Front and rear wheel steering device
    12.
    发明授权
    Front and rear wheel steering device 失效
    前后轮转向装置

    公开(公告)号:US4706976A

    公开(公告)日:1987-11-17

    申请号:US822010

    申请日:1986-01-24

    IPC分类号: B62D6/02 B62D7/14 B62D7/15

    CPC分类号: B62D7/1545

    摘要: In a front and rear wheel steering device for a vehicle in which the steering angle ratio of the rear wheels relative to the front wheels is variable according to the vehicle speed, by accounting for the magnitude of vehicle acceleration in determining the steering angle ratio of the rear wheels by using a mathematical function in the form of f(u) - g(u')where u is a vehicle speed and u' is a change rate of the vehicle speed, it is possible to reduce the slip angle of the vehicle to zero irrespective of the vehicle speed and the vehicle acceleration and the phase delay of the lateral response of the vehicle can be reduced, whereby the driveability of the vehicle is substantially improved and, thus, driving a car can be made easier, safer and less tiring.

    摘要翻译: 在前轮和后轮转向装置中,其中后轮相对于前轮的转向角比可根据车速而变化,通过考虑确定车辆的转向角比的车辆加速度的大小, 通过使用f(u)-g(u')形式的数学函数,其中u是车速,u'是车速的变化率,可以减小车辆的滑移角 无论车速如何,车辆的加速度和车辆的横向响应的相位延迟都可以减小,由此可以显着提高车辆的驾驶能力,因此可以使驾驶汽车更容易,更安全,更少 累了

    Front and rear wheel steering device
    13.
    发明授权
    Front and rear wheel steering device 失效
    前后轮转向装置

    公开(公告)号:US4695068A

    公开(公告)日:1987-09-22

    申请号:US822000

    申请日:1986-01-24

    IPC分类号: B62D7/15 B62D6/00

    CPC分类号: B62D7/1545

    摘要: In a front and rear wheel steering device contive for vehicle in which the steering angle ratio of the rear wheels relative to the front wheels is variable according to the vehicle speed, provision of a manual selection means for fixing the steering angle ratio to certain fixed values which may be either positive or negative can greatly improve the maneuverability of the vehicle in both high speed and low speed ranges. However, inadvertent manual selection of the steering angle ratio is not desirable since it may cause a sudden change in the steering angle of the rear wheels. Therefore, this invention provides means for preventing the manual selection of the steering angle ratio when it is not proper. This means may be an active prohibition control of manual steering angle ratio selection means, an alarm to warn the driver or a vehicle speed control which limits the vehicle speed. The situations in which the manual selection of the steering angle ratio is not proper may be determined from such factors as vehicle acceleration, transmission shift position, steering rate and so on.

    摘要翻译: 在后轮相对于前轮的转向角比可根据车速而变化的车辆用后轮转向装置中,设置用于将转向角比固定为某一固定值的手动选择装置 其可以是正的或负的可以大大提高车辆在高速和低速范围内的机动性。 然而,无意的手动选择转向角比是不期望的,因为它可能导致后轮的转向角的突然变化。 因此,本发明提供了当不适当时防止手动选择转向角比的装置。 这意味着可以是手动转向角比选择装置的主动禁止控制,警告驾驶员的警报或限制车辆速度的车速控制。 可以根据车辆加速度,变速档位,转向率等因素来确定手动选择转向角比例不正确的情况。

    Lubrication structure of electro-magnetic clutch
    14.
    发明授权
    Lubrication structure of electro-magnetic clutch 有权
    电磁离合器的润滑结构

    公开(公告)号:US06427817B1

    公开(公告)日:2002-08-06

    申请号:US09677876

    申请日:2000-10-03

    IPC分类号: F16D1374

    摘要: An electromagnetic clutch having a solenoid coil (80), a coil housing (81) disposed surrounding the solenoid coil (80), an armature plate (82) disposed facing the side of the coil housing, and a clutch mechanism. The current flowing to the solenoid coil (80) is controlled so as to control the clamping of the armature plate (82) to the coil housing (81), and the clamping force acting on the armature plate is used to control the engagement of the clutch mechanism. There is also a lubricating oil supply channel (63) for supplying lubricating oil from the inside in the radial direction into a gap between the coil housing and the armature plate, and oil reservoir holding lubricating oil to be supplied into the gap is formed around the inner periphery of the portion where the coil housing faces the armature plate.

    摘要翻译: 一种具有电磁线圈(80)的电磁离合器,围绕所述螺线管线圈(80)设置的线圈壳体(81),与所述线圈壳体的侧面相对设置的衔铁板(82)和离合器机构。 控制流向螺线管线圈(80)的电流,以控制衔铁板(82)与线圈壳体(81)的夹持,并且使用作用在衔铁板上的夹紧力来控制 离合器机构。 还有一个用于从径向内侧将润滑油从径向供给到线圈壳体和衔铁板之间的间隙的润滑油供给通道(63),并且在其周围形成供给到间隙中的储油容器保持润滑油 线圈壳体面向电枢板的部分的内周。

    Four-wheel drive vehicle
    15.
    发明授权
    Four-wheel drive vehicle 失效
    四轮驱动车

    公开(公告)号:US6095276A

    公开(公告)日:2000-08-01

    申请号:US5690

    申请日:1998-01-13

    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。

    Anti-lock brake control method for vehicle
    16.
    发明授权
    Anti-lock brake control method for vehicle 失效
    车辆防抱死制动控制方法

    公开(公告)号:US5000522A

    公开(公告)日:1991-03-19

    申请号:US286014

    申请日:1988-12-19

    CPC分类号: B60T8/1769 Y10S303/06

    摘要: In a vehicle having a pair of left and right coaxially disposed wheels operatively coupled together via a differential gear which serves to restrict an increase in the difference in rotational speed between the wheels, a method to carry out anti-lock control of both the wheels concurrently during braking operation by utilizing a higher one of the wheel speeds thereof. This enhances braking efficiency and only one control channel is required for the wheels.

    摘要翻译: 在具有通过差速齿轮可操作地联接在一起的一对左右同轴布置的车辆的车辆中,用于限制车轮之间的转速差的增加,同时执行两个车轮的防抱死控制的方法 在制动操作期间通过利用其较高的一个车轮速度。 这提高了制动效率,并且对于车轮仅需要一个控制通道。

    Four-wheel drive motor vehicle having a controlled differential device
    17.
    发明授权
    Four-wheel drive motor vehicle having a controlled differential device 失效
    具有受控差动装置的四轮驱动机动车辆

    公开(公告)号:US4921065A

    公开(公告)日:1990-05-01

    申请号:US175827

    申请日:1988-03-31

    摘要: A motor vehicle such as a four-wheel drive vehicle having a first axle shaft which is driven by a drive source and a second axle shaft which is driven by the same drive source, each of a pair of wheels associated with the second axle shaft being powered by way of individual variable torque transmitting devices, further comprising: a steering condition sensor; and a control unit which reduces a torque transmission ratio of one of the variable torque transmitting devices corresponding to the inner one of the wheels of the second axle shaft when the steering condition sensor has detected a steering angle greater than a prescribed value. Thereby, the problem of the tight turn braking can be avoided without losing the advantages of four-wheel drive. Other driving conditions such as braking and acceleration as well as an excessive temperature increase in each of the variable torque transmitting devices may be taken into consideration in carrying out the control of the variable torque transmitting devices which preferably consist of viscous couplings. Each of the viscous couplings is provided with means for externally varying the torque transmission ratio thereof and transmits torque between input and output thereof at a level which is substantially proportional to the speed difference between input and output thereof.

    摘要翻译: 诸如四轮驱动车辆的机动车辆具有由驱动源驱动的第一车轴和由相同驱动源驱动的第二车轴,与第二车轴相关联的一对车轮中的每一个 通过单个可变扭矩传递装置进行动力,还包括:转向状态传感器; 以及控制单元,当所述转向状态传感器已经检测到大于规定值的转向角时,所述控制单元减小与所述第二车轴的所述车轮的内侧相对应的所述可变转矩传递装置中的一个的转矩传递比。 因此,可以避免紧凑制动的问题,而不失去四轮驱动的优点。 在执行优选由粘性联轴器组成的可变扭矩传递装置的控制中,可以考虑其他驱动条件,例如制动和加速以及每个可变扭矩传递装置中的过度升温。 每个粘性联轴器都设置有用于外部改变其扭矩传递比的装置,并以其输入和输出之间的速度差基本成比例的水平传递其输入和输出之间的扭矩。

    Front and rear wheel steering device
    18.
    发明授权
    Front and rear wheel steering device 失效
    前后轮转向装置

    公开(公告)号:US4697816A

    公开(公告)日:1987-10-06

    申请号:US822043

    申请日:1986-01-24

    CPC分类号: B62D7/1545

    摘要: In a front and rear wheel steering device for a vehicle in which the steering angle ratio of the rear wheels relative to the front wheels is variable according to the vehicle speed, by accounting for the magnitude of vehicle acceleration in determining the steering angle ratio of the rear wheels by selecting a mathematical function from a plurality thereof, the vehicle response particularly in high speed range can be improved. Smooth transition from a certain characteristics to another may be achieved either by preparing a number of mathematical functions of vehicle speed for the steering angle ratio of the rear wheels or providing some time delay in the transition from one characteristics to another, preferably in proportion to the magnitude of the vehicle acceleration.

    摘要翻译: 在前轮和后轮转向装置中,其中后轮相对于前轮的转向角比可根据车速而变化,通过考虑确定车辆的转向角比的车辆加速度的大小, 通过从多个数学函数中选择数学函数,可以提高特别是在高速范围内的车辆响应。 从一定特性到另一特性的平滑过渡可以通过为后轮的转向角比准备多个车速的数学函数或者在从一个特性到另一特性的转变中提供一些时间延迟来实现,优选地与 车辆加速度的大小。

    Control device for in-wheel transmissions in an electric vehicle
    19.
    发明授权
    Control device for in-wheel transmissions in an electric vehicle 有权
    电动车辆中车轮传动的控制装置

    公开(公告)号:US06688412B2

    公开(公告)日:2004-02-10

    申请号:US09939737

    申请日:2001-08-28

    IPC分类号: B60K100

    摘要: A control device for in-wheel transmissions in an electric vehicle, each of which comprises a stepped transmission that transmits power from each motor to each vehicle wheel. The control device is arranged to alleviate gear-change shock without increasing the number of steps of the in-wheel transmissions. Gear-change of the in-wheel transmissions of the vehicle wheels is effected with a time difference between the vehicle wheels. The change of acceleration produced by the gear change thereby occurs in such a manner that the change of acceleration is dispersed in regard to time, so the gear-change shock is alleviated compared with the case where gear-change of the four wheels is performed simultaneously.

    摘要翻译: 一种用于电动车辆中的车轮传动的控制装置,其中每个控制装置包括从每个电动机向每个车轮传递动力的阶梯式变速器。 控制装置布置成在不增加轮内传动的步数的情况下减轻换档冲击。 车轮的轮内变速器的变速是通过车轮之间的时间差来实现的。 换档时产生的加速度的变化因此以相对于时间分散加速度的变化的方式发生,因此与同时进行四轮的变速的情况相比,可以减轻变速冲击 。