641 patents
Page 30 of 33
Utility
Parking assist apparatus
15 Mar 22
A parking assist apparatus is configured to execute parking assist control including steering angle automatic control, driving force automatic control and braking force automatic control, the parking assist apparatus being programmed to notify an occupant of an operation request requesting a driving operation of the vehicle to be performed for the parking assist control; and terminate the parking assist control and notify the occupant that the parking assist control is terminated when the driving operation corresponding to the operation request has not been performed by the occupant within a predetermined period.
Keisuke Oyama, Yuki Minase, Shinya Sannodo, Miyuki Omori, Norio Imai
Filed: 19 Jun 19
Utility
Vehicle Drive Device
10 Mar 22
A vehicle drive device includes: a rotary electric machine; a drive transmission mechanism provided in a power transmission path connecting a rotor shaft of the rotary electric machine and a wheel; a first hydraulic pump driven by a driving force transmitted through the power transmission path; a second hydraulic pump driven by a driving force source independent of the power transmission path; a first oil passage that supplies oil discharged from the first hydraulic pump to a rotor bearing that supports the rotor shaft such that the rotor shaft is rotatable; and a second oil passage that supplies oil discharged from the second hydraulic pump to an inner peripheral surface of the rotor shaft.
Ryohei INOUE
Filed: 27 Mar 20
Utility
Rotor manufacturing method
8 Mar 22
A rotor manufacturing method that includes stacking a plurality of electromagnetic steel sheets; and welding the plurality of electromagnetic steel sheets by moving a welding head relative to the plurality of electromagnetic steel sheets that are stacked in a state in which the welding head is inclined at a predetermined angle with respect to a stacking surface of the electromagnetic steel sheets so that a molten portion passes through at least one of the electromagnetic steel sheets.
Hideharu Ushida, Yoshihito Nagai
Filed: 28 Mar 17
Utility
Inverter module
8 Mar 22
In an inverter module (10) including a plurality of switching elements (11), a positive-polarity bus bar (14), a negative-polarity bus bar (15), and a plurality of output bus bars (16, 17, and 18), the plurality of output bus bars (16, 17, and 18) are disposed in a first direction (D1) in which upper-stage-side switching elements (11U) and lower-stage-side switching elements (11L) are placed side by side, and the positive-polarity bus bar (14) and the negative-polarity bus bar (15) are disposed in a second direction (D2) intersecting the first direction (D1).
Yutaka Hotta, Tomoyuki Suzuki, Kaoru Shimano, Yasuhiro Kume, Takeshi Ikeyama, Toshiyuki Fukuhara
Filed: 10 Sep 18
Utility
Vehicle Driving Device and Hybrid Vehicle
3 Mar 22
There are included a transmission mechanism that includes an input member driven by an engine and an output member drive-coupled to wheels and that can change a gear ratio between the input member and the output member; a clutch SSC that is interposed between an output shaft of the engine and the input member and can connect and disconnect power transmission between the output shaft of the engine and the input member of the transmission mechanism; and a control part that controls engagement and disengagement of the clutch SSC by electrical instructions.
Takahiro SUZUKI, Tadaaki WATANABE
Filed: 23 Jan 20
Utility
Control Device for Vehicle Drive Device
3 Mar 22
A vehicle drive device including an engagement pressure flow channel, a lubrication flow channel, a first pump having a discharge port connected to the engagement pressure flow channel, a second pump, and a flow channel control valve.
Masahiro NISHIU
Filed: 4 Feb 20
Utility
Differential Gear Mechanism and Method for Designing the Same
3 Mar 22
A differential gear mechanism in which when a plurality of contact lines between a gear tooth and a pinion tooth is defined on either a tooth surface of the gear tooth of a crown gear or a tooth surface of the pinion tooth of a pinion gear at a predetermined angle around an axis of the pinion gear, and the plurality of contact lines and a center line of a pinion tooth bottom surface of the pinion gear are projected onto a plane, including an axis of a pair of the crown gears, around the axis of the pinion gear, the center line of the pinion tooth bottom surface projected onto the plane includes an inclined line passing through a range between two of the contact lines which are selected from the plurality of contact lines projected onto the plane and by which a contact ratio is 1.0 or higher.
Tomoya OSADA, Yoshihiko NUKAI
Filed: 24 Mar 20
Utility
Semiconductor Device
3 Mar 22
A semiconductor device including a power supply circuit to supply power to a circuit formed on a main substrate equipped with a circuit module is made smaller in size.
Takanobu NARUSE
Filed: 4 Dec 19
Utility
Rotor for rotary electric machine and method of manufacturing rotary electric machine
1 Mar 22
A rotor for a rotary electric machine, wherein: magnet insertion holes are formed, each defined by the plurality of through holes communicating with each other in the axial direction across the plurality of magnetic sheets; and each of the permanent magnets is twisted about the center axis so as to be placed into a corresponding one of the magnet insertion holes, each having opposite ends in the axial direction that are shifted from each other by an angle corresponding to the constant angle, from outside in the axial direction.
Masayuki Ikemoto, Teppei Tsuda, Masafumi Sakuma
Filed: 22 Nov 17
Utility
Three-dimensional position estimation device and program
1 Mar 22
A three-dimensional position estimation device includes: a feature point detection unit detecting feature points from images captured by an image capturing device mounted in a moving object; a position-posture change amount calculation unit calculating change amounts of a position and a posture of the moving object; a feature point association unit associating feature points using a feature amount indicating a feature of the feature point; a three-dimensional position acquisition unit acquiring three-dimensional positions of the feature points and acquires a position and a posture of the image capturing device; a graph structure data generation unit generating graph structure data configured with feature point and image nodes, and a feature point and image capturing edges; an error function setting unit setting first and second error functions; and a graph structure data optimizing unit optimizing the three-dimensional position and the position and the posture of the image capturing device.
Shoji Asai, Shu Asami, Kazutaka Hayakawa
Filed: 30 Jan 20
Utility
Periphery monitoring device
1 Mar 22
A peripheral monitoring device according to one embodiment includes an acquirer configured to acquire a first rear image of a vehicle at first timing, the vehicle including a first coupler device which couples a towed vehicle; and an image processing unit configured to superimpose first identification information on the first rear image at second timing being after the first timing, the first identification information representing a position of the first coupler device at the second timing, and to display, on a display screen, the first rear image on which the first identification information has been superimposed, the display screen configured to be installed in the vehicle.
Tetsuya Maruoka, Itsuko Fukushima, Kazuya Watanabe, Kinji Yamamoto, Takashi Hiramaki, Naotaka Kubota
Filed: 30 Oct 17
Utility
Weight Estimation Device, Weight Estimation Method and Non-transitory Storage Medium for Vehicle
24 Feb 22
A weight estimation device for a vehicle includes a storage unit storing a weight calculation information indicating a correspondence between an internal pressure value of an air spring supporting a vehicle body and a vehicle height serving as a height of the vehicle body from a base, a measured value acquisition unit acquiring a measured internal pressure value and a measured vehicle height, an internal pressure value calculation unit calculating a corrected internal pressure value of the air spring by deducting or adding a corrected value from or to the measured internal pressure value in a case where the measured internal pressure value is greater or smaller than the internal pressure value of the weight calculation information which corresponds to the measured vehicle height, and a weight calculation unit calculating a weight of a supported body, including the vehicle body, based on the corrected internal pressure value.
Masahito KIZU, Ken OGUE, Motofumi TAKAHARA, Toshihisa HABIRO
Filed: 28 Jul 21
Utility
Hybrid Drive Device
24 Feb 22
A hybrid drive device includes: a rotor; a transmission; and a case, in which a rotor support member that supports a rotor of the rotary electric machine includes an annular member that faces an end wall portion of the case, the end wall portion includes a first tubular portion that protrudes in an axial direction from an inner periphery toward the transmission, and a second tubular portion that protrudes in the axial direction toward the transmission so as to surround the first tubular portion, the annular member includes a tubular portion that protrudes in the axial direction from an inner periphery toward an engine, an inner side radial bearing is disposed between the first transmitting shaft and an inner peripheral surface of the first tubular portion of the end wall portion, a clearance is formed between an outer peripheral surface of the first tubular portion of the end wall portion and an inner peripheral surface of the tubular portion of the annular member, and an outer side radial bearing is disposed between an outer peripheral surface of the tubular portion of the annular member and an inner peripheral surface of the second tubular portion of the end wall portion.
Shigeki IDEUE, Takeru MORITA, Kenji DOZONO, Tatsuya OKISHIMA, Masashi IKEMURA
Filed: 8 Jan 20
Utility
Motor Control Device
24 Feb 22
A motor control device according to an embodiment includes a hardware processor configured to: calculate a first torsion torque generated by a motor shaft according to fluctuation of an engine torque based on a difference between a motor angle as a rotation angle of the motor shaft and a shaft angle as a rotation angle of a transmission shaft of a transmission on the downstream side of a damper; calculate a first vibration damping torque to be output by a motor generator to damp vibration of the motor shaft based on the first torsion torque and a drive state value indicating a drive state of an engine; and output a motor torque command value to be provided to the motor generator based on the first vibration damping torque.
Hirotaka MIZUGUCHI, Satoshi KOKUBO, Yoichi OI, Tomoki INAGAKI
Filed: 13 Dec 19
Utility
Electric Current Detection Apparatus
24 Feb 22
An electric current detection apparatus, the electric current detection apparatus is configured to detect an electric current flowing in a solenoid configured to be electrified by a PWM control, the apparatus includes a switch, an electric current value detection portion configured to detect a first electric current value at a first timing corresponding to a timing when the switch transitions from a closed state to an open state, the electric current value detection portion being configured to detect a third electric current value at a third timing, and a second electric current value calculation portion configured to calculate a second electric current value on the basis of the first electric current value and the third electric current value, the second electric current value being an electric current value of the electric current at the second timing.
Kouki OJIMA, Satoshi SAKAI, Toshihisa HABIRO, Yuta KAWAI
Filed: 26 Jul 21
Utility
Vehicle drive device
22 Feb 22
A vehicle drive device includes: rotary electric machine; rotor support member; friction engagement device disposed at position on inner side in radial direction with respect to a rotor and at which friction engagement device overlaps rotor as viewed in radial direction along radial direction; and a first and second bearing that rotatably support rotor support member.
Kenji Omote, Keishi Morita, Kenta Tamabayashi, Hiroshi Ishiyama
Filed: 29 Jan 19
Utility
Valve opening and closing timing control device
22 Feb 22
A valve opening and closing timing control device includes: a drive-side rotary body rotating synchronously with a crankshaft; a driven-side rotary body provided inside the drive-side rotary body coaxially and rotating integrally with a camshaft; advance and retard chambers formed between the drive-side and driven-side rotary bodies; a lock mechanism switchable between a lock state and a lock release state; a valve unit including a fluid supply pipe into which fluid is supplied and a spool movable along a direction of the rotation axis, and controlling supply of the fluid to and from the lock mechanism, and the advance and retard chambers; and a tubular valve case having an internal space inside the driven-side rotary body and housing the valve unit in the internal space.
Kazuo Ueda, Yuji Noguchi, Hirokazu Nonogaki
Filed: 3 Dec 20
Utility
Image feature amount output device, image recognition device, the image feature amount output program, and image recognition program
22 Feb 22
An image processing device converts an image that is a recognition object image to high-resolution, medium-resolution, and low-resolution images.
Hideo Yamada, Kazuhiro Kuno, Masatoshi Shibata, Shuichi Enokida, Hakaru Tamukoh
Filed: 31 Jan 18
Utility
Valve device
22 Feb 22
A valve device includes: a housing having an inner peripheral wall defining a cylindrical space therein; a fluid introduction path formed in the housing to communicate with the cylindrical space; fluid discharge paths formed in the housing to communicate with the cylindrical space; a valve body accommodated in the cylindrical space and formed of a spherical body having a communication path communicating the fluid introduction path with at least one of the fluid discharge paths; a valve body rotating mechanism rotating the valve body about an axis of the cylindrical space; a protrusion protruding from the inner peripheral wall toward the axis of the cylindrical space to surround at least a portion of an opening in the fluid introduction path; and a seal member provided on the protrusion and capable of abutting on the valve body.
Koichi Kashiwagi, Toshihide Yamada, Nobutaka Kiku
Filed: 20 Sep 19
Utility
Electric Drive Device for Vehicle
17 Feb 22
In an electric drive device for a vehicle, when a distance between two portions of a transfer shaft supported by two supporting parts of a drive housing and a distance between two portions of input shaft supported by two supporting parts of power transfer housing each are a first distance, one of the input shaft and the transfer shaft that has a longer first distance is one shaft, other one of the input shaft and the transfer shaft that has a shorter first distance is the other shaft, one of the drive housing and the power transfer housing that supports one shaft is one housing, and other one of the drive housing and the power transfer housing that supports the other shaft is the other housing, the one shaft extends toward the other shaft, crossing a first central axis, and a coupling part is accommodated in the other housing.
Takuya YOSHIMI, Daisuke SAITO
Filed: 13 May 20