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37results about How to "Improved torque control" patented technology
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Quick change infinitely adjustable barrel nut assembly
InactiveUS6959509B2Quickly and easily changeEasy to assembleCartridge extractorsWeapon cleaningBarrel ShapedEngineering
The present invention is a quick change and torque controlled barrel nut assembly for use on a variety of firearms. The invention is made up of a generally cylindrically shaped barrel nut configured to adaptably connect a barrel to a firearm, a gas tube ring that is configured to fit over the barrel nut and a locknut that holds the gas tube ring in place. This invention allows the gun barrel to be rapidly connected by connecting the barrel to the receiver portion of a firearm, placing the freely rotating stabilizing gas ring in a desired position and tightening the locknut to hold the stabilizing gas ring in place.
Owner:VAIS GEORGE
Torque-based powertrain control for vehicles
ActiveUS7275518B1Prevent over-chargingImproved torque controlElectrical controlInternal combustion piston enginesEngineeringPowertrain control
A system and method for controlling a vehicle powertrain having an internal combustion engine include determining a difference between a desired engine torque and a current engine torque, adjusting the difference based on a stored torque offset corresponding to a current engine speed, and controlling the engine to produce a torque corresponding to the adjusted torque difference. The stored torque offset is adjusted when the engine is operating in a predetermined engine speed range based on a steady-state difference between the desired and current engine torque to reduce the steady-state difference to zero. The adjusted torque difference may be limited by a maximum-engine-torque-available parameter and a minimum-engine-torque-available parameter, which is based on an operating temperature, such as the engine coolant temperature. The system and method may also include controlling spark to rapidly reduce current engine torque to the adjusted torque difference value.
Owner:FORD GLOBAL TECH LLC
System and method to control transitions in the number of cylinders in a hybrid vehicle
ActiveUS7225782B2Improve fuel economyImproved torque controlHybrid vehiclesElectrical controlControl theoryHybrid vehicle
A vehicle system is disclosed. The system include a engine capable of disabling and enabling at least one cylinder; a motor coupled to said engine capable of absorbing torque and providing torque; and a controller for disabling and enabling said at least one cylinder, and during at least one of disabling and enabling, varying torque of said motor to compensate for transient changes in engine output torque caused by said one of disabling and enabling.
Owner:FORD GLOBAL TECH LLC
System and method to control transitions in the number of cylinders in a hybrid vehicle
ActiveUS20060196463A1Improve fuel economyImproved torque controlHybrid vehiclesElectrical controlEngineeringControl theory
A vehicle system is disclosed. The system include a engine capable of disabling and enabling at least one cylinder; a motor coupled to said engine capable of absorbing torque and providing torque; and a controller for disabling and enabling said at least one cylinder, and during at least one of disabling and enabling, varying torque of said motor to compensate for transient changes in engine output torque caused by said one of disabling and enabling.
Owner:FORD GLOBAL TECH LLC
Microcatheter
PendingCN108514677AImproved torque controlImprove traversal abilityGuide needlesMulti-lumen catheterCoronary arteriesMain branch
The invention discloses a microcatheter of a tubular structure. The microcatheter comprises a catheter body and a tip end at the far end of the catheter body. The catheter body comprises an inner layer with a hollow tube cavity, a tubular middle layer wrapping the outer side of the inner layer, and a tubular outer layer wrapping the outer side of the middle layer, wherein the middle layer comprises a spring layer and a woven fabric, the woven fabric longitudinally extends on one part of the spring layer, and the portion, not wrapped by the woven fabric, of the spring layer is bent by a certaindegree along the longitudinal axis of the catheter body. The catheter body of the microcatheter is of a multi-layer structure, the woven fabric only wraps the near end of the spring layer, and the portion, not wrapped by the woven fabric, of the spring layer can be bent by a corresponding degree so as to meet the angle between a coronary artery branch and a main branch, so it is ensured that themicrocatheter reaches the lesion of the coronary artery branch.
Owner:ORBUSNEICH MEDICAL SHENZHEN CO LTD
Variable diameter cylinder
InactiveCN1383980AImproved torque controlEasy to change diameterShaft and bearingsFunction indicatorsEngineeringMachine
The cylindrical body (10) has a number of first conical elements (12a-g) that interact with and are axially movable with respect to a number of second conical elements (22a-g). The diameter of the body is varied depending on the axial movement between the first and second conical elements, which define the outer surface of the cylindrical body. Independent claims are also included for the following: a method of varying the effective diameter of a cylindrical body and a printing machine, especially a roller rotation printer.
Owner:HEIDELBERGER DRUCKMASCHINEN AG
Electric power steering device
InactiveUS20110166750A1Good torque controlSimple arithmetic processingDigital data processing detailsField acceleration method controlTask controlThree-phase
Owner:HONDA MOTOR CO LTD
Method and system for hybrid vehicle
InactiveCN103381815AReduce estimation errorImproved Torque DisturbanceHybrid vehiclesInternal combustion piston enginesElectric machineHybrid electrical vehicle
The invention provides a system and a method for obtaining torque estimation faults and updating a torque estimation model. In one embodiment, the torque estimation faults are obtained during flame-out of the engine after a disengaging clutch connected between an engine and an electric machine is released. In the following engine operation period, the updated torque estimation module is used for controlling the torque and thus improving the driving feeling and vehicle performance.
Owner:FORD GLOBAL TECH LLC
Hydraulic Drive
ActiveUS20090308067A1Simple and flexibleImproved torque controlFluid couplingsServomotor componentsHydraulic motorControl theory
The present invention relates to a hydraulic drive which comprises a hydraulic motor having a first hydraulic connector and a second hydraulic connector, wherein the pressure applied at the first hydraulic connector of the hydraulic motor and the pressure applied at the second hydraulic connector of the hydraulic motor are each separately adjustable.
Owner:LEIBHERR HYDRAULIKBAGGER GMBH
Methods and systems for vehicle driveline torque estimation
ActiveUS9399457B2Good estimateImproved estimate of engine torqueHybrid vehiclesVehicle sub-unit featuresFlywheelControl theory
Systems and methods for improving hybrid vehicle torque control are presented. The system and methods included may estimate driveline torque via springs of a dual mass flywheel. The estimated driveline torque may provide feedback for adjusting operation of a driveline disconnect clutch and / or engine torque.
Owner:FORD GLOBAL TECH LLC
Control Method Of Dual Clutch Transmission For Hybrid Electric Vehicle And Control System For The Same
ActiveCN106560362APrevents brake linear dropQuick shift responseHybrid vehiclesSpeed controllerRegenerative brakeControl system
A control method of a dual clutch transmission for a hybrid electric vehicle includes: determining, by a transmission controller, whether a vehicle has entered a power-off down-shift state; determining, by the transmission controller, whether a transmission including a first input shaft, a second input shaft, and an output shaft has entered a torque phase, when the first determining step determines that the vehicle has entered the power-off down-shift state; calculating a compensatory torque for compensating for a change in a regenerative braking force according to a change of a gear ratio in accordance with a completion percentage of the torque phase, when it is determined that a transmission has entered the torque phase; and compensating for regenerative torque of a motor by applying the compensatory torque.
Owner:HYUNDAI MOTOR CO LTD +1
Stent delivery system and method of use
InactiveUS20090287146A1Smooth movementImproved torque controlGuide needlesStentsBalloon dilatation catheterDelivery system
A balloon dilation catheter comprising: a tubular member having a proximal end and a distal end and an inflatable balloon disposed at the distal end of the tubular member. The tubular member comprises a first lumen disposed in communication with an interior of the inflatable balloon and a second lumen for receiving a guidewire substantially along the entire length of the tubular member. The second lumen has a first opening at the proximal end of the tubular member and a second opening at the distal end of the tubular member. A first slit is disposed longitudinally from the first opening along substantially the entire length of the tubular member to permit separation of the guidewire with respect to the second lumen. The subject balloon dilation catheter provides improved rapid exchange advantages of either the catheter or the guidewire used in a catheterization technique.
Owner:RICCI DONALD R
Centrifugal clutch assembly with dedicated maneuvering mode
A vehicle power train system includes an engine, a transmission, and a centrifugal clutch assembly that selectively couples an engine output shaft to a transmission input shaft in response to an operator input. An operator selects a desired vehicle-operating mode by actuating a shift lever or shift switch from a gear selection device. The gear selection device indicates many different operating modes and includes a low-speed maneuvering mode that is selected for low-speed operations such as coupling a truck to a trailer, or positioning a truck and / or trailer in relation to a loading dock area. Once the low-speed maneuvering mode is selected, a control unit controls at least one of engine speed and engine torque to indirectly effect clutch slippage, which results in improved vehicle speed control at low-speed operations.
Owner:MERITOR TRANSMISSION CORP
Methods and systems for vehicle driveline torque estimation
ActiveUS20150051045A1Good estimateImproved estimate of engine torqueHybrid vehiclesVehicle sub-unit featuresFlywheelControl theory
Systems and methods for improving hybrid vehicle torque control are presented. The system and methods included may estimate driveline torque via springs of a dual mass flywheel. The estimated driveline torque may provide feedback for adjusting operation of a driveline disconnect clutch and / or engine torque.
Owner:FORD GLOBAL TECH LLC
Multiple electric motors driving a single compressor string
Systems and methods of driving a compressor are provided. The compressor can be driven by multiple electric motors, which can be controlled by an adjustable speed drive (ASD) to increase efficiency. A torque controller may also be included.
Owner:KELLOGG BROWN & ROOT LLC
A method and a system for a hybrid electric vehicle
InactiveCN103381823AReduce estimation errorImproved Torque DisturbanceHybrid vehiclesPlural diverse prime-mover propulsion mountingElectric machineEngineering
The method involves releasing a disengaging clutch connected between an engine (10) and an electric motor in a vehicle drive train, in the motor switching off conditions, and estimating a torque after the release of disengaging clutch, based on deviation of one or more engine torque, engine speed and engine braking of the commanded values for release of the clutch. A crankshaft integrated starter / generator (CISG) is arranged to connect the motor to a transmission and the wheels of vehicle drive train mechanically.
Owner:FORD GLOBAL TECH LLC
Control device for internal combustion engine with supercharger
InactiveUS20140076278A1Faster throttlingImprove accuracyElectrical controlInternal combustion piston enginesExternal combustion engineEngineering
The present invention is a proposal relating to cooperative manipulation of an actuator which actively changes a supercharging pressure and a throttle in the case of application of torque demand control to an internal combustion engine with a supercharger. A control device provided by the present invention separately determines a target air quantity for manipulation of the throttle, and a target air quantity for manipulation of the actuator. In more detail, driver required torque which is included in required torque is converted into an air quantity in accordance with a predetermined conversion rule, and the air quantity which is obtained by the conversion is determined by calculation as a reference target air quantity. The reference target air quantity is used as a target air quantity for throttle manipulation, and is also used as a target air quantity for actuator manipulation at a normal time. When a change occurs to the required torque, and the change cannot be realized under the reference target air quantity, a correction target air quantity capable of realizing the change is determined by calculation, and is used as the target air quantity for throttle manipulation.
Owner:TOYOTA JIDOSHA KK
Electric power steering device
InactiveUS8606462B2Improved torque controlSimple arithmetic processingDigital data processing detailsField acceleration method controlElectric power steeringMaximum torque
There is provided a electric power steering device which can perform torque control through a simple arithmetic process using a synchronous reluctance motor having a nonlinear current / torque characteristic. A target torque is transmitted from an EPS control unit 41 to a motor control unit 51. The motor control unit 51 calculates a target-current effective value I and a target-current phase θ from the input target torque. Based on the calculated target-current effective value I and target-current phase θ, calculation is changed whether to perform calculation so that the maximum torque (the maximum torque obtainable at the minimum current effective value) can be obtained, or to perform calculation so that the maximum output (the maximum output obtainable at the minimum current effective value) can be obtained in accordance with a duty ratio of an output by a PWM converting unit 57 comprising a three-phase inverter. Next, a three-phase biaxial converting unit 53 calculates a target q-axis current Iq and a target d-axis current Id from the target-current effective value I and the target-current phase θ, and the PWM converting unit 57 performs duty control in order to control the torque of a motor 58.
Owner:HONDA MOTOR CO LTD
Gear screw adjuster
ActiveUS8684574B2Easy to installCost-effectiveVehicle headlampsLighting support devicesEngineeringMechanical engineering
A headlamp assembly includes a simplified adjusting mechanism for adjusting the aim of a headlamp. The mechanism includes a gear screw that is snap fit into the headlamp housing, a grommet that positioned around the gear screw and snap-fit into the headlamp reflector, and an O-ring to ensure a good seal.
Owner:BURTON TECH
Control device for internal combustion engine with supercharger
InactiveUS9115643B2Faster throttlingImprove accuracyElectrical controlInternal combustion piston enginesExternal combustion engineActuator
The present invention is a proposal relating to cooperative manipulation of an actuator which actively changes a supercharging pressure and a throttle in the case of application of torque demand control to an internal combustion engine with a supercharger. A control device provided by the present invention separately determines a target air quantity for manipulation of the throttle, and a target air quantity for manipulation of the actuator. In more detail, driver required torque which is included in required torque is converted into an air quantity in accordance with a predetermined conversion rule, and the air quantity which is obtained by the conversion is determined by calculation as a reference target air quantity. The reference target air quantity is used as a target air quantity for throttle manipulation, and is also used as a target air quantity for actuator manipulation at a normal time. When a change occurs to the required torque, and the change cannot be realized under the reference target air quantity, a correction target air quantity capable of realizing the change is determined by calculation, and is used as the target air quantity for throttle manipulation.
Owner:TOYOTA JIDOSHA KK
Hydraulic drive
ActiveUS9447874B2Simple and flexible and cost-effectiveImproved torque controlServomotorsGearing controlHydraulic motorControl theory
The present invention relates to a hydraulic drive which comprises a hydraulic motor having a first hydraulic connector and a second hydraulic connector, wherein the pressure applied at the first hydraulic connector of the hydraulic motor and the pressure applied at the second hydraulic connector of the hydraulic motor are each separately adjustable.
Owner:LEIBHERR HYDRAULIKBAGGER GMBH
Centrifugal clutch assembly with dedicated maneuvering mode
InactiveUS20060183595A1Improved vehicle speed controlImproved torque controlVehicle fittingsEngine controllersLow speedDrivetrain
A vehicle power train system includes an engine, a transmission, and a centrifugal clutch assembly that selectively couples an engine output shaft to a transmission input shaft in response to an operator input. An operator selects a desired vehicle-operating mode by actuating a shift lever or shift switch from a gear selection device. The gear selection device indicates many different operating modes and includes a low-speed maneuvering mode that is selected for low-speed operations such as coupling a truck to a trailer, or positioning a truck and / or trailer in relation to a loading dock area. Once the low-speed maneuvering mode is selected, a control unit controls at least one of engine speed and engine torque to indirectly effect clutch slippage, which results in improved vehicle speed control at low-speed operations.
Owner:MERITOR TRANSMISSION CORP
Methods and systems for selectively adapting engine air flow
ActiveUS20160332617A1Reduce in quantityIncrease airflowHybrid vehiclesElectrical controlActuatorHybrid powertrain
Systems and methods for adjusting an engine air flow transfer function and engine actuators based on the engine air flow transfer function are presented. The system and method may be applied to hybrid powertrains having a capability to estimate engine torque based on operating characteristics of a motor during vehicle operation.
Owner:FORD GLOBAL TECH LLC
Damping motor and control approach for mitigating torsional backlash, damping critical geartrain speeds, and providing improved torque control in mechanical gears
ActiveUS20090049941A1Less powerReduce decreaseHybrid vehiclesRotating vibration suppressionControl systemGear wheel
A torque damper motor connected to the output side of a mechanical gear system. The damper motor, along with its associated control system, mitigates backlash problems, reduced torsional resonance, and provides improved output torque control. In the preferred embodiment, the damper motor is powered by a power electronics—based variable speed drive. The damper motor can be significantly less powerful than the overall rating of the gear system (typically 5-10% of the overall rating) while still providing the enhanced performance.
Owner:FLORIDA STATE UNIV RES FOUND INC
Apparatus for bonding semiconductor chip
InactiveCN102769997ALower estimated costsReduce assembly errorsPrinted circuit assemblingSolid-state devicesSemiconductor chipEngineering
An apparatus for bonding a semiconductor chip. A chip adsorption unit adsorbs the semiconductor chip at an initial position and releases the adsorption of the semiconductor chip at a mounting position at which the semiconductor chip is mounted on a printed circuit board. A board supporting plate is arranged to be separated from the initial position of the chip adsorption unit. The board supporting plate supports the printed circuit board. A chip transfer unit transfers the chip adsorption unit. A board driving unit transfers or rotates the board supporting plate.
Owner:IPS SYST
Control method and control system for dual-clutch transmission of hybrid electric vehicle
ActiveCN106560362BPrevents brake linear dropQuick shift responseHybrid vehiclesSpeed controllerRegenerative brakeControl system
The present invention provides a control method for a dual-clutch transmission of a hybrid electric vehicle, comprising: determining whether the vehicle enters a powerless downshift state through a transmission controller; when the first determining step determines that the vehicle has entered a powerless downshift state , it is determined by the transmission controller whether the transmission including the first input shaft, the second input shaft and the output shaft enters the torque phase; when it is determined that the transmission has entered the torque phase, the calculation is used to compensate the gear ratio based on the completion percentage of the torque phase varying compensation torque for varying regenerative braking force; and, compensating for regenerative torque of the electric motor by applying compensation torque.
Owner:HYUNDAI MOTOR CO LTD +1
Methods and systems for vehicle driveline torque estimation
InactiveCN104417521AEasy to operateImproved shiftingHybrid vehiclesElectrical controlFlywheelControl theory
Owner:FORD GLOBAL TECH LLC
Method and system for hybrid electric vehicles
InactiveCN103381823BReduce estimation errorImproved Torque DisturbanceHybrid vehiclesPlural diverse prime-mover propulsion mountingHybrid vehicleCrankshaft
The method involves releasing a disengaging clutch connected between an engine (10) and an electric motor in a vehicle drive train, in the motor switching off conditions, and estimating a torque after the release of disengaging clutch, based on deviation of one or more engine torque, engine speed and engine braking of the commanded values for release of the clutch. A crankshaft integrated starter / generator (CISG) is arranged to connect the motor to a transmission and the wheels of vehicle drive train mechanically.
Owner:FORD GLOBAL TECH LLC
Construction method of electric vehicle permanent magnet hub motor energy composite controller
ActiveCN112701973AImprove overheatingHigh control precisionElectronic commutation motor controlSpeed controllerTemperature controlElectric machine
The invention discloses a construction method of an electric vehicle permanent magnet wheel hub motor energy composite controller.A composite controlled object is formed by a permanent magnet wheel hub motor, a temperature measurement module and a rotating speed and electric angle calculation module, and a PARK conversion module, a CLARK conversion module and a PWM inverter module are sequentially connected in series to form a composite inverter control module; an intelligent heat control module is composed of a temperature setting module, a heat calculation module, and a heat regulation and control module, a heat PI regulation module and a current conversion module which are sequentially connected in series; a flux linkage observation module, a coordinate transformation module, a torque error calculation module, a reference torque calculation module, a torque estimation module, a target torque giving module, a PI adjustment module, a phase angle updating module and a current transformation module jointly form a composite temperature control torque module, and the temperature of the hub motor is measured to feed back and adjust the running state of the motor; and the composite temperature control torque module and the heat control module are jointly regulated and controlled to realize temperature and torque control.
Owner:JIANGSU UNIV
Fin stabilizer
ActiveUS10625831B2Improved torque controlReduced or zero backlashAuxillariesVessel movement reduction by foilsRotational axisControl signal
Owner:NAIAD MARITIME GRP
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