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DRIVE DEVICE FOR VARIABLE VALVE CHARACTERISTIC DEVICE, VALVE CHARACTERISTIC CONTROL SYSTEM, AND VARIABLE VALVE CHARACTERISTIC SYSTEM

机译：可变气门特性装置的驱动装置，气门特性控制系统及可变气门特性系统

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摘要

PPROBLEM TO BE SOLVED: To solve a problem wherein it is difficult to discriminate open circuit or short of signal transmission route and rotation direction signal VTD when the rotation direction signal VTD indicating the rotation direction of a brushless motor 12 is output to ECU 20 in a variable valve characteristic device varying valve characteristics of an engine valve by using the brushless motor 12. PSOLUTION: A rotation speed signal generation part 44 outputs periodic rotation speed signal VTS repeating logical "H" and logical "L" according to rotation speed of the brushless motor 12 to the ECH 20. A rotation direction signal generation part 58 outputs rotation direction signal VTD coincident with or reverse to logical values of the rotation speed signal VTS according to rotation direction of the brushless motor 12. PCOPYRIGHT: (C)2009,JPO&INPIT

机译：

要解决的问题：解决当指示无刷电动机12的旋转方向的旋转方向信号VTD输出到ECU时，难以区分开路或信号传输路径与旋转方向信号VTD短路的问题。在可变气门特性装置中，如图20所示，通过使用无刷电动机12来改变发动机气门的气门特性。

解决方案：转速信号生成部44输出重复逻辑“ H”和逻辑“ L”的周期性转速信号VTS旋转方向信号生成部58根据无刷电动机12的旋转方向输出与旋转速度信号VTS的逻辑值一致或相反的旋转方向信号VTD。 >版权：（C）2009，日本特许厅＆INPIT 展开▼

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公开/公告号JP2009079511A

专利类型
公开/公告日2009-04-16

原文格式PDF
申请/专利权人 DENSO CORP;
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申请/专利号JP20070248361
发明设计人 NAKAHIRA NAOKI;MORINO SEIJI;
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申请日2007-09-26
分类号F02D13/02;F01L1/34;F02D45;
国家 JP
入库时间 2022-08-21 19:43:41

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