Patents by Inventor Kiichi Yamada

Kiichi Yamada 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).

  • Patent number: 4985836
    Abstract: A driving and driven wheel velocity are detected by wheel velocity sensors. A reference velocity is set on the basis of the driven wheel velocity. A slip value of the driving wheel on the basis of a difference between the driving wheel velocity and reference velocity. A target output torque of an engine is set in accordance with the slip value of the driving wheel. The target output torque is corrected in accordance with a lateral acceleration generated in a widthwise direction of the vehicle. An output of the engine is controlled to reach the corrected target output torque.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: January 15, 1991
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayuki Hashiguchi, Kiichi Yamada, Masayoshi Ito, Atsuhiro Kawano, Susumu Nishikawa, Takeshi Funakoshi, Shuji Ikeda
  • Patent number: 4985838
    Abstract: Driving and driven wheel velocities of a vehicle are detected by wheel velocity sensors, and a change in driven wheel velocities as a function of time is detected to obtain a driven wheel acceleration by the vehicle acceleration calculating section. A reference target torque is calculated on the basis of the driven wheel acceleration. A slip value of the driving wheels is calculated on the basis of the driving and driven wheel velocities, and a correction torque corresponding to the slip value is calculated every predetermined sampling time at TSn calculating section and TPn calculating section. The correction torque is substracted from the reference target torque to obtain a target engine torque. An engine output is controlled to obtain the target engine torque.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: January 15, 1991
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayuki Hashiguchi, Kiichi Yamada, Masayoshi Ito, Atsuhiro Kawano, Susumu Nishikawa, Takeshi Funakoshi, Shuji Ikeda
  • Patent number: 4970650
    Abstract: A first slip value detecting section detects slip values of the driving wheels on the basis of differences between the outputs from a selected driving wheel velocity and a reference velocity. And a second slip value detecting section detects slip values of the driving wheels on the basis of differences between the outputs from a driving wheel velocity detecting section and the reference velocity. And an engine output is controlled in accordance with the slip values detected by the first slip value detecting section. And braking force is controlled in accordance with the slip values detected by the second slip value detecting section.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: November 13, 1990
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayuki Hashiguchi, Kiichi Yamada, Masayoshi Ito, Atsuhiro Kawano, Susumu Nishikawa, Takeshi Funakoshi, Shuji Ikeda
  • Patent number: 4933857
    Abstract: This invention has traction control means having slip detecting means for detecting slipping of driving wheels, in accordance with an output signal from the driving wheel velocity detecting means and an output signal from the vehicle body velocity detecting means, and output rate calculating means for generating first instruction A for controlling engine output, in order to immediately decrease a slip rate, based on a slip start signal from the slip detecting means and for, when the slip rate is decreased to a predetermined value, generating second instruction B for controlling the engine to provide an output according to friction coefficient .mu. between a road surface and wheels, and engine output control means for controlling engine output on the basis of the first and second instructions and vehicle operating conditions.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: June 12, 1990
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayuki Hashiguchi, Kiichi Yamada, Susumu Nishikawa, Shuji Ikeda, Makoto Shimada, Takashi Dogahara
  • Patent number: 4926333
    Abstract: The slip values DVR, DVL of the right and left driving wheels are respectively detected. The left braking control means control the left driving wheel in accordance with a correction slip value DVFL of the left driving wheel calculated by the following equation on the basis of the slip values DVL, DVR and the coefficient KB set by the coefficient setting means.DVFL=KB.multidot.DVL+(1-KB).multidot.DVRThe right braking control means control the right driving wheel in accordance with a correction slip value DVFR of the right driving wheel calculated by the following equation on the basis of the slip values DVR, DVL and the coefficent KB:DVFR=KB.multidot.DVR+(1-KB).multidot.DVL.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: May 15, 1990
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Masayuki Hashiguchi, Kiichi Yamada, Masayoshi Ito, Atsuhiro Kawano, Susumu Nishikawa, Takeshi Funakoshi, Shuji Ikeda
  • Patent number: 4766950
    Abstract: In an air conditioner of vehicles including a fan for sending air, a cooling unit for cooling air sent by the fan, a heater for heating air sent by the fan, an air mix damper for adjusting the amount of air passing through the heater and cooled by the cooling unit, and a control unit for controlling an opening of the air mix damper in response to a cooling and heating load, a controller for an air conditioner of vehicles has a dehumidifying operation mode in which the opening of the air mix damper is adjusted to effect the air conditioning operation and an energy saving operation mode in which the duty ratio of turning on and off a compressor is changed to effect the air conditioning operation, and comprises a fan drive control unit for increasing the amount of wind in a region where the cooling and heating load is large.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: August 30, 1988
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kiichi Yamada, Akio Senoo, Jun Iimura, Ryosaku Akimoto, Nakaji Kawauchi