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公开(公告)号：US20190136952A1
公开(公告)日：2019-05-09
申请号：US15804173
申请日：2017-11-06
CPC分类号： F16H48/34 , B62D15/029 , F16H48/24 , F16H2048/205
摘要： A vehicle includes a differential having an electronic locker and a controller. The controller is programmed to, when in differential-lock mode, engage the locker responsive to vehicle speed being less than a speed threshold and a steering angle being less than a threshold, disengage the locker responsive to vehicle speed exceeding the speed threshold, and prevent automatic re-engagement of the locker responsive to the steering angle exceeding the threshold.
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公开(公告)号：US20180066742A1
公开(公告)日：2018-03-08
申请号：US15560384
申请日：2015-09-29
发明人： Takuya FURUKAWA , Michihiro KAMEDA
CPC分类号： F16H48/36 , F16H48/24 , F16H48/34 , F16H59/38 , F16H59/58 , F16H2048/205 , F16H2048/364 , F16H2059/405
摘要： A torque transmission device is provided that is capable of being compactified as much as possible in a direction of parallel arrangement of a pair of side gears while ensuring a differential function and a differential limiting function. The torque transmission device comprises side gears (5L, 5R) coupled to rear wheels (3L, 3R), a case (6) disposed on the outer circumferential side of the side gears (5L, 5R) and rotating around the axis of the side gears (5L, 5R), and a pinion gear (12) rotatably supported by the case (6) and engaged with the side gears (5L, 5R) in a straddling manner. Additionally, the side gears (5L, 5R) are made up of spur gears different in the number of teeth, the pinion gear (12) is a spur gear and is disposed with an axial direction thereof directed in the same direction as the axial direction of the side gears (5L, 5R), and the pinion gear (12) is associated with a motor (15).
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公开(公告)号：US09046160B2
公开(公告)日：2015-06-02
申请号：US13855842
申请日：2013-04-03
申请人： Caterpillar Inc.
发明人： Brian D. Hoff , Mark E. Rettig
CPC分类号： F16H48/00 , B60K2023/046 , B60W10/12 , B60Y2200/41 , B60Y2200/412 , F16D25/12 , F16H48/22 , F16H48/32 , F16H2048/205
摘要： A method for controlling an operational state of a differential of a machine is disclosed. The method includes determining a transmission output speed, a transmission output torque and a degree of steering of the machine. The method further includes actuating a locking mechanism associated with the differential based on the transmission output speed, the transmission output torque, and the degree of steering.
摘要翻译： 公开了一种用于控制机器的差速器的操作状态的方法。 该方法包括确定变速器输出速度，变速器输出扭矩和机器的转向程度。 该方法还包括基于变速器输出速度，变速器输出扭矩和转向程度来致动与差速器相关联的锁定机构。
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公开(公告)号：US20130110366A1
公开(公告)日：2013-05-02
申请号：US13806614
申请日：2011-07-05
申请人： Shinichi Suzuki
发明人： Shinichi Suzuki
IPC分类号： F16H48/30 , B60K17/344
CPC分类号： F16H48/30 , B60K17/344 , B60K23/04 , B60K2023/043 , B60W10/16 , B60W30/045 , B60W2720/28 , B60W2720/403 , B60W2720/406 , F16H48/19 , F16H2048/205
摘要： A left-right drive force difference transient control computation value calculating section uses a map search, based on a change rate of a target yaw rate, to find a left-right rear wheel drive force difference transient control computation value, which is a basic target value for a turning response transiently requested by a driver. A left-right drive force difference transient control gain computing section sets a left-right drive force difference transient control gain to be smaller than 1 in a low vehicle speed region. A transient control computing section multiplies the left-right rear wheel drive force difference transient control computing value by the left-right drive force difference transient control gain to calculate a left-right rear wheel drive force difference transient control amount and contributes the same to a left-right wheel drive force distribution control.
摘要翻译： 左右驱动力差瞬变控制计算值计算部使用基于目标横摆率的变化率的地图搜索，求出作为基本目标的左右后轮驱动力差瞬变控制计算值 驾驶员瞬时要求的转向响应的值。 左右驱动力差瞬变控制增益计算部在低车速区域中将左右驱动力差瞬变控制增益设定为小于1。 瞬时控制运算部将左右后轮驱动力差瞬变控制运算值乘以左右驱动力差瞬变控制增益，计算左右后轮驱动力差暂变控制量，并将其作用于 左右轮驱动力分配控制。
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公开(公告)号：US20130073161A1
公开(公告)日：2013-03-21
申请号：US13700359
申请日：2011-07-05
申请人： Yohei Tsushima
发明人： Yohei Tsushima
IPC分类号： B60W10/119
CPC分类号： B60W10/119 , B60K17/344 , B60K23/0808 , B60K2023/043 , B60W10/16 , B60W30/045 , B60W2720/28 , B60W2720/403 , B60W2720/406 , F16H48/19 , F16H2048/205
摘要： A rear wheel drive force difference setting gain is multiplied by a basic left-right rear wheel drive force difference steady-state control computation value for achieving a vehicle turning behavior steadily requested by a driver in order to calculate a final left-right rear wheel drive force difference steady-state control amount. The final left-right rear wheel drive force difference steady-state control amount is added to a left-right rear wheel drive force difference transient control amount to obtain left-right rear wheel rear wheel drive force difference. This difference is multiplied by feedback control coefficient to obtain a final rear wheel drive force difference. During an initial stage of turning in which a lateral acceleration is smaller than a turn initial stage determining value, the rear wheel drive force difference setting gain is set to A, which is larger than 1 and increases as the lateral acceleration decreases. As a result, the final rear wheel drive force difference is increased during the initial stage of turning and an initial turning response can be improved.
摘要翻译： 后轮驱动力差设定增益乘以用于实现驾驶员稳定要求的车辆转向行为的基本左后轮驱动力差异稳态控制计算值，以便计算最后的左后轮驱动 力差稳态控制量。 最终的左后轮驱动力差异稳态控制量被添加到左右后轮驱动力差瞬变控制量，以获得左右后轮后轮驱动力差。 该差乘以反馈控制系数，以获得最终的后轮驱动力差。 在横向加速度小于转弯初始阶段确定值的初始转弯阶段中，后轮驱动力差设定增益设定为大于1的A，并且随着横向加速度的减小而增加。 结果，最终的后轮驱动力差在转弯的初始阶段增加，并且可以提高初始的转动响应。
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公开(公告)号：US20130073160A1
公开(公告)日：2013-03-21
申请号：US13700345
申请日：2011-07-05
申请人： Yohei Tsushima
发明人： Yohei Tsushima
IPC分类号： G05D17/00
CPC分类号： G05D17/00 , B60K17/344 , B60K23/04 , B60K2023/043 , B60W2720/30 , F16H48/19 , F16H2048/205
摘要： When a rear wheel total drive force is smaller than a rear wheel drive force difference and the rear wheel drive force difference cannot be accomplished by dividing the rear wheel total drive force between the left and right rear wheels, an inside wheel target drive force is not set to 0 and an outside wheel target drive force is not set to. Instead, the inside wheel target drive force is set to a default drive force that is a minimum value required to prevent a three-wheel drive state from occurring, and the outside wheel target drive force is set a value equal to the sum of the default drive force and the rear wheel drive force difference, which is a value with which the rear wheel drive force difference can be achieved under the condition of the inside wheel target drive force being equal to the default drive force.
摘要翻译： 当后轮总驱动力小于后轮驱动力差，并且后轮驱动力差不能通过在左右后轮之间分配后轮总驱动力而实现时，内轮目标驱动力不是 设定为0，外轮目标驱动力未设定。 而是将内轮目标驱动力设定为作为防止三轮驱动状态发生所需的最小值的默认驱动力，将外侧车轮目标驱动力设定为与默认值相等的值 驱动力和后轮驱动力差，这是在内轮目标驱动力等于默认驱动力的条件下可以实现后轮驱动力差的值。
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公开(公告)号：US6095276A
公开(公告)日：2000-08-01
申请号：US5690
申请日：1998-01-13
IPC分类号： B60K23/04 , B60K17/34 , B60K17/35 , B60K23/08 , B60K17/354
CPC分类号： F16H48/30 , B60K17/35 , B60K23/0808 , F16H48/295 , B60K17/3505 , F16H2048/205 , F16H2048/346 , F16H48/22
摘要： A rear differential in a four-wheel drive vehicle includes a left and right clutches adapted to distribute a driving force transmitted from front wheels through a propeller shaft to left and right rear wheels. If the engagement of the left and right clutches is released, only the front wheels are driven and in this manner, the vehicle is brought into a front wheel-drive state. If the left and right clutches are brought into their engaged states, both of the front wheels and the rear wheels are driven and in this manner, the vehicle is brought into a four-wheel drive state. By changing the engagement forces of the left and right clutches, different driving forces can be distributed to the left and right rear wheels. In addition, when a driver operates a differential lock switch, the left and right clutches, are brought into their engaged states with the maximum engagement force, thereby integrally coupling the propeller shaft to the left and right rear wheels to provide a differential-locked state. Thus, a differential lock mechanism can be provided to the differential in a simple structure.
摘要翻译： 四轮驱动车辆的后差速器包括左右离合器，其适于将从前轮传递的驱动力通过传动轴分配到左后轮和右后轮。 如果释放左右离合器的接合，则仅驱动前轮，并且以这种方式使车辆进入前轮驱动状态。 如果左右离合器进入其接合状态，则前轮和后轮都被驱动，以这种方式使车辆进入四轮驱动状态。 通过改变左右离合器的啮合力，可以将不同的驱动力分配给左右后轮。 此外，当驾驶员操作差速锁定开关时，左右离合器以最大的接合力进入其接合状态，从而将传动轴整体地联接到左右后轮以提供差速锁定状态 。 因此，可以以简单的结构向差速器提供差速锁定机构。
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公开(公告)号：US6070495A
公开(公告)日：2000-06-06
申请号：US6195
申请日：1998-01-13
IPC分类号： B60K23/04 , B60K17/16 , B60K17/35 , B60K23/08 , F16H48/08 , F16H48/22 , F16H48/34 , F16H48/38 , F16H48/40 , F16H48/12 , F16D21/08 , B60K29/00
CPC分类号： F16H48/30 , B60K17/35 , B60K23/0808 , F16H48/295 , B60K17/3505 , F16H2048/205 , F16H2048/346 , F16H48/22 , Y10T74/19005
摘要： A power transmitting system having an input shaft, a driven bevel gear, a follower bevel gear and a clutch drive shaft accommodated in longitudinally bisected center casings. Left and right electromagnetic clutches connected to the clutch drive shaft are accommodated in left and right side casings which are connected to the center casings and, such that a driving force from the input shaft is transmitted to left and right wheels through the pair of bevel gears and the left and right clutches. Thus, maintenance of the clutches can be easily performed, and the check and regulation of the meshed states of the bevel gears can be easily performed.
摘要翻译： 一种动力传递系统，其具有输入轴，从动锥齿轮，从动锥齿轮和离合器驱动轴，其容纳在纵向平分的中心壳体中。 连接到离合器驱动轴的左右电磁离合器容纳在与中心壳体连接的左右侧壳体中，并且使得来自输入轴的驱动力通过一对锥齿轮传递到左右车轮 和左右离合器。 因此，能够容易地进行离合器的维护，能够容易地进行锥齿轮的啮合状态的检查和调整。
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公开(公告)号：US6012560A
公开(公告)日：2000-01-11
申请号：US6218
申请日：1998-01-13
CPC分类号： F16H48/30 , B60K17/35 , B60K23/0808 , F16H48/295 , B60K17/3505 , B60K2023/043 , F16H2048/205 , F16H2048/346 , F16H48/22 , Y10T74/19005
摘要： In a power transmitting system, a clutch drive shaft driven through bevel gears and by an input shaft is laterally extensive and left and right electromagnetic clutches are disposed between opposite ends of the clutch drive shaft and left and right output shafts, respectively. A clutch body heated during the transmission of a power is disposed at a laterally outer location of the system to provide enhanced heat-radiatability, and an annular solenoid is disposed inside the clutch body. A bearing for supporting each of the opposite ends of the clutch drive shaft is disposed radially inside the solenoid. Thus, the lateral dimension of the power transmitting system is reduced.
摘要翻译： 在动力传递系统中，通过锥齿轮和输入轴驱动的离合器驱动轴是横向广泛的，左右电磁离合器分别设置在离合器驱动轴和左右输出轴的相对端之间。 在传动动力期间加热的离合器主体设置在系统的横向外部位置以提供增强的热辐射性，并且环形螺线管设置在离合器主体的内部。 用于支撑离合器驱动轴的每个相对端的轴承设置在螺线管的径向内侧。 因此，动力传递系统的横向尺寸减小。
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公开(公告)号：US5910064A
公开(公告)日：1999-06-08
申请号：US7353
申请日：1998-01-15
申请人： Tadashi Kuroki
发明人： Tadashi Kuroki
IPC分类号： B60K23/04 , F16D48/12 , F16H48/22 , F16H48/30 , F16H48/32 , F16H48/36 , F16H48/38 , F16H61/02
CPC分类号： F16H48/22 , B60K23/04 , F16H48/08 , F16H48/10 , F16H48/11 , F16H48/30 , F16H48/34 , F16H48/36 , B60K17/20 , B60W2520/14 , F16H2048/204 , F16H2048/205 , F16H2048/366 , F16H2061/026 , F16H2200/2071 , F16H48/32
摘要： A differential mechanism has a differential casing for receiving drive power from an engine and a pair of output members for distributing the received drive power to road wheel ends. A pair of drive power control mechanisms each respectively comprise a combination of a speed change mechanism and a friction clutch for a serial connection between the differential casing and either output member or between the output members and an actuator for actuating the friction clutch to be let in. A controller controls a pair of the actuators to have a pair of the friction clutches periodically let in and let out in an alternating manner with a relatively short period.
摘要翻译： 差速机构具有用于从发动机接收驱动力的差速器壳体和用于将接收到的驱动力分配给公路车轮端的一对输出构件。 一对驱动力控制机构各自分别包括变速机构和摩擦离合器的组合，用于差动壳体和输出构件之间或输出构件之间的串联连接和用于致动摩擦离合器的致动器 控制器控制一对致动器以使一对摩擦离合器以相当短的周期周期性地以交替的方式进入和放出。
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