CN104097619A - Braking method and device of vehicle - Google Patents
Braking method and device of vehicle Download PDFInfo
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- CN104097619A CN104097619A CN201410361472.XA CN201410361472A CN104097619A CN 104097619 A CN104097619 A CN 104097619A CN 201410361472 A CN201410361472 A CN 201410361472A CN 104097619 A CN104097619 A CN 104097619A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 244000144983 clutch Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a method and device for baking through inertia of a vehicle. The device is characterized in that a switching part comprising a running clutch C (run) 4, a braking clutch C (brake) 5 and a latch ML16 is added to a transmission system; the device comprises gears 15, 16, 17, 18 and 19, overturning clutches C(FR1)7 and C(FR2)8, flywheel energy storages FES11 and ML(2)9, an ECU (Electronic Control Unit) control end 22 and other braking parts. According to the braking method and device, the engine torque is broken away, the inertia of the vehicle is used as a power source that is subjected to repeated switching, transferring, reduction, storage, releasing and reversing and then added to the transmission system in order to overcome and counteract the original inertia of the vehicle, and as a result, the inertia of the vehicle is smaller and smaller and lost at last; the inertia-control-inertia type self-braking method and device are brought; when in braking, the dragging slipping, side slipping, offsetting and drifting are avoided; in addition, the braking capacity is high, and the energy saving effect is great.
Description
Technical field the present invention relates to a kind of brake system of vehicle, particularly relates to a kind of method and device thereof that utilizes vehicle inertia braking.
The existing vehicle braking method of background technology comprises friction force and air resistance braking method, dynamic brake and the regenerative brake of passive type wheel.
The friction force braking of passive type is to step on brake pedal, master brake cylinder extrudes high pressure oil, promote wheelcylinder piston, brake plate is rubbed on brake wheel, thereby reach the braking effect that stops vehicle wheel rotation, this braking shortcoming is inertia energy to be become to frictional heat energy abandon, and is prone to drawing brakes, sideslip, sideslip, whipping phenomenon.
Dynamic brake is electrical motor to be changed into electrical generator use, and the kinetic energy of vehicle is changed into electric energy, and dynamic brake conventionally, only the electricity producing, changes into useless heat through resistance and releases, and shortcoming is to waste energy.
Regenerative brake is that electric power is stored, or sees off by electrical network, and recirculation is used, and this braking equipment needed thereby is many, and technical sophistication, cost are high.
Several brakings are all in the braking of not adding the reversing sense power of inertia above, but directly to inertia braking, so braking force is little, braking time is long.
The present invention is not that to check wheel motionless, and utilizes the inertia of vehicle itself to make driving system apply opposing torque, and makes car brakeing.
Summary of the invention the object of this invention is to provide a kind of energy that can make full use of vehicle inertia, have advantages of that again initiatively cunning, sideslip, sideslip, whipping phenomenon are not dragged in braking, and braking force is strong, and the time is short.
For reaching above-mentioned advantage, the present invention adds at the arbitrary place of vehicle drive system braking method and device and the control part thereof mainly being switched by operation and braking in fact; Inertia energy shifts, absorbs storage, braking and control part thereof reverse, that discharge form, a kind of disconnection motor torque is provided, utilize vehicle inertia for propulsion source, through repeatedly recycling flywheel energy storage FES, switch, transmit, store, discharge, oppositely after, add to again in driving system, overcome, offset the original inertia of vehicle, make vehicle inertia more and more less, finally lose inertia, self braking method and device of this " being used to be used to system ".
Because the inertia energy that utilizes vehicle is originated for braking energy, thereby saved the energy; Owing to having adopted inertia after transmitting, shift, cut down original vehicle inertia again; On the other hand, transmit, absorb the inertia torque of storage after oppositely, be used for again offsetting original remaining moment of inertia, this active braking, plugging can make the friction force between wheel and ground reduce gradually, and friction force when sliding is dragged in the brake of crossing that can not be greater than passive when braking of wheel friction force formula, effectively avoided the generation of drawing brakes, sideslip, sideslip, whipping phenomenon.
The generation that the free-wheel clutch that the present invention also can separately add driving system is crossed reversing phenomenon when preventing from braking.
Accompanying drawing explanation
Fig. 1 is principle of work block diagram of the present invention.
Fig. 2 is that the present invention moves power-transfer clutch C
fortunewith brake coupling C
systemswitching part and inertia energy Deng composition shift, one of combination of the brake portion that absorption is stored, reverse, release forms fundamental diagram.
Fig. 3～Fig. 5 is that the present invention moves and the switching part fundamental diagram of braking.
Fig. 6～Figure 10 be inertia energy of the present invention shift, absorb store, oppositely, the brake portion fundamental diagram that discharges.
In figure:
1, driving system 2, driving system
3, wheel 4, operation power-transfer clutch-C
fortune
5, brake coupling-C
system
6, operation power-transfer clutch-C
fortunewith brake coupling-C
systembetween control locking mechanism ML
1
7, upset power-transfer clutch-C
fR18, upset power-transfer clutch-C
fR2
9, upset power-transfer clutch C
fR1with C
fR2between upset locking mechanism ML
2
10, reverse gear group 11, flywheel energy storage-FES
12, operation clutch output shaft 13, driving system input shaft
14, inertia braking power-transfer clutch C
systemoutput shaft 15, brake coupling C
systeminput shaft (gear)
16, upset power-transfer clutch C
fR1input and output shaft 17, upset power-transfer clutch C
fR2input and output shaft
18, gear 19, gear
20, gear 21, brake pedal
22, ECU control end 23, gear
Related C in specific embodiment accompanying drawing
fortune4, C
system5, C
fR27, C
fR28 are respectively various power-transfer clutchs; FES11 is various energy accumulation device for fly wheel, can be single flywheel, also one group of unitized construction that can improve gear cluster and the flywheel of flywheel speed, and these are all prior arts, repeat no more.
In Fig. 1, vehicle normally moves power path and is: driving engine forward → driving system 1 forward → operation power-transfer clutch 4 forwards → driving system 2 forwards → wheel 3 forwards.
Car brakeing state power transmission path is: when need are braked, step on brake pedal 21, because of locking mechanism ML
16 lockings, operation power-transfer clutch C
fortune4 disconnect → cut-outs make wheel 3 continue forward → driving systems 2 because of vehicle inertia forward → power-transfer clutch C from the inertia of the propulsion source → vehicle of driving engine
system5 joints → as upset locking mechanism ML
29 ECU control end 22 sends inertia energy and reprints instruction time → C
fR17 inertia forward torques after connecting → reprinting through reverse gear group 10 oppositely → by flywheel energy storage FES11 energy storage → now because of upset locking mechanism ML
29 lockings, C
fR28 disconnections → from C
systemthe inertia energy of 5 shuntings is stored up by flywheel energy storage (FES) 11 continuously; When upset instruction is sent in control mechanism 22 gaps, C
fR17 disconnect, C
fR28 connections → from C
system5 inertia energy no longer passes through C
fR17 shift energy to flywheel energy storage (FES) 11, but the energy that the flywheel energy storage (FES) 11 after reverse by reverse gear group 10 is stored passes through C
fR28, C
system5 are added into the energy of opposing torque, plugging to driving system.When the opposing torque depleted of energy of flywheel energy storage, when the positive-directional and inertial energy of driving system still exists, force brake coupling C
system5 forward → upset power-transfer clutch C
fR28 still connect and forward → to the inertia energy of flywheel energy storage FES11 input forward torque → because of upset power-transfer clutch C
fR17 now lockings disconnect, so now from C
fR28 inertia energy is stored up by flywheel energy storage (FES) 11 continuously, now, for second step shifts the inertia energy consuming in driving system, makes reverse gear group at C
fR1the opposing torque energy of 7 ends can not be exported.
When ECU control end 22 sends after upset instruction, C
fR17 connect, C
fR28 disconnect → by the forward inertia energy that flywheel energy storage (FES) 11 stores before, through reverse gear group 10 oppositely after → C through just having connected again
fR17, and C
system5 to driving system 2, discharge that flywheels store through reverse opposing torque energy, offset the positive-directional and inertial energy in driving system 2, the inertia energy in driving system is further reduced.After the energy of FES11 flywheel storage releases, stall, again reversion ... like this by ECU control end 22, control C
fR17 and C
fR28 constantly alternately upsets, the continuous energy storage of flywheel energy storage (FES) 11, exoergic, forward, reversion, repeatedly shift inertia energy in driving system and by the inertia energy shifting oppositely after, offset the inertia energy of forward torque, until finally eliminate inertia energy completely, and make car brakeing, parking.
While being provided with anti-braking in driving system, cross reversing gear, as at brake coupling C
system5 are provided with free-wheel clutch between wheel 3, cross the generation of reversing phenomenon in the time of can effectively preventing from braking, and this is prior art, no longer repeat.
In Fig. 2, the ML being controlled by brake pedal 21
16 couples of operation power-transfer clutch C
fortune4 and brake coupling C
system5 realize locking, operation power-transfer clutch C
fortune4 are added between driving system 1 output shaft gear 12, the internal tooth of gear 12 gear rings meshes with inside with the external tooth of gear 13, gear 14 respectively, the other end of gear 13 is axially connected with driving system afterwards 2, and driving system 2 is until be connected the other end of gear 14 and brake coupling C with wheel
system5 axially connect, C
system5 the other end is axially connected with gear 15, and the internal tooth of gear 15 gear rings meshes with inside with the external tooth of gear 16, gear 17 respectively, the other end of gear 16 and upset power-transfer clutch C
fR1one end of 7 axially connects, C
fR17 the other end is connected with gear 18, forms reverse gear group 10 here by gear 18 and gear 19, the other end of gear 17 and upset power-transfer clutch C
fR2one end of 8 axially connects, C
fR28 the other end is axially connected with one end of flywheel energy storage (FES) 11, and the other end of flywheel energy storage (FES) 11 is axially connected with one end of gear 19, gear 19 and the reverse external toothing of gear 18.
Its principle of work is: when brake pedal 21 is stepped in needs braking, and locking mechanism ML
1effect → operation power-transfer clutch G of 6
fortune4 disconnection → brake coupling C
system5 connect in braking mode → driving system 2 by gear 13, gear 12, gear 14, brake coupling C
system5, gear 15, upset power-transfer clutch C
fR17, gear 18, gear 19, to flywheel energy storage FES11, transmit and shift inertia energy, as locking mechanism ML
29 ECU control end 22 sends while controlling upset, C
fR17 disconnect, C
fR28 connections locking → from C
system5 inertia energy is at C
fR17 places disconnect, and no longer to flywheel energy storage (FES) 11, shift energy, but inertia is stored in to the storage counter torque energy (now flywheel 11 is for reversing) in flywheel energy storage (FES) 11 after oppositely, pass through C
fR28 → gear, 17 → gear, 15 → C
system5 → gear, 14 → gear, 12 → gear 13 is added in driving system, carries out plugging.
When the opposing torque depleted of energy of flywheel energy storage (FES) 11, if the positive-directional and inertial energy of driving system still exists, and force brake coupling C
system5 become forward, upset power-transfer clutch C
fR28 still connect and forward → to the inertia energy of flywheel energy storage (FES) 11 jump forward torques → because of upset power-transfer clutch C
fR17 now lockings and disconnecting, so now from C
fR28 forward torque inertia energy is stored up by flywheel energy storage (FES) 11 again continuously, and now flywheel is forward, and for second step shifts the inertia energy consuming in driving system 2, now reverse gear group 10 is at C
fR1the opposing torque energy of 7 ends can not be exported, can only be by positive-directional and inertial torque energy savings in flywheel energy storage (FES) 11.
Again when braking to a certain extent after, locking mechanism NL
29 ECU control mechanism 22 sends after upset instruction, C
fR17 connect, simultaneously C
fR8disconnect → by the forward inertia energy that flywheel energy storage (FES) 11 stores before, through gear 19 → gear 18 → C
fR7→ gear 16 → gear 15 → C
system 5the energy of the opposing torque of the reverse gear group 10 forming through reverse external meshing tooth 19, gear 18 that → gear 14 → gear 12 → gear 13 release FES11 flywheels store, offset the positive-directional and inertial energy in driving system 2, the inertia energy in driving system 2 is further reduced.After the energy of FES11 flywheel storage releases, flywheel stall, again reversion ...
By ECU control end 22, control like this C of mutual locking
fR7and C
fR8constantly upset, the continuous energy storage of flywheel energy storage (FES) 11, exoergic; Constantly forward, reversion, shift inertia energy repeatedly, reverse again after storage, to driving system 2 releasing reverse energy, the forward torque energy of inertia in counteracting, and car brakeing is stopped.
In Fig. 3, between driving system 1 and driving system 2, add shifter part: operation power-transfer clutch C
fortunethe center shaft of 4 output shaft gear 12 docks with the center shaft of gear 13, and gear 13 can save here, be directly connected with driving system 2, and C
fortune4 output shaft gear 12 internally toothed annuluss and the external tooth of gear 14 are with inwardly engagement, the other end of gear 14 and brake coupling C
system5 connect, C
fortune4 and C
system5 by locking mechanism ML
16 realize mutual locking, this locking mechanism ML
16 are controlled by brake pedal 21.Its principle of work illustrates similar with Fig. 2, do not repeat.
In Fig. 4, between driving system 1 and driving system 2, add shifter part, operation power-transfer clutch C
fortune4 output shaft 12 is coaxially connected with gear 13, and gear 13 is coaxially connected with driving system 2, gear 13 and the reverse external toothing of gear 23, gear 23 again with the reverse external toothing of gear 14, gear 14 and brake coupling C
system5 axially connect, C
fortune4 and C
system5 by locking mechanism ML
16 realize mutual locking, this locking mechanism ML
16 are controlled by brake pedal 21.Its principle of work is the same similar, does not repeat.
In Fig. 5, between driving system 1 and driving system 2, add shifter part, operation power-transfer clutch C
fortune4 output shaft 12 is coaxially connected with gear 13, and gear 13 is coaxially connected with driving system 2, and driving system 2 is connected with wheel 3, gear 13 again with the reverse external toothing of gear 14 external tooth, gear 14 and C
system5 are coaxially connected, C
fortune4 and C
system5 by locking mechanism ML
16 realize mutual locking, this locking mechanism ML
16 are controlled by brake pedal 21.Its principle of work is the same similar, does not repeat.
In Fig. 6, brake coupling C
system5 the other end is axially connected with the center shaft of gear 15, and the external tooth of the internally toothed annulus of gear 15 and gear 16 meshes with inside, gear 16 and upset power-transfer clutch C
fR17 axially connect, C
fR17 the other end is axially connected with gear 18, gear 18 and the anti-phase external toothing of gear 19, and gear 19 is axially connected with flywheel energy storage FES11, the FES11 other end and upset power-transfer clutch C
fR28 axially connect, C
fR28 the other end is coaxially connected with gear 17, and the internally toothed annulus of the external tooth of gear 17 and gear 15 is with inwardly engagement.22 of ECU controls ML
29, ML
29 couples of C
fR28 realize upset locking, and its principle of work is the same similar, does not repeat.
In Fig. 7, brake coupling C
system5 the other end is coaxially connected with the center shaft of gear 15, and the center shaft other end of gear 15 is axially connected with one end of gear 16, the other end of gear 16 and upset power-transfer clutch C
fR17 axially connect, C
fR17 the other end is coaxially connected with gear 18, gear 18 and the anti-phase external toothing of gear 19, and gear 19 other ends are axially connected with flywheel energy storage FES11, the FES11 other end and upset power-transfer clutch C
fR28 axially connect, C
fR28 the other end is coaxially connected with gear 17, and the internally toothed annulus of the external tooth of gear 17 and gear 15 is with inwardly engagement.22 of ECU controls ML
29, ML
29 couples of C
fR17, C
fR28 realize upset locking, and its principle of work is the same similar, does not repeat.
In Fig. 8, brake coupling C
system5 the other end is coaxially connected with one end of gear 15, gear 15 and the reverse external toothing of gear 16, gear 16 and upset power-transfer clutch C
fR17 axially connect, C
fR17 the other end is coaxially connected with gear 18, gear 18 and the reverse external toothing of gear 19, and gear 19 is coaxially connected with flywheel energy storage FES11, the other end of FES11 and upset power-transfer clutch C
fR28 coaxially connect, C
fR28 the other end is coaxially connected with gear 17, gear 17 and the reverse external toothing of gear 15.22 of ECU controls ML
29, ML
29 couples of C
fR17, C
fR28 realize upset locking, and its principle of work is the same similar, does not repeat.
In Fig. 9, brake coupling C
system5 the other end is coaxially connected with gear 15, and the other end of gear 15 is coaxially connected with gear 16, the other end of gear 16 and upset power-transfer clutch C
fR17 axially connect, C
fR17 the other end is axially connected with gear 18, and the external tooth of the internally toothed annulus of gear 18 and gear 19 is with inwardly engagement, and the other end of gear 19 is axially connected with the other end of flywheel energy storage FES11, the other end of FES11 and upset power-transfer clutch C
fR2one end of 8 axially connects, C
fR28 the other end is axially connected with gear 17, and gear 17 oppositely meshes with gear 16.22 of ECU controls ML
29, ML
29 couples of C
fR17, C
fR28 realize upset locking, and its principle of work is the same similar, does not repeat.
In Figure 10, brake coupling C
system5 the other end is axially connected with gear 15, and gear 15 is coaxially connected with gear 16, the other end of gear 16 and upset power-transfer clutch C
fR17 axially join, C
fR17 the other end is coaxially connected with gear 18, gear 18 and the reverse external toothing of gear 20, gear 20 again with the reverse external toothing of gear 19, gear 19 is axially connected with flywheel energy storage FES11, the other end of FES11 and the power-transfer clutch C that overturns
fR28 axially connect, C
fR28 the other end is axially connected with gear 17, gear 17 and the reverse external toothing of gear 16.22 ends of ECU are controlled ML
29, ML
29 couples of C
fR17, C
fR28 realize upset locking, and its principle of work is the same similar, does not repeat.
The present invention includes Fig. 3, Fig. 4, Fig. 5 illustrated by operation power-transfer clutch C
fortune4 with brake coupling C
system5 and locking mechanism ML
16, the switching part that control pedal 21 forms; And comprise Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 etc. illustrated by inertia energy shift, absorb, store, oppositely, releasing brake part the braking operating part and the control part ML thereof that form
29,22 brake portions that form.The structure being formed by similar this switching part and brake portion institute combination in any all, within protection domain of the present invention, does not just enumerate here.
Claims (6)
1. a vehicle brake control method, is characterized in that: at arbitrary place of vehicle drive system, add by operation power-transfer clutch C
fortune(4) with brake coupling C
system(5), by brake pedal (21), control locking mechanism ML
1and the switching part that forms of gear (12), (13), (14) or (23) (6); During braking, by brake pedal (21), control locking ML
1(6) utilize C
fortune(4) cut off motor torque, C
system(5) connect brake portion; Brake portion comprises that the energy being comprised of gear (15), (16), (17), (18), (19) or (20) shifts, oppositely, discharge, brake, by flywheel energy storage FES (11), store and release energy, by ECU (Electrical Control Unit) ECU (22) end command M L
2(9) control upset power-transfer clutch C
fR2(7), C
fR2(8) upset is switched and locking; It is propulsion source at the inertia of driving system that switching part and brake portion cooperation utilize vehicle, through one or many repeatedly switch, shift, cut down, store, discharge, oppositely after, overcome, offset the original inertia energy of vehicle, self braking method of this " being used to be used to system ".
2. implement the claims the device of the vehicle brake control method described in 1.
3. the switching part installing according to claim 2, is characterized in that including operation power-transfer clutch C
fortune(4) brake coupling C
system(5), brake pedal (21) and control locking ML thereof
1and the device that forms of gear (12), (13), (14) or (23) (6).
4. the brake portion installing according to claim 2, is characterized in that comprising flywheel energy storage FES (11) device with energy storage and release function.
5. install according to claim 2 brake portion, it is characterized in that comprising have energy shift, oppositely, release, the transmission gear (15) of braking function, (16), (17), (18), (19) or (20).
6. the brake portion installing according to claim 2, is characterized in that comprising the ECU (22) with control action, upset mutually locking mechanism ML
2, and upset power-transfer clutch C (9)
fR1(7), C
fR2(8) realize the device of upset switching and locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361472.XA CN104097619B (en) | 2014-07-22 | 2014-07-22 | The braking method and its device of a kind of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361472.XA CN104097619B (en) | 2014-07-22 | 2014-07-22 | The braking method and its device of a kind of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104097619A true CN104097619A (en) | 2014-10-15 |
| CN104097619B CN104097619B (en) | 2017-06-13 |
Family
ID=51666281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410361472.XA Active CN104097619B (en) | 2014-07-22 | 2014-07-22 | The braking method and its device of a kind of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104097619B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604425A (en) * | 1983-06-21 | 1985-01-10 | Kanae Kaneda | Regenerative brake for vehicle |
| US4679646A (en) * | 1983-03-15 | 1987-07-14 | Leyland Vehicles Limited | Driveline for regenerative braking |
| US4994003A (en) * | 1987-06-04 | 1991-02-19 | Anchor Tech, Inc. | Apparatus using aerodynamic rotors for exerting a braking torque upon a rotating shaft |
| GB2386879A (en) * | 2002-03-25 | 2003-10-01 | Ford Motor Co | Regenerative braking system for hybrid electric vehicle |
| CN101654098A (en) * | 2008-08-18 | 2010-02-24 | 封永记 | Energy-saving device of transport facility |
| CN103010188A (en) * | 2012-12-17 | 2013-04-03 | 李勇 | Auxiliary braking and auxiliary start-up system for automobile |
-
2014
- 2014-07-22 CN CN201410361472.XA patent/CN104097619B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679646A (en) * | 1983-03-15 | 1987-07-14 | Leyland Vehicles Limited | Driveline for regenerative braking |
| JPS604425A (en) * | 1983-06-21 | 1985-01-10 | Kanae Kaneda | Regenerative brake for vehicle |
| US4994003A (en) * | 1987-06-04 | 1991-02-19 | Anchor Tech, Inc. | Apparatus using aerodynamic rotors for exerting a braking torque upon a rotating shaft |
| GB2386879A (en) * | 2002-03-25 | 2003-10-01 | Ford Motor Co | Regenerative braking system for hybrid electric vehicle |
| CN101654098A (en) * | 2008-08-18 | 2010-02-24 | 封永记 | Energy-saving device of transport facility |
| CN103010188A (en) * | 2012-12-17 | 2013-04-03 | 李勇 | Auxiliary braking and auxiliary start-up system for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104097619B (en) | 2017-06-13 |
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Effective date of registration: 20201106 Address after: 226000 No.20 Fuxing Road, Yuelai Town, Haimen City, Nantong City, Jiangsu Province Patentee after: NANTONG YOUYUAN ART PATTERN DESIGN Co.,Ltd. Address before: 225722 Jiangsu city of Xinghua Province Zhang Guo Zhen Liu Dong Cun Yang Jia Xiang, No. 23 Patentee before: Yang Fuyun |
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