CN110271525A - A kind of integrated form electromagnetism booster brake and its braking method - Google Patents
A kind of integrated form electromagnetism booster brake and its braking method Download PDFInfo
- Publication number
- CN110271525A CN110271525A CN201910684633.1A CN201910684633A CN110271525A CN 110271525 A CN110271525 A CN 110271525A CN 201910684633 A CN201910684633 A CN 201910684633A CN 110271525 A CN110271525 A CN 110271525A
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- tubular type
- input lever
- valve body
- brake
- booster
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 42
- 239000012530 fluid Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims 1
- 210000000981 epithelium Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 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 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- 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
- B60T13/74—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 electrical assistance or drive
- B60T13/745—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 electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
Abstract
The present invention provides a kind of integrated form electromagnetism booster brake and its braking method, including pedal connector, input lever, booster valve body, tubular type electromagnet, displacement sensor, electronic control unit and master cylinder；Pedal connector is of coupled connections with input lever；Displacement sensor, electronic control unit and tubular type electromagnet are respectively positioned in booster valve body, and the push rod of booster valve body inner connection tube formula electromagnet is protruded into the left end of input lever；Displacement sensor is fixedly installed in booster valve body, and input lever is installed on the measuring rod of displacement sensor；Displacement sensor connects electronic control unit, and electronic control unit connects power supply, and electronic control unit can control the input current size of tubular type electromagnet, and the magnetic field force that tubular type electromagnet generates can drive input lever to move to the direction of booster valve body；Input lever can transmit brake force to master cylinder.For the present invention by magnetic field force that electromagnet generates come power brake, power-assisted efficiency and stability are good.
Description
Technical field
The invention belongs to Brake for vehicle technical fields, and in particular to a kind of integrated form electromagnetism booster brake and its braking
Method.
Background technique
Current automobile-used brake booster mostly uses vacuum booster, and vacuum booster is to utilize vacuum (negative pressure) Lai Zengjia
Driver is applied to the component of power on pedal, is generally mounted between brake pedal and master cylinder.Vacuum booster is by hair
The vane-type vacuum pump of the below the throtlle valve inlet manifold of a motivation either additional camshaft actuated obtains vacuum servo
Negative pressure.This device has following two: 1. vacuum pumps and the negative pressure of engine air throttle rear inlet manifold offer have
Limit can only provide three to four brake power-assisteds, and brake number is more, and power-assisted is just smaller, needs vacuum pump to work repeatedly, with this
Meanwhile the increase of vacuum pump brings no small pressure to originally crowded enging cabin.2. vacuum pump and vacuum booster it
Between the pipeline that connects be easy gas leakage, bring security risk to routine use.3. epithelium supporting plate intensity is insufficient in vacuum booster,
There may be deformation when work, epithelium supporting plate can not normal return, will cause vehicle driving retardance under extreme case, lead to vehicle
It can not normally travel.Therefore, existing brake booster cannot be utilized by people well, limit market, practicability
It is bad.
Summary of the invention
The object of the present invention is to provide a kind of integrated form electromagnetism booster brake and its braking methods, and vacuum braking is replaced to help
Power device, the magnetic field force generated by electromagnet is come power brake, to improve power-assisted efficiency and stability.
The present invention provides the following technical solutions:
A kind of integrated form electromagnetism booster brake, including pedal connector, input lever, booster valve body, tubular type electromagnet,
Displacement sensor, electronic control unit and master cylinder；Brake pedal by pin shaft connect pedal connector, pedal connector with
The right end of input lever is of coupled connections；Displacement sensor, electronic control unit and tubular type electromagnet are respectively positioned in booster valve body, defeated
The push rod that tubular type electromagnet is fixedly connected in booster valve body is protruded into the left end for entering bar；Displacement sensor is fixedly installed in booster
In valve body, input lever is installed on the measuring rod of displacement sensor；Displacement sensor connects the input terminal of electronic control unit, electricity
The output end of sub-control unit connects power supply, and electronic control unit can control the input current size of tubular type electromagnet, tubular type electricity
The magnetic field force that magnet generates can drive input lever to move to the direction of booster valve body；Booster valve body connects master cylinder, defeated
Brake force can be transmitted to master cylinder by entering bar.
Preferably, the left end of tubular type electromagnet is equipped with tubing string, and tubing string is fixed on the left side wall of booster valve body, tubing string
On reset spring is installed, reset spring abuts the end of tubular type electromagnet after being compressed.
Preferably, booster valve body is equipped with cable grafting port, and booster valve inner, which is equipped with, is separately connected tubular type electricity
The cable of magnet, displacement sensor and electronic control unit.
Preferably, the right end of booster valve body and the junction of input lever are equipped with rubber sheath, and rubber sheath sealing connects
Connect the left side of booster valve body and input lever.
Preferably, rubber sheath is folding retractable guard.
A kind of braking method of integrated form electromagnetism booster brake, comprising the following steps:
(1) driver's brake pedal makes tubular type magnet spool be powered, and simultaneous displacement sensor acquires input lever
Stroke, displacement stroke signal is converted into displacement electric signal, is sent to electronic control unit；
(2) electronic control unit controls the input current size of tubular type electromagnet according to the displacement electric signal received, into
And control the electromagnetic force size of tubular type electromagnet generation；
(3) electromagnetic force that tubular type electromagnet generates applies pulling force to input lever, makes input lever to the direction of booster valve body
Movement；
(4) cotransformation in master cylinder is the promotion pressure of tubular type electromagnet generates electromagnetic force and input lever simultaneously
Brake fluid pressure realizes braking.
Preferably, the left end of the tubular type electromagnet is equipped with tubing string, is equipped with reset spring on the tubing string；Work as braking
After, driver loosens the brake, and tubular type electromagnet coil powers off at once, and electromagnetic force disappears, and input lever is in reset spring
Under the action of be restored to initial position.
Preferably, in step (1), under power blackout situation or when electronic control unit failure, driver steps on braking and steps on
Plate applies mechanical force to brake pedal, and mechanical force is transmitted to master cylinder, is converted by the input lever being coupled on brake pedal
Brake fluid pressure is braked.
The beneficial effects of the present invention are:
When brake pedal of the invention is operated, tubular type electromagnet, which is powered, generates electromagnetic force, displacement sensor acquisition braking
Pedal travel is simultaneously sent to electronic control unit, and electronic control unit calculates tubular type electricity according to the amount of displacement of brake pedal
Magnet generates current strength size required for magnetic field force, and the tubular type electromagnet after energization generates a certain size magnetic field, couples
Input lever on brake pedal is transported by the magnetic field force to booster valve body direction in magnetic field and to booster valve body direction
Dynamic, the input pressure of electromagnetic force and input lever that tubular type electromagnet generates cotransformation in master cylinder is brake fluid pressure, real
It now brakes, brake efficiency and stability are good.The present invention can replace vacuum booster and carry out brake boost, greatly reduce because making
It is evacuated the working time for generating negative pressure with vacuum pump, and optimizes the mechanical structure of brake boost mechanism, hence it is evident that reduces hardware
The occupied enging cabin space of brake boost mechanism is rationally utilized in quantity.
The present invention is enable to respond quickly the braking intention of driver, provides the power-assisted size selection under different driving modes
With shorter braking distance, it is suitable for adaptive cruise, automatic emergency brake etc. and assists driving mode, meet following use need
It asks.The present invention is under power blackout situation, it is straightforward to provide helpless dynamic braking, using safe flexible.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention；
In the figure, it is marked as 1. pedal connectors；2. input lever；3. booster valve body；4. tubular type electromagnet；5. displacement sensing
Device；6. electronic control unit；7. master cylinder；8. pin shaft；9. torsional spring；10. push rod；11. tubing string；12. reset spring；13. limit
Position circle；14. cable grafting port；15. rubber sheath.
Specific embodiment
As shown in Figure 1, a kind of integrated form electromagnetism booster brake, including pedal connector 1, input lever 2, booster valve body
3, tubular type electromagnet 4, displacement sensor 5, electronic control unit 6 and master cylinder 7.Brake pedal passes through rotatable pin shaft 8
Connect pedal connector 1 with torsional spring 9, wherein torsional spring 9 is installed on pin shaft 8, torsional spring 9 can braking corner to brake pedal carry out
It resets.Pedal connector 1 and the right end of input lever 2 are of coupled connections, and nut tightening torque between the two is 15.7-21.6N
M, input lever 2 are of coupled connections with pedal connector 1, can transmit road feel well, can be timely when braking system decline
It is perceived by driver.Displacement sensor 5, electronic control unit 6 and tubular type electromagnet 4 are respectively positioned in booster valve body 3, tubular type electricity
Magnet 4 is putter type electromagnet, and under free state, push rod 10 does not contact the fixed core in tubular type electromagnet, and tubular type electromagnet is not
It is powered.The push rod 10 that tubular type electromagnet is fixedly connected in booster valve body is protruded into the left end of input lever 2, works as brake pedal
When, push rod 10, which contacts fixed core, makes tubular type electromagnet 4 be powered and generate magnetic field force.Displacement sensor 5 is fixedly installed in booster
In valve body 3, input lever 2 is movably arranged on the measuring rod of displacement sensor 5, and displacement sensor 5 connects electronic control unit 6
Input terminal, displacement sensor 5 acquired by input lever 2 and brake-pedal travel and is sent to electronic control unit 6, be controlled electronically
The output end of unit 6 connects power supply, controls the input current size of tubular type electromagnet 4, electronic control unit 6 is according to brake pedal
Amount of displacement calculate tubular type electromagnet 4 generate magnetic field force required for current strength size, and then change tubular type electromagnet
Magnetic field force reduce input current intensity if displacement is big, if displacement is small, increase input current intensity.Input
Bar 2 is moved by the magnetic field force to 3 direction of booster valve body and to 3 direction of booster valve body, the connection braking master of booster valve body 3
Cylinder 7, input lever 2 can transmit brake force to master cylinder 7.The brake force of electromagnetic force and input lever 2 that tubular type electromagnet 4 generates exists
Cotransformation is brake fluid pressure in master cylinder 7, realizes braking.
The left end of tubular type electromagnet 4 is welded with tubing string 11, and tubing string 11 is fixedly installed in the left side wall of booster valve body 3
On, reset spring 12 is installed, the left end of reset spring 12 is limited by the spacing collar 13 on tubing string 11, multiple when braking on tubing string 11
Position spring 12 is abutted the left part of tubular type electromagnet 4 by compression.When end of braking, driver loosens the brake, tubular type
Electromagnet 4 powers off at once, and electromagnetic force disappears, and input lever 2 is restored to initial position under the action of reset spring 12.
Booster valve body 3 is equipped with cable grafting port 14, is equipped with inside booster valve body 3 and is separately connected tubular type electromagnet
4, the cable of displacement sensor 5 and electronic control unit 6, the end of cable are integrated on cable grafting port 14, pass through line
Cable and cable grafting port 14 connect external power cord.
The right end of booster valve body 3 and the junction of input lever 2 are equipped with rubber sheath 15, and rubber sheath 15 is tightly connected
The left side of booster valve body 3 and input lever 2.Rubber sheath 15 is folding retractable guard.Rubber sheath 15 can be with defeated
Enter bar 2 to move horizontally and stretch, guarantees the sealed connection between input lever 2 and booster valve body 3, and play to input lever 2
Buffering and anticollision effect.
Braking method of the invention is as follows:
1. under normal condition, using power brake mode:
(1) driver's brake pedal makes the coil of tubular type electromagnet 4 be powered, the acquisition input of simultaneous displacement sensor 5
Displacement stroke signal is converted to displacement electric signal, is sent to electronic control unit 6 by the stroke of bar 2；
(2) electronic control unit 6 controls the input current size of tubular type electromagnet 4 according to the displacement electric signal received,
And then control the electromagnetic force size that tubular type electromagnet 4 generates；
(3) electromagnetic force that tubular type electromagnet 4 generates applies pulling force to input lever 2, makes input lever 2 to booster valve body 3
Direction movement；
(4) thrust that the electromagnetic force and input lever 2 that tubular type electromagnet 4 generates move turns in master cylinder 7 jointly simultaneously
Brake fluid pressure is turned to, realizes braking.
(5) after end of braking, driver loosens the brake, and the coil in tubular type electromagnet 4 powers off at once, electromagnetic force
It disappears, input lever 2 is restored to initial position under the action of reset spring 12.
2. under power blackout situation or when electronic control unit failure, automatically switching to following non helping hand braking mode:
Driver's brake pedal applies mechanical force to brake pedal, is coupled in input lever 2 on brake pedal for machine
Tool power is transmitted to master cylinder 7, is converted into brake fluid pressure, is braked.Reset spring 12 is multiple to input lever 2 after end of braking
Position.
Two kinds of operating modes automatically switch, and do not conflict mutually.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of integrated form electromagnetism booster brake, which is characterized in that including pedal connector, input lever, booster valve body, pipe
Formula electromagnet, displacement sensor, electronic control unit and master cylinder；Described in the brake pedal is connected with torsional spring by pin shaft
Pedal connector, the pedal connector and the right end of the input lever are of coupled connections；Institute's displacement sensors, the electronics control
Unit processed and the tubular type electromagnet are respectively positioned in the booster valve body, and the booster valve is protruded into the left end of the input lever
It is fixedly connected with the push rod of the tubular type electromagnet in vivo；Institute's displacement sensors are fixedly installed in the booster valve body, institute
Input lever is stated to be movably arranged on the measuring rod of institute's displacement sensors；It is single that institute's displacement sensors connect the electronic control
The input terminal of member, the output end of the electronic control unit connect power supply, and the electronic control unit can control the tubular type electricity
The input current size of magnet, the magnetic field force that the tubular type electromagnet generates can drive the input lever to the booster valve body
Direction movement；The booster valve body connects the master cylinder, and the input lever can be transmitted to the master cylinder and be braked
Power.
2. integrated form electromagnetism booster brake according to claim 1, which is characterized in that the left end of the tubular type electromagnet
Tubing string is installed, the tubing string is fixed on the side wall of the booster valve body, and reset spring is equipped on the tubing string, described
Reset spring abuts the end of the tubular type electromagnet after being compressed.
3. integrated form electromagnetism booster brake according to claim 2, which is characterized in that the booster valve body is equipped with
Cable grafting port, the booster valve inner are equipped with and are separately connected the tubular type electromagnet, institute's displacement sensors and institute
State the cable of electronic control unit.
4. integrated form electromagnetism booster brake according to claim 2, which is characterized in that the right end of the booster valve body
Rubber sheath is installed with the junction of the input lever, the rubber sheath be tightly connected the booster valve body with it is described defeated
Enter the left side of bar.
5. integrated form electromagnetism booster brake according to claim 4, which is characterized in that the rubber sheath is collapsible
Retractable guard.
6. a kind of braking method of integrated form electromagnetism booster brake as described in claim 1, which is characterized in that including following
Step:
(1) driver's brake pedal makes the tubular type magnet spool be powered, while institute's displacement sensors acquire institute
Displacement stroke signal is converted to displacement electric signal, is sent to the electronic control unit by the stroke for stating input lever；
(2) input current that the electronic control unit controls the tubular type electromagnet according to the displacement electric signal received is big
It is small, and then control the electromagnetic force size that the tubular type electromagnet generates；
(3) electromagnetic force that the tubular type electromagnet generates applies pulling force to the input lever, makes the input lever to the power-assisted
The direction of device valve body moves；
(4) thrust of the tubular type electromagnet generates electromagnetic force and input lever movement is total in the master cylinder simultaneously
With brake fluid pressure is converted into, braking is realized.
7. the braking method of integrated form electromagnetism booster brake according to claim 6, which is characterized in that the tubular type electricity
The left end of magnet is equipped with tubing string, is equipped with reset spring on the tubing string；After end of braking, driver's take-off the brake is stepped on
Plate, the tubular type magnet spool power off at once, and electromagnetic force disappears, and the input lever is extensive under the action of the reset spring
Initial position is arrived again.
8. the braking method of integrated form electromagnetism booster brake according to claim 7, which is characterized in that in step (1)
In, under power blackout situation or when the electronic control unit failure, driver's brake pedal applies brake pedal mechanical
Mechanical force is transmitted to the master cylinder, is converted into brake fluid pressure by power, the input lever being coupled on brake pedal, is carried out
Braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684633.1A CN110271525B (en) | 2019-07-26 | Integrated electromagnetic power-assisted brake and braking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684633.1A CN110271525B (en) | 2019-07-26 | Integrated electromagnetic power-assisted brake and braking method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110271525A true CN110271525A (en) | 2019-09-24 |
| CN110271525B CN110271525B (en) | 2024-05-14 |
Family
ID=
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61115764A (en) * | 1984-11-10 | 1986-06-03 | Mazda Motor Corp | Electromagnetic servo brake system for automobile |
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN203958111U (en) * | 2014-06-10 | 2014-11-26 | 重庆示展科技发展中心 | Arm-type helping pedal |
| CN203958112U (en) * | 2014-06-10 | 2014-11-26 | 重庆示展科技发展中心 | Arm-type autoamtic boosting pedal |
| CN203996176U (en) * | 2014-06-10 | 2014-12-10 | 徐刚 | Automatic power booster pedal |
| CN204605541U (en) * | 2015-03-27 | 2015-09-02 | 吉林大学 | There is the electric booster braking system of friction braking and the full decoupled function of regenerative brake |
| CN210502648U (en) * | 2019-07-26 | 2020-05-12 | 国唐汽车有限公司 | Integrated electromagnetic power-assisted brake |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61115764A (en) * | 1984-11-10 | 1986-06-03 | Mazda Motor Corp | Electromagnetic servo brake system for automobile |
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN203958111U (en) * | 2014-06-10 | 2014-11-26 | 重庆示展科技发展中心 | Arm-type helping pedal |
| CN203958112U (en) * | 2014-06-10 | 2014-11-26 | 重庆示展科技发展中心 | Arm-type autoamtic boosting pedal |
| CN203996176U (en) * | 2014-06-10 | 2014-12-10 | 徐刚 | Automatic power booster pedal |
| CN204605541U (en) * | 2015-03-27 | 2015-09-02 | 吉林大学 | There is the electric booster braking system of friction braking and the full decoupled function of regenerative brake |
| CN210502648U (en) * | 2019-07-26 | 2020-05-12 | 国唐汽车有限公司 | Integrated electromagnetic power-assisted brake |
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