Patents Assigned to Mitsubishi Jidosha Kogyo Kabushiki Kaisha
  • Patent number: 11958470
    Abstract: A vehicle control device includes a motor, a transmission unit, a temperature sensor that detects a temperature of the motor, a vehicle speed sensor that detects a vehicle speed, and a controller. The controller controls switching of the transmission unit based on a first temperature determined in accordance with the vehicle speed as the temperature at which the transmission unit is switched from connection to disconnection, and a second temperature determined in accordance with the vehicle speed as the temperature at which the transmission unit is switched from the disconnection to the connection. The first temperature decreases as the vehicle speed increases. The controller switches the transmission unit from the connection to the disconnection based on the first temperature, and then switches the transmission unit from the disconnection to the connection based on the second temperature.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventor: Katsunori Yuge
  • Publication number: 20240100961
    Abstract: This disclosure relates to a driving force adjusting device including a pair of electric motors (1) that drives left and right wheels (5) of a vehicle, a differential mechanism (3) that provides the left and right wheels (5) with a torque difference, and left and right drive shafts (4) that transmits driving force from the differential mechanism and to the left and right wheels (5), the driving force adjusting device having four elements and two degree of freedom. In this driving force adjusting device, inertia moments (JML,JMR) on paths from the pair of electric motors (1) to the left and right wheels (5) are set to values such that a resonance frequency (f) of the driving force adjusting device when the vehicle is turning comes to be larger than a yaw resonance frequency (fyaw) of the vehicle.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 28, 2024
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yutaro OKAMURA, Ryota TAKAHASHI, Naoki TAKAHASHI
  • Patent number: 11912133
    Abstract: A vehicle drive unit includes an internal combustion engine (21), an electromotive unit (23) having a first electric motor (31) and a second electric motor (33), an inverter (27) disposed above the electromotive unit, a first harness (41) that electrically connects the inverter and a first terminal block (61) of the first electric motor, and a second harness (42) that electrically connects the inverter and a second terminal block (62) of the second electric motor. The first electric motor and the second electric motor are disposed in a vehicle front-rear direction. Of the first electric motor and the second electric motor, one electric motor is disposed on the front side in the front-rear direction, and the other electric motor is disposed on the rear side in the front-rear direction. The other electric motor is offset upward in the up-down direction with respect to the one electric motor.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: February 27, 2024
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Shoji Tanizawa, Shinsuke Horibe, Masaharu Yamagishi, Chika Takaba, Toshihiko Ando, Kohei Higashitani, Kenji Umemura
  • Patent number: 11878587
    Abstract: A display device 30 displays information of variables that reflect a state of a vehicle 10. The display device 10 includes: a first display region 31 that displays a scale of a first variable; a second display region 32 that is provided to be aligned with the first display region 31 and displays a scale of a second variable; a first pointing portion 42 that points, in the first display region 31, the first variable in accordance with the state of the vehicle 10; a first strip-shaped image 43 that is displayed between a pointed position of the first pointing portion 42 and a start point S1 of the first display region 31; a second pointing portion 52 that points, in the second display region 32, the second variable in accordance with the state of the vehicle 10; and a second strip-shaped image 53 that is displayed between a pointed position of the second pointing portion 52 and a start point S2 of the second display region.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 23, 2024
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yuichi Kamei, Eiji Yamashita, Toyohito Hirano, Reoto Ueda, Jinichi Ohta, Takayuki Okuji
  • Patent number: 11813940
    Abstract: A display device (40) that displays information of a plurality of variables that reflect a state of a vehicle, the display device (40) including: a first meter image (41) including a first scale displaying (42) part that displays a scale of a first variable included in the plurality of variables and an indicating part (43) that indicates the first variable that varies with the state of the vehicle and rotating the first scale displaying part (42) in accordance with variation of the first variable, fixing the position of the indicating part (43); and a second meter image (44) including a second scale displaying part (45) that displays a scale of a second variable included in the plurality of variables and a displaying part (46) that displays the second variable that varies with the state of the vehicle, wherein the first meter image (41) and the second meter image (44) are adjacent to each other.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: November 14, 2023
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Jinichi Ohta, Yuichi Kamei, Takayuki Okuji, Toyohito Hirano, Reoto Ueda, Akinori Kawasaki
  • Publication number: 20230358306
    Abstract: A case for a vehicle drive device includes a first case part having a first support part, a second case part having a first part, and a third case part having a second part. The second case part is joined to the first case part on an axial-direction first side, the third case part is joined to the first case part on an axial-direction second side, a first rotating body and a first input member are placed between the first support part and the first part in an axial direction, in a supported state by the first support part and the first part, and a second rotating body and a second input member are placed between the first support part and the second part in the axial direction, in a supported state by the first support part and the second part.
    Type: Application
    Filed: September 24, 2021
    Publication date: November 9, 2023
    Applicants: AISIN CORPORATION, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yuki YANAGIHARA, Takayoshi KATO, Isao FUJISHIMA, Naoki TAKAHASHI, Kiminobu TERAO, Takuya OGASAWARA, Yosuke MORIMOTO
  • Patent number: 11807108
    Abstract: A vehicle control device that calculates a vehicle body velocity of a vehicle is disclosed. Sensors (18, 19) that obtain respective wheel velocities of left and right wheels (5) arranged along the vehicle width direction are provided. A calculator (11) that calculates, when the left and right wheels (5) are not slipping, an average value (A) of the wheel velocities as the vehicle body, and calculates, when at least one of the left and right wheels (5) is slipping, the vehicle body velocity on the basis of the average value (A) and a lower velocity value (B) between the wheel velocities is provided. With this configuration, the precision in calculating the vehicle body velocity is enhanced, suppressing a cost rise.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: November 7, 2023
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Wataru Tanooka, Yutaro Okamura, Ryota Takahashi, Naoki Takahashi
  • Patent number: 11802614
    Abstract: A vehicle drive device is provided that can suppress the increase in dimension in the radial direction while ensuring a sufficient speed reduction ratio. Two driving force sources are arranged on a first axis, two output members are arranged on a second axis, two counter gear mechanisms are arranged on a third axis. A planetary gear mechanism is configured to transmit rotation from the two counter gear mechanisms to the output members, and is disposed so as to overlap with both of the two counter gear mechanisms as seen in an axial direction along and axial direction.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: October 31, 2023
    Assignees: AISIN CORPORATION, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Toshihisa Mizutani, Kenta Kataoka, Taiki Owari, Hiroaki Osanai, Daiki Suyama, Hiroshi Kato, Yuki Yanagihara, Naoki Takahashi, Kiminobu Terao, Takuya Ogasawara, Yosuke Morimoto
  • Publication number: 20230339454
    Abstract: A vehicle control device for a hybrid vehicle includes: an engine and an electric motor; a transaxle including a power transmission path connecting the engine and the electric motor with a driving wheel; a temperature detection unit configured to detect a temperature of the transaxle; and a control unit configured to switch between a series operation mode in which the electric motor is driven for traveling by electric power generated by rotation of the engine and a parallel operation mode in which the engine and the electric motor are driven for traveling. When the temperature of the transaxle is equal to or higher than a first predetermined temperature, the control unit performs a first control of giving priority to the traveling in the parallel operation mode.
    Type: Application
    Filed: May 26, 2022
    Publication date: October 26, 2023
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Akihiro SHIINO, Ryo SHIMIZU, Norihiko IKOMA
  • Publication number: 20230322089
    Abstract: A control device (10) for a vehicle (1) equipped with two electric motors (2) includes: a first calculation unit (11) that calculates a required torque value of each of left and right axles (4L, 4R); a second calculation unit (12) that calculates an equivalent moment of inertia of each of the left and right axles (4L, 4R); a third calculation unit (13) that calculates an estimated angular acceleration of each of left and right wheels (5) based on the two required torque values calculated by the first calculation unit (11) and the two equivalent moments of inertia calculated by the second calculation unit (12); and a determination unit (14) that compares actual angular accelerations of the left and right wheels (5) with the estimated angular accelerations calculated by the third calculation unit (13) to perform off-ground determination for each of the left and right wheels (5).
    Type: Application
    Filed: September 24, 2021
    Publication date: October 12, 2023
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yutaro OKAMURA, Wataru TANOOKA, Ryota TAKAHASHI, Naoki TAKAHASHI
  • Patent number: 11760204
    Abstract: The disclosed vehicle braking device controls a hydraulic brake system (2) and a regeneration brake system (3) mounted on a vehicle (1) in accordance with an acceleration value and a brake value, and includes a first divider (11), a second divider (12), and a controller (13). The first divider (11) divides a driver demand torque set according to the accelerator value into a target coast torque and a remaining torque. The second divider (12) divides a sum of a deceleration torque set according to the brake value and the target coast torque divided by the first divider (11) into a hydraulic-brake demand torque and a regeneration-brake demand torque. The controller (13) controls the hydraulic brake system (2), using the hydraulic-brake demand torque, and controls the regeneration brake system (3), using a total regeneration brake torque calculated from the remaining torque and the regeneration-brake demand torque.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: September 19, 2023
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Naoki Miyamoto, Takanori Sugimoto, Norihiko Ikoma
  • Publication number: 20230286390
    Abstract: A vehicle travel control device calculates torques required for a motor in a first regenerative control mode and a second regenerative control mode based on an accelerator opening degree and a vehicle speed, selects torque required for the motor suitable for the first regenerative control mode or the second regenerative control mode from among the calculated torques required for the motor, and limits a change rate of the torque required for the motor when the selected torque required for the motor changes beyond a predetermined change rate by switching from the first regenerative control mode to the second regenerative control mode.
    Type: Application
    Filed: July 14, 2021
    Publication date: September 14, 2023
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Takeshi TOYODA, Toshifumi MIZUI
  • Patent number: 11738726
    Abstract: A vehicle brake system (1) includes a first control device (10) and a second control device (11) that respectively include a master controller (30), a first sub-controller (40), and a second sub-controller (41) that are connected to one another. Each of the master controller (30), the first sub-controller (40), and the second sub-controller (41) includes a braking force calculation unit that calculates braking force of electric brakes (16a to 16d), and a determination unit that compares braking force calculation results of the controllers to determine whether itself is normal. The determination unit includes an output block section that blocks, when the determination unit determines that any one of the controllers is not normal, an output of the controller that is determined to be not normal.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 29, 2023
    Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION, HITACHI ASTEMO UEDA CO., LTD.
    Inventors: Hiromasa Satoh, Toshihiro Obika, Yusuke Koga, Yasushi Aoki, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki, Yui Masuda
  • Patent number: 11719197
    Abstract: In a fuel tank system, a control unit diagnoses a failure of a fuel storage unit and a processing unit. The fuel storage unit includes a vapor passage through which a fuel tank and a sealing valve are communicated with each other, a first pressure detection unit, and a second pressure detection unit disposed at a position different from the first pressure detection unit. The control unit specifies a presence or an absence of a clogging of the vapor passage based on a first pressure value detected by the first pressure detection unit and a second pressure value detected by the second pressure detection unit when the pressure in the fuel tank is changed by the pressure generation unit in a condition that the sealing valve is controlled to be opened.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: August 8, 2023
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Kyosuke Uematsu, Takuya Ohshima, Hideo Matsunaga
  • Patent number: 11708786
    Abstract: An auxiliary chamber type internal combustion engine includes a main chamber, an auxiliary chamber, a plurality of connecting passages connecting the main chamber with the auxiliary chamber, and an ignition plug configured to ignite a mixture introduced into the auxiliary chamber. The plurality of connecting passages include a first connecting passage having a first injection port and a second connecting passage having a second injection port. A flame generated in the auxiliary chamber is injected into the main chamber through the first and second injection ports. The first injection port is configured such that the flame propagates along a ridge line at which the plurality of inclined surfaces of the cylinder head intersect. The second connecting passage extends in a direction oriented to the piston with respect to the first connecting passage when viewed from a direction perpendicular to the cylinder axial direction.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: July 25, 2023
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yoshiya Inoue, Dai Tanaka, Takayuki Shirota, Issei Nonaka, Ryota Asakura
  • Publication number: 20230182579
    Abstract: In a drive control device for an electric vehicle that includes brake devices (30a to 30d) provided for each of left and right wheels of the vehicle, a front motor (4) and a rear motor (6) for driving and regeneratively braking the wheels of the vehicle, a vehicle motion control unit (37) for calculating a brake application demanded amount corresponding to a yaw moment application amount to be applied to the vehicle based on the traveling state of the vehicle, a brake ECU (31) for controlling the brake devices (30a to 30d) on the left and right sides independently of each other based on the brake application demanded amount to control the yaw moment of the vehicle, and a motor torque control unit (39) for controlling driving torques and regenerative braking torques of a front motor (4) and a rear motor (6), the motor torque control unit (39) executes correction for increasing the driving torque or reducing the regenerative braking torque according to the increase of the braking torques of the brake devices (3
    Type: Application
    Filed: July 14, 2021
    Publication date: June 15, 2023
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Ryosuke KOGA, Akira MARUYAMA, Tetsuya FURUICHI
  • Publication number: 20230158890
    Abstract: A vehicle control device includes a drive source mounted on a vehicle, a differential device configured to distribute a driving force generated by the drive source to a right drive wheel and a left drive wheel, a speed sensor configured to detect a rotation speed of the drive source, a pair of wheel speed sensors configured to detect rotation speeds of the right drive wheel and the left drive wheel, and a control device configured to set an index value having a value obtained by multiplying the rotation speed of the drive source by a predetermined coefficient in a case that at least one of the pair of wheel speed sensors fails, and to control torque output from the drive source based on the index value.
    Type: Application
    Filed: May 19, 2021
    Publication date: May 25, 2023
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yuki MAEDA, Ryo SHIMIZU
  • Patent number: 11648917
    Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 16, 2023
    Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, NTN CORPORATION, HITACHI ASTEMO, LTD., HITACHI ASTEMO UEDA CO., LTD.
    Inventors: Hiromasa Satoh, Toshihiro Obika, Yusuke Koga, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki, Yui Masuda
  • Publication number: 20230124316
    Abstract: A connector includes a housing having a fitting part that is inserted and fitted into a counterpart fitting part, a shield shell having a shell flange part disposed opposite a wall surface of a counterpart wall body with an interval therebetween, a first watertight member between the fitting part and the counterpart fitting part, and a second watertight member that is crushed between the shell flange part and a wall surface of the counterpart wall body. The housing has a housing flange part with an outer peripheral surface thereof disposed inside an outer peripheral edge of the shell flange part and outside an inner edge of the shell flange part, and with a contact surface with an annular shape in contact with the wall surface of the counterpart wall body.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 20, 2023
    Applicants: Yazaki Corporation, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Satoki MASUDA, Hikaru OI, Tomohiro JINTOKU, Kanato KIMURA, Masaharu YAMAGISHI, Kazuhiro OKAMURA
  • Patent number: D1009899
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: January 2, 2024
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Reoto Ueda, Yuichi Kamei