公开(公告)号：US10589746B1

公开(公告)日：2020-03-17

申请号：US16113604

申请日：2018-08-27

Applicant: GM Global Technology Operations LLC

Inventor： Derek W. Johnson ,  David T. Hanner ,  Shaun D. Hoffman

IPC: B60W30/20

Abstract: A method for mitigating clunk in a driveline of a vehicle system during a declutch event includes determining a current torque request of a prime mover based on an accelerator pedal position of an accelerator pedal of the vehicle system. The method includes determining a clutch pedal position and determining, via a controller, a clutch pedal speed based on a change of the clutch pedal position over time. The method further includes modifying, via the controller, the current torque request to obtain a modified torque request based on the clutch pedal position and the clutch pedal speed such that a stored potential energy in the driveline is minimized by a time that the clutch pedal of the vehicle system is disengaged during the declutch event.

公开(公告)号：US09835280B2

公开(公告)日：2017-12-05

申请号：US14955616

申请日：2015-12-01

Applicant: GM Global Technology Operations LLC

Inventor： David T. Hanner ,  Robert N. Paciotti ,  David J. Theis

IPC: F16L55/04 ,  F16L55/05 ,  F16D25/12 ,  F16D48/02

CPC classification number: F16L55/041 ,  F16D25/12 ,  F16D48/02 ,  F16D2048/0215 ,  F16D2048/023 ,  F16D2300/22 ,  F16L55/05

Abstract: An expansion chamber device for clutch pedal vibration attenuation includes a cylindrical body having an inlet line integrally connected to and penetrating through a first end wall of the body. At an opposite end of the body from the first end wall is a discharge line integrally connected to and penetrating a second end wall of the body. A diameter of the expansion chamber device is approximately 3.8 cm and a length of the expansion chamber device ranges between approximately 10.2 cm to 15.2 cm. The expansion chamber device reduces vehicle and engine vibrations in a path including a clutch pedal over a frequency range between approximately 50 Hz to approximately 225 Hz.

公开(公告)号：US20200062263A1

公开(公告)日：2020-02-27

申请号：US16113604

申请日：2018-08-27

Applicant: GM Global Technology Operations LLC

Inventor： Derek W. Johnson ,  David T. Hanner ,  Shaun D. Hoffman

IPC: B60W30/20

Abstract: A method for mitigating clunk in a driveline of a vehicle system during a declutch event includes determining a current torque request of a prime mover based on an accelerator pedal position of an accelerator pedal of the vehicle system. The method includes determining a clutch pedal position and determining, via a controller, a clutch pedal speed based on a change of the clutch pedal position over time. The method further includes modifying, via the controller, the current torque request to obtain a modified torque request based on the clutch pedal position and the clutch pedal speed such that a stored potential energy in the driveline is minimized by a time that the clutch pedal of the vehicle system is disengaged during the declutch event.

公开(公告)号：US20170067590A1

公开(公告)日：2017-03-09

申请号：US14955616

申请日：2015-12-01

Applicant: GM Global Technology Operations LLC

Inventor： David T. Hanner ,  Robert N. Paciotti ,  David J. Theis

IPC: F16L55/04 ,  F16D48/02 ,  F16D25/12

CPC classification number: F16L55/041 ,  F16D25/12 ,  F16D48/02 ,  F16D2048/0215 ,  F16D2048/023 ,  F16D2300/22 ,  F16L55/05

Abstract: An expansion chamber device for clutch pedal vibration attenuation includes a cylindrical body having an inlet line integrally connected to and penetrating through a first end wall of the body. At an opposite end of the body from the first end wall is a discharge line integrally connected to and penetrating a second end wall of the body. A diameter of the expansion chamber device is approximately 3.8 cm and a length of the expansion chamber device ranges between approximately 10.2 cm to 15.2 cm. The expansion chamber device reduces vehicle and engine vibrations in a path including a clutch pedal over a frequency range between approximately 50 Hz to approximately 225 Hz.

Abstract translation: 用于离合器踏板振动衰减的膨胀室装置包括圆柱体，其具有与主体的第一端壁一体连接并穿过主体的第一端壁的入口线。 在距离第一端壁的主体的相对端处是与主体的第二端壁一体地连接并且穿过主体的第二端壁的排出线。 膨胀室装置的直径约为3.8cm，膨胀室装置的长度在约10.2cm至15.2cm之间。 膨胀室装置在大约50Hz到大约225Hz之间的频率范围内减少包括离合器踏板的路径中的车辆和发动机振动。