公开(公告)号：US5135071A

公开(公告)日：1992-08-04

申请号：US462384

申请日：1990-01-09

申请人： Yasuji Shibahata ,  Shyoji Tokushima ,  Yoshinobu Ezure ,  Kazuhiko Shimada

发明人： Yasuji Shibahata ,  Shyoji Tokushima ,  Yoshinobu Ezure ,  Kazuhiko Shimada

IPC分类号： B60K17/348 ,  B60K17/35

CPC分类号： B60K17/348 ,  B60K17/3505 ,  F16H48/10

摘要： A power transmitting apparatus on a four-wheel-drive motor vehicle can distribute and transmit drive power from a power unit to front and rear drive road wheels such that the rotational speeds of the front and rear drive road wheels can differ from each other. The power transmitting apparatus includes a casing rotatable by the drive power from the power unit, an output shaft disposed in the casing, first and second planetary gear mechanisms disposed between the casing and the output shaft, the first and second planetary gear mechanisms comprising first and second ring gears fixed to an inner periphery of the casing, first and second sun gears aligned with the first and second ring gears, respectively, first and second planet gears meshing with the first ring and sun gears and the second ring and sun gears, respectively, and rotatable about their own axes and the ring gears, and a planet carrier coupled to the output shaft, the first and second planet gears being rotatably supported on the planet carrier, the first and second planetary gear mechanisms having different speed-changing ratios, one of the speed-changing ratios being selected such that the rear drive road wheels rotate faster than the front drive road wheels, first and second clutches coupled respectively to the first and second sun gears, respectively, for selectively holding the first and second sun gears nonrotatable thereby to enable the first and second planetary gear mechanisms to transmit the drive power, and a pair of variable-torque-transmitting clutches coupled to respective ends of the output shaft.

摘要翻译： 四轮驱动机动车辆上的动力传递装置可以将动力单元的驱动力分配到前后驱动车轮，使得前后驱动车轮的转速彼此不同。 动力传递装置包括：壳体和输出轴之间的第一和第二行星齿轮机构，通过来自动力单元的驱动力旋转的壳体，设置在壳体内的输出轴，第一和第二行星齿轮机构， 第二环形齿轮固定到壳体的内周边，分别与第一和第二环形齿轮对准的第一和第二太阳齿轮分别与第一环和太阳齿轮啮合的第一和第二行星齿轮以及第二环和太阳齿轮 并且可围绕其自身的轴线和环形齿轮旋转，以及联接到输出轴的行星架，第一和第二行星齿轮可旋转地支撑在行星架上，第一和第二行星齿轮机构具有不同的变速比， 选择变速比中的一个，使得后驱动车轮比前驱动车轮旋转得更快，第一和第二离合器 分别耦合到第一和第二太阳齿轮，用于选择性地保持第一和第二太阳轮不可旋转，从而使第一和第二行星齿轮机构能够传递驱动力，以及一对可变扭矩传递离合器 到输出轴的相应端部。

公开(公告)号：US5056614A

公开(公告)日：1991-10-15

申请号：US514448

申请日：1990-04-25

申请人： Shyoji Tokushima ,  Makoto Watanabe

发明人： Shyoji Tokushima ,  Makoto Watanabe

IPC分类号： B60K23/08 ,  F16D48/02

CPC分类号： B60K23/0808 ,  F16H48/10

摘要： An apparatus for controlling the distribution of drive power in an all-wheel-drive motor vehicle which has main drive wheels, auxiliary drive wheels, and a drive power transmitting system for transmitting the drive power to the auxiliary drive wheels. The apparatus has a hydraulic pressure source, a hydraulic system, a hydraulic clutch disposed in the drive power transmitting system, which varies the drive power transmitted to the auxiliary drive wheels, depending on the hydraulic pressure supplied from the hydraulic pressure source to the hydraulic clutch through the hydraulic system, and a control system for controlling the ratio at which the drive power is distributed between the main and auxiliary drive wheels, through regulation of the hydraulic pressure supplied from the hydraulic pressure source to the hydraulic clutch. The apparatus further includes a failure detecting system for detecting a failure of the hydraulic system, and a hydraulic pressure lowering system for lowering the hydraulic pressure supplied from the hydraulic pressure source to the hydraulic clutch when a failure of the hydraulic system is detected by the failure detecting system.

摘要翻译： 一种用于控制具有主驱动轮的全轮驱动机动车辆中的驱动力分配的装置，辅助驱动轮和用于将驱动力传递到辅助驱动轮的驱动力传递系统。 该装置具有液压源，液压系统，设置在驱动动力传递系统中的液压离合器，其根据从液压源供给到液压离合器的液压而改变传递到辅助驱动轮的驱动力 通过液压系统，以及控制系统，用于通过调节从液压压力源供给到液压离合器的液压来控制驱动力分配在主驱动轮与辅助驱动轮之间的比例。 该装置还包括用于检测液压系统的故障的故障检测系统和用于在由故障检测到液压系统的故障时将从液压源供给的液压降低到液压离合器的液压降低系统 检测系统。