CN107487140B - A kind of high-precision electric automotive suspension stiffness measurement sensor - Google Patents
A kind of high-precision electric automotive suspension stiffness measurement sensor Download PDFInfo
- Publication number
- CN107487140B CN107487140B CN201710709976.XA CN201710709976A CN107487140B CN 107487140 B CN107487140 B CN 107487140B CN 201710709976 A CN201710709976 A CN 201710709976A CN 107487140 B CN107487140 B CN 107487140B
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- Prior art keywords
- permanent magnet
- power coil
- permanent magnets
- power
- generator unit
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- 239000000725 suspension Substances 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000010248 power generation Methods 0.000 claims description 6
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60G2401/17—Magnetic/Electromagnetic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Present invention relates particularly to a kind of high-precision electric automotive suspension stiffness measurement sensor compact-sized, measurement accuracy is high, which includes that two spiral helicine power coils mutually spiral the DNA formula double-spiral structure to be formed；Multiple groups generator unit is set between two power coils, every group of generator unit includes two permanent magnets, the outer end of two permanent magnets is connected with a power coil insulation respectively, and the inner end of two permanent magnets is close to each other and there are certain gap, the mutually opposing settings of the polarity of two permanent magnet inner ends；The interior end cap of two permanent magnets is in guide sleeve；When helical spring vibrates, the length of power coil does not change, automatic fitration vibration；One section of arc shape being also considered as in space when a certain section of helical spring deformation changes, and such minor change can be changed by the length of the power coil of winding accurately to be corresponded to, and measurement accuracy is high；Sensor is wrapped on helical spring, compact-sized.
Description
Technical field
The present invention relates to automotive suspension technical field, in particular to a kind of high-precision electric automotive suspension stiffness measurement sensing
Device.
Background technique
In the independent suspension system of car, in order to offset the vibration and impact of vertical direction, and by the weight transmitting of vehicle body
To vehicle bridge, usually spring and damper are used cooperatively, spring can transmit vertical force, and delay to impact, and damper can be inhaled
Receive impact energy, thus the vibration that decays, most of spring used at present is helical spring or air spring, helical spring it is excellent
Point is that structure is simple, cheap, therefore all uses helical spring as elastic element in most of cars.
In order to adapt to the demand of electric car, current automotive suspension gradually adopts active suspension system, i.e. real-time monitoring
Vibration between road surface and wheel to actively adjust the rigidity of helical spring or the damping characteristic of damper, but is surveyed at present
The sensor structure for measuring suspension rate is complex, and is not the sensor specially designed for helical spring, and matching degree is not
It is good, low measurement accuracy.
Summary of the invention
In view of the above-mentioned problems, it is an object of the present invention to provide a kind of high precision electro electrical automobiles compact-sized, measurement accuracy is high
Suspension rate measurement sensor.
For achieving the above object, the technical scheme adopted by the invention is that: a kind of high-precision electric automotive suspension is rigid
Measurement sensor is spent, the sensor includes that two spiral helicine power coils mutually spiral the DNA formula double helix knot to be formed
Structure；Multiple groups generator unit is set between the axial direction of power coil, two power coils, and every group of generator unit includes two coaxial
The permanent magnet of setting, the axial direction of permanent magnet and power coil it is axially vertical, the outer end of two permanent magnets generates electricity with one respectively
Coil insulation connection, the inner end of two permanent magnets is close to each other and there are certain gap, the polarity phases of two permanent magnet inner ends
It is mutually oppositely arranged；The interior end cap of two permanent magnets makes the inner end of permanent magnet can be sliding along the axial direction of guide sleeve in guide sleeve
It is dynamic；Two respective ends of power coil in one generator unit are communicated to connect with data collecting card respectively；
Two power coils are wrapped in jointly on a certain section of lateral surface of the helical spring in automotive suspension, make generating line
The axis of circle and spiral axis are coaxial.
Preferably, the length of the permanent magnet in different generator units is different, in different generator units opposite permanent magnet it
Between gap it is equal.
Preferably, the length of the permanent magnet in different generator units is identical, in different generator units opposite permanent magnet it
Between gap it is unequal.
The beneficial effects of the present invention are: one section of arc shape being considered as when a certain section of helical spring deformation in space
It changes, such minor change can be changed by the length of the power coil of winding accurately to be corresponded to, measurement essence
Degree is high；Sensor is wrapped on helical spring, compact-sized, light-weight.
Detailed description of the invention
Fig. 1 is sensor structure schematic diagram；
Two permanent magnets are located remotely from each other schematic diagram when Fig. 2 is vibration；
Two permanent magnet schematic diagrames close to each other when Fig. 3 is vibration.
Specific embodiment
A kind of high-precision electric automotive suspension stiffness measurement sensor as shown in FIG. 1 to FIG. 3, including two spiral helicine
Power coil 31 mutually spirals the DNA formula double-spiral structure to be formed；Between the axial direction of power coil 31, two power coils 31
Multiple groups generator unit is set, and every group of generator unit includes the permanent magnet 32 of two coaxial arrangements, the axial direction and power generation of permanent magnet 32
Coil 31 it is axially vertical, the outer end of two permanent magnets 32 is connected with the insulation of power coil 31 respectively, two permanent magnets 32
Inner end it is close to each other and there are certain gap, the mutually opposing settings of polarity of two 32 inner ends of permanent magnet；Two permanent magnets
32 interior end cap slide the inner end of permanent magnet 32 can along the axial direction of guide sleeve 33 in guide sleeve 33；One power generation is single
The respective end of two power coils 31 in member is communicated to connect with data collecting card respectively；Permanent magnet 32 and power coil 31 it
Between can be used insulative glue bonding, be also possible to power coil 31 side be arranged rubber card slot, by the one of permanent magnet 32
In end insertion card slot.
Two power coils 31 are wrapped in jointly on a certain section of lateral surface of the helical spring in automotive suspension, make to generate electricity
The axis of coil 31 and spiral axis are coaxial.
If Fig. 2-is shown in Fig. 3, when helical spring makes because of stress its length along the vertical direction change, spiral
The length of the power coil 31 of spring outwards also changes, since power coil 31 is helical form, spiral shell in space
Rotation arc shape is also changed, i.e. the axial length variation of power coil, causes its radial dimension to change, then two permanent magnetism
Gap between body 32 is changed, i.e., the magnetic gap in existing magnetic field is changed in power coil 31, according to electromagnetism sense
Induced current can be generated on power coil 31 known to principle by answering, and realize vibrating power-generation；It together should the reinstatement of vibrating power-generation body 3
When, the gap between two permanent magnets 32 equally can generate induced current on power coil 31 from large to small；Two permanent magnets
The very little that primary clearance between 32 can be set, in this way when gap changes, the induced current of generation is very big.Data collecting card
The current signal that power coil 31 issues is received, and judges the deflection of helical spring according to the size of electric current, and then be inferred to
The size of the vertical stress of suspension system, to carry out corresponding actively adjusting；Sensor is wrapped on helical spring, and structure is tight
It gathers, it is light-weight, it is highly suitable for electric car.
Since power coil 31 is helical form in space, it is considered as converting power generation for the length variation of helical spring
The variation of the spiral arc shape of coil realizes the length of helical spring changing amplificationization；Therefore a certain section of helical spring
Minor change can by the camber line of the power coil 31 of winding change accurately be corresponded to, measurement accuracy height.
Better implementation mode is: the length of the permanent magnet 32 in different generator units is different, phase in different generator units
Pair permanent magnet 32 between gap it is equal.
Better implementation mode is: the length of the permanent magnet 32 in different generator units is identical, phase in different generator units
Pair permanent magnet 32 between gap it is unequal.
Claims (3)
1. a kind of high-precision electric automotive suspension stiffness measurement sensor, it is characterised in that: the sensor includes two spiral shells
The power coil (31) of rotation shape mutually spirals the DNA formula double-spiral structure to be formed；Axial direction, two power generations along power coil (31)
Multiple groups generator unit is set between coil (31), and every group of generator unit includes the permanent magnet (32) of two coaxial arrangements, permanent magnet
(32) axial direction is axially vertical with power coil (31), the outer end of two permanent magnets (32) respectively with a power coil (31)
Insulation connection, the inner end of two permanent magnets (32) is close to each other and there are certain gap, the poles of two permanent magnet (32) inner ends
The mutually opposing setting of property；The interior end cap of two permanent magnets (32) makes the inner end of permanent magnet (32) can be along leading in the guide sleeve (33)
It is slided to the axial direction of set (33)；It is adopted respectively with data two respective ends of power coil (31) in one generator unit
Truck communication connection；
Two power coils (31) are wrapped in jointly on a certain section of lateral surface of the helical spring in automotive suspension, make generating line
Axis and the spiral axis for enclosing (31) are coaxial.
2. a kind of high-precision electric automotive suspension stiffness measurement sensor according to claim 1, it is characterised in that: different
The length of permanent magnet (32) in generator unit is different, the gap phase in different generator units between opposite permanent magnet (32)
Deng.
3. a kind of high-precision electric automotive suspension stiffness measurement sensor according to claim 1, it is characterised in that: different
The length of permanent magnet (32) in generator unit is identical, the not phase of the gap in different generator units between opposite permanent magnet (32)
Deng.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709976.XA CN107487140B (en) | 2017-08-17 | 2017-08-17 | A kind of high-precision electric automotive suspension stiffness measurement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709976.XA CN107487140B (en) | 2017-08-17 | 2017-08-17 | A kind of high-precision electric automotive suspension stiffness measurement sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107487140A CN107487140A (en) | 2017-12-19 |
| CN107487140B true CN107487140B (en) | 2019-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709976.XA Active CN107487140B (en) | 2017-08-17 | 2017-08-17 | A kind of high-precision electric automotive suspension stiffness measurement sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107487140B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869118A (en) * | 2019-04-15 | 2019-06-11 | 成都百胜野牛科技有限公司 | Conduction device and wellhead assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257451A (en) * | 2004-03-11 | 2005-09-22 | Sumitomo Electric Ind Ltd | On-vehicle weight detection device |
| CN201245053Y (en) * | 2008-08-07 | 2009-05-27 | 唐德修 | Onboard shock-absorbing bump energy generating set |
| CN102812621A (en) * | 2010-03-16 | 2012-12-05 | 孙春植 | Suspension System For Vehicle |
| US20130200589A1 (en) * | 2012-02-03 | 2013-08-08 | Christopher Paul Cox | Suspension with hydraulic preload adjust |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608104A (en) * | 1983-06-27 | 1985-01-17 | Nissan Motor Co Ltd | Floor level detector |
| TW201132524A (en) * | 2010-03-18 | 2011-10-01 | Wei-Ting Lin | Electromagnetic induction device of vehicular shock absorber having power generation and variable damping functions |
-
2017
- 2017-08-17 CN CN201710709976.XA patent/CN107487140B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257451A (en) * | 2004-03-11 | 2005-09-22 | Sumitomo Electric Ind Ltd | On-vehicle weight detection device |
| CN201245053Y (en) * | 2008-08-07 | 2009-05-27 | 唐德修 | Onboard shock-absorbing bump energy generating set |
| CN102812621A (en) * | 2010-03-16 | 2012-12-05 | 孙春植 | Suspension System For Vehicle |
| US20130200589A1 (en) * | 2012-02-03 | 2013-08-08 | Christopher Paul Cox | Suspension with hydraulic preload adjust |
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| Publication number | Publication date |
|---|---|
| CN107487140A (en) | 2017-12-19 |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191204 Address after: 400700 No. 8, Feng Qi Road, Cai Jia Gang Town, Beibei District, Chongqing (free trade area) Patentee after: Chongqing Guo GUI Racing Technology Co.,Ltd. Address before: 610039 Xihua University, 999 Jin Zhou road, Chengdu, Sichuan, Jinniu District Patentee before: Xihua University |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400700 No. 8, Feng Qi Road, Cai Jia Gang Town, Beibei District, Chongqing (free trade area) Patentee after: Chongqing Guogui Racing Technology Co.,Ltd. Address before: 400700 No. 8, Feng Qi Road, Cai Jia Gang Town, Beibei District, Chongqing (free trade area) Patentee before: Chongqing Guo GUI Racing Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high precision suspension stiffness measuring sensor for electric vehicle Effective date of registration: 20210722 Granted publication date: 20190802 Pledgee: China Construction Bank Corporation Chongqing Beibei sub branch Pledgor: Chongqing Guogui Racing Technology Co.,Ltd. Registration number: Y2021500000032 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221017 Granted publication date: 20190802 Pledgee: China Construction Bank Corporation Chongqing Beibei sub branch Pledgor: Chongqing Guogui Racing Technology Co.,Ltd. Registration number: Y2021500000032 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high-precision sensor for measuring suspension stiffness of electric vehicles Effective date of registration: 20230404 Granted publication date: 20190802 Pledgee: China Construction Bank Corporation Chongqing Beibei sub branch Pledgor: Chongqing Guogui Racing Technology Co.,Ltd. Registration number: Y2023500000024 |
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