WO2016173702A1 - Dispositif de mesure de couple applique a un arbre rotatif et procede de mesure de couple associe - Google Patents
Dispositif de mesure de couple applique a un arbre rotatif et procede de mesure de couple associe Download PDFInfo
- Publication number
- WO2016173702A1 WO2016173702A1 PCT/EP2016/000657 EP2016000657W WO2016173702A1 WO 2016173702 A1 WO2016173702 A1 WO 2016173702A1 EP 2016000657 W EP2016000657 W EP 2016000657W WO 2016173702 A1 WO2016173702 A1 WO 2016173702A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- electrode
- shaft
- cylinder
- integral
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
- B62J45/411—Torque sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
- B62J45/421—Sensor arrangements; Mounting thereof characterised by mounting at the pedal crank
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
-
- 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
- G01L3/106—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving electrostatic means
Definitions
- Torque measuring device applied to a rotary shaft
- the invention relates to a device for measuring torque applied to a rotating shaft, and more particularly to the shaft of a crankset equipping an electric bicycle as well as a method of measuring associated torque.
- the present invention finds a particularly advantageous, although in no way limiting, application in torque determining devices embedded in cycles.
- Said part is generally integrated in a mechanical system comprising several elements for transmitting mechanical energy from the input to the output of said mechanical system.
- Such devices are used, for example, to measure the torque applied to a transmission shaft, positioned at the motor output, within a user transport vehicle.
- these devices make it possible, for example, to control that the engine transfers, according to a prescribed performance objective, its power to other elements of said vehicle, such as for example the wheels, the alternator etc.
- the present invention refers to a cycle-type transport vehicle, such as a bicycle, for which a user exerts a force on pedals connected to a crank axle rotated by said force.
- such an embedded device comprises, in addition to a specific support for its installation in said means of transport:
- Sensitive elements adapted to provide a signal representative of a stress experienced by said at least one sensitive element under the effect of said pair
- Means for conveying said signal to a processing module configured to determine said torque as a function of said signal there are several types of devices for determining the torque applied to a rotating axis. In general, they proceed to the detection of mechanical deformations of the axis, for example of the extension or contraction type, or even of certain quantities related to these deformations, generated by said torque by means of strain gages. .
- the sensitive elements such as said strain gages, are generally in direct contact with the axis in rotation, and thus work in torsion. The latter are therefore subject to strong constraints making the final implementation and use of the device is not robust.
- Such a configuration also applies to said conveyance means, for which it is then necessary to take into account, in particular, the phenomena of wear and periodic maintenance.
- More recent systems such as differential-coupling rotary transformers, combine sensitive elements and routing means both without contact, but nevertheless remain dependent on a complex electronic medium, and consecutively difficult to embark on. an electric bike.
- the present invention aims to remedy all or part of the disadvantages of the prior art, including those described above, by proposing a solution that allows to have a torque determining device applied to a rotating axis of a vehicle, and having sensitive elements, without contact with said axis in rotation, adapted to provide a measurable signal by a processing module itself without contact with said axis in rotation.
- the invention proposes a device for measuring torque applied to a rotary shaft comprising:
- ⁇ Torque transmission means comprising a first part integral with the shaft and receiving the torque applied to said shaft, and a second part integral with the first part and able to move relative to the first part when a pair is applied to the first part,
- At least a first integral electrode of the second part At least a first integral electrode of the second part
- a first support integral with the second part, comprising at least one second electrode, facing the first electrode, when no torque is applied to the shaft, the first and the second electrodes generating a second electrode, first capacity whose value varies according to a displacement of the second part,
- Means for converting the first capacity into a value of the torque applied to the shaft comprise:
- a resonant coil connected to the second electrode, forming with the second electrode a passive resonant circuit having a resonance frequency dependent on the first capacitor
- a second support located opposite the first support, and remote from said first support comprising an exciter coil capable of generating an electromagnetic field for the resonant coil and adapted to receive an induced magnetic field from the resonant coil,
- Means for receiving an electromagnetic field whose resonant frequency depends on the torque applied to the shaft
- Switching means electrically connected on one side to the exciter coil and on the other side, either to the transmitting means or to the receiving means.
- the conversion means comprise a microcontroller electrically connected on one side to the receiving means and the transmitting means.
- the transmission means having a shape of a cylinder surrounding the rotary shaft
- the second part is a part of the cylinder between two grooves along a longitudinal axis of the cylinder. .
- Said second part starts from a transverse face of the cylinder called free end and extends to a connected end (the cylinder), located opposite of said free end.
- the two grooves each end at their end connected by an obviously rounded shape.
- a length of the grooves may be between 30% and 70% of a length of the transmission means.
- the first support comprises a two-sided printed circuit:
- the first face comprises the first electrode
- the second face comprises the resonant coil electrically connected on one side to the first electrode via a via and on the other side electrically connected to ground.
- the transmission means being a cylinder having an outer diameter and an inner diameter:
- the first electrode is situated on a transverse face of the cylinder,
- the first support is in the form of a flat ring, of outside diameter equal to the outside diameter of the cylinder and of inside diameter equal to the inside diameter of the cylinder.
- the invention also relates to a method for measuring a torque applied to a rotary shaft, characterized in that it comprises:
- Step 1 mounting on the rotary shaft torque transmission means comprising a first portion secured to the shaft and receiving the torque applied to said shaft, and a second portion secured to the first portion and adapted to move relative to in the first part when a couple is applied to the first part,
- Step 2 fixing a first electrode integral with the first part
- Step 3 mounting of a first support, secured to the second part comprising at least a second electrode, facing the first electrode, when no torque is applied to the shaft, the first and the second electrodes generating a first capacitance whose value varies according to a displacement of the second part,
- Step 4 measurement of the first capacity, when a torque is applied to the shaft, by measuring means.
- Step 5 calculation of the torque applied to the shaft according to the first capacity by conversion means.
- the invention applies to any electric bicycle, comprising a measuring device according to any one of the characteristics listed above.
- FIG. 1a a schematic representation of an electric bicycle
- FIG. 2 a schematic representation of an exemplary embodiment of a torque measuring device applied to the bottom bracket, according to the invention.
- - Figure 3 a schematic representation of the transmission means of the torque measuring device according to the invention.
- - Figure 4 a schematic representation of the displacement of the first electrode relative to the second electrode when a torque is applied to the transmission means.
- FIG. 5 a schematic representation of the first support of the torque measuring device according to the invention.
- FIG. 1a is shown, an electric bicycle V provided with a casing 1 pedal assistance system, fixed around a rotary shaft, here fixed around the bottom bracket 2a.
- Said casing 1 comprises:
- crankset 2a having at both ends a crank arm and a pedal 2,
- transmission means 2b ' of cylindrical shape, integral with the rotary shaft constituting the axis of the crankset 2a, for example surrounding said axis, the axis of the crankset 2a is preferably embedded in the transmission means 2b' or the axis of the crankset 2a and the transmission means 2b 'are locally welded, said transmission means 2b' and the axis of the crankset 2a being concentric.
- An electric assistance motor 3 driving the crank axle 2a via an assist transmission pinion 3a and an assistance transmission crown 2d,
- An electronic card 5 of assistance control controlling via a signal S the electric assistance motor 3.
- the electric bicycle V comprises a torque sensor measuring the intensity of the torque C on the crank axle 2a, coming from the support of the cyclist on the pedals 2.
- This torque sensor is connected to a management unit included in the electronic control card 5 controlling the operation of the electric assist motor 3.
- the management unit which receives the information on the value of the torque applied, controls the operation of the electric motor 3, which then drives the axis of the pedal 2a, thus relieving the cyclist in his effort.
- the torque sensors of the prior art have several disadvantages, presented above.
- the invention proposes that the electric bicycle V be equipped with a torque measuring device D, included in the casing 1 of the pedal assisting system and as illustrated in FIGS. 1b and 2.
- Said torque measuring device D comprises:
- Transmission means 2b of the torque C comprising a first portion R1 integral with the shaft, that is to say the axis of the crankset 2a and receiving the torque C applied to said shaft and a second portion F integral with the first part R1 and able to move relative to the first part R1 when a torque C is applied to the first part R1, ⁇ at least a first electrode E1 integral with the second part F,
- the transmission means 2b integral with the axis of the crankset 2a, cause, as in the prior art on a first side a plate 2c on which is a chain or a belt 4 connected to the rear wheel of the electric bike V.
- the torque measuring device D on the opposite side to the first side, is the torque measuring device D (see Figure 1b).
- the transmission means 2b are made of metallic material such as an aluminum-based alloy having a modulus of elasticity lower than that of a steel.
- the first part R1 of the transmission means 2b is directly integral with the axis of the crankset 2a, for example, the first part R1 is welded to the axis of the crankset 2a and directly receives the torque C applied to the axis of the crankset 2a .
- the second part F is a part of the transmission means 2b, which is integral with the first part R1.
- Said second portion F may be a cut-out portion in the transmission means 2b, as illustrated in FIGS. 2 and 3.
- a cut-off portion is understood to mean a portion which comprises two longitudinal grooves D1, D2, that is to say oriented according to a longitudinal axis XX 'of the transmission means 2b.
- the transmission means 2b is in the form of a cylinder of thickness e, of length L, and comprising an outer diameter D ext and an inner diameter D int , the grooves D1, D2 are made in all the thickness e of the cylinder.
- Said thickness e may be equal to a few millimeters, for example between 4 and 6 mm.
- These longitudinal grooves D1, D2 extend over a length L1, starting from a transverse face of the transmission means 2b, located on the side where the torque measuring device C is located, that is to say on the opposite side to the first side.
- the transverse face is perpendicular to the longitudinal axis XX 'of the transmission means 2b.
- the grooves D1, D2 extend over a portion (L1) of the length L of the transmission means 2b.
- the length L1 of said grooves D1, D2 is between 30% and 70% of the length L of said transmission means, and is equal to, for example 50% of the length L of said transmission means 2b.
- Each of these two grooves D1, D2 has a width I of between 1 and 5 mm, for example.
- the width I is defined as a function of the displacement Ad of the second part F which it is desired to measure (this is explained below).
- This second part F has a first free end T1 on the side of the transverse face of the transmission means 2b, and a second end T2 linked to the first part R1 (see Figure 2).
- free end is meant an end that is not linked to the first part R1.
- connected end, an end or the second portion F is integral with the first portion R and the transmission means 2b.
- the first and second grooves D1, D2 terminate by forming recesses Z for example of rounded shape wider than the grooves D1, D2.
- the transmission means 2b comprise two second parts F preferably diametrically opposed. Between the two second parts F, there are two first portions R1, also preferably diametrically opposed. Said first two portions R1 are directly integral with the axis of the crankset 2a, for example welded to said axis and receive the torque C applied to the axis. The first two parts F are not integral with the axis of the crankset 2a, they can move each relative to the first two parts R1.
- the second part F, on the transverse face of the transmission means 2b, that is to say on the side of the first free end T1 comprises a sensing element 2f (see FIG. 2), of a capacitive surface type, for example a first electrode E1.
- electrode means a conductive metal plate, for example copper.
- the first support 2e is fixed on the first part R1 of the transverse face of the transmission means 2b.
- Said first support 2e is in the form of a flat ring with the same internal diameters D int and outside D ex t that the transmission means 2b.
- the first support 2e is held on the first portion R1 by two screws V1, V2 located on the circumference of the first support 2e 1 solidarisant the first support 2e to the transmission means 2b at said first portion R1.
- the second part F not being secured to the transmitter support 2a, it can therefore move relative to the first part R1 and therefore also with respect to the first support 2e
- the first support 2e comprises a second electrode E3, which when no torque C is applied to the axis of the pedal 2a, is located vis-à-vis the first electrode E1. This is illustrated in Figure 4.
- the first and second electrodes E1 and E3 are made of copper, for example of rectangular shape, or in the form of a circular arc or ring portion (of opening angle, for example between 5 ° and 20 °) and of identical dimensions.
- the value of said first capacitor C1 is measured using measuring means M1.
- These measuring means M1 comprise a resonance coil B1 of inductance L1, connected to the second electrode E3 thereby forming an electrical circuit passive resonant of the "inductance-capacitance” type, also called “LC circuit".
- the term “passive” circuit means an electronic circuit not supplied with voltage.
- the passive resonant circuit LC has its own resonance frequency f R dependent on the value of the inductance L1 of said resonance coil B1, which is a fixed value and the first capacitor C1 of said resonant circuit.
- the resonance coil B1 is circular and comprises a number of windings N of copper wire, wound in a circular manner on the periphery of the first support 2e (see FIG.
- the first support 2e consists of a "double-sided" printed electronic circuit, that is to say a circuit printed on both sides A1, A2, of the first support 2e.
- first face A1 On a first face A1, is the second electrode E3 copper.
- second face A2 On a second face A2, is the resonance coil B1, connected on one side to the second electrode E3 by a via V X1 through the first and second side A1, A2 and the other side connected to the ground by a via V X2 , which is itself connected to a fixing screw V1.
- the measuring means M1 also comprise a second support 2f which is remote and disjoint from the first support 2e.
- the second support 2f is located vis-à-vis the first support 2e, preferably the first and the second support 2e, 2f are in parallel planes between them.
- the second support 2f is for example, included on the electronic control card 5 assistance, located at the bottom of the crankset axis 2a.
- the second support 2f comprises an exciter coil B2.
- the exciter coil B2 is circular, of the same dimensions as the resonance coil B1, and comprising the same number N of copper wire windings.
- the exciter coil B2 is capable of generating an electromagnetic field in the direction of the resonant coil B1, and is able to receive back an electromagnetic field induced from the resonant coil B1.
- the measuring means M1 of the first capacitor C1 furthermore comprise emission means E of an electromagnetic field B1 and means for receiving R of an electromagnetic field, as well as switching means under the form of a multiplexer MUX connected on one side to the exciter coil B2 and the other side is emission means E, or the receiving means R connected in parallel.
- the transmission means E comprise an emission circuit E.
- the reception means R comprise a reception circuit R.
- the conversion means M2 of the first capacitor C1 into a torque value C applied to the shaft comprise a microcontroller ⁇ electrically connected on one side to the emitter E and receiver R circuits and on the other side to the electronic card 5 of assistance command.
- the multiplexer MUX operates as a switch, in a first position, it is electrically connected to the emitter circuit E, and in a second position it is electrically connected to the receiver circuit R.
- the microcontroller ⁇ controls the operation of the multiplexer MUX, and its frequency of switching between the first and the second position.
- the emitter circuit E consists, for example, in a voltage-current amplifier integrating a filter, which receives a clock signal from the microcontroller ⁇ .
- Said clock signal has a frequency variable and controllable by the microcontroller ⁇ .
- the clock signal is amplified, and filtered by the amplifier and the filter of the emitter circuit E and is converted into current.
- Said current feeds the exciter coil B2, inducing the creation of an excitation magnetic field in the direction of the resonance coil B1.
- the microcontroller ⁇ integrates a frequency scanning function making it possible to vary the frequency of the clock signal sent to the emitter circuit E.
- Said frequency of the clock signal controls the frequency of the excitation current sent to the excitation coil B2 and therefore the frequency of the excitation magnetic field.
- the reception circuit R comprises, for example, a voltage amplifier receiving as input a voltage representative of the magnetomotive force coming from the exciter coil B2.
- the exciter coil B2 behaves as an electromagnetic field receiver coil.
- the exciter coil B2 then receives the induced electromagnetic field sent by the resonant coil B1, in response to the electromagnetic field previously sent by the exciter coil B1.
- the receiver circuit R then receives a voltage which is an image of the electromagnetic field received by the exciter coil B2. Said voltage is then amplified by the receiver circuit R and then transmitted to the microcontroller ⁇ which deduces the resonance frequency f R of the LC circuit.
- a digital function integrated in the microcontroller ⁇ analyzes the received voltage signal in order to find the frequency for which the voltage amplitude is greatest. This frequency corresponds to the resonance frequency f R of the resonant coil B2. _
- the multiplexer MUX, the microcontroller ⁇ , the emitter circuit E and the receiver circuit R can be integrated in the electronic control board 5 assistance, which allows to control the electric assist motor 3.
- the microcontroller ⁇ is connected to the management unit of the electronic control board 5 assistance.
- the control electronic card 5 comprises functions, known to those skilled in the art for triggering and driving the power supply of the electric assist motor 3 according to predetermined conditions. The purpose of said functions being to ensure that the electric assist motor 3 provides a support torque if and only if the cyclist is in pedaling action, that is to say, applying a torque on the pedals 2, which is the operation of an electric bike V.
- the pair C is directly received by the first part R1.
- the torque C thus applied generates a force F1 at the periphery of the second part F, which causes a lateral displacement Ad (indicated by the arrow d in FIG. 3) of the second part F with respect to the first part R1, the F1 force being defined by:
- the second part F then behaves mechanically like a beam that moves with the force F1.
- the second part F undergoes a lateral displacement Ad relative to the first part R1 and also with respect to the first support 2e.
- k f constant dependent on the dimensions of the second part F and the material of the second part F.
- the new common surface S C 2 between the first and second electrodes E1, E3 is also a function of the force F1 applied to the second part F.
- the invention resides in the fact that this new first capacitance C1 'is proportional to the lateral displacement Ad of the first electrode E1, and therefore to the force F1 applied to the second part F and therefore also proportional to the torque C applied to the pedal axle 2a.
- the torque measuring device By measuring the value of said new first capacitor C1 ', the torque measuring device according to the invention makes it possible to obtain the value of the torque C applied to the axis of the crankset 2a. This is explained below.
- This new first capacitance C1 ' modifies the value of the resonance frequency f R ' of the LC circuit of the first emitter 2, the LC circuit then operating with a new resonance frequency f R.
- the measuring means M1 measure the first capacitor C1, and therefore the value of the new first capacitor C1 'via the new resonance frequency f R of the circuit LC.
- the measuring means M1 transmit the new resonance frequency f R > to the conversion means which deduce the torque C applied to the axis of the pedal 2a as explained below.
- the multiplexer MUX is in the first position, and the exciter coil B2 generates, using the emitter circuit E connected to the microcontroller ⁇ , an electromagnetic field, which is received by the resonant coil B1.
- the resonant coil B1 generates in return towards the exciter coil B2, an electromagnetic field induced at the new resonance frequency f R -.
- the multiplexer MUX is in the second position and the electromagnetic field received by the exciter coil B2 from the resonant coil B1 changes the voltage across said exciter coil B2, said voltage is received by the receiving circuit R then measured by the microcontroller ⁇ . From this voltage, the microcontroller ⁇ derives the new resonance frequency f R -, the inductance L1 of the resonant coil B1 being known, the new first capacitor C1 'can be calculated by the microcontroller ⁇ .
- the width of the first and second electrodes E1, E3 the displacement Ad of the first electrode E1 with respect to the second electrode E3, that is to say the displacement Ad of the sensitive element F is equal to:
- the lateral displacement Ad is a function of the force F1 applied:
- the constant k F can be calculated as follows: . .
- the microcontroller ⁇ sends the value of the torque C that it has thus calculated to the management unit included in the electronic control card 5, to trigger the start of the electric motor assistance 3, if the value of said torque C exceeds a predetermined threshold.
- the invention also relates to a method of measuring torque, using the torque measuring device D described above.
- the method of measuring torque comprises the following steps:
- Step 1 mounting on the rotary shaft transmission means 2b of the pair comprising, a first integral portion R1 of the shaft and receiving the torque C applied to said shaft 2a, and a second portion F integral with the first portion R1 and adapted to move relative to the first part R1 when a torque C is applied to the first part 1,
- Step 2 fixing a first electrode integral with the first part F
- Step 3 mounting of a first support 2e, integral with the second portion R1 comprising at least one second electrode E3, facing the first electrode E1, when no torque C is applied to the first electrode E1.
- the first and the second electrodes E1, E3 generating a first capacitor C1 whose value varies according to a displacement Ad of the second part F
- Step 4 measurement of the first capacitance C1 ', when a torque C is applied to the shaft, by the measuring means M1,
- Step 5 calculation of the value of the torque C applied to the shaft 2a as a function of the first capacitor C1 by the conversion means M2.
- the torque measuring device according to the invention therefore makes it possible to measure the torque applied to a rotary shaft in a simple, reliable and robust manner.
- the advantage of the invention lies in the use of a capacitive sensor, a resonance coil, and an exciter coil, and electronic components (receiver and transmitter circuits, multiplexer) inexpensive compared to the sensors torque pair of the prior art to determine, without wired connection with the rotary shaft, the torque applied to it.
- the invention uses for this purpose, judiciously, the capacity, measured using a resonant frequency.
- the invention is not limited to the means for measuring the first capacitance C1, described above, that is to say using the resonance frequency of the circuit "LC”, when the capacitor C1 is electrically connected to a resonance coil, but applies to all measuring means of the first capacitor C1, this being representative of the torque C applied to the axis of the pedal 2a.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Balance (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/569,014 US10494054B2 (en) | 2015-04-30 | 2016-04-26 | Device for measuring torque applied to a rotary shaft and associated torque measurement method |
CN201680038978.4A CN107787445B (zh) | 2015-04-30 | 2016-04-26 | 用于测量施加到旋转轴的扭矩的测量装置和相关的扭矩测量方法 |
KR1020177034644A KR102441843B1 (ko) | 2015-04-30 | 2016-04-26 | 회전 샤프트에 인가되는 토크를 측정하는 장치 및 관련된 토크 측정 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1553907A FR3035712B1 (fr) | 2015-04-30 | 2015-04-30 | Dispositif de mesure de couple applique a un arbre rotatif et procede de mesure de couple associe |
FR1553907 | 2015-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016173702A1 true WO2016173702A1 (fr) | 2016-11-03 |
Family
ID=53404780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/000657 WO2016173702A1 (fr) | 2015-04-30 | 2016-04-26 | Dispositif de mesure de couple applique a un arbre rotatif et procede de mesure de couple associe |
Country Status (5)
Country | Link |
---|---|
US (1) | US10494054B2 (fr) |
KR (1) | KR102441843B1 (fr) |
CN (1) | CN107787445B (fr) |
FR (1) | FR3035712B1 (fr) |
WO (1) | WO2016173702A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017100540A (ja) * | 2015-12-01 | 2017-06-08 | ヤマハ発動機株式会社 | 電動補助自転車 |
WO2019220785A1 (fr) * | 2018-05-16 | 2019-11-21 | 本田技研工業株式会社 | Dispositif électrique modifiable pour vélo et vélo |
US10962100B2 (en) * | 2019-07-24 | 2021-03-30 | Denso International .America, Inc. | Engine pulley movement detection |
CN113237585B (zh) * | 2021-03-29 | 2022-08-23 | 湖南久钰电子有限公司 | 电容式扭矩传感器及智能车辆监测系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1026492A2 (fr) * | 1999-02-01 | 2000-08-09 | Baumer Electric Ag | Dispositif sans fil de mesure de couple et capteur pour ce dispositif |
DE10006534A1 (de) * | 2000-02-15 | 2001-10-18 | Siemens Ag | Verfahren und Sensorelement zur Verformungsmessung |
DE102011006644A1 (de) * | 2011-04-01 | 2012-10-04 | Robert Bosch Gmbh | Kurbeltrieb für ein Fahrzeug |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW371646B (en) * | 1996-09-26 | 1999-10-11 | Mistubishi Heavy Ind Ltd | Driving unit for an electric motor driven bicycle |
IL159651A0 (en) | 2003-12-30 | 2004-06-01 | Nexense Ltd | Method and apparatus for measuring torque |
JP2008107297A (ja) | 2006-10-27 | 2008-05-08 | Toshiba Corp | 磁歪式トルクセンサ |
WO2008109914A2 (fr) * | 2006-10-30 | 2008-09-18 | Robert Masterton Smith | Procédé et appareil de mesure et de surveillance du couple exercé pendant le pédalage d'une bicyclette ou équipement similaire |
DE102010041889A1 (de) | 2010-10-01 | 2012-04-05 | Continental Automotive Gmbh | Diagnose-Verfahren für einen Torsionsdämpfer in einem Antriebsstrang eines Fahrzeugs |
FR2975461B1 (fr) | 2011-05-20 | 2014-10-17 | Daniel Greff | Nouveau dispositif d'eclairage et ses utilisations dans le domaine public et prive |
CN102826186B (zh) | 2012-07-28 | 2014-02-05 | 成都宽和科技有限责任公司 | 助力自行车用多磁块位置和磁通量可调节的转盘式传感器 |
US8919478B2 (en) * | 2013-04-10 | 2014-12-30 | Shimano Inc. | Bicycle drive unit |
CN103278274B (zh) | 2013-04-24 | 2015-01-14 | 中北大学 | 基于电容耦合的旋转件扭矩测试装置 |
CN103560632B (zh) * | 2013-11-04 | 2016-04-06 | 东南大学 | 一种基于电能无线传输的无刷励磁机构 |
-
2015
- 2015-04-30 FR FR1553907A patent/FR3035712B1/fr active Active
-
2016
- 2016-04-26 US US15/569,014 patent/US10494054B2/en active Active
- 2016-04-26 WO PCT/EP2016/000657 patent/WO2016173702A1/fr active Application Filing
- 2016-04-26 KR KR1020177034644A patent/KR102441843B1/ko active IP Right Grant
- 2016-04-26 CN CN201680038978.4A patent/CN107787445B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1026492A2 (fr) * | 1999-02-01 | 2000-08-09 | Baumer Electric Ag | Dispositif sans fil de mesure de couple et capteur pour ce dispositif |
DE10006534A1 (de) * | 2000-02-15 | 2001-10-18 | Siemens Ag | Verfahren und Sensorelement zur Verformungsmessung |
DE102011006644A1 (de) * | 2011-04-01 | 2012-10-04 | Robert Bosch Gmbh | Kurbeltrieb für ein Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
US10494054B2 (en) | 2019-12-03 |
US20180127054A1 (en) | 2018-05-10 |
FR3035712A1 (fr) | 2016-11-04 |
CN107787445A (zh) | 2018-03-09 |
FR3035712B1 (fr) | 2018-07-06 |
KR102441843B1 (ko) | 2022-09-07 |
CN107787445B (zh) | 2020-05-19 |
KR20170141243A (ko) | 2017-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016173702A1 (fr) | Dispositif de mesure de couple applique a un arbre rotatif et procede de mesure de couple associe | |
EP1744163B1 (fr) | Tachymètre pour roue d'aéronef | |
EP1518126B1 (fr) | Dispositif de palier a roulement equipe d'un capteur et moteur electrique ainsi equipe | |
FR2759792A1 (fr) | Piece d'horlogerie comportant un dispositif de detection sans contact | |
FR2868749A1 (fr) | Systeme de direction assistee electrique employant un capteur de couple | |
EP1053456B1 (fr) | Capteur de couple et colonne de direction pourvue d'un tel capteur | |
EP2000333B1 (fr) | Atterrisseur équipé d'un dispositif de communication entre une roue et l'atterrisseur | |
WO2019158871A1 (fr) | Capteur de couple intégrant un capteur de position angulaire d'un élément en rotation | |
EP0682238B1 (fr) | Couplemètre magnétique pour mesures absolues de torsion et de couple | |
FR2868526A1 (fr) | Capteur de position d'un actionneur de soupape d'un moteur a combustion interne | |
WO2019081834A1 (fr) | Capteur de couple pour élément en rotation utilisant un couplage mécanique à friction | |
FR2816047A1 (fr) | Dispositif de palier a roulement instrumente, notamment pour volant de commande | |
FR3015684A1 (fr) | Dispositif de mesure de l'usure d'une rotule, rotule integrant ce dispositif et methode de mesure de l'usure d'une telle rotule | |
EP0474562A2 (fr) | Manchon de roulement à codeur pour dispositif capteur | |
FR2757704A1 (fr) | Ensemble a generatrice electrique monte sur un essieu | |
EP3827502A1 (fr) | Dispositif roulant adapté à rouler sur un sol | |
CA2998046A1 (fr) | Direction assistee de vehicule automobile avec un moteur electromagnetique a flux magnetique axial et une alimentation electrique des stators du moteur se faisant en parallele a redondance | |
WO2016169645A1 (fr) | Capteur de mesure du couple d'un arbre d'entrainement | |
FR2833663A1 (fr) | Roulement comprenant un ensemble de transmission d'informations sans fil | |
WO2004109234A2 (fr) | Capteur de position angulaire absolue sur 360° d’un organe rotatif | |
EP0966049B1 (fr) | Moteur piézo-électrique avec capteur de position intégré | |
FR2894055A1 (fr) | Equipement d'extremite d'essieu de vehicule, notamment aeronef. | |
WO2022018366A1 (fr) | Organe d'entrainement de cycle presentant un capteur de couple | |
BE1012574A6 (fr) | Systeme de transmission comprenant un dispositif de detection de rupture de la courroie de transmission, en particulier de la courroie de transmission entre le vilebrequin et l'arbre a cames d'un moteur. | |
WO2020001903A1 (fr) | Moto-reducteur, systeme d'essuyage et procede de commande associes |
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: 16722785 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15569014 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20177034644 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16722785 Country of ref document: EP Kind code of ref document: A1 |