Patents Assigned to Hitachi Automotive Systems, Ltd.
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Patent number: 11145646Abstract: Restraining a reduction in an electric current detection accuracy, which is due to the temperature difference between an output MOS transistor and a sense MOS transistor, and easing a limitation on the layout of the sense MOS transistor. A semiconductor device includes: an output MOS transistor that has an output transistor portion including a source, a gate, and a drain formed on a semiconductor chip, and outputs an electric current for driving an external load; and a sense MOS transistor that has a sense transistor portion including a source, a gate, and a drain formed on the semiconductor chip, and having a width equal to a transverse width of the output transistor portion, and that detects the electric current output from the output MOS transistor.Type: GrantFiled: April 16, 2018Date of Patent: October 12, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Shinichirou Wada, Katsumi Ikegaya
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Patent number: 11137993Abstract: The purpose of the present invention is to provide an imaging device capable of quickly providing functionality which contributes to improved safety. The present invention is characterized: by comprising an imaging unit that performs imaging, a software program storage unit that stores a plurality of software programs, and a start unit that starts each of the plurality of software programs stored in the software program storage unit; and in that at least one of the plurality of software programs is a software program that contributes to improvement of safety, and the start unit prioritizes the start of the software program contributing to improvement of safety over the other programs.Type: GrantFiled: December 19, 2017Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Akira Ohta, Rikiya Kashimura, Yoshiyuki Muto
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Patent number: 11136044Abstract: A vehicle control device capable of improving safety, even when abnormality in the operation of an arithmetic processing unit occurs. A second microcomputer receives trajectory information transmitted from a first microcomputer via a communication line and calculates control commands to actuators to synchronize the arithmetic processing unit allowing the first and second microcomputers to be synchronized. The second microcomputer performs a calculation and compares the result with the calculation result of the first microcomputer so that the second microcomputer can accurately determine whether or not the first microcomputer is abnormal. When the abnormality occurs in the first microcomputer based on the determination, the actuators are controlled by switching to the control commands calculated by the second microcomputer which is synchronized with the arithmetic processing unit. Thus, the device performs seamless self-driving control without the occurrence of abrupt control gaps.Type: GrantFiled: October 31, 2017Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hideyuki Sakamoto, Teppei Hirotsu, Satoshi Tsutsumi, Taisuke Ueta
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Patent number: 11137292Abstract: A physical quantity detecting device includes a circuit board having a first support portion with a physical quantity detecting element, a second support portion with a temperature detecting element, and a housing molded by injection molding, the housing supporting the circuit board. The physical quantity detecting element is configured to detect a physical quantity of fluid and the temperature detecting element is configured to detect a temperature of the fluid. The second support portion protrudes from an edge of the circuit and has a third support portion supporting the second support portion in connection with the housing. The third support portion is located on a same side as the leading end portion, with respect to a base end portion, and located on a same side as the base end portion, with respect to an implementation portion on which the temperature detecting element is implemented.Type: GrantFiled: June 30, 2017Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Nozomi Yatsumonji, Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki, Hiroyuki Abe
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Patent number: 11136954Abstract: A fuel injection valve is a fuel injection valve for injecting fuel to a combustion chamber of an internal combustion engine, which includes a valve body that is lifted by any one of a first lift amount of a maximum valve body lift amount and a second lift amount smaller than the first lift amount. In a case where the maximum valve body lift amount of the valve body is the first lift amount, a flow path area of a seat portion is larger than a sum of flow path areas of all injection holes, and in a case where the maximum valve body lift amount of the valve body is the second lift amount, the flow path area of the seat portion is smaller than the sum of flow path areas of all the injection holes.Type: GrantFiled: November 13, 2018Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tomoyuki Hosaka, Eiji Ishii, Kazuki Yoshimura, Noriyuki Maekawa
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Patent number: 11136022Abstract: Example implementations as described herein are directed to the use and detection of asymmetrical markers in conjunction with an autonomous mode for a human operated vehicle system. In example implementations, the vehicle system adjusts at least one of a position, orientation and speed based on the detection of asymmetrical markers, which can be utilized for vehicle navigation as well as autonomous valet parking.Type: GrantFiled: May 29, 2018Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yukti Matta, Kota Irie, Taisetsu Tanimichi
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Patent number: 11139771Abstract: To enable overmodulation control having high controllability and low noise characteristics, a control device of an AC motor includes an inverter for driving an AC motor and a controller for controlling the inverter by pulse width modulation. The controller, when over-modulating the inverter, limits the amplitude of the voltage command in the pulse width modulation to a predetermined upper limit value or less.Type: GrantFiled: September 25, 2017Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yoshitaka Iwaji, Naoki Okamoto, Masaki Hano, Takeshi Umetsu
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Publication number: 20210302211Abstract: It is possible to suppress overcorrection. A physical quantity detecting device includes: a physical quantity detecting sensor that detects a physical quantity of a measurement target fluid and outputs a detection signal; a compensation amount calculation unit that calculates, by using the detection signal, a lead compensation amount used in lead compensation for the detection signal; and a gain control unit that adjusts the lead compensation amount based on a deviation that is an amount of change in lead compensation amount over time.Type: ApplicationFiled: February 13, 2019Publication date: September 30, 2021Applicant: Hitachi Automotive Systems, Ltd.Inventors: Takahiro YAMAMOTO, Tsutomu KONO, Takahiro MIKI, Yuki ISOYA
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Publication number: 20210305646Abstract: Provided is an assembled battery which is downsized and in which a fastening force between a busbar and an external terminal cable at a fixing part is improved. Provided is an assembled battery including: a group of cells in which a plurality of cells, each having electrode terminals, is stacked; plate-shaped members arranged at ends of the group of cells; and cell holders arranged between the plate-shaped members and the group of cells, in which each of the cell holders is provided with a terminal fixing part of the assembled battery, and each of the plate-shaped members has a fitting part to be fitted to the terminal fixing part.Type: ApplicationFiled: August 4, 2017Publication date: September 30, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Osamu KUBOTA, Kazunori OJIMA, Sadayuki AOKI
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Patent number: 11130500Abstract: The purpose of the present invention is to provide an in-vehicle database which enables frequently updated real-time information to be read at high speed from a plurality of sets of input information, and an in-vehicle control apparatus having the in-vehicle database. The in-vehicle electronic control apparatus comprises: a data collection unit which acquires a plurality of pieces of data; a data storage unit which stores the plurality of pieces of data; and a table generation unit which generates a table having storage place identification information for identifying a storage place for the piece of data matching a predetermined data condition among the pieces of data stored in the data storage unit.Type: GrantFiled: September 13, 2017Date of Patent: September 28, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Kazuma Fukumoto, Yuki Horita, Yuji Fukushima
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Patent number: 11132329Abstract: An electronic control device includes: a partially reconfigurable logic circuit in which a calculation unit which is reconfigured and executes calculation and a storage unit which stores calculation target date to be calculated by the calculation unit is configured; and a processing control unit which transmits circuit data for reconfiguring the calculation unit and the calculation target date to the logic circuit. When the processing control unit obtains next calculation target data which is the calculation target date relating to a next calculation unit which is the calculation unit after completion of reconfiguration, transmission of the next calculation target date to the storage unit is started regardless of whether the reconfiguration of the next calculation unit is completed, and upon completion of the reconfiguration, the next calculation unit performs calculation using the next calculation target date.Type: GrantFiled: March 22, 2018Date of Patent: September 28, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Taisuke Ueta, Satoshi Tsutsumi, Hideki Endo, Hideyuki Sakamoto
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Patent number: 11131400Abstract: Provided is a high-pressure fuel supply pump and a method of manufacturing thereof which can suppress the progress of corrosion and cavitation erosion even when the pressure becomes higher, or when biofuel or a fuel having a high oil content of biofuel is used. Therefore, the high-pressure fuel supply pump includes a discharge valve 51b that discharges fuel, and a discharge valve seat 51a on which the discharge valve 51b is seated. The base material of the discharge valve 51b and the discharge valve seat 51a is a steel material. On the surface of the discharge valve 51b, a Co-based alloy layer 70b and a Cr-enriched portion 70b1 having a higher Cr concentration than the surrounding Co-based alloy layer 70b are formed. The Co-based alloy layer 70a is formed on the surface of the discharge valve seat 51a.Type: GrantFiled: December 7, 2018Date of Patent: September 28, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Mina Amo, Kenya Ohashi, Arata Kagiyama, Koichi Yamaka, Noriyuki Maekawa
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Publication number: 20210291842Abstract: An update system includes an electronic control device that stores an autonomous driving logic and a server. The server includes: a storage unit storing personal characteristic data based on a user's driving and associated driving result data. In creating a first personal characteristic data associated with a first user ID and a first position, if first driving result data is present, the personal characteristic creating unit creates the first personal characteristic data using the first driving result data. If the first driving result data is not present, the personal characteristic creating unit creates the first personal characteristic data using the driving result data or the personal characteristic data associated with a user ID specified for the first user ID by the similarity specifying unit and the first position. The electronic control device includes a personal characteristic updating unit configured to update the autonomous driving logic using the first personal characteristic.Type: ApplicationFiled: August 7, 2019Publication date: September 23, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: Kiyohiro OBARA
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Patent number: 11124200Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.Type: GrantFiled: February 5, 2018Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yoshitaka Fukasawa, Masahito Mitsuhashi, Takayuki Kawashima
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Patent number: 11128523Abstract: The present invention provides an electronic controller and the like capable of identifying the order of communication apparatuses connected to a bus while minimizing manufacturing cost. In the present invention, bus wiring 2 has one end connected to a port 111 and the other end connected to a port 112. A plurality of lower ECUs 301 to 304 are connected to the bus wiring 2. A current sensor CS measures current Is1 flowing through the port 111 and current Is2 flowing through the port 112 by applying current to the bus wiring 2 from each of the plurality of lower ECUs 301 to 304. The higher controller 12 identifies the order of the plurality of lower ECUs 301 to 304 on the bus wiring 2 on the basis of the current Is1 and the current Is2 which are measured for each of the plurality of lower ECUs 301 to 304.Type: GrantFiled: October 24, 2017Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi Iwasawa, Teppei Hirotsu, Mitsuhiko Watanabe
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Patent number: 11127695Abstract: A power conversion device includes first and second power semiconductor elements, and a circuit for transferring a drive signal of the first and second power semiconductor elements. The circuit board includes a first emitter wire which is formed along an arranging direction of the first power semiconductor element and the second power semiconductor element, a first gate wire which is disposed between the first power semiconductor element and the first emitter wire, a second gate wire which is disposed between the second power semiconductor element and the emitter wire, a third gate wire which is disposed to face the first gate wire and the second gate wire with the emitter wire interposed between the third gate wire and the first gate wire and the second gate wire, and a first gate resistor which connects the first gate wire and the third gate wire over the first emitter wire.Type: GrantFiled: July 27, 2018Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Akihiro Namba, Takashi Hirao, Masami Oonishi
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Patent number: 11125572Abstract: There is achieved an electronic control device capable of calculating an optimal travel plan even during dynamic reconfiguration of a calculation circuit configuration. When a driving state changes, a travel plan parameter generation/selection unit divides evaluation calculation units into two blocks and performs reconfiguration of the respective evaluation calculation units a plurality of times via a reconfiguration control unit. While the evaluation calculation units are reconfigured, the evaluation calculation units performs evaluation calculation, and while the evaluation calculation units are reconfigured, the evaluation calculation units perform evaluation calculation. Thus, even while some of the evaluation calculation units are being reconfigured, it is possible to continue evaluation of the travel plan in the rest of the evaluation calculation units.Type: GrantFiled: October 26, 2017Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ryoichi Inada, Tatsuya Horiguchi, Teppei Hirotsu, Hideyuki Sakamoto
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Patent number: 11128206Abstract: A method of manufacturing a rotor of a rotating electrical machine includes a method of manufacturing a rotor of a rotating electrical machine including a magnet and a rotor core forming storage space for storing the magnet. The rotor core forms an opening connected to the storage space. The method includes a first step of covering at least part of the opening with a first jig and a second jig having a non-adhesive resin film, a second step of putting an adhesive into the storage space, a third step of curing the adhesive in a state of being in contact with the non-adhesive resin film to form a plane surface facing an end ring of the rotating electrical machine, and a fourth step of separating the first jig and the second jig from the adhesive.Type: GrantFiled: January 31, 2018Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Mohdbasir Zulaika, Shinji Yamazaki, Shinjirou Watari, Tomohiro Fukuda
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Patent number: 11117559Abstract: An object of the invention is to realize an M+ control which is suitable to a driving scene without depending on pedal operation information of a driver. A vehicle motion control device according to the invention sets an absolute value of deceleration generated in the vehicle in a period in which the lateral motion of the vehicle is predicted to be changed from a state where the vehicle takes the lateral motion to a state where the vehicle does not take the lateral motion to be smaller than that generated in a period in which the lateral motion of the vehicle is predicted to be changed from a state the vehicle takes one of right and left lateral motions to a state where the vehicle takes the other lateral motion.Type: GrantFiled: August 22, 2017Date of Patent: September 14, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Junya Takahashi, Yuki Akiyama, Masamichi Imamura
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Patent number: 11118523Abstract: Provided is a fuel injection device and a control unit therefor which enable reliable ignition even in a case where fuel pressure is low immediately after starting an engine. In the control unit for controlling an injector injecting fuel into an internal combustion engine, a plurality of injectors is provided in the internal combustion engine, a static flow rate of a first injector is configured to be smaller than a static flow rate of a second injector. In a case where a fuel pressure of fuel supplied by a pressurizing unit is lower than a set value set lower than a fuel pressure in warming up, an injection ratio of the first injector is controlled to increase according to a difference between a fuel pressure of fuel from the pressurizing unit and a fuel pressure in warming up.Type: GrantFiled: August 2, 2017Date of Patent: September 14, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tomoyuki Hosaka, Taisuke Sugii, Eiji Ishii, Yoshihiro Sukegawa, Masayuki Saruwatari