Patents by Inventor Yuji Nishi
Yuji Nishi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230131177Abstract: An estimation device configured to estimate a charge rate of a battery includes a voltage sensor configured to detect a voltage of the battery, a temperature sensor configured to detect a temperature of the battery, and a processing circuit. The processing circuit is connected to the voltage sensor and the temperature sensor and is configured to execute, while a vehicle is parked, an estimation process of estimating the charge rate of the battery based on a detection voltage and a detection temperature. The detection voltage is detected by the voltage sensor. The detection temperature is detected by the temperature sensor.Type: ApplicationFiled: October 3, 2022Publication date: April 27, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Miki MASUMOTO, Yuya ANDO, Yuji NISHI, Mai FUJIWARA
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Publication number: 20230079073Abstract: A wire harness including an electric wire; a cover that covers an outer circumferential surface of the electric wire; and a clamp for fixing the electric wire to a vehicle body, wherein: a surface of the cover that is provided on a side opposite to the electric wire includes an uneven surface with a plurality of irregularities, and the clamp includes: an elastic member that is made of an elastic body and is brought into contact with the uneven surface; and a fixing member that presses the elastic member against the uneven surface and is fixed to the vehicle body.Type: ApplicationFiled: February 16, 2021Publication date: March 16, 2023Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Takuya MURATA, Yuji NISHI
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Patent number: 11529912Abstract: A wire harness including: a wire; a cover that covers the wire; and a cushion provided between the wire and the cover, wherein: the cover is provided with a hole in an intermediate portion of the cover in an extension direction of the wire, and the cushion is provided between the hole and the wire in a first direction intersecting the extension direction.Type: GrantFiled: March 9, 2021Date of Patent: December 20, 2022Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yuji Nishi, Yuki Morimoto
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Publication number: 20220389746Abstract: A vehicle opening and closing body control device includes a full close control unit configured to cause first and second opening and closing bodies that are provided at an opening portion of a vehicle and execute opening and closing operations in opposite directions to execute the closing operations to a fully closed position. The full close control unit is configured to cause the second opening and closing body to execute the closing operation at an operation speed slower than that of the first opening and closing body.Type: ApplicationFiled: May 23, 2022Publication date: December 8, 2022Applicant: AISIN CORPORATIONInventors: Yuji NISHI, Isao HONDA, Kenta IZUMI, Takeshi NISHIKIBE
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Publication number: 20220332240Abstract: A ramp-equipped vehicle includes a ramp that is provided so as to be deployable from a side portion of a vehicle body to the outside of the vehicle body, a controller that controls the operation of deploying the ramp, and a sensor that senses moving bodies present in a certain area that is away from a ramp deployment area. The controller detects the moving bodies approaching the ramp deployment area and determines the moving velocities of the moving bodies based on the results of sensing by the sensor. The controller stops the operation of deploying the ramp when, after the start of the operation of deploying the ramp, it detects the approaching moving body having a moving velocity higher than or equal to a predetermined reference velocity with which the approaching moving bodies may reach the ramp deployment area during the operation of deploying the ramp.Type: ApplicationFiled: April 8, 2022Publication date: October 20, 2022Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATIONInventors: Junya FUKUTA, Kentaro OYA, Isao HONDA, Naoya ISHIDA, Chihiro DATE, Yuji NISHI, Takeshi NISHIKIBE
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Patent number: 11433831Abstract: A wire harness including: a wire member; a protector that houses the wire member; a first corrugated tube that extends externally from an end of the protector and covers an outer circumference of the wire member; a second corrugated tube that is provided at a location that is on an opposite side to the protector with respect to the first corrugated tube and spaced apart from the first corrugated tube, and covers the outer circumference of the wire member; a first fixing member that fixes the wire member to the first corrugated tube and the second corrugated tube; and an exterior cover that covers the outer circumference of the wire member.Type: GrantFiled: March 10, 2021Date of Patent: September 6, 2022Assignee: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yuji Nishi, Yuki Morimoto
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Patent number: 11325595Abstract: In vehicle platooning, when road surface information is received from a preceding vehicle, an ECU determines whether a specific spot on a road included in the road surface information can be avoided. That is, the ECU determines whether avoidance control can be performed. When it is determined that the avoidance control can be performed, the ECU transmits the road surface information received from the preceding vehicle to a following vehicle, and performs the avoidance control to avoid the specific spot on the road. In contrast, when it is determined that the avoidance control cannot be performed, the ECU ends a process without performing the avoidance control.Type: GrantFiled: May 4, 2020Date of Patent: May 10, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takayoshi Tanaka, Yuji Nishi, Tomoaki Koshikawa
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Patent number: 11181583Abstract: A battery system includes a nickel hydride battery and an electronic control unit. The electronic control unit is configured to store data indicating a corresponding relationship between an elapsed time from start of use of the nickel hydride battery and a memory quantity. The data are data determined in a classified manner individually for each of conditions of use that are defined in such a manner as to include an open circuit voltage and a temperature. The electronic control unit is configured to sequentially calculate, with reference to the data, the memory quantity within a time when classification of the conditions of use does not change. The memory quantity is a quantity indicating an amount of change in voltage resulting from a memory effect. The electronic control unit is configured to estimate a current memory quantity of the nickel hydride battery by integrating the calculated memory quantity.Type: GrantFiled: June 8, 2017Date of Patent: November 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji Takahashi, Masafumi Nose, Yuji Nishi, Nobuyasu Haga
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Publication number: 20210291761Abstract: A wire harness including: a wire member; a protector that houses the wire member; a first corrugated tube that extends externally from an end of the protector and covers an outer circumference of the wire member; a second corrugated tube that is provided at a location that is on an opposite side to the protector with respect to the first corrugated tube and spaced apart from the first corrugated tube, and covers the outer circumference of the wire member; a first fixing member that fixes the wire member to the first corrugated tube and the second corrugated tube; and an exterior cover that covers the outer circumference of the wire member.Type: ApplicationFiled: March 10, 2021Publication date: September 23, 2021Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yuji NISHI, Yuki MORIMOTO
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Publication number: 20210291759Abstract: A wire harness including: a wire; a cover that covers the wire; and a cushion provided between the wire and the cover, wherein: the cover is provided with a hole in an intermediate portion of the cover in an extension direction of the wire, and the cushion is provided between the hole and the wire in a first direction intersecting the extension direction.Type: ApplicationFiled: March 9, 2021Publication date: September 23, 2021Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventors: Yuji NISHI, Yuki MORIMOTO
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Publication number: 20200369269Abstract: In vehicle platooning, when road surface information is received from a preceding vehicle, an ECU determines whether a specific spot on a road included in the road surface information can be avoided. That is, the ECU determines whether avoidance control can be performed. When it is determined that the avoidance control can be performed, the ECU transmits the road surface information received from the preceding vehicle to a following vehicle, and performs the avoidance control to avoid the specific spot on the road. In contrast, when it is determined that the avoidance control cannot be performed, the ECU ends a process without performing the avoidance control.Type: ApplicationFiled: May 4, 2020Publication date: November 26, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takayoshi TANAKA, Yuji NISHI, Tomoaki KOSHIKAWA
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Patent number: 10725108Abstract: [Summary] [Objective] Estimation accuracy in a battery status estimating device which estimates a charge status of a secondary battery should be improved further more. [Means for Solution] In an SOC estimation by integration of a charge-and-discharge current, influence of a sensor error cannot be disregarded, and the influence of such an error is accumulated as time passes. On the other hand, in an SOC estimation based on measured values of a battery voltage and a battery temperature, estimation accuracy largely depends on a load-generation pattern. Then, in accordance with the present invention, by mixing both, while one of them is reset based on a reliability in accordance with an operation situation and/or an input current value which will be the premise for an SOC estimate calculation in a battery model is set up based on the reliability, it becomes possible to compute an SOC estimate in high accuracy as much as possible in accordance with the operation situation.Type: GrantFiled: December 20, 2012Date of Patent: July 28, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji Takahashi, Yuji Nishi, Nobuyasu Haga
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Patent number: 10329829Abstract: One embodiment of the present invention provides an opening/closing detection device, including: a plurality of sensors configured to be arranged along a predetermined portion of a mark attached to a vehicle; and a control unit configured to output an action trigger signal for instructing an opening action of an opening/closing body of the vehicle when detection signals representing a trace order of the predetermined portion are input from the plurality of sensors that detect an order of a motion of tracing the predetermined portion of the mark by a user of the vehicle.Type: GrantFiled: December 1, 2015Date of Patent: June 25, 2019Assignees: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seika Matsui, Takeshi Katsuda, Satoru Ishizaki, Yuji Nishi
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Patent number: 10209319Abstract: A battery system includes a chargeable and dischargeable secondary battery and a controller that estimates the deterioration state or the charge state of the secondary battery. When estimating the deterioration state or the charge state, the controller uses an average ion concentration between a positive electrode and a negative electrode. The average ion concentration varies depending on an electric current flowing through the secondary battery. The average ion concentration between the electrodes can be calculated with a computing expression that includes a surface pressure of the secondary battery as a variable. The surface pressure of the secondary battery can be detected by a pressure sensor. The surface pressure of the secondary battery can also be estimated from an electric current flowing through the secondary battery.Type: GrantFiled: February 1, 2013Date of Patent: February 19, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Kaiya, Kenji Takahashi, Yuji Nishi, Hiroki Tashiro
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Patent number: 10158241Abstract: An electricity storage system includes an electricity storage block including an electricity storage element for performing charging and discharging; a relay switched between an ON state in which the electric storage block is connected to a load and an OFF state in which a connection between the electricity storage block and the load is cut off; a controller for controlling the ON state and the OFF state of the relay; and a current cutoff circuit so as to cut off energization of the electricity storage block. The current cutoff circuit has an alarm circuit to indicate that the electricity storage block is in an overcharged state by comparing a voltage value of the electricity storage block and a threshold; a latch circuit retains the alarm signal; and a transistor receives an output signal of the latch circuit and switches the relay from the ON state to the OFF state.Type: GrantFiled: December 3, 2012Date of Patent: December 18, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukinari Tanabe, Yuji Nishi, Hiroyuki Kaiya, Hiromasa Tanaka, Keiji Kaita, Motoi Ito
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Patent number: 10096992Abstract: An electrical storage system includes an electrical storage device (10); a relay (SMR-B, SMR-G, SMR-P) switching between on/off states; a current interruption circuit (60) interrupting energization of the electrical storage device by causing the relay to switch from the on state to the off state; and a controller (30) executing drive control over the relay. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating overcharging/overdischarging of any one electrical storage block by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; and a transistor (68) causing the relay to switch from the on state to the off state upon reception of an output signal of the latch circuit. The controller determines an energization state of the electrical storage device by executing control for turning on the relay while control for causing the alarm circuit to output the alarm signal is being executed.Type: GrantFiled: November 29, 2013Date of Patent: October 9, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
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Patent number: 10024919Abstract: A system for determining fixation of a relay has an electricity storage device, an electrical apparatus, a relay, a first insulation resistor, a second insulation resistor, a detection circuit, and a controller. When the relay is controlled to OFF, the controller determines, based on the voltage value detected by the detection circuit (the detected voltage value), whether or not the relay is fixed. When the detected voltage value is a voltage value that is obtained by dividing the reference voltage value by a combined resistance value and the reference resistance value, the controller determines that the relay is fixed. When the detected voltage value is a voltage value that is obtained by dividing the reference voltage value by the first resistance value and the reference resistance value, the controller determines that the relay is not fixed.Type: GrantFiled: September 4, 2014Date of Patent: July 17, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Nishi, Yukinari Tanabe, Hiroyuki Kaiya, Hiromasa Tanaka
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Patent number: 9954454Abstract: A DC/DC converter is able to step down a voltage value of a high-voltage battery, and is able to step up a voltage value of a low-voltage battery. The low-voltage battery is a battery that provides a lower voltage value than the high-voltage battery. The DC/DC converter includes a transformer, a third diode and a reactor. The transformer includes a first coil and a second coil. The first coil is connected to the low-voltage battery. The second coil is connected to the high-voltage battery. An anode of the third diode is connected to one end of the first coil. One end of the reactor is connected to a cathode of the third diode, and the other end of the reactor is connected to a positive electrode terminal of the low-voltage battery.Type: GrantFiled: March 13, 2015Date of Patent: April 24, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Nishi, Hiromasa Tanaka, Masanori Ishigaki, Shuji Tomura
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Patent number: 9941712Abstract: An electrical storage system includes a relay switching between an on state where an electrical storage device (10) is connected to a load and an off state where connection of the electrical storage device with the load is interrupted; a controller controlling an on-off state of the relay; and a current interruption circuit (60) interrupting energization of the electrical storage device. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating that any one electrical storage block is in an overcharged state by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; a transistor (66) causing the relay to switch from the on state to the off state upon reception of an output signal of the latch circuit; and a power supply circuit (63d) generating electric power for operating the latch circuit using electric power of the electrical storage device.Type: GrantFiled: November 28, 2013Date of Patent: April 10, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiji Kaita, Yuji Nishi, Yukinari Tanabe, Hiromasa Tanaka, Motoi Ito
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Patent number: 9933491Abstract: An electric storage system includes electric storage blocks and a controller determining the state of each of the electric storage blocks. The plurality of electric storage blocks are connected in series, and each of the electric storage blocks has a plurality of electric storage elements connected in parallel. Each of the electric storage elements has a current breaker breaking a current path within the electric storage element. The controller acquires at least one parameter of an internal resistance and a full charge capacity of each of the electric storage blocks, and uses a change rate between the acquired parameter and a reference value to specify the number of current breakers in a broken state (the number of breaks) in each of the electric storage blocks. The reference value refers to the value of the parameter in the electric storage block not including the current breaker in the broken state.Type: GrantFiled: February 3, 2012Date of Patent: April 3, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji Takahashi, Yuji Nishi, Hiroyuki Kaiya, Kenji Kimura