Starting, Warmup Patents (Class 701/113)
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Patent number: 7778767Abstract: An engine control module includes an engine starting module that communicates with an electric motor to operate an internal combustion engine including M fuel injectors and that determines whether manifold pressure is below a manifold pressure threshold. A warming module communicates with the M fuel injectors to inject fuel into N of M the fuel injectors when the manifold pressure is less than the manifold pressure threshold. N and M are integers and N is less than M.Type: GrantFiled: December 5, 2007Date of Patent: August 17, 2010Inventors: Halim G Santoso, Frank Ament
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Patent number: 7774129Abstract: The start control device for a vehicle has previously stored a plurality of coolant temperature maps in association with information on a plurality of engines in which determination rotational speeds for use in determining whether or not the each engine has achieved complete combustion are determined for several different engine coolant temperatures. The start control device for a vehicle starts cranking when detecting a signal from an engine starting switch, selects a coolant temperature map associated with engine information acquired out of the plurality of coolant temperature maps, determines a determination rotational speed NE determined for the coolant temperature at start in the selected coolant temperature map, and terminates the cranking when the engine rotational speed reaches the determination rotational speed NE.Type: GrantFiled: April 29, 2008Date of Patent: August 10, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshikata Washio
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Patent number: 7774110Abstract: A failure diagnosis apparatus for a vehicle is disclosed. The apparatus includes a diagnosis processing section for executing failure diagnosis processing on a device of the vehicle to generate a diagnosis result. The apparatus also includes a data managing section for managing data of the diagnosis result. After an execution condition is met for failure diagnosis, the diagnosis processing section outputs an execution demand to the data managing section for the failure diagnosis processing. In response to the execution demand, the data managing section outputs an execution permission to the diagnosis processing section for the failure diagnosis processing. Also, after the execution condition is met for the failure diagnosis, the diagnosis processing section starts executing the failure diagnosis processing regardless of whether the execution permission has been outputted by the data managing section. A method of failure diagnosis is also disclosed.Type: GrantFiled: October 25, 2006Date of Patent: August 10, 2010Assignee: Denso CorporationInventor: Kenichi Sago
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Publication number: 20100192879Abstract: Methods and systems for starting a vehicle engine are provided. One example method for starting a vehicle engine having a plurality of cylinders may include generating hydrogen gas and oxygen gas onboard the vehicle from water. The method may further include maintaining the hydrogen gas and oxygen gas together as a gaseous mixture. The method may further include injecting the gaseous mixture to at least one cylinder of the engine during a start.Type: ApplicationFiled: February 3, 2009Publication date: August 5, 2010Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Ross Dykstra Pursifull
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Patent number: 7765964Abstract: In a hybrid vehicle, on a start of an engine, when an engine water temperature is low and there is a need of advancing open and close timings of an intake valve from their most delayed positions, electric power is supplied to a WT motor either via a first route or via a second route. Even when the state of charge of a low voltage battery is very low and insufficient, the required electric power is supplied from a DC-DC converter to the VVT motor without passing through the low voltage battery. On the start of the engine, such start control ensures an adequate change of the open and close timings of the intake valve set in the stop state of the engine.Type: GrantFiled: April 19, 2007Date of Patent: August 3, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazuhiro Ichimoto
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Patent number: 7769537Abstract: An auxiliary engine warming system for a primary engine in a diesel locomotive including: a modular engine assembly including an auxiliary diesel engine, the assembly displaceable as a unit from and to a frame for the engine warming system; an auxiliary fuel tank including a fuel line detachably connected to the auxiliary engine and including a first fitting detachably connectable to a first fuel line for a fuel tank for the diesel; at least one temperature sensor interfacable with the diesel locomotive and arranged to monitor at least one temperature condition for the diesel locomotive; and an emergency dialer for automatically dialing a preprogrammed number and transmitting an alert message in response to an alarm signal from the at least one temperature sensor.Type: GrantFiled: May 1, 2008Date of Patent: August 3, 2010Assignee: Power Drives, IncInventors: Bradley R. Gates, Brian D. Gross, Kevin W. O'Neal
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Publication number: 20100191447Abstract: The invention relates to a method for starting an internal combustion engine associated with means for adapting, during an engine start operation, an amount of fuel injected based on an estimation of the volatility (PVR) of the fuel based on the comparison between a gradient of the engine speed measured upon a preceding start operation and a reference gradient (110) corresponding to a predetermined fuel, characterised by the step (111) of correcting the reference gradient based on a change (?CMF) in the engine friction torque.Type: ApplicationFiled: June 26, 2008Publication date: July 29, 2010Applicant: PEUGEOT CITROËN AUTOMOBILES SAInventor: Frédéric Gourves
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Publication number: 20100191446Abstract: A predictive engine restart method and related systems for a host vehicle having an internal combustion engine are provided. An exemplary method begins by establishing a real-time data communication channel with a neighbor vehicle that is positioned in front of the host vehicle. The method continues by receiving vehicle status data from the neighbor vehicle using the real-time data communication channel. The vehicle status data includes transmission status data for the neighbor vehicle, accelerator pedal status data for the neighbor vehicle, and brake pedal status data for the neighbor vehicle. Then, the method re-starts the engine when the transmission status data indicates a mode other than park or neutral, and when the accelerator pedal status data indicates accelerator pedal travel greater than a threshold amount.Type: ApplicationFiled: January 28, 2009Publication date: July 29, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: MIKE M. MC DONALD, WILLIAM C. ALBERTSON, JOSEPH F. NAZIONE, JR.
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Publication number: 20100191448Abstract: A method for operating an internal combustion engine in a motor vehicle, in which the internal combustion engine is switched off automatically as soon as it is not required, and in which the internal combustion engine is started automatically as soon as it is required or as soon as a timeout has expired. In order to increase the service life of the battery, the timeout is changed in dependence on a characteristic value which is correlated with the capacity of the battery.Type: ApplicationFiled: January 29, 2010Publication date: July 29, 2010Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Juergen Hofmann, Oliver Froelich
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Publication number: 20100180849Abstract: In a system, an angle sensor outputs a pulse each time an output shaft of an internal combustion engine rotates by a preset angle, and a calculator calculates speed-change information indicative of a change in a speed of rotation of the output shaft based on the pulses outputted from the angle sensor. A determiner determines, based on the speed-change information, whether at least one of the pulses outputted from the angle sensor represents a proper timing for a preset of a pinion of a starter with a ring gear mounted on the output shaft. A pinion engaging unit shifts the pinion toward the ring gear so that the pinion is engaged with the ring gear when it is determined that the at least one of the pulses outputted from the angle sensor represents the proper timing for the preset of the pinion with the ring gear.Type: ApplicationFiled: January 21, 2010Publication date: July 22, 2010Applicant: DENSO CORPORATIONInventors: Takashi SENDA, Akira KATO, Mitsuhiro MURATA, Masami NIIMI, Kenji KAWAHARA, Hideya NOTANI
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Publication number: 20100175657Abstract: A method for starting an engine of a motor vehicle under varying temperature conditions, the engine having a plurality of combustion chambers and a pump for pressurizing fuel for delivery to the combustion chambers, the method comprising during a first, higher-temperature, starting condition, directly injecting fuel into all of the combustion chambers during at least an initial fueled cycle of the engine, and spark igniting the fuel to increase a rotation speed of the engine, the initial fueled cycle comprising two rotations of a crankshaft of the engine during which at least some fuel is injected for a first time since the engine was brought from rest; and during a second, lower-temperature, starting condition, directly injecting fuel into less than all of the combustion chambers during at least the initial fueled cycle of the engine, and spark igniting the fuel to increase the rotation speed of the engine.Type: ApplicationFiled: January 9, 2009Publication date: July 15, 2010Applicant: Ford Global Technologies, LLCInventors: Ross Dykstra Pursifull, Daniel Dusa
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Publication number: 20100179743Abstract: A method for starting an engine of a motor vehicle, the engine having an intake manifold, an intake throttle controlling admission of air into the intake manifold, and a plurality of combustion chambers communicating with the intake manifold, the method comprising providing a reduced pressure of air in the intake manifold prior to delivering fuel or spark to the engine, the reduced pressure of air responsive to a temperature of the engine; delivering fuel to one or more of the plurality of combustion chambers in an amount based on the reduced pressure of air; and delivering spark to the one or more combustion chambers to start the engine.Type: ApplicationFiled: January 9, 2009Publication date: July 15, 2010Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gopichandra Surnilla, Ross Dykstra Pursifull
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Patent number: 7751965Abstract: When a start command of an engine is given in the presence of the driver's power demand, the start control sets the ignition timing of the engine to a power demand ignition timing, in order to enable quick output of a large power from the engine in response to the driver's power demand. When the start command of the engine is given in the absence of the driver's power demand in a vehicle drive state, there is little possibility of the occurrence of gear chattering noise because of application of a torque to a driveshaft. The start control accordingly sets the ignition timing of the engine to a vibration control ignition timing, in order to reduce the vibration of the vehicle body. When the start command of the engine is given in the absence of the driver's power demand in a vehicle stop state, on the other hand, application of a small torque may cause the occurrence of chattering noise.Type: GrantFiled: November 2, 2006Date of Patent: July 6, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Daigo Ando, Fumikazu Satou, Takeshi Kanayama
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Publication number: 20100168943Abstract: A vehicle control device (10) comprises a driving device (20) including an engine (22) and a rotary electric machine (24), a power circuit (30) connected to the rotary electric machine (24), a control part (50), and an ecoswitch (42). The CPU (52) of the control part (50) comprises a low fuel consumption travel instruction judgment module (60) for judging on or off of the ecoswitch (42), an operation condition switch module (62) for switching the operation condition of the rotary electric machine on the basis of the on or off of the ecoswitch (42), an engine state judgment module (64) for judging whether or not the engine (22) is in a started state or a stopped state, and a damping control module (68) for carrying out damping control when the engine (22) is stalled or stopped.Type: ApplicationFiled: July 25, 2008Publication date: July 1, 2010Applicant: TOYOTA JIDOSHA KABUSHIKIInventors: Eiji Fukushiro, Koji Yamamoto, Toshiya Hashimoto
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Publication number: 20100147240Abstract: A cold start control module for a direct injection engine includes a fuel flow determination module and a cylinder activation/deactivation module. The fuel flow determination module determines a requested fuel flow. The cylinder activation/deactivation module deactivates at least one of cylinders when the requested fuel flow exceeds a maximum fuel flow of the fuel pump during cold start.Type: ApplicationFiled: December 16, 2008Publication date: June 17, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Jesse M. Gwidt, Michael N. Kotsonas, Robert X. Monchamp, Karen Margaret-Bell Gwidt
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Publication number: 20100152995Abstract: In a method for operating an engine start-stop function for an engine of a motor vehicle, the engine start-stop function executes engine start-stop interventions in the form of an automatic shutting down and a subsequent automatic switching on of the engine, as a function of one or more vehicle states. An engine start-stop intervention determined by the engine start-stop function is selectively prevented as a function of a statement on the number of starting procedures of the engine carried out.Type: ApplicationFiled: November 30, 2009Publication date: June 17, 2010Inventors: Guido Baumann, Eckhart Festerling, Pierre Mathis, Enrique Naupari, Stefan Ostertag
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Publication number: 20100145595Abstract: A low pressure, low cost electronic fuel injection system (18) for small hand-held two cycle engines (1) is provided which employs a number of improvements, including by way of example and not of limitation, an improved low cost injector construction (45), a throttle body integration (10) that includes mounting the operational components of the supply system on a single unit, an improved ignition module (40), a pressure regulated fuel system controlled by an electronic control unit (42) employing and an adaptive algorithm based on engine speed which controls the speed by varying the amount of fuel provided to the engine.Type: ApplicationFiled: August 1, 2007Publication date: June 10, 2010Applicant: PC/RC PRODUCTS, L.L.C.Inventors: James T. Bellistri, Mazen J. Hajji, Nagesh S. Mavinahally, David R. Brower
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Publication number: 20100138139Abstract: A method for adjusting thermal comfort in a vehicle upon stopping and starting the engine. The method defines main conditions essentially relating to water temperature of the engine, to temperature inside the vehicle, to windshield fogging risk, and to risk of odors in the evaporator of the air-conditioning loop. The engine off period is limited on the basis of these conditions. This limitation can be implemented by a prohibition to stop the engine or by restarting the engine.Type: ApplicationFiled: January 30, 2008Publication date: June 3, 2010Applicant: RENAULT SASInventors: Joan Gibert, Vincent Braunschweig, Herve Couetoux, Florent Coffin
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Publication number: 20100138086Abstract: A stop range changing unit changes an engine stop range, which is a cruise range in which an operation of an engine is stopped, based on a type of fuel that is burned in the engine and that is determined by a fuel type determination unit. Therefore, the engine is stopped or started up under a cruise condition that suits the fuel type. Accordingly, even if start-up performance of the engine varies due to variation of the fuel type, unfavorable effects of the variation in the start-up performance of the engine on a smooth motion of a hybrid vehicle is alleviated.Type: ApplicationFiled: August 21, 2008Publication date: June 3, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tatsuya Imamura, Yuji Iwase, Atsushi Tabata
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Publication number: 20100131179Abstract: A diagnosis function detecting apparatus of a vehicle is configured to detect a diagnosis function for diagnosing a malfunction of the vehicle, and a detecting method thereof. A method for detecting a malfunction diagnosis function of a vehicle may include detecting the operation condition of the engine of a vehicle, determining whether the accumulated operation time of the engine or the accumulated fuel consumption amount exceeds a predetermined value, determining whether the malfunction diagnosis function is in a normal condition when the accumulated operation time or the accumulated fuel consumption amount exceeds the predetermined value, and restricting the output torque of the engine or lighting a warning lamp when the malfunction diagnosis function is in an abnormal condition, or sustaining the normal driving condition when the malfunction diagnosis function is in a normal condition.Type: ApplicationFiled: July 20, 2009Publication date: May 27, 2010Applicant: Hyundai Motor CompanyInventor: Sang IL YOON
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Publication number: 20100131152Abstract: Systems, control methods and related apparatus for engine idling reduction, to decrease operating cost and pollution related to the use of an automotive vehicle, while increasing its autonomy. Integrated are an automatic start-stop device, an increased onboard energy capacity, an electric pump that circulates engine coolant to the heater radiator to extract engine thermal inertia for cabin heating and an engine electric cooling system. The system is designed to reduce fuel consumption and air pollution while maintaining auxiliary systems in function and the cabin temperature at an acceptable level when the engine is stopped. This system may be integrated aboard internal combustion engine vehicles that have important idling periods in normal conditions. Such systems can either be implemented as retrofit kits or during a vehicle's manufacturing, directly by the original equipment manufacturer (OEM).Type: ApplicationFiled: September 4, 2009Publication date: May 27, 2010Inventors: Sylvain Castonguay, Frederick Prigge
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Patent number: 7725246Abstract: A method and a start control device are provided for controlling an automatic start-up process of a drive unit of a motor vehicle. The drive unit is automatically started when all of the predetermined start-up conditions are fulfilled. However, even in the event that an absence of the driver is detected, the drive unit automatically starts when the speed of the motor vehicle is greater than a predetermined limit speed and all other start-up conditions are fulfilled.Type: GrantFiled: August 3, 2009Date of Patent: May 25, 2010Assignee: Bayerische Motoren Werke AktiengelsellschaftInventors: Dirk Abendroth, Peter Straehle
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Patent number: 7717076Abstract: A method for starting an engine of a vehicle ensures that a stationary vehicle cannot unintentionally begin to move during the starting operation. In the event of a starting command, a check is made as to whether the vehicle is stationary. If the vehicle is stationary, at least one vehicle brake is activated. After activation of the vehicle brake, starting of the engine is authorized.Type: GrantFiled: June 4, 2004Date of Patent: May 18, 2010Assignee: Robert Bosch GmbHInventor: Volker Gandert
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Patent number: 7715957Abstract: A hybrid ECU executes a program including the steps of: calculating an SOC of a battery when turn-on of pre-air-conditioning is requested; prohibiting pre-air-conditioning when the SOC does not satisfy a condition that the SOC is greater than an SOC (Y %) necessary for warm-up and running; and notifying a driver of prohibition of pre-air-conditioning.Type: GrantFiled: February 22, 2006Date of Patent: May 11, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Katsuhiko Yamaguchi, Osamu Harada
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Publication number: 20100114464Abstract: An engine control, communication and starting system for outdoor power equipment that has a controller and a one or more safety interlocks. The controller monitors the status of the safety interlocks to determine whether the internal combustion engine can be started upon activation of a starting device. If the starting device is activated and one or more of the safety interlocks is in a condition that prevents operation of the engine, the controller generates a feedback message to the operator through a feedback system. The feedback message can be either an audible or visual message that relays information to the operator. The system further includes a speed selection circuit that allows the operator to select the desired engine speed. The controller operates the internal combustion engine at the selected engine speed. During engine operation, the controller terminates operation of the engine if any of the safety interlocks move to an un-allowed status.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Applicant: BRIGGS AND STRATTON CORPORATIONInventors: Michael Miller, Richard Zeckmeister, Marv Klowak, Jason Hansen, Daniel Brueck, Robert Koenen
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Publication number: 20100114462Abstract: Methods and systems are provided for controlling an engine of a vehicle, the engine including an intake manifold, a cylinder, and an adjustable throttle upstream of the intake manifold. One example method includes operating the engine with combustion, and in response to operating conditions, during a stopped vehicle idle condition, and without a shut-down request by the operator, automatically initiating an engine shut down. Further, the example method may include during the automatically initiated engine shut down, adjusting the throttle to maintain manifold pressure at a first value, where during progression of the shut down, the first value is adjusted based on an operating parameter and restarting the engine before it reaches zero speed in response to a restart request.Type: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Alex O'Connor Gibson, Joseph Norman Ulrey
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Publication number: 20100114463Abstract: A system for cold starting a machine is disclosed. The system may have an engine and a reductant tank. The system may also have a temperature sensor, which may be configured to generate a signal indicative of a temperature within the reductant tank. Additionally, the system may have a controller, which may be in communication with the engine and the temperature sensor. The controller may be configured to increase an operating temperature of the engine, based on the signal.Type: ApplicationFiled: October 30, 2008Publication date: May 6, 2010Inventors: Matthew Edward Leustek, Nicholas Stephen Tegtmeyer, Michael Steven Bond
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Publication number: 20100106394Abstract: A method for controlling the start-up phase of a motor vehicle driven by an internal combustion engine (12) wherein the internal combustion engines (12) is started by an electrical machine (16) that can be operated as a motor, a preferably automatically actuatable clutch (50) being located in the drive train (11) between the internal combustion engine (12) and the electrical machine (16). A faster start-up response can be achieved if the internal combustion engine (12) is driven by the electrical machine (16) when the clutch (50) is engaged during start-up, and if the clutch capacitance (MK) is reduced according to a defined parameter, preferably the engine speed, the time or the torque (ME) of the electrical machine (16) or similar.Type: ApplicationFiled: October 8, 2009Publication date: April 29, 2010Inventors: Martin Seufert, Frank Thullner, Ralph Richter, Josef Glatthaar, Roberto Tirelli, Vincenzo De Gioia, Reinhard Klein, Jurgen Wagner, Richard Schneider, Gusztav Gulyas, Peter Ebner, Stefan Strobl
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Patent number: 7706961Abstract: In a process of automatically stopping a diesel engine upon fulfillment of automatic engine stop conditions, an ECU cuts off fuel injection when the engine speed equals a preset first engine speed N1. The ECU limits the amount of intake air at the first engine speed N1 and, then, increases the amount of intake air at a point in time when the engine speed equals a second engine speed N2, at which point a piston in a cylinder which will be on a compression stroke at engine stop is expected to transfer to a last intake stroke, so that the piston in the compression stroke cylinder at engine stop stops at a point within a specified range closer to the bottom dead center than a piston in a cylinder which will be on an expansion stroke at engine stop.Type: GrantFiled: September 5, 2008Date of Patent: April 27, 2010Assignee: Mazda Motor CorporationInventor: Masayuki Tetsuno
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Publication number: 20100100306Abstract: An automatic management and control system for controlling a transport motored vehicle engine idle conditions, operation of vehicle accessories and engine controls when the vehicle is at a rest condition. This system has a controlled unit with a programmable computer having a memory for storing instructions for execution of an interactive management control program by the control unit. The control unit is conditioned by the operator of the vehicle to operate in a cabin heating mode or a cabin air-conditioning mode. The control unit is also conditioned by the control program to enable a defeat protection circuit to control a fast idle switch function in the cabin to prevent a vehicle operator person to attempt to override a idle shut-down mode of the control module when enabled for a set time period whereby to ensure autonomous automatic engine control by the control unit when the vehicle is in the rest condition with the control unit enabled to thereby optimize fuel efficiency.Type: ApplicationFiled: January 13, 2009Publication date: April 22, 2010Inventors: Gaetan Gamache, Alain Gamache
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Patent number: 7702451Abstract: A programmable engine-start system which includes a controller for mounting on a dashboard and which includes an input device for inputting a start time, a clock for keeping accurate time, a safety circuit for shutting off the engine, a display panel for displaying engine start status, a first wiring between the controller and the ignition switch, and a second wiring between the controller and a battery source.Type: GrantFiled: October 6, 2007Date of Patent: April 20, 2010Inventor: Jeffrey Crossley
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Patent number: 7698054Abstract: An engine ECU stores a map in which a region at high temperature and high pressure, a region at low temperature and low pressure, and a region provided therebetween are defined by the relationship between the temperature and pressure of fuel and the saturation fuel vapor pressure of the fuel. The engine ECU executes a program including the following steps: when start-up of the engine is requested, detecting the engine cooling water temperature and the fuel pressure; if the detection results fall into the region, setting a pre-feed time; pre-feeding until the fuel pressure reaches a desired fuel pressure threshold; and when the fuel pressure reaches the fuel pressure threshold, starting cranking. In this way, start-up failure due to fuel vapor can be avoided without unnecessarily actuating a fuel pump.Type: GrantFiled: April 11, 2007Date of Patent: April 13, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tatsuhiko Akita, Mitsuto Sakai, Naoki Kurata
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Patent number: 7693647Abstract: When it is predicted that an engine is going to be started in the near future, a heater portion of an air flow meter is energized so as to be heated in advance. Prior to the pre-heating, an intake air temperature is sensed by a temperature sensing portion of the air flow meter. After completion of start-up of an intake air temperature sensor, a difference between the intake air temperature sensed by the intake air temperature sensor and the previously sensed intake air temperature is obtained. When the difference is above a predetermined value, it is judged that the intake air temperature sensor or the air flow meter is in an abnormal condition.Type: GrantFiled: November 30, 2006Date of Patent: April 6, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yusuke Suzuki
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Patent number: 7689346Abstract: A fuel injection device of a diesel engine capable of smoothly starting the diesel engine to match an environment around the engine by saving fuel, reducing the exhaustion of carbon dioxide, and suppressing black smoke in starting the diesel engine. A rack is operated by an actuator from a lowest rack position to a starting increased fuel amount position at a lower speed than that at which the rack is operated by the actuator from the lowest rack position to the starting increased fuel amount position at the maximum operating speed. The operating speed of the rack is set in two stages, and the later operating speed of the rack is reduced less than the operating speed of the rack up to a set intermediate rack target value P2. Then, the operating amount of the rack per hour is reduced after the ignition of the engine is recognized. Also, the operating speed of the rack is controlled according to an atmospheric temperature in starting the engine.Type: GrantFiled: January 19, 2006Date of Patent: March 30, 2010Assignee: Yanmar Co., Ltd.Inventors: Hiroyuki Machiyama, Nobuyoshi Fukae, Shigeki Tada, Hideo Shiomi
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Patent number: 7684925Abstract: Cold start and warm-up operations of an HCCI engine are improved through coordinated control of engine valves, fuel injection and spark timing.Type: GrantFiled: November 16, 2007Date of Patent: March 23, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Tang-Wei Kuo, Paul M. Najt
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Patent number: 7681545Abstract: An idling stop control of the invention attains an auto start and an auto stop of an engine. At a time point t1, pre-set stop conditions are met to cut off a fuel supply to the engine. Preset starting conditions may be met at a time point t2 when the engine still continues rotating in a normal direction by the inertial force. In this state, the idling stop control starts cranking the engine. The preset starting conditions may be met at a time point t4 when a piston does not complete a compression cycle immediately before a stop of the engine but is pressed back by the compressed air to rotate the engine in a reverse direction. In this state, the idling stop control waits until cancellation of the reverse rotation of the engine and then starts cranking the engine. The arrangement of the invention desirably ensures a quick start of the engine, while effectively preventing an excess stress from acting on a gear mechanism, which connects a starter motor to the engine.Type: GrantFiled: October 19, 2004Date of Patent: March 23, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Nobuyuki Taki, Minoru Kato
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Patent number: 7673619Abstract: A gas vapor control system may include a canister for capturing gas vapor that is generated from a fuel, a throttle valve that is disposed substantially in the middle of an intake passage through which air flows into a cylinder of the engine, a gas passage that communicates from the canister to one side downstream of the throttle valve, a purge control valve that is disposed on the gas passage, and a control portion that stops an engine in an idle state and controls a real fuel injection amount that is to be injected while restarting the engine according to a first fuel amount that is included in gas vapor that is discharged into the intake passage.Type: GrantFiled: November 12, 2008Date of Patent: March 9, 2010Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Yong-Jung Park
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Publication number: 20100057332Abstract: An engine control system checks whether communication is established between a mobile unit carried by a driver and a shift lever, a brake pedal and a steering wheel through a human body of the driver. If the communication is not established, the engine control system prohibits an automatic start of an engine even when a predetermined manipulation required for starting the engine is detected. As a result, the engine is prohibited from being started automatically against the driver's intention.Type: ApplicationFiled: August 31, 2009Publication date: March 4, 2010Applicant: DENSO CORPORATIONInventors: Kunio KATOH, Kentaro Teshima
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Publication number: 20100050970Abstract: In a system, a starter includes a motor for rotatably driving an output shaft with a pinion and an actuator that shifts the pinion toward a ring gear to be engaged with the ring gear. A monitor unit monitors a rotational speed of the internal combustion engine. The rotational speed of the internal combustion engine drops after an automatic control for stop of the engine. When an engine restart request occurs with the rotational speed being within a preset range during the rotational speed of the internal combustion engine dropping by the automatic control for stop of the engine, a drive unit drives the actuator to shift the pinion toward the ring gear to be engaged with the ring gear. The drive unit rotatably drives the motor with the pinion being engaged with the ring gear to thereby crank the crankshaft.Type: ApplicationFiled: September 1, 2009Publication date: March 4, 2010Applicant: DENSO CORPORATIONInventors: Kazushige Okumoto, Akira Kato, Takashi Senda, Mitsuhiro Murata, Masami Niimi, Kiyokazu Haruno
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Patent number: 7672762Abstract: In an OFF condition of an ECO switch, a stop decision reference value Wstop is set to a value W1 (step S420). In an ON condition of the ECO switch, the stop decision reference value Wstop is set to a value W2 (step S430). When an output limit Wout of a battery set according to a battery temperature and a state of charge of the battery is not less than the set stop decision reference value Wstop, the engine is permitted to stop (step S450). When the output limit Wout is less than the set stop decision reference value Wstop, the engine is prohibited from stopping (step S460). The value W1 is specified as a value of electric power required for a smooth restart of the engine after its stop during a drive of the vehicle. The value W2 is specified to be close to a value of minimum electric power required for a restart of the engine after its stop during a drive of the vehicle and is set to be smaller than the value W1.Type: GrantFiled: November 6, 2008Date of Patent: March 2, 2010Assignee: Toyota Jidosha Kabuhsiki KaishaInventor: Tatsuyuki Matsubara
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Publication number: 20100049427Abstract: A control unit controls a start-up process of a vehicle power plant in a motor vehicle. In response to a start-up request, the control unit emits a start-up signal for initiating corresponding start-up measures for starting up the vehicle power plant. The control unit determines a time duration from the beginning of the start-up process up to the completion of a successful start-up process and sends a time duration dependent memory signal to the memory unit, which thereupon makes a time duration dependent memory entry.Type: ApplicationFiled: October 27, 2009Publication date: February 25, 2010Applicant: Bayerische Motoren Werke AktiengesellschaftInventor: Volker DIETZ
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Patent number: 7665438Abstract: A device for starting an internal combustion engine of a motor vehicle includes a starter motor having an actuator for engaging a pinion, drivable by the starter motor, with a ring gear, and a control unit which activates a switching output stage associated with the actuator and a switching output stage associated with the starter motor. The starting time of the internal combustion engine is substantially reduced by providing the starter device with a control unit.Type: GrantFiled: July 5, 2005Date of Patent: February 23, 2010Assignee: Robert Bosch GmbHInventors: Reiner Hirning, Karl-Otto Schmidt, Sven Hartmann
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Patent number: 7664594Abstract: In a starting system of an internal combustion engine, an injector for injecting fuel directly into a combustion chamber and an ignition plug for igniting an air/fuel mixture in the combustion chamber are provided, and a throttle device is provided in an intake pipe. During stopping of the engine, the starting system operates the throttle device to open a throttle valve to a predetermined throttle opening at a throttle opening speed that is set based on the intake pressure. Upon a start of the engine, the starting system actuates the injector to inject the fuel into a cylinder that is in the expansion stroke, and actuates the ignition plug to ignite the mixture in the combustion chamber.Type: GrantFiled: June 14, 2006Date of Patent: February 16, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Susumu Kojima
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Patent number: 7664591Abstract: An apparatus and a method of control of the engine for separating and detecting the fuel remaining in the engine and in the intake passages before the start of the engine and also detecting the fuel property, and calculating a parameter such as an optimum fuel injection quantity when the engine is started, and thus enabling an efficient exhaust performance and a good running performance to be compatible at start-up. The engine control apparatus has a unit for detecting or estimating a burned fuel quantity of the engine, and a unit for separating and detecting a burned fuel quantity supplied from the fuel injection valve and a burned quantity of fuel other than the fuel supplied from the injection valve.Type: GrantFiled: June 29, 2006Date of Patent: February 16, 2010Assignee: Hitachi, Ltd.Inventors: Shinji Nakagawa, Kozo Katogi, Minoru Oosuga
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Publication number: 20100036592Abstract: When a driver of a vehicle brings his/her detection part close to a case, a sensor detects a pulse of the driver at the detection part with an optical method, and takes an image of the detection part. An individual certification means determines whether the driver of the vehicle is an authorized person or not based on the image of the detection part taken by the sensor. An alcohol concentration determiner calculates an index value of a blood alcohol concentration of the driver based on the pulse detected at the detection part by the sensor, and determines whether the index value exceeds a criterial value of a drinking assessment. When it is determined that the driver of the vehicle is an authorized person and the index value does not exceed the criterial value of the drinking assessment, a permission means permits the driver to start an engine of the vehicle.Type: ApplicationFiled: July 30, 2009Publication date: February 11, 2010Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Rie Osaki, Shouji Osaki, Takashi Komura, Katsuyoshi Nishii, Hirohiko Tatsumoto
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Publication number: 20100032023Abstract: A valve freeze control apparatus for an internal combustion engine includes a concentration sensor, a valve, a freeze control device, and a start determination unit. The concentration sensor is adapted to detect an alcohol concentration of fuel supplied to the internal combustion engine. The valve is provided in one of an intake passage and an exhaust passage of the internal combustion engine, wherein the valve controls flow of air that passes through the one of the intake and exhaust passages. The freeze control device is adapted to limit malfunction of the valve caused by freeze of water in exhaust gas, and the water has been attached to the valve. The start determination unit determines to start the freeze control device when the alcohol concentration detected by the concentration sensor is equal to or greater than a reference value.Type: ApplicationFiled: August 6, 2009Publication date: February 11, 2010Applicant: DENSO CORPORATIONInventor: Takeshi FUJIMOTO
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Patent number: 7658174Abstract: The invention describes a method for controlling glow plugs in diesel engines by varying the effective electric voltage applied to the glow plugs between an initial value and a target value, which is obtained at the end of a cold start phase determined by an engine control unit and which is smaller than the initial value, wherein the increase in voltage, i.e. the voltage difference by which the effective voltage applied to the glow plugs in the cold start phase is higher than its target value, is reduced by steps from a maximum value to zero. The invention provides that the effective electric voltage is increased in the cold start phase of the engine over a predetermined period or time, which is determined by the time elapsed until a preselected number of revolutions of the engine is reached.Type: GrantFiled: September 16, 2006Date of Patent: February 9, 2010Inventor: Bernd Stoller
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Publication number: 20100030414Abstract: An eco-drive assist apparatus displays a quantity of eco-drive that indicates a degree of ecology and/or economy in driving in a hybrid vehicle equipped with an engine and a motor. The apparatus includes a first part configured to calculate the quantity of eco-drive on the basis of a vehicle power generated in the vehicle, and a second part configured to cause the quantity of eco-drive to be displayed in a graphic manner as a relative quantity to an eco-drive judgment threshold value that indicates whether the vehicle is in an eco-drive state and as a relative quantity to an engine startup threshold value that indicates whether the engine has been started up and configured to cause the quantity of eco-drive to be displayed on a boundary of the engine startup threshold value or displayed at a position where the quantity of eco-drive is worse than the engine startup threshold value when the engine has been started up.Type: ApplicationFiled: July 28, 2009Publication date: February 4, 2010Applicant: FUJITSU TEN LIMITEDInventors: Masatoshi Watanabe, Masato Ishio, Kohichi Tomiyama, Tomohiro Matsuo, Kan Saito
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Patent number: 7647908Abstract: A method for remotely starting an engine of a vehicle includes the steps of assessing a state of charge of the vehicle battery, providing a first type of remote start request to the vehicle if the state of charge of the vehicle battery is greater than a predetermined threshold, and providing a second type of remote start request to the vehicle if the state of charge of the vehicle battery is less than or equal to the predetermined threshold.Type: GrantFiled: November 14, 2008Date of Patent: January 19, 2010Assignee: GM Global Technology Operations, Inc.Inventors: William A. Biondo, Clark E. McCall, David T. Proefke
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Publication number: 20100000487Abstract: An ECU restarts a diesel engine without using a starter by injecting fuel into one of a plurality of cylinders, which is stopped in an expansion stroke, when an in-cylinder temperature of the one of the plurality of cylinders, which is stopped in the expansion stroker is equal to or higher than a preset temperature. Furthermore, the ECU restarts the diesel engine by using the starter when the in-cylinder temperature of the one of the plurality of cylinders, which is stopped in the expansion stroke, is lower than the preset temperature.Type: ApplicationFiled: July 2, 2009Publication date: January 7, 2010Applicant: DENSO CORPORATIONInventors: Shogo Hoshino, Satoshi Miyazaki