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公开(公告)号：US20230291260A1
公开(公告)日：2023-09-14
申请号：US18017953
申请日：2021-08-04
Applicant: Hitachi Astemo, Ltd.
Inventor： Masanori SAWAHATA , Masahiro HORI , Hideaki GOTO , Takaki ITAYA
Abstract: An object of the present invention is to provide a rotary electric machine in which damage of a magnet is suppressed and cooling performance of the magnet is improved.
The present invention includes a rotation shaft 21, a rotor 20, and core end members 204 and 205 connected to end portions of the rotor 20. The rotor 20 includes a magnet 201, a rotor core 200, and interposed members 301a and 301b interposed between the magnet 201 and the rotor core 200. In the rotor core 200, a magnet insertion hole 202 for disposing the magnet 201 and flux barriers 203a and 203b are formed. The rotation shaft 21 is provided with a first flow path 21a through which a refrigerant flows. The core end members 204 and 205 are provided with a second flow path 504a joining the first flow path 21a and the flux barrier 203a. The interposed members 301a and 301b are provided along the axial direction such that a cooling flow path for the refrigerant is formed on both facing surfaces of the central portion of the magnet 201 in the axial direction, which are long sides of a rectangular cross section.-
公开(公告)号：US20230287955A1
公开(公告)日：2023-09-14
申请号：US18319087
申请日：2023-05-17
Applicant: Hitachi Astemo, Ltd.
Inventor： Gota NAKANO
IPC: F16F9/512
CPC classification number: F16F9/5126 , F16F2222/12
Abstract: A damping force generation mechanism with a flow path inside thereof, through which a fluid flows, includes: a valve body part including an elastically deformable elastic part and a pressure receiving part receiving pressure of the fluid; a valve seat part provided around a flow path port of the flow path, with which the pressure receiving part is able to make contact; and a support part provided in a constituent part constituting at least a part of a back pressure chamber applying a back pressure toward the valve seat part to the valve body part, the support part supporting an outer edge portion of the elastic part.
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公开(公告)号：US11758667B2
公开(公告)日：2023-09-12
申请号：US17595667
申请日：2020-05-15
Applicant: Hitachi Astemo, Ltd.
Inventor： Masato Saito , Michihito Watarai
IPC: H05K5/00 , B60R16/023 , H05K5/03
CPC classification number: H05K5/0056 , B60R16/0238 , B60R16/0239 , H05K5/0017 , H05K5/03
Abstract: An electronic control unit (1) includes a connector (2), the connector includes a connector main body (21) and a plurality of terminals (23), the connector main body includes an attachment surface (24) and a seal arrangement portion (210) on a surface (25), the seal arrangement portion includes a first seal arrangement portion (211) formed in an arrangement direction of the terminals, and a second seal arrangement portion (212) that is continuous with both end portions (213) of the first seal arrangement portion and is inclined toward the electronic control board side as it goes toward the other end side facing one end side of an electronic control board (6), the first seal arrangement portion includes a plurality of predetermined portions (2112) formed so as to be directed toward the electronic control board side from a center side of the first seal arrangement portion toward both end sides of the first seal arrangement portion at both end portions of the first seal arrangement portion, the cover (3) includes a plurality of bent portions (312) formed so as to be directed toward the electronic control board side from a center side of the cover toward both end sides of the cover, and each of the predetermined portions is in contact with each of the bent portions.
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204.发明授权公开(公告)号：US11754016B2
公开(公告)日：2023-09-12
申请号：US17908267
申请日：2021-03-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Kazuya Saito , Hiroshi Miyamoto
CPC classification number: F02D41/402 , F02D41/008 , F02D2041/389
Abstract: A fuel injection control device and a fuel injection control method for an internal combustion engine according to the present invention correct a basic pulse width by a cylinder-specific correction value that is based on injection variations among fuel injection valves to specify a cylinder-specific pulse width, determine whether or not a split number is acceptable based on a minimum pulse width and a pulse width per one injection calculated from the cylinder-specific pulse width and the split number to modify the split number based on a result of the acceptance determination, modify an acceptance determination reference value which is used in the acceptance determination based on the correction value for each cylinder, and execute split injection based on the split number, the basic pulse width, and the correction value for each cylinder.
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205.发明授权公开(公告)号：US11745706B2
公开(公告)日：2023-09-05
申请号：US17436778
申请日：2020-01-30
Applicant: Hitachi Astemo, Ltd.
Inventor： Satoshi Nakagawa
IPC: B60W60/00 , B60T8/1755 , B60W10/188 , B60W10/20 , B60W30/045 , B60W30/12 , B60W30/14 , B60W40/103 , B60W40/109 , B60W40/114
CPC classification number: B60T8/17552 , B60W10/188 , B60W10/20 , B60W30/045 , B60W30/12 , B60W30/143 , B60W40/103 , B60W40/109 , B60W40/114 , B60W60/001 , B60T2230/02 , B60T2250/03 , B60W2520/125 , B60W2520/14 , B60W2520/20
Abstract: In motion control in the present invention, operation amounts relating to braking and drive are set as a control command when a difference between a physical quantity relating to a target vehicle attitude which is based on a target trajectory and a physical quantity relating to a linear model vehicle attitude which is based on a linear model of a vehicle exceeds a threshold value, operation amounts relating to braking and steering are set as the control command when the difference is equal to or smaller than the threshold value, and an attitude of the vehicle in a yaw direction is controlled based on the control command.
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Patent Agency Ranking
公开(公告)号：US20230273251A1
公开(公告)日：2023-08-31
申请号：US18015441
申请日：2021-07-12
Applicant: Hitachi Astemo, Ltd.
Inventor： Soshi SHIMOMURA , Yasuhiro IKEDA , Yutaka UEMATSU , Hideyuki SAKAMOTO
Abstract: A communication device includes: a transmitting circuit that repeatedly outputs a first prescribed signal to a transmission path at a prescribed cycle; a receiving circuit that receives a second prescribed signal repeatedly output at the prescribed cycle from another communication device via the transmission path; a waveform equivalence processing unit that performs waveform equivalence processing on the signal received by the receiving circuit; a holding unit that holds parameters of the waveform equivalence processing; a storage unit that stores information on a signal propagation speed in the transmission path, duration of a prescribed cycle, and a transmission rate; and an abnormality position determining unit that calculates a distance to a position of an abnormality in the transmission path using information on the parameter caused by the abnormality of the transmission path among the parameters and the information stored in the storage unit.
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公开(公告)号：US20230271471A1
公开(公告)日：2023-08-31
申请号：US18014253
申请日：2021-07-06
Applicant: Hitachi Astemo, Ltd.
Inventor： Masatoshi YAMAHATA , Ryusuke HIRAO , Yuki YOSHIDA
IPC: B60G17/018 , B60G17/0165
CPC classification number: B60G17/0182 , B60G17/0165 , B60G2400/208 , B60G2500/10 , B60G2401/28 , B60G2600/60 , B60G2400/0511 , B60G2400/0512 , B60G2400/252 , B60G2400/102 , B60G2400/821
Abstract: A controller estimates a state of a vehicle based on a wheel speed sensor provided on the vehicle, and outputs a control signal to a shock absorber provided between a wheel and a vehicle body according to the estimated state of the vehicle. The controller uses information of a sensor of an in-vehicle apparatus other than an apparatus dedicated to the shock absorber as an observed value in the estimation of the state of the vehicle. In other words, the controller uses sensor information of a navigation apparatus corresponding to the in-vehicle apparatus other than the shock absorber, more specifically, gyro information meaning information of a gyro sensor mounted on the navigation apparatus as the observed value in the estimation of the state of the vehicle.
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公开(公告)号：US20230266405A1
公开(公告)日：2023-08-24
申请号：US18011461
申请日：2021-02-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Yasuo SHIMA , Keishi KOMORIYAMA , Yoichiro KOBAYASHI
IPC: G01R31/54
CPC classification number: G01R31/54
Abstract: Poor opening is detected with certainty and reliability with respect to a ground line of an integrated circuit device regardless of the connection state of a load and the operating state of a drive circuit. In an integrated circuit device 10, a drive circuit 30 switches between conduction and interruption of a load current using switch elements 40 and 45. The ground line 31 is grounded via the GND terminal 32 to the common ground provided outside the integrated circuit device 10 and is connected to the drive circuit 30. The ground line 21 is grounded to the common ground via the GND terminal 22 and is connected to the control circuit 20. The diagnostic current supply circuit 90 supplies a predetermined diagnostic current to the ground line 31. The rectifying elements 61 and 62 are connected between the ground line 21 and the ground line 31. The diagnostic circuit 70 measures the potential difference between the ground line 31 and the ground line 21 and compares the potential difference with the predetermined comparison voltage 73 to diagnose the grounding state of the ground line 31.
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公开(公告)号：US20230260147A1
公开(公告)日：2023-08-17
申请号：US18003575
申请日：2021-07-12
Applicant: Hitachi Astemo, Ltd.
Inventor： Hideaki KIDO , Tatsuhiko MONJI , Hirotomo SAI
CPC classification number: G06T7/70 , G06V10/761
Abstract: Provided is a signal processing device with which, even when detection objects differ among a plurality of sensors, it is possible to correctly obtain the relationship between a non-shared detection object and a detection object that is shared after fusion.
The present invention: stores a first positional relationship (for example, inside and outside a host vehicle lane) between a first object (for example, a vehicle ahead) recognized on the basis of an image captured by an imaging device 301, and a second object (for example, a white line); obtains the position of the first object on the basis of information about the first object recognized on the basis of information obtained from a sensor differing from the imaging device 301, and of information about the first object recognized on the basis of the image captured by the imaging device 301; obtains a second positional relationship (for example, inside and outside the host vehicle lane) between the obtained first object, and the second object recognized on the basis of the image captured by the imaging device 301; and compares the first positional relationship and the second positional relationship to determine a final positional relationship of the first object and the second object.-
公开(公告)号：US11726853B2
公开(公告)日：2023-08-15
申请号：US17604968
申请日：2020-04-03
Applicant: Hitachi Astemo, Ltd.
Inventor： Qixian Quan
IPC: G06F11/07
CPC classification number: G06F11/0757 , G06F11/079
Abstract: Provided is an electronic control unit capable of performing fault diagnosis of a watchdog timer circuit without delaying start of typical processing of a computer. A microcomputer termination processing unit 200 stops outputting a pulse to a watchdog timer circuit 101 in response to execution of termination processing of a microcomputer 100. When a reset signal is not output from the watchdog timer circuit 101 even when a predetermined time has elapsed since the stop of the output of the pulse, a watchdog timer circuit fault diagnosis unit 201 writes abnormality information indicating that an abnormality has occurred in the watchdog timer circuit 101 into the nonvolatile memory 102.
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