Patents by Inventor John Wathen

John Wathen 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: 20260185494
    Abstract: Systems and methods directed to active control of an engine braking operation. One aspect is directed to an engine braking control system for a vehicle. The system includes an electronic processor configured to receive a deceleration request, determine a base engine braking level based on a vehicle speed and a vehicle gear, and adjust the base engine braking level according to a brake pressure of the vehicle. The electronic processor is further configured to generate, based on the adjusted base engine braking level and the deceleration request, a target deceleration profile, determine, based on the target deceleration profile, an engine torque demand, and control an engine braking operation of the vehicle by adjusting a torque of an engine of the vehicle according to the engine torque demand, wherein the engine torque demand is updated during the engine braking operation.
    Type: Application
    Filed: December 30, 2024
    Publication date: July 2, 2026
    Inventors: Bijith T G Pillai, John Wathen, Rajit Jayachandran
  • Patent number: 6820604
    Abstract: A fuel injection system in an engine. The system includes a throttle body having a throttle valve, a first sensor, and a control unit coupled to the first sensor. The first sensor measures a sensed throttle valve angle and provides a first output corresponding to the sensed throttle valve angle. The control unit is operable to receive the output generated by the first sensor, operable to compute an expected throttle valve angle, operable to determine an offset between the expected throttle valve angle and the sensed throttle valve angle, operable to determine a corrected throttle valve angle, and operable to compute fueling calculations based on the corrected throttle valve angle. The corrected throttle valve angle is based on the offset and the sensed throttle valve angle.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 23, 2004
    Assignee: Robert Bosch Corporation
    Inventors: Carolyn Chong, John Wathen
  • Publication number: 20040134463
    Abstract: A fuel injection system in an engine. The system includes a throttle body having a throttle valve, a first sensor, and a control unit coupled to the first sensor. The first sensor measures a sensed throttle valve angle and provides a first output corresponding to the sensed throttle valve angle. The control unit is operable to receive the output generated by the first sensor, operable to compute an expected throttle valve angle, operable to determine an offset between the expected throttle valve angle and the sensed throttle valve angle, operable to determine a corrected throttle valve angle, and operable to compute fueling calculations based on the corrected throttle valve angle. The corrected throttle valve angle is based on the offset and the sensed throttle valve angle.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Applicant: ROBERT BOSCH CORPORATION
    Inventors: Carolyn Chong, John Wathen
  • Patent number: D1130797
    Type: Grant
    Filed: February 2, 2024
    Date of Patent: June 16, 2026
    Assignee: Beltway Products Inc.
    Inventors: John Wathen, Mark Jacobsen