公开(公告)号：US09752539B2

公开(公告)日：2017-09-05

申请号：US15140439

申请日：2016-04-27

Applicant: GM Global Technology Operations LLC

Inventor： Darrell W. Burleigh ,  Sergio Quelhas ,  Lawrence A. Staat ,  Kenneth C. Swartz

IPC: F02M33/04 ,  F02M25/08

CPC classification number: F02M25/0854 ,  F02M25/0818 ,  F02M25/0836 ,  F02M2025/0845

Abstract: A vapor purge system for an engine, includes a purge valve having a housing including an input port in communication with a purge canister and including an output port in communication with an intake system component defining a first bore portion receiving the output port with a first seal member disposed therebetween. The intake system component includes a second bore portion receiving a housing portion of the purge valve with a second seal member disposed therebetween. The first and second seal members are spaced such that when the housing is pulled away from the intake system component and the first seal member is out of engagement between the first bore and the output port, the second seal member can remain in engagement so that a diagnostic module can diagnose detachment of the purge valve from the intake system before any hydrocarbon vapor can be released into the atmosphere.

公开(公告)号：US09771884B2

公开(公告)日：2017-09-26

申请号：US14614778

申请日：2015-02-05

Applicant: GM Global Technology Operations LLC

Inventor： Darrell W. Burleigh ,  Christopher P. Musienko ,  Kenneth C. Swartz

IPC: F02D41/00 ,  F02M25/08 ,  F02D41/30 ,  F02D41/20

CPC classification number: F02D41/004 ,  F02D41/3082 ,  F02D2041/2058 ,  F02M25/0836 ,  F02M25/0854 ,  F02M25/089

Abstract: A system according to the present disclosure includes a pump operating parameter module and a purge flow control module. The pump operating parameter module determines a value of an operating parameter of a purge pump that delivers purge fluid from a canister in an evaporative emissions system to an intake system of an engine. The operating parameter of the purge pump includes at least one of a speed of the purge pump, an amount of current supplied to the purge pump, and an amount of power supplied to the purge pump. The purge flow control module controls at least one of a purge valve and the purge pump to adjust an amount of purge fluid delivered to a cylinder of an engine based on the determined value of the operating parameter of the purge pump.

公开(公告)号：US09562499B2

公开(公告)日：2017-02-07

申请号：US14539187

申请日：2014-11-12

Applicant: GM Global Technology Operations LLC

Inventor： Kenneth C. Swartz ,  Miles K. Maxey

IPC: F02M25/08 ,  F02D41/00 ,  F02D41/22

CPC classification number: F02M25/0818 ,  F02D41/003 ,  F02D41/004 ,  F02D41/22 ,  F02D41/221 ,  F02D2041/225 ,  F02D2200/0602 ,  F02M25/0836 ,  Y02T10/40

Abstract: A diagnostic system for a vehicle includes a purge valve control module that closes a purge valve. The purge valve regulates fuel vapor flow from a fuel vapor canister to an intake system of an engine. A pump control module, after the closing of the purge valve, turns on a pump that pumps fuel vapor toward the purge valve. A first pressure module, after the purge valve is closed, determines a first pressure measured using a pressure sensor located between the pump and the purge valve. A second pressure module, after the determination of the first pressure and while the pump is on, determines a second pressure measured using the pressure sensor located between the pump and the purge valve. A diagnostic module selectively diagnoses detachment of the purge valve from the intake system based on the first and second pressures.

Abstract translation: 用于车辆的诊断系统包括关闭排气阀的排气阀控制模块。 净化阀调节从燃料蒸汽罐到发动机的进气系统的燃料蒸气流。 泵控制模块在关闭清洗阀之后，打开一个将燃料蒸汽向排气阀泵送的泵。 第一压力模块在吹扫阀关闭之后确定使用位于泵和排气阀之间的压力传感器测量的第一压力。 第二压力模块在第一压力的确定和泵打开之后确定使用位于泵和净化阀之间的压力传感器测量的第二压力。 诊断模块基于第一和第二压力选择性地诊断排气阀与进气系统的分离。

公开(公告)号：US20160123254A1

公开(公告)日：2016-05-05

申请号：US14614778

申请日：2015-02-05

Applicant: GM Global Technology Operations LLC.

Inventor： Darrell W. BURLEIGH ,  Christopher P. Musienko ,  Kenneth C. Swartz

IPC: F02D41/00 ,  F02M25/08

CPC classification number: F02D41/004 ,  F02D41/3082 ,  F02D2041/2058 ,  F02M25/0836 ,  F02M25/0854 ,  F02M25/089

Abstract: A system according to the present disclosure includes a pump operating parameter module and a purge flow control module. The pump operating parameter module determines a value of an operating parameter of a purge pump that delivers purge fluid from a canister in an evaporative emissions system to an intake system of an engine. The operating parameter of the purge pump includes at least one of a speed of the purge pump, an amount of current supplied to the purge pump, and an amount of power supplied to the purge pump. The purge flow control module controls at least one of a purge valve and the purge pump to adjust an amount of purge fluid delivered to a cylinder of an engine based on the determined value of the operating parameter of the purge pump.

Abstract translation: 根据本公开的系统包括泵操作参数模块和清洗流控制模块。 泵操作参数模块确定将净化流体从蒸发排放系统中的罐输送到发动机的进气系统的净化泵的操作参数的值。 清洗泵的操作参数包括净化泵的速度，提供给净化泵的电流量和供应到净化泵的功率量中的至少一个。 吹扫流量控制模块基于确定的净化泵的操作参数的值来控制排放阀和净化泵中的至少一个，以调节输送到发动机气缸的净化流体的量。