公开(公告)号：US20190178193A1

公开(公告)日：2019-06-13

申请号：US15838220

申请日：2017-12-11

Applicant: Ford Global Technologies, LLC

Inventor： Christopher Paul Glugla ,  Gopichandra Surnilla ,  Imtiaz Ali ,  Lyth Alobiedat ,  Mohannad Hakeem ,  John Eric Rollinger ,  Paul Algis Baltusis

IPC: F02D41/22 ,  F02D15/02 ,  F02D13/02

Abstract: Methods and systems for diagnosing operation of a compression ratio adjusting mechanism are described. In one example, an output of a pressure sensor is sampled and an assessment of the engine's present compression ratio is made after adjusting sampling of the output. Engine operation may be adjusted responsive to whether or not degradation of the compression ratio adjusting mechanism is indicated.

公开(公告)号：US10450983B2

公开(公告)日：2019-10-22

申请号：US15838220

申请日：2017-12-11

Applicant: Ford Global Technologies, LLC

Inventor： Christopher Paul Glugla ,  Gopichandra Surnilla ,  Imtiaz Ali ,  Lyth Alobiedat ,  Mohannad Hakeem ,  John Eric Rollinger ,  Paul Algis Baltusis

IPC: F02D41/22 ,  F02D15/02 ,  F02D13/02 ,  F02D41/12 ,  F02D41/26

Abstract: Methods and systems for diagnosing operation of a compression ratio adjusting mechanism are described. In one example, an output of a pressure sensor is sampled and an assessment of the engine's present compression ratio is made after adjusting sampling of the output. Engine operation may be adjusted responsive to whether or not degradation of the compression ratio adjusting mechanism is indicated.