Back-up apparatus for gear stroke sensor of automatic transmission for car
专利汇可以提供Back-up apparatus for gear stroke sensor of automatic transmission for car专利检索，专利查询，专利分析的服务。并且PURPOSE:To back up a trouble by calculating the gear ratio from the ratio between the ON/OFF states of a neutral switch, or the car speed and the revolution speed of an input shaft, and comparing said gear ratio with the gear ratio after shift, when a gear stroke sensor is broken. CONSTITUTION:The oil chambers 1g and 1f of a shift actuator 1 communicate to a hydraulic source 4 and a tank 5 through magnetic valves V1 and V2. Further, a stroke sensor 6 for detecting the stroke position of a piston rod 1d consists of a potentiometer. The voltage values at the both edges of the potentiometer are 5.5V and 0V, and the output voltage at the normal neutral position is about 2.50V, and the output voltage values at shift-in positions are about 4.5V and 0.5V. An electronic controller 7 selectively operates magnetic valves V1 and V2 for shift on the basis of the output of the stroke sensor 6, a various sorts of signals of the engine revolution speed, car speed, selecting lever, etc., and shifts the shift actuator 1.，下面是Back-up apparatus for gear stroke sensor of automatic transmission for car专利的具体信息内容。
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