-
公开(公告)号：US20250067766A1
公开(公告)日：2025-02-27
申请号：US18454937
申请日：2023-08-24
Applicant: FCA US LLC
Inventor： Mohammed Nadeem Akhtar , Scott E Henson , Stephanie R Beck , Roger C Sager , Anthony N Gorney
Abstract: A method of rationalizing operation of a vehicle longitudinal accelerometer is provided. The method includes the steps of receiving an output signal from a wheel speed sensor, receiving an output signal from a longitudinal accelerometer, determining whether an acceleration event exists based on the output signal from the wheel speed sensor, evaluating the longitudinal accelerometer sensor output signal during the acceleration event, and determining whether the longitudinal accelerometer sensor signal exceeds a set threshold value during the acceleration event.
-
公开(公告)号：US12180870B1
公开(公告)日：2024-12-31
申请号：US18342342
申请日：2023-06-27
Applicant: FCA US LLC
Inventor： Steven C Wante , Roger C Sager
Abstract: An engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass passage and a bypass catalytic converter. An emissions control system includes a controller in signal communication with an oxygen sensor disposed downstream of the bypass catalytic converter. The emissions control system performs a diagnostic of the bypass catalytic converter, by the controller, including (i) monitoring signals from the downstream oxygen sensor for a predetermined time period during an engine cold start condition, (ii) determining a curve plotting oxygen content at the downstream oxygen sensor over the predetermined time period, based on the signals from the downstream oxygen sensor, (iii) determining a number of times the curve crosses a predetermined setpoint over the predetermined time period, and (iv) comparing the number to a predetermined threshold to determine if the bypass catalytic converter has failed.
-
公开(公告)号：US20240093634A1
公开(公告)日：2024-03-21
申请号：US17947462
申请日：2022-09-19
Applicant: FCA US LLC
Inventor： Roger C Sager , Steven C Wante , Aurora J White , Robert L Roy , Daniel E Hornback , Matthew T Bartlett
CPC classification number: F01P11/14 , B60K11/085 , F01P2025/08
Abstract: A vehicle includes a component coated with a pollutant reduction catalyst configured to remove pollutants from a flow of air over the component, a catalyst temperature sensor coupled to the component, a general temperature sensor, a vehicle speed sensor, and an active grille shutter (AGS) system having a plurality of movable grille shutters. A controller is configured to determine an efficiency of the pollutant reduction catalyst based on signals from the catalyst temperature sensor, the general temperature sensor, the vehicle speed sensor, and the AGS system.
-
公开(公告)号：US12188397B2
公开(公告)日：2025-01-07
申请号：US17947462
申请日：2022-09-19
Applicant: FCA US LLC
Inventor： Roger C Sager , Steven C Wante , Aurora J White , Robert L Roy , Daniel E Hornback , Matthew T Bartlett
Abstract: A vehicle includes a component coated with a pollutant reduction catalyst configured to remove pollutants from a flow of air over the component, a catalyst temperature sensor coupled to the component, a general temperature sensor, a vehicle speed sensor, and an active grille shutter (AGS) system having a plurality of movable grille shutters. A controller is configured to determine an efficiency of the pollutant reduction catalyst based on signals from the catalyst temperature sensor, the general temperature sensor, the vehicle speed sensor, and the AGS system.
-
公开(公告)号：US20250003362A1
公开(公告)日：2025-01-02
申请号：US18342342
申请日：2023-06-27
Applicant: FCA US LLC
Inventor： Steven C Wante , Roger C Sager
Abstract: An engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass passage and a bypass catalytic converter. An emissions control system includes a controller in signal communication with an oxygen sensor disposed downstream of the bypass catalytic converter. The emissions control system performs a diagnostic of the bypass catalytic converter, by the controller, including (i) monitoring signals from the downstream oxygen sensor for a predetermined time period during an engine cold start condition, (ii) determining a curve plotting oxygen content at the downstream oxygen sensor over the predetermined time period, based on the signals from the downstream oxygen sensor, (iii) determining a number of times the curve crosses a predetermined setpoint over the predetermined time period, and (iv) comparing the number to a predetermined threshold to determine if the bypass catalytic converter has failed.
-
Patent Agency Ranking
公开(公告)号：US12055080B1
公开(公告)日：2024-08-06
申请号：US18342379
申请日：2023-06-27
Applicant: FCA US LLC
Inventor： Steven C Wante , Roger C Sager
CPC classification number: F01N11/007 , F01N3/20 , F01N13/011 , F01N2410/06 , F01N2560/025 , F01N2900/0416 , F01N2900/1624
Abstract: An engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass catalytic converter. An emissions control system includes a controller in signal communication with a first oxygen sensor disposed upstream of the bypass catalytic converter, and a second oxygen sensor disposed downstream of the bypass catalytic converter. The emissions control system performs a diagnostic of the bypass catalytic converter, including (i) monitoring signals from the first and second oxygen sensors for a predetermined time period during an engine cold start condition, (ii) determining a signal average of the first oxygen sensor (iii) determining a signal average of the second oxygen sensor, (iv) determining a difference between the signal averages of the first and second oxygen sensors, and (v) comparing the difference to a predetermined threshold to determine if the bypass catalytic converter has failed.
-
公开(公告)号：US12092003B1
公开(公告)日：2024-09-17
申请号：US18342327
申请日：2023-06-27
Applicant: FCA US LLC
Inventor： Steven C Wante , Roger C Sager
CPC classification number: F01N11/007 , F01N3/2892 , F01N13/008 , F01N13/0093 , F01N13/10 , F02B37/183 , F01N2550/02 , F01N2550/10
Abstract: An engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass passage and a bypass catalytic converter. An emissions control system includes a controller in signal communication with an oxygen sensor disposed downstream of the bypass catalytic converter. The emissions control system performs a diagnostic of the bypass catalytic converter, by the controller, including (i) monitoring signals from the downstream oxygen sensor for a predetermined time period during an engine cold start condition, (ii) determining a curve plotting oxygen content at the downstream oxygen sensor over the predetermined time period, based on the signals from the downstream oxygen sensor, (iii) calculating an accumulated area under the curve over the predetermined time period, and (iv) comparing the calculated accumulated area to a predetermined threshold to determine if the bypass catalytic converter has failed.
-
公开(公告)号：US12012882B1
公开(公告)日：2024-06-18
申请号：US18342309
申请日：2023-06-27
Applicant: FCA US LLC
Inventor： Steven C Wante , Roger C Sager
CPC classification number: F01N11/007 , F01N3/2892 , F01N13/008 , F01N13/0093 , F02B37/183 , G01M15/104 , G07C5/0808 , G07C5/0825 , F01N2410/06 , F01N2550/02 , F01N2550/10 , F01N2560/025 , F01N2900/0416 , F01N2900/0418 , F01N2900/1624
Abstract: An internal combustion engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass passage and a bypass catalytic converter. An emissions control system includes a controller in signal communication with a first oxygen sensor disposed upstream of the bypass catalytic converter, and a second oxygen sensor disposed downstream. The emissions control system performs a diagnostic of the bypass catalytic converter, by the controller, including (i) monitoring signals from the first and second oxygen sensors for a predetermined time period during an engine cold start condition, (ii) determining a ratio of oxygen content at the second oxygen to the first oxygen sensor based on the signals from the first and second oxygen sensors, and (iii) comparing the determined ratio to a predetermined threshold ratio to determine if the bypass catalytic converter has failed.
-
公开(公告)号：US10247116B2
公开(公告)日：2019-04-02
申请号：US15164464
申请日：2016-05-25
Applicant: FCA US LLC
Inventor： Joseph Dekar , Roger C Sager , James J Daley , William B Blomquist , Jeffrey P Wuttke , Russell J Wakeman , Adam Fleischman , Ronald A Yannone, Jr. , Luis Del Rio , Mark L Lott , Edward Baker , Michael T Vincent , Wei-Jun Yang , Aikaterini Tsahalou
Abstract: An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.
-
公开(公告)号：US20250001985A1
公开(公告)日：2025-01-02
申请号：US18344493
申请日：2023-06-29
Applicant: FCA US LLC
Inventor： Scott E Henson , Stephanie R Beck , Roger C Sager , Anthony N Gorney , Mohammed N Akhtar
Abstract: A method of rationalizing operation of a vehicle wheel speed sensor is provided. The method includes the steps of receiving an output signal from a longitudinal accelerometer, receiving an output signal from a wheel speed sensor, determining whether an acceleration event exists based on the output signal from the longitudinal accelerometer, evaluating the wheel speed sensor output signal during the acceleration event, and determining whether the wheel speed sensor signal exceeds a set threshold value during the acceleration event.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.013 seconds)
