Verbessertes Magnetventil für zum Beispiel eine Bremsschaltbewegungssperre einer Fahrzeuggetriebesteuerung.

摘要

A brake/shift interlock for, e.g., a vehicle having a shift mechanism (10) for an automatic transmission. The shift mechanism includes a shift lever (12) and a detent mechanism (24) having a latch (26) and latch plate (28) with a detent notch at the "Park" position. A Park/Lock member (34) is actuable to lock the latch in the Park position (Figs. 1 & 6). In addition to an ignition lock mechanism (38) for actuating the Park/Lock member based on the status of the ignition switch (36A; Fig. 8), a brake/shift interlock is also provided for actuating the Park/Lock member when the ignition switch is in "Run" position (Fig. 2), except for being released during actuation of a brake switch (82). A solenoid (160; Figs. 4 & 5), when energized, applies a tensioning force to the Park/Lock member via a cable (44) actuating the P/L member. The solenoid includes a plunger (162) having an centrally located, axial opening (171) through it, through which the cable extends. The plunger opening is stepped, providing a seat (170) into which a laterally extended, mushroom-shaped button (173) affixed to the cable is seated, with the cable and plunger thereby being interfaced for movement in unison. The solenoid can be completely assembled in manufacture before being interfaced in engagement with the button staked to the cable. The brake/shift interlock may be mechanically in series (Figs. 1-3) or in parallel (Figs. 6 & 7) with the ignition lock mechanism. In the series arrangement, the cable of the ignition lock mechanism extending axially completely through the solenoid. (Exemplary power circuitry is illustrated in Fig. 8.)