KR19980030456A - Automatic operation of the warning device using the quick break detection - Google Patents

Abstract

The present invention is to provide a warning light automatic lighting device that automatically activates the warning light when the driver of the vehicle brakes, when the driver of the vehicle recognizes a collision with the momentary moment to press the brake pedal with the force of the brake device It works. At this time, the high pressure per unit time is applied to the master cylinder (figure 5) or the pressure generating device 1 of the braking device, and the pressure increase / decrease (change width) appears temporarily large. will be.

When driving a car, the driver often starts a sudden brake due to unexpected unexpected obstacles or road breakage, and when the sudden brake is activated, the driver may not be informed of the sudden brake operation quickly, leading to an accident. There is often a lot. In particular, when the road situation is not good, such as sudden stop of the front car during high-speed driving on the highway, the brakes are frequently operated. At this time, the warning lights are activated to give attention to the surrounding cars, and the warning lights have the effect of preventing accidents. However, when a novice driver or an experienced driver is embarrassed while driving, the warning light is not activated, which leads to a chain crash. In particular, many accidents occur when the view distance is short due to rain or fog.

In the present invention, a novice or experienced driver is embarrassed to turn on the warning light, or to eliminate the accident caused by the delay of the speed of turning on the warning light, in particular by minimizing the problems caused by the position of the warning light different depending on the car manufacturer and model, It aims to ensure the safety of the driving vehicle by automatically turning on the warning light or activating the horn when necessary so that the driver of the vehicle following the sudden stop of the vehicle can immediately recognize it.

Description

Automatic operation of the warning device using the quick break detection

1: Cross section of a rapid brake detecting device having a pressure generating part separately from the detecting device

2: Cross section of sudden brake detecting device installed on part of master cylinder or brake pipe

3 is a cross-sectional view of the piston in the sudden brake detection device shown in FIGS.

4 is a cross-sectional view of the operation detecting device of the rapid brake inducing a rotational motion in the sensing device of FIG.

5 is a structural cross-sectional view of the master cylinder for generating hydraulic pressure in the brake device of the vehicle

6: Flow (movement) direction of the brake fluid due to the pressure generated in the master cylinder shown in FIG.

7: Working principle of the brake

8: Structure diagram of the brake pedal

9 is a sectional view of a sudden brake detecting device installed in a direction different from the literal springs 81 and 82 of FIG.

10: Cross section of sudden brake detecting device composed of two pistons in one cylinder

* Brief description of symbols for the main parts of the drawings

-.1: Pressure generating cylinder that induces pressure by inducing linear movement of piston according to brake pedal movement

-.2: Spring to repress brake pedal and retract pressure generating piston

-.3: piston of pressure generating part (1)

-.4: Piston of sensing device (5)

-.5: Cylinder of the sensing device that activates the switch connected to the warning light and induces the linear or rotary movement of the piston.

-. 6: Switch (contact terminal) connecting the detection device and the warning device

-. 7: liter spring to retract the piston of the sensing device 5 to interrupt the switch connected to the warning device

-.8: Brake Pedal

-.9: When the brake pedal is pressed, the direction of movement of the piston rod connected to the pedal

-.10: Movement direction of piston rod connected to switch when brake pedal is pressed

-.11: piston rod of sensing device connected to switch (contact point)

-.12: piston rod of pressure generating cylinder (1) connected to brake pedal

-.13: Inlet and outlet to induce the movement of pressure between the pressure generating cylinder (1) and the sensing cylinder (5)

-.14:

-.15: Moving outlet of pressure transfer medium in sensing device piston (4)

-.21: Direction of movement of sensing device piston when pedal is pressed

-.22: Piston of sensing device

-.23: Return spring of sensing device

-.24: Direction of piston movement of sensing device when pedal is released

-.25: Brake fluid outlet of sensing device piston

-.26: piston rod of sensing device

-.27: switch connected to sensing device

-. 28: brake pipe (same as the brake pipe 74 of FIG. 7)

-.29: Cylinder of sensing device

-.41: Rotating blade of sensing device

-.42: Rotational movement of the rotor blade rod according to the movement of the rotor blade

-.51: Brake fluid outlet of master cylinder

-.61: Master cylinder operation and brake fluid flow direction when pedal is pressed

-.62: Master cylinder operation and brake fluid flow direction when pedal is released

-.71: master cylinder

-.72: Oil Dispenser

-.73: Wheel Cylinder

-.74: Brake Pipe

-.81: liter spring of floor brake pedal

-.82: Literal spring for pendant brake pedal

-.91: Piston rod movement direction of pressure generating part when brake pedal is pressed

-.92: Piston movement direction of sensing device that activates switch when brake pedal is pressed

-.93: switch contact

-.101: Rapid brake detector cylinder consisting of 1 cylinder

-.102: Piston

-.103: Piston with pressure transfer medium entry and exit holes

-.104: inlet and outlet of pressure transfer medium (air or liquid)

-.105: Switch (contact terminal) connecting the sensing device and the warning device

-.106: Spring to literate piston (102)

-.107: Spring that literally pistons (103)

-.108: space between piston 102 and piston 103

The present invention is to provide an automatic warning device that automatically activates a warning light or horn when a driver of a vehicle brakes, and when the driver of the vehicle detects a collision, the brake device is pressed with all the momentary force. Activate At this time, a high pressure per unit time is applied to the master cylinder (FIG. 5) or the pressure generating device (FIG. 1 first cylinder) of the braking device, and the increase or decrease of the pressure (change width) appears temporarily large. Is for automatic operation.

When driving a car, the driver often starts a sudden brake due to unexpected unexpected obstacles or road breakage, and when the sudden brake is activated, the driver may not be informed of the sudden brake operation quickly, leading to an accident. There is often a lot. In particular, when the road situation is not good, such as sudden stop of the front car during high-speed driving on the highway, the brakes are frequently operated. At this time, the warning lights are activated to give attention to the surrounding cars, and the warning lights have the effect of preventing accidents. However, when a novice driver or an experienced driver is embarrassed while driving, the warning light is not activated, which leads to a chain crash. In particular, many accidents occur when the view distance is short due to rain or fog.

The present invention eliminates the accident caused by the novice or experienced driver to turn on the warning light or the delay of the speed of turning on the warning light, and at the same time with the sudden brake operation so that the driver of the car following the sudden stop of the front car can immediately recognize. It aims to ensure the safety of the car in operation by automatically turning on the warning light and automatically operating the horn when necessary.

In the case of a high-speed car, a warning signal is given to a driver following a sudden brake operation due to a sudden obstacle or slowing down in front of the driver, that is, to suddenly apply a brake, and to a driver of a nearby vehicle. It is widely known as a way to prevent it.

Since a car runs at 27.8m per second when running at 100km / h and 2.8m per 0.1 second, the warning lights should be activated without delay when the need is recognized by the following car and surrounding cars. However, since the switch for the operation of the warning light is operated manually now, the brake light does not come on suddenly and the time difference occurs because the warning light does not come on, so to eliminate this time difference, the master cylinder and the wheel When suddenly a large pressure is applied to the brake pipe 74 between the cylinders to detect the piston rod movement of the sensing device (Figs. 2 and 4), the switch was operated to activate the warning device automatically.

Instead of the brake pedal's literal spring, the cylinder and two pistons were combined, and the detection device (Fig. 1, 9), which also functions as the literal spring, was installed to detect sudden brakes and automatically activate the warning device. The detector (FIGS. 1 and 9) was further simplified to automatically activate the warning device using a detector (FIG. 10) consisting of one cylinder and two pistons.

Based on the principle of the general braking system, the principle of the sensing means is understood. The braking system of the vehicle includes main brakes, parking brakes, and hand brakes. The driver momentarily presses the main brake (Service Brake) to activate the main brake. The main brakes are hydraulic brakes, pneumatic brakes and hydraulic brakes. In particular, the hydraulic brake has the advantage that the braking force is equally transmitted to all the wheels and the friction loss is small, so that the operation force can be reduced.

Looking at its components there is a master cylinder (Fig. 5) to apply a pressure, as shown in Figs. 6 and 7, the pressure generated in the cylinder of the master cylinder 71 is transmitted to the wheel cylinder 73 along the brake pipe 74 The brake is activated.

When the brake pedal is pressed in a known manner (Figs. 5 and 6), the piston is pushed to the left, first, when the piston cup closes the literal hole and moves further to the left, the brake fluid in the cylinder is pressurized to open the check valve to open the brake pipe. Pass the hydraulic pressure on each wheel cylinder. At this time, the literal and supply holes are behind the piston cup, so the space between the secondary cup and the piston cup is filled with brake oil from the oil supply tank, so that the piston fluid can be lubricated and the brake fluid when the pedal is pressed again. Prepare to supply.

When the brake pedal is released (Figs. 5 and 6), the piston is retracted by the force of the literal spring and the check valve is closed, so the front of the piston cup is temporarily depressurized and flows low pressure past the outer circumference of the piston cup. Let's go back quickly. On the other hand, the brake fluid pressurized by the wheel cylinder is pressurized by the brake shoe spring, so the valve is opened and returned to the cylinder. When the piston returns completely, the following brake fluid passes through the literian hole and returns to the oil tank, but since the literal spring always presses the check valve, it closes the check valve with some pressure remaining in the wheel cylinder.

In general, hydraulic brakes have a defect that can not be braked if a breakdown of hydraulic fluid occurs in the hydraulic system.Therefore, in order to increase the safety, two master cylinders in which the hydraulic system is used as two systems for the front wheel and the rear wheel are connected in series. Arranged in the form of one piston for the front wheel and the rear wheel piston is coupled to each other through the oil distributor 32 to the wheel cylinder.

In the brake device described above, a warning device is installed on the brake pipe 74 between the end of the master cylinder 71 and the oil distributor 72 to detect a sudden brake, that is, sudden brake operation. Regardless of whether it was activated automatically.

Looking at the second component of the sensing device, the part connected to the brake fluid outlet 51 of the master cylinder and the cylinder 29, the piston 22, the piston rod 26, the contact 27 connected to the piston rod, liter It consists of an unspring 23, the brake fluid discharge port 25 of a piston, the brake pipe part 74 connected with the wheel cylinder, etc. And the sensor component of FIG. 4 is configured to use the rotary blade 41 instead of the piston 22 so that the rod of the rotary blade makes a rotary motion 42 when there is a momentary large pressure change in the cylinder.

When the brake pedal is pressed briefly and weakly, the direction 61 of movement of the brake fluid is transferred to the wheel cylinder, that is, through the brake pipe 74 by the pressure generated in the master cylinder. At this time, the brake fluid mainly passes through the hole 25 in the cross section of the piston (FIG. 3) in the course of passing through the sensing device (FIG. 2). Through the gap between the cylinder and the piston, at low pressure, pushes the piston itself in a straight line 21 and activates the switch 27 installed at the end of the piston rod 26, thereby automatically warning lights and horns. It works.

When the driver releases the brake pedal, as shown in FIG. 6, the piston of the sudden brake detection device moves back to the straight line 24 of FIG. 2 by the brake oil 62 and the literal spring 23 that return. The terminal contact point 27 of the switch is turned off and the automatically activated warning device (warning light, horn) stops working.

The outlet 25 of brake fluid in the piston of the sensing device (FIG. 2) can make a plurality of outlets 25 of brake fluid according to its diameter. The rapid brake detection device is easy to use in hydraulic brakes, but can be applied to other brake systems such as other air brakes.

Looking at the configuration and principle of the sensing device consisting of a combination of two cylinders (Fig. 1), the sensing device capable of acting as the literal action of the brake pedal 8 at the literal spring position of the brake pedal has a literal spring (81, 82). Instead, or with a shorter literal spring, installed with a sensing device, it can detect a driver's sudden stepping on the pedal to activate a sudden brake and automatically activate a warning light or warning sound.

Sudden brake detection device Referring to the components of FIG. 1, the piston 3 of the pressure generating cylinder 1 connected to the brake pedal 8 and the piston rod 12 has a piston when the driver suddenly presses the brake pedal. Since the movement is in the [9] direction, the pressure increase / decrease (change width) in the pressure generating cylinder 1 suddenly appears large. At this time, the pressure generated in the pressure generating cylinder 1 is transmitted to the sensor cylinder 5 through the pressure medium (air or fluid) inlet and outlet 13. The transmitted pressure moves the piston loader 11 in the [10] direction while pushing the piston 4 in the sensor cylinder 5 to operate the contact terminal of the switch, and the pressure generated in the sensor cylinder 5 is the inlet and outlet. Pressure is circulated to the pressure generating cylinder 1 via 14. In addition, since the pressure is discharged through the pressure medium outlet 15 drilled in the piston 4 during the normal brake operation instead of the rapid brake, the piston 4 of the detector cylinder 5 does not move, and suddenly a large pressure is applied. Only when caught is the piston 4 of the sensing cylinder 5 moved.

When the driver releases the brake pedal, the brake pedal 8 is returned to the original position by the liter spring 2 of the pressure generating cylinder 1 and the brake pedal return spring installed outside the cylinder. Pressure is transmitted through the outlet in the opposite direction, and the pistons 3 and 4 also return to their original positions. At this time, the elasticity of the sensing cylinder cylinder spring 7 also partially acts to reposition the piston 4.

The sensing device consisting of one cylinder and two pistons (FIG. 10) is the smallest and most sensitively actuated brake actuation sensing device. When pressing the brake pedal 8 swiftly and forcefully, the piston 102 is pushed to the right to move the piston 103 to operate the switch 105, a brake actuation detection device that acts as a brake pedal literal spring ( 106 and OFF switch 105 are composed of a spring 107 and an empty space 108 between the piston 102 and the piston 103. The distance between the pistons 102 and 103 was installed in proportion to the movement distance of the brake pedal, and fine air holes were provided at both ends of the cylinder 101 to smoothly flow the air. In normal brake operation, pressure is transmitted through the inlet and outlet 104 of the pressure transmission medium, and when a pressure exceeding the pressure that can be transmitted through the inlet and outlet 104 of the pressure transmission medium acts on the piston 103 by the rapid brake operation. The piston is pushed to the right and activates a switch connected to the warning device.

The switch of the sensing device is configured in parallel with the manual emergency warning light switch currently installed in various automobiles, but it may operate an emergency warning light through a separate relay. And the distance of the switch contact connected to the sensing device can be adjusted according to the state of the spring.

The contact terminal of the switch installed at the end of the sensing device is separated into two and in the first stage, the emergency warning lamp is activated, and in the second stage, the emergency brake is detected more urgently than the first stage, the emergency warning lamp is activated and the horn is automatically operated. Warnings are given to both the front driver and the driver following him.

The emergency brake light switch, emergency warning light and horn connection were connected to the current manual switch in parallel to activate the emergency warning light. However, if necessary, a dedicated relay can be attached and connected directly to a separate warning device.

Depending on the installation position of the sensing device, the position of the switch contact and the liter spring of the sensing device may be changed. When installing the brake pedal liter spring (81,82) position or the combination of the short liter spring and the sensing device, the switch contact can be installed in the direction as shown in FIG. 1, and the sensing device can be installed in a different direction from the brake pedal liter spring. In this case, the sensing device as shown in FIG. 9 may be attached and used. When the brake pedal is pressed, the pressure generating device piston rod moves in the direction of [91], and the piston rod moves in the same direction as [92]. ).

Claims (6)

In the device for detecting a sudden brake during driving of the vehicle, the cylinder 29, the piston 22, the brake to detect when the increase / decrease per unit time (change range) of the pressure generated in the master cylinder (Fig. 5) is large A brake system for a vehicle, characterized in that a sensing device composed of a liquid outlet (25) is attached to a part of a brake system. In a device for detecting a sudden brake while driving a vehicle, a pressure generating portion composed of a cylinder (1), a piston (3), etc. is provided on a part of a brake pedal, and per unit time of pressure generated in the pressure generating cylinder (1). When the increase / decrease width is large, a rapid brake detecting device composed of a cylinder 5, a piston 4, a moving outlet 15 of a pressure transmission medium, and the like is attached to a part of the brake pedal to detect the change. Brake system. In a device for detecting a sudden brake while driving a vehicle, a sensing device comprising one cylinder 101, two pistons 102 and 103, an inlet and outlet 104 of a pressure transmission medium, and the like is installed on a part of a brake pedal. Brake system, characterized in that the sensing device for detecting when the increase and decrease per unit time of the pressure generated in the space 108 is attached to a part of the brake pedal. The brake system according to claim 1, 2, or 3, wherein the brake system with the rapid brake detection device is installed in a motorcycle, a passenger car, a bus, a truck, a trailer, a forklift, heavy equipment, and an industrial vehicle. system. The brake system according to claim 1, 2 or 3, wherein the contact terminal of the switch provided at the end of the sensing device piston rod has a contact terminal composed of one or more and ten or less. In the operation method of the warning device, a sensor and a switch for detecting a sudden brake occurring while driving a vehicle are attached to a part of the brake system, and the driver automatically turns on the warning light as the driver presses the brake suddenly, or Brake system characterized in that the automatic operation of the horn.