Control Of Motor Or Generator Specific To Hybrid Operation Patents (Class 180/65.285)
  • Patent number: 10894539
    Abstract: A hybrid vehicle starts execution of temporary increase control that temporarily increases an allowable discharge power that is a maximum power dischargeable from a power storage device, on satisfaction of a predetermined start condition, and terminates execution of the temporary increase control on satisfaction of a predetermined termination condition. When a predetermined stop condition that is different from the predetermined termination condition is satisfied during execution of the temporary increase control, the hybrid vehicle terminates execution of the temporary increase control and prohibits subsequent execution of the temporary increase control until elapse of a first predetermined time. This configuration suppresses frequent repetition of a temporary increase of the allowable discharge power (output limit) of the power storage device such as a battery and its cancellation.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: January 19, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keita Sato
  • Patent number: 10894537
    Abstract: A speed change control system that suppress a change in a vehicle behavior, and prevents a reduction in an energy efficiency. The speed change control system is applied to a vehicle comprising: a transmission; a wheel connected to the transmission; a motor in which torque or speed is changed by changing a speed ratio of the transmission; and an electric storage device connected to the motor. A controller is configured to select a first mode if an SOC level of an electric storage device is lower than a predetermined level, and select a second mode if the SOC level of the electric storage device is equal to or higher than the predetermined level.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: January 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken Kuretake
  • Patent number: 10814874
    Abstract: The present disclosure relates to an apparatus and method for controlling a creep torque in an environmentally-friendly vehicle. The apparatus includes detectors that detect driving-related information of the vehicle and a controller that calculates rolling resistance based on the driving-related information and variably controls the creep torque in consideration of the calculated rolling resistance depending on whether the vehicle satisfies a creep cruise control operating condition.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 27, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hui Un Son, Jin Kyeom Cho
  • Patent number: 10807489
    Abstract: Methods and systems are provided for charging an onboard energy storage device in a hybrid vehicle depending on vehicle operating conditions. In one example, a method includes charging the onboard energy storage device through a dual clutch transmission via an electric machine positioned downstream of the dual clutch transmission, and controlling a driveline disconnect clutch positioned downstream of the electric machine. In this way, charging of the onboard energy storage device may be conducted under conditions where a speed of the vehicle is either above a predetermined threshold speed, or below the predetermined threshold speed.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 20, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Meyer, Stan L. Bower
  • Patent number: 10770761
    Abstract: Under a condition that a command to stop a fuel cell system is received and a state of charge of a secondary battery is equal to or lower than a threshold which is a value obtained by adding a first predetermined value to a lower limit at which electric power required to stop and start the fuel cell system is supplied, forced charging of the secondary battery by a fuel cell is performed until the state of charge reaches the threshold. After the forced charging is performed, in a case where the command to stop the fuel cell system is received within a predetermined period, the controller sets the threshold to a value obtained by adding a second predetermined value lower than the first predetermined value to the lower limit under the condition.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 8, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Watanabe, Junichi Matsuo, Shinji Aso
  • Patent number: 10744989
    Abstract: This brake device is provided with: a brake actuator which applies to a wheel a brake torque depending on the rotation of an electric motor; a booster circuit which boosts a reference voltage outputted from a battery; and a motor control unit which controls the electric motor. Depending on the state of the booster circuit, the motor control unit switches between a first drive process for driving the electric motor by supplying thereto a boost voltage, which is a voltage that has been boosted by the booster circuit, and a second drive process for driving the electric motor by supplying a reference voltage to the electric motor and by performing spark advance control.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 18, 2020
    Assignee: ADVICS CO., LTD.
    Inventor: Yuki Ota
  • Patent number: 10696165
    Abstract: This invention relates to an apparatus for controlling a range extender (104) in an electric vehicle (100). The apparatus comprises means for receiving trip information, means for retrieving power usage information relating to a previous trip, the previous trip having trip information which is at least in part in common with the trip information; and means for activating the range extender (104) in dependence on said power usage information. The invention also extends to an associated method, computer product and system.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 30, 2020
    Assignee: TEVVA MOTORS LIMITED
    Inventors: Asher Bennett, Moria Bennett, John Hankinson, Malcolm Powell, Trevor Power, Robert Watson, Zhengye Zhu
  • Patent number: 10693164
    Abstract: A fuel cell vehicle may include: an electric traction motor; an inverter; a fuel cell system; a first boost converter including first low voltage terminals connected to a fuel cell and first high voltage terminals connected to the inverter, the first boost converter including a first capacitor connected between positive and negative terminals of the first high voltage terminals; a first relay connected between the first boost converter and the inverter; and a controller, wherein the controller is configured to: shut down the fuel cell system; while a voltage of the fuel cell is higher than a voltage threshold, discharge the first capacitor and maintain a voltage thereof higher than the voltage of the fuel cell; and when the voltage of the fuel cell becomes lower than the voltage threshold, stop discharging the first capacitor and disconnect the first boost converter from the inverter by opening the first relay.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 23, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yusuke Seo
  • Patent number: 10661778
    Abstract: A hybrid vehicle including: an engine; a motor; a power storage device; and a control device configured to: i) automatically start and stop the engine; ii) execute, in a current trip, a power storage capacity decreasing control of controlling the engine and the motor such that a power storage capacity of the power storage device in a case where the hybrid vehicle is predicted to be parked at a predetermined point is lower than that in a case where the hybrid vehicle is predicted to not be parked at the predetermined point, and execute, in a next trip, a power storage capacity recovering control; and iii) limit execution of the power storage capacity decreasing control when the hybrid vehicle is predicted to be parked at the predetermined point is predicted and a stopping prohibiting condition for the engine is satisfied.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 26, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keisuke Morisaki
  • Patent number: 10597020
    Abstract: A hybrid electric powertrain includes an electric machine delivering torque to an engine in an engine start event having initial cranking and transition phases. In response to a request for an engine start event, a controller commands delivery of the motor torque to the crankshaft. In the initial cranking phase the controller regulates crankshaft acceleration from zero speed up to a target cranking speed in a closed-loop manner via a predetermined fixed profile. In the transition phase, the crankshaft accelerates from the target cranking speed to a target idle speed using a feed-forward torque value blended, using a calibration table, from a predetermined engine drag torque to a reported engine torque. In the transition phase the controller periodically adjusts a speed trajectory of the crankshaft, with the magnitude and frequency of adjustment based on combustion of the engine and calibration of the feed-forward torque.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 24, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Anthony L. Christman, Michael D. Potts, Paul S. Lombardo, Anthony Burt, Jeffrey R. Aldrich
  • Patent number: 10536047
    Abstract: An electric motor control system and methods of manufacture are provided. The system includes a power supply module including a printed circuit board (PCB) and a plurality of power processing components configured to convert an input voltage into an output voltage. The system also includes a motor management module including an encapsulated, heat-sharing package for housing a plurality of moisture-sensitive driver components configured to convert the output voltage from the power supply module and provide output voltages for application to windings of the electric motor.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: January 14, 2020
    Assignee: Regal Beloit America, Inc.
    Inventors: Roger Carlos Becerra, Ming Li, Mohamad Khalil Dahouk
  • Patent number: 10486656
    Abstract: A work vehicle includes a vehicle body frame, an electric motor supported by the vehicle body frame, a power transmission mechanism including a drive shaft connected to an output shaft of the electric motor to transmit power generated by the electric motor to a wheel on which a tire is mounted, a supporting member supported by the vehicle body frame to rotatably support the drive shaft, and a parking brake provided on an outside of the supporting member to restrict a rotation of the drive shaft.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 26, 2019
    Assignee: Komatsu Ltd.
    Inventors: Shinichi Naitou, Takuya Ishizaka
  • Patent number: 10343683
    Abstract: A power transmission system of a vehicle and a gear-shift control method are provided. The power transmission system includes a first drive assembly (101) and a second drive assembly (102). The first drive assembly includes a first automatic transmission (2) and a first motor (1) connected with the first automatic transmission (2) for outputting power to two wheels of the vehicle. The second drive assembly (102) includes a second automatic transmission (2000) and a second motor (1000) connected with the second automatic transmission (2000) for outputting power to the other two wheels of the vehicle. The first and second automatic transmission are configured to be shifted to a preset gear or a gear adjacent to the preset gear, such that when one of the first and second automatic transmission is shifted to the preset gear, the other one of the first and second automatic transmission is shifted to the preset gear or the gear adjacent to the preset gear.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 9, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Jintao Zhang, Cailin Fu
  • Patent number: 10330714
    Abstract: An apparatus for detecting quality of an indoor power distribution line including a power input module, a switch circuit, a load circuit and a detecting module is provided. The power input module receives an AC power through an indoor power distribution line. The switch circuit is controlled by the detecting module to transmit the AC power to the load circuit. When the switch circuit is on, the detecting module detects a voltage and a current of the load circuit to respectively serve as a first voltage value and a first current value. When the switch circuit is off, the detecting module detects a voltage of the AC power to serve as a second voltage value. The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof obtained according to the first voltage value, the first current value and the second voltage value.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: June 25, 2019
    Inventor: Cheng-Tsuen Hsu
  • Patent number: 10309842
    Abstract: A magnet temperature estimation device for a rotating electric machine includes a rotating electric machine configured with a rotor having a magnet and a stator having a coil, a coolant supply part configured to supply a coolant flowing from the stator toward the rotor, and a magnet temperature calculation part configured to calculate a temperature of the magnet using a temperature of a coolant that receives heat from the coil.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: June 4, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Munehiro Matsubara, Yuta Ito
  • Patent number: 10272913
    Abstract: A method for recovering energy during braking of a vehicle is provided. The vehicle has at least one rotatable ground engaging member, a generator operatively connected to the at least one rotatable ground engaging member, and at least one energy storage device coupled to the generator. The method has the steps of: determining a speed of the vehicle; determining a desired slip of the at least one rotatable ground engaging member based at least in part on the speed of the vehicle; and applying a braking torque to the at least one rotatable ground engaging member using the generator based at least in part on the desired slip. A regenerative braking system for a vehicle and a vehicle having such a system are also disclosed.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 30, 2019
    Assignee: CONSORTIUM DE RECHERCHE BRP—UNIVERSITE DE SHERBROOKE S.E.N.C.
    Inventors: Maxime Boisvert, Philippe Micheau, Didier Mammosser
  • Patent number: 10099557
    Abstract: A vehicle driven by a motor includes: a secondary battery configured to supply an electric power to the motor; a power regeneration portion configured to supply, to the secondary battery, a regenerative electric power that is recovered at a time of braking the vehicle; a power storage amount detecting portion configured to detect a power storage amount of the secondary battery; and a controlling portion configured to control charging and discharging of the secondary battery. The controlling portion estimates a regenerative electric power, and estimates an expected power-storage increasing amount, so as to calculate a virtual power storage amount from a sum total of the expected power-storage increasing amount and an actual power storage amount. The controlling portion performs charging and discharging on the secondary battery based on the virtual power storage amount.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 16, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuo Matsubara, Kenji Umayahara
  • Patent number: 10033326
    Abstract: A vehicle having at least two electric machines includes an oil circulation path that circulates oil through the electric machines. A controller commands the electric machines to fulfill torque demands. The controller utilizes the oil temperature in the oil circulation path to control the commanded torque output by the electric machines. In the event of a failure or fault in an oil temperature sensor, the controller estimates the oil temperature from the temperature of coils within at least one of the electric machines. The estimated oil temperature is utilized instead of the sensed oil temperature to control the torque outputs to satisfy torque demands.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 24, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Balakrishna Rao, Rimma Isayeva, Daniel Luedtke
  • Patent number: 10017045
    Abstract: A transmission for a hybrid powertrain includes a first input, a second input, a third input, and an output. A sun gear is attached to and rotatable with the first input. A carrier is attached to and rotatable with the third input. The carrier rotatably supports a plurality of pinions. Each of the pinions includes a first pinion gear and a second pinion gear. Each second pinion gear of the pinions is disposed in meshing engagement with the sun gear. A first ring gear is disposed in meshing engagement with each first pinion gear of the pinions. The first ring gear is disposed in torque communication with the second input. A second ring gear is disposed in meshing engagement with each second pinion gear of the pinions. The second ring gear is disposed in torque communication with the output.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 10, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Shawn H. Swales, Craig S. Ross
  • Patent number: 10000124
    Abstract: Systems, apparatus and methods to multiple levels of redundancy in torque steering control and propulsion control of an autonomous vehicle include determining that a powertrain unit of the autonomous vehicle is non-operational and disabling propulsion operation of the non-operational powertrain unit and implementing torque steering operation in another powertrain unit while propelling the autonomous vehicle using other powertrain units that are configured to implement torque steering operation and propulsion operation.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: June 19, 2018
    Assignee: Zoox, Inc.
    Inventor: Timothy David Kentley-Klay
  • Patent number: 9981563
    Abstract: In electric vehicle supply equipment (EVSE), interruption of charging due to overheating is prevented by adjusting the pulse duty cycle on the control pilot conductor communicating the maximum allowed current level to the electric vehicle, the adjustment being performed whenever the EVSE temperature exceeds a predetermined threshold temperature below the maximum operating temperature as a function of the approach of the temperature to the maximum operating temperature.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 29, 2018
    Assignee: AeroVironment, Inc.
    Inventor: Albert Joseph Flack
  • Patent number: 9975563
    Abstract: An operating mode determining unit determines an operating mode of each of a plurality of vehicles to be either one of a normal operating mode and an energy saving mode on the basis of a necessary boarding and alighting time which is required to allow passengers to board or alight from the vehicles at each of a plurality of stations. An index value specifying unit specifies an index value on the basis of total energy consumption when the vehicles operate in the operating mode determined by the operating mode determining unit, a difference between the necessary boarding and alighting time and a boarding and alighting time, or the number of changing times of operating modes. An operating plan determining unit determines the operating mode of each of the vehicles to be an operating mode having a smallest index value.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 22, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsuaki Morita, Hiroyuki Kono, Masaya Mitake, Yasuyuki Suzuki
  • Patent number: 9908523
    Abstract: A hybrid vehicle includes an engine, a first MG (motor generator), a second MG, a battery electrically connected to the first MG and the second MG, an engine ECU configured to control the engine, and a hybrid ECU (Electronic Control Unit) configured to control the first MG and the second MG and communicate with the engine ECU. When an abnormality of communication with the engine ECU is not found and a history of an abnormality of the engine main body is not found and electric power generated by the first MG during cranking of the engine is lower than electric power receivable by the battery during MD (Motor Drive) running (fail-safe running) in which the engine is stopped, the hybrid ECU achieves recovery to normal running in which actuation of the engine is permitted, with cranking of the engine by power generation torque of the first MG.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: March 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaru Kimura
  • Patent number: 9873349
    Abstract: A first warming-up control unit calculates warming-up time charging power from a power storage SOC and power storage temperature and causes a generator motor to perform power generation operation thereby charging a power storage unit on the basis of the calculated warming-up time charging power. A second warming-up control unit applies, during the power generation operation, a hydraulic load to a hydraulic pump by a hydraulic load unit and performs horsepower control of the hydraulic pump using a value obtained by subtracting the warming-up time charging power from preset warming-up time pump horsepower.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: January 23, 2018
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Takayuki Doi, Yusuke Kamimura
  • Patent number: 9868364
    Abstract: An apparatus and a method of controlling creep driving of an electric vehicle are provided to improve driving convenience and fuel efficiency. The apparatus is applied to an electric vehicle to which a ‘one-foot drive’ mode is applied to execute the creep driving and actively determine whether the creep driving is provided based on a vehicle speed.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: January 16, 2018
    Assignee: Hyundai Motor Company
    Inventor: Woo Cheol Cho
  • Patent number: 9761065
    Abstract: A vehicle includes a regenerative braking system, which may include an electric machine, configured to provide regenerative braking torque to vehicle traction wheels. The vehicle further includes at least one controller configured to provide indicia for display to indicate performance of the regenerative braking system. The indicia represent a comparison of a braking profile that is recorded during a deceleration event and a calculated braking profile that is based on a detected forward object. In various embodiments, the indicia may include a numerical or letter grade representative of a similarity between the recorded braking profile and the calculated braking profile and/or a visual representation of the comparison of the recorded braking profile and the calculated braking profile.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: September 12, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Brian Thomas Soo, Bernard D. Nefcy, David Paul Tourner, Francis Thomas Connolly
  • Patent number: 9725090
    Abstract: A speed control device in a traveling work vehicle changes a speed of rotational drive power from an engine to drive vehicle wheels and includes: a target speed calculator determining a target speed, based on operation deflection of a speed change device. A vehicle speed controller adjusting a speed change ratio based on the target speed. A vehicle speed obtainer obtaining an actual vehicle speed. A forcible target speed modifier forcibly modifying the target speed to a lower speed based on operation of a braking device. A release can treat an operation of the speed change device as a trigger to cancel the target speed forcibly modified by the forcible target speed modifier, and conforming the target speed to the actual vehicle speed.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: August 8, 2017
    Assignee: KUBOTA CORPORATION
    Inventors: Shigeru Komatsu, Keiji Takahashi
  • Patent number: 9643596
    Abstract: A method for controlling a state of a drive train of a power train including at least one motive power source and a set of couplers and reducers of which respective engagements define a plurality of states of the drive train, by engagement of one or a plurality of energy sources in provision of torque and by the ratio of transmission of same to wheels. States targeted from a current state are ranked in real time on the basis of the difference between the motive force available in a current state and in each target state.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 9, 2017
    Assignee: RENAULT S.A.S.
    Inventors: Gregory Planche, Frederic Roudeau, Aurelien Lefevre
  • Patent number: 9522697
    Abstract: An electrohydraulic power steering system includes a sensor for detecting steering information, a motor pump unit generating a hydraulic pressure for assisting steering power depending on a driver's steering wheel operation, and a hydraulic cylinder driven with the hydraulic pressure supplied from the motor pump unit to assist the steering power. A control method of the electrohydraulic power steering system includes acquiring steering angle information depending on the driver's steering operation and information on a steering torque applied through a steering wheel at the time of operating the steering wheel; determining a target steering torque depending on the acquired steering angle; and variably controlling a motor rotational speed of the motor pump unit so that the steering torque acquired through the sensor satisfies the target steering torque.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 20, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jin Seok Bang
  • Patent number: 9496735
    Abstract: The invention provides for an energy storage system that has a first plurality of battery cells that each are capable of a first C-rate. The plurality of battery cells can be charged at an equivalent rate on a kWh/minute basis as a second plurality of battery cells that each are capable of second C-rate, with the second C-rate being higher than the first C-rate. The first plurality of battery cells may have an energy storage capacity which is approximately twice the energy storage capacity for the second plurality of cells.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: November 15, 2016
    Assignee: Proterra Inc.
    Inventors: Reuben Sarkar, Seamus McGrath, Michael Alan Finnern
  • Patent number: 9463687
    Abstract: A method is provided for operating a drive unit for a hybrid vehicle. The drive unit includes a drive assembly with an internal combustion engine, and an electric motor, and a transmission featuring several sub-transmissions shifting between the drive assembly and an output. Through a planetary transmission, the electric motor is coupled to an input shaft of a first sub-transmission and an input shaft of a second sub-transmission shifted in parallel to the first sub-transmission. Through a frictional-locking separating clutch, the internal combustion engine couples to the input shaft of the first sub-transmission and, if the separating clutch is locked, is coupled to the same element of the planetary transmission together with the input shaft of the first sub-transmission.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: October 11, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Kaltenbach, Uwe Griesmeier
  • Patent number: 9331503
    Abstract: A power exchange controller adjusts a power exchange rate between a plurality of batteries and an upper authority to modify a state-of-health of each of the plurality of batteries over time. The power exchange controller is operable to receive a total power demand from an upper authority and each of the plurality of batteries connected to a charging station and adjust the power exchange between the upper authority and each of the plurality of batteries by detecting a battery state-of-health of each of the plurality of batteries, determining the target state-of-health for the plurality of batteries based on the state-of-health of each of the plurality of batteries and determining a power exchange with each of the plurality of batteries based on the total power demand and a difference between the target state-of-health and the state-of-health of each battery.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 3, 2016
    Assignee: NISSAN NORTH AMERICA, INC.
    Inventor: Shinsuke Yonetani
  • Patent number: 9331484
    Abstract: A power exchange controller adjusts a power exchange between a plurality of batteries and an upper authority to control deterioration of a state-of-health of each of the plurality of batteries at an equivalent rate. The power exchange controller is operable to receive a total power demand from the upper authority and each of the plurality of batteries connected to a charging station and adjust the power exchange between the upper authority and each of the plurality of batteries by detecting a battery temperature of each of the plurality of batteries and determining the power exchange with each of the plurality of batteries based on the total power demand and an equalized temperature determined from each battery temperature. Each power exchange is determined so that the battery temperature of each of the plurality of batteries during the power exchange is adjusted to the equalized temperature.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 3, 2016
    Assignee: NISSAN NORTH AMERICA, INC.
    Inventor: Shinsuke Yonetani
  • Patent number: 9302588
    Abstract: A vehicle is provided with an electric machine and a storage device. The electric machine is configured to provide drive torque and the storage device is configured to supply power to the electric machine. The vehicle includes a variable voltage converter (VVC) that is connected between the storage device and the electric machine. The vehicle also includes a controller that is configured to receive input indicative of a VVC input current and a VVC output voltage. The controller is further configured to selectively disable drive torque responsive to the input.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Yuan Zhang, Michael W. Degner
  • Patent number: 9145128
    Abstract: A method for controlling a vehicle regenerative braking event includes maintaining a converter clutch closed while braking, while an engine connected to the impeller is running, opening the converter clutch when impeller speed reaches a reference speed difference relative to engine idle speed, and while the engine is off, opening the converter clutch when impeller speed reaches a speed required for a transmission pump, connected to an impeller, to produce line pressure at a desired magnitude.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: September 29, 2015
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Xiaoyong Wang, Mark S. Yamazaki, Wei Liang, Rajit Johri, Ryan A. McGee, Ming L. Kuang
  • Publication number: 20150148190
    Abstract: A torque assist using a motor generator mechanically coupled to an output shaft of an engine via a belt is prohibited during a lock-up transition from a state where a lock-up clutch is released to a state where the lock-up clutch is engaged, and the torque assist using the motor generator is permitted when a condition for the execution of the torque assist is satisfied except during the lock-up transition.
    Type: Application
    Filed: April 30, 2013
    Publication date: May 28, 2015
    Applicants: NISSAN MOTOR CO., LTD., JATCO Ltd
    Inventors: Kouichi Mori, Shigeru Tomoda
  • Publication number: 20150149010
    Abstract: An engine start using an electric motor during a vehicle travel is performed by increasing an output torque of the electric motor in a slip state where a second frictional engagement element 3 connecting the electric motor 1 and a driving wheel slips. A controller determines a requested acceleration amount from a depression amount of an accelerator pedal. When the requested acceleration amount is significant, a different torque increment characteristic is applied, compared to a case where the requested acceleration amount is not significant. Thus, the internal combustion engine starts in a high response depending on the requested acceleration amount input by the driver, thereby improving a vehicle acceleration response.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 28, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Hiroki Matsui
  • Publication number: 20150149005
    Abstract: A method according to an exemplary aspect of the present disclosure includes, among other things, controlling a vehicle using an estimated torque of an electric machine, the estimated torque based on one or more parameters associated with the electric machine that are independent from measured current feedback.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Daniel Richard Luedtke, Fazal Urrahman Syed, Siwei Cheng
  • Patent number: 9039568
    Abstract: Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an electrical load may be automatically activated to consume electrical energy produced during driveline braking so that driveline braking may be extended. The electrical load may be a windscreen heater or other device.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: May 26, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Adam Nathan Banker, Alex O'Connor Gibson, Jeffrey Allen Doering, James William Loch McCallum, David Oshinsky
  • Patent number: 9038759
    Abstract: [Problem] To provide a hybrid work vehicle which is simple in configuration, good in ease of mounting on a vehicle and capable of efficiently transmitting motive power. [Solution] The hybrid work vehicle includes: an engine (1); a hydraulic pump (4) which is driven by the engine; a work device (5) which is disposed at the front of the vehicle and performs work using the hydraulic pump as a drive source; a motor/generator (6) which generates electric power by use of the torque of the engine; and a travel drive device which causes the vehicle to travel by rotating and driving wheels by use of the electric power generated by the motor/generator. The hybrid work vehicle is steered while the vehicle bends by way of a center joint (15). The travel drive device includes: a plurality of electric motors (21 and 22); and a propeller shaft (8) which is linked with the plurality of electric motors and transmits motive power from the plurality of electric motors to the wheels.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: May 26, 2015
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Satoru Kaneko, Takashi Ikimi, Hidekazu Moriki, Noritaka Ito, Hiroaki Yanagimoto, Toru Kikuchi, Toshio Kotaka
  • Publication number: 20150142235
    Abstract: A vibration damping control apparatus is mounted on a hybrid vehicle provided with an engine and a motor generator connected to the engine. The vibration damping control apparatus is a vibration damping control apparatus configured to control the motor generator to generate vibration damping torque which suppresses vibration of the hybrid vehicle. The vibration damping control apparatus is provided with: a gain correction value controlling device configured to change a gain correction value associated with the vibration damping torque, for each crank angle immediately before compression torque is generated in the engine, or for each crank angle at which the compression torque is zero.
    Type: Application
    Filed: May 21, 2012
    Publication date: May 21, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Miwa, Takashi Kawai
  • Publication number: 20150142232
    Abstract: A control device of a hybrid vehicle includes an electric motor outputting a running torque at the time of motor running and a starting torque at engine start, in a state of the motor running using even the starting torque, the control device being configured to give a notification of the state to a driver when a charging capacity is smaller than a first predetermined value, and to start an engine when the charging capacity is smaller than a second predetermined value which is smaller than the first predetermined value.
    Type: Application
    Filed: February 28, 2012
    Publication date: May 21, 2015
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Atsushi Tabata, Tooru Matsubara, Koichi Okuda, Kenta Kumazaki, Tatsuya Imamura, Keita Imai, Takeshi Kitahata, Shunya Kato, Yasuhiro Hiasa
  • Patent number: 9027680
    Abstract: In a hybrid vehicle, a target rotational speed and a target torque or a target operation point of an engine are set to a predetermined optimal efficiency rotational speed and a predetermined optimal efficiency torque that enable the engine to be operated efficiently when the engine is operated while a state of charge of the battery is equal to or more than a control-center state of charge after a start of a driving of the vehicle. Then, the engine and motors are controlled so that the engine is operated at the target operation point and a torque equivalent to a torque demand is output to a ring gear shaft or an axle.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroki Sawada, Kazuyoshi Obayashi
  • Patent number: 9031724
    Abstract: An electric vehicle includes a motor unit configured to drive a wheel, an ECU and an inverter unit. A motor control circuitry of the inverter unit includes a rotational frequency controller operable to perform rotational frequency control. The electric vehicle also includes a torque control abnormalities detector configured to detect an abnormality of torque control performed by the motor control circuitry. The electric vehicle also includes a control mode switcher configured to, in response to determination by the torque control abnormalities detector that there is an abnormality of torque control, cause the motor control circuitry to switch from torque control to rotational frequency control performed by the rotational frequency controller.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 12, 2015
    Assignee: NTN Corporation
    Inventor: Takayoshi Ozaki
  • Publication number: 20150127207
    Abstract: A control system for a generator of an electric drive is provided. The control system may include a converter circuit configured to communicate with one or more phases of a stator of the generator, and a controller in communication with the converter circuit and an engine associated with the electric drive. The controller may be configured to determine an operational state of the electric drive based on at least engine speed, and engage one of a map-lookup control scheme and a fixed-theta off control scheme for operating the generator based on the operational state of the electric drive.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: Jackson Wai, Thuong Le, Adam Braun, Jesse Gerdes, James Siegle, Mark Hartman
  • Patent number: 9026292
    Abstract: Methods and systems for controlling a fuel tank isolation valve coupled to a fuel tank in a vehicle are disclosed. In one example approach, a method comprises, in response to a refuel request, actuating a fuel tank isolation valve to vent a fuel tank for refueling; and, in response to a pressure in the fuel tank below a threshold pressure after a predetermined time duration, discontinuing actuation of the fuel tank isolation valve to seal the fuel tank.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 5, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael Paul Lindlbauer, Ted Haladyna, William David Treharne
  • Patent number: 9026286
    Abstract: A plugin hybrid vehicle is installed with an engine, an oil pump coupled to an output shaft of the engine to be driven by the engine, a motor/generator coupled to the output shaft of the engine, and a battery. An ECU controls the motor/generator to rotate the output shaft of the engine during charging of the battery using power supplied from a power source on the exterior of the plugin hybrid vehicle.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: May 5, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Masaya Yamamoto, Hiroyuki Takayanagi
  • Publication number: 20150119189
    Abstract: A hybrid vehicle operates in an electric-drive-only mode and one or more modes using an internal combustion engine. A control pedal is movable to respective positions by a driver for indicating a desired vehicle motion. A controller selectably activates the engine according to instantaneous values of a variable wheel output demand and a variable pull-up threshold. The pedal position is converted to a respective instantaneous wheel output demand in response to an initial value from a mapping relationship that is modified in response to a difference between the initial value and the variable pull-up threshold. The pull-up threshold may preferably be dynamically determined according to a state of charge of a battery for powering the electric drive. The modification to the wheel output demand preferably reduces the slope of the mapping relationship near the pull-up threshold to reduce pedal position sensitivity in a region near the dynamically varying pull-up threshold.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Carol L. Okubo, Thomas S. Gee
  • Patent number: 9020678
    Abstract: A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device comprises a mode selecting operation device selecting an acceleration drive mode oriented to vehicle acceleration and a fuel efficiency drive mode oriented to fuel efficiency.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Noritaka Nakajima
  • Patent number: 9020734
    Abstract: An apparatus for selecting operating conditions of a genset, the apparatus including a processor circuit configured to select a set of operating points from a plurality of operating points of the genset each comprising an engine speed in a generator electrical output value and a plurality of cost values associated with operating the genset at respective operating points such that the sum of the cost values associated with the operating points in said set is minimized and such that the engine speed increases or decreases monotonically with monotonically increasing or decreasing electrical power output values.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 28, 2015
    Assignee: GE Hybrid Technologies, LLC
    Inventors: Wei Liu, Nicolas Louis Bouchon