Patents by Inventor Yasutaka TSUCHIDA

Yasutaka TSUCHIDA 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: 20190100214
    Abstract: A power control ECU controls electric power and engine power of a hybrid vehicle. The power control ECU includes a request driving force calculating portion that calculates a request driving force calculated in accordance with an accelerator operation amount, a travel driving force calculating portion that calculates a travel driving force as a value that belatedly follows the request driving force, and a dashpot control processing portion. The dashpot control processing portion sets a value of the request driving force as a value of a final request driving force used to calculate request engine power when a difference of the request driving force with respect to the travel driving force is less than a predetermined positive value, and sets a value that belatedly follows the request driving force when the difference is greater than or equal to the predetermined positive value.
    Type: Application
    Filed: August 23, 2018
    Publication date: April 4, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Shunya KATO, Yasutaka TSUCHIDA, Kenji UCHIDA, Takuro KUMADA
  • Patent number: 9682696
    Abstract: In the process of cranking and starting an engine by a motor, until a predetermined condition is satisfied, i.e., until a rotation speed Ne of the engine is equal to or higher than a predetermined rotation speed Nstmg and a crank angle ?cr of the engine is in a predetermined range of ?st1 to ?st2, the motor is controlled to increase the torque of the motor from value 0 to a positive specified torque Tst1 and keep the torque of the motor at the specified torque Tst1 by a rate process using a rate value ?Tst1. When the predetermined condition is satisfied, a rate value ?Tst2 is set to increase with an increase in satisfaction time rotation speed Neset that denotes the rotation speed Ne of the engine on satisfaction of the predetermined condition. The motor is then controlled to decrease the torque of the motor from the specified torque Tst1 by a rate process using a rate value ?Tst2.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: June 20, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yasutaka Tsuchida
  • Publication number: 20160304081
    Abstract: In the process of stopping an engine, upon satisfaction of an increase start condition that rotation speed Ne of the engine becomes equal to or lower than a predetermined rotation speed Nref1, a rate value Rup is set to have an increasing tendency with a decrease in minimum torque Tspmin (with an increase as the absolute value). A rate process using the set rate value Rup is performed to increase a motoring torque Tsp (motor torque command) from the negative minimum torque Tspmin.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 20, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasutaka TSUCHIDA
  • Publication number: 20160244047
    Abstract: In the process of cranking and starting an engine by a motor, until a predetermined condition is satisfied, i.e., until a rotation speed Ne of the engine is equal to or higher than a predetermined rotation speed Nstmg and a crank angle ?cr of the engine is in a predetermined range of ?st1 to ?st2, the motor is controlled to increase the torque of the motor from value 0 to a positive specified torque Tst1 and keep the torque of the motor at the specified torque Tst1 by a rate process using a rate value ?Tst1. When the predetermined condition is satisfied, a rate value ?Tst2 is set to increase with an increase in satisfaction time rotation speed Neset that denotes the rotation speed Ne of the engine on satisfaction of the predetermined condition. The motor is then controlled to decrease the torque of the motor from the specified torque Tst1 by a rate process using a rate value ?Tst2.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yasutaka TSUCHIDA