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457 results about "Fixed ratio" patented technology
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Fixed refers to the delivery of rewards on a consistent schedule. Ratio refers to the number of responses that are required in order to receive reinforcement. For example, a fixed-ratio schedule might be delivery a reward for every fifth response.
Two-mode, compound-split, hybrid electro-mechanical transmission having four fixed ratios
ActiveUS6953409B2Increase powerCost-effectivelyElectric propulsion mountingGas pressure propulsion mountingFixed ratioEngineering
A two-mode, compound-split, electra-mechanical transmission utilizes an input member for receiving power from an engine, and an output member for delivering power from the transmission. First and second motor / generators are operatively connected to an energy storage device through a control for interchanging electrical power among the storage device, the first motor / generator and the second motor / generator. The transmission employs three planetary gear sets. Each planetary gear arrangement utilizes first, second and third gear members. Moreover, one gear member of the first or second planetary gear set is operatively connected to the input member, and one gear member of the third planetary gear set is selectively connected to ground. A lock-up clutch selectively locks two of the planetary gear sets in a 1:1 ratio.
Owner:GM GLOBAL TECH OPERATIONS LLC
Remote centre of motion positioner
An apparatus having a member that revolves about a remote center of motion (RCM) and a base link coupled to a mounting fixture. A first and second link are pivotably coupled to the member at respective distances from the RCM and are translatable relative to the base link along a first direction, at a fixed ratio of displacement. The ratio of respective distances equals a fixed ratio of displacement. The apparatus has a translational motion generator for a first and second element along parallel opposing directions. The translational motion generator is disposed on the first link and enables motion parallel to the first direction. The base link is fixed in position, the first element is fixed to the base link and the second element is fixed to the second link, such that the first and second link may translate relative to the base link with fixed ratio of displacement.
Owner:KATHOLIEKE UNIV LEUVEN
Two-mode, compound-split, hybrid electro-mechanical transmission having four fixed ratios
ActiveUS20050137042A1Low costIncrease powerElectric propulsion mountingToothed gearingsFixed ratioEnergy storage
A two-mode, compound-split, electro-mechanical transmission utilizes an input member for receiving power from an engine, and an output member for delivering power from the transmission. First and second motor / generators are operatively connected to an energy storage device through a control for interchanging electrical power among the storage device, the first motor / generator and the second motor / generator. The transmission employs three planetary gear sets. Each planetary gear arrangement utilizes first, second and third gear members. At least one of the gear members in the first or second planetary gear sets is connected to the first motor / generator. Another gear member in the second and third planetary gear arrangement is connected to the second motor / generator. One of the gear members of the first or second planetary gear sets is continuously connected to one of the gear members in the third planetary gear set. Another gear member of the first or second planetary gear set is operatively connected to the input member, and one gear member of the third planetary gear set is selectively connected to ground. A lock-up clutch selectively locks two of the planetary gear sets in a 1:1 ratio.
Owner:GM GLOBAL TECH OPERATIONS LLC
Shift through neutral control in an electrically variable transmission
InactiveUS20050182543A1Reduce output torqueReduce slippageHybrid vehiclesClutchesFixed ratioControl theory
A shift control for an electrically variable transmission shifts between modes through a neutral mode wherein the output is decoupled from the transmission. Normally, shifts between modes are accomplished synchronously through a duration of fixed-ratio operation. Extreme driving conditions may invoke shifts through neutral mode. Ratio violations characterized by one mode being active in a preferred input / output ratio range for another mode are handled by a shift through neutral. Similarly, rapid acceleration and deceleration conditions likely to result in undesirable engine speeds if synchronous shifting is employed are handled by a shift through neutral.
Owner:ALLISON TRANSMISSION INC
Electrically variable transmission with selective fixed ratio operation
InactiveUS20060046886A1Easy to operateBest possible energy efficiencyElectric propulsion mountingToothed gearingsFixed ratioEngineering
Owner:GM GLOBAL TECH OPERATIONS LLC
Electronic winch monitoring system
ActiveUS20050072965A1Reduce pressureReduce hydraulic pressureWinding mechanismsFixed ratioTime profile
An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit. The system comprises an input shaft speed sensor, an output shaft speed sensor, and an electronic control unit having a monitoring section and a brake control section. The monitoring section receives the speed signals, processes them to produce a calculated ratio of actual input to output shaft speeds, and produces a fault indication signal when the value of the difference between the calculated speed ratio and the fixed ratio exceeds a predetermined value. The brake control section, upon receiving the fault signal, reduces the hydraulic pressure in the brake circuit using a nonlinear pressure-time profile to engage the auxiliary brake and stop the winch drum.
Owner:PACCAR INC
Light emitting device
InactiveUS20020105005A1Reduce voltageLong lastingElectroluminescent light sourcesSolid-state devicesFixed ratioConcentration gradient
A light emitting device and electronic equipment having a long life at a low electric power consumption are provided. A hole transporting region composed of a hole transporting material, an electron transporting region composed of an electron transporting material, and a mixture region in which both the hole transporting material and the electron transporting material are mixed at a fixed ratio are formed within an organic compound film. Regions having a concentration gradient are formed between the mixture region and carrier transporting regions until the fixed ratio is achieved. In addition, by doping a light emitting material into the mixture region, functions of hole transportation, electron transportation, and light emission can be respectively expressed while all of the interfaces existing between layers of a conventional lamination structure are removed. Organic light emitting elements having low electric power consumption and a long life can thus be provided, and light emitting devices and electronic equipment can be manufactured using the organic light emitting elements.
Owner:SEMICON ENERGY LAB CO LTD
Electrically variable transmission having two planetary gear sets with one fixed interconnection
ActiveUS7192373B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageTransmission elementsPlural diverse prime-mover propulsion mountingGear wheelElectric machine
Owner:GM GLOBAL TECH OPERATIONS LLC
Electrically variable transmission with selective fixed ratio operation
InactiveUS20060019785A1Easy to operateBest possible energy efficiencyHybrid vehiclesElectric propulsion mountingFixed ratioGear wheel
Owner:GM GLOBAL TECH OPERATIONS LLC
Super-turbocharger having a high speed traction drive and a continuously variable transmission
A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission.
Owner:VANDYNE SUPERTURBO
Electrically variable transmission having three planetary gear sets, clutched input, two fixed interconnections and a stationary member
InactiveUS7367911B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageHybrid vehiclesElectric propulsion mountingGear wheelDog clutch
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, up to five selectable torque-transfer devices and possibly a dog clutch. The selectable torque transmitting devices are engaged to yield an EVT with a continuously variable range of speeds (including reverse) and up to four mechanically fixed forward speed ratios. The torque transmitting devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Multi-mode electrically variable transmissions having two planetary gear sets with one fixed interconnection
ActiveUS20070105678A1Improve acceleration performanceBest possible energy efficiencyTransmission elementsPlural diverse prime-mover propulsion mountingElectric machineFixed ratio
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, four selectable torque-transfer devices, and a dog clutch. The selectable torque transfer devices are engaged singly or in combinations to yield an EVT with a continuously variable range of speeds (including reverse) and up to four mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Remote centre of motion positioner
InactiveUS20120132018A1Increase stiffnessSolve the real problemDiagnosticsSurgical manipulatorsFixed ratioEngineering
Apparatus comprising a member (6) arranged to revolve about a remote centre of motion (O) and a base link (3) coupled to a mounting fixture (1). A first link (4) and a second link (5) are pivotably coupled to the member at respective distances (L1, L2) from the remote centre of motion (O) and are translatable relative to the base link (3) along a first direction and at a fixed ratio of displacement. The ratio of said respective distances equals said fixed ratio of displacement, enabling the member (6) to revolve about the remote centre of motion. The apparatus is characterised in that it comprises means (7) for generating translational motion of a first element (37) and of a second element (57) along parallel but opposite directions. The means for generating translational motion is provided on the first link (4) and is arranged to provide motion parallel to the first direction. The base link is fixed in a position, the first element (37) is fixed to the base link (3) and the second element (57) is fixed to the second link (5), such that generation of said translational motion of the first element (37) and of the second element (57) enables the first link (4) and the second link (5) to translate relative to the base link (3) with said fixed ratio of displacement.
Owner:KATHOLIEKE UNIV LEUVEN
Super-turbocharger having a high speed traction drive and a continuously variable transmission
ActiveUS20100199666A1Easy to recycleInternal combustion piston enginesNon-fuel substance addition to fuelFixed ratioTurbocharger
A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed.
Owner:VANDYNE SUPERTURBO
Object Detection System and Object Detection Method
A method for detecting an object in an image includes extracting a first feature vector from a first region of an image using a first subnetwork, determining a second region of the image by resizing the first region into a fixed ratio using a second subnetwork, wherein a size of the first region is smaller than a size of the second region, extracting a second feature vector from the second region of the image using the second subnetwork, classifying a class of the object using a third subnetwork on a basis of the first feature vector and the second feature vector, and determining the class of object in the first region according to a result of the classification, wherein the first subnetwork, the second subnetwork, and the third subnetwork form a neural network, wherein steps of the method are performed by a processor.
Owner:MITSUBISHI ELECTRIC RES LAB INC
Electrically variable transmission having three planetary gear sets, two fixed interconnections and a stationary member
InactiveUS20070219036A1Improve acceleration performanceBest possible energy efficiencyHybrid vehiclesElectric propulsion mountingGear wheelDog clutch
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, up to five selectable torque-transfer devices and possibly a dog clutch. The selectable torque transmitting devices are engaged to yield an EVT with a continuously variable range of speeds (including reverse) and up to four mechanically fixed forward speed ratios. The torque transmitting devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Electronic winch monitoring system
An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit. The system comprises an input shaft speed sensor, an output shaft speed sensor, and an electronic control unit having a monitoring section and a brake control section. The monitoring section receives the speed signals, processes them to produce a calculated ratio of actual input to output shaft speeds, and produces a fault indication signal when the value of the difference between the calculated speed ratio and the fixed ratio exceeds a predetermined value. The brake control section, upon receiving the fault signal, reduces the hydraulic pressure in the brake circuit using a nonlinear pressure-time profile to engage the auxiliary brake and stop the winch drum.
Owner:PACCAR INC
Super-turbocharger having a high speed traction drive and a continuously variable transmission
ActiveUS8561403B2Easy to recycleInternal combustion piston enginesNon-fuel substance addition to fuelFixed ratioTurbocharger
A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed.
Owner:VANDYNE SUPERTURBO
Two mode electrically variable transmission with equal forward and reverse input-split modal and fixed ratio performance
InactiveUS7338401B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageHybrid vehiclesElectric propulsion mountingFixed ratioControl theory
Owner:GM GLOBAL TECH OPERATIONS LLC
Electrically variable transmission having three planetary gear sets, four fixed interconnections and clutched input
ActiveUS20070129196A1Improve acceleration performanceBest possible energy efficiencyHybrid vehiclesElectric propulsion mountingGear wheelEngineering
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, four or five selectable torque-transfer devices (two clutches and two or three brakes), and possibly a dog clutch. The selectable torque transfer devices are engaged to yield an EVT with a continuously variable range of speeds (including reverse) and mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Electrically variable transmission with selective fixed ratio operation
InactiveUS7220203B2Easy to operateBest possible energy efficiency and emissionElectric propulsion mountingGas pressure propulsion mountingFixed ratioElectric motor
Owner:GM GLOBAL TECH OPERATIONS LLC
Electrically variable transmission having three planetary gear sets, a stationary member and three fixed interconnections
ActiveUS20070197335A1Improve acceleration performanceBest possible energy efficiencyHybrid vehiclesElectric propulsion mountingGear wheelEngineering
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, up to six selectable torque-transfer devices, and possibly a dog clutch. The selectable torque transfer devices are engaged to yield an EVT with a continuously variable range of speeds (including reverse) and mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Two mode electrically variable transmission with equal forward and reverse input-split modal and fixed ratio performance
InactiveUS20070021257A1Improve acceleration performanceEnhanced reverse power capabilityHybrid vehiclesElectric propulsion mountingElectricityFixed ratio
Owner:GM GLOBAL TECH OPERATIONS LLC
Electrically variable transmission having three interconnected planetary gear sets, two clutches and two brakes
ActiveUS7179187B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageHybrid vehiclesElectric propulsion mountingGear wheelEngineering
The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and four selectable torque-transfer devices (two clutches and two brakes). The selectable torque transfer devices are engaged singly or in combinations of two to yield an EVT with a continuously variable range of speeds (including reverse) and four mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor / generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.
Owner:GM GLOBAL TECH OPERATIONS LLC
Hybrid Electric Vehicle Braking Downshift Control
ActiveUS20090150035A1Stable torque deliveryIncreased torque outputDigital data processing detailsElectric propulsion mountingBrake torqueDrive wheel
A hybrid propulsion system for a vehicle. The hybrid propulsion system including a multiple step fixed-gear transmission device for transmitting torque to a first at least one drive wheel, a first electric energy conversion device coupled to an input of the multiple step fixed-gear transmission device, and a control system, during a deceleration condition, the control system increasing negative torque output of the first electric energy conversion device to meet a desired wheel braking torque in response to the multiple step fixed-ratio transmission transitioning from a first gear ratio to a second gear that is higher than the first gear ratio.
Owner:FORD GLOBAL TECH LLC
Proportioning pump, control systems and applicator apparatus
ActiveUS9316216B1Positive displacement pump componentsTransportation and packagingControl systemFixed ratio
An absolute proportioning pumping system includes an electric motor assembly powering a first pump at a first flow rate and powering a second pump at a second flow rate. A proportioned fluid output includes a first fluid pumped by the first pump and a second fluid pumped by the second pump. The pumping system provides a desired ratio of the first fluid to the second fluid at the proportioned fluid output, relatively independently of pressure and flow rate at the output. In accord with further embodiments, a pump and motor assembly is mounted to and generally surrounded by a liquid tank. The pump and motor assembly may include a pair of fixed ratio outputs driven from a common motor, or may include a single variable output pump either slaved to a master pump or controlled through a timed bypass valve to control output flow rate.
Owner:PUMPTEC
Electrically variable transmission having three interconnected planetary gear sets
ActiveUS7179186B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageHybrid vehiclesElectric propulsion mountingOperation modeForward speed
Owner:GM GLOBAL TECH OPERATIONS LLC
Numerically controlled continuous steam explosion machine
InactiveCN102600763AAchieving suddennessGuarantee the same effect of steam explosionPressurized chemical processFixed ratioEngineering
The invention relates to a production device for steam explosion pretreatment of biomass, in particular to a pretreatment device for the industry of biomass utilization, and provides a numerically controlled continuous steam explosion machine, which can complete supersonic steam explosion in milliseconds (0.00875s) based on the principle of a sliding cover. Since the cross-sectional area of the steam explosion machine for gas discharging, i.e. the cross-sectional area of the sliding cover, is equal to the cross-sectional area of a high-pressure cylinder, the cross-sectional area of the steam explosion machine for gas discharging and the steam explosion treatment volume form a fixed ratio, the problem that the gas discharging time is prolonged along with increase in the treatment volume in the traditional hot blowing process can be solved, and the power and density of steam explosion can be increased by three orders of magnitude. Moreover, the 'rawness and maturity' of materials which are subjected to batch treatment can be kept identical, and a foundation is laid for the consistency of industrial biochemical treatment. Meanwhile, the machine has the function of feeding and discharging materials automatically and the continuous steam explosion production can be realized.
Owner:于政道
Multi-mode electrically variable transmissions having two planetary gear sets with two fixed interconnections and clutched input
ActiveUS7288041B2Best possible energy efficiency and emissionOptimal performance and capacity and package size and ratio coverageElectric propulsion mountingToothed gearingsGear wheelForward speed
Owner:GM GLOBAL TECH OPERATIONS LLC
Method and apparatus for controlling a constant current output in a switching mode power supply
ActiveUS8213203B2Reduces and eliminates errorAc-dc conversionDc-dc conversionControl signalEngineering
A controller for providing a constant output current control signal in a switched mode power supply (SMPS) includes a conduction time compensation circuit that is configured to produce a compensated conduction time interval signal that includes compensation for a ringing waveform of a feedback signal. The compensated signal reflects more accurately the actual conductive time of a rectifying diode in a secondary winding of the switched mode power supply. In one embodiment, the compensated conduction time interval signal is used to generate a fixed ratio between the conduction time and the non-conduction time of the rectifying diode. In another embodiment, the controller also provides a constant voltage control signal.
Owner:BCD SHANGHAI MICRO ELECTRONICS CO LTD
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