发明名称 |
Method of detecting linear solenoid inter-terminal short of electronic control type automatic transmission |
摘要 |
A short between terminals of a linear solenoid controlled by an electronic control in an automatic transmission is detected by sensing when a PWM duty ratio set by a feedback control operating the linear solenoid is less than a reference duty ratio. The reference duty cycle is calculated to be between a range of expected normal duty ratios in the absence of the short and a range of expected short duty ratios in the presence of the short.
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申请公布号 |
US5773981(A) |
申请公布日期 |
1998.06.30 |
申请号 |
US19960708194 |
申请日期 |
1996.09.06 |
申请人 |
AISIN AW CO., LTD. |
发明人 |
SUGIURA, MASAYUKI;MATSUI, SHINICHI;YONEDA, TATSUYUKI;SUZUKI, KENJI |
分类号 |
G01R31/02;F16H61/00;F16H61/02;F16H61/12;F16K31/06;G01R31/00;(IPC1-7):G01R31/02 |
主分类号 |
G01R31/02 |
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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