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公开(公告)号：US5363938A
公开(公告)日：1994-11-15
申请号：US28299
申请日：1993-03-09
CPC分类号： B60K23/08
摘要： The present invention provides a power transfer system for a four-wheel drive vehicle which permits the vehicle operator to choose between operation in two-wheel drive and part-time four-wheel drive modes or an "on-demand" four-wheel drive mode. The power transfer system is operable for disabling the on-demand four-wheel drive feature upon the vehicle operator subsequently shifting into any of the two-wheel drive and part-time four-wheel drive modes.
摘要翻译： 本发明提供了一种用于四轮驱动车辆的动力传递系统，其允许车辆操作者在两轮驱动和兼职四轮驱动模式的操作或“按需”四轮驱动模式 。 电力传输系统可操作用于在车辆操作员随后转换成任何两轮驱动和兼职四轮驱动模式时禁用按需四轮驱动特征。
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公开(公告)号：US5323871A
公开(公告)日：1994-06-28
申请号：US28952
申请日：1993-03-10
IPC分类号： B60K17/344 , B60K23/08 , B60K17/34
CPC分类号： B60K23/08 , B60K17/344 , B60K23/0808
摘要： The present invention is directed to an improved "on-demand" power transfer system of the type having a transfer mechanism incorporated into the driveline of a four-wheel drive vehicle. The transfer mechanism is arranged to deliver drive torque to the driven wheels so as to establish a two-wheel drive mode of operation. In addition, the transfer mechanism is equipped with a clutch assembly for selectively delivering drive torque to the non-driven wheels for establishing a four-wheel drive mode of operation. The transfer mechanism is further equipped with a rotary actuator mechanism for actuating the clutch assembly. The rotary actuator mechanism is preferably mounted directly to the transfer mechanism to substantially minimize the packaging requirements associated with the on-demand power transfer system while concomitantly enhancing in-service reliability and allowing pre-assembly of the transfer mechanism prior to final installation into the vehicle driveline. The power transfer system further includes sensors for detecting various dynamic and operational characteristics of the vehicle and generating sensor input signals indicative thereof, and a controller for controlling actuation of the rotary actuator means in response to the sensor input signals.
摘要翻译： 本发明涉及一种改进的“按需”动力传递系统，其具有结合到四轮驱动车辆的传动系中的传送机构。 传动机构被布置成将驱动扭矩传递到从动轮，以便建立两轮驱动操作模式。 此外，传送机构配备有离合器组件，用于选择性地将驱动扭矩输送到非从动轮以建立四轮驱动操作模式。 传送机构还配备有用于致动离合器组件的旋转致动器机构。 旋转致动器机构优选地直接安装在传送机构上，从而基本上最小化与按需电力传送系统相关联的包装要求，同时增强了在役可靠性并允许在最终安装到车辆之前预先组装传送机构 传动系。 电力传输系统还包括用于检测车辆的各种动态和操作特性并产生指示其的传感器输入信号的传感器，以及用于响应于传感器输入信号控制旋转致动器装置的致动的控制器。
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公开(公告)号：US5330030A
公开(公告)日：1994-07-19
申请号：US28363
申请日：1993-03-09
IPC分类号： B60K17/344 , B60K17/35 , B60K23/08 , F16H59/40 , F16H59/44 , F16H59/46 , F16H59/54 , F16H59/58 , F16H63/18 , F16H63/30 , B60K17/34
CPC分类号： B60K23/08 , B60K17/344 , B60K17/35 , B60W2540/12 , B60W2710/022 , F16H2063/3056 , F16H59/40 , F16H59/44 , F16H59/46 , F16H59/54 , F16H59/58 , F16H63/304
摘要： The present invention provides a power transfer system for a four-wheel drive vehicle which permits the vehicle operator to choose between operation in conventional two-wheel drive and four-wheel drive modes or an "on-demand" four-wheel drive mode. The power transfer system is operable for disabling the on-demand four-wheel drive feature upon the vehicle operator subsequently shifting into either of the two-wheel drive and the four-wheel drive modes. The system includes a transfer mechanism having a first and second output members coupled to first and second sets of wheels, respectively. The transfer mechanism has a transfer clutch that is operable for transferring drive torque from the first output member to the second output member to establish the part-time four-wheel drive and on-demand modes. A coupling mechanism is provided for mechanically coupling the first and second output members under certain conditions.
摘要翻译： 本发明提供一种用于四轮驱动车辆的动力传递系统，其允许车辆操作者在常规的两轮驱动和四轮驱动模式或“按需”四轮驱动模式之间的操作之间进行选择。 动力传递系统可操作用于在车辆驾驶员随后转换到两轮驱动和四轮驱动模式之一时禁用按需四轮驱动特征。 该系统包括转移机构，其具有分别联接到第一组和第二组轮的第一和第二输出构件。 传送机构具有传递离合器，其可操作以将驱动扭矩从第一输出构件传递到第二输出构件，以建立兼职四轮驱动和按需模式。 提供耦合机构用于在某些条件下机械耦合第一和第二输出部件。
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4.发明授权Linear actuation mechanism for electronically-controlled torque modulated transfer case 失效用于电控转矩调制传动箱的直线致动机构
公开(公告)号：US5332060A
公开(公告)日：1994-07-26
申请号：US28956
申请日：1993-03-10
CPC分类号： B60K23/0808 , B60K17/344 , B60K17/35 , B60W2520/263 , B60W2540/12 , B60W2710/022 , F16H59/44 , F16H59/46
摘要： The present invention is directed to an improved "on-demand" power transfer system of the type having a transfer mechanism incorporated into the driveline of a four-wheel drive vehicle. The transfer mechanism is arranged to deliver drive torque to the driven wheels so as to establish a two-wheel drive mode of operation. In addition, the transfer mechanism is equipped with a clutch assembly for selectively delivering drive torque to the non-driven wheels for establishing a four-wheel drive mode of operation. The transfer mechanism is further equipped with a linear actuator mechanism for actuating the clutch assembly. The linear actuator mechanism is preferably mounted directly to the transfer mechanism to substantially minimize the packaging requirements associated with the on-demand power transfer system while concomitantly enhancing in-service reliability and allowing pre-assembly of the transfer mechanism prior to final installation into the vehicle driveline. The power transfer system further includes sensors for detecting various dynamic and operational characteristics of the vehicle and generating sensor input signals indicative thereof, and a controller for controlling actuation of the linear actuator means in response to the sensor input signals.
摘要翻译： 本发明涉及一种改进的“按需”动力传递系统，其具有结合到四轮驱动车辆的传动系中的传送机构。 传动机构被布置成将驱动扭矩传递到从动轮，以便建立两轮驱动操作模式。 此外，传送机构配备有离合器组件，用于选择性地将驱动扭矩输送到非从动轮以建立四轮驱动操作模式。 传送机构还配备有用于致动离合器组件的线性致动器机构。 线性致动器机构优选地直接安装到传送机构上，以大大减少与按需电力传送系统相关联的包装要求，同时增强了在役可靠性，并允许在最终安装到车辆之前预先组装传送机构 传动系。 电力传输系统还包括用于检测车辆的各种动态和操作特性并产生指示其的传感器输入信号的传感器，以及用于响应于传感器输入信号控制线性致动器装置的致动的控制器。
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公开(公告)号：US5106351A
公开(公告)日：1992-04-21
申请号：US730213
申请日：1991-07-15
IPC分类号： B60K17/346
CPC分类号： B60K17/3465 , B60K17/3467
摘要： A transfer case for a four wheel drive vehicle providing a central shaft defining a first output concentrically surrounded by a forward high/low drive range gear set and an aft dual planetary inter-axle differential gear set. A range clutch collar is disposed between the gear sets for selectively providing four wheel drive low range, neutral, and full-time four wheel drive high range. Likewise, a mode sleeve is disposed between the gear sets for selectively locking the differential gear set when the vehicle is shifted into its four wheel low range. Inner and outer relatively rotational drum housings surround the aft dual planetary differntial gear set for defining an annular viscous fluid coupling chamber therebetween. The inner drum is formed with internal annulus gear teeth meshed with a portion of the dual planetary gear set for rotation with the first output shaft while the outer drum is interconnected to a second output for providing full-time four wheel drive differentiation with limited slip between the first and second outputs.
摘要翻译： 用于四轮驱动车辆的传送箱，其提供中心轴，其限定同心地被前进高/低驱动范围齿轮组和后双行星齿轮间差速齿轮组包围的第一输出。 齿轮组之间设置了一个范围离合器套环，用于选择性地提供四轮驱动低范围，中性和全时四轮驱动高范围。 类似地，模式套筒设置在齿轮组之间，用于当车辆移动到其四轮低范围内时选择性地锁定差速齿轮组。 内部和外部相对旋转的鼓壳体围绕后部双行星差速齿轮组，用于在其间限定环形粘性流体联接室。 内滚筒形成有与双行星齿轮组的一部分啮合的内环形齿轮齿，用于与第一输出轴一起旋转，而外鼓与第二输出相互连接，以提供全时四轮驱动差速， 第一和第二输出。
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公开(公告)号：US4836053A
公开(公告)日：1989-06-06
申请号：US197497
申请日：1988-05-23
IPC分类号： B60K17/344 , F16H1/22
CPC分类号： B60K17/344 , F16H1/227 , Y10T74/19223 , Y10T74/19451
摘要： A dual planetary gear reduction assembly for a two-wheel/four drive vehicle transfer case mechanism providing an exact two-to-one gear reduction ratio during full-time four wheel drive operation. The dual planetary is uniquely designed to provide a grounded carrier supporting inner and outer sets of planetary gears operative to rotate an ungrounded annulus gear and a meshing annulus plate in the same direction as the input shaft. A sun gear, having a predetermined number of helical teeth, is formed on the input shaft while the annulus gear has a predetermined number of internal teeth exactly twice the number of sun gear teeth. A clutch collar is internally splined on the output shaft and has external splines operative, when the collar is shifted into its low-range mode, to engage internal splines on the annulus plate and drive the transfer case output shaft at the two-to-one gear reduction ratio.
摘要翻译： 一种用于二轮/四驱动车辆传动箱机构的双行星齿轮减速组件，在全时四轮驱动操作期间提供精确的二对一齿轮减速比。 双行星架被独特地设计成提供支撑内外套行星齿轮的接地托架，其可操作以沿与输入轴相同的方向旋转未接地的环形齿轮和啮合的环形板。 具有预定数量的螺旋齿的太阳齿轮形成在输入轴上，而环形齿轮具有预定数量的内齿，正好是太阳轮齿数的两倍。 离合器套环在输出轴上内花键，并且当套环移动到其低范围模式时具有外花键，以将内花键接合在环形板上并以二对一的方式驱动分动箱输出轴 减速比。
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公开(公告)号：US5743348A
公开(公告)日：1998-04-28
申请号：US387461
申请日：1995-02-13
申请人： Michael D. Coppola , Richard E. Eastman , Ronald J. Mayville , Christopher W. Phelan , Michael S. Tianello, Sr. , Alan P. Zajac , Sankar K. Mohan
发明人： Michael D. Coppola , Richard E. Eastman , Ronald J. Mayville , Christopher W. Phelan , Michael S. Tianello, Sr. , Alan P. Zajac , Sankar K. Mohan
CPC分类号： F16H63/3416 , B60K1/00 , F16H59/10
摘要： A power transfer system including a variable speed electric motor and a single speed transmission is disclosed for transferring power from a source of power to a pair of driven wheels. This arrangement is particularly adapted for use in electric vehicles incorporating a high speed electric motor. In a preferred embodiment, the single speed transmission includes a housing, an input shaft for receiving drive torque from the electric motor, at least one output shaft and an intermediate shaft supported for rotation of the housing between the input shaft and the output shaft. The single speed transmission further includes a parking sprag arrangement for preventing rotation of the output shaft when a park mode is selected. In one embodiment, the single speed transmission further includes a transfer mechanism for selectively transmitting the source of drive torque from the input shaft to the output shaft which includes a shift member movable between a first position for preventing relative rotation between the input shaft and the output shaft and a second position for establishing relative rotation between the input shaft and output shaft.
摘要翻译： 公开了一种包括变速电动机和单速变速器的动力传递系统，用于将动力从动力源传递到一对从动轮。 这种布置特别适用于并入高速电动机的电动车。 在优选实施例中，单速变速器包括壳体，用于接收来自电动机的驱动转矩的输入轴，至少一个输出轴和用于在输入轴和输出轴之间旋转壳体的中间轴。 单速变速器还包括一个停车滑块装置，用于在选择停车模式时防止输出轴的转动。 在一个实施例中，单速变速器还包括用于选择性地将驱动转矩源从输入轴传递到输出轴的转移机构，该输出轴包括可在第一位置和第二位置之间移动的换档构件，用于防止输入轴和输出端之间的相对旋转 轴和用于在输入轴和输出轴之间建立相对旋转的第二位置。
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公开(公告)号：US4798103A
公开(公告)日：1989-01-17
申请号：US133159
申请日：1987-12-11
CPC分类号： F16H37/046 , F16H3/66
摘要： An add-on overdrive unit for location on an extended output shaft of an automatic transmission. The unit includes a planetary gear set connected by means of its annulus gear to an outer face of a one-way clutch. The one-way clutch inner face is concentrically interconnected to the transmission output shaft. An hydraulic piston operates a first direct-drive clutch pack and a second overdrive clutch pack. The piston is normally biased to its non-pressurized failsafe direct drive position by a compression coil spring. As a result the direct drive clutch pack is engaged causing the planetary sun gear to be locked to the annulus gear providing a one-to-one direct drive speed ratio to the overdrive output shaft via the engaged one-way clutch outer race. Upon the piston being pressurized the overdrive clutch pack is engaged and the direct drive clutch pack is released grounding the sun gear to the overdrive case. In its overdrive mode torque is transferred from the transmission output shaft via a planet carrier ring, the planet gears and the annulus gears to the outer face of the disengaged one-way clutch. Thus, drive torque is transferred through the direct-drive clutch pack only in the reverse mode of the transmission.
摘要翻译： 一个附加的过驱动单元，用于定位在自动变速器的扩展输出轴上。 该单元包括通过其环形齿轮连接到单向离合器的外表面的行星齿轮组。 单向离合器内表面与变速器输出轴同心连接。 液压活塞操作第一直接驱动离合器组件和第二超速离合器组件。 活塞通常被压缩螺旋弹簧偏压到其非加压故障安全直接驱动位置。 结果，直接驱动离合器组件被接合，使得行星太阳齿轮被锁定到环形齿轮，通过接合的单向离合器外圈与过驱动输出轴提供一对一的直接驱动速度比。 当活塞被加压时，超速离合器组件被接合并且直接驱动离合器组件被释放将太阳齿轮接地到超速传动壳体。 在其过驱动模式中，扭矩通过行星架环，行星齿轮和环形齿轮从变速器输出轴传递到分离的单向离合器的外表面。 因此，仅在变速器的反向模式下，驱动转矩通过直接驱动离合器组件传递。
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公开(公告)号：US4677873A
公开(公告)日：1987-07-07
申请号：US812661
申请日：1985-12-23
IPC分类号： B60K17/346 , F16H37/08
CPC分类号： B60K17/3467
摘要： A dual planetary differential for a two wheel/four wheel drive vehicle transfer case mechanism providing an unequal torque split between the front and rear wheels during its full-time four wheel drive operation. The dual planetary gear set may be shifted by means of a mode clutch to provide either four wheel drive with full-time differentiation between the front and rear wheels or a part-time four wheel drive mode wherein the dual planetary is in a locked-up condition. The first and second sun gears of the dual planetary have unequal diameters with differing numbers of teeth such that, for example, proportionally more torque is transferred to the rear wheels than the front wheels. The sun gears have complementary frusto-conical web portions arranged in a juxtaposed compact manner within the transfer case.
摘要翻译： 用于双轮/四轮驱动车辆转移箱机构的双行星差速器，其在全时四轮驱动操作期间在前轮和后轮之间提供不相等的扭矩分配。 双行星齿轮组可以通过模式离合器移动，以提供在前轮和后轮之间具有全时差异的四轮驱动，或者是双重行星齿轮被锁定的部分时间四轮驱动模式 条件。 双行星齿轮的第一和第二太阳齿轮具有不同数量的齿的不相等的直径，使得例如比前轮成比例地将更多的转矩传递到后轮。 太阳齿轮具有互补的截头圆锥形腹板部分，其以并置紧密的方式布置在转移壳体内。
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10.发明授权On-demand transfer case with synchronized range shift and adaptive clutch control 失效具有同步范围换档和自适应离合器控制的按需转移箱公开(公告)号：US06398688B2
公开(公告)日：2002-06-04
申请号：US09883701
申请日：2001-06-18
IPC分类号： B60K17344
CPC分类号： B60K23/0808 , B60K17/3467
摘要： A full-time power transfer system is disclosed to include a transfer case having a clutch assembly arranged to control speed differentiation and torque biasing across an interaxle differential, sensors for detecting and generating sensor signals indicative of various dynamic and operational characteristics of the vehicle, and a controller for controlling actuation of the clutch assembly in response to the sensor signals. Upon the occurrence of traction loss, the clutch assembly is automatically actuated for limiting interaxle slip while transferring increased drive torque to the non-slipping driveline. Under a preferred adaptive control scheme, the actuated condition of the clutch assembly is controllably modulated between its non-actuated and fully-actuated limits for automatically varying the magnitude of speed differentiation and torque biasing across the interaxle differential in response to changes in the dynamic and operational characteristics of the vehicle.
摘要翻译： 公开了一种全职电力传输系统，其包括具有离合器组件的传送箱，该离合器组件布置成控制跨越差速器间的速度差异和扭矩偏置，用于检测和产生指示车辆的各种动态和操作特性的传感器信号的传感器，以及 用于响应于传感器信号控制离合器组件的致动的控制器。 在发生牵引损失时，离合器组件被自动地启动，以限制桥间滑动，同时将增加的驱动扭矩传递到非滑动传动系。 在优选的自适应控制方案下，离合器组件的致动状态在其非致动和完全致动极限之间被可控制地调节，用于响应于动态和变化的自动变化而自动改变横跨差速器的速度差异的大小和扭矩偏置 车辆的运行特性。
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