公开(公告)号：US4757870A

公开(公告)日：1988-07-19

申请号：US830015

申请日：1986-02-18

申请人： Shuuji Torii ,  Yuji Kobari ,  Kiyotaka Ozaki

发明人： Shuuji Torii ,  Yuji Kobari ,  Kiyotaka Ozaki

IPC分类号： B60K17/35 ,  B60K23/08 ,  F16H48/18 ,  B60K17/34

CPC分类号： B60K23/0808 ,  B60K17/35 ,  Y10T477/613

摘要： A four wheel drive system of a vehicle has a transfer clutch capable of varying clutch torque transmitted therethrough from an engine to front wheels. The clutch torque is controlled by a driving force distribution control unit in accordance with a front and rear wheel speed difference determined from signals from front and rear wheel speed sensors. Preferably, the control unit controls a distribution ratio of a front wheel driving force to a rear wheel driving force by controlling the clutch torque of the transfer clutch in such a manner that the distribution ratio decreases as the wheel speed difference increases when the wheel speed difference is positive, that is the front wheel speed is higher than the rear wheel speed, and that the distribution ratio increases as the absolute value of the wheel speed difference increases when the wheel speed difference is negative.

摘要翻译： 车辆的四轮驱动系统具有转换离合器，其能够将从发动机传递的离合器扭矩改变为前轮。 离合器扭矩由驱动力分配控制单元根据从前轮速度传感器和后轮速度传感器的信号确定的前轮速度差和后轮速度差来控制。 优选地，控制单元通过控制转移离合器的离合器扭矩来控制前轮驱动力与后轮驱动力的分配比，使得当车轮速度差异 是正的，即前轮速度高于后轮速度，并且当车轮速度差为负时，分配比随着车轮速度差的绝对值而增加。

公开(公告)号：US4678056A

公开(公告)日：1987-07-07

申请号：US783562

申请日：1985-10-03

申请人： Yuji Kobari ,  Keiichi Miyamoto

发明人： Yuji Kobari ,  Keiichi Miyamoto

IPC分类号： G01W1/00 ,  B60K23/08 ,  B60T8/32 ,  B60T8/58 ,  G01N29/00 ,  G01S15/88 ,  B62D1/24

CPC分类号： B60K23/08 ,  B60T8/322 ,  B60T8/58

摘要： A four wheel drive motor vehicle is equipped with a change-over unit for selecting a four wheel drive mode or a two wheel drive mode, a road surface condition sensing sonar system, and an actuator for actuating the change-over unit to change the drive system to the four wheel drive mode when the road surface condition sensing system determines that the road surface is slippery. The road surface condition sensing means has ultrasonic transmitter and receiver, and a control unit such as a microcomputer for determining whether the intensity of waves reflected from the road surface is equal to or lower than a predetermined value.

摘要翻译： 四轮驱动机动车辆配备有用于选择四轮驱动模式或二轮驱动模式的转换单元，路面状况检测声纳系统和用于致动转换单元以改变驱动器的致动器 系统到四轮驱动模式时，路面状况检测系统确定路面是滑的。 路面条件检测装置具有超声波发送器和接收器，以及用于确定从路面反射的波的强度是否等于或低于预定值的诸如微计算机的控制单元。

公开(公告)号：US5167493A

公开(公告)日：1992-12-01

申请号：US791836

申请日：1991-11-14

申请人： Yuji Kobari

发明人： Yuji Kobari

IPC分类号： F04B1/053 ,  F04B49/22

CPC分类号： F04B1/0536 ,  F04B49/225

摘要： A positive-displacement type pump system, such as a fixed-cylinder type radial piston pump system, includes a common pump housing formed with a plurality of cylinders, and a plurality of pistons slidably received in the respective cylinders and cooperating therewith to form a plurality of pump units. A first throttle valve is disposed in a first suction passage of a first group of the pump units for operating a first actuator, for adjusting the flow rate of a working fluid to be supplied to the these pump units. A second throttle valve is disposed in a second suction passage of a second group of the pump units for operating a second actuator, for adjusting the flow rate of the working fluid to be supplied to the pump units of the second group independently from those of the first group. The pump units of the first and second groups can thus be individually adjusted in terms of the respective delivery volumes.

摘要翻译： 诸如固定圆筒型径向柱塞泵系统的正排量型泵系统包括形成有多个气缸的公共泵壳体和可滑动地容纳在各个气缸中的多个活塞并与之协作以形成多个 的泵单元。 第一节流阀设置在第一组泵单元的第一吸入通道中，用于操作第一致动器，用于调节供应给这些泵单元的工作流体的流量。 第二节流阀设置在第二组泵单元的第二抽吸通道中，用于操作第二致动器，用于调节要供应到第二组的泵单元的工作流体的流量，独立于 第一组。 因此，第一组和第二组的泵单元可以根据相应的输送量单独调节。

公开(公告)号：US4520777A

公开(公告)日：1985-06-04

申请号：US445558

申请日：1982-11-30

申请人： Yukiyoshi Hatori ,  Eiji Yagi ,  Yuji Kobari

发明人： Yukiyoshi Hatori ,  Eiji Yagi ,  Yuji Kobari

IPC分类号： F02D41/08 ,  B62D5/06 ,  F02D29/02 ,  F02M3/00

CPC分类号： B62D5/06

摘要： A vehicular power steering system has on/off control means for controlling a hydraulic fluid pump in accordance with steering effort applied on a steering wheel. On the other hand, a sensing means senses vehicle speed. Judging means is connected with the on/off control means and the vehicle speed sensing means, and produces an actuating signal when the control means produces a control signal to drive the fluid pump and at the same time the sensed vehicle speed is below a predetermined speed. A solenoid valve is connected with the judging means. The solenoid valve is arranged to open and close a bypass passage which allows an air fuel mixture to bypass a throttle valve for an intake air flow control of the engine. Thus, the supply of an air fuel mixture to the engine is increased in response to the actuating signal, and the engine idling speed is stabilized.

摘要翻译： 车辆动力转向系统具有根据施加在方向盘上的转向力的控制液压泵的开/关控制装置。 另一方面，感测装置感测车速。 判断装置与开/关控制装置和车速检测装置连接，并且当控制装置产生驱动流体泵的控制信号并且同时检测到的车速低于预定速度时产生致动信号 。 电磁阀与判断装置连接。 电磁阀被布置成打开和关闭旁路通道，其允许空气燃料混合物绕过节流阀以用于发动机的进气流量控制。 因此，响应于致动信号，向发动机的空气燃料混合物的供应增加，并且发动机空转速度稳定。

公开(公告)号：US4973294A

公开(公告)日：1990-11-27

申请号：US259659

申请日：1988-10-19

申请人： Yuji Kobari ,  Takashi Imaseki

发明人： Yuji Kobari ,  Takashi Imaseki

IPC分类号： B60K23/04 ,  B62D9/00 ,  F16D48/12

CPC分类号： B60K23/04 ,  B62D9/00

摘要： A control system for controlling a differential limiting force of a limited slip differential of a vehicle includes a section for sensing a turning radius of the vehicle, a section for sensing centripetal acceleration of the vehicle, and a controller section. The controller section increases an engagement force of a differential limiting clutch of the limited slip differential in accordance with the turning radius and the centripetal acceleration.

公开(公告)号：US4953654A

公开(公告)日：1990-09-04

申请号：US256518

申请日：1988-10-13

申请人： Takashi Imaseki ,  Yuji Kobari

发明人： Takashi Imaseki ,  Yuji Kobari

IPC分类号： B60K23/04 ,  F16D48/12

CPC分类号： B60K23/04 ,  Y10T477/606

摘要： A differential limiting torque control system for a vehicle includes a differential limiting clutch provided in a differential, a sensing section including sensors such as an accelerator position sensor, and sensors for sensing speeds of left and right front wheels and left and right rear wheels, and a control unit controlling a differential limiting torque of the differential limiting clutch in accordance with an accelerator opening degree of movement, a left and right drive wheel speed difference, and a drive wheel slip which is represented, for example, by a front and rear wheel speed difference, in such a manner that the differential limiting torque is held equal to a difference obtained by subtraction whose subtrahend is a quantity proportional to the drive wheel slip, and whose minuend is a sum of a quantity proportional to the accelerator opening degree and a quantity proportional to the left and right drive wheel speed difference. The control unit may further control the differential limiting torque in accordance with a lateral acceleration in such a manner that the subtrahend is decreased with increase of the lateral acceleration.

摘要翻译： 用于车辆的差速限制转矩控制系统包括设置在差速器中的差速器限位离合器，包括诸如加速器位置传感器的传感器的感测部分和用于感测左右前轮和左后轮和右后轮的速度的传感器，以及 控制单元，其根据加速器开度，左右驱动轮速度差和驱动轮滑动来控制差速限制离合器的差速限制转矩，所述驱动轮滑动例如由前轮和后轮 速度差，使得差速限制转矩被保持等于通过减法获得的差值，其减法是与驱动轮滑移成比例的量，并且其减数是与加速器开度成比例的量的和 数量与左右驱动轮速度差成比例。 控制单元还可以根据横向加速度进一步控制差速限制转矩，使得减速随侧向加速度的增加而减小。

公开(公告)号：US5075854A

公开(公告)日：1991-12-24

申请号：US565207

申请日：1990-08-09

申请人： Takashi Imaseki ,  Yuji Kobari

发明人： Takashi Imaseki ,  Yuji Kobari

IPC分类号： B60K23/04 ,  F16D48/12

CPC分类号： B60K23/04 ,  Y10T74/19172 ,  Y10T74/19177

摘要： A differential limiting force control system for controlling a slip limiting force by controlling an engagement force of a clutch assembly of a limited slip differential provided between left and right drive wheels of a vehicle includes a control unit having a basic control section for increasing the differential limiting force with increase of a vehicle speed, and an adjusting section for decreasing the differential limiting force when a steering angle is equal to or lower than a predetermined angle, or when a steering angular speed is equal to or higher than a predetermined angle.

公开(公告)号：US5005131A

公开(公告)日：1991-04-02

申请号：US247466

申请日：1988-09-21

申请人： Takashi Imaseki ,  Yuji Kobari

发明人： Takashi Imaseki ,  Yuji Kobari

IPC分类号： B60K23/04 ,  F16D48/12

CPC分类号： B60K23/04

摘要： A differential is provided with a clutch variable in engagement for producing a slip limiting force for limiting a differential action even during cornering of a vehiocle. A force for urging the clutch for engagement is reduced for thereby reducing the slip limiting force in response to increase of a driving wheel slip during cornering of the vehicle.

摘要翻译： 差速器设置有离合器可变接合，用于产生用于限制车辆转弯期间的差速动作的滑差限制力。 用于推动离合器接合的力减小，从而响应于车辆转弯期间的驱动轮滑动的增加而减小滑动限制力。

公开(公告)号：US4941095A

公开(公告)日：1990-07-10

申请号：US247464

申请日：1988-09-21

申请人： Takashi Imaseki ,  Yuji Kobari

发明人： Takashi Imaseki ,  Yuji Kobari

IPC分类号： B60K23/04 ,  B62D6/00 ,  B62D7/14 ,  B62D7/15 ,  B62D105/00 ,  B62D137/00 ,  F16D48/12

CPC分类号： B62D7/159 ,  B60K23/04

摘要： A four-wheel steer control device has an actuator for actuating a set of steerable rear wheels for controlling the positions of the rear wheels by the operation of the actuator. A slip control device for a differential has a clutch for supplying a variable slip limiting force to the differential to limit a differential action thereof variably. An integrated control system controls the four-wheel steer control device and the slip control device in such a way that the rear wheels are correctively steered in the direction opposite to that of the front wheels at the time of cornering of the vehicle and when the slip limiting force is larger than a predetermined value and a cornering outside driving wheel speed is faster than a cornering inside driving wheel speed.

摘要翻译： 四轮转向控制装置具有用于致动一组可转向后轮的致动器，用于通过致动器的操作来控制后轮的位置。 用于差速器的滑差控制装置具有用于向差速器提供可变滑动限制力的离合器，以可变地限制其差动作用。 集成控制系统控制四轮转向控制装置和滑动控制装置，使得后轮在车辆转弯时以与前轮相反的方向被校正地转向，并且当滑动 限制力大于预定值，并且转弯外侧驱动轮速度比驱动轮速度内的转弯速度快。

公开(公告)号：US4921060A

公开(公告)日：1990-05-01

申请号：US251169

申请日：1988-09-28

申请人： Takashi Imaseki ,  Yuji Kobari

发明人： Takashi Imaseki ,  Yuji Kobari

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/0195 ,  B60K23/04 ,  F16D48/12

CPC分类号： B60G17/0162 ,  B60G17/0195 ,  B60K23/04 ,  B60G2204/80 ,  B60G2400/208 ,  B60G2800/012 ,  B60G2800/0122 ,  B60G2800/21 ,  B60G2800/215 ,  B60G2800/9122 ,  B60G2800/93

摘要： An integrated roll rigidity and differential slip control system for a wheeled vehicle comprises roll rigidity changing means for changing roll rigidity distribution to front and rear wheel sides, roll rigidity control means for controlling the operation of said roll rigidity changing means based on vehicle running conditions, a differential interposed between the rear wheels, clutch means for supplying a slip limiting force to the differential to limit differential action thereof, and slip control means for controlling engagement of the clutch means based on vehicle running conditions and integrated control means for controlling, in preference to the control by the roll rigidity control means, the roll rigidity distribution in such a way that a roll rigidity is larger on the front wheel side and smaller on the rear wheel side in response to a cornering condition in which a driving force is distributed more to a cornering outside driving wheel than to a cornering inside driving wheel.