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| Number | Title | Issue Date |
| 8147378 | Airflow based idle speed control power security An engine control system comprises a torque determination module, a limit determination module, a torque limit module, and a torque control module. The torque determination module determines a desired torque based on a desired engine speed. The limit determination m... | 04/03/2012 |
| 8092342 | Method for adapting an automated transmission of a heavy vehicle in consideration of a speed sensitive PTO Method for adapting an automated transmission of a heavy vehicle in consideration of a speed sensitive PTO. The method selects appropriate gears based on the constraint that the engaged PTO should remain below a set speed limit. The information about the speed limit... | 01/10/2012 |
| 8062180 | Method for automatically engaging a parking lock of an automatic or automated gearbox of a motor vehicle A method of automatically engaging a parking lock or an automatic or automated gearbox of a motor vehicle, which can be engaged depending on a drive position selected by the driver of the motor vehicle, by way of a selector device and depending on other operating pa... | 11/22/2011 |
| 8002669 | Method for the operation of a drivetrain A method for operating a motor vehicle drivetrain comprising at least an automatic transmission and a drive assembly. The automatic transmission includes at least five shifting elements to transmit torque and/or power. In each forward and reverse gear, three shiftin... | 08/23/2011 |
| 7980994 | Speed control structure and method for work vehicle A load control structure for a work vehicle comprises: set rotation speed detection device for detecting a set rotation of an engine of the work vehicle; actual rotation speed detection device that senses an actual rotational speed of the engine; continuously variab... | 07/19/2011 |
| 7955217 | Power train control system A power train is provided having a power source operably coupled to a transmission to transmit a power output to at least one traction device. The power train also has a controller configured to regulate the power output so that the power output generated when the a... | 06/07/2011 |
| 7938750 | Method and device for operating a drive unit In a method and a device for operating a drive unit, e.g., of a vehicle, to provide improved diagnosis of a state of a power transmission unit, the power transmission unit in the engaged state transmits an output power of an engine to a drive train, the state of the... | 05/10/2011 |
| 7935025 | Methods and systems for assisted direct start control Methods and systems are provided for pressurizing a hydraulic circuit comprising a hydraulically actuated transmission component and an accumulator. One example method comprises, during an engine idle-stop, adjusting actuation of the hydraulically actuated transmiss... | 05/03/2011 |
| 7892142 | Hydraulically servocontrolled transmission for a road vehicle provided with an internal combustion engine A hydraulically servocontrolled transmission for a road vehicle provided with an internal combustion engine; the servocontrolled transmission displays: a servocontrolled mechanical gearbox operated by at least one first hydraulic actuator; a servocontrolled clutch o... | 02/22/2011 |
| 7892143 | Shift control apparatus An ECU executes a program that includes the steps of performing neutral shift control, clutch release control, and engine torque control when a shift is required, the ste of moving a shift selector shaft in a selecting direction when a gear is disengaged and a shift... | 02/22/2011 |
| 7878944 | Control method of a power transmission device To provide a control method for a power transmission device which can prevent the generation of impacts and noises when a speed change mechanism is changed over from a neutral state to a first speed gear without using a brake mechanism. In a control method of a powe... | 02/01/2011 |
| 7867137 | Method for the operation of a drivetrain A method for operating a motor vehicle drivetrain with at least an automatic transmission and a drive motor. The automatic transmission includes at least five shift elements to transmit torque and/or power. In each of the forward and reverse gears, at least three sh... | 01/11/2011 |
| 7857728 | Control apparatus for automatic transmission having fail-safe function during vehicle stop A control apparatus for an automatic transmission including a plurality of frictional elements each arranged to be engaged by receiving supply of an engagement pressure regulated by a solenoid, and being arranged to attain a plurality of gear stages by combination o... | 12/28/2010 |
| 7846063 | Automatic calibration of a torque measuring system A method for real time determination of a base torque value, representative of maximum available torque of an engine at a specified engine rpm, as a function of engine torque during predetermined engine conditions. The base torque value is used to determine shift po... | 12/07/2010 |
| 7758468 | Integrated power train control system for a motor vehicle A powertrain control system for management and supervision of engine and servo-assisted gearbox control modules is arranged for determining the power to be applied to the drive wheels of the vehicle as a function of signals indicative of commands imparted by the dri... | 07/20/2010 |
| 7749136 | Gearbox actuation system and method for adjusting a gearbox actuation system A method for the adjustment of a gearbox actuation system of an automated gearbox of a vehicle. The gearbox includes a shift finger; a plurality of gearshift rails, each rail in the plurality of gearshift rails in a respective position; a neutral gap with a first po... | 07/06/2010 |
| 7727115 | Two speed transmission and belt drive system A two speed transmission and belt drive system utilizing the transmission. The two speed transmission comprises a planetary gear train comprising an input pulley connected to an input carrier, and a sun gear and a ring gear. The input carrier also comprises a plural... | 06/01/2010 |
| 7717823 | Method and apparatus for changing shift scheduling modes of automated mechanical transmission A method of and apparatus for operating an automated mechanical transmission (AMT) achieves switching between and selecting one of a plurality of automated mechanical transmission shift scheduling modes. Such switching or selection occurs and is controlled by the ve... | 05/18/2010 |
| 7704188 | Method for the operation of a transmission device with several hydraulically actuated shift elements A method is described for the operation of a transmission device (3) with several shift elements (5, 6) actuated hydraulically by a pressure source (4) for engaging and disengaging various transmission ratios and with several electric actors ( | 04/27/2010 |
| 7686737 | Speed control structure and method for work vehicle A load control structure for a work vehicle comprises: set rotation speed detection device for detecting a set rotation of an engine of the work vehicle; actual rotation speed detection device that senses an actual rotational speed of the engine; continuously variab... | 03/30/2010 |
| 7635318 | Automatic transmission shift control apparatus and method An automatic transmission shift control apparatus includes a shift point learning-correcting unit and a high acceleration time upshifting unit. The shift point learning-correcting unit executes learning-correction of a shift point during an upshift such that an inpu... | 12/22/2009 |
| 7635317 | Method for establishing malfunctions of components of a motor vehicle power train A method for establishing malfunctions of components of a motor vehicle power train as well as the reaction to the same. The power train has a drive motor and an automatic transmission with respectively allocated control devices, setting apparatus and sensors, and t... | 12/22/2009 |
| 7632213 | Gear-shifting optimization method and corresponding control unit A method is disclosed for optimizing the gear-shifting sequence in a step-variable transmission fitted in a motor vehicle, in particular in an automated shift transmission, which has a plurality of gears, which can be engaged and disengaged by means of respective cl... | 12/15/2009 |
| 7604568 | Method for controlling 3-2 shift before stopping of automatic transmission and system thereof A method and system for controlling a 3→2 shift before stopping of an automatic transmission reduces shift shock as a consequence of an operation of a control duty being delayed according to an angular velocity of an engine at a shift start point in the 3→2 shif... | 10/20/2009 |
| 7591759 | Propulsion control system for a motor vehicle The system controls the propulsion of a motor vehicle with a propulsion system (1) which includes an internal combustion engine (E) with a shaft (S) for coupling to a transmission (2). The system includes an accelerator (A) with an associated sensor de... | 09/22/2009 |
| 7578767 | Automatic transmission control device An automatic transmission control device for a vehicle includes a gear change operation that is performed based on a throttle opening, a vehicle speed and an engine rotational speed. The automatic transmission control device also obtains a displacement of the thrott... | 08/25/2009 |
| 7553258 | Excavation machine with constant power output control for torque-converter driven working element A controller for crawlers of a trencher receives an indication of the speed of an engine and the speed of an output of a torque converter coupling the engine to an excavating element for digging a trench. Based on the ratio of the speed of the engine and the speed o... | 06/30/2009 |
| 7458917 | Work vehicle with a speed change device A work vehicle with a speed change device, comprises, a plurality of wheels including at least one driven wheel; an engine for driving the driven wheel; a speed change device provided between the driven wheel and the engine; and automatic shifting mechanism. The aut... | 12/02/2008 |
| 7442148 | Method for operating the drive train of a motor vehicle In a method for operating a motor vehicle in the event of a shift of a power divider actuated by external force, before the commencement of the shift of the power divider, a control device reduces the torque at the shifting members involved in the shift. The vehicle... | 10/28/2008 |
| 7438666 | Gearbox actuation system and method for adjusting a gearbox actuation system The invention relates to a method for adjusting the gearbox actuation system of an automatic gearbox of a vehicle, whereby at least one reference travel is made with the gear engaged. The invention further relates to a gearbox actuation system for selecting and enga... | 10/21/2008 |
| 7435200 | Hydraulic pressure control apparatus of belt-drive continuously variable transmission for automotive vehicle A hydraulic pressure control apparatus of a belt-drive continuously variable transmission (CVT) for an automotive vehicle, includes a vehicular information detector that detects engine-and-vehicle operating conditions and a hydraulic actuator that regulates primary ... | 10/14/2008 |
| 7429233 | Method for shifting from a source gear to a target gear in a twin clutch transmission Gear shifts are carried out from a source gear to a target gear of a twin clutch transmission. The twin clutch transmission has sequentially directly successive gears assigned to different transmission input shafts. In each case one upshift and downshift threshold, ... | 09/30/2008 |
| 7428457 | Method for interpreting driver requested axle torque A torque request generation system for use with a coordinated torque control system of a vehicle includes an input receiving a vehicle speed and an axle torque command. A datastore records a three-dimensional torque surface defined in terms of a coordinate system ha... | 09/23/2008 |
| 7396317 | Vehicle and method for automatic gear selection in a gearbox forming part of a vehicle Method and arrangement for providing a vehicle having an internal combustion engine and a drivetrain coupled to the internal combustion engine. A control unit is utilized for automatic gear selection, based on a function of the current rotational speed of an input s... | 07/08/2008 |
| 7393306 | Drive power transmission device During switching of an input rotation transmission mechanism, the actual engine rotational speed at the start of the switching and the speed changing ratio change amount owing to the switching operation are used as a basis for computing the target engine rotational ... | 07/01/2008 |
| 7390284 | Vehicle transmission shift quality A vehicle powertrain modelling system includes a powertrain model (20), a vehicle model (30), a seat model (55), a driver model (60) and a correlation element (50) comprising a neural network. As a result vehicle development is enh... | 06/24/2008 |
| 7381150 | Hydraulic regenerative drive system and controls The hydraulic regenerative drive system for a vehicle includes an electronic controller, a hydraulic control circuit that receives control signals from the electronic controller, a reservoir in fluid communication with the hydraulic control circuit, a pump/motor uni... | 06/03/2008 |
| 7381149 | Method and device for operating a drive unit A method and a device for operating a drive unit provide a switch between half-engine operation and full-engine operation. A switch takes place between two operating states of a first component of the drive unit as a function of a first performance quantity of the d... | 06/03/2008 |
| 7377827 | Marine propulsion shift control A marine propulsion system that utilizes a transmission shift sequence to control shifting of the propulsion system transmission between forward and reverse gears. The marine propulsion system includes a controller that executes the transmission shift sequence using... | 05/27/2008 |
| 7370516 | Method for estimating transmission input torque A method for estimating transmission input torque is provided. The method includes identifying a plurality of measurable characteristics that influence transmission input torque. Thereafter, transmission input torque values are measured on a sample powertrain operat... | 05/13/2008 |
