Interrelated power delivery controls, including engine control inventions

20090270221 - Electro-hydraulic machine for hybrid drive system: A combined hybrid drive system and electro-hydraulic machine includes a hybrid drive system that is adapted to decelerate a rotatably driven mechanism, accumulate the energy resulting from such deceleration, and use the accumulated energy to subsequently accelerate the rotatably driven mechanism. An electro-hydraulic machine is operatively connected to the hybrid... Agent: Macmillan Sobanski & Todd, LLC

20090270222 - Method of controlling continuous variable transmission: A method of controlling a transmission (e.g., CVT) comprises dividing the entire range of an input torque to a transmission from an engine into a plurality of partial torque ranges; setting the maximum torque of the respective partial torque ranges as a representative torque of the respective partial torque ranges;... Agent: Edwards Angell Palmer & Dodge LLP

20090270223 - Dual stage input lever transmission downshift system: A two stage clutch and shift actuation paddle assembly provides clutch disengagement through a first range of movement of a manually operated control lever or paddle and electronic shifting of a transmission upon movement through a second range. A return spring force generator causes a lower return force to be... Agent: John R. Benefiel

20090270224 - Gear change control device, straddle-type vehicle, and gear change control method: A gear change control device actuates an actuator in response to an input of a gear change command and sets the clutch in an intermediate state between the engaged and disengaged states before a plurality of gears in the transmission are selectively engaged by dog clutches. In the intermediate state,... Agent: Jones Day

20090270225 - 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 module determines a torque limit based on one of an engine... Agent: Harness Dickey & Pierce, P.L.C

20090264249 - Method for operating a drivetrain: A method of operating a motor vehicle drivetrain having, along a power flow, an internal combustion engine, a clutch, an electric motor, a transmission and a drive output. The transmission is associated with a main and auxiliary hydraulic pumps, and an internal or an external starting element. When the engine... Agent: Davis & Bujold, P.l.l.c.

20090264248 - Power development for rapid start in full-hybrid drives with optimized traction control: A launch control system for a hybrid vehicle is described. The system includes overcharging an electrical energy storage unit of the hybrid vehicle, operating an internal combustion engine at an increased power level, and operating an electric motor at an increased power level with the overcharged electrical energy storage unit.... Agent: Crowell & Moring LLP Intellectual Property Group

20090264250 - Shift control method of automatic transmission and shift control system thereof: A shift control method of an automatic transmission may include: detecting a slope of a turbine speed in a case in which a shift is performed; quickly reducing an electric throttle opening by a jumping amount of an electric throttle opening according to the slope of a turbine speed; gradually... Agent: Morgan, Lewis & Bockius LLP (sf)

20090264251 - Machine control system with directional shift management: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes selecting a power boost map in response to the propulsion direction change request. The power boost map increases the power rating of a power source... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20090264252 - Machine control system with directional shift management: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes directing power into a power source and reducing a supply of fuel to the power source while directing power into the power source. The method... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20090264253 - Clutch control system: A clutch control system is interposed between an engine and a piece of driven equipment. The clutch control system includes a clutch assembly with input and output speed sensors for providing signals corresponding to the shaft rotational speeds of the engine and the driven equipment, respectively. A pressure sensor is... Agent: Renner Kenner Greive Bobak Taylor & Weber

20090264254 - Process for controlling a twin clutch: The invention relates to a process for controlling a twin clutch transmission with two partial drive trains with respectively a friction clutch interposed between an internal combustion engine and the partial drive train. If the transmission capacity of a friction clutch falls below the engine torque, engine intervention takes place.... Agent: Davidson, Davidson & Kappel, LLC

20090258754 - Method for accelerating a vehicle from a stop or for stopping a vehicle on a gradient: A method for starting or stopping a vehicle on a gradient. In order to protect the clutch (12) against overheating and therefore against excessive wear during the actuation of at least one brake (48) and simultaneous pressing of the accelerator pedal (44), a torque reduction in the form of a... Agent: Simpson & Simpson, PLLC

20090258755 - Power output apparatus, control method of power output apparatus, and vehicle equipped with power output apparatus: An object oil temperature is determined by adopting a gradual change process for an oil temperature of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and... Agent: Kenyon & Kenyon LLP

20090258756 - Fly-by-wire control for multi-speed planetary transmission: A fly-by-wire control for a multi-speed vehicle transmission is provided. Electronic and hydraulic components are provided, including trim valve systems that are multiplexed by logic valves. The trim valves and logic valves are self-diagnosing via a plurality of pressure switches. The control enables single and double range shifts among the... Agent: Allison Transmission, Inc.

20090258757 - Process for controlling a friction clutch: The invention relates to a process for controlling an automated friction clutch with a wear adjustment device that adjusts extended clutch stroke by a discrete magnitude through the wear of friction lining at maximum transmittable torque of the friction clutch. To guarantee safe self-adjustment, also during a long operation period... Agent: Davidson, Davidson & Kappel, LLC

20090253550 - Powertrain having a damper installed directly to engine output and method of assembling same: A hybrid powertrain includes an engine driving an engine output member, such as a crankshaft. A damper is directly connected to the engine output member, and a transmission input shaft is directly connected to the damper, for common rotation therewith. A dry damper is configured to allow the hybrid powertrain... Agent: Quinn Law Group, PLLC

20090253551 - Hydraulic clutch control mechanization with all-mode default for use in a multimode hybrid transmission: A transmission includes first, second, third, and fourth clutches, first and second shift valves, and first, second, third, and fourth trim valves. Each trim valve is operative to control fluid pressure to a respective one of the first, second, third, and fourth clutches. The transmission also includes a controller. The... Agent: Quinn Law Group, PLLC

20090253552 - Hydraulic control module for vehicle transmission and diagnostic detection method for the same: The present invention provides advanced hardware diagnostic detection for the clutch control components in a hydraulic control module of a multi-mode hybrid transmission. The detection scheme of the present invention utilizes pressure switch sensors to detect the position of each of the valves associated with the clutch control mechanization. The... Agent: Quinn Law Group, PLLC

20090253553 - System and method to reduce stall during deceleration fuel shut off: A method of controlling fuel injection in an engine of a vehicle comprising of deactivating a fuel injector of the engine during a deceleration condition of the vehicle; and reactivating the fuel injector when a rate of change of a powertrain shaft deceleration is greater than a threshold.... Agent: Alleman Hall Mccoy Russell & Tuttle, LLP