Patents by Inventor Charles Bartlett

Charles Bartlett 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).

  • Publication number: 20240140344
    Abstract: A method for controlling an actuatable safety device for protecting an occupant of a vehicle includes utilizing an advanced driver assistance system (ADAS) to determine that a vehicle collision is impending. In response to determining the existence of an impending vehicle collision, a mass spring damper model uses sensed vehicle longitudinal acceleration (IMU_X) to estimate the occupant movement that will result from the impending vehicle collision. The estimated occupant movement is used to determine how to control deployment of an actuatable safety device in response to the crash.
    Type: Application
    Filed: February 26, 2021
    Publication date: May 2, 2024
    Inventors: Charles A. Bartlett, Kyeora Lee, Kiran Balasubramanian
  • Publication number: 20240101060
    Abstract: According to one aspect, a vehicle safety system includes an actuatable controlled restraint (ACR) comprising a seatbelt for restraining a vehicle occupant. The ACR is actuatable to control payout and retraction of the seatbelt. The system also includes a controller configured to determine operating conditions of the vehicle and to control the actuation of the ACR in response to the determined operating conditions of the vehicle. The ACR has a normal restraint condition and an enhanced restraint condition, the controller being configured to actuate the ACR from the normal restraint condition to the enhanced restraint condition in response to determining abnormal driving conditions of the vehicle.
    Type: Application
    Filed: January 7, 2021
    Publication date: March 28, 2024
    Inventors: CHARLES A. BARTLETT, ANDREAS FLECKNER, HARALD PFRIENDER, KIRAN BALASUBRAMANIAN, HUAHN-FERN YEH, JULIAN SCHERER
  • Publication number: 20240069094
    Abstract: A test system includes a test and measurement device having an input port for receiving signals for testing or measuring, a reprogrammable test accessory having an output coupled to the input port of the test and measurement device. The reprogrammable test accessory includes a test port structured to accept one or more test signals from a Device Under Test (DUT), a processor, a reprogrammable data protocol analyzer for determining whether data carried by the one or more test signals from the DUT conform to a predetermined data protocol, and a reprogramming facility for modifying the reprogrammable data protocol analyzer from a first configuration to a second configuration. Methods of operation are also described.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Applicant: Tektronix, Inc.
    Inventors: Charles W. Case, Daniel G. Knierim, Joshua J. O'Brien, Josiah A. Bartlett, Julie A. Campbell
  • Patent number: 11912306
    Abstract: A method helps to protect an occupant of a vehicle (10) equipped with an automated driving system (200) and a vehicle safety system (100) by detecting low impact crash events (99) with the vehicle (10). The method includes utilizing automated driving sensors (220, 230, 240, 250, 260) of the automated driving system (200) to identify possible low impact collision risks. The method also includes utilizing vehicle safety system sensors (110, 115, 120, 125, 130) of the vehicle safety system to determine a low impact collision resulting from the identified possible low impact collision. A vehicle safety system (100) includes an airbag controller unit (150) configured to implement the method to determine low impact crash events with the vehicle (10).
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: February 27, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Steven Kanzler, Kiran Balasubramanian, Carl Munch, Andreas Fleckner, Harald Pfriender, Michal Duchowski, Charles Bartlett, Huahn-Fern Yeh
  • Publication number: 20240051485
    Abstract: A method for controlling an actuatable safety device for protecting an occupant of a vehicle includes sensing a left upfront vehicle acceleration via a left upfront sensor, sensing a middle upfront vehicle acceleration via a middle upfront sensor, and sensing a right upfront vehicle acceleration via a right upfront sensor. The method also includes sensing a central vehicle acceleration via a central airbag control unit. The method further includes determining the occurrence of a vehicle crash event in response to determining that each of the left, middle, and right upfront vehicle accelerations exceeds a predetermined magnitude and is phase shifted from the central vehicle acceleration.
    Type: Application
    Filed: December 16, 2020
    Publication date: February 15, 2024
    Inventors: Charles A. Bartlett, Pawel Koziel, Michal Duchowski, Artur Fijalkowski, Kiran Balasubramanian, Maciej Rejer
  • Publication number: 20230140943
    Abstract: A method for controlling an actuatable safety device (110) for helping to protect a vehicle occupant includes sensing left-front and right-front pressure values via a pressure tube sensor (18). The method also includes executing pressure tube metrics that evaluate the left-front and right-front pressure values and selecting switched crash thresholds in response to the pressure tube metrics. The method also includes sensing vehicle acceleration parameters (99) and executing one or more crash metrics that evaluate the vehicle acceleration parameters to determine whether the switched crash thresholds are exceeded. The method further includes controlling deployment of the actuatable safety device (110) in response to determining that the switched crash thresholds are exceeded. A vehicle safety system (100) implements the method.
    Type: Application
    Filed: March 19, 2020
    Publication date: May 11, 2023
    Inventors: MACIEJ REJER, ANDREAS FLECKNER, PAWEL KOZIEL, CHARLES A. BARTLETT, HARALD PFRIENDER
  • Publication number: 20230116504
    Abstract: A method for controlling actuation of an actuatable restraint in response to a vehicle rollover event includes detecting whether the vehicle (12) is being driven off-road. The method also includes determining whether the vehicle (12) is undergoing a roll event (99) that would warrant actuation of the actuatable restraint (20) if the vehicle was being driven on-road. The method further includes actuating the actuatable restraint (20) in response to determining that a roll acceleration (D RATE) of the vehicle (20) indicates that the roll event is continuing. A vehicle safety system (10) includes an actuatable restraint and a controller (50) configured to control actuation of the actuatable restraint according to this method.
    Type: Application
    Filed: March 12, 2020
    Publication date: April 13, 2023
    Inventors: CHARLES A. BARTLETT, CHUNQI WANG, KIRAN BALASUBRAMANIAN, HUAHN-FERN YEH, LUCA ZAFFALON, ADRIANO PUTETTO, MACIEJ REJER, CHUCK ZHAN
  • Publication number: 20230032994
    Abstract: A vehicle safety system for helping to protect a pedestrian in the event of a vehicle frontal collision with the pedestrian includes a plurality of crash sensors for sensing a vehicle frontal collision, an actuatable pedestrian protection device, a controller for controlling actuation of the pedestrian protection device, and at least one active sensor for determining the presence of a pedestrian in the path of the vehicle.
    Type: Application
    Filed: January 17, 2020
    Publication date: February 2, 2023
    Inventors: CHARLES A. BARTLETT, PAWEL KOZIEL, MICHAL DUCHOWSKI, KIRAN BALASUBRAMANIAN, KYEORA LEE
  • Patent number: 11560108
    Abstract: A vehicle safety system implements a method for helping to protect a vehicle occupant in the event of a frontal collision. The method includes determining a passive safety crash mode classification in response to crash signals received in response to the occurrence of a crash event. The method also includes determining an active safety crash mode classification in response to active safety signals received prior to the occurrence of the crash event. The method also includes determining an active safety confidence factor for the active safety crash mode classification. The method also includes determining the weighted crash mode classification as being the active crash mode classification in response to the active safety confidence factor exceeding a predetermined confidence value. The method further includes determining the weighted crash mode classification as being the passive crash mode classification in response to the active safety confidence factor not exceeding the predetermined confidence value.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 24, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Kiran Balasubramanian, Charles A. Bartlett, Andreas Fleckner, Harald Pfriender, Raymond David, Huahn-Fern Yeh
  • Patent number: 11554734
    Abstract: A vehicle safety system includes an actuatable restraint for helping to protect a vehicle occupant and a controller for controlling actuation of the actuatable restraint in response to a vehicle rollover event. The controller is configured to execute a discrimination algorithm comprising at least one classification metric that utilizes at least one of vehicle pitch rate (P_RATE) and vehicle roll acceleration (D_RATE) to discriminate at least one of a ramp rollover event and a soil rollover event from an embankment rollover event. The discrimination algorithm determines a classification of the vehicle rollover event as one of a ramp rollover event, a soil rollover event, and an embankment rollover event. The controller is also configured to select a deployment threshold for deploying the actuatable restraint. The deployment threshold corresponds to the classification of the vehicle rollover event.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 17, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Charles A. Bartlett, Huahn-Fern Yeh
  • Patent number: 11505149
    Abstract: A method for controlling the actuation of an actuatable restraint to help protect a vehicle occupant in response to a rollover event is implemented in a controller of a vehicle safety system that includes the actuatable restraint. To implement the method, the controller is configured to execute a roll discrimination metric that discriminates the occurrence of a ramp rollover event or an embankment rollover event in response to a vehicle roll rate (R_RATE) having a magnitude that exceeds a predetermined threshold roll rate (R_RATE). The controller is also configured to execute a switching metric that is operative to reduce the predetermined threshold roll rate (R_RATE) in response to a vehicle pitch rate (P_RATE) having a magnitude that exceeds a predetermined threshold pitch rate (P_RATE).
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 22, 2022
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Kiran Balasubramanian, Annette Schanz, Huahn-Fern Yeh, Charles A. Bartlett
  • Publication number: 20220153304
    Abstract: A method helps to protect an occupant of a vehicle (10) equipped with an automated driving system (200) and a vehicle safety system (100) by detecting low impact crash events (99) with the vehicle (10). The method includes utilizing automated driving sensors (220, 230, 240, 250, 260) of the automated driving system (200) to identify possible low impact collision risks. The method also includes utilizing vehicle safety system sensors (110, 115, 120, 125, 130) of the vehicle safety system to determine a low impact collision resulting from the identified possible low impact collision. A vehicle safety system (100) includes an airbag controller unit (150) configured to implement the method to determine low impact crash events with the vehicle (10).
    Type: Application
    Filed: March 20, 2020
    Publication date: May 19, 2022
    Inventors: STEVEN KANZLER, KIRAN BALASUBRAMANIAN, CARL MUNCH, ANDREAS FLECKNER, HARALD PFRIENDER, MICHAL DUCHOWSKI, CHARLES BARTLETT, HUAHN-FERN YEH
  • Publication number: 20210291768
    Abstract: A vehicle safety system implements a method for helping to protect a vehicle occupant in the event of a frontal collision. The method includes determining a passive safety crash mode classification in response to crash signals received in response to the occurrence of a crash event. The method also includes determining an active safety crash mode classification in response to active safety signals received prior to the occurrence of the crash event. The method also includes determining an active safety confidence factor for the active safety crash mode classification. The method also includes determining the weighted crash mode classification as being the active crash mode classification in response to the active safety confidence factor exceeding a predetermined confidence value. The method further includes determining the weighted crash mode classification as being the passive crash mode classification in response to the active safety confidence factor not exceeding the predetermined confidence value.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 23, 2021
    Inventors: Kiran Balasubramanian, Charles A. Bartlett, Andreas Fleckner, Harald Pfriender, Raymond David, Huahn-Fern Yeh
  • Publication number: 20210291770
    Abstract: A vehicle safety system includes an actuatable restraint for helping to protect a vehicle occupant and a controller for controlling actuation of the actuatable restraint in response to a vehicle rollover event. The controller is configured to execute a discrimination algorithm comprising at least one classification metric that utilizes at least one of vehicle pitch rate (P_RATE) and vehicle roll acceleration (D_RATE) to discriminate at least one of a ramp rollover event and a soil rollover event from an embankment rollover event. The discrimination algorithm determines a classification of the vehicle rollover event as one of a ramp rollover event, a soil rollover event, and an embankment rollover event. The controller is also configured to select a deployment threshold for deploying the actuatable restraint. The deployment threshold corresponds to the classification of the vehicle rollover event.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 23, 2021
    Inventors: CHARLES A. BARTLETT, HUAHN-FERN YEH
  • Publication number: 20210284091
    Abstract: A vehicle safety system for helping to protect a vehicle occupant in the event of a frontal collision includes a controller, one or more crash sensors for sensing a frontal collision, and an active sensor for detecting objects in the path of the vehicle. The controller is configured to implement crash discrimination metrics that detect the occurrence of a frontal collision in response to signals received from the crash sensors. The crash discrimination metrics implement thresholds for determining whether the signals received from the crash sensors indicate the occurrence of a frontal collision. The controller is configured to implement an algorithm that uses information obtained from the active sensor to detect an object in the path of the vehicle and to select the thresholds implemented in the crash discrimination metrics in response to detecting the object.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 16, 2021
    Inventors: KIRAN BALASUBRAMANIAN, Harald Pfriender, Charles A. Bartlett, Andreas Fleckner
  • Publication number: 20210284092
    Abstract: A method for controlling the actuation of an actuatable restraint to help protect a vehicle occupant in response to a rollover event is implemented in a controller of a vehicle safety system that includes the actuatable restraint. To implement the method, the controller is configured to execute a roll discrimination metric that discriminates the occurrence of a ramp rollover event or an embankment rollover event in response to a vehicle roll rate (R_RATE) having a magnitude that exceeds a predetermined threshold roll rate (R_RATE). The controller is also configured to execute a switching metric that is operative to reduce the predetermined threshold roll rate (R_RATE) in response to a vehicle pitch rate (P_RATE) having a magnitude that exceeds a predetermined threshold pitch rate (P_RATE).
    Type: Application
    Filed: March 12, 2020
    Publication date: September 16, 2021
    Inventors: KIRAN BALASUBRAMANIAN, ANNETTE SCHANZ, HUAHN-FERN YEH, Charles A. Bartlett
  • Patent number: 11104284
    Abstract: A method for controlling an actuatable restraining device includes sensing a plurality of crash event indications in response to a crash event. The method also includes classifying the crash event in response to comparing the sensed crash event indications against one another to identify an oblique moving deformable barrier crash event. The method further includes controlling deployment timing of the actuatable restraining device in response to the classification of the crash event.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 31, 2021
    Assignee: ZF ACTIVE SAFETY AND ELECTRONICS US LLC
    Inventors: Charles A. Bartlett, Huahn Yeh, Raymond David, Kim Kyoungwang, Sonia Gupta, Masashi Nagai, Kyeora Lee, Yuxiao Wu
  • Publication number: 20210031714
    Abstract: A method for controlling an actuatable safety device for helping to protect a vehicle occupant includes sensing a plurality of vehicle acceleration parameters. The method also includes executing one or more metrics that evaluate the acceleration parameters to determine whether vehicle crash thresholds are exceeded and producing crash event indications in response thereto. The method also includes evaluating the crash event indications to identify a pole side impact, and controlling deployment of the actuatable safety device in response to identifying the pole side impact crash event. In one particular configuration, identifying the pole side impact crash event includes discriminating the pole side impact crash event from a barrier side impact crash event.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 4, 2021
    Inventors: HUAHN-FERN YEH, Charles A. Bartlett
  • Publication number: 20200283350
    Abstract: A multi-purpose putty product usable as a lamp fuel, first aid medication, water proofing agent, water sealant, and UV responsive marker is shown and described. The putty component may include waxes, oils, pine gum rosin, powdered metallic thermite fuel, and cotton fibers. Optionally, the putty may include a colorant and plant essential oil as an odorant. The putty may be provided in kit form, with a receptacle and closure, and a tool enabling putty product in the receptacle to be exposed and held erect for service as a wick while burning.
    Type: Application
    Filed: September 25, 2019
    Publication date: September 10, 2020
    Inventors: William Charles Bartlett, Cheston Davis
  • Publication number: 20190016286
    Abstract: A method for controlling an actuatable restraining device includes sensing a plurality of crash event indications in response to a crash event. The method also includes classifying the crash event in response to comparing the sensed crash event indications against one another to identify an oblique moving deformable barrier crash event. The method further includes controlling deployment timing of the actuatable restraining device in response to the classification of the crash event.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 17, 2019
    Inventors: Charles A. Bartlett, Huahn Yeh, Raymond David, Kim Kyoungwang, Sonia Gupta, Masashi Nagai, Kyeora Lee, Yuxiao Wu