发明名称 Electronic switching control for rear transmission
摘要 In a vehicle having separate front and rear transmissions, a system for slaving one of the transmissions to the other so that the slave transmission will operate in the same drive range as that existing in the master transmission. Low-level binary coded signals are separately generated by each transmission to indicate the existing drive ranges of the two transmissions. The signals are sent to a control unit where they are examined and used to shift the slave transmission up or down as necessary, so that it keeps in step with the drive range in which the master transmission is operating. A unique binary code is used in the sending of drive-range signals to the control unit to prevent the control unit from shifting the slave transmission in response to errors in the signals which may occur in the event of faults in the cables through which the signals are sent.
申请公布号 US4203375(A) 申请公布日期 1980.05.20
申请号 US19770823768 申请日期 1977.08.11
申请人 CATERPILLAR TRACTOR 发明人 MILLER, ROBERT G
分类号 B60W10/04;B60K5/08;B60K17/354;B60W10/00;B60W10/02;B60W10/10;F16H61/02;(IPC1-7):B60K20/16;F16H37/06 主分类号 B60W10/04
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