Patents by Inventor Wai Hwa Fong

Wai Hwa Fong 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: 20230341465
    Abstract: A charge time estimating method includes communicating a target state of charge for a traction battery from a first control module to a second control module that is different than the first control module, using the second control module to establish an estimated amount of energy that is needed to charge the traction battery to the target state of charge, communicating the estimated amount of energy from the second control module to the first control module, and using the first control module to establish an estimated time required to charge the traction battery to the target state of charge. The estimated time is at least partially based on the estimated amount of energy.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 26, 2023
    Inventors: Charles Everett Badger, II, Wai Hwa Fong, Lila Ghannam, Dima Alame, Patterson Abraham
  • Publication number: 20230322087
    Abstract: A vehicle power system includes at least one main switch to electrically connect a traction battery and electric machine, at least one DC charge switch to electrically connect the traction battery and a DC charge port when the at least one main switch is closed, and a controller to, while the DC charge port is disconnected from a DC power source, sequentially close the at least one DC charge switch and then the at least one main switch.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 12, 2023
    Inventors: Graham Lynn Briggs, Yuan Zhang, Jonathan Andrew Butcher, Wai Hwa Fong
  • Patent number: 11705591
    Abstract: A method of detecting a thermal event associated with a battery assembly of an electrified vehicle includes, among other things, obtaining a temperature reading from a sensor associated with an area of the battery assembly, assessing whether the sensor is flagged with a first identifier or a second identifier. The first identifier indicates that the temperature reading is reliable. The second identifier indicates that the temperature reading is unreliable. If the sensor is flagged with the first identifier, the method detects a thermal event associated with the battery assembly based on the temperature reading from the sensor.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: July 18, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Hesam Zomorodi Moghadam, Navid Rahbariasr, Xu Wang, Graham Lynn Briggs, Jeffery R. Grimes, Michael George Schamber, Wai Hwa Fong
  • Publication number: 20220077517
    Abstract: A method of detecting a thermal event associated with a battery assembly of an electrified vehicle includes, among other things, obtaining a temperature reading from a sensor associated with an area of the battery assembly, assessing whether the sensor is flagged with a first identifier or a second identifier. The first identifier indicates that the temperature reading is reliable. The second identifier indicates that the temperature reading is unreliable. If the sensor is flagged with the first identifier, the method detects a thermal event associated with the battery assembly based on the temperature reading from the sensor.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 10, 2022
    Inventors: Hesam Zomorodi Moghadam, Navid Rahbariasr, Xu Wang, Graham Lynn Briggs, Jeffery R. Grimes, Michael George Schamber, Wai Hwa Fong
  • Patent number: 11077760
    Abstract: A vehicle includes a traction battery; a bus; a main contactor between the traction battery and bus; a precharge contactor between the traction battery and bus in parallel with the main contactor; and a controller configured to, responsive to a first precharge mode signal, command a charging station to increase a voltage on the bus and subsequently close the precharge contactor before closing the main contactor, and responsive to a second precharge mode signal, close the precharge contactor without first commanding the charging station to increase the voltage on the bus before closing the main contactor.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: August 3, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Wai Hwa Fong, Yuan Zhang, Navid Rahbari Asr
  • Patent number: 10994617
    Abstract: A system includes a primary monitoring system to determine a battery status of a battery pack and a secondary monitoring system configured to monitor the battery status as communicated by the primary monitoring system over a network. At least one of the primary and secondary monitoring systems generates a warning signal when the battery status comprises a thermal event that reaches a predetermined level.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: May 4, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Navid Rahbari Asr, Jeffery R. Grimes, Wai Hwa Fong
  • Patent number: 10906414
    Abstract: This disclosure describes exemplary electrified vehicle charging systems and methods for charging energy storage devices (e.g., battery packs) of the vehicles. An exemplary charging system may be configured to monitor the electrified vehicle for determining whether either a recoverable vehicle fault or a non-recoverable vehicle fault occurs during a charging event and to automatically command a charging sequence restart without unplugging a charging component from a vehicle inlet assembly in response to detecting the recoverable vehicle fault. The control system may also be configured to provide remote notification about the need to unplug and replug the charging component when the non-recoverable fault is detected or when greater than a predefined number of charging sequence restarts have been attempted.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 2, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Wai Hwa Fong, Jeffery R. Grimes, Navid Rahbari Asr, Charles Everett Badger, II
  • Publication number: 20200269710
    Abstract: A vehicle includes a traction battery; a bus; a main contactor between the traction battery and bus; a precharge contactor between the traction battery and bus in parallel with the main contactor; and a controller configured to, responsive to a first precharge mode signal, command a charging station to increase a voltage on the bus and subsequently close the precharge contactor before closing the main contactor, and responsive to a second precharge mode signal, close the precharge contactor without first commanding the charging station to increase the voltage on the bus before closing the main contactor.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Inventors: Wai Hwa Fong, Yuan Zhang, Navid Rahbari Asr
  • Publication number: 20200189407
    Abstract: This disclosure describes exemplary electrified vehicle charging systems and methods for charging energy storage devices (e.g., battery packs) of the vehicles. An exemplary charging system may be configured to monitor the electrified vehicle for determining whether either a recoverable vehicle fault or a non-recoverable vehicle fault occurs during a charging event and to automatically command a charging sequence restart without unplugging a charging component from a vehicle inlet assembly in response to detecting the recoverable vehicle fault. The control system may also be configured to provide remote notification about the need to unplug and replug the charging component when the non-recoverable fault is detected or when greater than a predefined number of charging sequence restarts have been attempted.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Inventors: Wai Hwa Fong, Jeffery R. Grimes, Navid Rahbari Asr, Charles Everett Badger, II
  • Publication number: 20200156475
    Abstract: A system includes a primary monitoring system to determine a battery status of a battery pack and a secondary monitoring system configured to monitor the battery status as communicated by the primary monitoring system over a network. At least one of the primary and secondary monitoring systems generates a warning signal when the battery status comprises a thermal event that reaches a predetermined level.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 21, 2020
    Inventors: Navid Rahbari Asr, Jeffery R. Grimes, Wai Hwa Fong