Invention Grant
US08814750B2 Method and device for controlling a creep mode of a vehicle comprising a hybrid drive
有权
用于控制包括混合驱动器的车辆的蠕变模式的方法和装置
- Patent Title: Method and device for controlling a creep mode of a vehicle comprising a hybrid drive
- Patent Title (中): 用于控制包括混合驱动器的车辆的蠕变模式的方法和装置
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Application No.: US12747145Application Date: 2008-12-02
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Publication No.: US08814750B2Publication Date: 2014-08-26
- Inventor: Johannes Kaltenbach , Stefan Wallner
- Applicant: Johannes Kaltenbach , Stefan Wallner
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Brinks Gilson & Lione
- Priority: DE102007055785 20071213
- International Application: PCT/EP2008/066586 WO 20081202
- International Announcement: WO2009/074484 WO 20090618
- Main IPC: B60W10/02
- IPC: B60W10/02 ; B60W30/188 ; B60W10/08 ; B60W20/00 ; B60W30/18 ; B60K6/48 ; B60W30/184 ; B60W30/186

Abstract:
The invention relates to a method for controlling a creep mode of a vehicle comprising a hybrid drive (1), a drive train (2) which essentially comprises an internal combustion engine (3), an electric machine (5), a gear-shift element (4) arranged between the internal combustion engine (3) and the electric machine (5), a transmission (7) and a power take-off (26). The aim of the invention is to allow an efficient creep mode which is substantially temporally unlimited and reliable and wherein an electrical energy storage device (14) is used as little as possible. The method according to the invention is characterized in that primarily the gear-shift element (4) is used when the internal combustion engine (3) is running and secondarily, depending on a monitoring of defined operation parameters of the gear-shift element (4) and/or of variables relevant for the creep mode, the electric machine (5) is used to implement the creep mode. A device for carrying out the method comprises control and monitoring means (21, 22, 25, 27) which are used for producing a creep torque, taking into consideration an admissible load of the gear-shift element (4), primarily by operating the gear-shift element (4) in a slip mode and secondarily by operating the electric machine (5) in a creep mode.
Public/Granted literature
- US20110045947A1 METHOD AND DEVICE FOR CONTROLLING A CREEP MODE OF A VEHICLE COMPRISING A HYBRID DRIVE Public/Granted day:2011-02-24
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