[미국특허]
Solenoid system for, for example, a brake/shift interlock for vehicular transmission control
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60K-041/26
B60K-041/04
H01F-007/08
출원번호
US-0440554
(1989-11-20)
발명자
/ 주소
Ratke Richard (Dearborn MI) Ellison Donald E. (Mount Clemens MI)
출원인 / 주소
United Technologies Automotive, Inc. (Dearborn MI 02)
인용정보
피인용 횟수 :
16인용 특허 :
9
초록▼
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 actuabl
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 and 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 and 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 and 7) with the ignition lock mechanism. In the series arrangement, the cable of the ignition lock mechanism extends axially completely through the solenoid. (Exemplary power circuitry is illustrated in FIG. 8.
대표청구항▼
In a brake/shift interlock for use in a vehicle having a shift control mechanism for an automatic transmission, the transmission having a “Park”mode and modes other than Park, the shift control mechanism having a shift lever for controlling selection of the transmission modes, a detent mechanism hav
In a brake/shift interlock for use in a vehicle having a shift control mechanism for an automatic transmission, the transmission having a “Park”mode and modes other than Park, the shift control mechanism having a shift lever for controlling selection of the transmission modes, a detent mechanism having a latch and latch plate, the latch being adapted to be in detented engagement with respective detent notches in the latch plate, one of said detent notch coinciding with a Park position of the shift lever, and the latch being selectively, manually actuable out of said detented engagement with a respective detent notch, and a Park/Lock member actuable to lock the latch in the Park position detent notch, the vehicle having an ignition switch having “Off”and “Run”positions, an ignition lock mechanism associated with the ignition switch and connected with the Park/Lock member for actuating the Park/Lock member to a “Lock”position to maintain the latch locked in the Park position detent notch when the ignition switch is in its Off position, and a brake switch connected in an electrical power circuit, and adapted to be actuated in conjunction with the actuation of the vehicle brakes, an improvement in the brake/shift interlock, comprising: an electromagnetic actuator including a solenoid having a plunger, said solenoid plunger having a stepped, axial opening through it; electrical means for connecting said electro-magnetic actuator electrically into the power circuit including the brake switch to control operation of said actuator as a function of the actuation of the brake switch; the ignition lock mechanism including a substantially inelastic line connected to the Park/Lock member; a substantially inelastic, mechanical connecting line mechanically connecting said plunger of said electromagnetic actuator in line with the movement of the Park/Lock member, said electromagnetic actuator being energizable for placing said connecting line in tension and urging the Park/Lock member toward the Lock position, said connecting line extending through said axial opening in said plunger and having a laterally extended element engaging the stepped portion of said axial opening, causing said line and said plunger to move in unison due to the stepped engagement between said laterally extended element and said plunger.
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