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公开(公告)号：US11676403B2
公开(公告)日：2023-06-13
申请号：US17153949
申请日：2021-01-21
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Subrata Kumar Kundu , Naveen Kumar Bangalore Ramaiah
CPC classification number: G06V20/588 , G06T7/593 , G06V10/25 , G06T2207/10048 , G06T2207/20228 , G06T2207/30256
Abstract: In some examples, one or more processors may receive at least one first visible light image and a first thermal image. Further, the processor(s) may generate, from the at least one first visible light image, an edge image that identifies edge regions in the at least one first visible light image. At least one of a lane marker or road edge region may be determined based at least in part on information from the edge image. In addition, one or more first regions of interest in the first thermal image may be determined based on at least one of the lane marker or the road edge region. Furthermore, a gain of a thermal sensor may be adjusted based on the one or more first regions of interest in the first thermal image.
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公开(公告)号：US11674588B2
公开(公告)日：2023-06-13
申请号：US17200121
申请日：2019-07-05
Applicant: HITACHI ASTEMO, LTD.
Inventor： Kenji Fukasawa , Fumio Ohshima
IPC: F16H48/40 , F16H57/037 , F16H57/04
CPC classification number: F16H57/037 , F16H57/0424 , F16H57/0483 , F16H2700/00
Abstract: A differential case includes an outer shell wall portion configured to accommodate a pinion gear therein, and a first groove is formed in an inner surface of the outer shell wall portion on a back surface side of the pinion gear. In addition, a convex portion is formed on the inner surface of the outer shell wall portion on the back surface side of the pinion gear, and the first groove is formed in the convex portion. Further, a diameter of the convex portion is equal to or larger than a diameter of a back surface of the pinion gear.
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公开(公告)号：US11668366B2
公开(公告)日：2023-06-06
申请号：US17570833
申请日：2022-01-07
Applicant: Hitachi Astemo, Ltd.
Inventor： Shunsuke Mori , Hiroshi Murakami
CPC classification number: F16F9/46 , F16F9/34 , F16F9/48 , H01F2007/086
Abstract: A damping force adjustable shock absorber in2cludes an electromagnetic damping force adjustment device (17) having a damping force adjustment valve (18), and a solenoid (33) configured to variably adjust the damping force. The solenoid includes a coil (39) configured to generate a magnetic force by power supply, a movable iron core (43) located on an inner peripheral side of the coil, an anchor member (40) configured to attract the movable iron core. The movable iron core includes a thick cylindrical portion (43A) and a taper cylindrical portion (43B). The thick cylindrical portion includes a fixation hole (43A1) in which a shaft portion (44) is fixed. The taper cylindrical portion has an inner peripheral surface flaring so as to define a taper shape. A recessed portion (43A2) is formed around the fixation hole. The recessed portion allows hydraulic fluid to flow in an axial direction of the movable iron core.
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公开(公告)号：US20230167871A1
公开(公告)日：2023-06-01
申请号：US17912635
申请日：2021-02-22
Applicant: HITACHI ASTEMO, LTD.
Inventor： Fumiyuki YAMAOKA
IPC: F16F9/512
CPC classification number: F16F9/5126 , F16F9/185
Abstract: A shock absorber includes a cylinder-side member having an inner cylinder, a piston-side member having a piston and a piston rod that move relative to the inner cylinder, and a phase correction communication passage. The phase correction communication passage is provided between a bottom-side oil chamber, which is one side chamber, and a rod-side oil chamber, which is the other side chamber. That is, the phase correction communication passage is provided in the inner cylinder which is the cylinder-side member and communicates the bottom-side oil chamber and rod-side chamber with each other. By having a spiral conduit that advances in the axial direction while spiraling (orbiting) multiple times at the same diameter, the phase correction communication passage is configured as a second damping mechanism which generates a force (an axial force) that advances the phase of the damping force.
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公开(公告)号：US11654878B2
公开(公告)日：2023-05-23
申请号：US17438730
申请日：2020-05-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Tetsuro Tamura
IPC: B60W10/02 , B60K17/348 , B60W30/188 , B60W40/10 , B60W40/12
CPC classification number: B60W10/02 , B60K17/348 , B60W30/188 , B60W40/10 , B60W40/12
Abstract: A transfer (13) that changes a distribution ratio of torque to be transmitted to a wheel using an electric motor (43), is controlled by a TF-ECU (18). The TF-ECU (18) includes a driver circuit (200) that drives the electric motor (43), a current sensor (53) that detects an actual current of the electric motor (43), and a microcomputer (100) that calculates a target current (I*) corresponding to a desired distribution ratio of torque and performs current feedback control for calculating an operation amount (D) of the electric motor (43) so as to adjust an actual current (Ia) to the target current (I*), and then outputs to the driver circuit (200) a drive signal corresponding to the operation amount (D).
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Patent Agency Ranking
公开(公告)号：US20230156948A1
公开(公告)日：2023-05-18
申请号：US17919452
申请日：2021-02-02
Applicant: Hitachi Astemo, Ltd.
Inventor： Masato SAITO , Michihito WATARAI
CPC classification number: H05K5/062 , H05K5/0069 , H05K5/0052 , H01R13/5202 , B60R16/02 , H05K5/0204
Abstract: An object of the present invention is to provide an electronic control unit that curbs overflow of a sealant at a three-way junction of the sealant in the vicinity of a connector. The electronic control unit includes a first seal part 51 that seals between a base member 40 and a cover member 30, a second seal part 52 that seals between the base member 40 and a connector housing 20, and a third seal part 53 that is connected to the first seal part 51 and the second seal part 52 and seals between the cover member 30 and the connector housing 20. In a part (three-way junction) where the first seal part 51, the second seal part 52, and the third seal part 53 intersect, a space part 41JA1 that is connected to the recessed part 41 and recessed further from a surface forming the recessed part 41 is formed.
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公开(公告)号：US11649779B2
公开(公告)日：2023-05-16
申请号：US17057301
申请日：2019-06-17
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Eisaku Fukuchi
CPC classification number: F02D41/1495 , G07C5/0808
Abstract: Provided is a technology of accurately classifying abnormality in response characteristics of an air-fuel ratio sensors into six deterioration modes. In order to solve the above problems, the present disclosure provides a control device including a microprocessor that detects a response delay of an air-fuel ratio sensor attached to an internal combustion engine, in which the microprocessor includes a target air-fuel ratio change unit configured to change a target air-fuel ratio between lean and rich, and a response delay detection unit configured to detect a respond delay of the air-fuel ratio sensor that occurs in a real air-fuel ratio sensor signal output from the air-fuel ratio sensor when the target air-fuel ratio is changed between the lean and the rich by the target air-fuel ratio change unit.
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公开(公告)号：US20230148137A1
公开(公告)日：2023-05-11
申请号：US17911962
申请日：2021-01-15
Applicant: Hitachi Astemo, Ltd.
Inventor： Takahiro ARAKI , Akira MIMA , Noriyuki MAEKAWA
IPC: H01L27/02 , H01L29/866
CPC classification number: H01L27/0255 , H01L29/866
Abstract: There has been a problem that when a value of a current flowing through a thermistor increases, a voltage drop generated in the thermistor increases, and variations occur in a clamp voltage. A semiconductor device includes: a switching element that is on-off controlled; and a surge voltage protection circuit connected between a positive electrode side terminal of the switching element and a control terminal of the switching element. The surge voltage protection circuit includes a first Zener diode, a second Zener diode connected in series with the first Zener diode, and a temperature characteristic compensating element having a temperature coefficient different in polarity from the first Zener diode and the second Zener diode and connected in parallel with the second Zener diode.
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公开(公告)号：US20230147075A1
公开(公告)日：2023-05-11
申请号：US17913007
申请日：2020-11-27
Applicant: Hitachi Astemo, Ltd.
Inventor： Hiroo KAWAKAMI , Koji USUI , Naotoshi NAKAJIMA
CPC classification number: B60T13/746 , F16D51/22 , F16D65/0081 , F16D65/09 , F16D2051/005
Abstract: An electric parking brake device for a vehicle, including: a drum brake arranged on a radially inner side of a rim portion; and an electric actuator which enables obtaining a parking brake state by driving the drum brake, the electric actuator being mounted to a side surface of a back plate on an inner side in a vehicle-width direction. An ice and snow accumulation suppressing member (54) including a wall portion (54a), which extends from the back plate to the inner side in the vehicle-width direction while facing an inner peripheral surface of the rim portion (40b) and which is arranged at least below an anchor portion (21), is mounted to an outer peripheral edge portion of the back plate (13). With this configuration, collision of ice and snow refrozen in a wheel with the electric actuator can be prevented.
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公开(公告)号：US11645124B2
公开(公告)日：2023-05-09
申请号：US16969702
申请日：2019-01-23
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Masataka Nishi , Tomohito Ebina , Kazuyoshi Serizawa
Abstract: To be capable of concurrent execution of a function group not in data conflict by a plurality of cores and to execute a function pair in data conflict in a temporal separation manner. A process barrier 20 includes N−1 checker functions 22 and one limiter function 23, where the number of cores capable of concurrently executing the functions is N (N is an integer equal to or greater than 2), the checker functions 22 determine whether the head entry of a lock-free function queue LFQ1 is either the checker function 22 or the limiter function 23, and repeats reading of the head entry of the lock-free function queue LFQ1 if either, and ends processing if neither, and the limiter function 23 is an empty function ending without performing any processing.
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