Patents by Inventor Toshihisa Arai
Toshihisa Arai 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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Patent number: 11914871Abstract: An electronic control device includes a nonvolatile memory having allocated two storage areas that are exclusively switchable between an active state and an inactive state, the two storage areas being set such that in a state in which a program is written in the storage area in the active state, a program is written for updating to the storage area in the inactive state in response to an instruction from an external device, followed by switching the storage area in the active state to the inactive state and switching the storage area in the inactive state to the active state. In the electronic control device, when the program written in the storage area in the active state differs from the program written in the storage area in the inactive state, the program written in the storage area switched to the active state is copied to the storage area in the inactive state.Type: GrantFiled: January 27, 2020Date of Patent: February 27, 2024Assignee: Hitachi Astemo, Ltd.Inventors: Motoki Tatsumi, Mayumi Maeda, Toshihisa Arai
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Patent number: 11556104Abstract: An electronic control unit for vehicle capable of receiving a program by communication expands the received program in a volatile memory and executes the expanded program. As an example of this program, there is a program for changing a communication environment for communicating with another unit.Type: GrantFiled: February 12, 2020Date of Patent: January 17, 2023Assignee: Hitachi Astemo, Ltd.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Patent number: 11360698Abstract: An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.Type: GrantFiled: June 12, 2019Date of Patent: June 14, 2022Assignee: Hitachi Astemo, Ltd.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Publication number: 20220091762Abstract: An electronic control device includes a nonvolatile memory having allocated two storage areas that are exclusively switchable between an active state and an inactive state, the two storage areas being set such that in a state in which a program is written in the storage area in the active state, a program is written for updating to the storage area in the inactive state in response to an instruction from an external device, followed by switching the storage area in the active state to the inactive state and switching the storage area in the inactive state to the active state. In the electronic control device, when the program written in the storage area in the active state differs from the program written in the storage area in the inactive state, the program written in the storage area switched to the active state is copied to the storage area in the inactive state.Type: ApplicationFiled: January 27, 2020Publication date: March 24, 2022Inventors: Motoki TATSUMI, Mayumi MAEDA, Toshihisa ARAI
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Patent number: 10960833Abstract: A vehicle control apparatus according to the present invention includes a main electronic control unit, and a sub electronic control unit capable of mutual communication with the main electronic control unit. The main electronic control unit outputs a signal for preventing timeout to at least one of the external device and the sub electronic control unit, when mediating data communication between the external device and the sub electronic control unit.Type: GrantFiled: March 20, 2018Date of Patent: March 30, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Yohei Takahashi, Takuya Kobayashi, Motoki Tatsumi, Toshihisa Arai, Koji Yuasa
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Publication number: 20200406842Abstract: A vehicle control apparatus according to the present invention includes a main electronic control unit, and a sub electronic control unit capable of mutual communication with the main electronic control unit. The main electronic control unit outputs a signal for preventing timeout to at least one of the external device and the sub electronic control unit, when mediating data communication between the external device and the sub electronic control unit.Type: ApplicationFiled: March 20, 2018Publication date: December 31, 2020Inventors: Yohei TAKAHASHI, Takuya KOBAYASHI, Motoki TATSUMI, Toshihisa ARAI, Koji YUASA
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Publication number: 20200183349Abstract: An electronic control unit for vehicle capable of receiving a program by communication expands the received program in a volatile memory and executes the expanded program. As an example of this program, there is a program for changing a communication environment for communicating with another unit.Type: ApplicationFiled: February 12, 2020Publication date: June 11, 2020Inventors: Yusuke ABE, Koji YUASA, Toshihisa ARAI
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Patent number: 10606229Abstract: An electronic control unit for vehicle capable of receiving a program by communication expands the received program in a volatile memory and executes the expanded program. As an example of this program, there is a program for changing a communication environment for communicating with another unit.Type: GrantFiled: September 14, 2012Date of Patent: March 31, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Publication number: 20190294343Abstract: An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.Type: ApplicationFiled: June 12, 2019Publication date: September 26, 2019Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Patent number: 10353594Abstract: An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.Type: GrantFiled: September 14, 2012Date of Patent: July 16, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Publication number: 20180259577Abstract: An electronic control apparatus comprises a microcomputer that incorporates a diagnosis circuit for a hardware resource and a processor. The processor of the electronic control apparatus is configured to, when the diagnosis circuit determines that the hardware resource has failed, substitute a function provided by the failed hardware resource with a function provided by another hardware resource.Type: ApplicationFiled: November 2, 2016Publication date: September 13, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Akihito KUBOTA, Koji YUASA, Toshihisa ARAI
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Patent number: 9996296Abstract: An electronic control unit includes: a nonvolatile memory capable of erasing data in units of erasure blocks and also writing data in units of write blocks smaller than the erasure blocks; and a processor. In response to a data rewrite request from outside, the processor of the electronic control unit erases data in a portion of the nonvolatile memory in units of erasure blocks and writes data into the portion of the nonvolatile memory in units of write blocks. The amount of data sent to the electronic control unit from outside is thereby decreased and the time needed to rewrite data in the nonvolatile memory is reduced.Type: GrantFiled: February 25, 2014Date of Patent: June 12, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Toshifumi Miyake, Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Patent number: 9836225Abstract: An electronic control unit for a vehicle includes a nonvolatile memory that is capable of erasing and writing data electrically, and capable of receiving a program to be written into the nonvolatile memory in units of a predetermined size by means of communication using a communication buffer. The electronic control unit for the vehicle uses communication buffers, the number of which is greater than the number of communication buffers used in an in-vehicle communication environment, to receive the program.Type: GrantFiled: September 25, 2015Date of Patent: December 5, 2017Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Publication number: 20160048336Abstract: An electronic control unit includes: a nonvolatile memory capable of erasing data in units of erasure blocks and also writing data in units of write blocks smaller than the erasure blocks; and a processor. In response to a data rewrite request from outside, the processor of the electronic control unit erases data in a portion of the nonvolatile memory in units of erasure blocks and writes data into the portion of the nonvolatile memory in units of write blocks. The amount of data sent to the electronic control unit from outside is thereby decreased and the time needed to rewrite data in the nonvolatile memory is reduced.Type: ApplicationFiled: February 25, 2014Publication date: February 18, 2016Inventors: Toshifumi MIYAKE, Yusuke ABE, Koji YUASA, Toshihisa ARAI
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Publication number: 20160011795Abstract: An electronic control unit for a vehicle includes a nonvolatile memory that is capable of erasing and writing data electrically, and capable of receiving a program to be written into the nonvolatile memory in units of a predetermined size by means of communication using a communication buffer. The electronic control unit for the vehicle uses communication buffers, the number of which is greater than the number of communication buffers used in an in-vehicle communication environment, to receive the program.Type: ApplicationFiled: September 25, 2015Publication date: January 14, 2016Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yusuke ABE, Koji Yuasa, Toshihisa Arai
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Patent number: 9164696Abstract: An electronic control unit for a vehicle includes a nonvolatile memory that is capable of erasing and writing data electrically, and capable of receiving a program to be written into the nonvolatile memory in units of a predetermined size by means of communication using a communication buffer. The electronic control unit for the vehicle uses communication buffers, the number of which is greater than the number of communication buffers used in an in-vehicle communication environment, to receive the program.Type: GrantFiled: March 19, 2014Date of Patent: October 20, 2015Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yusuke Abe, Koji Yuasa, Toshihisa Arai
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Publication number: 20140208008Abstract: An electronic control unit for a vehicle includes a nonvolatile memory that is capable of erasing and writing data electrically, and capable of receiving a program to be written into the nonvolatile memory in units of a predetermined size by means of communication using a communication buffer. The electronic control unit for the vehicle uses communication buffers, the number of which is greater than the number of communication buffers used in an in-vehicle communication environment, to receive the program.Type: ApplicationFiled: March 19, 2014Publication date: July 24, 2014Applicant: Hitachi Automotive Systems, LtdInventors: Yusuke ABE, Koji YUASA, Toshihisa ARAI
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Publication number: 20130073116Abstract: An electronic control unit for vehicle capable of receiving a program by communication expands the received program in a volatile memory and executes the expanded program. As an example of this program, there is a program for changing a communication environment for communicating with another unit.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: Hitachi Automotive Systems, LtdInventors: Yusuke ABE, Koji Yuasa, Toshihisa Arai
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Publication number: 20130073799Abstract: An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: Hitachi Automotive Systems, Ltd.Inventors: Yusuke ABE, Koji Yuasa, Toshihisa Arai