Electronically controlled locking differential having...

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 23/04 (2006.01) F16H 48/30 (2006.01)

Patent

CA 2759455

An electronically controlled locking differential (.10) includes an electromagnetic coil (50) and a wire harness adapted to logically control operation of the differential and having a circuit (56). The circuit has a latching switch (62) that is electrically connected to a first source of power and adapted to provide latching power of the differential. A double-pole, double-throw control relay (72) is electrically connected to the latching switch (62) and includes a first switch (74), a second switch (76), and a coil (78). The second switch (76) is adapted to "jump" the latching switch (62). The circuit is disabled when power to the harness is turned off and in "standby" mode when power to the harness is turned on. Upon the latching switch (62) being activated, current flows from a starting point of the circuit through the circuit to activate the relay (72), the first switch (74) closes to energize the differential, the second switch (76) closes such that the current "jumps" the latching switch (62), and the differential is actuated.

L'invention concerne un différentiel (10) à blocage à commande électronique, lequel comprend une bobine électromagnétique (50) et un faisceau de câbles conçu pour exécuter la commande logique du fonctionnement du différentiel et présentant un circuit (56). Le circuit est pourvu d'un commutateur de verrouillage (62) qui est électriquement connecté à une première source de puissance et conçu pour fournir la puissance de verrouillage du différentiel. Un relais de commande bipolaire bidirectionnel (72) est électriquement connecté au commutateur de verrouillage (62) et il comprend un premier commutateur (74), un second commutateur (76) et une bobine (78). Le second commutateur (76) est conçu pour "sauter" le commutateur de verrouillage (62). Le circuit est désactivé lorsque la puissance destinée au faisceau est coupée et en mode "veille" lorsque la puissance destinée au faisceau est activée. A l'activation du commutateur de verrouillage (62), le courant circule depuis un point de départ du circuit à travers le circuit afin d'activer le relais (72), le premier commutateur (74) se ferme afin d'exciter le différentiel, le second commutateur (76) se ferme de telle sorte que le courant "saute" le commutateur de verrouillage (62) et le différentiel est actionné.

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