公开(公告)号：US11655738B2

公开(公告)日：2023-05-23

申请号：US14958969

申请日：2015-12-04

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Gregory Thomas Roth

IPC: F01M5/00 ,  F01M1/16 ,  F01M5/02 ,  F01M1/08 ,  F01P3/08 ,  F02M26/01 ,  F02B75/12

CPC classification number: F01M5/007 ,  F01M1/08 ,  F01M1/16 ,  F01M5/001 ,  F01M5/002 ,  F01M5/021 ,  F01P3/08 ,  F02B75/12 ,  F02M26/01 ,  F01P2025/40 ,  F01P2037/02 ,  F01P2060/04

Abstract: A piston oil squirter is selectively opened when an oil temperature is below a threshold oil temperature to transfer heat from the combustion chamber and heat the oil more rapidly when the engine is cold.

公开(公告)号：US11454608B2

公开(公告)日：2022-09-27

申请号：US15678194

申请日：2017-08-16

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Gerard Wladyslaw Malaczynski ,  Gregory Thomas Roth

IPC: F01N3/023 ,  G01N27/16 ,  F01N11/00 ,  G01N15/06

Abstract: A method of operating a particulate matter sensor having a pair of spaced apart electrodes and a heater includes accumulating particulate matter on the sensor, thereby changing resistance between the pair of spaced apart electrodes. The particulate matter sensor includes a sensing cycle that includes a deadband zone, followed by an active zone, which is followed by a regeneration zone in which the heater is operated to elevate the temperature of the particulate matter sensor to a first predetermined temperature for a first predetermined time in order to oxidize the particulate matter accumulated on the particulate matter sensor. The method also includes interrupting the sensing cycle with a modified regeneration zone which is either higher in temperature or length than the regeneration zone.

公开(公告)号：US20190056340A1

公开(公告)日：2019-02-21

申请号：US15678194

申请日：2017-08-16

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Gerard Wladyslaw Malaczynski ,  Gregory Thomas Roth

IPC: G01N27/16

Abstract: A method of operating a particulate matter sensor having a pair of spaced apart electrodes and a heater includes accumulating particulate matter on the sensor, thereby changing resistance between the pair of spaced apart electrodes. The particulate matter sensor includes a sensing cycle that includes a deadband zone, followed by an active zone, which is followed by a regeneration zone in which the heater is operated to elevate the temperature of the particulate matter sensor to a first predetermined temperature for a first predetermined time in order to oxidize the particulate matter accumulated on the particulate matter sensor. The method also includes interrupting the sensing cycle with a modified regeneration zone which is either higher in temperature or length than the regeneration zone.

公开(公告)号：US20180348109A1

公开(公告)日：2018-12-06

申请号：US15611218

申请日：2017-06-01

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Gregory Thomas Roth ,  Gerard Wladyslaw Malaczynski

IPC: G01N15/06 ,  F01N3/035 ,  F01N3/023 ,  F01N9/00

CPC classification number: F01N3/023 ,  F01N11/00 ,  F01N2550/22 ,  F01N2560/05 ,  F01N2560/20 ,  F01N2900/0416 ,  F01N2900/1606 ,  G01N15/0606 ,  G01N15/0656 ,  G01N2015/0046

Abstract: A method of operating a particulate matter sensor includes accumulating particulate matter on the sensor, thereby changing resistance between electrodes of the sensor. The sensor provides a signal that varies based upon an amount of the particulate matter on the sensor and includes a measurement cycle that includes a deadband zone in which the resistance is greater than a first predetermined value, followed by an active zone in which the resistance is less than or equal to the first predetermined value, followed by a regeneration zone. A first bias voltage is applied across the electrodes during the deadband zone and a second bias voltage which is less than the first bias voltage is applied across the electrodes during the active zone. An output that is representative of the amount of the particulate matter is calculated after an end of the deadband zone is reached and prior to an end of the measurement cycle.