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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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)...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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;...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >