公开(公告)号：US20140102565A1

公开(公告)日：2014-04-17

申请号：US13651533

申请日：2012-10-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Jackson ,  William R. Cadman ,  Paul William Rasmussen

IPC: F04B49/00 ,  F04C14/00

CPC classification number: F02M25/0809 ,  F02M65/003 ,  F04C18/3441 ,  F04C25/02 ,  F04C28/06 ,  G01M99/008 ,  Y10T137/85986

Abstract: A control system according to the principles of the present disclosure includes a fuel system diagnostic module and a pump control module. The fuel system diagnostic module performs a diagnostic test on a fuel system when a vacuum pump is switched off to prevent flow through the vacuum pump and thereby seal a portion of the fuel system from an atmosphere. The vacuum pump includes a cam ring, a rotor that rotates within the cam ring, and vanes that slide into and out of slots in the rotor as the rotor rotates. The pump control module switches on the vacuum pump for a predetermined period to force the vanes out of the slots and into contact with the cam ring to seal the vacuum pump before switching off the vacuum pump for the fuel system diagnostic test.

Abstract translation: 根据本公开的原理的控制系统包括燃料系统诊断模块和泵控制模块。 当真空泵关闭时，燃料系统诊断模块对燃料系统进行诊断测试，以防止流过真空泵，从而将燃料系统的一部分与大气密封。 真空泵包括凸轮环，在凸轮环内旋转的转子和当转子旋转时滑入和转出转子中的槽的叶片。 泵控制模块在预定时间内接通真空泵，以迫使叶片离开槽并与凸轮环接触，以在切断用于燃料系统诊断测试的真空泵之前密封真空泵。

公开(公告)号：US09682628B2

公开(公告)日：2017-06-20

申请号：US14603536

申请日：2015-01-23

Applicant: GM Global Technology Operations LLC

Inventor： Darrell W. Burleigh ,  Martino Casetti ,  William R. Cadman

IPC: F02M33/02 ,  B60L7/26 ,  F02D41/00 ,  F02M25/08

CPC classification number: B60L7/26 ,  B60W10/00 ,  F02D41/004 ,  F02M25/0809 ,  F02M2025/0881

Abstract: An energy module determines an amount of energy consumed by an electric heater of a fuel vapor canister since an ignition system of the vehicle was last transitioned from OFF to ON. A purge valve control module controls opening a purge valve while the ignition system of the vehicle is ON, wherein fuel vapor flows from the vapor canister through the purge valve to an air intake system when the purge valve is open. A heater control module selectively applies power to the electric heater of the fuel vapor canister and, based on at least one of the amount of energy consumed by the electric heater and a mass of fuel vapor that has flowed through the purge valve, selectively disconnects the electric heater from the power until after the ignition system is transitioned from ON to OFF.

公开(公告)号：US20160138528A1

公开(公告)日：2016-05-19

申请号：US14603536

申请日：2015-01-23

Applicant: GM Global Technology Operations LLC

Inventor： Darrell W. BURLEIGH ,  Martino Casetti ,  William R. Cadman

IPC: F02M25/08

CPC classification number: B60L7/26 ,  B60W10/00 ,  F02D41/004 ,  F02M25/0809 ,  F02M2025/0881

Abstract: An energy module determines an amount of energy consumed by an electric heater of a fuel vapor canister since an ignition system of the vehicle was last transitioned from OFF to ON. A purge valve control module controls opening a purge valve while the ignition system of the vehicle is ON, wherein fuel vapor flows from the vapor canister through the purge valve to an air intake system when the purge valve is open. A heater control module selectively applies power to the electric heater of the fuel vapor canister and, based on at least one of the amount of energy consumed by the electric heater and a mass of fuel vapor that has flowed through the purge valve, selectively disconnects the electric heater from the power until after the ignition system is transitioned from ON to OFF.

Abstract translation: 能量模块确定燃料蒸汽罐的电加热器消耗的能量的量，因为车辆的点火系统最后从OFF转换到ON。 当车辆的点火系统接通时，排气阀控制模块控制打开排气阀，其中当净化阀打开时，燃料蒸汽从蒸汽罐通过排放阀流动到进气系统。 加热器控制模块选择性地向燃料蒸气罐的电加热器施加电力，并且基于电加热器消耗的能量的量和已经流过净化阀的燃料蒸汽的质量中的至少一个，选择性地断开 电加热器从电源直到点火系统从ON转换到OFF。

公开(公告)号：US09038489B2

公开(公告)日：2015-05-26

申请号：US13651533

申请日：2012-10-15

Applicant: GM Global Technology Operations LLC

Inventor： Robert Jackson ,  William R. Cadman ,  Paul William Rasmussen

IPC: G01M15/00 ,  G01M15/09 ,  G01L23/24 ,  F02M25/08 ,  F02M65/00 ,  G01M99/00 ,  F04C25/02 ,  F04C28/06 ,  F04C18/344

CPC classification number: F02M25/0809 ,  F02M65/003 ,  F04C18/3441 ,  F04C25/02 ,  F04C28/06 ,  G01M99/008 ,  Y10T137/85986

Abstract: A control system according to the principles of the present disclosure includes a fuel system diagnostic module and a pump control module. The fuel system diagnostic module performs a diagnostic test on a fuel system when a vacuum pump is switched off to prevent flow through the vacuum pump and thereby seal a portion of the fuel system from an atmosphere. The vacuum pump includes a cam ring, a rotor that rotates within the cam ring, and vanes that slide into and out of slots in the rotor as the rotor rotates. The pump control module switches on the vacuum pump for a predetermined period to force the vanes out of the slots and into contact with the cam ring to seal the vacuum pump before switching off the vacuum pump for the fuel system diagnostic test.

Abstract translation: 根据本公开的原理的控制系统包括燃料系统诊断模块和泵控制模块。 当真空泵关闭时，燃料系统诊断模块对燃料系统进行诊断测试，以防止流过真空泵，从而将燃料系统的一部分与大气密封。 真空泵包括凸轮环，在凸轮环内旋转的转子和当转子旋转时滑入和转出转子中的槽的叶片。 泵控制模块在预定时间内接通真空泵，以迫使叶片离开槽并与凸轮环接触，以在切断用于燃料系统诊断测试的真空泵之前密封真空泵。