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    • 1. 发明专利
    • Driving force distribution device
    • 驱动力分配装置
    • JP2014024495A
    • 2014-02-06
    • JP2012167929
    • 2012-07-30
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAISHI TORUMORI ATSUHIROMITSUISHI SHUNICHISAKAGAMI EIGOOGAWA KATSUYOSHI
    • B60K17/348F16H13/04
    • F16H13/10F16H13/14
    • PROBLEM TO BE SOLVED: To suggest a driving force distribution device capable of quickly detecting turning amount of a roller to be turned for torque transmission capacity control.SOLUTION: A driving force distribution device 1 controls driving force distribution between main driving wheels 6L and 6R and driven wheels 9L and 9R by turning a second roller 32 (one of a first roller 31 and a second roller 32) and regulating radial direction pressing force between the rollers. The driving force distribution device 1 comprises: a structure 510 suppressing the turning of the second roller 32 at a prescribed position; and a reference point setting section 117 which turns the second roller 32 in one direction, detects a position where the turning is suppressed by the structure 510 and sets a reference point on the basis of the detected position. Turning amount (crankshaft rotary angle θ) of the second roller 32 is detected on the basis of the reference point set by the reference point setting section 117, and driving force distribution control is performed on the detected turning amount.
    • 要解决的问题:提出能够快速检测用于转矩传递容量控制的转向辊的转动量的驱动力分配装置。解决方案:驱动力分配装置1控制主驱动轮6L和6R之间的驱动力分布,以及 通过转动第二辊32(第一辊31和第二辊32中的一个)并调节辊之间的径向压力,从动轮9L和9R。 驱动力分配装置1包括:抑制第二辊32在规定位置的转动的结构510; 以及在一个方向上转动第二辊32的基准点设定部117,检测由结构510抑制了转动的位置,并根据检测到的位置设定基准点。 基于由基准点设定部117设定的基准点来检测第二辊32的转动量(曲轴旋转角度&重量),并且对检测到的转动量进行驱动力分配控制。
    • 4. 发明专利
    • Roller frictional transmission unit
    • 滚子式传动单元
    • JP2012121473A
    • 2012-06-28
    • JP2010274249
    • 2010-12-09
    • Nissan Motor Co Ltd日産自動車株式会社
    • SAKAGAMI EIGOTAKAISHI TORU
    • B60K17/344F16H13/04
    • B60K17/344F16C19/30F16H13/02
    • PROBLEM TO BE SOLVED: To prevent an increase in contact pressure as a result of receiving a biased thrust load by a thrust bearing of a roller, when a unit housing is deformed by radial pressing reaction force between rollers.SOLUTION: Rotation of a first roller 21 which rotates together with an input shaft 12, is transmitted to a second roller 22 which is pressed against an outer circumference, and taken out from an output shaft 13. Shafts 12 and 13 are bent by the radial pressing reaction force between the rollers, and the unit housing 11 is elastically deformed so that sidewall center sections 11c and 11d can approach each other. Thereby, thrust in a compression direction tends to concentrate in a small area within a circle region of the thrust bearings 23 and 25 facing the center sections 11c and 11d of the unit housing sidewall. Then, thrust buffer members 31 and 32 are inserted in a thrust transmission path between the thrust bearings 23 and 25 and the unit housing 11, and a thrust load is dispersed in a wide area such as γ' or δ', to reduce the contact pressure.
    • 要解决的问题:为了防止由于滚子的推力轴承受到偏置的推力负载而导致的接触压力的增加,当单元壳体通过辊之间的径向挤压反作用力而变形时。 解决方案:与输入轴12一起旋转的第一辊21的旋转传递到第二辊22,第二辊22被压靠在外周上并从输出轴13中取出。轴12和13弯曲 通过辊之间的径向按压反作用力,并且单元壳体11弹性变形,使得侧壁中心部分11c和11d可以彼此靠近。 因此,压缩方向的推力倾向于集中在面向单元壳体侧壁的中心部分11c和11d的推力轴承23和25的圆形区域内的小区域中。 然后,将推力缓冲部件31,32插入到推力轴承23,25与单元壳体11之间的推力传递路径中,推力载荷分散在诸如γ'或δ'的广泛区域,以减少接触 压力。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Driving force distribution device
    • 驱动力分配装置
    • JP2014040157A
    • 2014-03-06
    • JP2012182945
    • 2012-08-22
    • Nissan Motor Co Ltd日産自動車株式会社
    • SAKAGAMI EIGOMORI ATSUHIROMITSUISHI SHUNICHITAKAISHI TORUOGAWA KATSUYOSHI
    • B60K17/348F16H13/04
    • PROBLEM TO BE SOLVED: To provide a driving force distribution device capable of suppressing a judder due to self-excited vibrations.SOLUTION: A driving force distribution device 1 adjusts the diametrical direction pressing force TETS of a first roller 31 and a second roller 32 to make traction force TFμ between rollers variable, and controls driving force distribution between main driving wheels (right and left rear wheels 6R and 6L) and driven wheels. The driving force distribution device 1 includes: speed difference increase tendency determining means (a speed difference increase tendency determining portion 103) for determining whether rotation speed difference Δv between the rollers tends to increase; and traction force correction controlling means (a traction force correction controlling portion 104) for increasing the diametrical direction pressing force TETS, when it is determined that the rotation speed difference Δv between the rollers tends to increase.
    • 要解决的问题:提供一种能够抑制由于自激振动引起的抖动的驱动力分配装置。解决方案:驱动力分配装置1将第一辊31和第二辊32的直径方向按压力TETS调整为 使辊之间的牵引力TFμ可变,并且控制主驱动轮(左后轮6R和6L)与从动轮之间的驱动力分配。 驱动力分配装置1包括:速度差增大趋势确定装置(速度差增大趋势确定部分103),用于确定滚子之间的转速差Dgr; v趋于增加; 以及当确定辊之间的转速差Dgr; v趋于增加时,用于增加直径方向按压力TETS的牵引力校正控制装置(牵引力校正控制部分104)。
    • 7. 发明专利
    • Drive power distribution device
    • 驱动电源分配设备
    • JP2014019168A
    • 2014-02-03
    • JP2012156116
    • 2012-07-12
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAISHI TORUMORI ATSUHIROMITSUISHI SHUNICHISAKAGAMI EIGOOGAWA KATSUYOSHI
    • B60K17/348F16H13/04F16H57/021
    • F16H13/04B60K17/344B60K17/35F16H13/02
    • PROBLEM TO BE SOLVED: To provide a drive power distribution device capable of realizing a stable housing assembly state even if a first roller abuts a second roller with inclination.SOLUTION: In a drive power distribution device, a shaft portion of a second roller is freely rotatably supported in an eccentric hollow hole of a crank shaft, the second roller is rotated by rotation of the crank shaft about a stationary-shaft axis, and pressing force of the second roller against a first roller in a radial direction is adjusted, to control drive-power distribution between a main drive wheel and a sub-drive wheel. In the device, a first angle is an angle formed between the axis of the first roller and that of the second roller. An angle formed by an abutting surface between the first roller and a first side-wall and by an abutting surface between a bearing support and a housing is a predetermined angle larger than zero degrees. An angle formed by an abutting surface between the second roller and a second side-wall and by an abutting surface between the bearing support and housing is an angle produced by subtracting a predetermined angle from the first angle.
    • 要解决的问题:提供一种能够实现稳定的壳体组装状态的驱动配电装置,即使第一辊与倾斜的第二辊抵接。解决方案:在驱动配电装置中,第二辊的轴部自由地 可旋转地支撑在曲轴的偏心中空孔中,第二辊通过曲柄轴绕固定轴的旋转而旋转,并且调节第二辊相对于第一辊沿径向的按压力,以控制 主驱动轮和副驱动轮之间的驱动力分配。 在该装置中,第一角度是在第一辊的轴线和第二辊的轴线之间形成的角度。 由第一辊和第一侧壁之间的抵接表面以及轴承支撑件和壳体之间的邻接表面形成的角度是大于零度的预定角度。 由第二辊和第二侧壁之间的邻接表面以及轴承支撑件和壳体之间的邻接表面形成的角度是从第一角度减去预定角度产生的角度。
    • 8. 发明专利
    • Roller type friction transmission unit
    • 滚子式摩擦传动单元
    • JP2012107721A
    • 2012-06-07
    • JP2010258044
    • 2010-11-18
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAISHI TORU
    • F16H13/04
    • F16H13/04B60K17/344F16H13/02
    • PROBLEM TO BE SOLVED: To reduce a surface pressure by bringing rollers into contact with each other at a plurality of positions in an axial direction, and to improve negative slope characteristics of traction coefficients relative to a roller sliding speed between the rollers so as to prevent judder.SOLUTION: In a first roller 21 and a second roller 22 in frictional contact with each other to transmit power, an outer peripheral surface 22a of the second roller 22 is formed in the shape of a cylindrical surface, while an outer peripheral surface 21a of the first roller 21 has undulations including three convex curved surfaces 21b, 21c, 21d with the central parts thereof protruding in the axial direction. The outer peripheral surface 22a of the first roller 21 is brought into contact with the outer peripheral surface 22a of the second roller 22 at three positions α1, α2, α3 in the axial direction corresponding to the apex positions of the convex curved surfaces 21b, 21c, 21d. As a result, the surface pressure between the rollers is reduced, to obtain variation characteristics, with a small negative slope region and a gentle negative slope, for traction coefficients relative to the inter-roller sliding speed, thereby preventing judder between the rollers.
    • 要解决的问题:通过使辊在轴向上的多个位置处彼此接触来降低表面压力,并且相对于辊之间的辊滑动速度改善牵引系数的负斜率特性,因此 以防止颤抖。 解决方案:在彼此摩擦接触以传递动力的第一辊21和第二辊22中,第二辊22的外周表面22a形成为圆柱形表面,而外周面 第一辊21的21a具有包括其中心部分沿轴向突出的三个凸曲面21b,21c,21d的起伏。 第一辊21的外周面22a在与凸曲面21b,21c的顶点位置对应的轴向的三个位置α1,α2,α3与第二辊22的外周面22a接触 ,21d。 结果,相对于辊间滑动速度,牵引系数相对于滚子间滑动速度而言,辊之间的表面压力减小,以获得具有小的负斜率区域和平缓的负斜率的变化特性,从而防止辊之间的颤动。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Driving force distribution device
    • 驱动力分配装置
    • JP2014034262A
    • 2014-02-24
    • JP2012175877
    • 2012-08-08
    • Nissan Motor Co Ltd日産自動車株式会社
    • TAKAISHI TORUMORI ATSUHIROMITSUISHI SHUNICHISAKAGAMI EIGOOGAWA KATSUYOSHI
    • B60K17/348F16H13/04F16H21/20
    • PROBLEM TO BE SOLVED: To keep high the lubricating oil fluidity between a second roller shaft part and a crankshaft in spite of existence of a seal for sealing the second roller shaft part rotating for controlling transmission capacity to a housing.SOLUTION: A working fluid scraped up by rotation of rollers 31, 32 for performing traction transmission advances from a gap between the roller 32 and a ring gear 51Lc as indicated by an arrow A1 through a thrust bearing 54L between them into an annular void between the left end part 13L of an output shaft and a crankshaft 51L. Since a radial oil hole 51Ld is provided in the crankshaft 51L between a seal ring 28 and a roller bearing 52L, the working fluid having advanced into the annular void flows through the roller bearing 52L as indicated by an arrow A2, and then returns to a lower oil sump of a housing 11 through the radial oil hole 51Ld as indicated by an arrow A3. Therefore, the fluidity of working fluid can be improved to surely lubricate the roller bearing 52L.
    • 要解决的问题:为了保持第二辊轴部分和曲轴之间的润滑油流动性,尽管存在用于密封第二辊轴部分的密封件,用于控制向壳体传输容量的旋转。解决方案:刮擦工作流体 通过用于执行牵引传动的辊31,32的旋转,通过箭头A1所示的辊32和齿圈51Lc之间的间隙通过它们之间的止推轴承54L从辊31,32的左端部13L之间的环形空隙 输出轴和曲轴51L。 由于径向油孔51Ld在密封环28和滚子轴承52L之间的曲轴51L中设置,所以进入环状空隙的工作流体如箭头A2所示流过滚子轴承52L,然后返回到 通过径向油孔51Ld如箭头A3所示的壳体11的下部油槽。 因此,可以提高工作流体的流动性,以可靠地润滑滚子轴承52L。