KR100401884B1 - break pedal structure of break system for using wire - Google Patents

Abstract

The present invention relates to a brake pedal operation-enhancing device in a braking system using a wire, the brake pedal (11) which is elastically rotatable to the pedal mounting bracket (21) and the operating state of the brake pedal (11) The brake pedal sensor 12 for detecting, the control unit 13 for receiving the signal from the brake pedal sensor 12 to determine the operating state of the brake pedal 1, and the control of the control unit 13 The actuator 14 is configured to selectively supply the hydraulic pressure to the brake body 15 provided at the front wheel and the rear wheel to generate a braking force, and both ends thereof are fixed to the brake pedal 11 and the pedal mounting bracket 21, respectively. It is installed so as to provide an operation feeling imparting means 30 to give a feeling of operation divided into an idle section, a jump-in section and a boosting section in accordance with the operation of the brake pedal (11). The idle section, the jump-in section and the boosting section generated by the hydraulic braking device when the driver operates the brake pedal 11. Since the operation feeling is given, unnecessary sudden braking phenomenon is drastically reduced during driving, and thus, it is possible to prevent the occurrence of safety accidents such as crash accidents in advance, and also to improve the riding comfort and reduce the fatigue of the driver and passengers. It is to help safe operation.

Description

Break pedal structure improvement device for braking system using wire

The present invention relates to a brake pedal operation improvement device in a braking system using a wire which can improve the operation feeling of a brake pedal.

In general, a brake system is a device that generates a braking force on a driving vehicle so that the vehicle does not move by itself, and is normally operated by hydraulic pressure generated / supplied from the master cylinder according to the operation of the brake pedal.

Here, as shown in FIG. 1, the brake device operated by the hydraulic pressure amplifies or enlarges the brake pedal 1 to be stepped on by the driver to generate the braking force and the stepping force of the brake pedal 1. The hydraulic power supply device 2, the master cylinder 3 for converting the stepping force of the brake pedal 1 into hydraulic pressure, and the hydraulic pressure supplied from the master cylinder 3 to generate a substantial braking force. And the brake body 4 or the like.

Therefore, when the driver presses the brake pedal 1, the pedaling force is converted into hydraulic pressure by the master cylinder 3 and brakes through the brake pipe 5, the oil distributor 6, the brake hose 7, and the like. The hydraulic pressure supplied to the main body 4 is applied to the brake main body 4 by pressing the brake shoe or the brake pad with a drum or a disk to generate a braking force due to the frictional force, thereby stopping the vehicle being driven.

On the other hand, when the driver operates the brake pedal 1, the operation diagram of the brake pedal 1 is as shown in Fig. 2 and the operation feeling at that time can be felt by the driver by the hydraulic system.

That is, the brake pedal operation diagram shown in FIG. 2 is largely divided into an idle section, a jump-in section, and a boosting section. The idle section includes an operator's brake pedal (1). ) Is a section (0 ~ A point) from the start of the operation of the power-up device (2) to the operation time is a section where the stepping force is increased by a simple spring force, the jump-in section is an idle section At the end, the operating pressure of the braking device is rapidly increased (point A to point B) without increasing the operating force of the brake pedal 1, and the boosting section is after the jump in section and the booster 2 It is a section (B point ~) that generates a large braking force even with a small step force by applying the vacuum pressure at the operating point.

However, the conventional braking device for generating braking force using hydraulic pressure, as described above, expensive equipment such as the power booster (2) and the master cylinder (3) is used, it is not only expensive to construct the braking device, but also the hydraulic line There was also a problem that a lot of space is consumed for the configuration.

In order to solve this problem, instead of the hydraulic system connecting the brake body from the brake pedal, a next generation braking device using an electronically actuated wire is being developed.

That is, as shown in FIG. 3, when the driver applies the brake pedal 11 to the brake pedal 11 to operate the brake pedal 11, the brake pedal 11 may be operated by the brake pedal sensor. The signal is transmitted to the control unit 13 as detected by 12), and the control unit 13 is provided on the front wheel and the rear wheel by operating the actuator 14 by the signal transmitted from the brake pedal sensor 12. By supplying hydraulic pressure to the brake main body 15, a braking force is generated.

In this way, if a braking device using an electronically actuated wire is used instead of a mechanically operated hydraulic system, the expensive equipment used in the hydraulic braking device (such as a power supply device and a master cylinder) is not used. Although the cost of constructing the engine is greatly reduced and the hydraulic line is not constituted, the free space of the vehicle can be utilized for other purposes as well as the response can be greatly improved. There is still a problem that can not feel the operational feeling of) to cause a safety accident while driving.

That is, in the hydraulic braking device, the feeling of operation of the brake pedal 1 can be felt by the driver by the hydraulic system, thereby preventing unnecessary sudden braking. However, in the braking device using the conventional wire as described above, the feeling of operation is the same as in the hydraulic braking device. The driver can not feel the sudden braking may occur frequently when the driver's carelessness of course there was a problem causing a safety accident such as a collision accident.

Accordingly, the present invention has been made to solve the above problems, the brake pedal is installed to be resiliently pivotable to the pedal mounting bracket, it is installed so that both ends of the operation feeling applying means is fixed to the brake pedal and the pedal mounting bracket respectively. In addition, the operation of the brake pedal used in the hydraulic braking device can be felt the same in the brake pedal of the braking device using the wire, thereby preventing unnecessary sudden braking of the vehicle and thereby preventing a safety accident such as a collision accident. In addition, it is an object of the present invention to provide a brake pedal operation improvement device in a braking system using a wire that can improve the riding comfort.

Brake pedal operation improvement device of the present invention for achieving the above object, the brake pedal is installed resiliently rotatably on the pedal mounting bracket, the brake pedal sensor for detecting the operating state of the brake pedal, and the brake pedal An actuator configured to generate a braking force by supplying hydraulic pressure to a brake body provided at the front wheel and the rear wheel while being selectively driven by the control of the control unit and receiving a sensor signal to determine an operating state of the brake pedal; And, both ends are installed so as to be fixed to the brake pedal and the pedal mounting bracket, respectively, characterized in that it comprises a sense of operation imparting means to give a sense of operation divided into an idle section, a jump-in section and a boosting section according to the operation of the brake pedal. It is done.

1 is a perspective view for explaining a hydraulic braking device generally used;

Figure 2 is a schematic graph for explaining the operation diagram of the brake pedal used in the hydraulic braking device,

3 is a schematic configuration diagram illustrating a conventional braking device using a wire;

4 is a schematic configuration diagram of an operation improvement device according to the present invention.

<Description of Symbols for Main Parts of Drawings>

11-Brake Pedal 12-Brake Pedal Sensor

13-Control Unit 14-Actuator

15-Brake Body 21-Pedal Mounting Bracket

30-Imparting feeling 31-Case

31a-Jamming 32-Operating Rod

33-Movable bracket 33a-Release prevention protrusion

34-Passive Bracket 35-First Return Spring

36-2nd return spring 37-Rubber spring member

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a schematic configuration diagram of the operation improvement device according to the present invention, will be described with the same reference numerals to the same parts as the conventional structure.

As shown in FIG. 4, the brake pedal manipulation-improving device in a braking system using a wire according to the present invention includes a brake pedal 11 that is elastically rotatable to the pedal mounting bracket 21 and the brake pedal ( 11, a brake pedal sensor 12 for detecting an operating state of the brake, a control unit 13 for determining the operating state of the brake pedal 1 by receiving the signal of the brake pedal sensor 12, and the control unit ( The actuator 14 is selectively driven by the control of 13) to supply hydraulic pressure to the brake main body 15 provided at the front wheel and the rear wheel to generate a braking force, and both ends of the brake pedal 11 and the pedal mounting bracket. Each of them is installed to be fixed by using the 21, and the operation feeling divided into an idle section, a jump population section and a boosting section according to the operation of the brake pedal 11 is provided to the driver. It is to be composed of the operation feeling imparting means (30) to open.

Here, the idle section, the jump-in section and the boosting section provided by the manipulation-sensing means 30 during operation of the brake pedal 11 are as described above with reference to FIG. 2. As the feeling of operation of the brake pedal 1 used in the hydraulic braking device is the same, the idle section is a section from the time when the driver starts to operate the brake pedal 1 to the time when the power booster 2 is operated ( 0 to A point) is a section for compensating a section in which the stepping force is increased by a simple spring force, and the jump-in section is a braking device without increasing the operating force of the brake pedal 1 at the end of the idle section. Is a section for compensating a section (A point ~ B point) in which the working pressure is sharply increased, and the boosting section is after the jump in section, and the vacuum pressure is applied at the point where the power supply device 2 is operated. Big stuff with little effort A section for compensating the interval (B-point) for generating a force.

On the other hand, the operation feeling applying means 30, the case 31 is formed in the shape of a pipe opening one end is fixed to the pedal mounting bracket 21 and the case (in accordance with the operation of the brake pedal 11) 11) the movable bracket 33 is installed so that one end is fixed to the brake pedal 11 via the operation rod 32 so that the inside of the case is linearly reciprocated, and the other end is prevented from being separated from the inside of the case 31. And a driven bracket 34 installed to move linearly in the case 31 while being selectively in contact with the movable bracket 33 according to the operation of the brake pedal 11, and both ends of the movable bracket 33 and the movable bracket 33. It is installed to be elastically supported on the driven bracket 34 and imparts a feeling of operation corresponding to the idle section when the brake pedal 11 is operated, and moved inside the case 31 according to the operation of the brake pedal 11. The first return spring 35 to impart a restoring force to the movable bracket 33, and both ends are installed to be elastically supported on the inner side of the driven bracket 34 and the case 31, the operation of the brake pedal 11 A second return spring 36 to impart a feeling of operation corresponding to the time jump population and to impart a restoring force to the driven bracket 34 moved inwardly of the case 31 according to the operation of the brake pedal 11; It is installed to be fixed to one surface of the driven bracket 34 facing the inner side of the case 31 and the tip is in contact with the inner surface of the case 31 in accordance with the movement of the driven bracket 34 corresponding to the boosting section The rubber spring member 37 is configured to impart a feeling of operation.

In addition, the spring constant value k ₂ of the second return spring 36 is formed to have a constant value larger than the spring constant value k ₁ of the first return spring 35 by a predetermined value, the magnitude of which is The ratio of is usually formed to have a value of about 20 percent (%) larger than the spring constant value k ₁ of the first return spring 35.

In addition, one end of the case 31 connected to the movable bracket 33 is integrally formed along the edge of the engaging projection 31a protruding at a predetermined length, and the movable bracket inserted into the case 31. One end of the (33) has a structure in which the separation preventing projection (33a) is integrally formed along the rim surface to prevent the detachment of the movable bracket 33 while selectively contacting the engaging projection (31a).

Therefore, in the braking system using the wires, if both ends of the manipulation-sensing means 30 according to the present invention are installed to be fixed to the brake pedal 11 and the pedal mounting bracket 21, respectively, the driver may operate the brake pedal 11. When operating the first first return spring (35) by the elastic compression force of the hydraulic braking device corresponding to the idle (idle) section of the (idle) is given a sense of operation, after which the driver continues to operate the brake pedal 11 By the elastic compression force of the second return spring 36, a feeling of operation corresponding to the jump-in section of the hydraulic braking device is provided.

When the second return spring 36 is elastically compressed and the rubber spring 37 coupled to the driven bracket 34 is in contact with the inner surface of the keas 31 to cause elastic deformation, the driver brakes hydraulically. The operation feeling corresponding to the boosting section of the device is given.

As such, when the driver manipulates the brake pedal 11 by the manipulation-sensing means 30 according to the present invention, an idle section, a jump-in section and a boosting section generated by the hydraulic braking device are boosted. When a feeling of operation corresponding to a section is given, it is possible to drastically reduce unnecessary sudden braking while driving, thereby preventing the occurrence of a safety accident such as a collision accident in advance, and also improving driving comfort while driving. And it is possible to reduce the fatigue of the occupant can promote safe driving.

As described above, according to the present invention, when the driver operates the brake pedal, it corresponds to an idle section, a jump-in section, and a boosting section generated by the hydraulic braking device by the operation-sensing means. Since the operation feeling is given, the unnecessary sudden braking phenomenon is drastically reduced while driving, thereby preventing the occurrence of a safety accident such as a collision accident in advance, and also improving the riding comfort and reducing the fatigue of the driver and the occupant. There is an effect that can help the operation.

Claims (4)

A brake pedal 11 elastically rotatable to the pedal mounting bracket 21, a brake pedal sensor 12 for detecting an operating state of the brake pedal 11, and a signal of the brake pedal sensor 12 Control unit 13 for determining the operating state of the brake pedal (1) receives the received and selectively driven by the control of the control unit 13 to supply the hydraulic pressure to the brake body (15) provided in the front and rear wheels Actuator 14 to generate a braking force, and both ends are installed to be fixed using the brake pedal 11 and the pedal mounting bracket 21, respectively, the idle section and the jump according to the operation of the brake pedal 11 Improvement of brake pedal operation in a braking system using a wire composed of operation-sensing means 30 to give the driver a feeling of operation divided into population and boosting sections Value. The method of claim 1, wherein the operation-sensing means 30 is formed in the shape of a pipe opening one end of the case 31 is installed to be fixed to the pedal mounting bracket 21, the operation of the brake pedal 11 In order to move the inside of the case 11 linearly reciprocating one end is installed to be fixed to the brake pedal 11 via the operating rod 32 while the other end is installed to prevent the departure from the inside of the case 31 A bracket 33 and a driven bracket 34 installed to move linearly in the case 31 while selectively contacting the movable bracket 33 according to the operation of the brake pedal 11, and both ends of the movable bracket. It is installed so as to be elastically supported on the 33 and the driven bracket (34) and gives a feeling of operation corresponding to the idle section during the operation of the brake pedal 11, the inner side of the case 31 in accordance with the operation of the brake pedal (11). The first return spring 35 to impart a restoring force to the movable bracket 33 moved to and the both ends are installed to be elastically supported on one side of the driven bracket 34 and the case 31 and the brake pedal 11 Second return spring 36 to impart a feeling of operation corresponding to the jump in the section during the operation and to impart a restoring force to the driven bracket 34 moved inwardly of the case 31 according to the operation of the brake pedal 11. And, it is installed to be fixed to one surface of the driven bracket 34 facing the inner side of the case 31, the tip is in contact with the inner surface of the case 31 in accordance with the movement of the driven bracket 34 boosting section Brake pedal operation improvement device in a braking system using a wire, characterized in that consisting of a rubber spring member 37 to give a feeling of operation corresponding to. The spring constant value k ₂ of the second return spring 36 is about 20 percent (%) greater than the spring constant value k ₁ of the first return spring 35. Brake pedal operation improvement device in a braking system using a wire, characterized in that it is formed to have. The method of claim 2, wherein one end of the case (31) connected to the movable bracket (33) is formed integrally along the rim surface protruding by a predetermined length, the inner side of the case (31) One end of the inserted movable bracket 33 is selectively contacted with the engaging projection 31a to prevent the departure of the movable bracket 33 to prevent the separation prevention projection 33a is formed integrally along the rim surface. Brake pedal operation improvement device in a braking system using a wire.