| 摘要 |
FIELD: electricity.SUBSTANCE: invention is related to electronically-controllable locking differentials. Differential comprises magnetic coil (50) and control system based on wire harness for logic control of the differential operation; the system comprises a circuit (56). The circuit contains a locking switch (62), which is coupled electrically to the first power supply source and designed to lock power supply of the differential. Double-pole double-throw control relay (72) coupled electrically to the locking switch (62) comprises the first switch (74), the second switch (76) and a coil (78). The second switch (76) is designed to "overjump" the locking switch (62). The circuit is deenergised when power is not supplied to the wire harness and is in standby mode when power is supplied to the wire harness. When the locking switch (62) is activated current passes from the initial point through the circuit in order to activate the relay (72), at that the first switch (74) is closed to excite the differential and the second switch (76) is closed so that current "overjumps" the locking switch (62) and the differential becomes activated.EFFECT: higher reliability of a device is reached.20 cl, 3 dwg |
