Interrelated power delivery controls, including engine control inventions

20080234097 - Clutch control for hybrid transmission: A method and system to off-load motive torque from a clutch to execute a transmission shift is provided. The powertrain includes torque-generative devices operably connected to a two-mode, compound-split, hybrid electro-mechanical transmission. The method includes determining a commanded output torque, and a shift command. A first torque is transmitted by... Agent: General Motors Corporation Legal Staff

20080234096 - Hybrid utility vehicle: A serial hybrid drive system for off-road utility vehicles and/or riding tractors including one or more electric motors (8, 8a, 8b) for driving the vehicle. The motors are connected to the driven wheels (11), with or without individual gear boxes 9a, 9b) or transmissions, to turn the wheels. The vehicle... Agent: Wegman, Hessler & Vanderburg

20080234098 - Method of operating a hybrid drive system and hybrid drive system with two partial drives: a second gear changing partial drive 16 with an input shaft 18 and an output shaft 24 and a second group of gear changing pairs of gearwheels each having a gearwheel connected in a rotationally fast way to its shaft and a switching gearwheel which can be switchably coupled to... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20080234099 - Control valve assembly for controlling a starting clutch of an automatic transmission: The invention involves a control valve arrangement to activate at least one start-up clutch of a motor vehicle automatic transmission with at least one clutch control valve (3, 3′, 3″) across which a supply pressure (P_V1) can be led into a pressure chamber of an associated clutch activation device (4,... Agent: Davis Bujold & Daniels, P.l.l.c.

20080234100 - Control valve arrangement for controlling a starting clutch of an automatic transmission: A control valve arrangement having a clutch regulation valve (3), which pressurizes a device to actuate the clutch, and a valve that produces a controlled pilot pressure (P_VST3). An electronic control unit (ECU) controls a valve to supply a control valve with the pressure (P_VST3). The arrangement further having a... Agent: Davis Bujold & Daniels, P.l.l.c.

20080234101 - Driving force distribution apparatus: A friction clutch which transmits motive power of a main drive shaft to an auxiliary drive shaft, a piston which generates pressing force against the friction clutch, a cylinder chamber which houses the piston movably in the axial direction, a pressure sensor which detects the oil pressure of the cylinder... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080234102 - Method and arrangement for adapting shifting strategies in a heavy vehicle including an automated transmission and experiencing a pto load: Method and arrangement for adjusting shift characteristics of a transmission of a heavy vehicle. A heavy vehicle is operated and that is powered by an internal combustion engine equipped with an automated manual transmission and a power take off. The power take off, when operating, imposes a torque-consuming load on... Agent: Wrb-ip LLP

20080234103 - Fuel quality indication for adaptive transmission control: A control system and method for adaptively controlling transmission ratio shifting in an electronically controlled transmission. A refueling event is detected. After the detected refueling event, fuel consumption is monitored for a predetermined period during which a change in composition of fuel to the engine reaches or approaches a steady... Agent: Christopher Devries General Motors Corporation

20080234104 - Method and device for controlling engine torque and speed: A method and device for modifying throttle control characteristics of a throttle control in a vehicle, the vehicle including an engine coupled to engine driven vehicle wheels via a stepped gear mechanical transmission, and where requested engine torque at a given engine speed of the engine is controlled as a... Agent: Wrb-ip LLP

20080234105 - Control system and method for automatic transmission: A worsening of drivability is to be kept to a minimum by making a fail-safe control taking the state in the event of failure of a shifting operation into account. When clamping a sleeve to a free rotatable gear and during the period after instructing movement of the sleeve to... Agent: Crowell & Moring LLP Intellectual Property Group

20080234106 - Engine control for displacement on demand: An engine control system for controlling a displacement on demand engine having a plurality of cylinders includes a torque converter with a torque converter clutch. A control module determines a slip speed of said torque converter clutch, estimates a temperature state of said torque converter clutch based on said slip... Agent: General Motors Corporation Legal Staff

20080227589 - Method for controlling an overrun condition of a hybrid vehicle and hybrid vehicle: A method is for controlling an overrun condition in a hybrid vehicle having a combustion engine and additionally at least one electric motor as well as an overrun fuel cutoff, which interrupts a fuel supply to the combustion engine when the vehicle is in an overrun condition and restores the... Agent: Kenyon & Kenyon LLP

20080227590 - Vehicle, driving apparatus and control method of both: During a standstill, a prescribed rotation speed N3, which is lower than a prescribed rotation speed N2 used during a travel at a low vehicle speed, is set as a minimum rotation speed Nemin (S410), and when a demand for an idle operation has been made (S490), the minimum rotation... Agent: Kenyon & Kenyon LLP

20080227591 - Vehicular drive system and control method: A vehicular drive system includes a standby control apparatus which controls a switch to standby control based on a switching line graph that has a standby region that places a differential state switching device in a state just before it starts to apply. This standby region is located between a... Agent: Oliff & Berridge, PLC

20080227592 - Method for starting an internal combustion engine in a parallel hybrid drive train: A method for starting an internal combustion engine in a parallel hybrid drive train of a motor vehicle. The drive train comprises an automatic transmission (1) providing a drive shaft (2) connected to an internal combustion engine, one output shaft (3) connected to one driving axle of the motor vehicle,... Agent: Davis Bujold & Daniels, P.l.l.c.

20080227593 - Method and control device for adjusting a rotational speed of a shaft of a gear change transmission: In a method and control device for adjusting a rotational speed of a shaft of a gear change transmission of a motor vehicle, a torque required for the acceleration of the transmission and derived from a drive motor is transmitted by means of an automated clutch and using the torque... Agent: Klaus J. Bach

20080227594 - Hydraulic system for controlling a belt-driven conical-pulley transmission: A hydraulic system for controlling a belt-driven conical-pulley transmission of a motor vehicle, wherein the transmission has a variably adjustable transmission ratio. The hydraulic system includes a first valve arrangement to ensure a contact pressure in the belt-driven conical-pulley transmission, a second valve arrangement to control the transmission ratio of... Agent: Alfred J Mangels

20080227595 - Hydraulic system for controlling a belt-driven conical-pulley transmission: A hydraulic system for controlling a belt-driven conical-pulley transmission of a motor vehicle having a variably adjustable transmission ratio, and having an electrical actuation system for overall control of the hydraulic system, and a hydraulic parking lock-release system to control a parking lock. In order to provide an improved hydraulic... Agent: Alfred J Mangels

20080227596 - Method for limiting drive train torque: A method is provided for limiting a torque output associated with a power conversion unit. The method may include receiving data related to a pressure associated with an implement system hydraulic cylinder, determining, based on the data, a preferred torque value, wherein the preferred torque value is below a predetermined... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20080227597 - Torque converter impeller clutch control: A system for controlling a torque converter of an automatic transmission driven by a power source, the system including a torque converter an impeller, a turbine driveably connected to a transmission input and able to be driven hydrokinetically by the impeller, a stator, an impeller clutch for alternately engaging and... Agent: Macmillan, Sobanski & Todd, LLC

20080227598 - Selectable drivetrain control for a vehicle: A selectable drivetrain control for a vehicle includes a controller configured to receive input signals and issue predetermined output command signals corresponding to the status of the input signals. A first sensor is configured to provide an input signal to the controller relating to the actuation status of a brake... Agent: Eley Law Firm Co.

20080227599 - Automatic transmission control device: In an automatic transmission control device, multiple electromagnetic valves control fluid pressure of working fluid to be applied to multiple friction elements of an automatic transmission device, so that a transmission gear is changed by engaging some of the friction gears and/or disengaging the other of the friction elements. The... Agent: Nixon & Vanderhye, PC

20080227600 - Method for shifting a motor vehicle automatic transmission with a hydrodynamic torque converter when the vehicle comes to a stop: A method for shifting an automatic transmission (8) of a motor vehicle having a hydrodynamic, converter (6), when the vehicle slows from driving to a standstill a predetermined stopping condition of the automatic transmission (8) exists, such that the transmission (8) is shifted into neutral. To avoid disadvantages from shifting... Agent: Davis Bujold & Daniels, P.l.l.c.

20080227601 - Method for controlling a manual transmission in the event of a disorderly engine behavior: A method for controlling a partially unsynchronized manual transmission, which realizes the increase of a rotational speed of a transmission part to be synchronized during a gear change procedure by connecting one element of the transmission, via a shiftable clutch, to a drive motor and by making available to this... Agent: Davis Bujold & Daniels, P.l.l.c.

20080220932 - Drive system for a motor vehicle comprising an internal combustion engine and an electric motor: The invention relates to an apparatus and a method for starting an internal combustion engine for a motor vehicle, wherein the internal combustion engine has an associated electrical machine (1) which is operated as a starter/generator. During starting, the electrical machine (1) is supplied with a voltage which is obtained... Agent: Crowell & Moring Intellectual Property Group

20080220933 - Vehicular control apparatus and control system: A control apparatus for a vehicle is provided with an electric motor that outputs driving force for running the vehicle; an automatic transmission that establishes a plurality of gears by selectively applying and releasing a plurality of friction apply elements in a predetermined combination for each gear among the plurality... Agent: Sughrue Mion, Pllc

20080220934 - Hybrid powertrain torque control: A method of regulating a torque output of each of an internal combustion engine (ICE) and an electric machine (EM) in a hybrid powertrain system includes determining a desired axle torque of the hybrid powertrain system and arbitrating the desired axle torque and a first plurality of torque requests in... Agent: General Motors Corporation Legal Staff

20080220935 - Hydraulic system for controlling a belt-driven conical-pulley transmission: A hydraulic system for controlling a belt-driven conical-pulley transmission of a motor vehicle, wherein the transmission has a variably adjustable transmission ratio. The hydraulic system includes a first valve arrangement to control a contact pressure in the belt-driven conical-pulley transmission, a second valve arrangement to control the transmission ratio of... Agent: Alfred J Mangels

20080220936 - Automatic transmission assembly for a vehicle, and vehicle incorporating same: An automatic transmission assembly having a transmission unit including a plurality of gear pairs, a shift drum, a pair of clutches; and a controller. The controller performs a preliminary upshifting action in advance for angularly moving the shift drum depending on a next gear position in an upshifting direction while... Agent: Carrier Blackman And Associates

20080220938 - Clutch control method and controller therefor: A method for clutch disengagement at idling running of a vehicle including an automated manual transmission is characterized in that a rate of the clutch disengagement is controlled responsive to a brake pedal force applied to a brake pedal by a vehicle operator. A clutch disengagement controller controls a rate... Agent: Wrb-ip LLP

20080220937 - Control apparatus of driving system for vehicle: A control apparatus for a vehicle that decreases shift shock generated by full engagement of a clutch at completion of an inertia phase. The apparatus includes a driving source, a step automatic transmission arranged to attain a predetermined shift stage by engagement of frictional engagement elements, a rotational speed control... Agent: Young & Basile, P.c.

20080220939 - Control system for electronic range selection in a dual clutch transmission: The present invention provides a system for shifting or controlling a dual clutch transmission where the transmission may operate in at least a first mode of operation and a second mode of operation. The system includes a controller and a plurality of solenoids in fluid communication with a valve assembly.... Agent: General Motors Corporation Legal Staff

20080214352 - Motor vehicle drive train and method for controlling a drive train: In a drive train of a motor vehicle comprising an internal combustion engine, at least one electrical machine which can be operated at least as a motor or as a generator, and a stepped automated manual transmission and at least one control device for controlling the internal combustion engine, the... Agent: Klaus J. Bach

20080214353 - Hydraulic system for controlling a belt-driven conical-pulley transmission: A hydraulic system for controlling a belt-driven conical-pulley transmission of a motor vehicle, wherein the transmission has a variably adjustable transmission ratio. The hydraulic system includes a first valve arrangement to control a contact pressure in the belt-driven conical-pulley transmission, a second valve arrangement to control the transmission ratio of... Agent: Alfred J Mangels

20080214354 - System and method of controlling a torque converter lockup clutch: A torque converter lockup clutch control system is provided for an associated automatic transmission. The system includes a torque converter having an impeller operatively coupled to an associated internal combustion engine and a turbine operatively coupled to an input shaft of the associated automatic transmission. A lockup clutch is disposed... Agent: Fay Sharpe LLP

20080214355 - Electrohydraulic torque transfer device: A power transmission device includes an actuator having an electric motor driving a pump to supply pressurized fluid to a piston acting on a friction clutch to transfer torque between rotatable input and output members. In one instance, a valve between the pump outlet and the piston selectively traps pressurized... Agent: Harness, Dickey & Pierce, P.L.C

20080214356 - Speed change system for working vehicle: A speed change system for a working vehicle comprises a main transmission, a sub transmission and a preliminary transmission. The main transmission receives a prime mover power outputted from a prime mover, and has plural main speed stages, one of which is selected to transmit the prime mover power. The... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.