发明授权
- 专利标题: Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle
- 专利标题(中): 用于控制电磁阀的方法,特别是用于机动车辆的自动变速器
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申请号: US10773668申请日: 2004-02-06
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公开(公告)号: US07260462B2公开(公告)日: 2007-08-21
- 发明人: Norbert Keim , Christof Ott , Wulf-Siegfried Bayha , Martin Krohn , Bernd Huber , Jens Dorfschmid , Juergen Semler
- 申请人: Norbert Keim , Christof Ott , Wulf-Siegfried Bayha , Martin Krohn , Bernd Huber , Jens Dorfschmid , Juergen Semler
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 代理机构: Kenyon & Kenyon LLP
- 优先权: DE10304711 20030206
- 主分类号: B05B1/30
- IPC分类号: B05B1/30 ; F02M51/00 ; F15B13/04 ; G05D16/20 ; F16D48/06
摘要:
A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provide a method by which a rapid response characteristic and a high adjustment precision of the electromagnetic valve are made possible. The specific properties of a hydraulic system in which electromagnetic valves are used, in particular the rigidity and damping, are not constant but instead change considerably under different operating states of the hydraulic system and/or with different performance quantities of the electromagnetic valve. These different properties are taken into account through the change in the clock frequency as a function of performance quantities of the electromagnetic valve. The clock frequency may thus be optimally adapted to the properties of the hydraulic system, and a rapid response characteristic and a high adjustment precision are achieved.
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