Interrelated power delivery controls, including engine control inventions 04/08

20080096717 - Hybrid drive train for vehicle: A first aspect of the present invention is concerned with a series hybrid drive train for a vehicle comprising a traction motor, an electric generator, a three-position clutch (20) and a controller. The three-position clutch allows the generator to be connected to an internal combustion engine (12) of the vehicle,... Agent: Fulbright & Jaworski L.L.P.

20080096719 - Hydraulic control device for continuously variable transmisson: A hydraulic pressure control device is provided to control hydraulic fluid pressure supplied to pulleys of a continuously variable transmission to change a gear ratio. A line pressure regulating component is controlled by a hydraulic CVT controller to regulate line pressure from a hydraulic fluid pump. A secondary pressure regulating... Agent: GlobalIPCounselors, LLP

20080096718 - Engine: An engine comprises: a V-belt type continuously variable transmission on one side of an engine case, said CVT being provided with and housing in a transmission case a drive pulley attached to one end of a crankshaft, a driven pulley attached to one end of a transmission shaft parallel to... Agent: Hogan & Hartson L.L.P.

20080096720 - Shift control device for automatic transmission: A shift control device for an automatic transmission having a plurality of frictional engaging elements adapted to be selectively engaged to perform shift control. The shift control device includes a computing unit for computing the temperature of at least one of the frictional engaging elements to be engaged in shifting,... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20080096721 - Automatic transmission control apparatus: An automatic transmission control apparatus is provided with a control scheme that focuses on the rotational speed differences of the frictional engaging elements and the distribution of torque transferred by the frictional engaging elements. When the automatic transmission is upshifted while in a power-off state, the individual torque capacity of... Agent: GlobalIPCounselors, LLP

20080096722 - Converterless transmission shift control system: A converterless, multiple-ratio transmission and ratio shift control method wherein smoothness of power-on upshifts and downshifts and power-off upshifts and downshifts is achieved by closed loop control of slip speed and friction element actuating pressure for an oncoming friction element, the data used during the closed loop control including speed... Agent: Brooks Kushman P.C./fgtl

20080090696 - System and method for controlling a vehicle: The embodiments described herein include a control system and method for a vehicle. In one embodiment, the control system is able to determine the occurrence of NVH anomalies due to gear lash and control the operation of various vehicle devices to reduce the effects of gear lash. If such NVH... Agent: Brooks Kushman P.C./fgtl

20080090697 - Target speed control strategy for power-off shifts in a hybrid electric vehicle: A method for controlling a power-off shift from a current gear to a target gear in a hybrid electric powertrain including an engine, electric motor and automatic transmission includes the steps of determining an initial target speed for the current gear, operating the motor at the initial target speed, repetitively... Agent: Macmillan, Sobanski & Todd, LLC

20080090698 - Procedure and a control apparatus for the safe division of a drive string: The invention concerns a procedure and a control apparatus for the control of a drivetrain, which comprises at least one automatic clutch, at least one automatic shifting transmission, one control apparatus for the control of the at least one automatic clutch and of at least one automatic shifting transmission as... Agent: Davis Bujold & Daniels, P.l.l.c.

20080090699 - 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... Agent: Gardere Wynne Sewell LLP Intellectual Property Section

20080090700 - Transmission shift system: A transmission shift system includes a first control path having a first electrically actuated valve system, and is configured to selectively direct hydraulic pressure to a first plurality of clutches for selecting only an output speed. A second control path independent of the first control path includes a second electrically... Agent: Taylor & Aust, P.C.

20080090701 - Clutch-manipulation assist mechanism: A clutch-manipulation assist mechanism of a vehicle clutch mechanism is capable of disconnecting power of an engine and is provided to a power transmission path which transmits the power of the engine to a rear wheel. The clutch-manipulation assist mechanism includes a push rod member which is arranged near the... Agent: Birch Stewart Kolasch & Birch

20080090702 - Parking brake system with improved control: In an electronic parking brake system and a method for controlling said system, the parking brake system control (12) shifts to a second operational state (38) when the system is in a secure state (40) and the ignition is turned off. In the second state, consumption of quiescent current is... Agent: Baker Botts L.L.P. Patent Department

20080085814 - Split serial-parallel hybrid dual-power drive system: A split serial-parallel hybrid dual-power drive system, comprised of two or more than two separation drive systems allowing independent operation to respectively drive the load, or all loads driven individually are incorporated in a common frame to drive land, surface, underwater transportation means or aircraft, industrial machines and equipment or... Agent: Rabin & Berdo, Pc

20080085815 - Method for adapting an operating mode of an automatic variable speed transmission: A method for adapting an operating mode of an automatic variable speed transmission for a vehicle having an engine (1), whose torque is transferred from a clutch (2) to an automatic variable speed transmission (3), where the target rotational speed of the variable speed transmission and a corresponding gear (x,... Agent: Davis Bujold & Daniels, P.l.l.c.

20080081729 - Method and system for controlling a hybrid vehicle: A system and method for controlling a hybrid vehicle drive has a device for detecting a charging power of a heavy-duty battery for an electric motor, a device for determining at least one fuel consumption parameter for several different transmission gear positions at the detected charging power and for determining... Agent: Crowell & Moring LLP Intellectual Property Group

20080081730 - Power train structure for hybrid vehicles: Disclosed are a power train structure that can operate hybrid vehicles in an electric mode at its startup and/or lower speed stages and a method of operation of the same.... Agent: Edwards Angell Palmer & Dodge LLP

20080081731 - Method and apparatus for differential lock control: Method and differential-lock control apparatus for differential lock control are disclosed. A control unit is arranged for communication with an engine speed sensor, a differential-lock activation control, and a differential lock. The control unit is adapted to allow for reduction of an engine speed to a desired engine speed if... Agent: Deere & Company

20080081732 - Control apparatus and control method for torque transmission mechanism: An ECU executes a program including the step of controlling the current value of an actuator that moves a sleeve by increasing the current value subsequent to complete synchronization between a rear output shaft and a front output shaft of a transfer when the oil temperature of a front differential... Agent: Oliff & Berridge, PLC

20080081735 - Control of engine torque reduction at upshift initiation: An improved control for an automatically shiftable transmission upshift, wherein the engine output torque and on-coming clutch pressure are coordinated during the shift based on an inverse dynamic model of the transmission to achieve a desired output torque trajectory. At the initiation of an upshift, the engine torque is commanded... Agent: General Motors Corporation Legal Staff

20080081733 - Mechanical soft-start system for rotating industrial equipment: A system that employs a torque converter and a shiftable mechanical lock to start up rotating industrial equipment. A gear mechanism is employed to account for rotational slippage inherent in the torque converter. The torque converter and gear mechanism are used during start-up to increase the speed of the rotating... Agent: Conocophilips Company - I.p. Legal

20080081734 - Power system: A method of operating a power system of a machine is provided. The method may include selectively supplying power from an engine to one or more other components of the machine., including, during at least some load increases on the power system, supplementing power from the engine with power from... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20080081737 - 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 power transmission device... Agent: Birch Stewart Kolasch & Birch

20080081736 - Transmission downshift control method: A method of controlling a downshift in a transmission having a main box and a compounder that has at least one gearset and at least one friction element separate from the main box includes initiating an upshift in the compounder including application of at least one friction element (e.g. a... Agent: Daimlerchrysler Intellectual Capital Corporation Cims 483-02-19

20080081738 - Method of controlling a vehicle transmission: A method of controlling a vehicle transmission during a gear change thereof, the vehicle transmission including a power shift gearbox and a range shift gearbox, the power shift gearbox having a power shift input shaft, a power shift output shaft, power shift input gearing and power shift output gearing, and... Agent: Greenlee Winner And Sullivan P C