发明申请
US20140019020A1 METHOD FOR CONTROLLING A GEAR BRAKE FOR AN AUTOMATED CHANGE-SPEED GEARBOX
有权
用于控制自动变速齿轮箱的齿轮制动的方法
- 专利标题: METHOD FOR CONTROLLING A GEAR BRAKE FOR AN AUTOMATED CHANGE-SPEED GEARBOX
- 专利标题(中): 用于控制自动变速齿轮箱的齿轮制动的方法
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申请号: US14007706申请日: 2012-03-02
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公开(公告)号: US20140019020A1公开(公告)日: 2014-01-16
- 发明人: Mario Steinborn , Jochen Breuer , Christoph Ruechardt , Thomas Jaeger , Roland Mair , Melchor Moro-Oliveros
- 申请人: Mario Steinborn , Jochen Breuer , Christoph Ruechardt , Thomas Jaeger , Roland Mair , Melchor Moro-Oliveros
- 申请人地址: DE Friedrichshafen
- 专利权人: ZF Friedrichshafen AG
- 当前专利权人: ZF Friedrichshafen AG
- 当前专利权人地址: DE Friedrichshafen
- 优先权: DE102011007079.6 20110408
- 国际申请: PCT/EP2012/053593 WO 20120302
- 主分类号: F16H61/68
- IPC分类号: F16H61/68
摘要:
A method of controlling a transmission brake of an automated change-speed transmission having a control cylinder, that is pressurized by inlet and outlet valves, and an upstream main cut-off valve by which a nominal pressure, supplied to the control cylinder, is regulated. Functional deviations of the transmission brake can be considered during a shifting operation, when the transmission is in neutral, the motor coupling clutch is disengaged and the transmission brake is engaged. The rotational speed gradient and the mass of the transmission components to be braked are determined and used to calculate the current braking torque of the transmission brake. The current braking torque relates to the current regulated nominal pressure, and the determined values are stored in a control unit and used during subsequent actuation of the transmission brake.
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