Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1983-06-13
1985-10-29
Bonck, Rodney H.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74710, 74713, F16H 144.5
Patent
active
045494487
ABSTRACT:
A differential lock control system includes an hydraulically-operated differential lock operated by a solenoid valve. Energization of the solenoid valve is controlled by a circuit which includes a normally open latching relay and series-connected switches which open and unlock the differential in response to sensed vehicle speed and brake application. The differential may be locked by closing a normally open momentary contact switch. A multiple relay circuit is coupled to the latching relay and is operable to automatically re-lock the differential when certain conditions relating to vehicle functions, such as steering pressure, wheel slip and draft force, are met.
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Bonck Rodney H.
Deere & Company
Diehl Dwight G.
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