Engine Speed Regulator Patents (Class 123/319)
  • Patent number: 9982633
    Abstract: A gas internal combustion engine, having a gas mixer, an intake section and an engine to which a fuel mixture having a charging mixture is fed. The engine is operated in the gas mode with gas as the fuel in the charging mixture. By an input mixture portion, from an earlier mixture state, of a gas/air mixture, an output mixture portion, from a later mixture state, of the gas/air mixture is determined by an intake section model. The output mixture portion is determined at an engine feed, the input mixture portion is determined over a number of intermediate states of the mixture portion in a number of assigned volumes of the intake section. The intake mixture portion of a gas/air mixture is determined at the gas mixer, and an air stream and/or gas stream is set at the gas mixer in accordance with the input mixture portion.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: May 29, 2018
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Andreas Flohr, Andreas Geller
  • Patent number: 9915194
    Abstract: Methods and systems are provided for operating an engine with variable displacement engine (VDE) operation coupled to a twin scroll turbocharger. One method comprises directing exhaust from a first outer cylinder and a first inner cylinder of four cylinders to a first scroll of the twin scroll turbocharger, directing exhaust from a second outer cylinder and a second inner cylinder of the four cylinders to a second scroll of the twin scroll turbocharger, and during a first condition, firing all four cylinders with uneven firing.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: March 13, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Brad Alan Boyer, Gregory Patrick McConville, Kim Hwe Ku, James Douglas Ervin
  • Patent number: 9863338
    Abstract: When a difference between a target intake air amount during the reduced-cylinder operation, which is greater than a target intake air amount during the all-cylinder operation in a normal state, and an actual intake air amount is greater than an allowable deficient intake air amount, a preparatory control for increasing the actual intake air amount and shifting an ignition timing toward a retard side with respect to an ignition timing during the all-cylinder operation in the normal state. Then, at a time when the difference between the target intake air amount and the actual intake air amount becomes equal to or less than the allowable deficient intake air amount, the reduced-cylinder operation is started, wherein the allowable deficient intake air amount is set to a larger value when a current speed stage is a high speed stage than when it is a low speed stage.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 9, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masayoshi Higashio, Yukio Haizaki
  • Patent number: 9777655
    Abstract: A method for setting an engine speed of an internal combustion engine in a marine propulsion device of a marine propulsion system to an engine speed setpoint includes determining the engine speed setpoint based on an operator demand and predicting a position of a throttle valve that is needed to achieve the engine speed setpoint. The method also includes determining a feed forward signal that will move the throttle valve to the predicted position, and after moving the throttle valve to the predicted position, adjusting the engine speed with a feedback controller so as to obtain the engine speed setpoint. An operating state of the marine propulsion system is also determined. Depending on the operating state, the method may include determining limits on an authority of the feedback controller to adjust the engine speed and/or determining whether the operator demand should be modified prior to determining the engine speed setpoint.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: October 3, 2017
    Assignee: Brunswick Corporation
    Inventors: Jason S. Arbuckle, Steven J. Andrasko, Andrew J. Przybyl, William P. O'Brien, Kenneth G. Gable, David M. Van Buren, Gene A. Smedema
  • Patent number: 9752471
    Abstract: A compression-release brake system is provided that includes a lost motion exhaust rocker assembly, an actuation piston, and a reset device. The actuation piston includes an actuation piston body that is slidably received by the rocker arm to define a piston cavity in the rocker arm and is movable between piston retracted and extended positions. The actuation piston is configured to be operatively associated with the exhaust valve to permit unseating of the exhaust valve from the seated state. An actuation piston check valve is configured to move between closed and open positions to permit hydraulic fluid flow through an actuation piston communication port to the piston cavity. The reset device includes a reset check valve and a reset pressure control spring for applying a biasing force to the reset check valve to urge the reset check valve toward an open position.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 5, 2017
    Assignee: Pacbrake Company
    Inventors: Vincent Meneely, Robert Price
  • Patent number: 9562448
    Abstract: A compression-release brake system for effectuating a compression-release engine braking operation in connection with an internal combustion engine. The system includes a lost motion exhaust rocker assembly including a rocker arm, an actuation piston slidably received by the rocker arm to define part of a piston cavity in the rocker arm and movable between a piston retracted position and a piston extended position, the actuation piston configured to operatively associate with the exhaust valve to permit unseating of the exhaust valve from the seated state, and a reset device received by the rocker arm and operatively associated with the actuation piston to return the exhaust valve to the seated state by the end of the expansion stroke in the brake-on mode.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: February 7, 2017
    Assignee: Pacbrake Company
    Inventors: Vincent Meneely, Robert Price
  • Patent number: 9493106
    Abstract: An image displaying speedometer includes an input section configured to receive a movement input and a decision input among various inputs, and a display section that output information. The display section outputs a speed scale and either one of a first index which indicates a part of the speed scale and a second index which indicates a part of the speed scale as information, the first index being different from the second index. The display section outputs the first index so as to indicate the part of the speed scale in accordance with the movement input received by the input section, and outputs the second index, instead of the first index, so as to indicate the part of the speed scale which has been indicated by the first index after the input section receives the decision input.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: November 15, 2016
    Assignee: Yazaki Corporation
    Inventor: Yukio Oishi
  • Patent number: 9488140
    Abstract: Disclosed is an intake air volume measuring device for an internal combustion engine. The device includes an air flow meter located in an intake air path of the internal combustion engine, to measure the volume of intake air into the combustion chamber of the internal combustion engine based on an output signal of the air flow meter. The output signal of the air flow meter (AFM signal) is sampled in synchronism with the crank angle of the internal combustion engine. With this angle-synchronous processing, the device is capable of obtaining AFM data at equal intervals within a cycle of intake air pulsation, thereby eliminating adverse effects of the intake air pulsation. The device is hence capable of reducing variations in AFM data averages and calculating average flow rates of the intake air with high precision.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 8, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiro Wakao, Masahiro Mori, Takeshi Sano, Hiroshi Yamamoto
  • Patent number: 9429051
    Abstract: A compression-release brake system comprises an exhaust rocker arm, an actuation piston slidable in a piston bore in the exhaust rocker arm so as to press an exhaust valve, a supply conduit formed within the exhaust rocker arm, and an exhaust valve reset device mounted to the exhaust rocker arm. The actuation piston defines an actuation piston cavity within the actuation piston bore between the piston bore and the actuation piston. The exhaust valve reset device includes a reset check valve disposed between the supply conduit and the actuation piston cavity to hydraulically lock the actuation piston cavity by closing the reset check valve when a pressure of the hydraulic fluid within the actuation piston cavity exceeds the pressure of the hydraulic fluid in the supply conduit. The reset check valve is biased closed by the pressure of the hydraulic fluid within the actuation piston cavity during the brake-on mode.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 30, 2016
    Assignee: Pacbrake Company
    Inventors: Vincent Meneely, Robert Price
  • Patent number: 9422890
    Abstract: In a carburetor, three downstream body passages in the body communicate with three valve passages in the valve element, and the valve element rotates between a closed position and an opened position. The carburetor is a one-bore type carburetor in which the body passages and the valve passages are respectively partitioned with the body partitions and the valve partitions. When rotating the valve element from the closed position to the opened position, the second body passage and the second valve passage for mixture start to communicate in advance than the first and third body passages and the first and third valve passages for air.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: August 23, 2016
    Assignees: YAMABIKO CORPORATION, ZAMA JAPAN CO., LTD.
    Inventors: Takahiro Yamazaki, Hisato Onodera, Takumi Nonaka, Kazuyuki Tateyanagi
  • Patent number: 9260116
    Abstract: A target drive force is computed according to an accelerator pedal opening. A target input rotation speed lower limit basic value to an automatic transmission is computed based on a vehicle speed and a shift range of the automatic transmission. A target drive force lower limit correction value is computed based on the target input rotation speed lower limit basic value. The target drive force is corrected based on the target drive force lower limit correction value. A target input torque of the automatic transmission is computed based on the target drive force after correction. An input torque to the automatic transmission is controlled to the target input torque. By this control, an arbitrary drive force characteristic can be obtained in a PTD control.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 16, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takahiro Yoshino, Masahiro Iriyama
  • Patent number: 9115670
    Abstract: The opening of a solenoid valve is automatically adjusted after an engine is started and before actual work is performed for an appropriate air-fuel ratio, whereby it is possible to attain a good and stable driving of the engine without any delay even for an abrupt change in load. After the engine is started, when a rotation speed enters a “fuel flow rate adjusting rotation speed range” in which a definite load is applied to the engine in a working rotation speed range of the engine in which a throttle valve is opened to a definite opening, a detected rotation speed is fed back to a target rotation speed, and the opening of the solenoid valve is controlled to adjust a fuel flow rate, so that the combustion state in the engine is optimized at the valve opening so determined.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 25, 2015
    Assignees: IIDA DENKI KOGYO CO., LTD., ZAMA JAPAN CO., LTD.
    Inventors: Ryouhei Yamashita, Akira Yamazaki, Tamotsu Saitou, Hideki Watanabe, Takumi Nonaka
  • Publication number: 20150107552
    Abstract: Provided is an engine control apparatus for construction machinery, including: an engine control dial manually operated by a user and configured to generate a control signal for increasing and decreasing revolutions per minute (rpm) of an engine by a predetermined unit; a jog shuttle including a jog switch, which is manually rotated and pressed by the user, and configured to generate a selection signal for selecting or changing functions corresponding to various operation modes; an instrument panel configured to display operation information of various elements which the user requires while driving the construction machinery; an engine controller configured to control the engine to respond to the control signal generated by the engine control dial; and an equipment controller configured to receive either the control signal generated by the engine control dial or the control signal corresponding to the rotation and the press of the jog switch, and provide the engine controller with a value of an rpm of the eng
    Type: Application
    Filed: January 22, 2013
    Publication date: April 23, 2015
    Inventors: Hongcheol Yun, Duckwoo Park
  • Patent number: 9002590
    Abstract: A first target engine speed N1 and a high-speed control area F1 are set according to a command value commanded by a command unit. A second target engine speed N2 and a high-speed control area F2 defined on a low-speed side are set according to the first target engine speed N1. A pump displacement D and an engine torque T of a variable displacement hydraulic pump are detected so that a target engine speed N corresponding to each of the detected pump displacement and engine torque is detected according to a preset relationship between a the pump displacement D and the target engine speed N and a preset relationship between the engine torque T and the target engine speed N during an engine control at the high-speed control area F2. The drive of the engine is controlled so that the engine is driven at the target engine speed N.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: April 7, 2015
    Assignee: Komatsu, Ltd.
    Inventors: Teruo Akiyama, Hisashi Asada, Takeshi Ooi
  • Patent number: 8996259
    Abstract: An engine control device for a forklift that suppresses an increase in fuel consumption amount and noise by limiting an engine rotation speed when the forklift is driven without the need to increase the engine speed according to the accelerator operation even when the accelerator is depressed hard. Determining means in a controller determines whether all of the following conditions are satisfied: a neutral position of the traveling direction instructing means; a lift raising switch and first, second and third attachment switches are turned off. When all of the above conditions are satisfied, it is determined whether the forklift is driven in any of a plurality of states. An engine control means generates and outputs a control command to obtain the engine speed based on the accelerator pedal depression with the upper limit value of the engine speed set as an upper limit value of the engine speed.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 31, 2015
    Assignee: Komatsu Ltd.
    Inventors: Shinji Kaneko, Yoshitaka Onodera, Jun Hashimoto, Hideyuki Hiraiwa, Kazunori Nishimura
  • Publication number: 20150000633
    Abstract: An engine lubrication and speed control method is provided. The four-cycle engine has a engine block having a cylindrical bore and an enclosed oil reservoir formed therein. A vertical or horizontal crankshaft is rotatably mounted in the engine block for rotation about a crankshaft axis. An oil pump, which is driven by the camshaft connected with a cam gear or driven by the crank shaft connecting with the crank gear, inhales the oil from the oil reservoir to splash lubricate into the cylinder bore and valve chamber. A speed control governor is provided on the wall of the cylinder block. The engine is provided with a cylinder head assembly defining a compact combustion chamber having a pair of overhead intake and exhaust ports and cooperating intake and exhaust valves. A commonality of parts between the horizontal and the vertical engine is highly achieved.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventor: Katsumi KURIHARA
  • Publication number: 20140366838
    Abstract: Output performance of the engine may be maximized by a configuration in which air is supplied so as to maximize volumetric efficiency of the respective cylinders in a multi-cylinder engine including a plurality of cylinders.
    Type: Application
    Filed: November 8, 2013
    Publication date: December 18, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Woo Tae Kim, Chun Woo Lee, In Gee Suh, Joon Won Lim, II Joong Hwang
  • Publication number: 20140318495
    Abstract: A speed-determining system in an internal combustion engine is disclosed. The internal combustion engine includes a crankshaft, a camshaft, and an engine control module (ECM). The system includes a first gear that rotates with the crankshaft and a second gear attached to the camshaft. At least one idler gear is operatively meshed with the first gear and the second gear. A fuel pump gear, meshed with the idler gear, is driven proportionally to the first gear and the second gear. The fuel pump gear includes a transversal face, a circumferential lip portion, and a number of notches along the circumferential lip portion. A proximity sensor, in communication with the ECM, is spaced from the second gear. A rotation of the fuel pump gear moves the notches relative to the proximity sensor, triggering the proximity sensor to register movement of the fuel pump gear and calculate at least a camshaft speed.
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Inventor: YI WEI CHONG
  • Patent number: 8862348
    Abstract: A method is described for operating a vehicle fitted with a continuously variable transmission (CVT) and having a lever for varying the transmission ratio of the CVT to permit the vehicle operator to vary the vehicle wheel speed. In the invention, the transmission ratio of the CVT is limited to a value dependent upon at least one of the prevailing engine speed and the rate of change of the engine speed.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 14, 2014
    Assignee: CNH Industrial America LLC
    Inventors: Riccardo Morselli, Massimo Baroni, Francesco Roli
  • Publication number: 20140283783
    Abstract: A crankshaft includes a plurality of crankpins. The crankpins are defined on the crankshaft and are longitudinally spaced apart from each other along a rotational axis. Each of the crankpins is configured to be operatively connected to a piston of an engine including a plurality of cylinders. The engine is configured to deactivate one of the cylinders. At least two of the crankpins are substantially aligned with each other along a pin axis. At least one of the crankpins is rotationally offset from the pin axis in a rotational direction of the crankshaft such that the engine has an even firing order even when one of the cylinders is deactivated.
    Type: Application
    Filed: March 21, 2013
    Publication date: September 25, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan W. Hayman, Robert S. McAlpine
  • Publication number: 20140261306
    Abstract: A preload torque value generating unit (22m) generates a preload torque value (Tpm) as a function of the acceleration (am) of a main motor (6m), the preload torque value (Tpm) being a torque value that is appended in advance to a torque command value (Tm) so that the direction of force applied to the main motor (6m) and the direction of force applied to a sub motor (6s) will become opposite to each other. A preload torque value generating unit (22s) generates a preload torque value (Tps) as a function of the acceleration (as) of the sub motor (6s), the preload torque value (Tps) being a torque value that is appended in advance to a torque command value (Ts) so that the direction of force applied to the main motor (6m) and the direction of force applied to the sub motor (6s) will become opposite to each other.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: FANUC CORPORATION
    Inventor: Kazoumi Maeda
  • Publication number: 20140261307
    Abstract: In an engine intake control apparatus, a cover is made of synthetic resin, a motor support plate is made of metal, a positioning boss is integrally formed on the cover, a first positioning hole arranged on a motor support plate is fitted on an outer peripheral surface of the positioning boss, and the positioning boss is positioned and fitted with a throttle valve body each other. With such an engine intake control apparatus, it is possible to perform with high accuracy the mutual positioning between the three components, i.e. the motor support plate, the cover and the throttle valve body, and it is possible to effectively improve the opening and closing accuracy for the opening and closing of the throttle valve by the motor.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: KEIHIN CORPORATION
    Inventors: Yoshikuni Shishido, Masako Hagiya, Yu Kumagai, Yasushi Ono
  • Publication number: 20140251265
    Abstract: In various embodiments, an engine crankshaft is disclosed. The engine crankshaft comprises a rear bearing journal. The rear bearing journal has an output end. The rear bearing journal defines a substantially cylindrical cavity extending from the output end into the rear bearing journal. The engine crankshaft may further comprise at least one torque sensor operatively coupled to the rear bearing journal. The at least one torque sensor is configured to generate a torque signal corresponding to a torque exerted on the rear bearing journal. The torque exerted on the rear bearing journal is indicative of a torque output of an engine.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: Teledyne Instruments, Inc. d/b/a Teledyne Test Services
    Inventor: Teledyne Instruments, Inc. d/b/a TeledyneTest Services
  • Publication number: 20140238343
    Abstract: A choke system for an internal combustion engine includes a carburetor having an air intake, a choke valve disposed in the air intake, and a choke lever coupled to the choke valve, wherein the choke valve is movable between a closed position and an open position, a mechanical linkage coupled to the choke lever, and a solenoid attached to the carburetor and coupled to the mechanical linkage so activation of the solenoid moves the choke valve, wherein the solenoid is activated in response to activation of a starter system of an internal combustion engine, thereby moving the choke valve via the mechanical linkage to the closed position.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: Briggs & Stratton Corporation
    Inventors: Casey E. Groh, Adam J. Hellman, Timothy J. Kwiatkowski, Andrew J. Perez, Jeff J. Steenbergen, Michael R. Visuri
  • Publication number: 20140230780
    Abstract: Systems and methods are described for on-line, real-time estimation of a residual mass in an engine cylinder during HCCI combustion. The residual mass is estimated based on an estimated residual mass for a previous combustion cycle. A value of a first performance variable for the first combustion cycle is determined based only on engine data measured by one or more sensors. A value of a second performance is estimated based at least in part on the estimated residual mass for the first combustion cycle. An adaptive scaling factor is determining for the first combustion cycle based on the determined value of the first performance variable and the estimated value of the second performance variable. An adjusted residual mass for the first combustion cycle is then determined based on the estimated residual mass for the first combustion cycle and the adaptive scaling factor for the first combustion cycle.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 21, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Jacob Larimore, Li Jiang, Erik Hellstrom, Shyam Jade, Anna Stefanopoulou, Julien Vanier
  • Publication number: 20140209060
    Abstract: An air cleaner positioned above a cylinder head is connected to an intake port of the cylinder head through a connecting tube, a throttle device, and an insulator. An insulator attachment surface is formed in a rear-side wall of a cylinder head such that the insulator attachment surface is inclined to extend in a forward direction while extending upwardly. An insulator is formed in such an arc shape in a side view wherein a flow direction of air flowing inside the insulator is directed more in a forward direction as the air approaches the cylinder head. A throttle device having an intake passage thereof directed in a vertical direction is connected to the insulator. A connecting tube is formed to curve in such a shape that the connecting tube has its upstream end opened in a forward direction and is rounded outwardly in an obliquely rearward direction.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 31, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshinobu OZAKI, Ryoji IMAI
  • Publication number: 20140202421
    Abstract: According to one embodiment, an apparatus for controlling operation of an internal combustion engine includes a conditions module that is configured to determine an out-of-gear condition of the internal combustion engine. The apparatus also includes a permission module that is configured to allow a speed of the internal combustion engine to exceed a maximum engine speed limit if the determined out-of-gear condition meets a threshold, and prevent the speed of the internal combustion engine from exceeding the maximum engine speed limit if the determined out-of-gear condition does not meet the threshold.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Applicant: CUMMINS IP, INC.
    Inventors: Daniel R. Dempsey, Jonathan A. Dickson, Craig M. Calmer
  • Patent number: 8788173
    Abstract: Embodiments of the invention are used to provide a Fuel Saver Speed Control (FSSC) system that facilitates vehicle speed control while maximizing fuel economy. For instance, when the vehicle traverses an uphill section of the road, the Fuel Saver Speed Control reduces the vehicle's fuel consumption by controllably reducing engine power output within the boundaries of activated FSSC settings.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: July 22, 2014
    Inventor: Robert Horton Transou, Jr.
  • Publication number: 20140144407
    Abstract: A throttle body having an integrated sector gear which includes a sector gear component, a bushing integrally formed with the sector gear component such that the bushing and sector gear component are a single part, and an insert, where the bushing and the sector gear formed around the insert. The insert includes a first arm and a second arm, and the insert is configurable to be formed with the sector gear and the bushing to be suitable for use with one or more packaging requirements of the throttle body.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 29, 2014
    Applicant: Continental Automotive Systems, Inc.
    Inventors: Mohammed Rizwan Khan, Don Taylor
  • Publication number: 20140123958
    Abstract: A piston compound internal combustion engine is disclosed with an expander piston deactivation feature. A piston internal combustion engine is compounded with a secondary expander piston, where the expander piston extracts energy from the exhaust gases being expelled from the primary power pistons. The secondary expander piston can be deactivated and immobilized, or its stroke can be reduced, under low load conditions in order to reduce parasitic losses and over-expansion. Two mechanizations are disclosed for the secondary expander piston's coupling with the power pistons and crankshaft. Control strategies for activation and deactivation of the secondary expander piston are also disclosed.
    Type: Application
    Filed: October 9, 2013
    Publication date: May 8, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Russell P. Durrett, Paul M. Najt, Peter Andruskiewicz
  • Publication number: 20140123938
    Abstract: A throttle control system includes a target pressure module, a torque determination module, and a target opening module. The target pressure module determines an induction noise value based on an engine operating parameter and determines a target pressure downstream of a throttle valve of an engine based on a pressure at an inlet of the throttle valve and the induction noise value. The torque determination module determines a torque request for the engine based on the target pressure. The target opening module determines a target opening for the throttle valve based on the torque request and selectively adjusts opening of the throttle valve based on the target opening.
    Type: Application
    Filed: February 1, 2013
    Publication date: May 8, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Kaiser
  • Publication number: 20140116376
    Abstract: An estimation device for a cylinder intake air amount in an internal combustion engine can estimate a cylinder intake air amount to a sufficient accuracy for suitable engine control, in either of steady state operation and transient operation with a small number of adaptation constants and a small amount of calculation load, without requiring a huge memory capacity. The relation between an opening degree and an effective opening area of a throttle valve has been learned, while calculating the cylinder intake air amount in an S/D method from a volumetric efficiency correction factor map adapted by valve timing at the time of steady state operation, and in a period from a transient change until an exhaust manifold temperature is converged, an intake air amount is calculated based on the relation thus learned. The cylinder intake air amount is calculated based on a physical model of an intake system response delay.
    Type: Application
    Filed: March 26, 2013
    Publication date: May 1, 2014
    Inventor: Hideki HAGARI
  • Publication number: 20140102410
    Abstract: An air intake device offers simplified construction, reduced size, lowered cost, etc., while facilitating disposing of throttle body and driving part in intake air passage, allowing throttle body to be reliably held, and eliminating possible occurrence of intake air leakage, etc., thus positively securing the performance. The air intake device includes an actuator and an intake air manifold made of resin. In actuator, there are provided a throttle body, a throttle valve, a motor for opening/closing throttle valve, and a power transmission mechanism. Throttle valve and motor are positioned and held on one side of a support member, and power transmission mechanism is on the other side. In intake air manifold, a housing chamber is provided. When a fixing part of support member is jointed to a part to be fixed of intake air manifold, throttle body and motor are accommodated in a predetermined position in housing chamber.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 17, 2014
    Applicant: MIKUNI CORPORATION
    Inventors: Etsuo Nishimura, Yasuhiro Tochigi, Hiroyuki Yanazawa
  • Publication number: 20140102409
    Abstract: The invention relates to a method for starting an internal combustion engine (1), particularly a stationary gas engine, which is driven by at least one starter motor (2). The starting process is interrupted once the starter motor (2) has been started if the angular acceleration (a) of the internal combustion engine (1) remains below a predefinable acceleration value and/or if, within a predefinable first time period (tA), the actual rotational speed (n) remains below a predefinable first rotational speed threshold value (nA) and/or if, within a predefinable second time period, the average rotational speed of the internal combustion engine (1) remains below a predefinable second rotational speed threshold value.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: GE Jenbacher GmbH & Co OHG
    Inventors: Alfred RANGGER, Lukas ZAHNER
  • Patent number: 8649927
    Abstract: A method of controlling operation of an energy system for a hybrid vehicle, the energy system including a combustion engine controlled to work at a desired engine rotational speed; an electric generator/motor driven by the combustion engine to output a generated electric power; a power consuming device driven by the combustion engine and drivable by the electric generator/motor; and an energy storage device connected to the electric generator/motor and arranged to receive the generated electric power output by the electric generator/motor. The method includes the steps of: monitoring an actual engine rotational speed; and if the actual engine rotational speed decreases from the desired engine rotational speed, controlling the electric generator/motor to output a gradually reducing generated electric power. Hereby, the combustion engine can be allowed to remain in an operating range where it works efficiently, while at the same time fulfilling the need for power of the power consuming device.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: February 11, 2014
    Assignee: El-Forest AB
    Inventor: Roger Gustavsson
  • Publication number: 20140034009
    Abstract: A control device for an air supply system of a vehicle, which has a transmission device and an internal combustion engine for driving the vehicle in load phases, is configured to receive measured pressure signals and to output control signals to initiate and terminate delivery phases of a compressor that is or can be connected to the internal combustion engine. The control device picks up state signals relating to a current state of the internal combustion engine and/or the transmission device and initiates a delivery phase as a function of the state signals in load phases of the internal combustion engine.
    Type: Application
    Filed: February 21, 2012
    Publication date: February 6, 2014
    Applicant: WABCO GmbH
    Inventors: Stefan Brinkmann, Konrad Feyerabend
  • Patent number: 8639418
    Abstract: 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 further includes basing a first threshold speed on a speed of the power source produced by directing power into the power source and increasing the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Robert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
  • Publication number: 20130333662
    Abstract: Provided is a control apparatus for an internal combustion engine, which can favorably suppress an occurrence of abnormal combustion regardless of its operational conditions. An occurrence probability of abnormal combustion of the internal combustion engine (10) is obtained on the basis of a fuel dilution index. An expected value I of the number of occurrences of abnormal combustion per a predetermined time period is calculated on the basis of the occurrence probability of abnormal combustion. The upper limit value of a torque generated by the internal combustion engine (10) is limited low so that the expected value I does not exceed a predetermined tolerable value.
    Type: Application
    Filed: February 18, 2011
    Publication date: December 19, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshihiro Okada
  • Publication number: 20130319369
    Abstract: The present disclosure relates to a system for managing engine output that includes a machine manager module and a combustion module. In one embodiment, the combustion module includes a slow response pathway and a fast response pathway. The slow response pathway includes managing air and fuel actuators and the fast response pathway includes managing spark timing. According to one embodiment, managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control and involves sacrificing engine efficiency for engine responsiveness. Further, the fast response pathway may be selectively enabled based upon an optimization index.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 5, 2013
    Inventors: David J. Stroh, Zach Schwab, Govindarajan Kothandaraman, Robert J. Thomas, Richard S. Fox, Craig M. Calmer, Rohit Zope
  • Publication number: 20130318966
    Abstract: An engine system and method for operating an engine including a central throttle and a port throttle is disclosed. In one example, the central throttle and port throttle are adjusted to improve air flow distribution to engine cylinders. The system and method may be particularly beneficial for turbocharged engines.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 5, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Thomas G. Leone, Joseph Norman Ulrey
  • Patent number: 8573180
    Abstract: A method for determining a cylinder charge of an internal-combustion engine having valves with a variable valve gear, may include determining a maximum intake valve lift, calculating a standardized cylinder charge relative to at least one of a defined intake spread of an intake valve opening phase and a defined exhaust spread of an exhaust valve opening phase, as a function of the maximum intake valve lift, determining an overlap value, which characterizes an actual overlap of the intake valve opening phase and the exhaust valve opening phase, and determining a corrected cylinder charge based on the standardized cylinder charge and the overlap value.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 5, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Motor Europe Technical Center GmbH
    Inventors: Patrizio Agostinelli, Juergen Werner
  • Publication number: 20130284147
    Abstract: A helical torsion return spring and a throttle body assembly for urging a throttle plate of a throttle body assembly to a default position when a throttle motor of the throttle body assembly is disabled. The return spring includes a middle portion, a first end portion, a second end portion, a first spring leg, and a second spring leg. The throttle body assembly includes a throttle shaft, a first bushing, a second bushing, and the spring defined above. A first end portion center axis defined by the first end portion and a second end portion center axis defined by the second end portion are offset from a middle portion center axis defined by the middle portion.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventor: FRANK A. NICHOLAS
  • Publication number: 20130276748
    Abstract: In order to control an adjusting device of a motor vehicle, in particular a window lift, having a motor-driven adjusting part, the speed of the drive is controlled to a desired speed value during normal operation at least in a sub-range of an adjustment travel and the driving force is controlled to a desired force value in the event of difficult motion for a first time period. After the first time period has ended, the adjusting part is reversed or the drive is at least stopped in the event of pinching. If the difficult motion is not an event of pinching, the speed of the drive is controlled anew to the desired speed value, wherein the driving force is first reduced to a first force and is increased to the desired force value within a second time period and/or a value realized during normal operation is used as a desired force value for the driving force.
    Type: Application
    Filed: June 24, 2013
    Publication date: October 24, 2013
    Inventors: ALEX KROMER, THOMAS KLAUCK
  • Publication number: 20130276759
    Abstract: A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different compression ratios, the at least one cylinder of a first group having a higher compression ratio and the at least one cylinder of a second group having a lower compression ratio and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 24, 2013
    Applicant: Ford Global Technologies, LLC
    Inventors: Moritz Klaus Springer, Helmut Hans Ruhland, Albert Breuer, Thomas Lorenz, Jan Linsel
  • Publication number: 20130276747
    Abstract: A system is provided for an internal combustion engine comprising, at least two cylinders wherein the at least two cylinders form at least two groups, wherein each group comprises at least one cylinder, the at least one cylinder of at least one group being formed as a cylinder which can be activated in a load-dependent manner and which is deactivated if a predefined load is undershot. The at least two groups are characterized by different cylinder volumes, the at least one cylinder of a first group having a lesser cylinder volume and the at least one cylinder of a second group having a greater cylinder volume; and the at least one cylinder of the second group comprises an activatable and deactivatable cylinder. Use of the first cylinder group, and deactivation of the second cylinder group during partial loads increases engine efficiency and fuel economy.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 24, 2013
    Applicant: Ford Global Technologies, LLC
    Inventors: Moritz Klaus Springer, Helmut Hans Ruhland, Albert Breuer, Thomas Lorenz, Jan Linsel
  • Publication number: 20130247868
    Abstract: An air-intake control apparatus of an internal combustion engine formed by attaching a flange portion provided to an end portion of a drive motor to a cylindrical hole portion. A throttle body has at least one positioning projection (or recess) provided to an inner wall of the cylindrical hole portion. The drive motor complementarily has at least one positioning recess (or projection) provided to the flange portion at a position corresponding to the positioning projection (or recess). The drive motor is attached to the cylindrical hole portion while the positioning recess (or projection) abuts on the positioning projection (or recess) in such a manner that a center distance between a motor shaft and a throttle shaft takes a predetermined value. Hence, not only attachment workability but also attachment accuracy of the drive motor can be enhanced. The air-intake control device therefore has higher product reliability.
    Type: Application
    Filed: August 13, 2012
    Publication date: September 26, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhisa KURITA, Chiaki SUGANO, Teruhiko MORIGUCHI
  • Publication number: 20130239926
    Abstract: A drive-train of a motor vehicle, with a drive aggregate comprising at least an internal combustion engine (1), a transmission (3) connected between the internal combustion engine (1) and the drive output (2), and a starting clutch (4) connected between the internal combustion engine (1) and the transmission (3). The drive aggregate also has a shiftable by-pass transmission (5) arranged parallel to the starting clutch (4) which has at least one gear step (6), and an auxiliary clutch (7). In order to reduce the speed of the internal combustion engine (1), during overrun operation of the drive-train, the auxiliary clutch (7) is engaged and the starting clutch (4) is at least partially disengaged.
    Type: Application
    Filed: November 7, 2011
    Publication date: September 19, 2013
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Johannes Glueckler
  • Publication number: 20130228152
    Abstract: An air supply device (1) of a stratified scavenging two-cycle engine includes: a mixture passage (40) that penetrates a carburetor (2) and an insulator (3), the mixture passage being provided by a carburetor-side mixture passage (8) and an insulator-side mixture passage (21); a air passage (41) that is provided by a carburetor-side air passage (9) and an insulator-side air passage (22); a throttle valve (13) provided in a single bore (4) of the carburetor (2), the throttle valve(13) being provided by a butterfly valve that rotates in conjunction with a throttle operation; and a flow rate regulator (28) provided inside the air passage (41), the flow-rate regulator (28) bulging inward in the air passage (41). At least a part of a periphery of a valve body (17) of the throttle valve is close to the flow-rate regulator (28) until the valve body (17) is rotated from an initial position corresponding to an idling speed at a predetermined rotation angle.
    Type: Application
    Filed: November 8, 2010
    Publication date: September 5, 2013
    Applicant: HUSQVARNA ZENOAH CO., LTD.
    Inventors: Ryou Ono, Takashi Ohniwa
  • Publication number: 20130199464
    Abstract: Drive device having an internal combustion engine with a crankshaft; an electric machine with a rotor which rotates on a rotor shaft; a gearbox device; wherein the rotational axis of the crankshaft and the rotational axis of the rotor are arranged one next to the other in parallel; wherein the electric machine and the internal combustion engine are connected to one another by means of a gearbox element, wherein the electric machine and the internal combustion engine are positioned outside the gearbox device; the electric machine and the internal combustion engine have a common output shaft which is connected to the gearbox element and which is connected or can be connected to an input shaft of the gearbox device, wherein the common output shaft is positioned upstream of, or together with, the input shaft in the direction of the drive power flux from the internal combustion engine to the gearbox device, and wherein a hydrodynamic clutch is arranged between the rotor shaft of the electric machine and the common
    Type: Application
    Filed: September 21, 2011
    Publication date: August 8, 2013
    Inventor: Ulrich Burr
  • Publication number: 20130192560
    Abstract: A safety device for controlling an engine includes a first and a second sensor of an environmental parameter, two channels for processing data measured by the sensors, each of the channels each including a command module and a power supply. The device includes at least two relays. The first relay is capable of receiving a first command coming from a supply and delivering, in the absence of the first command, data from the first sensor to the second command module. The second relay is capable of receiving a second command coming from the supply and delivering, in the absence of the second command, data from the second sensor to the first command module. The supply of the active channel sends a command to the relay associated with it, the relay sending data from the sensor to the active channel.
    Type: Application
    Filed: January 29, 2013
    Publication date: August 1, 2013
    Applicant: SNECMA
    Inventor: Florent Nobelen