, a microswitch 6 is pressed by a pedal lever 3 to connect the circuit. Thereby, brake lamps 9 are turned on and, after that, the same condition is continued whether a brake pedal 2 is stepped in or the foot is separated from the pedal, and the brake lamp 9 is turned off only when the accelerator pedal 2 is again stepped in. Thereby, the intention of deceleration is promptly conveyed to the following automobile, preventing the occurrence of rear-end collision accident at the time of sudden deceleration of stoppage of an automobile while traveling at a high speed with a short distance between automobiles.

Description

[Detailed description of the invention] [Field of application of the invention]

The present invention relates to improvements in deceleration and stop warning devices for automobiles, and more particularly, to a device for turning on a brake lamp before pressing the brake pedal when a driver wants to stop or decelerate.

[Conventional technology]

Conventionally, all automobiles have been equipped with a device that lights up a rear brake lamp to alert the driver of a following vehicle when the driver of the vehicle depresses the brake pedal for some reason.

[Problem to be solved]

However, during actual driving, there are various unexpected incidents such as forcible cutting in, unexpected lane changes, finding a parked vehicle just after a curve with no visibility, falling luggage from the vehicle in front, a child jumping out, a flat tire, etc. It often happens that you have to make a sudden stop for various reasons. In such a case, it is natural to suddenly apply the brakes by switching from the accelerator pedal to the brake pedal, but it usually takes 0.4 seconds to change the pedal, and during this time the vehicle travels approximately 11.1 m at 1100 km/h. , it travels about 6.7m even at 60km/h. These distances are sufficient to make the driver of the following vehicle aware of the braking of the vehicle in front and bring the vehicle to a sudden stop when there is sufficient distance between vehicles, but in actual driving it is not possible to maintain the specified distance between vehicles. Therefore, in order to prevent rear-end collisions, it is desirable to notify the following vehicle of braking as soon as possible.

[Problem to be solved by the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a means for notifying a following vehicle of braking as quickly as possible in response to the occurrence of an emergency situation while the vehicle is running as described above.

[Means to achieve the purpose]

(Summary) In order to solve the above-mentioned problems, the vehicle deceleration and stop warning device according to the present invention interrupts the brake lamp power supply circuit when the accelerator pedal is pressed, and connects the circuit when the pedal is not pressed. 6. Below, main matters related to the invention will be explained in detail. (Main part) The accelerator pedal in the present invention may be exactly the same as the conventional one. What is important is that the return movement of the pedal lever due to release of pressure on the accelerator pedal causes the switch inserted in the brake lamp circuit to "open". All that is required is that the switching element is positioned so as to change from the "closed" state to the "closed" state. Therefore, the switching element is
Any position in the engine room that can be operated directly by the movement of the lever or indirectly by the movement of the throttle opening/closing wire connected to the lever (for example, on the outside of the carburetor). can be attached to. However, for boat fishing, it is best to follow the former method and attach it to the front of the partition that separates the engine room and the driver's seat (the front side of the partition that corresponds to the back side of the accelerator pedal lever), and operate it directly by swinging the pedal lever. preferable. The above circuit is provided in parallel with a normal warning circuit for the brake pedal. Therefore, depending on whether or not the accelerator pedal and brake pedal are depressed, the brake lamp operates as shown in the table below. In this way, the brake light will turn on when the pressure on the accelerator pedal is released, but
Turning on the brake lights only wastes power when you are driving stably on a quiet lane, driving down a boardwalk using engine braking, or parking. Therefore, it is preferable to provide a circuit disconnection switch separately from the main switch so that the circuit can be disconnected when not in use. In particular, it is most desirable to provide a switch that is activated by the ground speed of the vehicle and a switch that is activated by the forward tilt of the vehicle body, so that the switch is activated automatically when the vehicle speed drops below a certain level or when the vehicle body tilts forward by a certain angle or more. The circuit is configured so that it is disconnected when the As such an automatic switch, it is suitable to use, for example, a rotary switch balanced with the rotational torque of an eddy current sensor connected to the axle, and a tilt switch using a potentiometer type or torque balance type sensor fixed to the frame. It is.

[Effect]

The deceleration and stop warning circuit according to the present invention operates at the same time as the accelerator pedal is released, and always turns on the brake lamp earlier than the conventional brake pedal operation to alert the following vehicle, so it is highly effective in preventing rear-end collisions. play.

【Example】

Examples of the present invention will be described below, but the descriptions are merely illustrative and do not define the scope or scope of the spirit of the invention. Embodiment 1 FIG. 1 is a partial schematic diagram schematically showing the structure of an automobile deceleration and stop warning device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram thereof. The device 1 of this example includes a finely adjustable microswitch 6 attached to a partition wall 5 from the engine room corresponding to a position above the fulcrum 4 of the lever 3 of the accelerator pedal 2, and a power source 7.
and manual power switch 8 installed near the instrument panel.
and an electric wire 10 connecting the brake lamp 9 and the brake lamp 9. When the switch 8 is turned on at the same time as the vehicle starts running, the circuit becomes operational. Here, as soon as the need to decelerate or stop arises and you release your foot from the accelerator pedal 2, the micro switch 6 is pressed by the pedal lever 3 and the circuit is connected, thereby the brake lamp 9 lights up, and from then on the brake The same state continues even if the pedal 11 is depressed or released, and the brake lamp 9 turns off only when the accelerator pedal 2 is depressed again. Therefore, the intention to decelerate is quickly notified to the following vehicle, and rear-end collisions are prevented from occurring even when the vehicle suddenly decelerates or stops while traveling at high speed with a short distance between vehicles. Embodiment 2 FIG. 3 is a schematic perspective view of essential parts showing an example in which the manual power switch 8 of the previous example is replaced with a speed detection type automatic power switch 12. The switch 12 of this example includes an annular permanent magnet 1 connected to an axle (not shown) via a universal joint 13.
4, a conductor cup 15 pivotally supported in proximity to the magnet,
It consists of a rotary switch element 16 coaxially attached to the axis ISa of the conductor cup, and a balance balance spring 17 balanced with the rotational force of the axis 15a. The eddy current generated by the rotation of the axle, that is, the rotation of the magnet 14, tends to rotate the conductor cup 15 in proportion to the rotational speed, but this movement is restrained by the hairspring 17. Therefore, if the elastic force of the mainspring 17 is balanced with the rotational speed of the axle corresponding to a predetermined speed, when the vehicle speed exceeds the predetermined value, the rotational torque of the shaft +5a will be overcome and the switch lever 16a will contact the contact point 16b. make contact and conduct the circuit. This conductive state continues until the vehicle becomes less than the predetermined value, so that when the accelerator pedal 2 is released in the previous example, the circuit is sufficiently maintained in the operating state. When the vehicle speed decreases sufficiently, the circuit on the brake pedal side operates to keep the brake lamps in a state where they can still be turned on. In this way, the automatic switch illustrated in this example eliminates the need to turn on and off the manual switch one by one while keeping the inventive device operational as long as the vehicle is traveling above a certain speed. It has the advantage of

【Effect of the invention】

As explained above, the present invention is an extremely effective means for traffic safety because it can provide a means for instantly notifying following vehicles of braking in response to the occurrence of an emergency situation while the vehicle is running. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a partial schematic diagram schematically showing the configuration of an automobile deceleration and stop warning device according to an embodiment of the present invention, FIG. 2 is a circuit diagram thereof, and FIG. FIG. 4 is a schematic perspective view of main parts showing an example of a changed automatic switch 12. FIG. The meanings of the symbols in the diagram are as follows: 1: Whole of the invented device; ・2: Accelerator pedal ・3: Pedal lever at 2; 4: Fulcrum at 3; ・5: Bulkhead; ・6: Micro switch; 7: Power supply; ・8: Manual switch; ・9 Brake lamp; ・10: Electric wire; ・11 Brake pedal ・12: Automatic power switch: ・13; Universal joint ・14: Permanent magnet; ・15: Conductor cup; - 15a+15 rotating shaft; -16: rotary switch element; -16a+16 switch lever, 16b: 16 contact; 17: balance balance spring.

Claims (1)

[Scope of Claims] 1. A deceleration and stop warning device for a motor vehicle, comprising a switching element that cuts off a brake lamp power supply circuit when the accelerator pedal is pressed and connects the circuit when the pedal is not pressed. . 2. The device according to claim 1, wherein the circuit according to claim 1 is configured to be manually disconnectable. 3. The device according to claim 1, wherein the circuit according to claim 1 is configured to be automatically connected or disconnected depending on the ground speed of the vehicle. 4. The device according to claim 1, wherein the circuit according to claim 1 is configured to be automatically disconnected in response to a forward tilt of the vehicle.