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    • 7. 发明授权
    • Vehicle with lockable differential
    • 具有可锁定差速器的车辆
    • US4671373A
    • 1987-06-09
    • US674736
    • 1984-11-26
    • Alfred Sigl
    • Alfred Sigl
    • B60K28/16B60K23/04B60T8/175B60W10/00B60W10/12B60W10/18F02D29/02F16D48/12B60T8/32
    • B60T8/4809B60K23/04Y10T477/606
    • A locking-type differential (5; I, II) is automatically engaged to locked position upon sensing of certain vehicle operating conditions, and unlocked upon sensing other vehicle operating conditions. If the steering wheel is deflected, or transverse acceleration is sensed, the differential is inhibited from locking; likewise, if the brakes are applied, or the engine is operating under idle condition, the locking-type differential is either unlocked or prevented from locking. On the other hand, if a kick-down signal from the accelerator is sensed, or if the difference in speed of driven and rolling wheels exceeds a predetermined amount, thus indicating slippage of the driven wheel, or if a brake applied to the driven wheel is then engaged, and the speed between the wheels coupled to the differential has become essentially uniform (FIG. 2, terminal 17), the differential is controlled to lock. Two axles may have differentials applied thereto, for example in four-wheel drive vehicles, and the criteria for the locking of the second differential may be similar or, for example, include reduction of drive torque being applied by the engine. Suitable time delays can be provided in the circuitry to prevent spurious response under transient conditions.
    • 锁定型差速器(5; I,II)在感测到某些车辆操作条件时自动接合到锁定位置,并且在感测到其他车辆操作条件时被解锁。 如果方向盘偏转,或者感测到横向加速度,则阻止差速器锁定; 同样地,如果制动器被施加,或者发动机在怠速条件下操作,则锁定型差速器被解锁或防止锁定。 另一方面,如果感测到来自加速器的减速信号,或者如果驱动和滚动车轮的速度差超过预定量,从而指示从动轮的滑动,或者如果施加到从动轮的制动器 然后接合到联接到差速器的轮子之间的速度变得基本上均匀(图2,端子17),差速器被控制锁定。 两个轴可能具有应用于其上的差速器,例如在四轮驱动车辆中,并且用于锁定第二差速器的标准可以是相似的,或者例如包括由发动机施加的驱动转矩的降低。 可以在电路中提供合适的时间延迟,以防止在瞬态条件下的杂散响应。