Patents by Inventor John Lahti

John Lahti 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: 20260097684
    Abstract: An example method of optimized energy management includes creating a synthetic training dataset, where the synthetic training dataset includes a activity profiles for a period of time; training a deep learning model using the synthetic training dataset; predicting, using the trained deep learning model, a power load for the period of time; determining a projected state of charge (SOC) of an energy storage device during the period of time based, at least in part, on the predicted power load; and controlling charging operations for the energy storage device based on the projected SOC.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 9, 2026
    Inventors: Satvik KHUNTIA, Athar HANIF, Qadeer AHMED, Maarten MEIJER, Charles SWART, John LAHTI, Iner JORGENSEN, Shweta HARDAS
  • Patent number: 12320287
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Grant
    Filed: September 9, 2024
    Date of Patent: June 3, 2025
    Assignee: PACCAR Inc
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Publication number: 20250092809
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 20, 2025
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Patent number: 12085001
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: September 10, 2024
    Assignee: PACCAR Inc
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Publication number: 20240060439
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Application
    Filed: June 28, 2023
    Publication date: February 22, 2024
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Patent number: 11725560
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 15, 2023
    Assignee: PACCAR INC
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Patent number: 11465622
    Abstract: Systems and methods for predictive adaptive cruise control of a plurality of vehicles traveling in succession. A system engages in a vehicle-to-vehicle communication session with one or more vehicles of the plurality of vehicles. During the communication session, terrain information is obtained and first speed trajectory information is determined for an upcoming segment of road. Second speed trajectory information is received from a first adjacent vehicle of the plurality of vehicles. Third speed trajectory information is generated based on the second speed trajectory information received and the terrain information. The operation of the vehicle is controlled during the upcoming segment according to the third speed trajectory information.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: October 11, 2022
    Assignee: PACCAR Inc
    Inventors: John Lahti, Christopher S. Balton, Alexander E. Schramm, Charles Wayne Reinhardt Swart
  • Publication number: 20220025805
    Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
    Type: Application
    Filed: August 25, 2020
    Publication date: January 27, 2022
    Inventors: Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
  • Publication number: 20210213948
    Abstract: Systems and methods for predictive adaptive cruise control of a plurality of vehicles traveling in succession. A system engages in a vehicle-to-vehicle communication session with one or more vehicles of the plurality of vehicles. During the communication session, terrain information is obtained and first speed trajectory information is determined for an upcoming segment of road. Second speed trajectory information is received from a first adjacent vehicle of the plurality of vehicles. Third speed trajectory information is generated based on the second speed trajectory information received and the terrain information. The operation of the vehicle is controlled during the upcoming segment according to the third speed trajectory information.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 15, 2021
    Inventors: John Lahti, Christopher S. Balton, Alexander E. Schramm, Charles Wayne Reinhardt Swart
  • Publication number: 20070156325
    Abstract: A module that calculates power loss for an internal combustion engine includes an air intake calculation module that determines a final air per cylinder (APC) value. A fuel mass rate calculation module that determines a fuel mass rate value based on the final APC value. A power loss calculation module that determines a power loss value for the internal combustion engine based on the fuel mass rate value.
    Type: Application
    Filed: December 19, 2006
    Publication date: July 5, 2007
    Inventors: Michael Livshiz, John Blanchard, John Lahti, Anthony Heap
  • Publication number: 20070088487
    Abstract: A control system for an internal combustion engine includes a virtual engine model which mathematically represents the states of the engine in real time, but which is programmed to provide the engine's states at least a fraction of an engine cycle (and preferably at least one-fourth of an engine cycle, i.e., one stroke) to several engine cycles in advance of the real engine. The mass flow entering and leaving the cylinder is modeled, allowing parameters such as the mass of air per cylinder (MAC) and residual exhaust gas to be computed, and thereafter used to generate engine control commands related to fuel injection (air/fuel ratio), spark advance, and so forth.
    Type: Application
    Filed: March 31, 2006
    Publication date: April 19, 2007
    Inventors: John Lahti, John Moskwa
  • Publication number: 20060190160
    Abstract: A testing device allows a test engine (such as a single-cylinder test engine) to experience the air exchange characteristics of a multi-cylinder test engine having a greater number of cylinders. The test engine receives air from an air source (such as the atmosphere) through the interior passage of an air intake adapter, wherein valves on the passage walls separate the interior passage from a negative or positive pressure source. A processor (such as a computer) may actuate the valves to allow air to be pulled from the passage to simulate the effect of air intake into additional virtual cylinders (i.e., cylinders that would operate in tandem with the cylinder(s) of the test engine if the test engine had a greater number of cylinders), and/or to simulate the effect of forced air induction (i.e., turbocharging or supercharging).
    Type: Application
    Filed: February 23, 2005
    Publication date: August 24, 2006
    Inventors: John Moskwa, John Lahti, Matthew Snyder