Interrelated power delivery controls, including engine control inventions 08/06

20060194670 - Method of providing electric motor torque reserve in a hybrid electric vehicle: A method of operating a vehicle powertrain system comprising an electric motor and transmission where the electric motor is operably and selectively coupled to the transmission and adapted to provide an output torque contribution thereto, and the electric motor has a predetermined maximum motor output torque and a predetermined minimum...

20060194671 - Pulley thrust control device for continuously variable transmission: A control device for a belt continuously variable transmission with a primary pulley, a secondary pulley and a V-belt, includes an oil pressure control unit which applies a thrust to each of the primary pulley and the secondary pulley, and a controller. The controller judges whether or not a pulley...

20060194672 - Control device and control method of gear transmission: In a control device and a control method for a gear transmission, a first flow rate computation section calculates a coolant flow rate which places importance on action for cooling friction clutches. A second flow rate computation section calculates a coolant flow rate which places importance an inhibition of drag...

20060194673 - Vehicle trajectory control system: A method for controlling an engine coupled to a transmission is described. The method is suited for a transmission having at least one gear in which an over-running clutch is present. The invention describes a method for adjusting an engine operating parameter to maintain transmission input speed at or below...

20060189436 - Hydraulic control system for automatic transmission: An automatic transmission hydraulic control apparatus includes an oil pump driven by an engine, a forward clutch arranged to be engaged by an engagement pressure from the oil pump at a start of the vehicle, a hydraulic pressure sensing section configured to sense a hydraulic pressure in the automatic transmission,...

20060183595 - Centrifugal clutch assembly with dedicated maneuvering mode: A vehicle power train system includes an engine, a transmission, and a centrifugal clutch assembly that selectively couples an engine output shaft to a transmission input shaft in response to an operator input. An operator selects a desired vehicle-operating mode by actuating a shift lever or shift switch from a...

20060183596 - Method for controlling engine and/or transmission temperature: The method of the present invention is adapted to control transmission oil temperature. According to a preferred embodiment, the engine coolant temperature may be controlled in addition to or regardless of transmission oil temperature. To maintain transmission and/or engine temperature, the present invention is preferably configured to limit the engine's...

20060183598 - Control device of internal combustion engine: When an engine is in an idle state and a drive range is selected in transmission (i.e. during idle control), an idle controlling portion of an engine ECU calculates a target power for controlling a power of the engine to keep it constant, and outputs the calculated target power to...

20060183597 - Transmission controllers: A transmission controller for a multi-ratio tractor transmission is disclosed, the controller comprising a control dial (40) which is rotatable in one direction from a central position (43) into a field working zone (42) of movement and in the other direction into a road working zone (44) of movement to...

20060183599 - Method for regulating the rotational speed of a clutch-independent power take-off: Method for regulating the rotational speed of a clutch-independent power take-off. The power take-off is driven by an engine arranged in a vehicle. The engine is connected to an automatic stagegeared transmission by way of an automated vehicle clutch. At least one control unit is provided for controlling the transmission,...

20060183600 - Braking force holding control device: Information related to a throttle opening degree, a real engine speed, etc. is transmitted from, for example, an EFI-ECU to a brake ECU. The brake ECU then derives an engine speed when no load is applied from the throttle opening degree. When the difference between the engine speed when no...

20060178244 - Method and apparatus for adaptive control of power-on skip through neutral downshifts: The present invention provides a method and apparatus for mathematically calculating an optimal transmission input torque value for the inertia phase and the torque phase of a ratio change. Engine output is then altered by an amount necessary to change the actual value of the transmission input torque to the...

20060172852 - Automated inter-axle differential locking system actuation enhancement: The present invention relates to an actuation enhancement for an automated vehicle inter-axle differential (IAD) locking system. The vehicle having an engine and a tandem drive axle. The IAD actuation enhancement locking system comprises a rotating sliding clutch and a rotating side helical gear, which are capable of an engagement...

20060172853 - Hydraulic transmission vehicle: A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller (90) of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic transmission, and calculates a value of load applied on the hydraulic...

20060172854 - Method and means for shifting a hydromechanical transmission: A method for achieving high quality shifts with one hydraulic unit near zero displacement when using dog clutches. This method includes selecting the proper displacement and vocation (whether the hydrostatic unit works as a pump or motor) of a low displacement hydraulic unit during the shift, selecting the appropriate speed...

20060172855 - Method for controlling a twin-clutch transmission: A method of controlling a twin-clutch transmission with a first partial transmission with which are associated a first engine clutch and a first group of gears, and a second partial transmission with which are associated a second engine clutch and a second group of gears, said method containing the step...

20060172856 - Hydraulic pressure control device for automatic transmission: There is provided a hydraulic pressure control device for an automatic transmission having a fail-safe mechanism to cope with an operation malfunction of electromagnetic valves. A first changeover valve that can be switched between a normal state where a drain port EX of each electromagnetic valve communicates with a predetermined...

20060172857 - Park brake and control lever interlock for ztr vehicle: A ZTR lawnmower having and first and second drive wheels and first and second control levers to control the direction and speed of rotation of the first and second drive wheels. The lawnmower further includes a park brake system operatively interconnected with at least one of the drive wheels, and...