Invention Grant
US07931560B2 Method and arrangement for adapting shifting strategies in a heavy vehicle including an automated transmission and experiencing a PTO load
有权
在包括自动变速器和经历PTO负载的重型车辆中适应变速策略的方法和装置
- Patent Title: Method and arrangement for adapting shifting strategies in a heavy vehicle including an automated transmission and experiencing a PTO load
- Patent Title (中): 在包括自动变速器和经历PTO负载的重型车辆中适应变速策略的方法和装置
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Application No.: US12064999Application Date: 2006-09-08
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Publication No.: US07931560B2Publication Date: 2011-04-26
- Inventor: Svante Karlsson , Erik Lauri
- Applicant: Svante Karlsson , Erik Lauri
- Applicant Address: SE Göteborg
- Assignee: Volvo Lastvagnar AB
- Current Assignee: Volvo Lastvagnar AB
- Current Assignee Address: SE Göteborg
- Agency: WRB-IP LLP
- International Application: PCT/SE2006/001031 WO 20060908
- International Announcement: WO2007/030070 WO 20070315
- Main IPC: B60W10/06
- IPC: B60W10/06 ; B60W10/10
Abstract:
Method and arrangement for adjusting shift characteristics of a transmission of a heavy vehicle. A heavy vehicle is operated and that is powered by an internal combustion engine equipped with an automated manual transmission and a power take off. The power take off, when operating, imposes a torque-consuming load on the engine. Operation of the power take off is detected when the engine of the vehicle is in a power mode. At least one gear-shift event is adapted to occur at a higher engine speed when power take off operation is detected than when power take off operation is not detected. The gear-shift event is affected at an engine speed that is approximately five to twenty-five percent higher than when power take off operation is not detected. The gear-shift event may be an up-shift to a lower ratio gear engagement or a down-shift to a higher ratio gear engagement.
Public/Granted literature
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