Patents by Inventor Md Shafquat Ullah Khan

Md Shafquat Ullah Khan 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).

  • Patent number: 11646682
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: May 9, 2023
    Assignee: Rolls-Royce Corporation
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang
  • Patent number: 11646685
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: May 9, 2023
    Assignee: Rolls-Royce Corporation
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang
  • Publication number: 20230098523
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang
  • Publication number: 20230100619
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang
  • Publication number: 20230094660
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang
  • Patent number: 11601077
    Abstract: Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: March 7, 2023
    Assignee: Rolls-Royce Corporation
    Inventors: Firman Sasongko, Md Shafquat Ullah Khan, Rejeki Simanjorang