CN211442279U - Integrated electronic hydraulic brake device - Google Patents
Integrated electronic hydraulic brake device Download PDFInfo
- Publication number
- CN211442279U CN211442279U CN201922012375.0U CN201922012375U CN211442279U CN 211442279 U CN211442279 U CN 211442279U CN 201922012375 U CN201922012375 U CN 201922012375U CN 211442279 U CN211442279 U CN 211442279U
- Authority
- CN
- China
- Prior art keywords
- ball screw
- input
- sensor chip
- displacement sensor
- input shaft
- Prior art date
- 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.)
- Active
Links
- 241000202814 Cochliomyia hominivorax Species 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 68
- 239000002184 metal Substances 0.000 claims description 22
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 24
- 238000010009 beating Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses an integrated form electron hydraulic braking device belongs to the car braking field. Specifically, an integrated electronic hydraulic brake device is provided, which is characterized in that: the brake master cylinder is integrated with a ball screw-worm gear assembly and a motor (27) which are used for pushing the brake master cylinder (1), the ball screw-worm gear assembly comprises a ball screw (16), a ball screw nut (17) which drives the ball screw (16) to move in a translation mode in a rotating mode, a worm wheel (7) which is linked with the ball screw nut (17) to rotate together, and a worm (25) which is meshed with the worm wheel (7), the motor (27) transmits the worm (25) according to signals of a control assembly, and the ball screw (16) pushes a force output assembly to compress the brake master cylinder (1) to build pressure. The utility model has the advantages of high transmission efficiency, high precision, low noise and suitability for high-speed transmission.
Description
Technical Field
The utility model relates to an integrated form electron hydraulic braking device, concretely relates to automotive filed's integrated form electron hydraulic braking device.
Background
With the continuous development and progress of the automobile industry technology, more and more automobiles develop towards electric, intelligent and clean. Most of the existing new energy automobiles adopt batteries, natural gas, batteries and gasoline or diesel oil to provide power for the new energy automobiles. Taking a pure electric vehicle as an example, the vehicle is driven by a motor, and a traditional engine is not used for providing a power source for a vacuum booster arranged on the vehicle. Although, the electronic vacuum pump in the prior art can provide a vacuum source for the electric vehicle. However, such an electronic vacuum pump cannot achieve regenerative braking, cannot provide precise control of braking force, and also cannot meet the braking demand of intelligent driving. Accordingly, electronic hydraulic brake boosters have evolved and are continually being developed to accommodate more complex driving scenarios.
The electronic hydraulic brake system EHB was developed on the basis of a conventional hydraulic brake. The control mechanism replaces the traditional hydraulic brake pedal with an electronic brake pedal, and cancels a bulky vacuum booster. In general, an electronic hydraulic brake device senses a pedal pressure of a driver by a sensor and then adjusts a brake pressure of each wheel by a hydraulic modulator in response to the pedal pressure of the driver.
At present, in an electronic hydraulic brake device, a transmission mechanism is relatively complex, the electronic hydraulic brake device is generally driven by a combination of a worm gear, a worm and a gear rack, the number of mechanism parts is large, the part processing requirement is high, the part equipment is poor in consistency, and the occupied space is large.
For example, in chinese utility model patent application publication No. CN103754209A, ursolic et al discloses an electronic hydraulic brake device, which adopts dual motor input, has a pressure regulating transmission mechanism, a brake actuator and a control system, regulates hydraulic brake power and performs failure protection, and the transmission mechanism for pedal braking has a complex structure and is not easy to maintain.
For example, in chinese utility model patent application publication No. CN103481880A, sun meizhen discloses an electronic hydraulic brake device, which simplifies a hydraulic circuit and reduces the number of parts. However, the brake device is low in integration level, large in size, difficult to arrange in a front cavity of an automobile, low in universality and inconvenient to install.
For another example, in the chinese utility model patent application with publication No. CN106494379A, the brake booster includes an input rod that is driven by a brake pedal and moves forward in the axial direction and an assist pusher that converts the rotary driving motion of a motor into a linear motion, and a relative displacement detection device for measuring the relative stroke of the input rod and the assist pusher is provided between the input rod and the assist pusher. The utility model discloses a patent application is equipped with relative displacement detection device between input rod and helping hand pushing element, utilizes relative displacement detection device can detect out the relative displacement that input rod and helping hand pushed element in braking process for ECU control motor drive helping hand pushing element removes, has improved the accuracy. However, the response speed is slow, and the structure is not compact enough.
Further, in the chinese utility model patent application publication No. CN207089289U, shuqiang et al discloses an integrated electronic hydraulic brake device, including: a housing; the main cylinder is connected with the shell; the output end of the motor is connected with the piston of the main cylinder through the main cylinder joint; the pedal push rod is connected with the brake pedal; one end of the main cylinder push rod is connected with the pedal push rod and slides along the axial direction of the shell along with the pedal push rod, and the other end of the main cylinder push rod is opposite to the main cylinder joint and is provided with a gap to form a decoupling structure; the pedal feeling simulation device is arranged outside the shell and is connected with the pedal push rod; and the displacement sensor is arranged in the shell. The utility model discloses an adopted traditional worm gear-rack and pinion's structure, processing installation accuracy is difficult for guaranteeing, and transmission noise is big, and wearing and tearing are big.
Accordingly, there remains a need in the art for an improved integrated electro-hydraulic brake device in the field of integrated electro-hydraulic braking of automobiles.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the applicant and other intensive researches adopt a ball screw-worm gear structure to construct a brand new integrated electronic hydraulic brake device.
Particularly, the utility model provides an integrated form electron hydraulic braking device, its characterized in that:
which is integrated with a ball screw-worm gear assembly and a motor (27) for pushing a brake master cylinder (1) to build pressure, wherein the ball screw-worm gear assembly comprises a ball screw 16, a ball screw nut 17 which drives the ball screw 16 to translate in a rotating way, a worm wheel 7 which is linked with the ball screw nut 17 to rotate together, and a worm 25 which is meshed with the worm wheel 7,
the center of the ball screw 16 is a hollow structure, the pedal input shaft 10 passes through the hollow structure and is guided by the guide structure of the hollow groove of the center of the ball screw 16,
the motor 27 transmits the worm 25 according to a signal of the control assembly, drives the ball screw 16 to move sequentially through the worm wheel 7 and the ball screw nut 17, and pushes the output assembly to compress the brake master cylinder 1 through the ball screw 16 to build pressure.
The utility model discloses an among the technical scheme, the subassembly of exerting oneself includes the input slider 18 of linkage and the pole head 23 of exerting oneself, and above-mentioned ball screw 16 promotes the 18 movements of this input slider, and one side of this input slider 18 nevertheless does not have fixed connection with one side contact of above-mentioned ball screw 16, realizes building the pressure through this pole head 23 compression brake master cylinder 1 of exerting oneself.
In one technical solution of the present invention, the control assembly includes a controller 2, a magnet 4 and a displacement sensor chip 5; the controller 2 is used for receiving and processing signals of the displacement sensor chip 5, sending corresponding instructions to the motor 27 and controlling the motor 27 to rotate; the displacement sensor chip 5 is linked with the input sliding block 18, the magnet 4 is linked with the input shaft limiting metal plate 19, and the input shaft limiting metal plate 19 is linked with the pedal input shaft 10; the input shaft stopper plate 19 is spaced apart from the end surface of the input slider 18 by a predetermined distance.
The utility model discloses an among the technical scheme, displacement sensor chip 5 passes through the fixed upper portion of this input slider 18 of support to with the linkage of input slider 18.
The utility model discloses a among the technical scheme, thereby have certain distance to guarantee between the terminal surface of this spacing panel beating of input shaft 19 and this input slider 18: at the moment of starting braking, when the magnet 4 and the input shaft limiting metal plate 19 are linked to one side, the displacement sensor chip 5 and the input sliding block 18 are in a static state, so that first relative displacement of the magnet 4 and the displacement sensor chip 5 is generated, and the displacement sensor chip 5 acquires a signal of the first relative displacement; when the brake is released, the magnet 4 is driven by the input shaft limiting metal plate 19 to move towards the other side, the input sliding block 18 and the displacement sensor chip 5 are in a static state within a small distance of the initial movement of the magnet 4, so that second relative displacement of the magnet 4 and the displacement sensor chip 5 is generated, and the displacement sensor chip 5 acquires a signal of the second relative displacement.
In the technical solution of the present invention, in the ball screw-worm gear assembly, the ball screw 16 slides in the limiting groove of the front housing 8 through the pin structure pressed on the ball screw, so as to ensure that the ball screw 16 can only translate and not rotate.
In an embodiment of the present invention, in the ball screw-worm gear assembly, the pedal input shaft 10 is guided by the guide structure of the rear housing 9.
In a technical solution of the present invention, in the ball screw-worm gear assembly, the worm wheel 7 is press-fitted on the outer ring of the ball screw nut 17 and connected by a flat key, so that the worm wheel 7 and the ball screw nut 17 form a linkage structure to rotate together.
The utility model discloses an among the technical scheme, this subassembly of exerting oneself still includes slider return spring 3, when this ball screw 16 with promote input slider 18's direction reverse motion, this input slider 18 is the spring force of slider return spring 3 and the reaction force of brake master cylinder 1 of compressed when with the help of the braking, pushes back home position, rather than bring back through ball screw 16.
The utility model also provides an integrated form electron hydraulic braking method, it includes following step:
step S1: the driver steps on the brake pedal and pushes the pedal input shaft 10 to move to one side;
step S2: controlling the motor 27 to start running;
step S3: the main shaft of the motor 27 rotates to drive the worm 25 connected with the motor to rotate, the worm 25 rotates to drive the worm wheel 7 meshed with the worm to rotate, and the worm wheel 7 rotates to drive the ball screw nut 17 to rotate, so that the ball screw 16 moves to one side;
step S4: the ball screw 16 moves to one side, and finally the brake master cylinder 1 is compressed to establish hydraulic pressure to realize braking.
In a technical solution of the present invention, the method further comprises the following steps:
step S5: when the driver releases the brake pedal to release the brake, the controller 2 controls the motor 27 to rotate reversely, and the ball screw 16 is driven to move rightwards through the worm 25, the worm wheel 7 and the ball screw nut 17 in sequence.
In a technical solution of the present invention, the method further comprises the following steps:
step S: when the motor 27 or the controller 2 fails in an emergency, a driver steps on a brake pedal, and the brake pedal compresses the brake master cylinder 1 through the pedal input shaft 10 to build hydraulic pressure to realize braking.
In a technical solution of the present invention, in step S1, the driver steps on the brake pedal to push the push rod fork 15, the ball push rod 12, the pedal input shaft 10, the input shaft limiting metal plate 19, and the magnet 4 connected to the brake pedal to move to one side;
in step S2, when the magnet 4 starts moving to one side from rest, the displacement sensor chip 5 is still in rest state, and at this time, the displacement sensor chip 5 and the magnet 4 have a certain first relative displacement, the displacement sensor chip 5 sends the first displacement signal to the controller 2, outputs a control signal through arithmetic operation, and controls the motor 27 to start operation;
in step S4, the ball screw 16 moves to one side to push the input slider 18 contacting with it to move to the same side, the input slider 18 drives the feedback disk 20, the output rod seat 21, the output rod connecting shaft 22, and the output rod head 23 to move to the same side, and finally the output rod head 23 pushes the piston to compress the brake master cylinder 1 to establish hydraulic pressure to realize braking.
The utility model discloses an among the technical scheme, in step S5, loosen brake pedal and remove the braking when the driver, magnet 4 is at the spacing panel beating 19 of input shaft, pedal input shaft 10, bulb push rod 12, the drive of push rod fork 15 is moved right down, input slider 18 is in quiescent condition in the first small segment distance that moves of magnet 4, displacement sensor chip 5 gathers second relative displacement signal and sends controller 2 to, controller 2 reverses through algorithm control motor 27, loop through worm 25, worm wheel 7, ball screw nut 17 drives ball screw 16 and moves right, input slider 18 resumes to the opposite side to initial position under the combined action of slider return spring 3' S spring force and brake master cylinder 1 hydraulic pressure.
The utility model discloses an among the technical scheme, in step S, when motor 27 or controller 2 became invalid under emergency, the driver stepped on brake pedal, brake pedal loops through push rod fork 15, bulb push rod 12, pedal input shaft 10 and the feedback dish 20 in the subassembly that produces a force, the pole seat 21 that produces a force, the pole connecting axle 22 that produces a force, the pole head 23 that produces a force promotes piston compression brake master cylinder 1 and establishes hydraulic pressure and realize the braking.
Compared with the prior art, the technical scheme of the utility model have following advantage: high transmission efficiency, high precision, low noise and suitability for high-speed back-and-forth transmission.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an integrated electronic hydraulic brake device according to the present invention;
fig. 2 is a sectional view a-a of the electro-hydraulic brake device of fig. 1.
The reference numbers in the figures denote: 1, a brake master cylinder; 2, a controller; 3, a slide block return spring; 4, a magnet; 5, a displacement sensor chip; 6, a maintenance-free rolling bearing I; 7 a worm gear; 8 a front housing; 9a rear housing; 10 a pedal input shaft; 11 a push rod spring; 12 ball head push rods; 13 a push rod spring seat; 14 a metal locking nut; 15 a push rod fork; 16 ball screws; 17 ball screw nuts; 18 an input slider; 19 an input shaft limiting metal plate; 20 a feedback disc; 21 force rod seat; 22 output rod connecting shafts; 23 output club heads; 24 maintenance-free rolling bearing II; 25 of worm; 26 maintenance-free rolling bearing III; 27 motor.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.
Specifically, the functions of the components, the component structures, and the connection relationships between them of the integrated electronic hydraulic brake device of the present invention are described below with reference to fig. 1 and 2 of the drawings of the present invention:
main body assembly
As shown in fig. 1, the integrated electronic hydraulic brake device of the present invention includes a front housing 8, a rear housing 9, and a master cylinder 1 for building pressure brake. The master cylinder 1 may be a master cylinder commonly used in the art, and a detailed description thereof will be omitted. The master cylinder 1 may be fixed to one side of the front housing 8, for example, the left side of the front housing 8 in fig. 1, by bolts.
Input assembly
The utility model discloses an integrated form electronic hydraulic brake device includes the input assembly, and this input assembly links to each other with brake pedal, the input assembly includes pedal input shaft 10, the spacing panel beating 19 of input shaft, bulb push rod 12 and push rod fork 15. The input shaft stopper metal plate 19 is fixedly attached to one side of the pedal input shaft 10, which is the left side in the structure of fig. 1, for example, by a snap ring. The input shaft limiting metal plate 19 is used for limiting the pedal input shaft (10) from over returning, so that the position of the pedal input shaft (10) is consistent each time. And, the input shaft spacing panel beating (19) can be designed with the structure of preventing rotating, makes the magnet fixed on it only can follow the subassembly that footboard input shaft (10) constitutes and move back and forth, can not rotate.
The pedal input shaft 10, the input shaft limiting metal plate 19, the ball head push rod 12 and the push rod fork 15 form a linkage mechanism. The pedal input shaft 10 and the ball plunger 12 form a linkage, for example, by riveting. A push rod fork 15 is fixedly mounted to one side of the ball push rod 12, the right side in the structure of fig. 1, by, for example, a metal locknut 14, thereby forming a linkage mechanism.
Ball screw-worm gear assembly
As shown in fig. 1, the integrated electronic hydraulic brake device of the present invention further includes a ball screw-worm gear assembly, which includes a ball screw 16, a ball screw nut 17, a worm wheel 7 and a worm 25.
The ball screw nut 17 rotates to drive the ball screw 16 to move in a translational manner, and the ball screw 16 slides in the limiting groove of the front housing 8 through a pin structure pressed on the ball screw 16, so that the ball screw 16 can only move in a translational manner and cannot rotate.
The ball screw 16 has a hollow center through which the pedal input shaft 10 of the input assembly passes. In one embodiment, the pedal input shaft 10 is guided by the guide structure of the hollow groove of the core of the ball screw 16 and the guide structure of the rear housing 9, so that it can slide stably.
In one embodiment, the ball screw assembly may be mounted between the front housing 8 and the rear housing 9 by left and right press-fit maintenance-free rolling bearings I6. The front case 8 and the rear case 9 may be fixedly connected by, for example, bolts.
The worm wheel 7 may be, for example, press-fitted onto the outer race of the ball screw nut 17 and connected by, for example, a flat key, whereby the worm wheel 7 and the ball screw nut 17 form a linked structure and rotate together. The worm wheel 7 is intermeshed with the worm 25. The worm 25 rotates to drive the worm wheel 7 to rotate, so that the functions of speed reduction and torque increase are realized.
In one embodiment, as shown in fig. 2, the worm 25 is press-fitted with a maintenance-free rolling bearing II24 and a maintenance-free rolling bearing III26 at both ends thereof, and is mounted in the worm mounting groove of the rear housing 9 via these bearings.
Furthermore, the motor 27 and the worm 25 can be driven, for example, by a coupling. In one embodiment, the motor 27 is a brushless dc motor.
Force output assembly
As shown in fig. 1, the integrated electronic hydraulic brake device of the present invention further includes a force-applying component, which includes an input slider 18, a feedback disk 20, a force-applying rod seat 21, a force-applying rod connecting shaft 22, and a force-applying rod head 23, which are connected to form a linkage component by riveting, for example. The feedback disk 20 functions to feed back force to the pedal in equal proportion, thereby achieving a better pedal feel.
In one embodiment, the output assembly further comprises a slider return spring 3, the slider return spring 3 being mounted between the master cylinder and the slider and acting as a spring force for returning the input slider 18 in case of a master cylinder failure, jamming and, in normal operation, as an auxiliary force for quick return of the input slider.
The ball screw 16 pushes the input slider 18 to move, and one side, for example, the right end surface of the input slider 18 is in contact with one side, for example, the left end surface of the ball screw 16, and is only in contact with but not fixedly connected to the ball screw. For example, when the ball screw 16 moves to the left, the input slider 18 is pushed to the left, and eventually the master cylinder 1 is compressed by the output rod 23 to build up pressure. However, when the ball screw 16 moves to the right, the input slider 18 is pushed back to the original position by the spring force of the slider return spring 3, which is compressed, for example, and the reaction force of the master cylinder 1 at the time of braking, rather than being brought back by the ball screw 16.
Control assembly
As shown in fig. 1, the integrated electronic hydraulic brake device of the present invention further includes a control assembly, which includes a controller 2, a magnet 4 and a displacement sensor chip 5.
The displacement sensor chip 5 is fixed to the upper portion of the input slider 18 of the output unit by, for example, a bracket, and is interlocked with the input slider 18. The magnet 4 is fixedly attached to an upper portion of an input shaft stopper metal plate 19 of the input unit, for example, and forms an interlocking unit with the input shaft stopper metal plate 19.
There is certain distance between the terminal surface of the spacing panel beating of input shaft 19 and input slider 18, leave the clearance between this input slider 18 and the spacing panel beating of this input shaft 19 promptly, thereby can guarantee in the moment of beginning the braking, drive magnet 4 linkage above when the spacing panel beating of this input shaft 19 moves to one side for example the left side, input slider 18 is in quiescent condition with the displacement sensor chip 5 that is fixed on it this moment, magnet 4 just has a relative displacement (first relative displacement) with displacement sensor chip 5 like this, this first relative displacement signal is gathered to displacement sensor chip 5 from this.
When the brake is released, the principle that the displacement sensor chip 5 acquires signals is the same, and relative displacement signals are acquired. When a driver releases the brake pedal to release the brake, the magnet 4 is driven by the input shaft limiting metal plate 19, the pedal input shaft 10, the ball head push rod 12 and the push rod fork 15 to move towards the other side, for example, the right side, the input slide block 18 and the displacement sensor chip 5 are in a static state within a short distance of the initial movement of the magnet 4, so that the relative displacement (second relative displacement) between the magnet 4 and the displacement sensor chip 5 is generated, and the displacement sensor chip 5 collects a relative displacement signal and sends the relative displacement signal to the controller 2. The controller 2 controls the motor 27 to rotate reversely through an algorithm, and drives the ball screw 16 to move towards the other side, such as the right side, sequentially through the worm 25, the worm wheel 7 and the ball screw nut 17.
The controller 2 is used for receiving the signal of the displacement sensor chip 5, processing the signal, and sending a corresponding instruction to the motor 27 to control the motor 27 to rotate. The displacement sensor chip 5 may be, for example, a hall displacement sensor chip. The controller 2 may be mounted to the front housing 8 by bolts, for example, to an upper portion of the front housing 8.
Pedal feedback assembly
In one embodiment, the integrated electronic hydraulic brake device of the present invention further comprises a pedal feedback assembly, wherein the pedal feedback assembly comprises a push rod spring seat 13 and a push rod spring 11. The push rod spring seat 13 is sleeved on the ball head push rod 12, and a push rod spring 11 is arranged between the rear shell 9 and the push rod spring seat 13, and mainly used for providing pedal feedback force.
The following is to explain the integrated electronic hydraulic braking method of the present invention, which includes the following steps:
step S1: the driver steps on the brake pedal, and pushes the push rod fork 15, the ball head push rod 12, the pedal input shaft 10, the input shaft limiting metal plate 19 and the magnet 4 which are connected with the brake pedal to move to one side, for example, to the left side.
Step S2: when the magnet 4 starts to move to one side, for example, to the left side from rest, the displacement sensor chip 5 is still in a rest state, at this time, the displacement sensor chip 5 and the magnet 4 have a certain relative displacement, the displacement sensor chip 5 sends a displacement signal to the controller 2, a control signal is output through arithmetic operation, and the motor 27 is controlled to start operation.
Step S3: the spindle of the motor 27 rotates to rotate the worm 25 connected thereto, the worm 25 rotates to rotate the worm wheel 7 engaged therewith, and the worm wheel 7 rotates to rotate the ball screw nut 17, so that the ball screw 16 moves to one side, for example, to the left.
Step S4: the ball screw 16 moves to one side, for example, the left side, and pushes the input slider 18 in contact with the ball screw to move to the same side, for example, the left side, the input slider 18 drives the feedback disk 20, the output rod seat 21, the output rod connecting shaft 22, and the output rod head 23 to move to the same side, and finally the output rod head 23 pushes the piston to the same side, for example, the left side to compress the brake master cylinder 1 to establish hydraulic pressure to realize braking.
Step S1-step S4 are performed in this order.
Step S5: when a driver releases the brake pedal to release the brake, the magnet 4 moves rightwards under the driving of the input shaft limiting metal plate 19, the pedal input shaft 10, the ball head push rod 12 and the push rod fork 15, the input slide block 18 is in a static state within a short distance of the initial movement of the magnet 4, and the displacement sensor chip 5 collects relative displacement signals and sends the signals to the controller 2. The controller 2 controls the motor 27 to rotate reversely through an algorithm, and drives the ball screw 16 to move to the other side, for example, the right side through the worm 25, the worm wheel 7 and the ball screw nut 17 in sequence. The input slide 18 returns to the initial position to the other side, for example, to the right side, under the combined action of, for example, the spring force of the slide return spring 3 and the hydraulic pressure of the master cylinder 1.
Step S: in addition, when the motor 27 or the controller 2 fails in an emergency, the driver steps on the brake pedal, and the brake pedal sequentially pushes the piston to compress the brake master cylinder 1 to establish hydraulic pressure to realize braking through the push rod fork 15, the ball push rod 12, the pedal input shaft 10 in the input assembly, and the feedback disc 20, the output rod seat 21, the output rod connecting shaft 22 and the output rod head 23 in the output assembly.
It is to be understood that the foregoing is by way of example only and is not intended as limiting the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. An integrated electronic hydraulic brake device, characterized in that:
which is integrated with a ball screw-worm gear assembly and a motor (27) for pushing a brake master cylinder (1) to build pressure, wherein the ball screw-worm gear assembly comprises a ball screw (16), a ball screw nut (17) which drives the ball screw (16) to translate in a rotating way, a worm wheel (7) which is linked with the ball screw nut (17) to rotate together, and a worm (25) which is meshed with the worm wheel (7),
the center of the ball screw (16) is a hollow structure, and the pedal input shaft (10) penetrates through the hollow structure and is guided by a guide structure of a hollow groove in the center of the ball screw (16).
2. The integrated electronic hydraulic brake device according to claim 1, further comprising a force output assembly, wherein the force output assembly comprises a linked input slider (18) and a force output rod head (23), the ball screw (16) pushes the input slider (18) to move, one side of the input slider (18) is in contact with one side of the ball screw (16) but is not fixedly connected, and the brake master cylinder (1) is compressed by the force output rod head (23) to realize pressure build-up.
3. The integrated electro-hydraulic brake device of claim 2, further comprising a control assembly comprising a controller (2), a magnet (4) and a displacement sensor chip (5); the controller (2) is used for receiving and processing signals of the displacement sensor chip (5), sending corresponding instructions to the motor (27) and controlling the motor (27) to rotate;
the displacement sensor chip (5) is linked with the input sliding block (18), the magnet (4) is linked with the input shaft limiting metal plate (19), and the input shaft limiting metal plate (19) is linked with the pedal input shaft (10); and the number of the first and second electrodes,
and a certain distance is reserved between the input shaft limiting metal plate (19) and the end surface of the input sliding block (18).
4. The integrated electro-hydraulic brake device of claim 3, wherein the displacement sensor chip (5) fixes an upper portion of the input slider (18) through a bracket so as to be interlocked with the input slider (18).
5. The integrated electronic hydraulic brake device according to claim 3, wherein the input shaft limiting sheet metal (19) is spaced from the end face of the input slider (18) by a distance such that:
at the moment of starting braking, when the magnet (4) and the input shaft limiting metal plate (19) are linked to one side, the displacement sensor chip (5) and the input sliding block (18) are in a static state, so that first relative displacement of the magnet (4) and the displacement sensor chip (5) is generated, and the displacement sensor chip (5) acquires a signal of the first relative displacement;
when the brake is released, the magnet (4) is driven by the input shaft limiting metal plate (19) to move to the other side, the input sliding block (18) and the displacement sensor chip (5) are in a static state within a small distance of the initial movement of the magnet (4), so that second relative displacement of the magnet (4) and the displacement sensor chip (5) is generated, and the displacement sensor chip (5) acquires a signal of the second relative displacement.
6. The integrated electrohydraulic brake device of claim 1, wherein in the ball screw-worm gear assembly, said ball screw (16) slides in a limit groove of the front housing (8) by means of a pin structure pressed thereon, thereby ensuring that the ball screw (16) can only translate but not rotate.
7. The integrated electro-hydraulic brake of claim 1, wherein the pedal input shaft (10) is further guided by a guide structure of the rear housing (9) in a ball screw-worm gear assembly.
8. The integrated electro-hydraulic brake of claim 1, wherein in a ball screw-worm gear assembly, the worm wheel (7) is press-fitted onto an outer race of a ball screw nut (17) and connected by a flat key, whereby the worm wheel (7) and the ball screw nut (17) form a linked structure so as to rotate together.
9. The integrated electro-hydraulic brake device according to claim 2, wherein the output assembly further comprises a slider return spring (3), and when the ball screw (16) moves in a direction opposite to a direction of pushing the input slider (18), the input slider (18) is pushed back to an original position by a spring force of the slider return spring (3) compressed at the time of braking and a reaction force of the master cylinder (1), instead of being brought back by the ball screw (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012375.0U CN211442279U (en) | 2019-11-20 | 2019-11-20 | Integrated electronic hydraulic brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012375.0U CN211442279U (en) | 2019-11-20 | 2019-11-20 | Integrated electronic hydraulic brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211442279U true CN211442279U (en) | 2020-09-08 |
Family
ID=72320099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922012375.0U Active CN211442279U (en) | 2019-11-20 | 2019-11-20 | Integrated electronic hydraulic brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211442279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696800A (en) * | 2019-11-20 | 2020-01-17 | 瑞立集团瑞安汽车零部件有限公司 | Integrated electronic hydraulic braking system and method |
-
2019
- 2019-11-20 CN CN201922012375.0U patent/CN211442279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696800A (en) * | 2019-11-20 | 2020-01-17 | 瑞立集团瑞安汽车零部件有限公司 | Integrated electronic hydraulic braking system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100417559C (en) | Force aid system for braking | |
| CN107804308B (en) | Brake master cylinder with parking and service braking functions and braking method thereof | |
| CN109624957B (en) | Integrated electric power-assisted brake system with novel coupling mode | |
| JP6145172B2 (en) | Booster and brake system | |
| CN108382381B (en) | Electric power-assisted braking device | |
| CN211995527U (en) | Electronic power-assisted brake actuator with pedal power feedback | |
| CN109878475B (en) | Brake booster | |
| CN111267812A (en) | Electronic power-assisted brake actuator with pedal power feedback | |
| CN112339733A (en) | Electric control brake booster for automobile | |
| CN211442279U (en) | Integrated electronic hydraulic brake device | |
| CN113511177A (en) | Transmission device of electronic hydraulic brake boosting booster mechanism | |
| CN110696800A (en) | Integrated electronic hydraulic braking system and method | |
| CN106915341B (en) | Brake device with auxiliary power assisting function | |
| CN211519479U (en) | Input slider and electronic hydraulic braking system integrated with same | |
| CN111301370A (en) | Electronic brake booster for automobile | |
| CN109910856A (en) | A kind of miniature electric passenger car electric-machine directly-driven brake-by-wire device and its brake control method | |
| CN209852288U (en) | Direct drive-by-wire brake device for motor of miniature electric passenger vehicle | |
| CN110696799A (en) | Input slider and electronic hydraulic braking system integrated with same | |
| CN212605065U (en) | Electric power-assisted brake system | |
| CN111605530B (en) | Working method of brake system | |
| CN211617669U (en) | Shell for brake booster | |
| CN209972428U (en) | Device for realizing automobile redundant braking by utilizing energy storage spring | |
| CN211308535U (en) | Integrated electronic hydraulic brake booster unit with planetary gear speed reducing mechanism | |
| CN209700628U (en) | A kind of brake booster | |
| CN101708721A (en) | Automobile disk-type braking method and device based on motor drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201126 Address after: No. 456, Binhai 4th Road, Wenzhou Economic Development Zone, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Ruili Automobile Technology Co.,Ltd. Address before: No. 2668, Development Zone Avenue, Ruian Economic Development Zone, Wenzhou City, Zhejiang Province Patentee before: Ruili Group Ruian Auto Parts Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240429 Address after: No. 456, Binhai 4th Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: WENZHOU RUILI KORMEE AUTOMOTIVE ELECTRONICS CO.,LTD. Country or region after: China Address before: No.2666, Development Zone Avenue, Ruian Economic Development Zone, Wenzhou, Zhejiang 325200 Patentee before: Wenzhou Ruili Automobile Technology Co.,Ltd. Country or region before: China |