CN110936934A - Double-support assembly unit for vehicle brake booster - Google Patents

Double-support assembly unit for vehicle brake booster Download PDF

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Publication number
CN110936934A
CN110936934A CN201911395973.9A CN201911395973A CN110936934A CN 110936934 A CN110936934 A CN 110936934A CN 201911395973 A CN201911395973 A CN 201911395973A CN 110936934 A CN110936934 A CN 110936934A
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CN
China
Prior art keywords
pedal force
pedal
force transmission
electric power
brake booster
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Legal status (The legal status 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 status listed.)
Pending
Application number
CN201911395973.9A
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Chinese (zh)
Inventor
潘亚敏
韩星
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Shanxi Guoli Information Technology Co Ltd
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Shanxi Guoli Information Technology Co Ltd
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Publication date
Application filed by Shanxi Guoli Information Technology Co Ltd filed Critical Shanxi Guoli Information Technology Co Ltd
Priority to CN201911395973.9A priority Critical patent/CN110936934A/en
Publication of CN110936934A publication Critical patent/CN110936934A/en
Pending legal-status Critical Current

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    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

The invention provides a double-support assembly unit for a vehicle brake booster, which aims to overcome the defect that the conventional vehicle brake booster can be manually braked only by paying large force when a motor fails. The invention can replace the single support assembly unit of the traditional vehicle brake booster, so that the support return spring can be arranged on the electric power support, when the motor of the vehicle brake booster is in failure, a driver does not need to overcome the elastic force of the electric power support return spring during manual braking, and the pedal force required to be exerted is less than that in the prior art.

Description

Double-support assembly unit for vehicle brake booster
Technical Field
The invention relates to a double carrier assembly unit for a vehicle brake booster.
Background
The conventional brake booster for vehicles, such as those disclosed in patent documents publication nos. CN 109131270 a and CN 107949507A, have the common disadvantages that:
1. by adopting the structure of single support and middle reset, when the motor of the electric power generation unit breaks down and a driver manually treads a brake pedal to brake, great force needs to be exerted, and the burden of the driver is increased.
2. When the vehicle power-assisted brake recognizes that the brake pedal is blocked, in order to prevent the foot of the driver from being pinched and prevent foreign objects from damaging the components of the brake system, the continuous braking is stopped, and in an emergency, the vehicle can be caused to hit a front obstacle, and even cause injuries and deaths of pedestrians and/or people on the vehicle.
Disclosure of Invention
The present invention provides a brake booster for a vehicle,
one of the technical problems to be solved is that when a motor of a traditional vehicle brake booster is in failure, the manual brake can be realized only by paying large force;
the other technical problem solved is the potential safety hazard caused by stopping the continuous braking of the traditional vehicle brake booster when the pedal is blocked in the automatic braking mode.
The technical scheme of the invention is as follows:
a dual carrier assembly unit for a vehicle brake booster, characterized by:
the pedal force transmission device comprises a pedal force support, a pedal force guide element, an electric power support, an electric power guide element, a pedal force input rod, a pedal force transmission rod and a pedal force transmission plate;
the pedal force bracket comprises a pedal push rod and at least one pedal force bracket arm connected with the pedal push rod; the pedal force guide element is arranged at the end part of the pedal force bracket arm;
the electric power support comprises an electric push rod and at least one electric power support arm connected with the electric push rod; the electrodynamic force guide element is arranged at the end part of the electrodynamic force bracket arm;
the pedal push rod and the electric push rod are both of tubular structures with openings at two ends, and the outer wall of the electric push rod is provided with external threads; the pedal push rod is arranged in the electric push rod, and the pedal push rod and the electric push rod are in clearance fit and can relatively move along the axial direction;
the pedal force guide element and the electric power guide element are respectively used for connecting the pedal force support arm and the electric power support arm with a guide rail of the vehicle brake booster in a sliding manner;
the pedal force input rod and the pedal force transmission rod are axially arranged in the pedal push rod and can axially move along the pedal push rod; one end of the pedal force input rod is connected with a brake pedal, the other end of the pedal force output rod is connected with a pedal force transmission rod, and the other end of the pedal force transmission rod is used for transmitting pedal force to a braking force output element of a vehicle brake booster;
the pedal force transmission plate is arranged on the outer side wall of the pedal force transmission rod, or the pedal force transmission plate and the pedal force transmission rod are axially and sequentially arranged; an anti-rotation triggering column is arranged on the pedal force transmission plate;
the pedal force support arm is provided with a first guide hole, the electric power support arm is provided with a second guide hole, and the anti-rotation triggering column sequentially penetrates through the first guide hole and the second guide hole.
Furthermore, an electric elastic element is arranged outside the pedal push rod and is positioned between the electric power support arm and the pedal force support arm; the end part of the pedal force transmission rod close to the braking force output element is provided with a pedal elastic element.
Furthermore, the pedal elastic element comprises a first elastic body and a second elastic body which are sequentially arranged along the transmission direction of the braking force, one end of the second elastic body is connected with the first elastic body, and the other end of the second elastic body is contacted with the braking force output element; the elastic coefficients of the first elastic body and the second elastic body are different.
Furthermore, an elastic accessory of a cantilever structure is also arranged on the electric power support arm; a first carrier and a second carrier are arranged on the side wall of the anti-rotation triggering column, and the axial length of the first carrier is greater than that of the second carrier; the position of the first carrier corresponds to the elastic accessory and is used for pressing the elastic accessory to deform when the brake pedal is blocked; the second carrier is used to establish contact with the stop face of the electrodynamic support to prevent excessive deformation of the elastic appendages.
Furthermore, the pedal force transmission rod comprises a front section and a rear section which are coaxially clamped; only when the brake is automatically and emergently braked, the front section and the rear section can be separated from the clamping part under the condition of external force retardation; the pedal force transmission plate is disposed on an outer side wall of the rear section.
Or the pedal force transmission rod comprises a front section, a middle section and a rear section which are coaxially and sequentially clamped; only during the automatic emergency braking, the front section and the middle section or the middle section and the rear section can be separated from the clamping part under the condition of external force retardation; the pedal force transmission plate is disposed on an outer side wall of the rear section.
Or the pedal force transmission rod and the pedal force transmission plate are axially arranged in sequence and are only contacted and not connected.
Or the pedal force transmission rod is axially clamped with the pedal force transmission plate; only during automatic emergency braking, the pedal force transmission rod and the pedal force transmission plate can be separated at the clamping position under the external force resistance.
Further, the pedal force support arm and the electric power support arm are arranged in a crossed mode.
Compared with the prior art, the invention has the advantages that:
1. the double-support assembly unit can replace a single-support assembly unit of a traditional vehicle brake booster, so that only the electric power support can be provided with the support return spring, when a motor of the vehicle brake booster breaks down, a driver does not need to overcome the elastic force of the electric power support return spring during manual braking, and the pedal force required to be exerted is less than that in the prior art.
2. The double-support assembly unit is provided with an electrodynamic force elastic element and a pedal force elastic element respectively for electrodynamic force and pedal force, and can adapt to the brake pedal feeling of different types of vehicles by adjusting the elastic coefficients of the electrodynamic force elastic element and/or the pedal force elastic element, for example, cars, sedans, sports cars and the like in passenger vehicle types can adopt elastic elements with small elastic coefficients, and SUVs, cross-country vehicle types and the like can adopt elastic elements with large elastic coefficients.
3. The pedal force transmission rod in the double-support assembly unit is of a two-section split structure consisting of a front section and a rear section, and when foreign matters or feet of a driver extend into the bottom of a brake pedal of the vehicle in an automatic emergency braking mode, the motion of the front section is blocked, so that the rear section is separated from the front section, and the condition that the feet of the driver are clamped due to the fact that the front section continues to translate or parts of a braking system are damaged due to the fact that the foreign matters are firm is avoided; meanwhile, in the automatic emergency braking mode, the rear section can still translate under the action of the electric power, so that the electric power transmission unit cannot be prevented from transmitting the electric power to the braking force output element to implement braking operation, and the potential safety hazard is avoided.
4. The pedal force transmission rod in the double-support assembly unit is of a three-section split structure formed by coaxially clamping a front section, a middle section and a rear section, and when foreign matters or feet of a driver extend into the bottom of a brake pedal in an automatic emergency braking mode, the movement of the front section or the middle section is blocked, so that the front section and the middle section or the middle section and the rear section are separated, and the condition that the feet of the driver are clamped and damaged due to the fact that the front section continues to translate or parts of a braking system are damaged due to the fact that the foreign matters are firm is avoided; meanwhile, the rear section can still translate under the action of the electric braking force, so that the electric power transmission unit cannot be prevented from transmitting the electric braking force to the braking force output unit to implement braking operation, and the potential safety hazard is avoided; simultaneously, because footboard power transmission rod has two departments joint, if one of them department of joint extremely can not throw off when can not throw off because of corrosion etc. the card, can also throw off from another department, for two sections split type designs, the reliability of throwing off between each section of footboard power transmission rod when further having improved the footboard and blocking.
5. In the invention, the sections of the pedal force transmission rod are connected in a clamping manner, no idle stroke exists between the sections, and the brake pedal feels better when a driver treads the brake pedal during normal braking.
6. In the invention, the sections of the pedal force transmission rod are connected in a clamping manner, no idle stroke exists between the sections, the automatic emergency braking operation interrupted by a driver can be quickly responded during the automatic emergency braking, and the national requirement that an Automatic Emergency Braking System (AEBS) of a passenger vehicle has the driver intervention performance is met.
7. The pedal force transmission rod and the pedal force transmission plate in the pedal force transmission unit are axially arranged in a split manner, and under an automatic emergency braking mode, when foreign matters or feet of a driver extend into the bottom of a brake pedal of a vehicle, the movement of the pedal force transmission rod is blocked, so that the pedal force transmission plate is separated from the pedal force transmission rod, and the condition that the feet of the driver are clamped due to the fact that the pedal force transmission rod continues to translate or brake system components are damaged due to the fact that the foreign matters are firm is avoided; meanwhile, in the automatic emergency braking mode, the pedal force transmission plate can still translate under the action of the electric power, so that the electric power transmission unit is not hindered from transmitting the electric power to the braking force output unit to implement braking operation, and the potential safety hazard is avoided.
8. When the pedal force transmission rod is clamped with the pedal force transmission plate, no idle stroke exists between the pedal force transmission rod and the pedal force transmission plate, and the brake pedal feels better when a driver treads the brake pedal during normal braking.
9. When the pedal force transmission rod is clamped with the pedal force transmission plate, no idle stroke exists between the pedal force transmission rod and the pedal force transmission plate, the automatic emergency braking operation can be quickly interrupted by a driver during automatic emergency braking, and the national requirement that a passenger car Automatic Emergency Braking System (AEBS) has driver intervention performance is met.
10. When the sections of the pedal force transmission rod or the pedal force transmission rod and the pedal force transmission plate are separated due to the blocking force during automatic emergency braking, the pedal force transmission rod and the pedal force transmission plate can be easily clamped again in a manual pedal force applying mode after the blocking force disappears, and the pedal force transmission rod is not required to be maintained or influenced to be reused.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a dual bracket assembly unit according to the present invention.
Fig. 2 is an exploded view of fig. 1.
Figure 3 is a schematic view of the mating of the electrodynamic brace and the electrodynamic guide element of figure 1.
Figure 4 a schematic diagram of the construction of the electro-dynamic support arm embodiment of figure 1.
Fig. 5 is a schematic view of the engagement of the pedal force bracket and the pedal force guide member of fig. 1.
Fig. 6 is a schematic structural view of the pedal force transmission plate in fig. 1.
FIG. 7 is a schematic structural diagram of a dual-bracket assembly unit when the electric power bracket arm and the pedal force bracket arm are arranged crosswise.
Fig. 8 is an exploded view of the pedal force transmission rod of the present invention in a three-stage configuration.
Fig. 9 shows one embodiment of the present invention in which the pedal force transmitting rod is snap-fitted to the pedal force transmitting plate.
Description of reference numerals:
1-pedal force input lever, 5-electric push lever, 6-pedal push lever, 7-pedal force transmission lever, 71-front section, 712-first claw catch, 72-rear section, 722-second claw catch, 73-middle section, 731-first ball catch, 732-second ball catch, 74-bar, 711-ball catch, 721-claw catch, 8-pedal force transmission plate, 81-catch, 10-anti-rotation trigger post, 101-first carrier, 102-second carrier, 12-electric power bracket, 120-electric power bracket arm, 121-second guide hole, 122-elastic attachment, 13-pedal force bracket, 130-pedal force bracket arm, 131-first guide hole, 14-electric power guide element, 15-pedal force guide element, 18-electric elastic element, 35-pedal elastic element, 36-induction magnet.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention provides a dual carrier assembly unit for a vehicle brake booster, a pedal force carrier 13, a pedal force guide member 15, an electric power carrier 12, an electric power guide member 14, a pedal force input rod 1, a pedal force transmission rod 7 and a pedal force transmission plate 8;
the pedal force bracket 13 comprises a pedal push rod 6, at least one pedal force bracket arm 130 connected with the pedal push rod 6; the pedal force guide member 15 is provided at the end of the pedal force bracket arm 130;
the electric power bracket 12 comprises an electric push rod 5, at least one electric power bracket arm 120 connected with the electric push rod 5; the electrodynamic guide element 14 is arranged at the end of the electrodynamic carrier arm 120;
the pedal push rod 6 and the electric push rod 5 are both of a cylindrical structure with openings at two ends, and the outer wall of the electric push rod 5 is provided with external threads; the pedal push rod 6 is arranged in the electric push rod 5, and the pedal push rod and the electric push rod are in clearance fit and can relatively move along the axial direction;
the pedal force guide member 15 and the electric force guide member 14 are used to slidably couple the pedal force bracket arm 130 and the electric force bracket arm 120 with the same guide rail or different guide rails of the vehicle brake booster, respectively;
when the pedal force support arm 130 and the electric force support arm 120 are slidably connected to the same guide rail of the vehicle brake booster, in order to achieve the purpose of saving labor only by manual braking, the guide rail of the vehicle brake booster may be designed to have a groove-shaped section, so that the pedal force guide member 15 may be matched with the outer wall of the guide rail of the vehicle brake booster to achieve external guidance, the electric force guide member 14 may be matched with the inner wall of the guide rail of the vehicle brake booster to achieve internal guidance, and at this time, the spring may be installed in the guide rail to achieve only resetting of the electric force support 12.
When the pedal force support arm 130 and the electric power support arm 120 are slidably connected to different guide rails of the vehicle brake booster (i.e. the electric power support arm 120 and the pedal force support arm 130 are arranged in a crossed manner as shown in fig. 7), no matter what structural form is adopted for the guide rails of the vehicle brake booster, a return spring can be arranged only for the electric power support 12, and a return spring can also be arranged for both the electric power support 12 and the pedal force support 13.
The pedal force input rod 1 and the pedal force transmission rod 7 are axially arranged in the pedal push rod 6 and can axially move along the pedal push rod 6; one end of the pedal force input rod 1 is used for being connected with a brake pedal, the other end of the pedal force output rod 1 is connected with a pedal force transmission rod 7, and the other end of the pedal force transmission rod 7 is used for transmitting pedal force to a braking force output element of a vehicle brake booster;
the pedal force transmission rod 7 includes a front section 71 and a rear section 72 that are coaxially arranged; one end of the front section 71 is used for being connected with the output end of the pedal force input unit, and the other end of the front section 71 is clamped with one end of the rear section 72; the end part of the front section 71 is provided with a spherical chuck 711, the end part of the rear section 72 connected with the front section 71 is provided with a claw-shaped clamping groove 721 for tightly holding the spherical chuck 711, and the front section 71 and the rear section 72 are clamped with the claw-shaped clamping groove 721 through the spherical chuck 711; under normal braking conditions, the ball clamp 711 on the front section 71 of the pedal force transmission rod 7 is tightly wrapped by the claw-shaped clamping groove 721 on the rear section 72; under the automatic braking mode, when brake pedal can lead to the motion of anterior segment 71 to be obstructed when being blocked by foreign matter or driver's foot, ball dop 711 can break loose claw shape draw-in groove 721, make anterior segment 71 and back end 72 separation, thereby make back end 72 can be driven by the electric power and continue to remove along the braking force direction, thereby can not hinder electric power transmission unit and carry out braking operation on transmitting the electric power to braking force output unit, simultaneously because anterior segment 71 stops to continue the translation and make braking system part can not damaged by the foreign matter or driver's foot can not be hindered by the clamp.
The pedal force transmission plate 8 is arranged on the outer side wall of the rear section 72, and the anti-rotation triggering column 10 and the induction magnet 36 are arranged on the pedal force transmission plate 8; in other embodiments, the induction magnet 36 may be provided not on the pedal force transmission plate 8 but on other components in the vehicle brake booster.
A first guide hole 131 is formed in the pedal force support arm 130, a second guide hole 121 is formed in the electric power support arm 120, and the anti-rotation triggering column 10 sequentially penetrates through the first guide hole 131 and the second guide hole 121;
as shown in fig. 4, the electric power bracket arm 120 is also provided with an elastic attachment 122; as shown in fig. 6, a first carrier 101 and a second carrier 102 are arranged on the side wall of the anti-rotation triggering column 10, and the axial length of the first carrier 101 is greater than that of the second carrier 102; the first carrier 101 is positioned in correspondence with said elastic appendage 122 for pressing the elastic appendage 122 in deformation when the brake pedal is blocked; the second carrier 102 is used to establish contact with the stop surfaces of the electrical power bracket 12 to prevent excessive deformation of the resilient appendage 122. When the brake pedal is blocked, the pedal force transmission plate 8 and the rotation-preventing triggering column 10 press the elastic attachment 122 on the electric power support arm 120 through the first carrier 101 to deform the elastic attachment, so that the distance between the second carrier 102 and the upper surface of the electric power support 12 is reduced to be smaller than or equal to the threshold distance of the blocking event, the relative displacement is identified by the hall sensor of the vehicle brake booster and is sent to the control unit of the vehicle brake booster, the fault code of the blocking event is recorded by the control unit, and an information source is provided for accident tracing.
A pedal elastic member 35 is provided at the end of the rear section 72 of the pedal force transmission rod 7; an electric elastic element 18 is arranged outside the pedal push rod 6, and the electric elastic element 18 is positioned between the electric power bracket arm 120 and the pedal force bracket arm 130;
in other embodiments, as shown in fig. 8, the pedal force transmission rod 7 can be designed into a three-stage structure, which includes a front section 71, a middle section 73 and a rear section 72 that are axially clamped in sequence; a first spherical chuck 731 and a second spherical chuck 732 are respectively arranged at two ends of the middle section 73, a first claw-shaped clamping groove 712 is arranged at one end of the front section 71, a second claw-shaped clamping groove 722 is arranged at one end of the rear section 72, the front section 71 and the middle section 73 are in matched clamping connection with the first spherical chuck 731 through the first claw-shaped clamping groove 712, and the rear section 72 and the middle section 73 are in matched clamping connection with the second spherical chuck 732 through the second claw-shaped clamping groove 722; the front section 71 and the middle section 73, the middle section 73 and the rear section 72 can be disengaged from the snap-fit under a certain force. Compared with a two-section design, the three-section design has higher reliability, and when one clamping position is corroded to cause that the pedal force transmission rod 7 cannot be separated and divided into two sections, the other clamping position can be separated and divided into two sections.
In other embodiments, as shown in fig. 9, the pedal force transmission rod 7 may be an integral structure, the pedal force transmission plate 8 is clamped at one end of the pedal force transmission rod 7, and the pedal force transmission plate 8 can be separated from the clamping position of the pedal force transmission rod 7 only during automatic emergency braking. As shown in fig. 9, one end of the pedal force transmission rod 7 may be provided with a plurality of rectangular grooves to form a plurality of clamping strips 74, and the outer side of each clamping strip 74 has a protrusion, and correspondingly, a clamping groove 81 is processed in a blind hole in the center of the pedal force transmission plate 8, and a groove corresponding to the protrusion is provided at a corresponding position of the clamping groove 81, so that the clamping between the pedal force transmission rod 7 and the pedal force transmission plate 8 is realized through the matching of the clamping strips 74 and the clamping groove 81.
In other embodiments, the pedal force transmission rod 7 may be a one-piece structure, and the pedal force transmission plate 8 is disposed at one end of the pedal force transmission rod 7, and the two are not connected only by contact.
In other embodiments, the pedal elastic element 35 may also be composed of a first elastic body and a second elastic body arranged in this order in the braking force transmission direction, one end of the second elastic body being connected to the first elastic body, the other end of the second elastic body being in contact with the braking force output element of the vehicle brake booster; the elastic coefficients of the first elastic body and the second elastic body are different.
In design, the elastic coefficient of the electrodynamic elastic element 18 and/or the pedal force elastic element 35 can be adjusted to adapt to the brake pedal feeling of different types of vehicles, for example, a car, a sedan, a sports car and the like in a passenger car type can adopt an elastic element with a small elastic coefficient, and an SUV, an off-road vehicle type and the like can adopt an elastic element with a large elastic coefficient.

Claims (10)

1. A dual carrier assembly unit for a vehicle brake booster, characterized by:
comprises a pedal force bracket (13), a pedal force guide element (15), an electric power bracket (12), an electric power guide element (14), a pedal force input rod (1), a pedal force transmission rod (7) and a pedal force transmission plate (8);
the pedal force bracket (13) comprises a pedal push rod (6) and at least one pedal force bracket arm (130) connected with the pedal push rod (6); the pedal force guide element (15) is arranged at the end of the pedal force bracket arm (130);
the electric power bracket (12) comprises an electric push rod (5) and at least one electric power bracket arm (120) connected with the electric push rod (5); the electrodynamic guide element (14) is arranged at the end of the electrodynamic support arm (120);
the pedal push rod (6) and the electric push rod (5) are both of a cylindrical structure with openings at two ends, and the outer wall of the electric push rod (5) is provided with external threads; the pedal push rod (6) is arranged in the electric push rod (5), and the pedal push rod and the electric push rod are in clearance fit and can relatively move along the axial direction;
the pedal force guide element (15) and the electric power guide element (14) are respectively used for connecting the pedal force support arm (130) and the electric power support arm (120) with a guide rail of the vehicle brake booster in a sliding way;
the pedal force input rod (1) and the pedal force transmission rod (7) are axially arranged in the pedal push rod (6) and can axially move along the pedal push rod (6); one end of the pedal force input rod (1) is connected with a brake pedal, the other end of the pedal force output rod (1) is connected with a pedal force transmission rod (7), and the other end of the pedal force transmission rod (7) is used for transmitting pedal force to a braking force output element of a vehicle brake booster;
the pedal force transmission plate (8) is arranged on the outer side wall of the pedal force transmission rod (7), or the pedal force transmission plate (8) and the pedal force transmission rod (7) are axially and sequentially arranged; an anti-rotation triggering column (10) is arranged on the pedal force transmission plate (8);
a first guide hole (131) is formed in the pedal force support arm (130), a second guide hole (121) is formed in the electric power support arm (120), and the anti-rotation trigger column (10) penetrates through the first guide hole (131) and the second guide hole (121) in sequence.
2. The dual bracket assembly unit for a vehicle brake booster of claim 1, wherein: an electric elastic element (18) is arranged outside the pedal push rod (6), and the electric elastic element (18) is positioned between the electric power bracket arm (120) and the pedal force bracket arm (130); the end part of the pedal force transmission rod (7) close to the braking force output element is provided with a pedal elastic element (35).
3. The dual bracket assembly unit for a vehicle brake booster of claim 2, wherein: the pedal elastic element (35) comprises a first elastic body and a second elastic body which are sequentially arranged along the transmission direction of the braking force, one end of the second elastic body is connected with the first elastic body, and the other end of the second elastic body is contacted with the braking force output element; the elastic coefficients of the first elastic body and the second elastic body are different.
4. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the electric power support arm (120) is also provided with an elastic accessory (122) with a cantilever structure;
a first carrier (101) and a second carrier (102) are arranged on the side wall of the anti-rotation triggering column (10), and the axial length of the first carrier (101) is greater than that of the second carrier (102); the first carrier (101) is positioned corresponding to the elastic attachment (122) and is used for pressing the elastic attachment (122) to deform when the brake pedal is blocked; the second carrier (102) is used to establish contact with a stop surface of the electric power support (12) to prevent excessive deformation of the elastic appendage (122).
5. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the pedal force transmission rod (7) comprises a front section (71) and a rear section (72) which are coaxially clamped; only when the brake is automatically applied in emergency, the front section (71) and the rear section (72) can be separated from the clamping part under the condition of external force retardation;
the pedal force transmission plate (8) is provided on an outer side wall of the rear section (72).
6. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the pedal force transmission rod (7) comprises a front section (71), a middle section (73) and a rear section (72) which are coaxially and sequentially clamped; only during automatic emergency braking, the front section (71) and the middle section (73) or the middle section (73) and the rear section (72) can be separated from the clamping part under the condition of external force retardation;
the pedal force transmission plate (8) is provided on an outer side wall of the rear section (72).
7. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the pedal force transmission rod (7) and the pedal force transmission plate (8) are axially arranged in sequence and are only in contact with each other but not connected with each other.
8. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the pedal force transmission rod (7) is axially clamped with the pedal force transmission plate (8); only during automatic emergency braking, the pedal force transmission rod (7) and the pedal force transmission plate (8) can be separated at the clamping position under the condition of external force retardation.
9. The dual bracket assembly unit for a vehicle brake booster of claim 4, wherein: the pedal force bracket arm (130) and the electric power bracket arm (120) are arranged in a crossing manner.
10. A dual bracket assembly unit for a vehicle brake booster according to claim 1, 2 or 3, characterized in that: the pedal force bracket arm (130) and the electric power bracket arm (120) are arranged in a crossing manner.
CN201911395973.9A 2019-12-30 2019-12-30 Double-support assembly unit for vehicle brake booster Pending CN110936934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911395973.9A CN110936934A (en) 2019-12-30 2019-12-30 Double-support assembly unit for vehicle brake booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911395973.9A CN110936934A (en) 2019-12-30 2019-12-30 Double-support assembly unit for vehicle brake booster

Publications (1)

Publication Number Publication Date
CN110936934A true CN110936934A (en) 2020-03-31

Family

ID=69912528

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911395973.9A Pending CN110936934A (en) 2019-12-30 2019-12-30 Double-support assembly unit for vehicle brake booster

Country Status (1)

Country Link
CN (1) CN110936934A (en)

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