公开(公告)号：US20160305358A1

公开(公告)日：2016-10-20

申请号：US15193897

申请日：2016-06-27

Applicant: Robert Stack ,  Jonathan D. Stoffer

Inventor： Robert Stack ,  Jonathan D. Stoffer

IPC: F02D41/22 ,  F02D41/26 ,  G01M15/09 ,  F02D41/12

CPC classification number: F02D41/222 ,  F02D41/123 ,  F02D41/26 ,  F02D2041/223 ,  F02D2041/228 ,  F02D2200/0602 ,  F02M65/003 ,  G01M15/09

Abstract: A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.

公开(公告)号：US20150159574A1

公开(公告)日：2015-06-11

申请号：US14101966

申请日：2013-12-10

Applicant: Robert Stack ,  Jonathan D. Stoffer

Inventor： Robert Stack ,  Jonathan D. Stoffer

IPC: F02D41/22 ,  F02M65/00 ,  F02D41/26 ,  G01M15/09

CPC classification number: F02D41/222 ,  F02D41/123 ,  F02D41/26 ,  F02D2041/223 ,  F02D2041/228 ,  F02D2200/0602 ,  F02M65/003 ,  G01M15/09

Abstract: A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.

Abstract translation: 第一种计算机实现的诊断方法可以响应即将来临的减速燃料切断（DFCO）事件而运行。 第二台计算机实现的诊断方法可以在发动机停机时运行。 这两种诊断方法包括控制燃料喷射器和燃料泵，以使燃料轨压力从期望的最小值变化到期望的最大值。 然后可以使用这些端点处的燃油轨压力传感器进行测量，以检测燃油轨压力传感器的故障。 可以实现一种或两种诊断方法。

公开(公告)号：US20200332737A1

公开(公告)日：2020-10-22

申请号：US16387677

申请日：2019-04-18

Applicant: Ethan E Bayer ,  Jonathan D. Stoffer ,  David A. Lawrence ,  William P. Attard ,  Tyler Tutton

Inventor： Ethan E Bayer ,  Jonathan D. Stoffer ,  David A. Lawrence ,  William P. Attard ,  Tyler Tutton

IPC: F02D41/22 ,  F02D41/14 ,  F02D41/00 ,  G07C5/08

Abstract: A low speed pre-ignition detection, mitigation, and driver notification system and method utilize a controller to analyze a knock signal from a knock sensor to detect LSPI knock of the engine and in response to detecting the LSPI knock, enrich a fuel/air ratio of the engine and limit a torque output of the engine to a level that is less than a maximum torque output of the engine, and when enriching the fuel/air ratio of the engine and limiting the torque output of the engine does not mitigate the LSPI knock, output at least one message for a driver of the vehicle instructing the driver to take remedial action to mitigate the LSPI knock.