Patents by Inventor Yuki Minase

Yuki Minase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140330500
    Abstract: An electronic control unit reduces output of an engine using a detection value of an acceleration sensor such that acceleration of a vehicle does not exceed a predetermined threshold value. In a case where there is an abnormality in the acceleration sensor, the electronic control unit sets the acceleration threshold value to be greater than that in a case where there is no abnormality, and the electronic control unit limits the vehicle speed to a predetermined value or slower.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Minase, Masashi Takagi, Motonari Ohbayashi, Hiroshi Shimada, Toshihiro Takagi
  • Patent number: 8852055
    Abstract: Provided is a vehicle drive control apparatus including a shift mechanism configured to be able to selectively switch its shift position to either a driving position or a non-driving position; and a controller configured to control the drive force output from a motor serving as a drive source of the vehicle according to operation of an accelerator, to transmit the drive force from the motor to wheels when the shift position is in the driving position, and to stop the transmission of the drive force from the motor to the wheels when the shift position is in the non-driving position. The controller also performs drive force suppression processing to control the drive force, when the shift position is switched from the non-driving position to the driving position with the accelerator turned ON, such that the acceleration of the vehicle does not exceed an upper limit of acceleration.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: October 7, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Kodama, Motonari Ohbayashi, Yuki Minase, Masashi Takagi, Toshihiro Takagi
  • Publication number: 20140297153
    Abstract: An electronic control unit adjusts drive force generated by an engine in accordance with the amount of manipulation of an accelerator pedal. When the manipulation amount of the accelerator pedal meets a predetermined condition, the electronic control unit executes drive force limiting control for limiting the drive force generated by the engine and changes the degree of limiting of the drive force during the execution of the drive force limiting process according the gradient of the road surface.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 2, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Takagi, Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi
  • Patent number: 8838351
    Abstract: When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: September 16, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi, Masashi Takagi
  • Patent number: 8751120
    Abstract: A system includes: a shift mechanism; and a position detecting device detecting an operating position of the shift mechanism on the basis of an output signal of a sensor attached to the shift mechanism. An execution mode of a driving force limiting process that limits driving force is set on the basis of the operating position that is detected by the position detecting device. The driving force limiting process is executed on the basis of the execution mode of the driving force limiting process and a vehicle operation state. When it is determined that there is an abnormality in the position detecting device in a state that the driving force limiting process is not executed, setting the execution mode on the basis of the operating position of the shift mechanism is prohibited, and execution of the driving force limiting process is allowed on the basis of the vehicle operation state.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 10, 2014
    Assignee: Toyota Jidosha Kabushiki
    Inventors: Yuki Minase, Masashi Takagi, Motonari Ohbayashi, Hiroshi Shimada, Toshihiro Takagi
  • Publication number: 20140136061
    Abstract: When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 15, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi, Masashi Takagi
  • Publication number: 20140129098
    Abstract: When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 8, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi, Masashi Takagi
  • Publication number: 20140107907
    Abstract: A vehicle is equipped with an auxiliary that is driven by the output of an internal combustion engine and which is capable of obtaining drive force by transmitting the output of the internal combustion engine to driving wheels. If an air conditioning compressor is being driven during engine idling of the internal combustion engine, an electronic control apparatus implements output-increase control for increasing the output of the internal combustion engine in comparison to when the air conditioning compressor is not being driven. If the force applied to the accelerator pedal (Pac) is equal to or more than a prescribed value (Pth), output-reduction control for reducing the output of the internal combustion engine by initiating engine idling of the internal combustion engine, and prohibiting the drive of the air conditioning compressor, is implemented.
    Type: Application
    Filed: July 4, 2011
    Publication date: April 17, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Takagi, Motonari Ohabayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi
  • Publication number: 20130191002
    Abstract: A drive assist system includes: an acceleration change pattern setting portion that sets an acceleration change pattern of a vehicle that is a pattern of change in acceleration of the vehicle that occurs while the vehicle travels on a road; and a drive plan generating portion that generates a drive plan for the vehicle based on the acceleration change pattern set by the acceleration change pattern setting portion. The drive assist system generates a drive plan satisfying three conditions, namely, a kinetic model of the vehicle, a passing point of each corner, and an acceleration change pattern, using a solution to two-point boundary-value problems.
    Type: Application
    Filed: October 12, 2011
    Publication date: July 25, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Minase, Koji Nakai
  • Publication number: 20130166161
    Abstract: A vehicle has a shift mechanism and a position detection device that detects an operation position of the shift mechanism. A transmission is brought to a power transmission state when an operation unit of the shift mechanism is operated to a driving position, and is brought to a power interrupt state when the operation unit is operated to a non-driving position. A driving force limitation process for reducing the driving force of an internal combustion engine is executed when it is determined that the non-driving position has been shifted to the driving position on the basis of the operation position of the operation unit as detected by the position detection device. The driving force limitation process is prohibited when it is determined that the vehicle is traveling and that the operation unit is not operated to any of the operation positions.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 27, 2013
    Inventors: Yuki Minase, Masashi Takagi, Motonari Ohbayashi, Hiroshi Shimada, Toshihiro Takagi
  • Publication number: 20130166162
    Abstract: A system includes: a shift mechanism; and a position detecting device detecting an operating position of the shift mechanism on the basis of an output signal of a sensor attached to the shift mechanism. An execution mode of a driving force limiting process that limits driving force is set on the basis of the operating position that is detected by the position detecting device. The driving force limiting process is executed on the basis of the execution mode of the driving force limiting process and a vehicle operation state. When it is determined that there is an abnormality in the position detecting device in a state that the driving force limiting process is not executed, setting the execution mode on the basis of the operating position of the shift mechanism is prohibited, and execution of the driving force limiting process is allowed on the basis of the vehicle operation state.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 27, 2013
    Inventors: Yuki Minase, Masashi Takagi, Motonari Ohbayashi, Hiroshi Shimada, Toshihiro Takagi
  • Publication number: 20130143716
    Abstract: A drive control apparatus for a vehicle includes: a control unit that controls drive force output from an engine in accordance with operation of an accelerator pedal; and a shift mechanism capable of selectively switching a shift position to a driving position or a non-driving position. The shift mechanism transmits the drive force to wheels when the shift position is in the driving position, and interrupts transmission of the drive force when the shift position is in the non-driving position. The control unit executes a drive force restriction process of reducing the drive force when the shift position is switched from the non-driving position to the driving position while the accelerator pedal is in an on state, and, when the switching is from a neutral position, the control unit changes a mode of reducing the drive force in accordance with a continuation time of the neutral position.
    Type: Application
    Filed: November 29, 2012
    Publication date: June 6, 2013
    Inventors: Shinya KODAMA, Motonari OHBAYASHI, Yuki MINASE, Masashi TAKAGI, Toshihiro TAKAGI
  • Publication number: 20130133455
    Abstract: Provided is a vehicle drive control apparatus including a shift mechanism configured to be able to selectively switch its shift position to either a driving position or a non-driving position; and a controller configured to control the drive force output from a motor serving as a drive source of the vehicle according to operation of an accelerator, to transmit the drive force from the motor to wheels when the shift position is in the driving position, and to stop the transmission of the drive force from the motor to the wheels when the shift position is in the non-driving position. The controller also performs drive force suppression processing to control the drive force, when the shift position is switched from the non-driving position to the driving position with the accelerator turned ON, such that the acceleration of the vehicle does not exceed an upper limit of acceleration.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Inventors: Shinya KODAMA, Motonari OHBAYASHI, Yuki MINASE, Masashi TAKAGI, Toshihiro TAKAGI
  • Patent number: 8442741
    Abstract: Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. An ECU is operative to set a reduction speed threshold value to determine a driver's braking intention on the basis of the correlation in the depression amount of an accelerator pedal, the depression amount of a brake pedal, and a travel state of a vehicle caused by the depression amounts of the accelerator pedal and the brake pedal. The ECU is further operative to change the reduction speed threshold value on the basis of the detected drive state to compare the travel state calculated on the basis of the detected drive state with the changed reduction speed threshold value to determine the driver's braking intention, thereby making it possible to determine the driver's braking intention without detecting the operation amount of a driver and to accurately estimate the driver's braking intention. This makes it possible to change the reduction control between executed and not executed, and to improve the drivability.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: May 14, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Minase, Haruhiko Katsumata, Michihito Shimada, Masashi Takagi, Tsutomu Miyazaki, Toshiya Oishi, Kenichi Okaya
  • Patent number: 8428845
    Abstract: Provided is a vehicle control apparatus which can prevent drivability from being deteriorated. The vehicle control apparatus comprises an ECU adapted to determine whether or not a brake is “off” or the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time during the execution of an engine torque reduction control process. When the ECU determines that the brake is “off” or that the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time, the ECU performs an engine torque restoration process of the engine. Therefore, the vehicle control apparatus can allow the continued execution and non-execution of the reduction control to be switched therebetween in accordance with the driver's travel intention, thereby making it possible to prevent the drivability from being deteriorated.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: April 23, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tsutomu Miyazaki, Toshiya Oishi, Masashi Takagi, Michihito Shimada, Yuki Minase, Kenichi Okaya, Hiroyuki Hanamura
  • Patent number: 8380420
    Abstract: Precise operation of an accelerator operating member (7) is more difficult to perform in a reversing operation of a vehicle (1) as compared with an advancing operation. Therefore, behavior of the vehicle (1) is not smooth and thus tends to be unnatural. In the reversing operation of the vehicle (1), driving force output from an internal combustion engine (2) is limited in accordance with vehicle acceleration (D). At this time, it is possible to regulate the driving force of the vehicle (1) in conformity to the actual operation of the accelerator operating member (7) by the driver. In addition, limitation of the driving force is not executed in the advancing operation of the vehicle (1). At this time, the vehicle (1) can be driven in a state in which the driving force is comparatively small. Therefore, it is possible to prevent the behavior of the vehicle (1) from being unnatural.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: February 19, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masashi Takagi, Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi
  • Publication number: 20130030675
    Abstract: Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU which determines, when the control permission condition is not established, not to execute the reduction control in the case that the accelerator opening degree is smaller than or equal to the accelerator threshold value or the vehicle speed is smaller than or equal to the vehicle speed threshold value, even if a depression of an accelerator pedal is detected and a depression of a foot brake pedal is detected. Therefore, the vehicle control apparatus can stop the torque reduction control to prevent the reduction of the engine output contrary to the intention of the driver in the case that an impact to the vehicle is small such that a load more than necessary is not applied to the vehicle even if the accelerator pedal and the brake pedal are both depressed by the driver.
    Type: Application
    Filed: April 7, 2010
    Publication date: January 31, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Minase, Michihito Shimada, Masashi Takagi, Tsutomu Miyazaki, Toshiya Oishi, Kenichi Okaya
  • Publication number: 20130030674
    Abstract: Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU that determines an acceleration/deceleration is caused by the disturbances and determines the control permission condition is not established, when an acceleration calculated by the variation of the wheel rotation speed detected by the wheel rotation speed sensor is more than or equal to a third deceleration threshold value, or less than or equal to a second deceleration threshold value. Therefore, the vehicle control apparatus can prohibit the reduction control of the driving force and can eliminate an influence of the variation of the wheel rotation speed caused by the disturbances when an unreasonable variation of the wheel rotation speed is detected as the acceleration, even under the condition that the vehicle travels on an extremely uneven road surface or a slippery road surface, thereby appropriately determining the deceleration of the vehicle.
    Type: Application
    Filed: April 7, 2010
    Publication date: January 31, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Minase, Michihito Shimada, Masashi Takagi, Tsutomu Miyazaki, Toshiya Oishi, Kenichi Okaya
  • Publication number: 20130024090
    Abstract: Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. An ECU is operative to set a reduction speed threshold value to determine a driver's braking intention on the basis of the correlation in the depression amount of an accelerator pedal, the depression amount of a brake pedal, and a travel state of a vehicle caused by the depression amounts of the accelerator pedal and the brake pedal. The ECU is further operative to change the reduction speed threshold value on the basis of the detected drive state to compare the travel state calculated on the basis of the detected drive state with the changed reduction speed threshold value to determine the driver's braking intention, thereby making it possible to determine the driver's braking intention without detecting the operation amount of a driver and to accurately estimate the driver's braking intention. This makes it possible to change the reduction control between executed and not executed, and to improve the drivability.
    Type: Application
    Filed: April 7, 2010
    Publication date: January 24, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Minase, Haruhiko Katsumata, Michihito Shimada, Masashi Takagi, Tsutomu Miyazaki, Toshiya Oishi, Kenichi Okaya
  • Publication number: 20130006490
    Abstract: Precise operation of an accelerator operating member (7) is more difficult to perform in a reversing operation of a vehicle (1) as compared with an advancing operation. Therefore, behavior of the vehicle (1) is not smooth and thus tends to be unnatural. In the reversing operation of the vehicle (1), driving force output from an internal combustion engine (2) is limited in accordance with vehicle acceleration (D). At this time, it is possible to regulate the driving force of the vehicle (1) in conformity to the actual operation of the accelerator operating member (7) by the driver. In addition, limitation of the driving force is not executed in the advancing operation of the vehicle (1). At this time, the vehicle (1) can be driven in a state in which the driving force is comparatively small. Therefore, it is possible to prevent the behavior of the vehicle (1) from being unnatural.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 3, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Takagi, Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi