Matches 1 - 50 out of 156 1 2 3 4 >


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US20130046425 METHOD FOR CONTROLLING POWERTRAIN PUMPS  
A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the...
US20140032067 METHOD FOR ELECTRONICALLY CONTROLLING A BICYCLE GEARSHIFT AND ELECTRONICALLY SERVO-ASSISTED BICYCLE GEARSHIFT  
A method for electronically controlling a bicycle gearshift comprising at least one derailleur is disclosed, comprising the sequential steps of: a) imparting a movement on the derailleur of the...
US20120065854 SYSTEM AND METHOD TO PREVENT SHIFT HUNTING IN A POWERTRAIN  
A method for preventing shift hunting in a powertrain is disclosed. The powertrain includes an engine and a transmission having a variator, a first gearset, and a second gearset. The engine is...
US20100299033 METHOD FOR CONTROLLING PUMP TRANSITIONS IN A MULTI-MODE HYBRID TRANSMISSION  
A method of controlling a pump for a hybrid transmission includes commanding a first line pressure of the transmission and deriving a first torque value—an open-loop torque value—from the first...
US20090055062 GEAR SHIFTING CONTROL SYSTEM FOR WORK MACHINE  
A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area 62 of a display device 49...
US20080312798 Use of torque converter pump clutch to eliminate vibration jolt in a vehicle transmission  
The present invention is a method of engaging a drive gear in a vehicle transmission having a torque converter that reduces the sudden vibration jolt that often accompanies engagement of a drive...
US20130332039 VIBRATION DETECTION AND MITIGATION IN A VEHICLE  
A method of controlling a vehicle includes detecting vibration in a drivetrain of the vehicle with a fore/aft accelerometer during a launch event. An operating regime of the vehicle is identified...
US20110098896 AUTOMATIC TRANSMISSION AND PROTECTION METHOD THEREOF  
When temperature increase promotion processing (for example, prohibiting lockup application and prohibiting shifts to a high gear position) is started while an initial value of an ATF temperature...
US20090055063 AUTOMATIC GEAR CONTROL DEVICE  
An ECU executes a program including: a step (S100) of detecting a turbine revolution speed, a step (S200) of detecting an engine torque TE, a step (S300) of detecting a speed change ratio, a step...
US20120053800 TRANSMISSION OIL TEMPERATURE ESTIMATION SYSTEMS AND METHODS  
A system for a vehicle includes a filter module and a coefficient determination module. The filter module generates a valve body oil temperature signal as a function of a transmission oil...
US20110166757 CLOSED-LOOP FEEDBACK CONTROL AND REDUCTION OF THE TORQUE CONVERTER CLUTCH SLIP FOR ENHANCED DRIVABILITY FOR HEAVY TIP-IN MANEUVERS  
A method for responding to a rapid change in engine torque includes monitoring a change in engine torque and determining a rapid change in engine torque when the change in engine torque exceeds a...
US20090118953 FLUID SUPPLY DEVICE AND FLUID SUPPLY METHOD OF FLUID COUPLING  
An ECU executes a program including outputting, when the oil temperature THO of ATF
US20080126043 Model-based torque converter control  
A method of controlling hydraulic pressure to a torque converter is provided. The method includes: determining a slip error from a target slip value and a measured slip; integrating said slip...
US20150112560 TORQUE-BASED SHIFTING  
A computer-implemented shifting method for a vehicle is described. The method is based upon, at least in part, identifying a reference output torque at an output shaft associated with a...
US20140107901 METHOD FOR CONTROLLING SYNCHRONIZATION OF AUTOMATED MANUAL TRANSMISSION  
A method for controlling synchronization of an automated manual transmission includes: a step of dividing synchronization section that divides the entire synchronization section where...
US20150094920 METHOD FOR DAMPING VEHICLE DRIVE TRAIN VIBRATIONS  
A method for assuring that a signal, for damping drive train vibrations, is overlaid during the same time period as the drive train vibration, and not delayed by one time period. The method...
US20090281696 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...
US20130179046 METHOD AND SYSTEM FOR DETERMINING AN ACCUMULATOR PRE-CHARGE PRESSURE IN A FLUID CIRCUIT  
A system includes a pump, accumulator, a sensor which measures line pressure in a fluid circuit, and a controller. The controller plots and calculates respective slopes of first and second sets of...
US20140156155 Determination of Optimum Tractor Reverse Speed  
Machines, such as large tractors used in earthmoving, operate in a cycle of pushing forward and reversing to a starting point. The net performance of the machine is a function of the speed at...
US20090319143 UP-SHIFT CONTROL IN AN AUTOMATIC TRANSMISSION WITH NEGATIVE INPUT TORQUE  
A transmission control module including a shift control module that generates an enable signal when an up-shift is requested and the engine torque is below a threshold torque value. A turbine...
US20150142283 SHIFT RANGE SWITCHING APPARATUS  
There is provided a shift range switching apparatus that can perform appropriate fail-safe control when a power source supplied to an electronically controlled shift range switching apparatus is...
US20090306868 HYDRAULIC CONTROL DEVICE AND METHOD FOR AUTOMATIC TRANSMISSION  
There is provided a hydraulic control device for controlling a hydraulic pressure supplied to a vehicle start-up engagement element in an automatic transmission when a shift lever is moved from a...
US20090192685 Method of Operating a Transmission Auxiliary Pump  
A method of controlling an auxiliary pump for use with a transmission in a vehicle is provided, the vehicle having a system voltage/current. The method comprises: determining an optimal auxiliary...
US20090216397 DEVICE FOR ATTACHMENT TO A WHEEL AND WHEEL WITH SUCH A DEVICE  
A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an...
US20140095035 System and Method for Avoiding Engine Underspeed and Stall  
System and method for controlling a transmission in response to transient torque events are disclosed. The method includes commanding a maximum transmission output torque; comparing the commanded...
US20090125200 CONTROL SYSTEM FOR A TORQUE TRANSMITTING DEVICE IN AN AUTOMATIC TRANSMISSION  
A control system for controlling a torque transmitting device in a transmission includes a controller, a plurality of solenoids, and a valve assembly. The valve assembly has a plurality of signal...
US20150025761 MAGNETIC FIELD SENSOR, ACTUATING DEVICE AND METHOD FOR DETERMINING A RELATIVE POSITION  
A magnetic field sensor consists of a transmitter device for producing a magnetic field and a detecting device for detecting the magnetic field. The transmitter device and the detecting device are...
US20090011888 AUTOMATIC TRANSMISSION HYDRAULIC PRESSURE CONTROL APPARATUS  
An automatic transmission hydraulic pressure control apparatus decreases a hydraulic pressure lower limit value as much as possible without causing a non-operating zone of a solenoid valve to be...
US20110196587 DEVICE AND METHOD FOR AUTOMATICALLY ADJUSTING TORQUE TRANSMITTING ABILITY OF A TURBOCOMPOUND TRANSMISSION  
A device and method are provided for automatically adjusting torque transmitting ability of a hydrodynamic coupling in a transmission arranged between a power turbine and a crank shaft in a...
US20120035819 REAL TIME ESTIMATION ALGORITHM FOR TORQUE CONVERTER CLUTCH FEED FORWARD PRESSURE FOR ECCC CONTROL  
A powertrain includes a torque generative device and a torque converter having an impeller, a turbine and a torque converter clutch. A method to control torque converter slip includes monitoring a...
US20150032348 INTEGRATED TRANSMISSION AND AUXILIARY GEARBOX CONTROL  
A powertrain of a vehicle has a drive unit, a transmission and an auxiliary gearbox. Operation of the transmission and the auxiliary gearbox is controlled by a transmission control unit. The...
US20110224877 INTEGRATED TRANSMISSION AND AUXILIARY GEARBOX CONTROL  
A powertrain of a vehicle has a drive unit, a transmission and an auxiliary gearbox. Operation of the transmission and the auxiliary gearbox is controlled by a transmission control unit. The...
US20090171545 Control device for automatic transmission  
An exemplary control device includes an input torque detection unit that detects an input torque input to the input shaft; and a controller that: determines torque distribution of two of the...
US20090084653 Electrically Variable Transmission with an Axially-Moveable Selectable One-Way Clutch Assembly  
An electrically variable transmission (EVT) includes two shafts and a selectable one-way clutch (SOWC) having a first and second ring. The SOWC selectively connects the shafts, and is applied by...
US20090118921 METHOD FOR STABILIZATION OF MODE AND FIXED GEAR FOR A HYBRID POWERTRAIN SYSTEM  
A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission selectively operative in one of a plurality of transmission operating range states and one of a...
US20150057900 Method for Cutting Off a Gearshift in which at Least One Form-Fitting Shifting Element is Participating, in an Automatic Transmission of a Motor Vehicle  
Within the framework of a method for terminating a gearshift for an automatic transmission for a motor vehicle, at which at least one positive-locking shifting element is involved, after the...
US20140222304 System And Method For Controlling A Continuously Variable Transmission During A Shuttle Shift  
A method for controlling a continuously variable transmission of a work machine during a shuttle shift is disclosed. The method may generally include initiating a directional swap by disengaging...
US20120290180 CONTROL DEVICE FOR AUTOMATIC TRANSMISSION  
An exemplary control device includes an input torque detection unit that detects an input torque input to the input shaft; and a controller that: determines torque distribution of two of the...
US20120245812 System and Method for Automatically Downshifting an Automatic Transmission with Alternate Forward Launch Gear  
An electronic control system for an automatic transmission having an alternate forward start gear, a lower forward start gear and a lower forward start gear lock our feature, in which the...
US20110313631 GEAR SELECTION METHOD FOR AN AUTOMATIC TRANSMISSION FOR A TRACTION PHASE AFTER A COASTING PHASE OF A MOTOR VEHICLE  
Disclosed herein is a gear selection method and device for an automatic transmission for a traction phase (Z2) after a coasting phase (S) of a motor vehicle. According to the method, in a traction...
US20140012472 TRAVEL CONTROL UNIT OF WORKING VEHICLE  
A travel control unit of a working vehicle includes an HST which is a hydraulic continuously variable transmission having a hydraulic pump and a hydraulic motor, a pedal sensor which is an...
US20110004383 METHOD FOR MONITORING A DRIVE TRAIN  
A method for monitoring an automated drive train of a motor vehicle, in particular of a passenger car. The drive train comprises a drive engine, a friction clutch arrangement and a multi-speed...
US20090118954 METHOD FOR MONITORING AN AUXILIARY PUMP FOR A HYBRID POWERTRAIN  
A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when...
US20090018737 METHOD FOR CONTROLLING A VEHICLE EQUIPPED WITH A MECHANICAL SERVO TRANSMISSION  
A method for controlling a vehicle presenting the steps of: verifying, at starting of an internal-combustion engine, whether a memory of calibrations contains the function of transmissibility of a...
US20090254255 Dynamic pressure control system with solenoid valve command current trimming  
A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid...
US20140343810 CONTINUOUSLY-VARIABLE TRANSMISSION AND CONTINUOUSLY-VARIABLE TRANSMISSION CONTROL METHOD  
A first determining unit configured to determine whether the indicated pressure of a primary pulley pressure has become a line pressure during an up shift, an indicated pressure control unit...
US20110144873 TRANSMISSION  
A transmission, such as an automated manual transmission for a motor vehicle, with at least one shift group, such that the shift group or each shift group comprises a shift rail which actuates a...
US20100100292 ENGINE SERVO LOADING DEVICE AND CONTROL METHOD FOR DYNAMIC OPTIMIZATION SEARCHING OPERATION OF THE DEVICE  
A dynamic optimization searching method for a torque servo loading device of an engine is disclosed, the torque servo loading device includes a motor, a torque servo driver, a primary control...
US20080312033 CONTROL DEVICE AND METHOD FOR AUTOMATIC TRANSMISSION  
A brake pressure predetermined value (Pa) required to bring a vehicle to a standstill while the vehicle is stationary is calculated on the basis of a slope angle (θ), and when the position of a...
US20130253788 METHOD FOR THE OPERATION OF A TRANSMISSION DEVICE IN A VEHICLE DRIVE TRAIN  
A method shifting a vehicle drive-train transmission having frictional and interlocking shifting elements which are engageable to obtain various gears. When shifting from a current gear to a...

Matches 1 - 50 out of 156 1 2 3 4 >