CN109004727B - Shock absorber with vibration energy recovery function - Google Patents
Shock absorber with vibration energy recovery function Download PDFInfo
- Publication number
- CN109004727B CN109004727B CN201810876420.4A CN201810876420A CN109004727B CN 109004727 B CN109004727 B CN 109004727B CN 201810876420 A CN201810876420 A CN 201810876420A CN 109004727 B CN109004727 B CN 109004727B
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- CN
- China
- Prior art keywords
- oil
- port
- valve block
- downstream valve
- piston
- 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.)
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- 230000035939 shock Effects 0.000 title claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 85
- 230000008901 benefit Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Reciprocating Pumps (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a shock absorber with a vibration energy recovery function, a plunger cylinder is arranged between an axle and a frame, a piston rod and a piston are arranged in the plunger cylinder, the upper end of the piston rod is connected with the frame through a connecting pin, the lower end of the piston rod is fixedly connected with the piston, the bottom of the plunger cylinder is connected with the axle, the piston divides the plunger cylinder into an upper oil cavity and a lower oil cavity, an oil inlet of a gear pump is connected with the lower oil cavity of the plunger cylinder through an oil inlet hose, an oil outlet of the gear pump is connected with the upper oil cavity through an oil return hose, a rotating shaft of the gear pump is connected with a direct current generator, and an output end of the direct current generator is connected with a vehicle-mounted storage battery.
Description
Technical Field
The invention belongs to the technical field of electric vehicles, and particularly relates to a shock absorber with a vibration energy recovery function.
Background
Shock absorbers are widely used in vehicles, whether in automobiles, motorcycles, or other situations where shock absorption is desired. The function of the shock absorber is to effectively attenuate the energy of vibration, reduce the amplitude of vehicle vibration, and the shock absorber has very wide application. When the vehicle applies a force to the shock absorber, the shock absorber piston moves, creating a pressure energy, which is wasted.
Disclosure of Invention
The invention aims to provide a shock absorber with a vibration energy recovery function, which can convert energy generated by vibration in the shock absorber into electric energy for storage, saves energy and has high efficiency of converting the vibration energy into the electric energy.
The object of the invention is achieved in the following way: the utility model provides a bumper shock absorber with vibration energy recovery function, including the plunger cylinder, direct current generator, gear pump and on-vehicle storage battery, the plunger cylinder sets up between axle and frame, be provided with piston rod and piston in the plunger cylinder, the upper end of piston rod is connected with the frame through the connecting pin, the lower extreme fixed connection piston of piston rod, the cylinder bottom and the axle of plunger cylinder are connected, the piston divide into the plunger cylinder and go up oil pocket and lower oil pocket, direct current generator is connected to the pivot of gear pump, the output of direct current generator connects on-vehicle storage battery, there is another downstream valve piece, downstream valve piece's lower cavity A and plunger cylinder's lower oil pocket pass through down hose connection, downstream valve piece's upper cavity B and plunger cylinder's upper oil pocket pass through last hose connection, downstream valve piece's oil-out P and gear pump's oil inlet pipeline connection, downstream valve piece's oil return port T and gear pump oil outlet port are connected, downstream valve piece's downstream valve piece includes first check valve, the second check valve, third check valve, fourth check valve and fourth check valve piece's lower cavity A connect the first check valve and the check valve piece's of a downstream valve piece, downstream valve piece's oil inlet port is connected to the oil-out port of the check valve, downstream valve piece's downstream valve piece, downstream valve piece's T is connected to the oil outlet port of the check valve T.
The liquid storage device comprises a barrel body with an oil port at the lower end and a diaphragm arranged in the barrel body, wherein the upper end of the diaphragm is provided with a compression spring, the lower end of the diaphragm is provided with oil, and the oil port of the barrel body is connected with an oil return port T of the downstream valve block through a pipeline.
The lower end face of the piston is provided with a lower oil port of a cylinder connected with the lower oil cavity, the upper end face of the piston is provided with an upper oil port communicated with the upper oil cavity, two oil ways are arranged in parallel in the piston rod, one is a lower oil way communicated with the lower oil port, the other is an upper oil way communicated with the upper oil port, an oil seal is arranged at the upper port of the plunger cylinder, the upper oil way is connected with an upper hose, and the lower oil way is connected with the lower hose. This design sets up the oil circuit in the piston rod, can effectively reduce the length of hose, reduces occupation space, improves hose life.
The plunger cylinder is a cylinder body with two open ends, an upper sealing cover is arranged at the upper end of the plunger cylinder, a lower sealing cover is arranged at the lower end of the plunger cylinder, an upper oil port in butt joint with an oil return hose is arranged on the upper sealing cover, and a lower oil port in butt joint with the oil inlet hose is arranged on the lower sealing cover. The upper sealing cover and the lower sealing cover are respectively in a sealing state with the upper port and the lower port of the plunger cylinder, and the hydraulic component is simple, cheap and reliable.
The invention has simple manufacturing process, damping effect, and the function of converting vibration energy into electric energy for recovery, and is particularly used on electric vehicles; in the running process of the vehicle, potential energy generated by bumping of the vehicle is converted into hydraulic kinetic energy in the plunger cylinder, the hydraulic kinetic energy changes the flowing direction of hydraulic oil through the downstream valve group, a gear pump is driven, the gear pump is connected in series with a direct-current generator, and electric energy generated by the direct-current generator charges a vehicle-mounted storage battery group, so that the electric energy conversion efficiency is improved, the cruising mileage of the vehicle is effectively prolonged, and great social benefit and economic benefit are achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is another schematic structural view of the present invention;
FIG. 3 is a schematic diagram of the structure of the downstream valve block;
fig. 4 is a partially enlarged schematic structural view of fig. 1.
In the figure: 1. the vehicle-mounted storage battery, 2, a direct-current generator, 3, a gear pump, 4, a forward flow valve bank, 41, a first one-way valve, 42, a second one-way valve, 43, a third one-way valve, 44, a fourth one-way valve, 45, a liquid storage device, 5, an upper hose, 6, a vehicle frame, 7, a connecting pin, 8, a piston rod, 9, an oil seal, 10, an upper oil cavity, 11, a piston, 12, a lower oil cavity, 13, an axle, 14, a lower hose, 15, an upper oil path, 16, a lower oil path, 17, an upper cover and 18, a lower cover.
Detailed Description
Referring to fig. 1-4, a shock absorber with vibration energy recovery function comprises a plunger cylinder, a direct current generator 2, a gear pump 3 and a vehicle-mounted storage battery 1, wherein the plunger cylinder is arranged between an axle 13 and a frame 6, a piston rod 8 and a piston 11 are arranged in the plunger cylinder, the upper end of the piston rod 8 is connected with the frame 6 through a connecting pin 7, the lower end of the piston rod 8 is fixedly connected with the piston 11, the cylinder bottom of the plunger cylinder is connected with the axle 13, the piston 11 divides the plunger cylinder into an upper oil cavity 11 and a lower oil cavity 12, a rotating shaft of the gear pump 3 is connected with the direct current generator 2, the output end of the direct current generator 2 is connected with the vehicle-mounted storage battery 1, a forward valve block 4 is additionally arranged, a lower cavity opening A of the forward valve block 4 is connected with a lower oil cavity 12 of the plunger cylinder through a lower hose 14, an upper cavity opening B of the forward valve block 4 is connected with an upper oil cavity 10 of the plunger cylinder through an upper hose 5, an oil outlet P of the forward valve block 4 is connected with an oil inlet of the gear pump 3, an oil return opening T of the forward valve block 4 is connected with an oil outlet of the gear pump 3, the forward valve block 4 comprises a first check valve 41, a second check valve 42, a third check valve 44, a fourth check valve 44 and a fourth check valve 44 are connected with the oil outlet port of the forward valve 4, an oil outlet of the forward valve 4 is connected with the fourth check valve 4, an oil outlet port of the forward valve 4 is connected with the fourth check valve 4, and a fourth check valve 44 is connected with the fourth valve 44, and a fourth valve 44 is connected with the fourth valve 44, the inlet and outlet of the liquid reservoir 45 are connected with the oil return port T of the downstream valve block 4.
When the device is used, the whole device is fixed between the frame 6 and the axle 13, and the piston rod 8 is driven to continuously move up and down in a pulse mode through jolt of an electric automobile on a road, and the piston 11 in the plunger cylinder continuously presses oil to generate pressure energy: when the piston rod 8 moves downwards, hydraulic oil in the lower oil cavity 12 flows to an oil inlet of the gear pump 3 through the lower hose 14, a lower cavity opening A of the forward flow valve block, the first one-way valve 41 and an oil outlet P of the forward flow valve block 4 in sequence, and then flows to an upper oil cavity 10 of the plunger cylinder through an oil discharge port of the gear pump 3, an oil return port T of the forward flow valve block 4, the fourth one-way valve and the upper hose 5, wherein redundant oil enters a liquid reservoir from the oil return port T of the forward flow valve block 4; when the piston rod moves upwards, hydraulic oil in the upper oil cavity 10 flows to an oil inlet of the gear pump 3 sequentially through the upper hose 5, an upper cavity opening B of the downstream valve block 4, the third one-way valve and an oil outlet T of the downstream valve block, and then flows to a lower oil cavity 12 of the plunger cylinder through an oil discharge port of the gear pump 3, a second one-way valve, a lower cavity opening A of the downstream valve block and a lower hose, and oil in the lower oil cavity 12 is supplemented by the liquid reservoir 45. The liquid storage device 45 comprises a barrel body with an oil port at the upper end and an oil port at the lower end, a diaphragm is arranged in the barrel body, a compression spring is arranged at the upper end of the diaphragm, oil is arranged at the lower end of the diaphragm, and the oil port of the barrel body is connected with an oil return port T of the downstream valve block 4 through a pipeline. The design of reservoir is in order to solve the fluid inflation or the defect problem that upper oil pocket and lower oil pocket brought because the volume is different.
The output shaft of the gear pump 3 rotates along one direction no matter the piston rod 8 moves up or down, and the kinetic energy generated by the gear pump 3 is transmitted to the direct current generator 2, so that the kinetic energy is converted into electric energy and stored on the vehicle-mounted storage battery 1 for supplying power to the automobile;
as an embodiment of the present invention, the lower end surface of the piston 11 is provided with a lower oil port connected with the lower oil cavity 12, the upper end surface of the piston 11 is provided with an upper oil port connected with the upper oil cavity 10, two oil paths are arranged in parallel in the piston rod 8, one is a lower oil path 16 connected with the lower oil port, the other is an upper oil path 15 connected with the upper oil port, the upper port of the plunger cylinder is provided with an oil seal 9, the upper oil path 15 is connected with the upper hose 5, and the lower oil path 16 is connected with the lower hose 14.
As another embodiment of the present invention, the plunger cylinder is a cylinder body with two open ends, the upper end of the plunger cylinder is provided with an upper cover 17, the lower end of the plunger cylinder is provided with a lower cover 18, the upper cover 17 is provided with an upper oil port in butt joint with the upper hose 5, and the lower cover 18 is provided with a lower oil port in butt joint with the lower hose 14.
When the device is used, the whole device is fixed between the frame 6 and the axle 13, the piston rod 8 is driven to continuously move up and down in a pulse mode through jolt of an electric vehicle on a road, the piston 11 in the plunger cylinder continuously presses oil to generate pressure energy, the gear pump 3 is driven to act by the lower hose 14 and the upper hose 5, and kinetic energy generated by the gear pump 3 is transmitted to the direct-current generator 2, so that the kinetic energy is converted into electric energy and stored on the vehicle-mounted storage battery 1 for the electric vehicle; the invention has the advantages of simple structure, low manufacturing cost, simple post maintenance, long service life and high efficiency of converting vibration energy into electric energy, the downstream valve group 4 ensures that the gears in the gear pump 3 always rotate in one direction, the vibration energy in the running process of the vehicle is fully utilized, the direct current generator 2 directly supplies electric energy to the vehicle-mounted storage battery 1, the consumption of the electric energy of the vehicle is reduced, the cruising mileage of the electric vehicle is greatly prolonged, and great social benefit and economic benefit are realized.
Claims (2)
1. The utility model provides a bumper shock absorber with vibration energy recovery function, including plunger jar, direct current generator (2), gear pump (3) and on-vehicle storage battery (1), the plunger jar sets up between axle (13) and frame (6), be provided with piston rod (8) and piston (11) in the plunger jar, the upper end of piston rod (8) is connected with frame (6) through connecting pin (7), the lower extreme fixed connection piston (11) of piston rod (8), the cylinder bottom and the axle (13) of plunger jar are connected, piston (11) divide into oil pocket (10) and lower oil pocket (12) with the plunger jar, direct current generator (2) are connected in the pivot of gear pump (3), on-vehicle storage battery (1) are connected to the output of direct current generator (2), its characterized in that: the downstream valve block (4) is further provided with a downstream valve block (4), a lower cavity opening A of the downstream valve block (4) is connected with a lower oil cavity (12) of the plunger cylinder through a lower hose (14), an upper cavity opening B of the downstream valve block (4) is connected with an upper oil cavity (10) of the plunger cylinder through an upper hose (5), an oil outlet P of the downstream valve block (4) is connected with an oil inlet pipeline of the gear pump (3), an oil return opening T of the downstream valve block (4) is connected with an oil outlet of the gear pump (3), the downstream valve block (4) comprises a first check valve (41), a second check valve (42), a third check valve (43), a fourth check valve (44) and a liquid reservoir (45), a lower cavity opening A of the downstream valve block (4) is connected with an oil inlet of the first check valve (41) and an oil outlet of the second check valve (42), an oil inlet of the first check valve (41) is connected with an oil outlet P of the downstream valve block (4), an oil inlet of the second check valve (42) is connected with an oil return opening T of the downstream valve block (4), an oil outlet of the downstream valve block (4) is connected with an oil outlet of the fourth check valve (44) of the downstream valve (4), an inlet and an outlet of the liquid storage device (45) are connected with an oil return port T of the downstream valve block (4); the lower end face of the piston (11) is provided with a lower oil port of a cylinder connected with the lower oil cavity (12), the upper end face of the piston (11) is provided with an upper oil port communicated with the upper oil cavity (10), two oil ways are arranged in parallel in the piston rod (8), one oil way is a lower oil way (16) communicated with the lower oil port, the other oil way is an upper oil way (15) communicated with the upper oil port, an oil seal (9) is arranged at the upper port of the plunger cylinder, the upper oil way (15) is connected with the upper hose (5), and the lower oil way (16) is connected with the lower hose (14); the plunger cylinder is a cylinder body with two open ends, an upper sealing cover (17) is arranged at the upper end of the plunger cylinder, a lower sealing cover (18) is arranged at the lower end of the plunger cylinder, an upper oil port in butt joint with an upper hose (5) is arranged on the upper sealing cover (17), and a lower oil port in butt joint with a lower hose (14) is arranged on the lower sealing cover (18).
2. The shock absorber with vibration energy recovery function according to claim 1, wherein: the liquid storage device is characterized in that the liquid storage device (45) comprises a barrel body with an oil port at the upper end and a diaphragm at the lower end, a compression spring is arranged at the upper end of the diaphragm in the barrel body, oil is arranged at the lower end of the diaphragm, and the oil port of the barrel body is connected with an oil return port T of the downstream valve block (4) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876420.4A CN109004727B (en) | 2018-08-03 | 2018-08-03 | Shock absorber with vibration energy recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876420.4A CN109004727B (en) | 2018-08-03 | 2018-08-03 | Shock absorber with vibration energy recovery function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109004727A CN109004727A (en) | 2018-12-14 |
| CN109004727B true CN109004727B (en) | 2023-12-12 |
Family
ID=64595607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810876420.4A Active CN109004727B (en) | 2018-08-03 | 2018-08-03 | Shock absorber with vibration energy recovery function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109004727B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667364B (en) * | 2019-09-18 | 2024-05-14 | 阿尔特汽车技术股份有限公司 | Suspension system with energy recovery device |
| CN114211955A (en) * | 2021-12-22 | 2022-03-22 | 余向东 | Device for converting mechanical energy into hydraulic energy in automobile driving process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204371568U (en) * | 2015-01-09 | 2015-06-03 | 中国石油大学(华东) | A kind of Novel automobile shock absorber overbottom pressure energy electricity generating device |
| CN107031326A (en) * | 2017-03-15 | 2017-08-11 | 江苏大学 | A kind of electric automobile utilizes the self contained charging system and control method of suspension vibration energy |
| CN208690987U (en) * | 2018-08-03 | 2019-04-02 | 重庆瑞阳科技股份有限公司 | Damper with vibration energy regeneration function |
-
2018
- 2018-08-03 CN CN201810876420.4A patent/CN109004727B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204371568U (en) * | 2015-01-09 | 2015-06-03 | 中国石油大学(华东) | A kind of Novel automobile shock absorber overbottom pressure energy electricity generating device |
| CN107031326A (en) * | 2017-03-15 | 2017-08-11 | 江苏大学 | A kind of electric automobile utilizes the self contained charging system and control method of suspension vibration energy |
| CN208690987U (en) * | 2018-08-03 | 2019-04-02 | 重庆瑞阳科技股份有限公司 | Damper with vibration energy regeneration function |
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| Publication number | Publication date |
|---|---|
| CN109004727A (en) | 2018-12-14 |
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