Including Automatic Engine Stop Patents (Class 123/179.4)
  • Patent number: 10920732
    Abstract: Methods and systems are provided for restarting an engine following an engine idle-stop. In one example, a method may include upon receiving an engine restart request during an engine idle-stop, initiating combustion in a selected cylinder and based on a predicted time of attainment of peak pressure in the cylinder, activating a starter motor.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: February 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: David Andrew Ord, Brad Alan VanDerWege, Jeffrey Allen Doering, Joseph Lyle Thomas
  • Patent number: 10899336
    Abstract: In a control system for an internal combustion engine which stops the rotation of an internal combustion engine by applying a counter torque thereto, the generation of noise or vibration accompanying the stop of rotation of the internal combustion engine is suppressed as much as possible. In the control system provided with a controller being adapted to stop the rotation of the internal combustion engine by carrying out forced stop processing in which the counter torque is inputted, in cases where the forced stop processing is carried out after the completion of the execution of specific motoring processing, the controller makes the counter torque at a certain timing before the counter torque becomes a predetermined torque after the start of the execution of the forced stop processing smaller than in the case where the forced stop processing is carried out without carrying out the specific motoring processing.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 26, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoya Nagano, Koji Miwa, Kazuya Suzuki
  • Patent number: 10815952
    Abstract: A vehicle control device configured to be capable of executing idle stop control to automatically stop an engine when a predetermined automatic stop condition is satisfied and restart the engine when a predetermined restart condition is satisfied during the automatic stop of the engine, the vehicle control device includes: a start request detector, a shift position detector, and a delay time setting module. A start request detector detects a driver operation indicating a request for starting the engine by a driver. A shift position detector detects a shift position of a shift changer. A delay time setting module sets, on a basis of presence or absence of the driver operation and the shift position, a delay time from when the engine is restarted until when an automatic stop of the engine is permitted.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: October 27, 2020
    Assignee: SUBARU CORPORATION
    Inventors: Tetsu Matsuzaki, Masaki Komuro, Masatoshi Kishikawa
  • Patent number: 10773705
    Abstract: A control apparatus for a vehicle that includes an engine including an intake valve and an exhaust valve includes an electric generator, a lock up clutch, and a valve timing controller. The valve timing controller is able to control valve timing of the intake valve or the exhaust valve, or both, to a low efficiency region and a high efficiency region. The valve timing controller controls the valve timing to the high efficiency region on the condition that the electric generator performs regenerative power-generation on decelerated travel of the vehicle. The valve timing controller controls the valve timing to the low efficiency region on the condition that the lock up clutch is switched from an engaged state to a disengaged state, with the valve timing having been controlled to the high efficiency region on the decelerated travel.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: September 15, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Takahiro Kinoshita
  • Patent number: 10738753
    Abstract: A control device for a vehicle includes an electronic control unit. The electronic control unit executes control for prohibiting stop-and-start control until a predetermined period elapses after an ignition switch is turned ON. The electronic control unit executes scene-specific electric power supply control for operating a first function group that is a specific function and stopping a function other than the first function group in accordance with a state of the vehicle at a time when the ignition switch is turned OFF. The electronic control unit sets the predetermined period during which the stop-and-start control is prohibited longer in a case where the first function group is in an operating state than in a case where the first function group is not in an operating state when the ignition switch is turned ON.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirokazu Kato, Kensuke Nakanishi, Marina Aragi
  • Patent number: 10724456
    Abstract: A vehicle includes an internal combustion engine including an exhaust passage, a catalyst provided in the exhaust passage, and an electronic control unit. When the engine stop condition is established, the electronic control unit stops fuel injection and increases a catalyst inflow oxygen amount that is an amount of oxygen flowing into the catalyst by a specified oxygen increase amount. The engine stop condition is a condition for stopping operation of the internal combustion engine. The specified oxygen increase amount is larger than an increased part of the catalyst inflow oxygen amount that is increased by the stop of the fuel injection.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: July 28, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Miwa, Koichi Kitaura, Takahiro Tsukagoshi, Kenji Inoshita, Kazuya Suzuki, Takeru Yoshida, Isao Chinzei, Kaoru Otsuka
  • Patent number: 10724490
    Abstract: Systems and methods for operating a vehicle that includes an engine that may be automatically stopped and started are described. In one example, thresholds for allowing or inhibiting of automatic engine stopping and starting may be adjusted in response to an automatic engine cranking time. Additionally, automatic engine stopping may be inhibited during some conditions.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: July 28, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Hanyang Chen, Michael Irby, Matthew Loiselle
  • Patent number: 10689000
    Abstract: Disclosed herein is a method of more quickly heating the cabin air in a hybrid electric vehicle. In one aspect, when a switch is engaged, and a temperature sensor indicates that an ambient temperature is below a predetermined threshold, and an engine coolant temperature is below a predetermined threshold, the method allows for operation of the vehicle in a charge sustaining mode in order to increase the load on the engine and generate more heat for the cabin.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 23, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dean Schlingmann, Ryan Miller
  • Patent number: 10675986
    Abstract: The driving support device is provided with: a speed acquisition unit for acquiring speed information of a vehicle; a distance information acquisition unit for acquiring information on the distance between the vehicle and an intersection; a running state judgment unit for judging a dangerous running state to be determined by a stop condition for causing the vehicle to stop in front of the intersection and an entry condition for causing the vehicle to enter the intersection, on the basis of the distance to the intersection, the speed of the vehicle, and signal information; a determination unit for determining whether to cause the vehicle to stop at the intersection or to pass through the intersection if the running state judgment unit judges that the vehicle is in the dangerous running state; and a specification unit for specifying a regeneration time zone when running accompanied with regenerative braking is performed or an inertia time zone when inertia running is performed, before the vehicle arrives at the
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 9, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Yuki Sano
  • Patent number: 10669980
    Abstract: The disclosure is related to methods, apparatuses, and systems for launching an engine start-stop function in vehicles. A vehicle terminal may transmit to a server a traffic information acquiring instruction which carries current location information for the vehicle; receive traffic information transmitted by the server; and launch the engine start-stop function for the vehicle when the traffic information satisfies a preset condition. The server may acquire the traffic information of a road at which the vehicle is located currently after receiving the traffic information acquiring instruction and transmit the acquired traffic information to the vehicle terminal. Whether to launch the engine start-stop function may be based on the traffic information such that, for example, the engine is not stopped when the vehicle is expected to be stopped for too brief a time period.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 2, 2020
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventors: Yueyue Chu, Yan Xie, Da Wang
  • Patent number: 10648374
    Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 12, 2020
    Assignee: Cummins Inc.
    Inventors: Philipe F. Saad, Edward J. Lyford-Pike, Milan K. Visaria, Agneya Turlapati, Anamitra Bhattacharyya, Jason R. Griffin, Brendan C. Norton
  • Patent number: 10619614
    Abstract: A vehicle engine automatic control device has a brake pedal operation amount detecting unit that detects an amount of brake pedal operation by a driver, a negative pressure-based force multiplying unit that multiplies a force, with which a brake is operated, using an intake negative pressure of an engine, a negative pressure detecting unit that detects a negative pressure of the negative pressure-based force multiplying unit, and a coast stop control unit that stops the engine when the amount of brake pedal operation that is detected is equal to or greater than a first operation amount threshold during coast drive, and re-starts the engine when the negative pressure that is detected falls below a first negative pressure threshold after the engine stops.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: April 14, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kouichi Mori, Motoyuki Hattori
  • Patent number: 10563625
    Abstract: A method of implementing start-stop in an internal combustion engine, the engine having exhaust gas recirculation (EGR) from at least one dedicated EGR (D-EGR) cylinder. For stopping the engine, the camshaft is locked, and a hydraulic cam phaser is used to cushion the engine inertia. The engine is stopped such that one of the D-EGR cylinders is in top-dead center position. For starting the engine, that D-EGR cylinder is fuel-injected, and exhaust bleed-off performed if necessary.
    Type: Grant
    Filed: January 13, 2018
    Date of Patent: February 18, 2020
    Assignee: Southwest Research Institute
    Inventors: Raphael Gukelberger, Garrett Anderson
  • Patent number: 10560998
    Abstract: A circuit assembly for simulating a load current from an on-board network having an input connected to a line of the on-board network of a vehicle for connecting to a load, an output connected to a light source which replaces the load. A series circuit formed by a resistor and a switch, wherein the resistor has a resistance in the same order as that of the load to be simulated, and the series circuit is connected in parallel with the input. A switching controller with the input connected in parallel to the input of the circuit assembly, and draws a current from the line of the on-board network for connecting to a load smaller than the load current of the load to be replaced. The circuit assembly is open the switch and actuate the switching controller and to close the switch and deactivate the switching controller.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: February 11, 2020
    Assignee: OSRAM BETEILIGUNGSVERWALTUNG GMBH
    Inventor: Peter Niedermeier
  • Patent number: 10549755
    Abstract: A start-stop device initiates an automatic switch-off process of a driving machine in a motor vehicle. The start-stop device is designed to automatically switch off the driving machine when predefined switch-off conditions are met. The start-stop device has a stop coordinator which identifies a switch-off behavior suitable for the switch-off process on the basis of available information and ensures that the identified switch-off behavior is implemented when an automatic switch-off process is initiated.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 4, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Tobias Meinhard, Frank Bodendorf
  • Patent number: 10527010
    Abstract: A control system for an internal combustion engine includes an electric supercharger that includes a compressor wheel that is configured to be rotated by an electric motor. The control system includes a bypass passage, a bypass valve, and an exhaust gas recirculation passage. The control device is configured to control the electric supercharger and the bypass valve based on an operation condition of the internal combustion engine. The control device is configured to cause a stepping operation of the electric supercharger in which acceleration and stopping of the compressor wheel are repeated within a predetermined cleaning time after operation of the internal combustion engine is stopped.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 7, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Makio Oshita, Toshihiro Yamamichi, Satoshi Umemura
  • Patent number: 10513258
    Abstract: To reduce an error of a phase difference between an angle of a crankshaft of an internal combustion engine and an angle of a rotor of a motor generator, provided are a control device for a hybrid vehicle and a control method for a hybrid vehicle, for detecting the angle of the crankshaft, detecting the angle of the rotor of the motor generator, determining whether or not a condition for ensuring that the error of the phase difference between the angle of the crankshaft and the angle of the rotor of the motor generator is becomes small is satisfied, and calculating the phase difference when the error of the phase difference is determined to be small.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: December 24, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shingo Yamaguchi, Toshiaki Date
  • Patent number: 10514012
    Abstract: A control device is provided for controlling a vehicle that includes: an internal combustion engine having a fuel injection valve, an ignition device and an in-cylinder pressure sensor; and an electric motor configured to rotate to drive a crankshaft of the internal combustion engine. The control device is configured, when an assist torque is applied to the crankshaft by means of the electric motor, to perform an ignition start-up operation that starts fuel injection and ignition from an expansion stroke cylinder to start up the internal combustion engine. The assist torque is a torque by which the crankshaft is not caused to rotate, and is greater when an in-cylinder pressure in a compression stroke cylinder is higher.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 24, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yukari Okamura
  • Patent number: 10502610
    Abstract: A fill level measurement device including a long-term energy store, the discharging of which is prevented by a diode and a switch or by two switches when the fill level measurement device is switched off Therefore, energy is storable for a long period of time, even if the field device is switched off.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 10, 2019
    Assignee: VEGA GRIESHABER KG
    Inventors: Josef Fehrenbach, Karl Griessbaum
  • Patent number: 10487762
    Abstract: In some embodiments of the present disclosure, sensors mounted on a vehicle can allow opportunities for coasting to be predicted based on environmental conditions, route planning information, and/or vehicle-to-vehicle or vehicle-to-infrastructure signaling. In some embodiments of the present disclosure, these sensors can also predict a need for power and/or an end of a coast opportunity. These predictions can allow the vehicle to automatically enter a coasting state, and can predictively re-engage the engine and/or powertrain in order to make power available with no delay when desired by the operator.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 26, 2019
    Assignee: PACCAR Inc
    Inventors: Uday Vadlamani, Carl Anders Hergart, Michael D. Gerty
  • Patent number: 10451021
    Abstract: In an information providing method and device for a vehicle, an engine of the vehicle is stopped automatically when a predetermined permission condition is satisfied in a state in which the vehicle is stopped by a brake operation executed by a driver. The driver is notified of support information for satisfying the permission condition when the permission condition is not satisfied in the state in which the vehicle is stopped by the brake operation. A vehicle stop keeping control generates a braking force capable of maintaining a vehicle stopped state even when the brake operation decreases. The notification of the support information is stopped when it is determined that the driver does not wish to automatically stop the engine in a state in which the support information is being notified and the vehicle stop keeping control is in operation.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 22, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuta Okitsu, Hiromoto Shimizu, Haruki Satou, Tadafumi Noji, Tetsuya Shinohara
  • Patent number: 10415529
    Abstract: There is provided a controller for a vehicle that can execute, while the vehicle is stationary or moving, control of automatically stopping an engine upon determining that automatic stop conditions are met, and automatically restarting the engine upon determining that automatic restart conditions are met while automatic engine stop is in effect. At a time of first engine restart in one trip, the controller diagnoses whether a system that automatically restarts the engine is normal or abnormal. The automatic stop conditions for in-motion automatic engine stop include automatic stop execution conditions that are set based on a state of the vehicle, and automatic stop permit conditions that are set based on a travel environment. The controller sets the automatic stop permit conditions such that determination criteria are more stringent as a cumulative number of times of in-motion automatic engine stop in one trip is smaller.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: September 17, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Majima
  • Patent number: 10371074
    Abstract: A vehicle diagnosis system determines whether a vehicle has an abnormality in a temporal engine stop function or a power regeneration function that negates a greenhouse gas reduction effect of the engine. When the vehicle diagnosis system determines an abnormality, the vehicle diagnosis system provides a notification of the abnormality.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: August 6, 2019
    Assignee: DENSO CORPORATION
    Inventor: Satoru Ohsaki
  • Patent number: 10351122
    Abstract: A vehicle control apparatus includes an electronic control unit. The electronic control unit is configured to perform feedback control of a motor such that a torque is output for stopping a crankshaft at a target angle. A first angle is used as the target angle during a first period from start of the feedback control to first detection of rotation of the crankshaft in a negative rotational direction for returning the crank angle. A second angle is used as the target angle during a second period from the lapse of the first period to detection of a changeover in a rotational direction of the crankshaft from the negative to a positive rotational direction. The electronic control unit is configured to return the target angle to the first angle at a first timing after the lapse of the second period.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Fujimoto, Wan Leng Ang, Yu Miyahara, Yuji Iwase
  • Patent number: 10315659
    Abstract: An apparatus for a clutchless manual transmission includes a transmission, a drive shaft, and a motor shaft. The transmission includes an input shaft, an output shaft, and an intermediate gear. The input shaft is coupled to an engine shaft to receive power and the output shaft is coupled to the drive shaft to transmit power to a wheel of a vehicle. The input shaft and output shaft are coupled by a plurality of input and output shaft gears. A first synchronizer is coupled to the output shaft to selectively engage a particular output shaft gear, adjusting the speed of the output shaft relative to the input shaft. The motor shaft receives power from a motor and includes a second synchronizer to selectively engage the engine shaft to the drive shaft via the motor shaft. The apparatus can be used to reduce acceleration and turbo lag in hybrid and high-performance vehicles.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 11, 2019
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Chad L. Jacoby, Jacob M. Jurewicz, Joshua E. Siegel, Amos G. Winter, V, Young Suk Jo, Patricia Yen, Guillermo Pamanes Castillo, Daniel Scott Dorsch
  • Patent number: 10288029
    Abstract: A system for a vehicle having an engine and a battery includes a memory and a controller. The memory has a first current expected to be provided by the battery for restarting the engine during a warm cranking event and a second current expected to be provided by the battery for restarting the engine during a cold cranking event. The controller to predict a first minimum voltage of the battery expected during the warm cranking event based on the first current and a second minimum voltage of the battery expected during the cold cranking event based on the second current.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 14, 2019
    Assignee: Lear Corporation
    Inventors: Jose Antonio Canals Esteve, Antoni Ferre Fabregas, David Gamez Alari
  • Patent number: 10252728
    Abstract: In an information providing method for a vehicle, an engine is stopped automatically when a predetermined permission condition is satisfied in a state in which the vehicle is stopped by a brake operation executed by a driver. The permission condition is a brake operation amount of a brake having reached a predetermined brake operation amount. The driver is notified of support information prompting the driver to increase the brake operation amount when the permission condition is not satisfied after a predetermined time has elapsed since the vehicle was stopped. A braking force capable of maintaining a vehicle stop state is generated by a vehicle stop keeping control. The driver is notified of the support information when the brake operation amount decreases before the predetermined time has elapsed in a state in which the vehicle has been stopped by the brake operation and the vehicle stop keeping control is executed.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 9, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yuta Okitsu, Hiromoto Shimizu, Haruki Satou, Tadafumi Noji, Tetsuya Shinohara
  • Patent number: 10220850
    Abstract: A host vehicle includes a combustion engine configured to provide a propulsion torque to satisfy a propulsion demand. The vehicle also includes at least one sensor configured to detect a position of a reference vehicle. A vehicle controller is programmed to determine a path between a current host vehicle location and an upcoming intersection. The controller is also programmed to forecast a path clearance time at which the host vehicle is able to traverse the intersection in response to sensor data indicating the reference vehicle moving within the path ahead of the host vehicle. The controller is further programmed to deactivate the engine prior to a host vehicle stop based on the path clearance time being greater than a time threshold.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 5, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Mohammad Naserian, Allan K. Lewis
  • Patent number: 10190560
    Abstract: A stop-start control system for a vehicle includes a camera disposed at the vehicle and having a field of view exterior and forward of the vehicle. A control includes an image processor operable to process image data captured by the camera. Responsive to image processing of captured image data, the control determines the presence of a stopping area ahead of the vehicle and being approached by the vehicle. Responsive to determination of the presence of the stopping area ahead of the vehicle and being approached by the vehicle, and responsive to determination that the driver of the vehicle releases the accelerator pedal of the vehicle so the vehicle is coasting toward the determined stopping area, the control causes the engine to at least partially shut off.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: January 29, 2019
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Brian J. Tedesco, Sai Sunil Charugundla Gangadhar
  • Patent number: 10184441
    Abstract: A system and method for controlling automatic start/stop operations for an engine. While the engine is shutdown, operation of the engine may be automatically started upon expiration of a threshold time limit or in response to one or more adverse or deteriorated conditions of a power storage device, such as, for example, a state of health, state of function, or state of charge of the power storage device. After the engine has been automatically started, the ability of the controller to subsequently automatically stop the operation of the engine may be disabled until at least one secondary condition is satisfied. Upon satisfaction of the at least one secondary condition, the controller may again be enabled to at least automatically stop the operation of the engine.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 22, 2019
    Assignee: Cummins Inc.
    Inventors: Martin T. Books, Erik L. Piper, Brian R. Alderfer, Jaideep Prasad, John P. O'Brien
  • Patent number: 10173666
    Abstract: A vehicle includes an engine and a controller. The controller starts the engine in response to a brake status before and during a change in vehicle operating mode achieving predetermined states, and expiration of a timer initiated upon completion of the change and having a duration based upon a learned mean mode-specific shift time window. The change is initiated in response to a request to change vehicle operating mode while the engine is off.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: January 8, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Shafeek Khafagy, Jonathan Wentworth, Essam Mohamed, Rashad Jamal Allen
  • Patent number: 10168824
    Abstract: An electronic device provided in a vehicle and including a touch screen; a first camera configured to capture an image of a driver of the vehicle; and a controller configured to restrict a touch input function with respect to the touch screen in response to an eyeline of the driver included in the image being out of a preset driving range for more than a predetermined time.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: January 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventor: Suhyung Jang
  • Patent number: 10106146
    Abstract: Methods and systems are provided for reducing torque pulsations during hybrid engine shutdown and restarts. A valve actuating mechanism may be actuated to operate an engine with a selected valve lift profile during engine restart and shutdown events that is distinct from the valve lift profile applied during cylinder combustion. The selected valve lift profile reduces cylinder pressure during engine shutdown and restarts.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Kenneth James Miller
  • Patent number: 10072628
    Abstract: A control device for an engine of the invention executes an automatic stop control for stopping stop a rotation of a crank shaft when a predetermined automatic stop condition is satisfied. The device acquires a focused peak value of the engine speed appearing after a time when a rotation direction of the crank shaft first reverses while the automatic stop control has been executed, determines, based on the focused peak value, whether there will be an excessive peak value expected to depart from a predetermined permission range after the focused peak value appears, and executes a starter start control for driving the starter, restarting the fuel supply and igniting the fuel to restart an operation of the engine when a predetermined restart condition is satisfied, the engine speed is within the predetermined permission range and it has been determined that there will be no excessive peak value.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: September 11, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Suzuki, Susumu Kojima
  • Patent number: 10065646
    Abstract: An engine stop control device is provided for a vehicle that ensures a sufficient operation frequency of coast stop operation during travel on a congested road, thereby to improve practical fuel economy. The vehicle has an engine that is capable of being restarted. A controller is configured to stop the engine automatically when the vehicle, after experiencing a travel with a vehicle speed VSP exceeding a first threshold value, decreases the speed below a CS (coast stop) start vehicle speed. The controller is further configured to set a second threshold value below the first threshold value. The controller is further configured, after starting from an engine automatic stop due to the coast stop control and when the vehicle experiences travel exceeding the second threshold value without exceeding the first threshold value, to permit the automatic engine stop due to the coast stop control at least once.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: September 4, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Ken Yamada
  • Patent number: 10054097
    Abstract: A vehicular control apparatus includes a battery (20), a voltage detection unit (21b), a current detection unit (21a), a first calculation unit, a second calculation unit, a determination unit, and a control unit. The first calculation unit calculates a first SOC of the battery based on an open circuit voltage of the battery. When the accuracy of the first SOC is equal to or more than a predetermined level, the control unit controls a predetermined operation accompanied by charging and/or discharging the battery based on the first SOC. When the accuracy of the first SOC is lower than the predetermined level, the second calculation unit calculates a second SOC by adding a time integrated value to a past first SOC determined to have the accuracy equal to or more than the predetermined level, and the control unit controls the predetermined operation based on the second SOC.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: August 21, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Toyama
  • Patent number: 10024249
    Abstract: Embodiments of the invention relate to a motor vehicle controller operable automatically to stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology. The controller is operable automatically to adjust an engine stop delay parameter in dependence on the value of at least one vehicle endurance parameter. The engine stop delay parameter corresponds to a period for which the engine of the vehicle remains switched on when it is determined that a condition exists allowing the engine to be switched off during the course of a drive cycle. The value of the endurance parameter is responsive to stop/start operations being performed during the course of a drive cycle. The controller is operable to adjust the engine stop delay parameter to prevent the value of the endurance parameter exceeding a prescribed maximum endurance value before a prescribed time period elapses.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 17, 2018
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Matthew Hancock, Guy Robinson
  • Patent number: 9989031
    Abstract: An engine automatic stop/restart device includes a ring gear which is linked to a crank shaft of the engine, a starter motor which is energized so as to be rotated, a pinion gear which transmits a rotation of the starter motor to the ring gear, and a pinion gear movement unit which is energized so as to move the pinion gear in a direction of the ring gear, whereby the pinion gear is engaged to the ring gear, in a state where the engine automatic stop/restart device automatically stops the engine when an engine automatic stop condition is established, and restarts the engine when an engine restart condition is established, and includes an inertially-rotating-restart-decision unit which permits or prohibits a restart of the engine, which is inertially rotating after the engine is automatically stopped, in accordance with a detection result of an oil temperature of the engine.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 5, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Osamu Ishikawa, Tomohisa Shoda
  • Patent number: 9982613
    Abstract: A vehicle includes a first sensor, a second sensor, an engine, a fuel supplying device, and a control device. The control device includes a first sensor detecting unit, a second sensor detecting unit, a vehicle status detecting unit, and a control unit. The control unit is switchable among a regular state, a start-stop enabling state, and an idling-stop state. The control unit switches into the start-stop enabling state from the regular state once the control unit determines that the first sensor and the second sensor are both triggered. The control unit further switches into the idling-stop state and controls the fuel supplying device to stop supplying fuel once the control unit determines that the vehicle status meets an idling-stop condition.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 29, 2018
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, LITE-ON TECHNOLOGY CORP.
    Inventor: Cheng-An Chen
  • Patent number: 9970403
    Abstract: When a start condition is satisfied after the internal combustion engine has been stopped according to an automatic stop control, a control apparatus reversely rotates the engine to compress an air in an expansion stroke cylinder at that time point, and thereafter generates a first time combustion. The apparatus determines whether the start condition becomes satisfied based on a first start request owing to a driving operation by a driver of a vehicle on which the engine is mounted. When the start condition becomes satisfied based on the first start request, the control apparatus makes a maximum value of an engine generating torque by the first time combustion and/or a maximum torque of the engine generating torque by a second time combustion larger as compared to when the start condition becomes satisfied based on a second start request other than the first start request.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: May 15, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Hayashima, Mitsuhiro Tabata, Koji Murakami, Tomoya Takahashi
  • Patent number: 9932914
    Abstract: A hybrid electric vehicle includes an internal combustion engine configured to provide power to traction wheels, and a controller. The controller is configured to, in response to the engine being off and a power request exceeding an engine-start threshold, delay an engine start when vehicle speed is below a predetermined value. Delaying an engine start may include providing an engine-start-threshold offset. The offset decreases as vehicle speed increases. The engine is started when the power request exceeds a sum of the engine-start threshold and the engine-start-threshold offset.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: April 3, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohamad Mansour, Shunsuke Okubo, Carol Louise Okubo, Paul Stephen Bryan, Kenneth Frederick, Floyd Cadwell
  • Patent number: 9932952
    Abstract: An electricity supply device that reduces a delay in starting an engine. A vehicle includes a starter motor for starting an engine, a start magnet making and breaking connection between the starter motor and a battery, a fuel pump, and a control unit controlling fuel injection and ignition timing of the engine. An electricity supply device of the vehicle includes: a main relay making and breaking connection between a load of the vehicle, the load not including the starter motor, the start magnet, and the battery; a clutch switch connected to the battery, and set in a conducting state when a clutch lever is gripped; a start switch connected between the clutch switch and a coil of the start magnet; and a diode allowing a current to flow from a point of connection between the clutch switch and the start switch to a coil of the main relay.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: April 3, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Hitoshi Tsusaka
  • Patent number: 9909550
    Abstract: Improved remote start/stop systems and methods for use with a truck and/or vehicle transport trailer. Embodiments include a transport trailer and truck, the trailer comprising a platform that moves in response to a hydraulic system coupled to the platform. The hydraulic system is powered by the truck engine. A pressure transducer in communication with the hydraulic system is configured to measure a change in hydraulic pressure. A start/stop controller is in communication with the pressure transducer. The start/stop controller is configured to receive the measurements from the pressure transducer, determine to turn off the truck engine in response to the measurements, and provide an message via an indicator in communication with the start/stop controller, the indicator located proximate to a hydraulic control for the first hydraulic system. Some embodiments include a button that may override turning off the truck engine, or cause the truck engine to restart.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: March 6, 2018
    Assignee: Cottrell, Inc.
    Inventors: Phillip Bryan Howes, David Trenbeath
  • Patent number: 9869260
    Abstract: The control device executes a first control for controlling a throttle valve opening degree to a first opening degree when a particular condition is satisfied. The particular condition is a condition that it is predicted upon a satisfaction of an engine stop condition that a level of one of noise and vibration generated in an interior of a vehicle from a source other than an engine is equal to or larger than a predetermined level when an engine rotation stops. The control device executes a second control for controlling the throttle valve opening degree to a second opening degree larger than the first opening degree without executing the first control when the particular condition is not satisfied upon the satisfaction of the engine stop condition.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 16, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Susumu Kojima, Yusuke Suzuki
  • Patent number: 9867330
    Abstract: A riding lawn care vehicle may include a mobility assembly configured to support the riding lawn care vehicle during movement over ground, a working assembly configured to perform a working function, an engine operably coupled to the mobility assembly and the working assembly, a drive control system, and an auto idle assembly. The engine may be configured to selectively provide power to the mobility assembly and the working assembly. The drive control system may be configured to control delivery of the power from the engine to the mobility assembly. The auto idle assembly may be configured to automatically provide inputs to the drive control system to shift to an idle mode responsive to detection of predetermined criteria.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 16, 2018
    Assignee: HUSQVARNA AB
    Inventor: Sean Dwyer
  • Patent number: 9863389
    Abstract: A control unit according to the present invention performs an automatic stop control in which an injection of fuel from a fuel injection valve is stopped to stop a rotation of an engine when an automatic stop condition is satisfied. Furthermore, the control unit performs a first injection, in which fuel is injected from the fuel injection valve of a cylinder in an expansion stroke, and an ignition operation for igniting the fuel injected by the first injection, when a restart demand occurs after an initiation of the automatic stop control. In addition, the control unit performs a second injection, in which fuel is injected from the fuel injection valve of a cylinder in a compression stroke, and an ignition operation for igniting the fuel injected by the second injection.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Suzuki, Susumu Kojima
  • Patent number: 9856846
    Abstract: Provided is a system of carrying out engagement of a pinion and a ring gear at optimal timing and suppressing a bite-in sound, in a vehicle including an idle stop system. In a vehicle control device including an automatic stop unit which automatically stops an engine on the basis of an operating state of a vehicle; an automatic start unit which controls a starter during a period until the engine completely stops after the automatic stop unit executes the automatic stop of the engine, and restarts the engine; and an engine rotation detection unit which detects or operates a crank phase or a rotation number of the engine, the automatic start unit determines a control command of the starter at an interval shorter than an update interval of a signal of the engine rotation detection unit.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 2, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Koji Matsufuji, Toshio Hori, Koji Onishi, Yoshiaki Nagasawa, Shigenori Nakazato
  • Patent number: 9815465
    Abstract: A control device according to the present invention performs an automatic stop control in which an injection of fuel from a fuel injection valve is stopped and a rotation of an engine is stopped when an automatic stop condition is satisfied. Furthermore, the control device controls an injection operation of fuel and an ignition operation to the fuel in consideration of compression when the fuel is actually ignited in an expansion stroke cylinder, when a re-start demand occurs after an initiation of the automatic stop control and the engine is to be re-started by an ignition start-up. Specifically, the control device predicts a crank angle at an actual ignition time point in a case where processing for performing the ignition start-up at the present time whenever a predetermined time period has passed. Then, the control device initiates the ignition start-up when the crank angle falls within a predetermined range in which a sufficient compression can be attained.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 14, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Suzuki, Susumu Kojima
  • Patent number: 9790884
    Abstract: A control system of a vehicle includes an electronic control unit. The electronic control unit is configured to (a) measure characteristics of a battery installed on the vehicle, (b) determine whether the battery is a designated battery or a non-designated battery, based on at least one of the characteristics, and (c) determine whether an idling stop function of the vehicle is permitted to be executed, based on a threshold value of at least one of the characteristics of the battery. The threshold value is set to a first threshold value when the battery is determined as the designated battery, and set to a second threshold value that is different from the first threshold value when the battery is determined as the non-designated battery.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Sato, Hiroaki Tabuchi
  • Patent number: 9790910
    Abstract: What is described is a system for controlling an engine of a vehicle. The system includes a gear shifter having a gear selection sensor configured to determine a selected gear position. The system also includes a proximity sensor configured to detect object data within a predetermined area of the vehicle. The system also includes a controller coupled to the gear shifter and the proximity sensor and configured to control the engine based on the selected gear position and the object data.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 17, 2017
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventor: Luis C. Quinteros