Speed Sensor (Transmission)
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| 图 1 | g00461767 |
变速箱转速传感器的位置 | |
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| 图 2 | g00278194 |
变速箱转速传感器 | |
变速箱转速传感器从动力传动系电子控制模块（动力传动系 ECM）获取电源。 变速箱转速传感器利用此电流向动力传动系 ECM 发送信号。 变速箱转速传感器的齿轮有 120 齿， 该齿轮与变速箱输出轴相连。
轮齿的转速将决定变速箱转速传感器向动力传动系 ECM 发送的信号。 该信号可告知动力传动系 ECM 机器的行驶速度。 通过此信息和换档杆开关发送的信息，变速箱可在行驶速度发生变化时自动换档。 除非变速箱档位开关向动力传动系 ECM 发送信息，通知停止自动换档，否则变速箱将保持自动换档。
变速箱切换到的档位通常不会高于变速箱控制装置所选的速度档。 在超速情况下，变速箱将升高一个档位或解除对变矩器的锁止。
当变速箱转速传感器发送的信号指示减档时，动力传动系 ECM 会自动减档。
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