发明名称 |
POSITION SENSING DEVICE AND METHOD FOR IMPLEMENTING FAILSAFE CONTROL ON POSITION SENSING SYSTEM INCLUDING THE SAME |
摘要 |
A movement detection unit detects a movement of a detected object and outputs a voltage signal to an electronic control unit. A buffer unit implements buffer amplification on the outputted voltage signal. A pull-up resistor element or a pull-down resistor element is connected with the buffer unit via a wiring portion. A current detection unit detects a direction of an electric current flowing through the wiring portion to output a safe specific voltage signal to the electronic control unit on disconnection of the wiring portion. A power-supply-voltage detection unit detects decrease in a power supply voltage applied to the movement detection unit. A voltage switching unit sets the voltage signal, which is outputted to the electronic control unit through the wiring portion, on a high-voltage side or a low-voltage side according to the detected direction of the electric current, on detection of decrease in the power supply voltage.
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申请公布号 |
US2012146568(A1) |
申请公布日期 |
2012.06.14 |
申请号 |
US201113299595 |
申请日期 |
2011.11.18 |
申请人 |
KUBOTA TAKAMITSU;MIZUTANI AKITOSHI;KONO YOSHIYUKI;DENSO CORPORATION |
发明人 |
KUBOTA TAKAMITSU;MIZUTANI AKITOSHI;KONO YOSHIYUKI |
分类号 |
G05B19/406;G01B7/00 |
主分类号 |
G05B19/406 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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