公开(公告)号：US5687687A

公开(公告)日：1997-11-18

申请号：US477294

申请日：1995-06-07

申请人： Jimmie J. Trueblood ,  Mary L. Till ,  Lynn S. Zopff ,  Bradly G. Duffer

发明人： Jimmie J. Trueblood ,  Mary L. Till ,  Lynn S. Zopff ,  Bradly G. Duffer

IPC分类号： F01M11/00 ,  F01M11/12 ,  G01F23/292 ,  F01M11/10

CPC分类号： F01M11/12 ,  G01F23/2921 ,  F01M11/0004

摘要： A fluid level sensor system for a vehicle oil pan includes a fluid level sensor assembled to the oil pan which has a first LED/phototransistor sensor electrically arranged and responsive to a low oil level in the oil pan for generating a low level voltage signal. The fluid level sensor also includes a second LED/phototransistor sensor which is electrically arranged and responsive to a high oil level in the oil pan for generating a high level voltage signal. The low level voltage signal and the high level voltage signal from the fluid level sensor are electrically connected to an electronic control module (ECM) which receives and processes the two signals and activates a warning lamp with a flashing illumination to identify a low oil level condition and a constantly on illumination to identify a high oil level condition. The operation of the ECM is controlled by a flow logic algorithm.

摘要翻译： 用于车辆油底壳的液位传感器系统包括组装到油底壳上的液位传感器，其具有电气布置的第一LED /光电晶体管传感器，并且响应油盘中的低油位产生低电平电压信号。 液位传感器还包括第二LED /光电晶体管传感器，其被电气布置并且响应于油盘中的高油位以产生高电平电压信号。 来自液位传感器的低电平电压信号和高电平电压信号电连接到电子控制模块（ECM），电子控制模块（ECM）接收和处理两个信号，并激活具有闪烁照明的警告灯，以识别低油位状态 并持续照明以识别高油位状况。 ECM的操作由流逻辑算法控制。