-
公开(公告)号：US20210180672A1
公开(公告)日：2021-06-17
申请号：US17184552
申请日：2021-02-24
Applicant: Hitachi Astemo, Ltd.
Inventor： Kenji Fukasawa , Kenji Kato
Abstract: A differential gear accommodated in a differential case, includes: an axial cylinder having a cylindrical shape fitted onto a shaft; an annular wall having an annular shape protruding from an outer circumferential surface of the axial cylinder; a gear protruding from the annular wall on one side with respect to an axial direction of the shaft; a reinforcing rib protruding from an outer circumferential surface of the annular wall; and a first recess formed by boring the annular wall and opening the other side with respect to the axial direction of the shaft.
-
公开(公告)号：US20210180645A1
公开(公告)日：2021-06-17
申请号：US17186175
申请日：2021-02-26
Applicant: Hitachi Astemo, Ltd.
Inventor： Kazuki Ohta , Kenichi Mori , Takahiro Nakayama
Abstract: A method for manufacturing a tube body made of fiber-reinforced plastic and used in a power transmission shaft is provided and the method includes: a generating step of disposing an uncured fiber-reinforced resin on a cavity surface of a mold and generating a resin body in a cylindrical shape; and a curing step of supplying a fluid inside the resin body and curing the resin of the resin body.
-
公开(公告)号：US20250147749A1
公开(公告)日：2025-05-08
申请号：US18836908
申请日：2022-08-24
Applicant: HITACHI ASTEMO, LTD.
Inventor： Tatsuaki NAGAI , Hideyuki SAKAMOTO , Yuji FUKUSHIMA , Tsutomu KANEKO , Takaaki NOKAIDO
IPC: G06F8/65
Abstract: An object of the present invention is to obtain an update management system that makes it possible to perform writing and switching of a program in an ECU configuration having redundancy while a vehicle is traveling, even when the ECU configuration does not have a double-sided memory structure. An update management system of the present invention is mounted on a vehicle and includes: a plurality of arithmetic operation devices; and an update management device that controls the plurality of arithmetic operation devices. The plurality of arithmetic operation devices include at least a first arithmetic operation device and a second arithmetic operation device. The update management device determines whether the second arithmetic operation device is executing a redundant process while the vehicle is traveling, and when determining that the second arithmetic operation device is not executing the redundant process, the update management device restricts execution of the redundant process by the first arithmetic operation device and updates a program stored in the second arithmetic operation device.
-
公开(公告)号：US20250146451A1
公开(公告)日：2025-05-08
申请号：US18835914
申请日：2022-11-10
Applicant: Hitachi Astemo, Ltd.
Inventor： Koichi TSUKIO
IPC: F02D41/20
Abstract: Provided is an electronic control device that drives and controls a fuel injection valve, the electronic control device increasing a boost current of a booster circuit only in a scene where boosting energy needs to be increased by short-time boosting, and reducing the boost current of the booster circuit in other scenes. The electronic control device including; a booster circuit; a boost setting controller that holds boost control information of the booster circuit; a boost controller that controls an energizing current of the booster circuit based on a current setting value from the boost setting controller; and a fuel injection circuit that supplies current to a fuel injection valve using voltage generated by the booster circuit, in which the boost setting controller reduces a boost speed of the booster circuit when information on engine temperature is higher than a predetermined value.
-
公开(公告)号：US20250137415A1
公开(公告)日：2025-05-01
申请号：US18836144
申请日：2022-03-03
Applicant: Hitachi Astemo, Ltd.
Inventor： Daichi KAWAKAMI , Noriaki SUMISHA , Junpei KOGAWA
Abstract: An electromagnetic valve driving device that controls an energization period to a solenoid coil provided in a fuel injection valve and causes the fuel injection valve to inject fuel a plurality of times during one combustion cycle of an internal combustion engine, the electromagnetic valve driving device includes: a storage that stores a correction amount map indicating a relationship between an energization pause period from a completion time of a first-half energization period, which is the energization period for a first fuel injection in the one combustion cycle, to a start time of a later-half energization period, which is the energization period for next fuel injection, and a correction amount for the later-half energization period; an energization period correction unit that obtains the correction amount from a command value of the energization pause period based on the correction amount map and corrects the later-half energization period based on the obtained correction amount; and an energization controller that energizes the solenoid coil based on a later-half correction energization period that is the later-half energization period corrected by the energization period correction unit.
-
Patent Agency Ranking
公开(公告)号：US20250136107A1
公开(公告)日：2025-05-01
申请号：US18834651
申请日：2022-07-28
Applicant: Hitachi Astemo, Ltd.
Inventor： Koichi UEMURA , Taku TAKAHAMA
Abstract: A vehicle control device that achieves preferred steering control characteristics of a driver while keeping lane tracing during lane keeping control. Included are: a lane shape detection unit that detects a lane shape around a vehicle; a steering torque detection unit that detects a steering torque of a driver who drives the vehicle; a lane keeping control unit that calculates a steering command for keeping within a lane based on the detected lane shape; and a steering control unit that controls vehicle steering based on the steering command from the lane keeping control unit, and the lane keeping control unit having a plurality of control characteristics including at least a first control characteristic and a second control characteristic selectable according to a preference of the driver, and selects the first or second control characteristic on the basis of switching information input in advance according to the preference of the driver.
-
公开(公告)号：US12285985B2
公开(公告)日：2025-04-29
申请号：US18014887
申请日：2021-07-14
Applicant: Hitachi Astemo, Ltd.
Inventor： Yoshifumi Kawasaki , Makoto Matsuura , Ryusuke Hirao
IPC: B60G17/0165 , B60G17/016 , B60G17/019
Abstract: A controller as a control apparatus controls a shock absorber of a control target wheel (a rear wheel) located in back of a detection target portion (a front wheel) of an unsprung acceleration sensor based on a detection value detected by the unsprung acceleration sensor on the front wheel side provided on a vehicle. In this case, the controller identifies a movement distance (a delay distance) from the detection target portion (the front wheel) and controls the shock absorber of the control target wheel (the rear wheel) located in back thereof based on the detection value of the unsprung acceleration sensor and a vehicle speed for each control period.
-
公开(公告)号：US20250128564A1
公开(公告)日：2025-04-24
申请号：US18692593
申请日：2022-09-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Mikio YAMASHITA
IPC: B60G17/08 , B60G17/0165
Abstract: A suspension system includes: a variable damper configured to use a damping force variable actuator to adjust communication of working fluid generated in a passage by a relative movement between a vehicle body and a wheel, to thereby adjust a damping force over a range of a soft characteristic to a hard characteristic; and a controller configured to control the damping force variable actuator. The variable damper further includes a frequency response unit configured to reduce the damping force for vibration at a specific frequency. The controller is configured to increase a change rate from a soft side to a hard side at a time of controlling the damping force to reach a target damping force when a frequency of the relative movement between the vehicle body and the wheel is lower than a first frequency set to the frequency response unit.
-
公开(公告)号：US12283847B2
公开(公告)日：2025-04-22
申请号：US18017911
申请日：2021-05-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Masahiro Hori , Masanori Sawahata
Abstract: Improving the coercive force of magnets used in a rotary electric machine by arranging magnets such that a q-axis side portion is located on an outer diameter side with respect to a d-axis side portion, and a magnet thickness Ti on an inner diameter side (d-axis side) of a rotor core is formed to be larger than a magnet thickness To on the outer diameter side (q-axis side) of the rotor core. An axial space is formed in the magnets such that when the lateral cross section of each of the magnets is divided into an outer diameter side region112o and an inner diameter side region112i in a manner that the lateral cross section areas are equal to each other with a circumference C around a rotation center as a boundary, and a space density of the axial space in the inner diameter side region112i is larger than a space density of the axial space in the outer diameter side region112o.
-
公开(公告)号：US20250126372A1
公开(公告)日：2025-04-17
申请号：US18702734
申请日：2022-07-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Hiroaki NAKATA
IPC: H04N25/532 , G06T7/55 , H04N23/67 , H04N23/73 , H04N23/90 , H04N25/535
Abstract: To provide a vehicle-mounted control device that suppress a ranging error by controlling an imaging start timing of a rolling-shutter type camera according to a situation when acquiring the three-dimensional information around the vehicle based on a pair of still images captured by a pair of the cameras including at least one rolling-shutter type camera. The vehicle-mounted control device communicates with a plurality of cameras including a first camera with a rolling-shutter type image sensor. The vehicle-mounted control device includes: a ranging unit that measures a distance to a ranging target using a plurality of images captured with a first camera and a second camera, the second camera being capable of capturing a same ranging target in at least part of an image capturing region of the first camera; and an exposure timing adjusting unit that adjusts an exposure timing of at least one of the first camera or the second camera based on a ranging position of at least one of the plurality of images.
-
-
-
-
-
-
-
-
-
Search Results
1753
records
(took 0.051 seconds)
