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8185283 |
Output torque calculating apparatus and calculating method
First target torque of an engine is set based on a driver's operation, a vehicle behavior, and a request for shifting gears of an automatic transmission. The engine is controlled such that the...
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8182391 |
Electric torque converter for a powertrain and method of operating a vehicle
An electric torque converter has a torque converter input member connected to the first node of a differential gear set representable by a lever diagram having first, second, and third nodes. A...
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8185282 |
Method for the operation of a drivetrain
A method for the operation of a drivetrain comprising an automatic transmission, a motor and at least five shift elements in which two shift elements are engaged and three shift elements are...
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8180511 |
Hybrid vehicle control apparatus and method
A hybrid vehicle has an internal combustion engine 2 and a flywheel 9. Storage and release of energy by the flywheel 9 is enabled by a continuously variable transmission 10 and clutch 11 under the...
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8180536 |
Automatic transmission control apparatus and method
During control of a shift of a first friction engagement element from an engaged state into a disengaged state and a shift of a second friction engagement element from a disengaged state into an...
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8180549 |
Method for controlling a clutch
A method of controlling a clutch in a motor vehicle and a motor vehicle adapted to perform this method are suggested, in particular resulting in a good starting phase action for supercharged diesel...
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8180537 |
Engine control apparatus
An engine control apparatus controls an engine rotational speed to a target rotational speed by using a detected input side transmission rotational speed of a manual transmission as the target...
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8167774 |
Process for controlling a twin clutch
A process for controlling a twin clutch transmission with two partial drive trains with respectively a friction clutch interposed between an internal combustion engine and the partial drive train...
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8165772 |
Transmission slip control
A method of managing slip in a transmission that is driven by a prime mover includes determining whether a slip condition of the transmission is present based on a slip value and reducing a torque...
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8160792 |
Clutch failure detection system, straddle-type vehicle, and method for detecting failure
A failure detection system for accurately detecting a failure of a clutch. A clutch actuation mechanism changes the relative positions of drive-side and driven-side members of the clutch. A...
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8155850 |
System for controlling peak torque in manual transmissions
A system for controlling a flow of hydraulic fluid between a hydraulic actuator and a torque transmitting device includes a position sensor in communication with the hydraulic actuator and operable...
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8155849 |
Hydraulic actuating device for an automotive friction clutch
A hydraulic actuating device (10) for an automotive friction clutch (12), has a master cylinder (14) whose master piston (16) can be impinged upon with a master force (FG) via an actuating...
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8150589 |
System and method for managing accumulator effects during engagement of a lockup clutch in a torque converter
A dynamic model that is configured to produce a lockup clutch command as a function of a plurality of torque converter operating parameters is continually solved and the lockup clutch command is...
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8147381 |
Clutch control system for saddle riding type vehicle
A grip force of a driving wheel is maintained by identifying an actual condition of a motorcycle and controlling a clutch in a timely manner. A clutch control system includes a clutch, an actuator...
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8150587 |
Shift control device of transmission
An ECU is configured to disengage a clutch by driving a motor upon detection of starting of a shift operation, and to engage the clutch upon detection of completion of the shift change. The shift...
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8145400 |
Method for controlling a hydraulic actuator comprising a rapid drain valve and a control system and a friction coupling comprising an actuator of this type
A method of controlling a hydraulic actuator of a friction coupling that includes a pump, which is driven by an electric motor, a pressure line, which contains a non-return valve and which runs...
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8118626 |
Outboard motor control apparatus
In an apparatus for controlling operation of an outboard motor mounted on a boat and having a torque converter equipped with a lockup clutch, it is configured to calculate a speed ratio of the...
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8118697 |
Mechanical function control of continuously variable transmission hydraulic system
A simplified continuously variable transmission system control provides a variable clamping force and a differential cylinder pressure manipulation to change sheave ratios. The system control uses...
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8116956 |
Fault tolerant clutch actuator
A method of engaging a clutch within a drive train may include detecting a fault in a clutch engagement data link, selecting an alternative clutch control logic, detecting a value indicative of a...
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8116957 |
System and method for controlling clutch engagement in hybrid vehicle
The present invention provides a system and method for controlling clutch engagement in a hybrid vehicle, in which an appropriate clutch engagement mode is selected based on vehicle state, and the...
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8109855 |
Method for controlling the coupling and the decoupling of the first motor and second motor of a parallel hybrid motive power group
The invention relates to a method for controlling the coupling and the decoupling of the first motor and of the second motor of a parallel hybrid motive power group comprising a first motor (11)...
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8108114 |
Clutch controller, method of controlling clutch, and straddle-type vehicle
A clutch controller that improves riding comfort when a clutch is engaged. A target torque obtaining section obtains torque that is supposed to be transmitted from a drive-side member of the clutch...
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8105205 |
Method and device for adjusting the friction coefficient of a friction clutch situated in a hybrid power train
A method for adjusting the friction coefficient of a friction clutch situated in a hybrid power train between an electric machine and a combustion engine, actuated by a clutch actuator, the...
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8108115 |
Vehicle control device
A vehicle control device including an input member drive-connected to a power source; a mechanical pump; an electric pump assisting the mechanical pump; a drive mechanism transmitting the...
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8108111 |
Hydrostatic regenerative drive system
A variable transmission comprises a first fluid working machine (1) for connection to a prime mover (2), a second fluid working machine (5) for connection to a mechanical load (6) and a fluid...
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8092343 |
Method for setting the filling pressure for a clutch
A method for determining the filling pressure for a clutch and a hydraulic clutch adapted to conduct said method are suggested where clutch linings are brought into engagement against the force of...
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8095288 |
Reducing oscillations in a motor vehicle driveline
A method for reducing oscillations in a vehicle driveline includes transmitting torque to secondary wheels of the vehicle, determining a first rate of change in speed between the secondary wheels...
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8090513 |
Method for controlling an automated friction clutch
A method of controlling an automated friction clutch in a drivetrain of a motor vehicle between a drive motor and a manual transmission. During clutch actuation, at least one operating parameter of...
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8090499 |
Anti-rollback control via grade information for hybrid and conventional vehicles
A vehicle control system reduces vehicle rollback upon brake release. The control system includes a brake system, a vehicle grade measurement device and a controller that modulates applied brake...
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8090512 |
System and method for controlling a clutch fill event
A method optimizes a fill event of an apply chamber of a fluid-actuated clutch, and includes determining input values describing the fill event, and then estimating a fill time using the input...
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8073602 |
System constraints method of controlling operation of an electro-mechanical transmission with an additional constraint range
A method for controlling an electro-mechanical transmission mechanically coupled to first and second electric machines to transmit power to an output member includes determining motor torque...
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8073604 |
Method and system for protecting a starting clutch
A method protects a starting clutch. The method generates an estimated equivalent temperature of the starting clutch and performs an operation for protecting the starting clutch if the estimated...
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8065064 |
Shift control device for automatic transmission and control method thereof
An automatic transmission calculates a current thermal load state of the frictional element, predicts (S24, 531), prior to the start of the shift, a heat generation amount of the frictional element...
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8060286 |
Torque converter clutch control
A clutch control system comprises a clutch torque determination module and a clutch pressure control module. The clutch torque determination module determines a desired torque value for a torque...
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8060273 |
Method for diagnosing a component of a vehicle
A method for diagnosing a component of a vehicle, which presents the steps of: identifying a series of classes, each of which is associated to a given mode of operation of the component;...
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8058834 |
Control device for automatic transmission
A control device for an automatic transmission includes a current detecting unit for detecting motor current. The current detecting unit has a counter for counting variation number of a rotational...
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8050830 |
Driving apparatus for vehicle
A driving apparatus includes a first transmission mechanism receiving mechanical power from an engine output shaft by a first input shaft, a second transmission mechanism receiving the mechanical...
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8050835 |
Method and apparatus for clutch pressure control
A method, apparatus and system for controlling transmission clutch system output pressures is provided. A transmission control unit and a pressure control device including an electro-hydraulic...
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8046140 |
PTO overspeed protection strategy
An exemplary embodiment includes a method of operating a drivetrain. The drivetrain includes a PTO and a transmission having multiple speed ratios. The PTO includes a PTO output member and a PTO...
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8044785 |
Oil quantity monitoring system for motorcycle
The degradation of a feeling of ride is prevented by preventing engagement/disengagement (sudden engagement/disengagement) of a motorcycle hydraulic clutch due to a lack of hydraulic pressure....
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8046143 |
Automatic gear control device
An ECU executes a program including: a step of detecting a turbine revolution speed, a step of detecting an engine torque TE, a step of detecting a speed change ratio, a step of setting a range an...
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8046144 |
Systems and methods for non-linear proportional and derivative control during vehicle garage shifts
The present disclosure utilizes Non-linear Proportional and Derivative (NLPD) control on a duty cycle of an applying clutch for stationary and rolling vehicle garage shifts. The applying clutch can...
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8041489 |
Method for controlling a transmission during acceleration from idle
A method for controlling a transmission in a motor vehicle during acceleration from an idle condition begins when the vehicle is stationary, the engine is at idle, and the transmission is in the...
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8036800 |
Method for operating a motor vehicle control unit
A method for operating a control unit, such a control unit, and a computer program and computer program product for implementing the method are provided. In this context, the control unit is able...
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8027772 |
Power transmission gearbox presenting a modifiable speed of rotation at its outlet, and a corresponding method of operation
A power transmission gearbox for rotorcraft for transmitting rotary movement from at least two engine members to a main shaft, wherein the gearbox presents at least two transmission systems for...
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8024098 |
System and method for determining the engagement point of a clutch
A method of determining an engagement position of a clutch of a vehicle is provided. The clutch is operable by a clutch pedal adapted to move over a travel range. The method comprises determining a...
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8012061 |
Vehicle overspeed system implementing impeller clutch lockout
An overspeed system for a vehicle is disclosed. The overspeed system may have a power source, a transmission unit, and a torque converter assembly operatively coupling the power source to the...
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8010268 |
Control apparatus for automatic transmission
An ECU executes a program including causing a brake to enter an engaged state, when a first gear is implemented and when a difference between an output shaft rotation speed estimated from an input...
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8000868 |
Method and control unit for controlling a friction clutch between an internal combustion engine and a change speed transmission
A method controls a friction clutch disposed between an internal combustion engine and a change speed transmission. The friction clutch is controlled in such a way that it transmits an average...
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7998026 |
Vehicle launch using a transmission input clutch
A method for controlling a transmission input clutch during a vehicle launch includes selecting a subject device that transmits torque between an input and an output, a providing a mathematical...
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