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Transmission Control

Transmission Control patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Machine Element Or Mechanism


Control Lever And Linkage Systems > Multiple Controlled Elements > Transmission Control



Sensor device, and a magnet element for a sensor device
11/27/14 - 20140345408 - A sensor device having at least one sensor element, such as a Hall sensor element, and at least one magnet element that can move in relation to the sensor element. The sensor element has a number of differently magnetized regions. The sensor element is configured to issue a sensor signal,...

Reference position setting method for automated manual transmission
04/17/14 - 20140102236 - A reference position setting method for an automated manual transmission is allowed to initialize an accurate reference position while minimizing relative movement of a finger, and to reduce noise generated when the finger moves to an end of a shifting direction to secure quieter and faster operation capability....

Internal gear shift for a manual transmission and manual transmission for a motor vehicle
09/19/13 - 20130239729 - An internal gear shift for a manual transmission is provided. The internal gear shaft includes a shifting shaft mounted rotationally moveably about its axis and displaceably in axial direction, counter-engagement means, and at least two engagement elements. The engagement elements interact with the counter-engagement means in order to lock the...

Actuating device for an automated dual clutch transmission of a motor vehicle, and method for controlling an actuating device of said type
04/11/13 - 20130087003 - An actuating device for an automated dual clutch transmission of a motor vehicle drivetrain in manual-shift mode includes first and second shift elements disposed in a region of a steering column, the first shift element being configured to effect an upshift and the second shift element being configured to effect...

Driveline stiffness relaxation systems and methods for dfco operation
09/20/12 - 20120234123 - A powertrain system includes an engine control module that generates a negative torque transition signal based on a pending negative torque event of an engine. A transmission control module receives the negative torque transition signal from the engine control module. The transmission control module increases a slip speed of a...

Transmission shifter with reduced cross car travel
06/28/12 - 20120160049 - A transmission shifter for a vehicle includes a base, a transmission shift lever, a cable bracket adapted for connection to a transmission control member, and a yoke. The yoke and the cable bracket are assembled and define a first pivot axis on the base. The shift lever is pivoted to...

Shifting range sensing device and shifting operation device with the same
06/07/12 - 20120137810 - A shifting range sensing device may include an electronic communication unit that includes a housing fixed to an outside of an external bracket of a shift lever, a magnet being disposed in the housing and rotatable in a forward-backward direction therein wherein the magnet pivots with rotation of the shift...

Range sensing apparatus
01/05/12 - 20120000309 - A housing slidably guides a slider, which is driven in response to selection of a shift range of an automatic transmission. Upper and lateral sides of a movable range of the slider are covered with the housing. Thereby, application of hydraulic fluid and foreign objects to guide rails is limited...

Transmission control system and method thereof
11/17/11 - 20110277577 - A method of managing a transmission ratio with an assisted CVT with a governed engine to emulate a hydrostatic transmission and prevent a drivebelt abuse is provided, the method comprising: providing a reference power source rotational speed, using the assisted CVT to transmit rotatable motion between a power source and...

Control apparatus for four-wheel drive vehicle, four-wheel drive vehicle, and control method
11/10/11 - 20110271781 - When a count value concerning with the travel of the vehicle in a two-wheel drive state reaches or exceeds a predetermined value, the state of drive in a transfer is temporarily switched to a four-wheel drive state by connecting a synchromesh mechanism while keeping a mesh clutch disconnected, so that...

Fork position and synchronization control in a dual clutch transmission using pressure control solenoids
10/20/11 - 20110252910 - A dual clutch transmission (DCT) control module includes a position control module that actuates a shift fork of the DCT during a first shift state based on a measured shift fork position and a target shift fork position. A force control module adjusts a control force associated with the shift...

Vehicle transmission apparatus
10/06/11 - 20110239800 - A vehicle transmission apparatus configured such that when transitioning to an actual traveling state by forming one of the shift speeds from a free running state in which a vehicle is in a traveling state and the speed change mechanism is in a neutral state with none of the shift...

Control device
10/06/11 - 20110239801 - A control device includes an input member drivingly coupled to at least one of an internal combustion engine and a rotating electrical machine as driving force sources of a vehicle. When downshifting or upshifting the control device controls the engagement pressure of a direct coupling clutch to a pressure lower...

Method for running a drive line
09/15/11 - 20110219900 - A method of operating a powertrain may include providing an automatic transmission disposed between a drive unit and an axle drive. One input shaft of the automatic transmission is connected by means of an operable clutch to the drive unit and an output shaft of the automatic transmission is connected...

Device and method for operating a drive having an electrically drivable axle
08/25/11 - 20110203400 - A drive device for a vehicle, an electric machine and an axle which is drivable by the electric machine. A disengageable mechanical coupling is provided between the drivable axle and the electric machine. This coupling is designed as a shiftable freewheel coupling....

Method for reversing the direction of travel of a vehicle
08/18/11 - 20110197694 - During reversal of drive of a vehicle, particularly a work machine with a hydrodynamic torque converter and a bypass clutch, the bypass clutch is first disengaged, during the reversal process. Next, a previously engaged first driving direction clutch, driving the vehicle in the first driving direction, is disengaged and a...

Sensorless adaptive safety actuator (sasa)
07/28/11 - 20110179898 - One aspect of the instant disclosure is to provide a sensorless adaptive safety actuator. The safety actuator comprises a driving unit, a transmission unit coupled to the driving unit, and an output unit coupled to the transmission unit. The transmission unit comprises a load-adaptable retracting mechanism. When the output unit...

Driving force transmission apparatus and control method therefor
07/14/11 - 20110167944 - A driving force transmission apparatus includes: a driving force transmission shaft receiving driving force of a driving source from a rotating member and transmitting the driving force from a main driving wheel side to an auxiliary driving wheel side; a first driving force interruption unit connects/disconnects the driving force transmission...

Method for improving shift quality in an automatic transmission
06/30/11 - 20110154931 - A method is provided for improving shift quality in an automatic transmission. In many automatic transmissions, the shift quality during lift foot upshifts is unsatisfying. Generally, two types of complaints concerning shift quality are known: harsh feel right after the shift order and bump at the synchronization of the shift....

Combination transmission selector and speed sensor
06/16/11 - 20110138953 - A combination module for an appliance includes a transmission selector mechanism adapted to selectively operate transmission shift structure of the appliance, and a speed sensor mechanism adapted to sense the operative speed of a motive element of the appliance. In one example, the combination module further includes a single electrical...

Power tool
06/16/11 - 20110138954 - A power tool includes a power source, a speed change mechanism and a tool bit. The speed change mechanism includes first and second rotating shafts disposed parallel to each other, a first power transmission path provided with a first gear train and a first clutch and a second power transmission...

Control device for a gearbox, in particular for a motor-vehicle gearbox, with a system for identifying the engaged gear
11/11/10 - 20100282014 - The control device comprises an elongated mechanical transmission member (10; 110) interposed between the gearbox and a control member (100) for transmitting to the gearbox the commands imparted through the control member, in such a manner that the gear engaged by means of the gearbox is linked to the linear...

Gear shift device
09/30/10 - 20100242655 - A gear shift device is provided which changes speed by transmitting rotation of a shift spindle by gear shift operation input to rotation of a shift drum through an intermittent feed mechanism and a lost motion mechanism. An upstream rotation holding mechanism is provided to hold in a required rotational...

Multiple-ratio transmission with concentric offset shift forks
09/16/10 - 20100229668 - A countershaft transmission with positive engagement clutches for changing transmission gearing ratios and shift rails for supporting shift forks in a transmission housing, one shift rail being adapted to support at least two shift forks, whereby an assembly of shift rails is simplified and the transmission housing size is reduced....

Gear shift device
05/06/10 - 20100107796 - This gear shift device is used in a transmission of an engine, and is provided with: a shift drum that changes a speed change stage of the transmission according to a rotational position about an axis; an actuator having a driving shaft substantially orthogonal to the shift drum; a worm...

Vehicle range switching device
10/01/09 - 20090241713 - A vehicle range switching device including a motor that is controlled according to operation of a shift range selecting portion, a driving portion that is driven by the motor, and a detecting portion for detecting a pivot position of a range control shaft for transmitting driving force from the driving...

Switching device for a geargox
09/24/09 - 20090235770 - A shift device (13) for a manual transmission having actuation mechanisms for shifting and selecting in which the selection motion is carried out by way of a selector actuator (10), which is connected to a driving lug (5) of a selector plate (4). An anchor (1) of the selector actuator...

Transmission device and method for operating a vehicle drivetrain
08/20/09 - 20090205454 - A transmission device has at least two change-under-load shift elements with transmission capacities that are varied an actuation device. A method for operating a drive train including transmission and drive engine includes a step that when the transmission is shifted, one of the shift elements, which is engaged in the...