Including Automatic Engine Stop Patents (Class 123/179.4)
  • Patent number: 11314634
    Abstract: An ECU includes a RAM; a non-volatile memory; and a controller for controlling reading of data from, and writing of data into, the RAM and non-volatile memory. The controller is configured to: store data generated during operation into the RAM, write the data into a storage area of the non-volatile memory when the operation stops, and read the data from the non-volatile memory into the RAM when the operation starts, and control a control target using the data. When determining that an improper reset is expected, the controller writes at least part of the data generated during the operation and stored in the RAM into a save area, different from the data storage area, of the non-volatile memory. When the operation restarts from the improper reset, the controller reads, into the RAM, the data that has been written in the storage and save areas.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 26, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Takashi Nomura, Koji Yuasa
  • Patent number: 11279357
    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: December 6, 2016
    Date of Patent: March 22, 2022
    Assignee: DENSO CORPORATION
    Inventor: Satoru Ohsaki
  • Patent number: 11260738
    Abstract: A hybrid starter and generator (HSG) cooling control apparatus for a hybrid vehicle, and an HSG cooling control method thereof, the apparatus includes a receiver configured to receive driving information of an engine and a hybrid starter and generator (HSG), a cooling unit configured to cool the HSG, and a controller configured to control the cooling unit, wherein the controller determines whether the HSG is in an idle charging mode based on driving information of the engine and the HSG, determines whether the temperature of the HSG is greater than a first cooling-required temperature when the HSG is in the idle charging mode, and controls the cooling unit to be turned on when the temperature of the HSG is greater than the first cooling-required temperature.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 1, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jin Geun Bae, Joong Woo Lee, Man Jae Park, Myung Won Lee
  • Patent number: 11143156
    Abstract: An embodiment of the present invention provides an artificial intelligence apparatus for controlling an auto stop function, including: an input unit configured to receive at least one of image information or sound information with respect to a periphery of a vehicle; a communication unit configured to receive data from an external device; a storage unit configured to store a control model for the auto stop function; and a processor configured to: acquire input data with respect to traffic information through at least one of the input unit or the communication unit, acquire base data used for determining a control of the auto stop function from the input data, determine a control mode for the auto stop function by using the base data and the control model for the auto stop function, and control the auto stop function according to the determined control mode, wherein the control mode is one of an activation mode which activates the auto stop function or a deactivation mode which deactivates the auto stop functi
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 12, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Jonghoon Chae
  • Patent number: 11136930
    Abstract: An engine start control device includes an pass determination section that performs a pass determination process of determining, based on a rotation state of the engine output shaft, whether a piston in a cylinder of the engine can pass over a compression top dead center for a rotation drop period in response to an occurrence of the start request. The engine start control device also includes a start control section that when it is determined that the piston cannot pass over the compression top dead center, starts driving of the motor in a low reaction force period to start the engine, the low reaction force period being a period in which a reaction force applied to the piston by a cylinder internal pressure in the cylinder is a predetermined value or less.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: October 5, 2021
    Assignee: DENSO CORPORATION
    Inventors: Shinya Owatari, Shogo Hoshino
  • Patent number: 11111894
    Abstract: Systems and methods for operating an engine that may be automatically stopped and started without a human driver providing input to a device that has a sole function of stopping and starting the engine are presented. In one example, automatic engine starting is inhibited responsive to output of vehicle sensors that may be indicative of service being performed on a vehicle.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 7, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed Dudar, Mahmoud Ghannam
  • Patent number: 11105309
    Abstract: A drive system includes an engine as a drive source, a lead storage battery that is charged using the engine as a motive power source, a starter that starts up the engine by being driven by electric power from the lead storage battery, and a voltage sensor that measures an inter-vehicle voltage of the lead storage battery. A control device that is applied to the drive system determines that the battery has been degraded, when a voltage difference between a first battery start-up voltage and a second battery start-up voltage is larger than a preset degradation determination threshold, the first battery start-up voltage being measured by the voltage sensor when the starter is driven, the second battery start-up voltage being measured by the voltage sensor when the starter is driven at a different timing from a timing when the first battery start-up voltage is measured.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: August 31, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Michihiro Miyashita, Kazuhiko Sakakibara, Hiroyuki Toyama, Koji Ito
  • Patent number: 11085389
    Abstract: A method for operating a vehicle that may be automatically stopped and started is described. In one example, the method includes inhibiting automatic engine stopping in response to a temperature of an emissions device exceeding a threshold temperature. In addition, additional actions may be taken to reduce the temperature of the emissions device when automatic engine stopping is inhibited.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 10, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Lucas Kizer, Craig Lechlitner
  • Patent number: 11084493
    Abstract: A shift range control device switches a shift range by controlling the drive of a motor. An angle calculation unit calculates a motor angle based on a motor rotation angle signal acquired from a motor rotation angle sensor detecting a rotational position of the motor. An acceleration calculation unit calculates a motor acceleration based on the motor angle. A moving average calculation unit calculates an acceleration moving average value as a moving average of at least one of a predetermined electrical angle cycle and a predetermined mechanical angle cycle of the motor acceleration. A drive control unit adopts the acceleration moving average value to control the drive of the motor such that the motor angle becomes a target motor angle value corresponding to a target shift range.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: August 10, 2021
    Assignee: DENSO CORPORATION
    Inventor: Shigeru Kamio
  • Patent number: 11047332
    Abstract: A controller for an internal combustion engine is configured to execute: a process of switching the injection mode according to an engine operational state; an anomaly determination process of determining whether there is an anomaly in the injection system that is implementing a single injection mode during implementation of the single injection mode; a provisional determination process of provisionally determining whether there may be an anomaly in the injection system that is implementing the single injection mode during the implementation of the single injection mode; and an idle determination process of, if it is determined that there is an anomaly in the provisional determination process, prohibiting the automatic stop and executing, during an idle operation, the anomaly determination process by implementing an injection mode that uses only the injection system provisionally determined to have an anomaly in the provisional determination process.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 29, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naoya Okubo
  • Patent number: 11015562
    Abstract: A vehicle and a method use an Idle Stop and Go (ISG) system. The vehicle includes: a battery; a battery sensor configured to measure a lowest voltage of the battery at a time of startup of the vehicle; a driving unit including an engine of the vehicle; and a controller.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: May 25, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hong Min Oh, Sung Jin Park
  • Patent number: 10995721
    Abstract: Methods and systems are provided for adjusting a steering torque threshold for automatically stopping and starting a vehicle engine. In one example, a method may include, while the engine is running, determining a first steering torque threshold for inhibiting stop-start of the engine based on a steering wheel angle, and, while the engine is auto-stopped, determining a second steering torque threshold for inhibiting the stop-start based on the steering wheel angle and whether a static stop-start event is present or a rolling stop-start event is present. In this way, a non-linear hysteresis is provided for automatically stopping and starting the engine.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 4, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Hafiz Khafagy, Hussam Makkiya, Ahmed Awadi, Gregory Ziemba
  • Patent number: 10961971
    Abstract: The present disclosure provides a system for reducing cold start emissions of a motor vehicle. A brushless DC motor is coupled to an engine for cranking the engine. In response to receiving a cold start signal from a cold start actuator, the motor controller activates the brushless DC motor to crank the engine for a cold start duration and increase fuel pressure. In response to a motor controller receiving an auto start signal from an auto start actuator, the motor controller activates the brushless DC motor to crank the engine for an auto start duration that is shorter than the cold start duration. In response to determining that the cold start duration or the auto start duration has expired, an engine controller activates the fuel delivery system to deliver fuel to the engine.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 30, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lei Hao, Wei Zeng, Chandra Namuduri, Sharon Xiaobin Li, Michael C. Zumbaugh
  • 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: 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: 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: 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