Patents Examined by Carl C Staubach
  • Patent number: 11560861
    Abstract: Disclosed is a method for regulating the speed of an engine which drives a disengageable device. The regulation of the engine speed is effected in accordance with a first mode when the disengageable device is disengaged and in accordance with a second mode when the disengageable device is engaged. The determination is effected by: —estimating the resistive torque exerted on the engine by the disengageable device; -changing a binary value from a first value representative of the disengaged state to a second value representative of the engaged state when the estimated resistive torque is higher than a first predetermined threshold for a first predetermined period of time; and —changing the binary value from the second value to its first value when, for a second predetermined period of time, the estimated resistive torque is lower than a second threshold possibly equal to the first threshold.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 24, 2023
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventor: Xavier Moine
  • Patent number: 11541871
    Abstract: A drive control system for a hybrid vehicle configured to prevent backward coasting on an uphill grade even when an engine torque cannot be delivered to drive wheels. When the hybrid vehicle is propelled by delivering engine torque to rear wheels on an uphill grade, the drive control system determines an occurrence of a failure in which the torque cannot be delivered from the engine to the rear wheels. If the occurrence of the failure is determined, the drive control system executes a hill hold control to deliver torque to establish a required drive force from a motor to front wheels while disengaging an engagement device.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 3, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kunihiko Usui, Akio Sugawara, Ryosuke Ikemura, Keisuke Ushida
  • Patent number: 11542886
    Abstract: An engine system is provided, including a controller which estimates an intake-valve-closing temperature inside a cylinder. When an engine operates at a given speed and a demanded engine load is a first load or a second load (>the first load), the controller controls so that a mixture gas inside the cylinder combusts by compression ignition, and controls so that, at the first load, the entire mixture gas combusts by compression ignition when the intake-valve-closing temperature is above a first temperature, and at least part of the mixture gas combusts by flame propagation when the intake-valve-closing temperature is below the first temperature, whereas at the second load, the entire mixture gas combusts by compression ignition when the intake-valve-closing temperature is above a second temperature (<the first temperature), and at least part of the mixture gas combusts by flame propagation when the intake-valve-closing temperature is below the second temperature.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 3, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Kaminaga, Tatsuya Fujikawa, Masahisa Yamakawa, Naoya Ito, Ryohei Matsuo, Yuta Sasaki, Junki Hori, Mitsuhiro Muto, Takuma Fujii
  • Patent number: 11529943
    Abstract: A quickshifter-equipped vehicle control unit includes an engine speed calculator configured to calculate an engine speed and a shift controller configured to operate in a quick shift mode and in a normal shift mode. The quick shift mode is a mode in which upon detection of the shift operation, the shift controller adjusts an output of an engine while keeping a main clutch in an engaged state, and the normal shift mode is a mode in which upon detection of the shift operation, the shift controller controls a clutch actuator to bring the main clutch into a disengaged state. The shift controller selects the quick shift mode when the engine speed is higher than a predetermined rotational speed threshold, and selects the normal shift mode when the engine speed is lower than the rotational speed threshold.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: December 20, 2022
    Assignee: KAWASAKI MOTORS, LTD.
    Inventors: Shohei Terai, Yuuka Matsumoto
  • Patent number: 11529946
    Abstract: A control system for a movable body configured to move by utilizing a motor torque generated by a drive motor, is provided. The system includes the drive motor including a rotor configured to output a rotational force and provided with a variable-magnetic-force magnet, and a stator opposing the rotor with a gap therebetween and provided with a plurality of coils, a powertrain component provided so as to be associated with the drive motor, and a controller having a magnetization controlling module configured to control magnetizing current flowing through the coils so as to change a magnetic force of the variable-magnetic-force magnet. During a demagnetization control in which the magnetic force of the variable-magnetic-force magnet is reduced by the magnetization controlling module, the controller operates the powertrain component to suppress a decrease in a moving force applied to the movable body due to a decrease in the motor torque.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: December 20, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Naoki Itasaka, Hirofumi Ebisumoto
  • Patent number: 11524685
    Abstract: Systems and methods for reducing driver awareness of engine stoppage by a vehicle are disclosed herein. In an embodiment, the system includes a stop-start mechanism in communication with an engine operable to cause movement of the vehicle, the stop-start mechanism programmed to shut off the engine at a beginning of a nonoperational period and restart the engine at an end of the nonoperational period. The system also includes a vibration device triggered to cause at least one vehicle component to vibrate when the stop-start mechanism shuts off the engine at the beginning of the nonoperational period, and triggered to cease causing the at least one vehicle component to vibrate when the stop-start mechanism restarts the engine at the end of the nonoperational period.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 13, 2022
    Assignee: NISSAN NORTH AMERICA, INC.
    Inventor: Farokh Kavarana
  • Patent number: 11519346
    Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: December 6, 2022
    Assignees: GE AVIO S.R.L., GE AVIATION CZECH S.R.O.
    Inventors: Giuseppe Cervelli, Simone Castellani, Miriam Manzoni, Giuseppe Bellocchio, Vojtech Jirasek
  • Patent number: 11491968
    Abstract: A control device of a hybrid vehicle including an engine, motor that receives power from the engine via an engine connecting and disconnecting device, and automatic transmission, starts the engine in a first starting method in which the engine performs ignition and rotates by itself after the engine speed is increased to be equal to or higher than a predetermined rotational speed through slipping engagement of the engine connecting and disconnecting device, or a second starting method in which the engine performs ignition and rotates by itself from a stage before the engine speed reaches the predetermined rotational speed, and controls the automatic transmission to permit a lower gear position to be established according to shift conditions when the engine is started in the second starting method during a downshift of the automatic transmission, as compared with when the engine is started in the first starting method during the downshift.
    Type: Grant
    Filed: March 28, 2021
    Date of Patent: November 8, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Naoki Nakanishi, Nobufusa Kobayashi, Masato Yoshikawa, Hironobu Aratake, Shingo Akita, Shinobu Nishiyama, Soichiro Sawamura
  • Patent number: 11485347
    Abstract: A drive force control system for a vehicle configured to change a torque to propel a vehicle certainly in a required amount by controlling output torques of an engine and a motor. A controller is configured to: calculate a required amount of change in synthesized torque of an engine torque and a motor torque; calculate a required amount of change in the engine torque and a required amount of change in the motor torque based on the required amount of change in the synthesized torque; select one of the engine and the motor whose torque will be changed further than a limit value; and adjust the torque of the selected prime mover by a counter torque.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: November 1, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Sasaki, Yoshio Ueno
  • Patent number: 11486325
    Abstract: Provided is an injector control unit capable of preventing unintended fuel injection other than an engine drive period. The injector control unit includes a cutoff mechanism for cutting off current supply to the injector from at least the ignition OFF to the next ignition ON.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 1, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventor: Koichi Tsukio
  • Patent number: 11486328
    Abstract: An injection control device includes: an arithmetic unit that obtains a valve-closing time for stopping injection of fuel from a fuel injection valve based on a degree of variation in a time change of a voltage generated when the fuel injection valve is driven based on a required injection amount; an injection amount change unit that increases or decreases the required injection amount; and a learning unit that repeats injection control of the fuel to learn the valve-closing time obtained by the arithmetic unit.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: November 1, 2022
    Assignee: DENSO CORPORATION
    Inventors: Tomoki Mori, Kosuke Kato, Hiroyuki Fukuda, Yohei Suganuma
  • Patent number: 11480129
    Abstract: A fuel system includes a fuel injector, and a fueling control unit electrically connected to a solenoid actuator in the fuel injector. The fueling control unit is structured to energize and deenergize the solenoid actuator to lift and return an armature coupled with an injection control valve. The fueling control unit also reenergizes the solenoid actuator with an armature retarding current while the armature is in flight to stabilize closing of the injection control valve. The armature retarding current can be used to electronically trim the fuel injector to limit an error in a quantity of injected fuel.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: October 25, 2022
    Assignee: Caterpillar Inc.
    Inventor: Adam Charles Hill
  • Patent number: 11473547
    Abstract: A control unit is provided for a vehicle having an internal combustion engine with a shaft, which can be coupled to an electric machine or decoupled from the electric machine. The control unit is designed to couple the electric machine to the internal combustion engine during an engine stop of the internal combustion engine. The control unit causes the electric machine to guide the shaft of the internal combustion engine. The control unit determines that a speed of the guided shaft is equal to or less than a speed threshold value and, in response thereto, decouples the electric machine from the internal combustion engine, such that the internal combustion engine stops without being guided by the electric machine.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: October 18, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Christ, Dominik Schwarzbach
  • Patent number: 11459972
    Abstract: A monitoring system obtains sensor data associated with operation of an engine, of a machine, that includes a first engine bank with a first set of fuel injectors and a second engine bank with a second set of fuel injectors. The monitoring system determines, based on the sensor data, a first temperature value that is representative of temperature differences between the first engine bank and the second engine bank for a period of time when the engine operated in a particular operation state, and a second temperature value that is representative of temperature differences between the first engine bank and the second engine bank for one or more prior periods of time when the engine operated in the particular operation state. The monitoring system determines, based on the first temperature value and the second temperature value, that a fuel injector malfunction condition occurred during the period of time.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: October 4, 2022
    Assignee: Caterpillar Inc.
    Inventors: Michael Marchionda, Dereck G. Heffron
  • Patent number: 11458952
    Abstract: In a hybrid vehicle including an engine, a first motor, a differential unit, a second motor, a driving force split device, and a controller, the controller is configured to control the engine, the first motor, and the second motor such that the hybrid vehicle travels with the engine rotating within a range of an allowable maximum rotational speed for control or less. In this case, the controller is configured to set the allowable maximum rotational speed such that the allowable maximum rotational speed is higher when a main-side ratio is lower than when the main-side ratio is higher. The main-side ratio is a ratio of a driving force that is transmitted to main drive wheels to the total driving force that is transmitted from a drive shaft to the main drive wheels and sub drive wheels via the driving force split device.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Okuda, Atsushi Tabata, Yasutaka Tsuchida, Yuuki Makino
  • Patent number: 11440526
    Abstract: A control method for an SSC function and an ISG function includes: determining, by a controller, whether a SSC activation condition is satisfied based on a vehicle running state information; stopping, by the controller, an engine and activating the SSC function by controlling a transmission to neutral when the SSC activation condition is satisfied; determining, by the controller, whether a first ISG operation condition including a first reference vehicle speed is satisfied based on the vehicle running state information in a state that the SSC function is activated; and deactivating, by the controller, the SSC function and activating the ISG function when it is determined that the first ISG operation condition is satisfied.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: September 13, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jung Hwan Bang, Jun Yong Lee
  • Patent number: 11434852
    Abstract: A recirculation pipe and an engine system including the same are provided. A recirculation pipe of an EGR apparatus may include a pipe body, and a plurality of bellows tube assemblies formed in the pipe body and including a plurality of bellows tube. One bellows tube assembly among the plurality of bellows tube assemblies and another bellows tube assembly among the plurality of bellows tube assemblies have different shapes.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: September 6, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jongcheon Kim
  • Patent number: 11428151
    Abstract: A split cycle internal combustion engine comprising a compression cylinder accommodating a compression piston; a combustion cylinder accommodating a combustion piston; a crossover passage between the compression cylinder and the combustion cylinder arranged to provide working fluid to the combustion cylinder; a controller arranged to determine a peak temperature of combustion in the combustion cylinder based on a received indication of a peak temperature of combustion in the combustion cylinder; and a coolant system arranged to regulate a temperature of the working fluid supplied to the combustion cylinder; wherein, in response to determining that the peak temperature of combustion exceeds a selected threshold, the controller is configured to control the coolant system to regulate the temperature of the working fluid supplied to the combustion cylinder so that a peak temperature of combustion in the combustion cylinder is less than the selected threshold.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 30, 2022
    Inventors: Richard Osborne, Ken Pendlebury, Matthew Keenan, Andrew Atkins, Andrew Ward, Robert Morgan
  • Patent number: 11427180
    Abstract: A control method for a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The control method includes storing the timing at which an amount or factor of change in target driving force (Fd) for the vehicle becomes a predetermined threshold or more, calculating an estimated trajectory of the rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and when an increase request for power generation is issued to the engine at different timing than the timing, controlling the rotational speed of the engine on the basis of the calculated estimated trajectory.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: August 30, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomohiro Ariyoshi, Satomi Eto
  • Patent number: 11428196
    Abstract: A fuel system for an internal combustion engine includes an actuation train having a cam follower, a pushrod, a rocker arm, and a camshaft having a cam lobe rotatable in contact with the cam follower according to an ascending ramp phasing, a peak phasing, and a descending ramp phasing. The fuel system further includes a fuel injector including an electrically actuated spill valve. A fueling control unit is in communication with the spill valve and structured to close the spill valve during the ascending ramp phasing, such that a plunger cavity pressure is increased to oppose a plunger-advancement inertia of the actuation train. Related methodology and control logic is also disclosed.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: August 30, 2022
    Assignee: Caterpillar Inc.
    Inventors: Kevin J Schreader, Victor I Yacoub, Satya Naga Deepak Pillarisetti, Bradley D. Ferguson