Interrelated power delivery controls, including engine control inventions

20090275440 - Vehicle response during vehicle acceleration conditions: A vehicle control method for transitioning through transmission lash regions is described using a variety of information, such as, for example, gear ratio, clutch slippage, etc. Further, different adjustment of spark and throttle angle is used to provide a rapid torque response while still reducing effects of the lash. Finally,... Agent: Alleman Hall Mccoy Russell & Tuttle, LLP

20090275441 - Flow accumulator and clutch control system for automatic transmissions: The present invention provides a flow accumulator and a clutch control system for an automatic transmission. The flow accumulator includes a dual area piston disposed in a complementary dual diameter cylinder. The small end of the piston is pressurized by fluid from a spool valve which supplies and exhausts fluid... Agent: Vivacqua Law, PLLC

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