# US 11,307,106 B2 · Torque measurement system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,106 B2 - Document ID: US11307106B2 - Status: Granted - Kind: B2 - Application number: 16/420,243 - Filed: 2019-05-23 - Published: 2020-11-26 - Granted: 2022-04-19 - Earliest claimed: 2019-05-23 - Assignees: City University of Hong Kong - Applicants: City University of Hong Kong - Inventors: Zhengbao Yang - Web page: https://patentgrep.com/patent/US11307106B2 ## CPC - G01L 3/101: {involving magnetic or electromagnetic means} - G01L 3/108: {involving resistance strain gauges} - G01L 3/02: Rotary-transmission dynamometers - G01L 3/04: wherein the torque-transmitting element comprises a torsionally-flexible shaft - G01L 25/003: {for measuring torque} - H02J 50/001: {Energy harvesting or scavenging} - H02J 50/10: using inductive coupling - H02J 50/12: of the resonant type - H02K 11/24: Devices for sensing torque, or actuated thereby (H02K11/27 takes precedence) - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract A system and a method for a torque measurement system for a vehicle having a rotatable member connecting an engine to a torque converter and rotatable about a rotating axis, the torque measurement system including a strain measuring module arranged to measure the strain on the rotatable member; a control module arranged to process the data associated with the strain measurement; and an energy generating module arranged to generate electricity through the movement of the rotatable member, thereby powering the torque measurement system. ## Claims ### Claim 1 A torque measurement system for a vehicle having a rotatable member connecting an engine to a torque converter and rotatable about a rotating axis, the torque measurement system comprising: a strain measuring module arranged to measure a strain on the rotatable member; a control module arranged to process the data associated with the measured strain; and an energy generating module arranged to generate electricity through the relative movement between the engine and the rotatable member or the torque converter, thereby powering the torque measurement system, wherein the energy generation module is arranged to generate a current from a deformation of the rotatable member. ### Claim 2 (depends on 1) A torque measurement system in accordance with claim 1, wherein the energy generating module includes a pair of magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on one of the engine and a transmission. ### Claim 3 (depends on 2) A torque measurement system in accordance with claim 2, wherein the energy generating module includes first and second magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on the engine or the transmission. ### Claim 4 (depends on 3) A torque measurement system in accordance with claim 3, wherein the first magnetic element includes a coil and core assembly. ### Claim 5 (depends on 3) A torque measurement system in accordance with claim 3, wherein the second magnetic element includes a magnetic array formed by a plurality of magnets. ### Claim 6 (depends on 5) A torque measurement system in accordance with claim 5, wherein two adjacent magnets of the plurality of magnets are provided with opposite polarity. ### Claim 7 (depends on 5) A torque measurement system in accordance with claim 5, wherein the magnetic array is provided in a Halbach-array pattern. ### Claim 8 (depends on 5) A torque measurement system in accordance with claim 5, wherein each magnet of the magnetic array is spaced between each other. ### Claim 9 (depends on 2) A torque measurement system in accordance with claim 2, wherein the pair of magnetic elements is provided offset from the rotating axis. ### Claim 10 (depends on 1) A torque measurement system in accordance with claim 1, further including a wireless transmitting module for communicating the processed data associated with the measured strain with an external wireless receiving module. ### Claim 11 (depends on 1) A torque measurement system in accordance with claim 1, wherein the vehicle is an auto transmission vehicle and the rotatable member is a flexplate. ### Claim 12 (depends on 1) A torque measurement system in accordance with claim 1, wherein the vehicle is a manual transmission vehicle and the rotatable member is a flywheel. ### Claim 13 A torque measurement system for a vehicle having a rotatable member connecting an engine to a torque converter and rotatable about a rotating axis, the torque measurement system comprising: a strain measuring module arranged to measure a strain on the rotatable member; a control module arranged to process the data associated with the measured strain; and an energy generating module is arranged to generate electricity through deformation of the rotatable member or the torque converter, thereby powering the torque measurement system. ### Claim 14 A torque measurement system for a vehicle having a rotatable member connecting an engine to a torque converter and rotatable about a rotating axis, the torque measurement system comprising: a strain measuring module arranged to measure a strain on the rotatable member; a control module arranged to process the data associated with the measured strain; and an energy generating module arranged to generate electricity through the relative movement between the engine and the rotatable member or the torque converter, thereby powering the torque measurement system, wherein the energy generating module is oriented at an inclined angle from a circumferential direction of the rotatable member. ### Claim 15 (depends on 14) A torque measurement system in accordance with claim 14, wherein the energy generating module includes a pair of magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on one of the engine and a transmission. ### Claim 16 (depends on 15) A torque measurement system in accordance with claim 15, wherein the energy generating module includes first and second magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on the engine or the transmission. ### Claim 17 (depends on 16) A torque measurement system in accordance with claim 16, wherein the first magnetic element includes a coil and core assembly. ### Claim 18 (depends on 16) A torque measurement system in accordance with claim 16, wherein the second magnetic element includes a magnetic array formed by a plurality of magnets. ### Claim 19 (depends on 18) A torque measurement system in accordance with claim 18, wherein two adjacent magnets of the plurality of magnets are provided with opposite polarity. ### Claim 20 (depends on 18) A torque measurement system in accordance with claim 18, wherein the magnetic array is provided in a Halbach-array pattern. ### Claim 21 (depends on 18) A torque measurement system in accordance with claim 18, wherein each magnet of the magnetic array is spaced between each other. ### Claim 22 (depends on 15) A torque measurement system in accordance with claim 15, wherein the pair of magnetic elements is provided offset from the rotating axis. ### Claim 23 (depends on 14) A torque measurement system in accordance with claim 14, further including a wireless transmitting module for communicating the processed data associated with the measured strain with an external wireless receiving module. ### Claim 24 (depends on 14) A torque measurement system in accordance with claim 14, wherein the vehicle is an auto transmission vehicle and the rotatable member is a flexplate. ### Claim 25 (depends on 14) A torque measurement system in accordance with claim 14, wherein the vehicle is a manual transmission vehicle and the rotatable member is a flywheel. ### Claim 26 A torque measurement system for a vehicle having a rotatable member connecting an engine to a torque converter and rotatable about a rotating axis, the torque measurement system comprising: a strain measuring module arranged to measure a strain on the rotatable member; a control module arranged to process the data associated with the measured strain; and an energy generating module arranged to generate electricity through the relative movement between the engine and the rotatable member or the torque converter, thereby powering the torque measurement system, wherein the energy generating module includes one or more piezoelectric patches, one or more of which being mounted on the rotatable member. ### Claim 27 (depends on 26) A torque measurement system in accordance with claim 26, wherein the energy generating module includes a pair of magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on one of the engine and a transmission. ### Claim 28 (depends on 27) A torque measurement system in accordance with claim 27, wherein the energy generating module includes first and second magnetic elements, one of which being mounted on the rotatable member and the other of which being mounted on the engine or the transmission. ### Claim 29 (depends on 28) A torque measurement system in accordance with claim 28, wherein the first magnetic element includes a coil and core assembly. ### Claim 30 (depends on 28) A torque measurement system in accordance with claim 28, wherein the second magnetic element includes a magnetic array formed by a plurality of magnets. ### Claim 31 (depends on 30) A torque measurement system in accordance with claim 30, wherein two adjacent magnets of the plurality of magnets are provided with opposite polarity. ### Claim 32 (depends on 30) A torque measurement system in accordance with claim 30, wherein the magnetic array is provided in a Halbach-array pattern. ### Claim 33 (depends on 30) A torque measurement system in accordance with claim 30, wherein each magnet of the magnetic array is spaced between each other. ### Claim 34 (depends on 27) A torque measurement system in accordance with claim 27, wherein the pair of magnetic elements is provided offset from the rotating axis. ### Claim 35 (depends on 26) A torque measurement system in accordance with claim 26, further including a wireless transmitting module for communicating the processed data associated with the measured strain with an external wireless receiving module. ### Claim 36 (depends on 26) A torque measurement system in accordance with claim 26, wherein the vehicle is an auto transmission vehicle and the rotatable member is a flexplate. ### Claim 37 (depends on 26) A torque measurement system in accordance with claim 26, wherein the vehicle is a manual transmission vehicle and the rotatable member is a flywheel.