CN205469271U - EPS is with integration rotation direction sensor - Google Patents
EPS is with integration rotation direction sensor Download PDFInfo
- Publication number
- CN205469271U CN205469271U CN201620323414.2U CN201620323414U CN205469271U CN 205469271 U CN205469271 U CN 205469271U CN 201620323414 U CN201620323414 U CN 201620323414U CN 205469271 U CN205469271 U CN 205469271U
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- circuit board
- eps
- gear
- multistage
- tooth yoke
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Power Steering Mechanism (AREA)
Abstract
EPS is with integration rotation direction sensor relates to a rotation direction sensor. The utility model discloses a with high costs in order to solve current independent sensor stack using -way, occupation space is big, and two way signal mutual independence input control system lead to the problem that the control algorithm engineering is complicated moreover. The utility model discloses a rotation direction sensor includes torque measured module and angle measured module, and that wherein torque measured module adopts is hall formula torque measuring device, including multistage magnetosphere, double -deck tooth yoke, collection magnetism end and hall chip HAL815. The reluctance type angle measuring device that corner measured module used is including radially magnetize permanent magnet and hall chip AS5147 to thereby enlarge many circles measurement that turned angle realized absolute angle through multistage gear. Connect through the soft arranging wire between two measured module, in the unified output of avoiding realizing the signal under the circumstances of mutual interference.
Description
Technical field
This utility model relates to a kind of automobile EPS rotation direction sensor, is specifically related to a kind of reluctance type noncontact corner torque
Integrated transducer, in steering wheel rotation process, is used for measuring moment of torsion and steering wheel suffered by torsion bar in steering wheel and definitely turns
Angle, belongs to motor turning and controls technical field.
Background technology
Automobile electric booster steering system (EPS) for motor turning offer power-assisted by controlling motor thus improves driver and is turning
Driving comfort during to, the rotation direction sensor in EPS then provides moment of torsion and angle letter for steering control system
Number, controlling motor is just providing power steering assisted diversion and steering wheel return.Raising and automobile along with EPS performance requirement
The development of chassis integrated technique, it is desirable to be simultaneously equipped with torque and angular signal sensor in EPS.The most domestic with list
One sensor is main, and in the majority with separated sensor superposition occupation mode, and this occupation mode not only cost is high, takes up room
Greatly, and the separate input control system of two paths of signals, cause controlling computing engineering complicated.The most only minority Foreign Automobile
The moment of torsion angle integrated transducer that parts company is developed occupies staple market share.Therefore a kind of applicable vapour is designed and developed
Car uses environment, and volume is little, low cost, dependable performance, and the rotation direction sensor of the torque corner integral type that integrated level is high is to entering
One step improves EPS serviceability, improves automotive control system integration by significance.
Utility model content
Given below about brief overview of the present utility model, in order to provide about of the present utility model in terms of some
Basic comprehension.Should be appreciated that this general introduction is not to summarize about exhaustive of the present utility model.It is not intended to determine
Key of the present utility model or pith, be not intended limitation scope of the present utility model.Its purpose is only to simplify
Form provide some concept, in this, as the preamble in greater detail discussed after a while.
In consideration of it, according to an aspect of the present utility model, this utility model is directed to a kind of integrated journey for EPS
Degree height, simple in construction, internal glitch-free torque and the integral steering sensor of outer corner measurement, it is achieved to EPS steering system
The input torque of system and the measurement of the absolute corner of steering wheel, solve separated sensor superposition occupation mode cost high, take sky
Between big, and the separate input control system of two paths of signals, cause controlling the problem that computing engineering is complicated.
The EPS integral steering sensor that the utility model proposes, its concrete structure is, multistage magnetosphere is connected to input
On axle, double-layered tooth yoke is connected on output shaft, and double-layered tooth yoke interlaced arrangement, upper tooth yoke gear piece correspondence lower tooth yoke space；On
Collection magnetic end is fixed in upper cover by injection, and next part magnetic end is fixed in lower house by injection, and Hall chip HAL815 hangs down
Directly being welded on first circuit board, first circuit board is fixedly mounted in PCB mounting bracket；PCB mounting bracket is by location
Hole is fixed with lower house and upper cover；Gear wheel is fixed on multistage magnetosphere by keyway, and the first little gear and two pinion lead to
Cross gear shaft to be arranged in the locating slot of upper shell；Shooting Technique is all passed through in the center of the first little gear and two pinion
It is fixed with radial magnetizing permanent magnetism body, simultaneously at the first little gear and the arranged beneath second circuit board of two pinion, the second electricity
Being disposed with two Hall chip AS5147 on the plate of road, two Hall chip AS5147 are corresponding with radial magnetizing permanent magnetism body respectively；
First little gear, two pinion and gear wheel three engage each other；First circuit board and second circuit board are by soft arranging wire even
Connect.
Described upper cover, upper shell and lower house constitute sensor mounting shell body portion.The fixing peace of sensor mounting shell body portion
It is contained on EPS steering column, without relative motion.
Described upper collection magnetic end is fixed in upper cover, and next part magnetic end is fixed in lower house, realizes upper next part magnetic by location and installation
Hold the fixing of relative position.
Further: described multistage magnetosphere is connected on power shaft by the thin-wall bush being moulded in therewith together, double-layered tooth yoke
It is connected on output shaft by the thin-wall bush being moulded in therewith together.
Further: described first circuit board is that torque processes circuit board, second circuit board is that angle processes circuit board, both
Circumferentially diametrically opposed location is arranged.Connected by soft arranging wire between the two, in the case of avoiding interfering, it is achieved remote
The distance signal of telecommunication and the transmission of output signal.
Further: described PCB mounting bracket place plane is vertical with lower house place plane.
Further: on the inwall of described gear wheel, be provided with at least two rectangular preiection.Rectangular preiection is by being molded with magnetosphere
Slot fit fastening in body is installed.
The effect that this utility model is reached is:
Sensor of the present utility model is arranged on the power shaft being connected with vehicle steering and the output being connected with power-assisted assembly
Between axle, at moment of torsion and steering wheel produced by power shaft and output between centers when steering wheel being carried out steering operation for measuring
Relative to rotational angle produced by car body.Rotation direction sensor includes torque measurement module and Angle Measurement Module, wherein torque
Measurement module uses Hall-type torque measuring device, including multistage magnetosphere, double-layered tooth yoke, collection magnetic end and Hall chip
HAL815.The magneto resistive angular measurement apparatus that outer corner measurement module uses, including radial magnetizing permanent magnetism body and Hall chip
AS5147, and by multi-stage gear amplify rotational angle thus realize absolute angle multi-turn measure.Lead between two measurement modules
Cross soft arranging wire to connect, in the case of avoiding interfering, realize the unified output of signal.
Accompanying drawing explanation
Fig. 1 is rotation direction sensor overall structure figure；
Fig. 2 is rotation direction sensor assembly explosive view；
Fig. 3 is upper cover and collection magnetic end structure；
Fig. 4 is upper shell and arrangement of gears figure.
Detailed description of the invention
Hereinafter in connection with accompanying drawing, one exemplary embodiment of the present utility model is described.For clarity and conciseness,
All features of actual embodiment are not the most described.It should be understood, however, that it is any this actual real in exploitation
Must make during executing example much specific to the decision of embodiment, in order to realize the objectives of developer, such as,
Meet those restrictive conditions relevant to system and business, and these restrictive conditions may be along with the difference of embodiment
Change.Additionally, it also should be appreciated that, although development is likely to be extremely complex and time-consuming, but to having benefited from this
For those skilled in the art of utility model disclosure, this development is only routine task.
Here, also need to explanation a bit, in order to avoid having obscured this utility model because of unnecessary details, at accompanying drawing
In illustrate only with according to the closely-related apparatus structure of scheme of the present utility model and/or process step, and eliminate with
Other details that this utility model relation is little.
The EPS of present embodiment integral steering sensor, including sensor mounting shell body portion, process circuit, turns
Square measurement module and Angle Measurement Module, wherein torque measurement module uses Hall-type torque measuring device, including multistage
Magnetosphere, double-layered tooth yoke, collection magnetic end and Hall chip HAL815.The magneto resistive angular that outer corner measurement module uses measures dress
Put, including radial magnetizing permanent magnetism body and Hall chip AS5147, and by multi-stage gear amplify rotational angle thus realize
The multi-turn of absolute angle is measured.The first circuit board and the second circuit board that process circuit are connected by soft arranging wire, it is achieved two surveys
The unified output of amount intermodule signal.
The concrete structure of EPS integral steering sensor is, described multistage magnetosphere 4 is by being moulded in thin-walled together therewith
Lining is connected on power shaft, and double-layered tooth yoke 2 is connected on output shaft by the thin-wall bush being moulded in therewith together, and double
Layer tooth yoke 2 interlaced arrangement, upper tooth yoke gear piece correspondence lower tooth yoke space；Upper collection magnetic end 12 is fixed in upper cover 1 by injection,
Next part magnetic end 6 is fixed in lower house 7 by injection, and Hall chip HAL815 is vertically welded on first circuit board, the
One circuit board is fixedly mounted in PCB mounting bracket 3；PCB mounting bracket 3 is by hole, location and lower house 7 and upper cover 1
Fixing；Gear wheel 5 is fixed on multistage magnetosphere 4 by keyway, and the first little gear 8 and two pinion 9 pass through gear shaft
It is arranged in the locating slot of upper shell 10, and is relatively rotated and axle with locating slot is accessible by protruding realization the on gear shaft
Position to without transmission；The center of the first little gear 8 and two pinion 9 is all fixed with radial magnetizing by Shooting Technique
Permanent magnet, simultaneously at the first little gear 8 and arranged beneath second circuit board of two pinion 9, second circuit board is arranged
Angled process circuit and two Hall chip AS5147, two Hall chip AS5147 respectively with radial magnetizing permanent magnetism body phase
Corresponding；First little gear 8, two pinion 9 and gear wheel 5 three engage each other, and realize letter by Multi-stage transmission angle
Number amplify；First circuit board and second circuit board are connected by soft arranging wire.
When steering wheel rotates, the multistage magnetosphere 4 and the double-layered tooth yoke 2 being connected with output shaft that connect with power shaft occur relative
Rotating, the magnetic field intensity collected by upper collection magnetic end 12 and next part magnetic end 6 changes, and is measured by Hall chip HAL815
Draw relative rotation, utilize the computational methods of the mechanics of materials can be calculated level of torque.
When steering wheel rotates, multistage magnetosphere 4 rotates with power shaft, the gear wheel 5 being simultaneously connected with multistage magnetosphere 4
Concomitant rotation, and drive the first little gear 8 and two pinion 9 to rotate, the radial magnetizing permanent magnetism body being installed in little gear
Rotate relative to the Hall chip AS5147 on second circuit board, measure the relative rotation of each little gear, calculate
The difference of two little gear corners also forms corresponding relation with steering wheel rotational angle.The described gear wheel number of teeth is 44, first
Pinion gear teeth number is 20, and the number of teeth of two pinion is 22, can realize ± the absolute angle of 900 ° of scopes by mathematic interpolation
Degree is measured.
Torque measurement signal and outer corner measurement signal are connected by FPC soft arranging wire, it is achieved the power supply of distance and signal transmission.
Gained signal is processed through single-chip microcomputer and is transferred on EPS controller by wire harness, and controller is taken this as a foundation control assist motor
Realize power-assisted steering and steering wheel is actively just returning.
Although the embodiment disclosed in this utility model is as above, but its content is only to facilitate understand skill of the present utility model
Art scheme and the embodiment that uses, be not intended to limit this utility model.In any this utility model art
Technical staff, on the premise of without departing from the core technology scheme disclosed in this utility model, can be in the form implemented with thin
Any amendment and change being made on joint, but the protection domain that this utility model is limited, still must limit with appending claims
In the range of standard.
Claims (5)
1.EPS integral steering sensor, it is characterised in that: multistage magnetosphere (4) is connected on power shaft, double-layered tooth
Yoke (2) is connected on output shaft, and double-layered tooth yoke (2) interlaced arrangement, upper tooth yoke gear piece correspondence lower tooth yoke space；Upper collection
Magnetic end (12) is fixed in upper cover (1) by injection, and next part magnetic end (6) is fixed in lower house (7) by injection,
Hall chip HAL815 is vertically welded on first circuit board, and first circuit board is fixedly mounted in PCB mounting bracket (3)；
PCB mounting bracket (3) is fixed with lower house (7) and upper cover (1) by hole, location；Gear wheel (5) is solid by keyway
Being scheduled on multistage magnetosphere (4), the first little gear (8) and two pinion (9) are arranged on upper shell (10) by gear shaft
Locating slot in；The center of the first little gear (8) and two pinion (9) is all fixed with radially by Shooting Technique
Charging permanent magnet, simultaneously at the first little gear (8) and arranged beneath second circuit board of two pinion (9), the second electricity
Being disposed with two Hall chip AS5147 on the plate of road, two Hall chip AS5147 are corresponding with radial magnetizing permanent magnetism body respectively；
First little gear (8), two pinion (9) and gear wheel (5) three engage each other；First circuit board and the second electricity
Road plate is connected by soft arranging wire.
EPS integral steering sensor the most according to claim 1, it is characterised in that: described multistage magnetosphere leads to
Crossing the thin-wall bush being moulded in therewith together to be connected on power shaft, double-layered tooth yoke is by being moulded in thin-wall bush together therewith
It is connected on output shaft.
EPS integral steering sensor the most according to claim 1, it is characterised in that: described first circuit board
Processing circuit board for torque, second circuit board is that angle processes circuit board.
EPS integral steering sensor the most according to claim 1, it is characterised in that: described PCB installs and props up
Frame (3) place plane is vertical with lower house (7) place plane.
EPS integral steering sensor the most according to claim 1, it is characterised in that: described gear wheel (5)
Inwall on be provided with at least two rectangular preiection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323414.2U CN205469271U (en) | 2016-04-18 | 2016-04-18 | EPS is with integration rotation direction sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620323414.2U CN205469271U (en) | 2016-04-18 | 2016-04-18 | EPS is with integration rotation direction sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205469271U true CN205469271U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620323414.2U Expired - Fee Related CN205469271U (en) | 2016-04-18 | 2016-04-18 | EPS is with integration rotation direction sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205469271U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107776660A (en) * | 2017-10-17 | 2018-03-09 | 哈尔滨工业大学 | New automobile electric boosting steering system torque rotary angle transmitter and its detection method |
| CN109668507A (en) * | 2017-10-13 | 2019-04-23 | 株式会社捷太格特 | Sensor device |
| CN109923029A (en) * | 2016-11-08 | 2019-06-21 | Lg伊诺特有限公司 | Torque index sensor and transfer including the torque index sensor |
| CN110637214A (en) * | 2017-05-16 | 2019-12-31 | 亨斯特勒有限公司 | Multi-turn angle measuring device |
| CN112066870A (en) * | 2020-09-29 | 2020-12-11 | 山东理工大学 | Agricultural machinery steering angle measuring device |
| CN114322731A (en) * | 2021-12-30 | 2022-04-12 | 徐州重型机械有限公司 | Length and angle sensor of gearless transmission mechanism |
-
2016
- 2016-04-18 CN CN201620323414.2U patent/CN205469271U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923029A (en) * | 2016-11-08 | 2019-06-21 | Lg伊诺特有限公司 | Torque index sensor and transfer including the torque index sensor |
| CN109923029B (en) * | 2016-11-08 | 2021-08-31 | Lg伊诺特有限公司 | Torque index sensor and steering apparatus including the same |
| CN110637214A (en) * | 2017-05-16 | 2019-12-31 | 亨斯特勒有限公司 | Multi-turn angle measuring device |
| CN110637214B (en) * | 2017-05-16 | 2022-06-03 | 亨斯特勒有限公司 | Multi-turn angle measuring device |
| CN109668507A (en) * | 2017-10-13 | 2019-04-23 | 株式会社捷太格特 | Sensor device |
| CN107776660A (en) * | 2017-10-17 | 2018-03-09 | 哈尔滨工业大学 | New automobile electric boosting steering system torque rotary angle transmitter and its detection method |
| CN107776660B (en) * | 2017-10-17 | 2020-04-14 | 哈尔滨工业大学 | Torque and corner sensor of automobile electric power steering system and detection method thereof |
| CN112066870A (en) * | 2020-09-29 | 2020-12-11 | 山东理工大学 | Agricultural machinery steering angle measuring device |
| CN114322731A (en) * | 2021-12-30 | 2022-04-12 | 徐州重型机械有限公司 | Length and angle sensor of gearless transmission mechanism |
| CN114322731B (en) * | 2021-12-30 | 2024-03-19 | 徐州重型机械有限公司 | Length angle sensor of gearless transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |