KR19980036459A - Auxiliary brake system - Google Patents

Abstract

The present invention relates to an auxiliary brake device for improving the brake performance of a vehicle, the operation switch (SW1) for switching operation according to the rapid brake pedal operation of the vehicle, and the vehicle speed sensor (1) for detecting the traveling speed of the vehicle And, the driving tire locking detection sensor (2) for detecting the locking state of the drive tire when the vehicle is running, the obstacle detection sensor (3) for detecting obstacles in front of the vehicle, and the operation switch (SW1) when the rapid brake pedal operation of the vehicle And an electronic control unit 4 which controls and operates the auxiliary brake system of the vehicle according to the signals sensed by the respective sensors 1, 2 and 3, and the control of the electronic control unit 4 In accordance with the solenoid valve (5) for opening and closing operation according to the operation, the engine 6 for generating a vacuum pressure through the vacuum line during the opening and closing operation of the solenoid valve (5), and the vacuum pressure supplied from the engine (6)The first and second rods 8 and 9 that linearly move while rotating in accordance with the actuator 7 and the actuator 7 are driven, and the first and second rods 8 and 9, respectively. A turnbuckle 10 connected to the guide bracket, a guide bracket 11 sliding to guide the linear movement of the second rod 9 while being mounted on the bottom surface of the vehicle, and a linear movement of the second rod 9. Accordingly, it is characterized in that the auxiliary brake member 12 is made of a rubber material for generating a tension to generate a friction force in contact with the road surface to perform a secondary auxiliary brake function.

Description

Auxiliary brake system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake of a vehicle. More particularly, the present invention relates to a support brake device for improving a brake performance of a vehicle by operating an auxiliary brake simultaneously with a sudden brake operation of a vehicle being driven.

In general, if a vehicle protrudes suddenly in front of the vehicle at night or suddenly stops in front of the vehicle, the driver brakes the vehicle in a hurry, but when the vehicle's driving speed is high, the braking distance becomes longer. Since the operation effect of the brake is halved, there is a problem that the brake performance of the vehicle is greatly reduced, such as a collision accident with the front vehicle.

Therefore, in order to solve the above problems, the present invention provides an auxiliary brake system for generating a frictional force to perform an auxiliary brake function by contacting the ground such as a road at the same time as the rapid brake is operated during night driving of the vehicle. The purpose of this is to improve the brake performance of the vehicle, thereby preventing collisions, tipping and rollover accidents.

1 is a configuration diagram showing the structure of the auxiliary brake device of the present invention vehicle.

Figure 2 is a bottom view showing the bottom shape of the auxiliary brake member in the auxiliary brake device of the present invention vehicle.

Figure 3 is a side cross-sectional view of the vehicle showing the mounting state of the auxiliary brake device of the present invention.

Explanation of symbols for main parts of the drawings

1: vehicle speed sensor, 2: driving wheel locking sensor, 3: obstacle sensor, 4: electronic control unit, 5: solenoid valve, 6: engine, 7: actuator, 8,9: first and second rod , 10: turnbuckle, 11: guide bracket, 12: auxiliary brake member, 12a: friction groove, 12b: tightening groove, SW1: operation switch

The auxiliary brake device of the present invention for achieving the above object, the operation switch for switching operation according to the rapid brake pedal operation of the vehicle, the vehicle speed sensor for detecting the driving speed of the vehicle, and detects the locking state of the driving tire when the vehicle is running A driving tire locking detection sensor, an obstacle detection sensor detecting an obstacle in front of the vehicle, and an auxiliary brake system of the vehicle according to a signal detected by the operation switch and each sensor when the rapid brake pedal is activated. An electronic control unit (ECU) for controlling operation, a solenoid valve for opening and closing operation according to the control operation of the electronic control unit, an engine for generating vacuum pressure through a vacuum line during opening and closing operation of the solenoid valve, and supplying from the engine Actuator driven by the vacuum pressure to be rotated according to the drive of the actuator First and second rods that linearly move while driving, a turnbuckle connecting the first and second rods, and sliding to guide the linear movement of the second rod while being mounted on the floor of the vehicle The guide bracket is operated, and the auxiliary brake member made of rubber material generates tension to contact the road surface according to the linear motion of the second rod to generate a frictional force to perform a secondary auxiliary brake function.

According to another aspect, the auxiliary brake member has a friction groove which is processed in the same shape as the groove of the tire so as to improve the frictional force with the road surface, and the central part has a bolt to support the tension generated when contacting the road surface. The fastening groove which can be penetrated is characterized in that it is processed.

According to the above configuration, when an object suddenly protrudes from the front of the vehicle at night or suddenly stops when the vehicle in front of the vehicle suddenly stops, if the driver presses the brake pedal in a hurry, the operation switch and each sensor may be operated according to the operation of the brake pedal. After sensing the driving state of the current vehicle and the operation of the brakes and the state of the obstacle, it is outputted to the electronic control unit. The electronic control unit protrudes each auxiliary brake member mounted on the outer bottom of the vehicle and contacts the road surface. At the same time, a control operation is performed to generate a frictional force, and each of the protruding auxiliary brake members performs an auxiliary brake function such as secondly braking again the braked vehicle according to the primary brake operation to secure the braking distance of the vehicle. Sikkim, as well as vehicle collisions, tipping and overturning Which will thereby avoid the risk of high.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3.

1 is a configuration diagram showing the structure of the auxiliary brake device of the present invention, Figure 2 is a bottom view showing the bottom shape of the auxiliary brake member in the auxiliary brake device of the present invention, Figure 3 is a mounting state of the auxiliary brake device of the present invention. Side sectional view of the vehicle.

As shown in Figures 1 to 3, the operation switch SW1 for switching according to the operation of the sudden brake pedal, the vehicle speed sensor for detecting the driving speed of the vehicle when the rapid brake pedal is operated at 40km / h or more ( 1), the driving tire locking detection sensor (2) for detecting the locking state of the driving tire when the sudden brake pedal is operated, the obstacle detecting sensor (3) for detecting obstacles in front of the vehicle when the sudden brake pedal is operated, Control operation in the electronic control unit 4 so as to operate the auxiliary brake system of the vehicle according to the signal sensed by the operation switch SW1 and the respective sensors 1, 2 and 3 In accordance with the control operation of the electronic control unit 4, the solenoid valve 5 is opened and closed to supply the vacuum pressure supplied from the engine 6 to the actuator 7 through the vacuum line. In addition, the first and second rods 8 and 9 that are linearly driven while rotating in accordance with the drive of the actuator 7 are connected by the turnbuckle 10, and the linear movement of the second rod 9 is performed. The guide bracket 11 for guiding is mounted on the bottom surface of the vehicle so as to slide on the second rod 9, and generates a frictional force while contacting the road surface according to the linear movement of the second rod 9 to generate a secondary force. The auxiliary brake members 12 made of rubber are mounted on respective parts of the vehicle tire to generate tension to perform an auxiliary brake function. The frictional force with the road surface is provided on the bottom surface of the auxiliary brake members 12. Friction grooves 12a, which are the same as the grooves of the tire, are processed to improve the pressure, and a fastening groove 12b, through which bolts can be penetrated, is processed at the center to support tension generated when contacting the road surface. It is a structure.

According to the configuration of the embodiment as described above, if the vehicle suddenly protrudes from the front when the vehicle is driving at night or suddenly stops in front of the adjacent vehicle, if the driver presses the brake pedal in a hurry, the operation switch at the same time as the operation of the brake pedal The switching operation SW1 causes the electronic control unit 4 to output an arbitrary signal indicating that the vehicle is in a sudden brake state. In addition, the vehicle speed sensor 1 detects the traveling speed of the vehicle only at 40 km / h or more according to the operation of the sudden brake pedal, and the driving tire sensor 2 detects the locking state of the vehicle tire. The obstacle detecting sensor 3 detects a state of a front vehicle or a front obstacle, and the signals detected by the respective sensors 1, 2, 3 are output to the electronic control unit 4.

At this time, the electronic control unit 4 has a braking distance range in consideration of the traveling speed of the vehicle and the braking distance according to the locking state of the vehicle tire and the state of the front obstacle detected by each sensor (1) (2) (3). If is abruptly short, control action is performed to drive auxiliary brake system. That is, the solenoid valve 5 is opened in accordance with the control operation of the electronic control unit 4, and the vacuum pressure generated in the engine 6 is opened in response to the opening operation of the solenoid valve 5. It is supplied to the actuator (7) through.

In the actuator 7, the first rod and the second rod 8 and 9 connected by the turnbuckle are rotated and linearly moved according to the supplied vacuum pressure. The linear motion of (9) is smoothly made by the guide bracket 11 fastened on the second rod 9 while being mounted on the bottom surface of the vehicle.

At this time, the auxiliary brake member 12 of rubber material, which is connected to the end of the second rod 9 and installed at a position close to the vehicle tire, protrudes according to the linear movement of the second rod 9, By generating friction force in contact with the vehicle, the braking distance of the vehicle or the front obstacle is secured as the vehicle braked by the primary brake acts again by the secondary brake member 12. This will prevent the risk of collision, tipping and rollover.

That is, since the friction groove 12a is machined on the bottom surface of the auxiliary brake member 12 in the same shape as the groove shape of the tire, and the fastening groove 12b is machined to allow the bolt to penetrate through the central brake, the auxiliary brake When the member 12 comes into contact with the road surface, the braking force of the vehicle is improved by the friction groove 12a, and a constant tension is generated in the auxiliary brake member 12 of rubber material by the bolt penetrated through the coupling groove 12b. As it is supported, the auxiliary brake member 12 smoothly performs the secondary brake function, thereby greatly improving the braking performance of the vehicle.

As described above, the present invention is equipped with an auxiliary brake system for generating a frictional force to perform an auxiliary brake function in contact with the ground, such as a road at the same time when the vehicle is driving at night, while the vehicle is mounted on the outer floor of the vehicle In addition, by improving the brake performance of the vehicle, there is an effect to prevent the collision, tilting and rollover in advance.

Claims (2)

An operation switch that switches according to the rapid brake pedal operation of the vehicle, a vehicle speed sensor for detecting the driving speed of the vehicle, a driving tire locking sensor for detecting the locking state of the driving tire when the vehicle is traveling, and an obstacle in front of the vehicle An obstacle detecting sensor for detecting a sensor, an electronic control unit (ECU) which controls and controls an auxiliary brake system of the vehicle according to a signal sensed by the operation switch and each sensor when the sudden brake pedal of the vehicle is operated; A solenoid valve for opening and closing according to the control operation of the electronic control unit, an engine for generating vacuum pressure through a vacuum line during the opening and closing operation of the solenoid valve, an actuator for driving according to the vacuum pressure supplied from the engine, A first rod and a second rod linearly rotating while rotating according to the driving of the actuator; A turnbuckle connecting the first and second rods, a guide bracket sliding to guide the linear movement of the second rod while being mounted on the bottom surface of the vehicle, and according to the linear movement of the second rod. The auxiliary brake device, characterized in that the auxiliary brake member made of a rubber material for generating a tension to generate a friction force in contact with the road surface to perform a secondary auxiliary brake function. According to claim 1, The auxiliary brake member, the bottom surface is processed with a friction groove, the same as the groove shape of the tire to improve the frictional force with the road surface, the central portion bolts to support the tension generated when the contact with the road surface An auxiliary brake device, characterized in that the fastening groove which can be penetrated is processed.