CN211477479U - Torque angle sensor combination - Google Patents

Torque angle sensor combination Download PDF

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Publication number
CN211477479U
CN211477479U CN201922438139.5U CN201922438139U CN211477479U CN 211477479 U CN211477479 U CN 211477479U CN 201922438139 U CN201922438139 U CN 201922438139U CN 211477479 U CN211477479 U CN 211477479U
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CN
China
Prior art keywords
torque
sensing unit
pcb
sensing
signal output
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.)
Active
Application number
CN201922438139.5U
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Chinese (zh)
Inventor
梁高峰
M·舍尔
李响
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CN201922438139.5U priority Critical patent/CN211477479U/en
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Publication of CN211477479U publication Critical patent/CN211477479U/en
Priority to DE102020213525.8A priority patent/DE102020213525A1/en
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    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24428—Error prevention
    • G01D5/24433—Error prevention by mechanical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/20—Detecting rotary movement
    • G01D2205/28—The target being driven in rotation by additional gears

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Power Steering Mechanism (AREA)

Abstract

A torque angle sensor assembly is arranged on a steering column of a steering wheel and used for detecting the steering torque and the steering angle of the rotation of the steering wheel of a vehicle, and comprises an upper cover, a torque sensing unit, an angle sensing unit, a shell and a detachable unit, wherein an accommodating space is formed between the upper cover and the shell and used for accommodating the torque sensing unit and the angle sensing unit, the detachable unit is fixed on the shell in a detachable mode and comprises a detachable body, a PCB and a signal output port electrically connected with the PCB, the PCB and the signal output port are respectively fixed on two opposite sides of the detachable body, a conductive terminal of the signal output port is electrically connected with the PCB, the PCB is accommodated in the accommodating space formed between the upper cover and the shell, and a plurality of chips are arranged on the PCB corresponding to the torque sensing unit and the angle sensing unit, the torque sensing unit is used for sensing and acquiring signals of the torque sensing unit and the angle sensing unit.

Description

Torque angle sensor combination
Technical Field
The utility model relates to a sensor assembly, an integrated torque angle sensor assembly that is configured to be used for monitoring the steering situation of vehicle.
Background
The torque angle sensor integrates the torque sensor and the angle sensor together and is used for measuring the rotation angle of a steering wheel of the vehicle and the magnitude of the received torque. The conventional torque angle sensor includes a cover, a torque measuring module, an angle measuring module, a circuit board, a connector, and a housing. When the steering wheel cover is used, the cover body, the torque measuring module, the angle measuring module, the circuit board and the shell are all sleeved on a steering column of the steering wheel, and in order to protect the torque angle sensor, the steering column is further provided with an outer shell and an outer cover body which are used for containing and protecting the torque angle sensor. However, in the use process, if the circuit board has a fault and needs to be repaired or replaced by a new circuit board, one or more elements of the cover body, the torque measuring module, the angle measuring module, the shell, the outer shell and the outer cover body need to be disassembled, or even the steering column needs to be disassembled and the motor for the steering wheel needs to be disassembled, so that the circuit board can be repaired or replaced, and the disassembling and assembling operation is complicated. In addition, an input adapter connector and an output adapter connector are also required to be arranged on the outer cover body, wherein the input adapter connector is used for being electrically connected with a connector of the torque angle sensor, and the output adapter connector is electrically connected with the electronic control device through a cable with connectors arranged at two ends, so that signals of the torque angle sensor are transmitted to the electronic control device. However, during the installation process, since the torque angle sensor is shielded by the outer cover and the outer shell, it is difficult for an installer to accurately and quickly align the input adapter connector on the outer cover with the connector of the torque angle sensor, and thus it is difficult to quickly and accurately complete the insertion of the two connectors.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a moment of torsion angle sensor combination, it can simplify the dismouting flow.
First, according to an aspect of the present invention, it provides a torque angle sensor assembly, installed on a steering column of a steering wheel, for detecting a steering torque and an angle of a steering wheel, comprising an upper cover, a torque sensing unit, an angle sensing unit, a housing and a detachable unit, wherein an accommodating space is formed between the upper cover and the housing for accommodating the torque sensing unit and the angle sensing unit, the detachable unit is detachably fixed on the housing, the detachable unit comprises a detachable body, a PCB, and a signal output port electrically connected to the PCB, wherein the PCB and the signal output port are respectively fixed on two opposite sides of the detachable body, a conductive terminal of the signal output port is electrically connected to the PCB, the PCB is accommodated in the accommodating space formed between the upper cover and the housing, and a signal output port corresponding to the torque sensing unit on the PCB, The angle sensing unit is provided with a plurality of chips and is used for sensing and acquiring signals of the torque sensing unit and the angle sensing unit.
According to one possible embodiment, the torque sensing unit comprises a signal input rotor comprising a first set of blades and a signal output rotor comprising a second set of blades.
According to one possible embodiment, the angle sensing unit comprises an intermediate gear and a sensing gear with a magnet, wherein the intermediate gear is sleeved and fixed on the signal input rotor or the signal output rotor, and the intermediate gear is meshed with the sensing gear, wherein the signal input rotor or the signal output rotor and the intermediate gear are fixed together by at least one of welding, insert molding and pressing.
According to one possible embodiment, the housing is provided with a mounting portion and an opening, the PCB board is received in a receiving space formed between the upper cover and the housing through the opening, the mounting portion is provided near the opening, and at least one of a snap, a slot, a screw hole, a glue and/or a welding material is provided and configured to be assembled with the detachable body.
According to a possible implementation mode, the shell comprises two installation parts which are arranged on two sides of the opening, the installation parts are lug-shaped parts protruding out of the circumferential surface of the shell, screw holes are formed in the lug-shaped parts, the detachable body is correspondingly provided with two convex parts, screw holes are formed in the convex parts, and the convex parts are installed on the installation parts of the shell through screws.
According to one possible embodiment, a seal is provided between the detachable body and the housing.
According to one possible embodiment, the signal output port protrudes outside the housing.
According to one possible embodiment, the PCB board is provided with a C-shaped notch that fits the steering column periphery of the steering wheel.
According to a possible implementation manner, the PCB board includes at least one first chip, and the angle signals of the signal input rotor and the signal output rotor are obtained by at least one of electromagnetic induction, resistance strain type sensing, inductive type sensing, capacitive type sensing, piezoelectric type sensing, photoelectric type sensing, and hall type sensing.
According to a possible embodiment, the PCB board comprises at least one second chip for sensing and acquiring signals of the intermediate gear and the sensing gear.
Compared with the prior art, the utility model discloses the torque angle sensor combination can be very conveniently dismouting and replacement PCB board owing to set up the removable unit, and can dismantle the signal output part that sets up on the unit and directly stretch protruding the periphery at the shell, consequently can directly establish the electricity with controlling means and be connected, does not need extra adaptor connector.
Drawings
The foregoing and other aspects of the invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a perspective exploded view of a steering column of a vehicle and a torque angle sensor combination according to an embodiment of the present invention.
Fig. 2 shows a partially assembled schematic view of a steering column of a vehicle and the torque angle sensor combination shown in fig. 1.
FIG. 3 is a perspective view of the detachable unit of the torque angle sensor assembly shown in FIG. 1.
Detailed Description
The invention is described in detail below by means of exemplary embodiments.
In the following, some exemplary embodiments of the invention will be described in more detail with reference to the accompanying drawings in order to better understand the basic ideas and advantages of the invention.
Referring to fig. 1 to 3, a steering column of a vehicle includes an input shaft 21 from a steering wheel (not shown), an output shaft 22 to a steering shaft connector (not shown), and a torsion bar (not shown) connected between the input shaft 21 and the output shaft 22. When the steering wheel is subjected to a force, the torsion bar deforms, and the steering torque for steering the steering wheel can be determined based on the relative rotation angle of the input shaft 21 with respect to the output shaft 22, which is indicative of torsional deformation of the torsion bar, using the known mechanical properties of the material of the torsion bar.
The torque angle sensor assembly of an embodiment of the present invention is installed on a steering column of a steering wheel for detecting a steering torque and an angle of a vehicle steering wheel, and comprises an upper cover 7, a torque sensing unit, an angle sensing unit, a housing 11 and a detachable unit 100, wherein an accommodating space is formed between the upper cover 7 and the housing 11 for accommodating the torque sensing unit and the angle sensing unit, the detachable unit 100 is detachably fixed on the housing 11, the detachable unit 100 comprises a detachable body 110, a PCB 3 and a signal output port 10 electrically connected to the PCB 3, wherein the PCB 3 and the signal output port 10 are respectively fixed on two opposite sides of the detachable body 110, a conductive terminal 31 of the signal output port 10 is electrically connected to the PCB 3, the PCB 3 is accommodated in the accommodating space formed between the upper cover 7 and the housing 11, the PCB 3 is provided with a plurality of chips corresponding to the torque sensing unit and the angle sensing unit and used for sensing and acquiring signals of the torque sensing unit and the angle sensing unit.
The housing 11 is provided with a mounting portion 111 and an opening 112, the PCB board 3 is received in a receiving space formed between the upper cover and the housing 11 through the opening 112, the mounting portion 111 is provided near the opening 112, is provided with at least one of a snap, a card slot, a screw hole, a glue and/or a welding material (not shown), and is configured to be assembled with the detachable body 110. In this embodiment, the housing 11 includes two mounting portions 111 disposed at two sides of the opening 112, the mounting portions 111 are ear portions protruding out of the circumferential surface of the housing 11, screw holes are disposed on the ear portions, correspondingly, the detachable body 110 is provided with two protrusions 101, screw holes are disposed on the protrusions 101, and the two protrusions are mounted on the mounting portions 111 of the housing 11 by screws. Optionally, a sealing member (not shown) is provided between the detachable body 110 and the housing 11 according to the actual sealing requirements.
The upper cover 7 includes a body 70 and an assembling portion 71. The body 70 has a substantially flat plate shape and is provided with a through hole 700, a steering column of a vehicle is inserted through the through hole 700, the body 70 and the steering column are rotatably mounted together, and in the present embodiment, the input shaft 21 is inserted through the through hole 700.
The assembling portion 71 is a continuous or discontinuous flange extending from the edge of the body 70 along the axial and/or radial direction of the body 70, and is configured to be assembled with the housing 11 to protect other components of the torque angle sensor assembly of the present invention. During assembly, the edge of the housing 11 abuts against the assembly portion 71, and at least one of a snap, a slot, a screw hole, a glue and/or a welding material (not shown) is disposed on the assembly portion 71 according to actual installation requirements, and is assembled with the housing 11. In the present embodiment, the assembling portion 71 is provided with at least one screw hole 710, and correspondingly, the housing 11 is also provided with at least one screw hole, so that the housing 11 abuts against the assembling portion 71 during assembling, and the housing 11 and the upper cover 7 are assembled together by screws. Optionally, a sealing member (not shown) may be provided between the upper cover 7 and the housing 11 according to the actual sealing requirements.
The torque sensing unit comprises a signal input rotor 4 and a signal output rotor 1, wherein the signal input rotor 4 comprises a first fan blade group, and the signal output rotor 1 comprises a second fan blade group. The signal input rotor 4 is sleeved on the input shaft 21 and rotates coaxially with the input shaft 21, the signal output rotor 1 is sleeved on the output shaft 22 and rotates coaxially with the output shaft 22, so that the torque between the input shaft 21 and the output shaft 22 can be converted into the torque between the signal input rotor 4 and the signal output rotor 1, and the torque measurement of steering of the steering wheel can be completed by measuring the torque between the signal input rotor 4 and the signal output rotor 1.
The angle sensing unit comprises a middle gear 6 and a sensing gear 8 with a magnet, wherein the middle gear 6 is sleeved and fixed on the signal output rotor 1 and meshed with the sensing gear 8, and the signal output rotor 1 and the middle gear 6 can be fixed together in a connecting mode of welding, insert injection molding, pressing and the like.
Preferably, in the present embodiment, the PCB board 3 is provided with a C-shaped notch 33 which is matched with the periphery of the input shaft 21. The PCB 3 includes at least one first chip 32, and obtains the angle signals of the signal input rotor 4 and the signal output rotor 1 by at least one of electromagnetic induction, resistance strain sensor, inductive sensor, capacitive sensor, piezoelectric sensor, photoelectric sensor, and hall sensor.
The PCB board 3 includes at least one second chip 34 for measuring the rotation angle of the intermediate gear 6 and the sensing gear 8. When the rotation angle of the input/output shaft is greater than 360 degrees, and the intermediate gear 6 drives the induction gear 8, the second chip 34 will sense and calculate the position of the induction gear 8 and output a path of circle number following signal to the control device (not shown), the signal and the calculated path of initial rotation angle signal of the first chip are coupled and calculated through a vernier algorithm in the control device to obtain the final required accurate angle signal.
The signal output port 10 protrudes out of the housing 11 to establish electrical connection directly with the control device through a cable having connectors at both ends thereof without an additional adaptor connector.
According to the actual installation requirement, the torque angle sensor assembly of an embodiment of the present invention further includes an inner housing 2 for fixing and/or supporting at least one element of the angle sensing unit and/or the torque sensing unit.
The utility model discloses the torque angle sensor combination is owing to set up the unit of dismantling, can dismouting and replacement PCB board very conveniently, and can dismantle the signal output port that sets up on the unit and directly stretch protruding the periphery at the shell, consequently can directly establish the electricity with controlling means and be connected, does not need extra adaptor connector.
Although the invention is illustrated and described herein with reference to specific embodiments, the invention is not intended to be limited to the details shown. Rather, various modifications may be made in the details within the scope of the invention.

Claims (10)

1. A torque angle sensor assembly, mounted on a steering column of a steering wheel, for detecting a steering torque and angle of rotation of the steering wheel of a vehicle, characterized by: the portable electronic device comprises an upper cover (7), a torque sensing unit, an angle sensing unit, a shell (11) and a detachable unit (100), wherein an accommodating space is formed between the upper cover (7) and the shell (11) and used for accommodating the torque sensing unit and the angle sensing unit, the detachable unit (100) is fixed on the shell (11) in a detachable mode, the detachable unit (100) comprises a detachable body (110), a PCB (3) and a signal output port (10) electrically connected with the PCB (3), the PCB (3) and the signal output port (10) are respectively fixed on two opposite sides of the detachable body (110), a conductive terminal (31) of the signal output port (10) is electrically connected with the PCB (3), the PCB (3) is accommodated in the accommodating space formed between the upper cover (7) and the shell (11), and the PCB (3) is provided with the torque sensing unit, the housing (11) and the detachable unit, The angle sensing unit is provided with a plurality of chips and is used for sensing and acquiring signals of the torque sensing unit and the angle sensing unit.
2. The torque angle sensor combination according to claim 1, characterized in that the torque sensing unit comprises a signal input rotor (4) and a signal output rotor (1), the signal input rotor (4) comprising a first set of blades and the signal output rotor (1) comprising a second set of blades.
3. The torque angle sensor combination according to claim 2, wherein the angle sensing unit comprises an intermediate gear (6) and a sensing gear (8) with a magnet, wherein the intermediate gear (6) is sleeved and fixed on the signal input rotor (4) or the signal output rotor (1), the intermediate gear (6) is meshed with the sensing gear (8), and wherein the signal input rotor (4) or the signal output rotor (1) and the intermediate gear (6) are fixed together by at least one of welding, insert molding and pressing.
4. The torque angle sensor combination according to claim 3, characterized in that the housing (11) is provided with a mounting portion (111) and an opening (112), the PCB board (3) being received in a receiving space formed between the upper cover (7) and the housing (11) through the opening (112), the mounting portion (111) being provided in the vicinity of the opening (112), being provided with at least one of a snap, a slot, a screw hole, glue and/or a welding material, configured to be assembled with the detachable body (110).
5. The torque angle sensor combination according to claim 4, characterized in that the housing (11) comprises two mounting portions (111) arranged on both sides of the opening (112), the mounting portions (111) are ear-shaped portions protruding out of the circumferential surface of the housing (11), screw holes are arranged on the ear-shaped portions, the detachable body (110) is correspondingly provided with two convex portions (101), the convex portions (101) are provided with screw holes, and the detachable body is mounted on the mounting portions (111) of the housing (11) by screws.
6. Torque angle sensor combination according to claim 5, characterized in that a seal is provided between the detachable body (110) and the housing (11).
7. Torque angle sensor combination according to claim 6, characterized in that said signal output port (10) protrudes outside the housing (11).
8. Torque angle sensor combination according to claim 7, characterized in that said PCB (3) is provided with a C-shaped notch (33) cooperating with the steering column periphery of said steering wheel.
9. The torque angle sensor combination according to claim 8, characterized in that the PCB board (3) comprises at least one first chip (32) for obtaining the angle signals of the signal input rotor (4) and the signal output rotor (1) by at least one of electromagnetic induction, resistive strain gauge sensing, inductive sensing, capacitive sensing, piezoelectric sensing, photoelectric sensing and hall sensing.
10. The torque angle sensor combination according to claim 9, characterized in that the PCB board (3) comprises at least one second chip (34) to sense and collect the signals of the intermediate gear (6) and the sensing gear (8).
CN201922438139.5U 2019-12-30 2019-12-30 Torque angle sensor combination Active CN211477479U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201922438139.5U CN211477479U (en) 2019-12-30 2019-12-30 Torque angle sensor combination
DE102020213525.8A DE102020213525A1 (en) 2019-12-30 2020-10-28 Torque and angle sensor assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922438139.5U CN211477479U (en) 2019-12-30 2019-12-30 Torque angle sensor combination

Publications (1)

Publication Number Publication Date
CN211477479U true CN211477479U (en) 2020-09-11

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CN201922438139.5U Active CN211477479U (en) 2019-12-30 2019-12-30 Torque angle sensor combination

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DE (1) DE102020213525A1 (en)

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* Cited by examiner, † Cited by third party
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

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