WO2022058239A1 - Torque angle sensor - Google Patents
Torque angle sensor Download PDFInfo
- Publication number
- WO2022058239A1 WO2022058239A1 PCT/EP2021/074890 EP2021074890W WO2022058239A1 WO 2022058239 A1 WO2022058239 A1 WO 2022058239A1 EP 2021074890 W EP2021074890 W EP 2021074890W WO 2022058239 A1 WO2022058239 A1 WO 2022058239A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensing
- torque
- angle
- angle sensor
- chip
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
- B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
Definitions
- the present utility model relates to a sensor, an integrated torque angle sensor configured to monitor a steering state of a vehicle.
- a torque angle sensor integrates a torque sensor and an angle sensor, and is used to measure the angle of rotation of a vehicle steering wheel and the size of the torque acting thereon.
- An existing torque angle sensor has a cover, a torque measurement module, an angle measurement module, a connector and a housing.
- the torque angle sensor is mounted on a steering column of the steering wheel, and in order to protect the torque angle sensor, an outer housing and an outer cover which are fitted together are also provided on the steering column, for the purpose of accommodating and protecting the torque angle sensor; an input transfer connector and an output transfer connector are provided on the outer cover, wherein the input transfer connector is configured to be electrically connected to the connector of the torque angle sensor, and the output transfer connector is electrically connected to an electronic control apparatus by means of having connectors provided at two ends, so as to transmit signals of the torque angle sensor to the electronic control apparatus.
- the present utility model provides a torque angle sensor capable of meeting the requirement for redundancy in the measurement of steering angles of vehicle steering wheel rotation.
- a torque angle sensor mounted on a steering column and configured to detect a steering torque and angle of vehicle steering wheel rotation
- the torque angle sensor comprising a torque sensing unit, an angle sensing unit and a PCB;
- the torque sensing unit comprises a signal input rotor and a signal output rotor, and
- the angle sensing unit comprises an intermediate gear and a sensing gear, wherein the intermediate gear is meshed with the sensing gear, and a first sensing body and a second sensing body are provided on the sensing gear.
- the first sensing body is a magnet
- the second sensing body is a metal rotor
- the second sensing body comprises at least one fan blade
- the first sensing body and second sensing body are fixed to the sensing gear by welding, insert injection moulding or a press-in connection method.
- the sensing gear, first sensing body and second sensing body are arranged coaxially, with the first sensing body and second sensing body being spaced apart.
- the PCB comprises a first angle sensing chip and a second angle sensing chip, the first angle sensing chip being a Hall chip, and the second angle sensing chip being an electromagnetic sensing chip, or the second angle sensing chip being a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing and photoelectric sensing.
- a magnetic field generating and collecting component for angle measurement is provided on the PCB, the magnetic field generating and collecting component for angle measurement being implemented as a coil formed by a printed circuit, being formed by winding according to a certain winding rule, and being arranged substantially in the form of concentric circles.
- the signal input rotor comprises a first fan blade set
- the signal output rotor comprises a second fan blade set
- the signal input rotor and signal output rotor are configured to be arranged on mutually opposed ends of an input shaft and an output shaft of the steering column of the vehicle respectively, and rotate coaxially with the steering column.
- the PCB comprises a magnetic field generating and collecting component for torque measurement and a torque sensing chip, and the PCB uses electromagnetic induction, resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing, photoelectric sensing or Hall sensing to sense angle signals of the signal input rotor and signal output rotor.
- the torque angle sensor comprises a casing that accommodates the torque sensing unit, the angle sensing unit and the PCB.
- the first sensing body and second sensing body provided on the sensing gear of the torque angle sensor of the present utility model are sensed by the first angle sensing chip and the second angle sensing chip respectively, and it is thereby possible to obtain two independent sets of absolute steering angles of vehicle steering wheel rotation using two different sensing principles respectively; not only is it possible to satisfy the requirement for redundancy in the measurement of steering angles of vehicle steering wheel rotation, with more stable and reliable detection of signals, but also the cost is low and no additional space is taken up.
- Fig. 1 shows a schematic assembly diagram of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a torque sensing unit and an angle sensing unit being shown.
- Fig. 2 shows a schematic sectional view of assembly of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a torque sensing unit, an angle sensing unit and a PCB being shown.
- Fig. 3 shows another schematic diagram of assembly of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a first sensing body and a second sensing body of an angle sensing unit and a PCB being shown.
- a steering column (not shown) of a vehicle comprises an input shaft from a steering wheel, an output shaft to a steering shaft connector (not shown), and a torsion bar connected between the input shaft and output shaft.
- the torsion bar deforms; using known mechanical properties of the material of the torsion bar, the steering torque of steering wheel steering can be determined on the basis of the relative rotation angle of the input shaft relative to the output shaft, and this relative rotation angle can characterize the torsional deformation of the torsion bar.
- the structure of the vehicle steering column is familiar to those skilled in the art, so is not described superfluously here.
- a torque angle sensor in an embodiment of the present utility model is mounted on a steering column, and used to detect a steering torque and angle of vehicle steering wheel rotation;
- the torque angle sensor comprises a torque sensing unit, an angle sensing unit and a PCB 3.
- the torque sensing unit comprises a signal input rotor 4 and a signal output rotor 1, and the angle sensing unit comprises an intermediate gear 6 and a sensing gear 8, wherein the intermediate gear 6 is meshed with the sensing gear 8, and a first sensing body 61 and a second sensing body 62 are provided on the sensing gear 8.
- the signal input rotor 4 comprises a first fan blade set
- the signal output rotor 1 comprises a second fan blade set.
- the signal input rotor 4 and signal output rotor 1 are configured to be arranged on mutually opposed ends of an input shaft and an output shaft of the steering column of the vehicle respectively; specifically, the signal input rotor 4 is fitted round the input shaft of the steering column and rotates coaxially with the input shaft, while the signal output rotor 1 is fitted round the output shaft of the steering column and rotates coaxially with the output shaft, such that a torque between the input shaft and output shaft can be converted to a torque between the signal input rotor 4 and signal output rotor 1, and measurement of the torque of steering wheel steering can be accomplished by measuring the torque between the signal input rotor 4 and signal output rotor 1.
- the first sensing body 61 on the sensing gear 8 is for example a magnet
- the second sensing body 62 is for example a metal rotor; in this embodiment, the second sensing body 62 comprises at least one fan blade.
- the first sensing body 61 and second sensing body 62 are fixed to the sensing gear 8 by a method of connection such as welding, insert injection moulding or pressing in.
- the sensing gear 8, first sensing body 61 and second sensing body 62 are arranged coaxially, with the first sensing body 61 and second sensing body 62 being spaced apart; here, “spaced apart” means that the two bodies are separated by a certain distance and are not in contact with each other.
- the intermediate gear 6 is fitted round and fixed to the signal output rotor 1; the signal output rotor 1 and intermediate gear 6 can be fixed together by a method of connection such as welding, insert injection moulding or pressing in. As will be understood, in other embodiments, the intermediate gear 6 can be fitted round and fixed to the signal input rotor 4.
- the PCB 3 is fitted round the input shaft, and the PCB 3 comprises a magnetic field generating and collecting component for torque measurement (not shown) and a torque sensing chip 31; when the signal input rotor 4 and signal output rotor 1 rotate, the first fan blade set of the signal input rotor 4 and the second fan blade set of the signal output rotor 1 cut a magnetic field generated by the PCB, and the torque sensing chip 31 on the PCB 3 senses rotation angles of the first fan blade set of the signal input rotor 4 and the second fan blade set of the signal output rotor 1 by the principle of electromagnetic induction, and performs multiplication by a torsion bar coefficient, thereby measuring two intersecting torque and angle signals.
- the magnetic field generating and collecting component for torque measurement (not shown) is implemented as a coil formed by a printed circuit.
- the PCB 3 may also employ another conventional method, for example a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing, photoelectric sensing or Hall sensing, to sense angle signals of the signal input rotor 4 and signal output rotor 1.
- the PCB 3 comprises a first angle sensing chip 321 and a second angle sensing chip 322.
- the first angle sensing chip 321 is a Hall chip
- the second angle sensing chip 322 is an electromagnetic sensing chip.
- a magnetic field generating and collecting component 323 for angle measurement is provided on the PCB 3; the magnetic field generating and collecting component 323 for angle measurement is implemented as a coil formed by a printed circuit, being formed by winding according to a certain winding rule, and being arranged substantially in the form of concentric circles, with the number of turns and the winding rule being determined according to actual needs and parameters.
- the first angle sensing chip 321 senses the first sensing body 61 by the principle of Hall sensing, and perceives and calculates an angular position of rotation of the sensing gear 8 and outputs a first “number of turns” following signal to an ECU control unit (not shown); the first “number of turns” following signal and an initial rotation angle signal calculated by the torque sensing chip 31 are coupled inside the ECU control unit by means of a cursor algorithm to precisely calculate an absolute angle signal for vehicle steering wheel rotation that is finally required.
- the fan blade of the second sensing body 62 cuts a magnetic field generated by the PCB
- the second angle sensing chip 322 on the PCB 3 senses the second sensing body 62 by the principle of electromagnetic induction, perceiving and calculating a rotation angle of the sensing gear 8 and outputting a second “number of turns” following signal to the ECU control unit; the second “number of turns” following signal and an initial rotation angle signal calculated by the torque sensing chip 31 are coupled inside the ECU control unit by means of a cursor algorithm to precisely calculate an absolute angle signal for vehicle steering wheel rotation that is finally required.
- the second angle sensing chip 322 on the PCB 3 may also be another type of chip, for example a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing and photoelectric sensing, to acquire an angle signal of the second sensing body 62.
- the torque angle sensor of the present utility model further comprises a casing (not shown) that accommodates the torque sensing unit, the angle sensing unit and the PCB 3, the form and structure of the casing being determined according to actual needs and parameters; the shape and structure of the casing are familiar to those skilled in the art, so are not described superfluously here.
- the first sensing body 61 and second sensing body 62 provided on the sensing gear of the torque angle sensor of the present utility model are sensed by the first angle sensing chip 321 and the second angle sensing chip 322 respectively, and it is thereby possible to obtain two independent sets of absolute steering angles of vehicle steering wheel rotation using two different sensing principles respectively; not only is it possible to satisfy the redundancy requirement for steering angles of vehicle steering wheel rotation, with more stable and reliable detection of signals, but also the cost is low and no additional space is taken up.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present utility model relates to a torque angle sensor, mounted on a steering column and configured to detect a steering torque and angle of vehicle steering wheel rotation, the torque angle sensor comprising a torque sensing unit, an angle sensing unit and a PCB (3); the torque sensing unit comprises a signal input rotor (4) and a signal output rotor (1), and the angle sensing unit comprises an intermediate gear (6) and a sensing gear (8), wherein the intermediate gear (6) is meshed with the sensing gear (8), and a first sensing body (61) and a second sensing body (62) are provided on the sensing gear (8).
Description
Description
Title
Torque angle sensor
Technical field
The present utility model relates to a sensor, an integrated torque angle sensor configured to monitor a steering state of a vehicle.
Background art
A torque angle sensor integrates a torque sensor and an angle sensor, and is used to measure the angle of rotation of a vehicle steering wheel and the size of the torque acting thereon. An existing torque angle sensor has a cover, a torque measurement module, an angle measurement module, a connector and a housing. During use, the torque angle sensor is mounted on a steering column of the steering wheel, and in order to protect the torque angle sensor, an outer housing and an outer cover which are fitted together are also provided on the steering column, for the purpose of accommodating and protecting the torque angle sensor; an input transfer connector and an output transfer connector are provided on the outer cover, wherein the input transfer connector is configured to be electrically connected to the connector of the torque angle sensor, and the output transfer connector is electrically connected to an electronic control apparatus by means of having connectors provided at two ends, so as to transmit signals of the torque angle sensor to the electronic control apparatus.
Summary of the utility model
In view of the above, the present utility model provides a torque angle sensor capable of meeting the requirement for redundancy in the measurement of steering angles of vehicle steering wheel rotation.
Firstly, according to one aspect of the present utility model, it provides a torque angle sensor, mounted on a steering column and configured to detect a steering torque and angle of vehicle steering wheel rotation, the torque angle sensor
comprising a torque sensing unit, an angle sensing unit and a PCB; the torque sensing unit comprises a signal input rotor and a signal output rotor, and the angle sensing unit comprises an intermediate gear and a sensing gear, wherein the intermediate gear is meshed with the sensing gear, and a first sensing body and a second sensing body are provided on the sensing gear.
According to a feasible embodiment, the first sensing body is a magnet, the second sensing body is a metal rotor, and the second sensing body comprises at least one fan blade.
According to a feasible embodiment, the first sensing body and second sensing body are fixed to the sensing gear by welding, insert injection moulding or a press-in connection method.
According to a feasible embodiment, the sensing gear, first sensing body and second sensing body are arranged coaxially, with the first sensing body and second sensing body being spaced apart.
According to a feasible embodiment, the PCB comprises a first angle sensing chip and a second angle sensing chip, the first angle sensing chip being a Hall chip, and the second angle sensing chip being an electromagnetic sensing chip, or the second angle sensing chip being a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing and photoelectric sensing.
According to a feasible embodiment, a magnetic field generating and collecting component for angle measurement is provided on the PCB, the magnetic field generating and collecting component for angle measurement being implemented as a coil formed by a printed circuit, being formed by winding according to a certain winding rule, and being arranged substantially in the form of concentric circles.
According to a feasible embodiment, the signal input rotor comprises a first fan blade set, and the signal output rotor comprises a second fan blade set.
According to a feasible embodiment, the signal input rotor and signal output rotor are configured to be arranged on mutually opposed ends of an input shaft and an output shaft of the steering column of the vehicle respectively, and rotate coaxially with the steering column.
According to a feasible embodiment, the PCB comprises a magnetic field generating and collecting component for torque measurement and a torque sensing chip, and the PCB uses electromagnetic induction, resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing,
photoelectric sensing or Hall sensing to sense angle signals of the signal input rotor and signal output rotor.
According to a feasible embodiment, the torque angle sensor comprises a casing that accommodates the torque sensing unit, the angle sensing unit and the PCB. Compared with the prior art, the first sensing body and second sensing body provided on the sensing gear of the torque angle sensor of the present utility model are sensed by the first angle sensing chip and the second angle sensing chip respectively, and it is thereby possible to obtain two independent sets of absolute steering angles of vehicle steering wheel rotation using two different sensing principles respectively; not only is it possible to satisfy the requirement for redundancy in the measurement of steering angles of vehicle steering wheel rotation, with more stable and reliable detection of signals, but also the cost is low and no additional space is taken up.
Brief description of the drawings
A more comprehensive understanding of the above and other aspects of the present utility model will be gained from the following detailed description which refers to the accompanying drawings, which include the following:
Fig. 1 shows a schematic assembly diagram of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a torque sensing unit and an angle sensing unit being shown. Fig. 2 shows a schematic sectional view of assembly of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a torque sensing unit, an angle sensing unit and a PCB being shown.
Fig. 3 shows another schematic diagram of assembly of some of the components of a torque angle sensor configured to detect a steering torque and angle of steering wheel rotation, with a first sensing body and a second sensing body of an angle sensing unit and a PCB being shown.
Detailed description of the utility model
The present utility model is described in detail below through demonstrative embodiments.
Some exemplary embodiments of the present utility model are described in further detail below with reference to the drawings, in order to better understand the basic idea and advantages of the present utility model.
A steering column (not shown) of a vehicle comprises an input shaft from a steering wheel, an output shaft to a steering shaft connector (not shown), and a torsion bar connected between the input shaft and output shaft. When the steering wheel is subjected to a force, the torsion bar deforms; using known mechanical properties of the material of the torsion bar, the steering torque of steering wheel steering can be determined on the basis of the relative rotation angle of the input shaft relative to the output shaft, and this relative rotation angle can characterize the torsional deformation of the torsion bar. The structure of the vehicle steering column is familiar to those skilled in the art, so is not described superfluously here.
Referring to Figs. 1 - 3, a torque angle sensor in an embodiment of the present utility model is mounted on a steering column, and used to detect a steering torque and angle of vehicle steering wheel rotation; the torque angle sensor comprises a torque sensing unit, an angle sensing unit and a PCB 3. The torque sensing unit comprises a signal input rotor 4 and a signal output rotor 1, and the angle sensing unit comprises an intermediate gear 6 and a sensing gear 8, wherein the intermediate gear 6 is meshed with the sensing gear 8, and a first sensing body 61 and a second sensing body 62 are provided on the sensing gear 8.
The signal input rotor 4 comprises a first fan blade set, and the signal output rotor 1 comprises a second fan blade set. The signal input rotor 4 and signal output rotor 1 are configured to be arranged on mutually opposed ends of an input shaft and an output shaft of the steering column of the vehicle respectively; specifically, the signal input rotor 4 is fitted round the input shaft of the steering column and rotates coaxially with the input shaft, while the signal output rotor 1 is fitted round the output shaft of the steering column and rotates coaxially with the output shaft, such that a torque between the input shaft and output shaft can be converted to a torque between the signal input rotor 4 and signal output rotor 1, and measurement of the torque of steering wheel steering can be accomplished by measuring the torque between the signal input rotor 4 and signal output rotor 1.
The first sensing body 61 on the sensing gear 8 is for example a magnet, and the second sensing body 62 is for example a metal rotor; in this embodiment, the second sensing body 62 comprises at least one fan blade. The first sensing body 61 and second sensing body 62 are fixed to the sensing gear 8 by a method of connection such as welding, insert injection moulding or pressing in. The sensing
gear 8, first sensing body 61 and second sensing body 62 are arranged coaxially, with the first sensing body 61 and second sensing body 62 being spaced apart; here, “spaced apart” means that the two bodies are separated by a certain distance and are not in contact with each other. The intermediate gear 6 is fitted round and fixed to the signal output rotor 1; the signal output rotor 1 and intermediate gear 6 can be fixed together by a method of connection such as welding, insert injection moulding or pressing in. As will be understood, in other embodiments, the intermediate gear 6 can be fitted round and fixed to the signal input rotor 4.
In this embodiment, the PCB 3 is fitted round the input shaft, and the PCB 3 comprises a magnetic field generating and collecting component for torque measurement (not shown) and a torque sensing chip 31; when the signal input rotor 4 and signal output rotor 1 rotate, the first fan blade set of the signal input rotor 4 and the second fan blade set of the signal output rotor 1 cut a magnetic field generated by the PCB, and the torque sensing chip 31 on the PCB 3 senses rotation angles of the first fan blade set of the signal input rotor 4 and the second fan blade set of the signal output rotor 1 by the principle of electromagnetic induction, and performs multiplication by a torsion bar coefficient, thereby measuring two intersecting torque and angle signals. The magnetic field generating and collecting component for torque measurement (not shown) is implemented as a coil formed by a printed circuit. The PCB 3 may also employ another conventional method, for example a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing, photoelectric sensing or Hall sensing, to sense angle signals of the signal input rotor 4 and signal output rotor 1.
The PCB 3 comprises a first angle sensing chip 321 and a second angle sensing chip 322. The first angle sensing chip 321 is a Hall chip, and the second angle sensing chip 322 is an electromagnetic sensing chip. A magnetic field generating and collecting component 323 for angle measurement is provided on the PCB 3; the magnetic field generating and collecting component 323 for angle measurement is implemented as a coil formed by a printed circuit, being formed by winding according to a certain winding rule, and being arranged substantially in the form of concentric circles, with the number of turns and the winding rule being determined according to actual needs and parameters. When the input/output shaft rotation angle is greater than 360 degrees, and the intermediate gear 6 drives the sensing gear 8, the first angle sensing chip 321
senses the first sensing body 61 by the principle of Hall sensing, and perceives and calculates an angular position of rotation of the sensing gear 8 and outputs a first “number of turns” following signal to an ECU control unit (not shown); the first “number of turns” following signal and an initial rotation angle signal calculated by the torque sensing chip 31 are coupled inside the ECU control unit by means of a cursor algorithm to precisely calculate an absolute angle signal for vehicle steering wheel rotation that is finally required. Furthermore, the fan blade of the second sensing body 62 cuts a magnetic field generated by the PCB, and the second angle sensing chip 322 on the PCB 3 senses the second sensing body 62 by the principle of electromagnetic induction, perceiving and calculating a rotation angle of the sensing gear 8 and outputting a second “number of turns” following signal to the ECU control unit; the second “number of turns” following signal and an initial rotation angle signal calculated by the torque sensing chip 31 are coupled inside the ECU control unit by means of a cursor algorithm to precisely calculate an absolute angle signal for vehicle steering wheel rotation that is finally required. The second angle sensing chip 322 on the PCB 3 may also be another type of chip, for example a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing and photoelectric sensing, to acquire an angle signal of the second sensing body 62.
The torque angle sensor of the present utility model further comprises a casing (not shown) that accommodates the torque sensing unit, the angle sensing unit and the PCB 3, the form and structure of the casing being determined according to actual needs and parameters; the shape and structure of the casing are familiar to those skilled in the art, so are not described superfluously here.
The first sensing body 61 and second sensing body 62 provided on the sensing gear of the torque angle sensor of the present utility model are sensed by the first angle sensing chip 321 and the second angle sensing chip 322 respectively, and it is thereby possible to obtain two independent sets of absolute steering angles of vehicle steering wheel rotation using two different sensing principles respectively; not only is it possible to satisfy the redundancy requirement for steering angles of vehicle steering wheel rotation, with more stable and reliable detection of signals, but also the cost is low and no additional space is taken up. Although the present utility model has been explained and described here with reference to specific embodiments, the present utility model is not limited to the
details shown. Rather, these details can be amended in various ways within the scope of the present utility model.
Claims
1. Torque angle sensor, mounted on a steering column and configured to detect a steering torque and angle of vehicle steering wheel rotation, the torque angle sensor comprising a torque sensing unit, an angle sensing unit and a PCB (3), characterized in that the torque sensing unit comprises a signal input rotor (4) and a signal output rotor (1), and the angle sensing unit comprises an intermediate gear (6) and a sensing gear (8), wherein the intermediate gear (6) is meshed with the sensing gear (8), and a first sensing body (61) and a second sensing body (62) are provided on the sensing gear (8).
2. Torque angle sensor according to Claim 1, wherein the first sensing body (61) is a magnet, the second sensing body (62) is a metal rotor, and the second sensing body (62) comprises at least one fan blade.
3. Torque angle sensor according to Claim 2, wherein the first sensing body (61) and second sensing body (62) are fixed to the sensing gear (8) by welding, insert injection moulding or a press-in connection method.
4. Torque angle sensor according to Claim 3, wherein the sensing gear (8), first sensing body (61) and second sensing body (62) are arranged coaxially, with the first sensing body (61) and second sensing body (62) being spaced apart.
5. Torque angle sensor according to Claim 4, wherein the PCB (3) comprises a first angle sensing chip (321) and a second angle sensing chip (322), the first angle sensing chip (321) being a Hall chip, and the second angle sensing chip (322) being an electromagnetic sensing chip, or the second angle sensing chip (322) being a chip employing at least one of the principles of resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing and photoelectric sensing.
- 9 - orque angle sensor according to Claim 5, wherein a magnetic field generating and collecting component (323) for angle measurement is provided on the PCB (3), the magnetic field generating and collecting component (323) for angle measurement being implemented as a coil formed by a printed circuit, being formed by winding according to a certain winding rule, and being arranged substantially in the form of concentric circles. orque angle sensor according to Claim 6, wherein the signal input rotor (4) comprises a first fan blade set, and the signal output rotor (1) comprises a second fan blade set. orque angle sensor according to Claim 7, wherein the signal input rotor (4) and signal output rotor (1) are configured to be arranged on mutually opposed ends of an input shaft and an output shaft of the steering column of the vehicle respectively, and rotate coaxially with the steering column. orque angle sensor according to Claim 5, wherein the PCB (3) comprises a magnetic field generating and collecting component for torque measurement and a torque sensing chip (31), and the PCB (3) uses electromagnetic induction, resistance strain sensing, inductive sensing, capacitive sensing, piezoelectric sensing, photoelectric sensing or Hall sensing to sense angle signals of the signal input rotor (4) and signal output rotor (1). Torque angle sensor according to Claim 9, wherein the torque angle sensor comprises a casing that accommodates the torque sensing unit, the angle sensing unit and the PCB (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112021001258.4T DE112021001258T5 (en) | 2020-09-17 | 2021-09-10 | torque angle sensor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022041053.1 | 2020-09-17 | ||
| CN202022041053.1U CN212721465U (en) | 2020-09-17 | 2020-09-17 | Torque angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022058239A1 true WO2022058239A1 (en) | 2022-03-24 |
Family
ID=74943042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2021/074890 WO2022058239A1 (en) | 2020-09-17 | 2021-09-10 | Torque angle sensor |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN212721465U (en) |
| DE (1) | DE112021001258T5 (en) |
| WO (1) | WO2022058239A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526540A1 (en) * | 2022-09-20 | 2024-04-15 | Melecs Ews Gmbh | Device for measuring an absolute angle of rotation of a rotatably mounted element |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210981599U (en) * | 2019-12-18 | 2020-07-10 | 罗伯特·博世有限公司 | Torque angle sensor |
| CN115144028B (en) * | 2022-06-29 | 2024-09-06 | 上海恩威科科技有限公司 | Sensor for vehicle auxiliary driving and sensor measurement method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043074A1 (en) * | 2003-11-04 | 2005-05-12 | Asahi Kasei Emd Corporation | Steering angle detection device |
| CN106679560A (en) * | 2016-12-02 | 2017-05-17 | 安徽沃巴弗电子科技有限公司 | Electromagnetic induction type torque angle sensor |
| US20170166251A1 (en) * | 2015-12-10 | 2017-06-15 | Ksr Ip Holdings Llc | Inductive steering torque and angle sensor |
| US20180372513A1 (en) * | 2017-06-22 | 2018-12-27 | China Automotive Systems, Inc. | Torque and angular sensor |
-
2020
- 2020-09-17 CN CN202022041053.1U patent/CN212721465U/en active Active
-
2021
- 2021-09-10 DE DE112021001258.4T patent/DE112021001258T5/en active Pending
- 2021-09-10 WO PCT/EP2021/074890 patent/WO2022058239A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043074A1 (en) * | 2003-11-04 | 2005-05-12 | Asahi Kasei Emd Corporation | Steering angle detection device |
| US20170166251A1 (en) * | 2015-12-10 | 2017-06-15 | Ksr Ip Holdings Llc | Inductive steering torque and angle sensor |
| CN106679560A (en) * | 2016-12-02 | 2017-05-17 | 安徽沃巴弗电子科技有限公司 | Electromagnetic induction type torque angle sensor |
| US20180372513A1 (en) * | 2017-06-22 | 2018-12-27 | China Automotive Systems, Inc. | Torque and angular sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526540A1 (en) * | 2022-09-20 | 2024-04-15 | Melecs Ews Gmbh | Device for measuring an absolute angle of rotation of a rotatably mounted element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112021001258T5 (en) | 2023-02-23 |
| CN212721465U (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022058239A1 (en) | Torque angle sensor | |
| CN210981599U (en) | Torque angle sensor | |
| US11162857B2 (en) | Torque-angle sensor | |
| US7677114B2 (en) | Torque sensor for electric power steering system | |
| US9500543B2 (en) | Torque angle sensor | |
| US20150090051A1 (en) | Torque Index Sensor | |
| US7762148B2 (en) | Magnetostrictive torque sensor and electric power steering apparatus | |
| CN108698640B (en) | Electric power steering apparatus and method for reducing torque ripple thereof | |
| US20140246267A1 (en) | Steering angle sensor and electric power steering device employing the same | |
| KR20090097378A (en) | The torque angle sensor and the electronic power steering apparatus having the same | |
| EP1516799B1 (en) | Electric power steering apparatus and angle compensating method therefor | |
| KR20090002876A (en) | Torque sensor and electronic power steering apparatus having same | |
| KR101637597B1 (en) | Torque index sensor having structure for magnetic shielding | |
| CN103528601A (en) | Non-contact compound torque and angle position sensor | |
| CN105987779B (en) | Magnetostrictive torque sensor and electric power steering device | |
| KR101640945B1 (en) | Apparatus for sensing steering angle of vehicle | |
| JP5670857B2 (en) | Rotational angular velocity sensor | |
| CN109708788B (en) | Electromagnetic induction type torque rotation angle sensor structure | |
| CN211626378U (en) | Torque angle sensor | |
| CN111442863B (en) | Steering column monitoring system and sensor | |
| KR101859768B1 (en) | Torque Index Sub Angle Sensor | |
| CN211477479U (en) | Torque angle sensor combination | |
| CN201177540Y (en) | Non-contact type torque transducer | |
| KR20130044417A (en) | Torque index sensor | |
| KR20210103231A (en) | Apparatus for detecting steering angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21777451 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21777451 Country of ref document: EP Kind code of ref document: A1 |