WO2011031001A1 - Dispositif de freinage de véhicule - Google Patents

Dispositif de freinage de véhicule Download PDF

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Publication number
WO2011031001A1
WO2011031001A1 PCT/KR2010/003989 KR2010003989W WO2011031001A1 WO 2011031001 A1 WO2011031001 A1 WO 2011031001A1 KR 2010003989 W KR2010003989 W KR 2010003989W WO 2011031001 A1 WO2011031001 A1 WO 2011031001A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
braking
master cylinder
piston
brake pedal
Prior art date
Application number
PCT/KR2010/003989
Other languages
English (en)
Korean (ko)
Inventor
전원주
Original Assignee
Jeon Won Joo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jeon Won Joo filed Critical Jeon Won Joo
Publication of WO2011031001A1 publication Critical patent/WO2011031001A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem booster units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
    • B60T11/203—Side-by-side configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves

Definitions

  • the present invention relates to a vehicle braking device, and more particularly, to a vehicle braking device that can maintain a safe and improved braking property.
  • a brake device mounted on a vehicle is largely divided into a main brake used for decelerating and stopping the vehicle while driving and a parking brake for keeping the vehicle parked.
  • the main brakes are classified into mechanical, hydraulic and pneumatic types according to the mechanism for transmitting the pressing force generated when the user presses the pedal to each wheel.
  • the double hydraulic brake is most widely used due to the advantage that the braking force is equally transmitted to all the wheels so that the friction loss is low and the operating force can be reduced.
  • the hydraulic brake is a direct type that directly transmits the pressing force generated when the user presses the brake pedal to each wheel, and a power that delivers the pressing force of the pedal to each wheel using negative pressure or air pressure by vacuum.
  • the double-powered brake system can exert a large braking force even with a relatively small force, and its adoption has become commonplace in recent years.
  • 1 is an exemplary view showing a conventional hydraulic brake device.
  • the conventional hydraulic brake device has a structure in which all of the lines 171, 172, 173, and 174 which transfer hydraulic pressure to the four wheel brake discs 191, 192, 193, and 194 of the vehicle are connected to a port 160 connected to one hydraulic pump 150. Achieved.
  • the technical problem to be achieved by the present invention is to provide a braking device for a vehicle that can maintain a safe and improved braking properties.
  • the present invention provides a braking pedal for generating a pressing force; A booster for causing the pressure applied from the brake pedal to be doubled, wherein the doubled pressure is branched and transmitted; A plurality of master cylinders partitioned in parallel with each other so that braking hydraulic pressure is generated using the doubled and branched pressures input from the power supply device; And a circuit unit connected to each of the master cylinders to guide hydraulic pressure to a corresponding braking unit of the wheel.
  • the master cylinder is provided in pairs to provide independent hydraulic pressure to the braking unit of the front wheels and the braking unit of the rear wheels, respectively, wherein each circuit portion is connected to a plurality of ports of the master cylinder, respectively It is preferred to include the lines. And, the master cylinder is preferably provided with a plurality of corresponding to provide independent hydraulic pressure to each braking unit.
  • the power unit is connected to the brake pedal, the piston rod for opening and closing the standby port while moving by the pressing force of the brake pedal, and the central portion is connected to the main rod provided in front of the piston rod from the main rod A connector for doubling the delivered pressure and branching and guiding each of the master cylinders; and a plurality of push rods provided at one end of the connector to branch and transfer the doubling pressure to each corresponding master cylinder. Is preferred.
  • the pistons of the respective master cylinders are respectively connected to the corresponding push rods, and preferably moved by the operating distance of the main rods, respectively.
  • the power supply device is provided inside the vacuum chamber housing and divided into a diaphragm for dividing the vacuum space and the atmospheric pressure space, the diaphragm is provided through the diaphragm, and the inner side selectively forms a vacuum and atmospheric pressure state, and increases as the atmospheric pressure space increases
  • It further comprises an adjustment housing which cooperates with the diaphragm, wherein the piston rod is provided inside the adjustment housing, the main rod is preferably provided in front of the adjustment housing.
  • the connector is connected to the end of the main rod constituting the power supply device, the first pressure rod and the second push rod are provided at both ends of the connector, respectively, the pressure transmitted from the main rod is the first of the same size
  • the pressure and the second pressure may be transmitted separately.
  • the first master cylinder and the second master cylinder is provided in parallel, the first piston of the first master cylinder is connected to the first push rod, the second piston of the second master cylinder is connected to the second push rod, respectively
  • the independent pressure of each master cylinder is equally possible by the pressure divided by.
  • 1 is an exemplary view showing a conventional hydraulic brake device.
  • FIG. 2 is a block diagram showing a configuration of a vehicle braking device according to an embodiment of the present invention.
  • Figure 3 is a plan view showing a connection state of the master cylinder and the power unit of the vehicle braking device according to an embodiment of the present invention.
  • Figure 4 is a front exemplary view showing a connection state of the master cylinder and the power unit of the vehicle braking device according to an embodiment of the present invention.
  • 5 and 6 are exemplary views showing the operating state of the power boosting device of the vehicle braking device according to an embodiment of the present invention.
  • FIG. 7 and 8 are exemplary views showing the operating state of the master cylinder of the vehicle braking device according to an embodiment of the present invention.
  • Figure 2 is a block diagram showing the configuration of a vehicle braking device according to an embodiment of the present invention
  • Figure 3 is a plan view showing a connection state of the master cylinder and the power unit of the vehicle braking device according to an embodiment of the present invention
  • 4 is a front view illustrating a connection state of a master cylinder and a power booster of a vehicle braking apparatus according to an embodiment of the present invention
  • FIGS. 5 and 6 are views of a vehicle braking apparatus according to an embodiment of the present invention.
  • 7 and 8 are exemplary views showing the operating state of the master cylinder of the vehicle braking device according to an embodiment of the present invention.
  • the vehicle brake device includes a brake pedal 10, a power booster 20, a first master cylinder 50, a second master cylinder 60, a first circuit part 70, and a second circuit part. It is preferable to include (80).
  • the braking pedal 10 generates a pressing force
  • the power booster 20 preferably distributes the pressing force flowing from the braking pedal 10 to the first pressure and the second pressure.
  • the divided first pressure is transmitted to the first master cylinder 50, and the second pressure is transmitted to the second master cylinder 60.
  • the first master cylinder 50 supplies the braking hydraulic pressure generated by using the first pressure through the first circuit unit 70, and the first circuit unit 70 supplies hydraulic pressure to the braking unit of some wheels.
  • the second master cylinder 60 supplies the braking hydraulic pressure generated by using the second pressure through the second circuit portion 80, the second circuit portion 80 is hydraulic pressure to the braking unit of the remaining wheels It is preferable to guide.
  • the booster 20 includes a vacuum chamber housing 21, a diaphragm 22, an adjustment housing 30, a piston rod 40, a connector 25, and a first push.
  • the rod 26 and the second push rod 27 may be configured.
  • the vacuum chamber housing 21 forms the outer shape of the power unit 20.
  • the diaphragm 22 may be provided inside the vacuum chamber housing 21 to partition the inside of the vacuum chamber housing 21.
  • the vacuum chamber housing 21 may be partitioned by the diaphragm 22.
  • the front space of can be in a vacuum state.
  • the center of the diaphragm 22 may be provided with the adjustment housing 30, the adjustment housing 30 is provided to be movable in the front and rear direction of the vacuum chamber housing 21.
  • a first return spring 24 may be provided at an outer side of the main rod 38 provided in front of the adjustment housing 30 to surround the main rod 38.
  • the first return spring 24 may be a coil spring, and the coil spring may be provided such that one end thereof contacts the diaphragm 22 and the other end thereof contacts the front inner surface of the vacuum chamber housing 21. . In this way, the first return spring 24 supports the diaphragm 22 in the rear of the vacuum chamber housing 21, and in this way, the adjustment housing 30 is also supported in the rear.
  • the adjustment housing 30 extends outwardly through the rear portion of the vacuum chamber housing 21.
  • the adjusting housing 30 is preferably formed through the vacuum port 45, one side of the vacuum port 45 is connected to the front of the diaphragm 22, the other side of the rear of the diaphragm 22 Is preferably connected to.
  • the front space inside the vacuum chamber housing 21 and the rear space inside the vacuum chamber housing 21 may be connected through the vacuum port 45, so that the rear space may also be in a state in which the vacuum is acting.
  • the piston rod 40 is provided inside the adjustment housing 30.
  • one end of the piston rod 40 may be provided to extend to the outside of the adjustment housing 30, it may be provided to linearly move in the forward and rearward direction from the inside of the adjustment housing (30).
  • the second return spring 35 may be provided inside the adjustment housing 30.
  • the second return spring 35 is provided to surround the piston rod 40, one end is in close contact with the first fixed end 31 protruding from the piston rod 40 and the other end is adjusted It may be in close contact with the engaging portion 33 protruding from the inside of the housing (30).
  • the second return spring 35 elastically supports the piston rod 40 to the outside of the adjustment housing 30.
  • a poppet valve 42 may be provided between the head 41 of the piston rod 40 and the second return spring 35.
  • the poppet valve 42 may be located in a groove 34 formed in the adjustment housing 30.
  • the outer circumferential surface of the poppet valve 42 is in close contact with the inner circumferential surface of the groove 34, and the inner circumferential surface of the poppet valve 42 has a predetermined distance from the outer circumferential surface of the piston rod 40.
  • the poppet valve 42 has one end in contact with the second fixed end 32 formed on the piston rod 40 and the other end is in contact with the elastic spring 36 in contact with the rear side of the poppet valve 42.
  • the piston rod 40 can be elastically supported in the forward direction.
  • the elastic force of the elastic spring 36 is preferably smaller than the elastic force of the second return spring (35).
  • the poppet valve (40) is elastically supported backward by the elastic force of the second return spring (35), and the front surface is pressed by the head (41) of the piston rod (40). 42 is in close contact with the rear surface of the groove 34.
  • the internal space of the adjustment housing 30, which is composed of the poppet valve 42 and the inner surface of the adjustment housing 30, may be partitioned from the space in the vacuum state, in which case the adjustment housing 30 It is preferable that the internal space of) is at atmospheric pressure.
  • one end of the piston rod 40 extending out of the adjustment housing 30 may be connected to the brake pedal 10.
  • the brake pedal 10 may be hinge-rotated forward when one end is hinged and the driver applies a pressing force to the other end.
  • the brake pedal 10 When the driver applies the pressing force to the brake pedal 10, as shown in FIG. 5B, the brake pedal 10 is rotated forward while pushing the piston rod 40 to push the piston.
  • the rod 40 can move linearly forward.
  • a negative pressure (vacuum pressure) is formed in front of the diaphragm 22, and an atmospheric pressure is formed in the rear of the diaphragm 22, and the diaphragm 22 is moved forward by the pressure difference before and after the diaphragm 22.
  • the first return spring 24 is compressed while being pushed to.
  • the adjustment housing 30 moves forward, and pressure is transmitted through the main rod 38 provided in front of the adjustment housing 30. .
  • the connector 25 is preferably provided at the front end of the main rod 38.
  • the main rod 38 is preferably connected to the central portion of the connector 25.
  • the connector 25 may be provided horizontally at a right angle with the main rod 38.
  • the first push rod 26 and the second push rod 27 may extend through the front part of the vacuum chamber housing 21 to the outside. Accordingly, the pressure transmitted from the main rod 38 is divided into a first pressure and a second pressure by the connector 25 and transferred to the first push rod 26 and the second push rod 27, respectively. It becomes possible. At this time, the first pressure and the second pressure is preferably the same size.
  • first push rod 26 extended as described above is connected to the first piston 52 of the first master cylinder 50, and the second push rod 27 is connected to the second master cylinder 60. It is preferable to be connected to the second piston (62) of.
  • the first pressure is transmitted to the first piston 52, and the second pressure is transmitted to the second piston 62.
  • the first master cylinder 50 may include a cylinder 51, a first piston 52, a third piston 53, a first port 57, and a third port 58.
  • the cylinder 51 forms the body of the first master cylinder 50, and the brake oil is filled therein.
  • first piston 52 and the third piston 53 may be provided inside the cylinder 51, respectively.
  • a first spring 54 may be provided between the first piston 52 and the third piston 53, and a third spring 55 is provided in front of the third piston 53. Can be.
  • the third spring 55 may support the third piston 53 rearwardly, and the first spring 54 may support the first piston 52 rearwardly.
  • the first piston 52 is moved by a distance corresponding to the moving distance of the main rod 38.
  • the first spring 54 is compressed and the third piston 53 is pushed forward to move the third piston 53 forward.
  • first port 57 may be formed at the central portion of the cylinder 51
  • third port 58 may be formed at the front portion of the cylinder 51.
  • first port 57 and the third port 58 is preferably connected to the cylinder 51, respectively, accordingly, the brake oil is the first port 57 and the third port ( Through 58).
  • the first circuit unit 70 may be connected to the first port 57 and the third port 58.
  • the first circuit unit 70 may include a first line 71 and a third line 73.
  • the first line 71 is preferably connected to the first port 57, and guides the brake oil discharged through the first port 57 to the first wheel 91 to the first wheel.
  • hydraulic pressure is applied to the braking unit 96 provided at 91.
  • the third line 73 is preferably connected to the third port 58.
  • the third wheel 73 guides the brake oil discharged through the third port 58 to the third wheel 93.
  • the hydraulic pressure is applied to the braking unit 98 provided at 93.
  • the second master cylinder 60 may include a cylinder 61, a second piston 62, a fourth piston 63, a second port 67, and a fourth port 68. .
  • the second master cylinder 60 may be provided in pairs next to the first master cylinder 50, and in particular, the second master cylinder 60 and the first master cylinder 50. Is preferably provided to be connected in parallel.
  • the cylinder 61 forms the body of the second master cylinder 60, and the brake oil is filled therein.
  • the second piston 62 and the fourth piston 63 may be provided inside the cylinder 61, respectively.
  • a second spring 64 may be provided between the second piston 62 and the fourth piston 63, and a fourth spring 65 may be provided in front of the fourth piston 63. Can be.
  • the second port 67 may be formed at the center portion of the cylinder 61
  • the fourth port 68 may be formed at the front portion of the cylinder 61.
  • the configuration of the second master cylinder 60 may correspond to the configuration of the first master cylinder 50, and the operation example is the same as that of the first master cylinder 50 described above, and thus description thereof is omitted.
  • the second circuit unit 80 may be connected to the second port 67 and the fourth port 68.
  • the second circuit unit 80 may include a second line 82 and a fourth line 84.
  • the second line 82 is preferably connected to the second port 67.
  • the second wheel 82 guides the brake oil discharged through the second port 67 to the second wheel 92.
  • hydraulic pressure is applied to the braking unit 97 provided at 92.
  • the fourth line 84 is preferably connected to the fourth port 68.
  • the fourth wheel 84 guides the brake oil discharged through the fourth port 68 to the fourth wheel 94. Hydraulic pressure is preferably applied to the braking unit 99 provided in the 94.
  • connection arrangement between the first line to the fourth line (71, 82, 73, 84) and each port of the master cylinder can be changed.
  • the circuit lines (first line and third line) of the first circuit portion 70 connected to the braking device of the front wheel are connected to each master cylinder. It may also be connected to the front port, respectively.
  • the circuit lines (second line and fourth line) of the second circuit unit 80 connected to the brake device of the rear wheel are connected to each master cylinder. Can be connected to the rear port respectively.
  • each circuit portion is connected to a plurality of ports of the respective master cylinder, respectively Hydraulic lines are included. Accordingly, each of the wheels 91, 92, 93, and 94 may correspond to any one of front, rear, left, and right wheels of the vehicle, and may be applied without being limited to the wheel of a specific position.
  • the hydraulic lines applied to each wheel can be made independently of each other, the pipe of any one hydraulic line is broken Thus, even if the hydraulic pressure is down, the remaining hydraulic lines may not be affected, and thus, it is possible to maintain a stable braking force.
  • the present invention can be applied to an industry by providing a braking device for a vehicle in which safety performance is remarkably improved.

Abstract

La présente invention concerne un dispositif de freinage de véhicule offrant des performances de freinage stables et améliorées. Selon un mode de réalisation de la présente invention, le dispositif de freinage de véhicule comprend : une pédale de frein qui génère une force de pression ; un dispositif d'amplification de puissance conçu de telle sorte que la force de pression provenant de la pédale de frein soit amplifiée, la pression amplifiée étant divisée et répartie ; une pluralité de maîtres-cylindres qui sont agencés de manière séparée, parallèlement les uns aux autres et qui utilisent respectivement l'entrée de pression divisée et amplifiée par le dispositif d'amplification de puissance pour générer une pression de freinage hydraulique ; ainsi qu'un ensemble circuit permettant de conduire la pression hydraulique jusqu'aux ensembles de freinage sur roues reliés de manière correspondante à chacun des maîtres-cylindres.
PCT/KR2010/003989 2009-09-11 2010-06-21 Dispositif de freinage de véhicule WO2011031001A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0085668 2009-09-11
KR1020090085668A KR20110027881A (ko) 2009-09-11 2009-09-11 차량용 제동 장치

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WO2011031001A1 true WO2011031001A1 (fr) 2011-03-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108622057A (zh) * 2017-03-24 2018-10-09 郑州宇通客车股份有限公司 一种并列式制动主缸、带该制动主缸的真空助力器和车辆

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152345A (en) * 1936-09-17 1939-03-28 Hydraulic Brake Co Fluid pressure braking system
US3021677A (en) * 1961-03-01 1962-02-20 Nickolas P Miller Dual hydraulic master cylinder and brake system
JPH0633767U (ja) * 1992-02-25 1994-05-06 制研化学工業株式会社 ブレーキ用２連式マスターシリンダ装置
KR20010103902A (ko) * 2000-05-10 2001-11-24 배길훈 이중 마스터 실린더
KR20020030875A (ko) * 2000-10-18 2002-04-26 류정열 브레이크 마스터 실린더

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152345A (en) * 1936-09-17 1939-03-28 Hydraulic Brake Co Fluid pressure braking system
US3021677A (en) * 1961-03-01 1962-02-20 Nickolas P Miller Dual hydraulic master cylinder and brake system
JPH0633767U (ja) * 1992-02-25 1994-05-06 制研化学工業株式会社 ブレーキ用２連式マスターシリンダ装置
KR20010103902A (ko) * 2000-05-10 2001-11-24 배길훈 이중 마스터 실린더
KR20020030875A (ko) * 2000-10-18 2002-04-26 류정열 브레이크 마스터 실린더

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108622057A (zh) * 2017-03-24 2018-10-09 郑州宇通客车股份有限公司 一种并列式制动主缸、带该制动主缸的真空助力器和车辆
CN108622057B (zh) * 2017-03-24 2023-08-01 宇通客车股份有限公司 一种并列式制动主缸、带该制动主缸的真空助力器和车辆

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