Tire pressure-reduction determining system for wheels of a vehicle
    102.
    发明授权
    Tire pressure-reduction determining system for wheels of a vehicle 失效
    车辆轮胎的轮胎减压判定系统

    公开(公告)号:US5747686A

    公开(公告)日:1998-05-05

    申请号:US729235

    申请日:1996-10-09

    CPC分类号: B60C23/061

    摘要: A reduction in pressure in tires fitted to follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels. A driven wheel slip rate calculating means M1 calculates driven wheel slip rates .lambda.L and .lambda.R. A driven wheel torque calculating means M2 calculates a driven wheel torque TQDW. A driven wheel slip rate estimating means M4 estimates a characteristic of variation in driven wheel slip rates .lambda.L and .lambda.R relative to the variation in driven wheel torque TQDW using a least squares method. A rotation-number ratio calculating means M5 calculates ratios CVWL and CVWR of the numbers of rotations of the follower wheels to the numbers of rotations of the driven wheels in a state in which the driven wheel torque in a graph of the variation characteristic is equal to zero. A tire pressure-reduction determining means M6 then determines a reduction in pressure from a difference in diameter between the follower wheels and the driven wheels by comparing the rotation-number ratios CVWL and CVWR with a reference value.

    摘要翻译: 无论滑动状态如何,精确地确定安装在从动轮和从动轮上的轮胎的压力降低。 从动轮滑移率计算装置M1计算从动轮滑移率λL和λR。从动轮转矩计算装置M2计算从动轮转矩TQDW。 从动轮滑移率估计装置M4使用最小二乘法估计从动轮滑移率λL和λR相对于从动轮转矩TQDW的变化的变化的特性。 旋转数比计算装置M5在变化特性的曲线图中的从动轮转矩等于等于的状态下计算从动轮的转数相对于从动轮的转数的比率CVWL和CVWR 零。 轮胎压力降低确定装置M6然后通过将旋转数比CVWL和CVWR与参考值进行比较来确定从从动轮和从动轮之间的直径差减小的压力。

    Longitudinal grip force estimating device and slip control device for
vehicle
    104.
    发明授权
    Longitudinal grip force estimating device and slip control device for vehicle 失效
    车辆纵向抓地力估计装置和滑移控制装置

    公开(公告)号:US5652383A

    公开(公告)日:1997-07-29

    申请号:US560097

    申请日:1995-11-17

    摘要: A first longitudinal grip force FGG is calculated by differentiating a vehicle body speed by time. A driven wheel torque is calculated from an engine torque and a second longitudinal grip force FGT is calculated from the driven wheel torque. The first longitudinal grip force FGG and the second longitudinal grip force FGT are compared with each other, and the higher one of such grip force is selected as a longitudinal grip force TG. When the vehicle travels on a normal flat road, the first longitudinal grip force FGG obtained from the vehicle body speed is selected. But when the vehicle travels on an ascent road, on which the first longitudinal grip does not indicate an accurate value, the second longitudinal grip force FGT obtained from the engine torque is selected. With this arrangement, the longitudinal grip force is accurately estimated even if the vehicle travels on such an ascent road.

    摘要翻译: 第一纵向夹紧力FGG是通过按照时间差分车体速度来计算的。 从发动机扭矩计算从动轮扭矩,并且根据从动轮扭矩计算第二纵向夹紧力FGT。 将第一纵向抓握力FGG和第二纵向抓握力FGT彼此进行比较,并且将这种夹持力中的较高者选择为纵向抓握力TG。 当车辆在正常平坦的道路上行驶时,选择从车体速度获得的第一纵向抓握力FGG。 但是,当车辆在上坡道上行驶时,第一纵向把手不指示准确值,则选择从发动机扭矩获得的第二纵向夹紧力FGT。 利用这种布置,即使车辆在这样的上升道路上行驶,也能够准确地估计纵向抓地力。

    Cathode-anode spacer comprising a projection of a length limited
relative to its distance to the cathode
    105.
    发明授权
    Cathode-anode spacer comprising a projection of a length limited relative to its distance to the cathode 失效
    阴极 - 阳极间隔物包括相对于其与阴极的距离限制的长度的突起

    公开(公告)号:US5637957A

    公开(公告)日:1997-06-10

    申请号:US617602

    申请日:1996-03-19

    CPC分类号: H01J19/44

    摘要: For use in vacuum between a cathode (21) and an anode (23) with avoidance of surface flashover resulting from a voltage supplied between the cathode and the anode, a dielectric spacer (25) has a side surface and a projection (27) protruded perpendicularly of the side surface. The projection has a length of projection from the side surface, a cathode side end having a cathode distance relative to the cathode, an anode side end, and a thickness having a center plane between the cathode and the anode side ends and nearer to the cathode than to the anode, a ratio of the length of projection to the cathode distance being not less than 0.4. The cathode comprises no protrusion in a face to face relation to the anode side end. It is possible to use the dielectric spacer between two electrodes supplied with an AC voltage.

    摘要翻译: 为了避免在阴极和阳极之间提供的电压引起的表面闪络,阴极(21)和阳极(23)之间的真空中使用,电介质间隔物(25)具有侧表面,突出部(27)突出 垂直于侧面。 突起具有从侧面突出的长度,阴极侧端部具有阴极相对于阴极的距离,阳极侧端部和具有阴极和阳极侧端部之间的中心面并且更靠近阴极的厚度 与阳极相比,投影长度与阴极距离的比值不小于0.4。 阴极不包括与阳极侧端面对面的突起。 可以使用提供有交流电压的两个电极之间的电介质间隔物。

    Dual conversion transmitter
    107.
    发明授权
    Dual conversion transmitter 失效
    双转换发射机

    公开(公告)号:US5410747A

    公开(公告)日:1995-04-25

    申请号:US92667

    申请日:1993-07-14

    摘要: A transmitter using a dual conversion system which effects frequency conversion twice has a local oscillator (113) for generating a first local oscillation signal, a multiplier (118) for multiplying the frequency of the first local oscillation signal to produce a second local oscillation signal, a first mixer (115) for mixing the first local oscillation signal and first IF signal to produce a second IF signal, and a second mixer (120) for mixing the second local oscillation signal and second IF signal to produce a signal to be transmitted. A voltage controlled filter (116) whose center frequency varies with the frequency of the first local oscillation signal is connected to the output of the first mixer (115).

    摘要翻译: 使用实现频率转换两次的双转换系统的发射机具有用于产生第一本地振荡信号的本地振荡器(113),用于乘以第一本地振荡信号的频率以产生第二本地振荡信号的乘法器(118) 用于混合第一本地振荡信号和第一IF信号以产生第二IF信号的第一混频器(115),以及用于混合第二本地振荡信号和第二IF信号以产生要发送的信号的第二混频器(120)。 其中心频率随着第一本地振荡信号的频率变化的电压控制滤波器(116)连接到第一混频器(115)的输出端。

    Catamaran
    108.
    发明授权
    Catamaran 失效
    双体船

    公开(公告)号:US5263427A

    公开(公告)日:1993-11-23

    申请号:US750858

    申请日:1991-08-29

    IPC分类号: B63B1/12 B63B1/10

    CPC分类号: B63B1/12

    摘要: A catamaran comprises two single hulls arranged in parallel in the spaced relation to each other, and a deck for connecting the two single hulls, the single hull having a semisubmerged portion and a connecting portion for connecting the semisubmerged portion to the deck, the semisubmerged portion having a maximum width portion where the width of its vertical transverse cross section is largest at a position near the water level, the width of vertical transverse cross section of the semisubmerged portion abruptly decreases upward in the vertical direction from the maximum width portion and gradually decreases downward in the vertical direction from the maximum width portion, the semisubmerged portion having a minimum width portion where the width of vertical transverse cross section becomes smallest after it abruptly decreases upward in the vertical direction, and the width of vertical transverse cross section of the minimum width portion is 60% or less and 30% or more of the width of vertical transverse cross section of the maximum width portion.

    Physical quantity control device usable in vehicle motion control
    109.
    发明授权
    Physical quantity control device usable in vehicle motion control 失效
    车辆运动控制中可用的物理量控制装置

    公开(公告)号:US5155686A

    公开(公告)日:1992-10-13

    申请号:US530361

    申请日:1990-05-30

    摘要: A physical quantity control device includes first and second control elements having different sensitivities from one another, the first and second control elements providing outputs to change at least one physical quantity in response to first and second operational quantities individually input to the first and second control elements. First and second computing circuits are provided for computing the first and second operational quantities in response to a deviation between a predetermined target value and the physical quantity, wherein the physical quantity is feedback controlled to converge with the predetermined target value. Further, first and second filters for passing frequencies individually corresponding to the sensitivies of the first and second control elements, respectively, the first filter being provided in a feedback loop including the first control elements and the first computing circuit, and the second filter being provided in a second feedback loop including the second control element and the second computing circuit. Further, the output of the first and second control elements is preferably input to an operation means to generate the physical quantity, wherein the physical quantity controlled is a vehicle motion.

    摘要翻译: 物理量控制装置包括彼此具有不同灵敏度的第一和第二控制元件,第一和第二控制元件响应于分别输入到第一和第二控制元件的第一和第二操作量而提供输出以改变至少一个物理量 。 提供第一和第二计算电路,用于响应于预定目标值与物理量之间的偏差来计算第一和第二操作量,其中物理量被反馈控制以与预定目标值收敛。 此外,第一和第二滤波器分别对与第一和第二控制元件的灵敏度相对应的频率通过,第一滤波器被提供在包括第一控制元件和第一计算电路的反馈回路中,并且第二滤波器被提供 在包括第二控制元件和第二计算电路的第二反馈回路中。 此外,第一和第二控制元件的输出优选地输入到操作装置以产生物理量,其中控制的物理量是车辆运动。

    Expansion valve
    110.
    发明授权
    Expansion valve 失效
    膨胀阀

    公开(公告)号:US5060485A

    公开(公告)日:1991-10-29

    申请号:US299427

    申请日:1989-01-23

    IPC分类号: F25B41/06 G05D23/12

    摘要: An improved expansion valve (10) disclosed for use with an air conditioning system (12) for an automobile. High pressure regrigerant flow is modulated through the valve by movement of a valve member (92) in response to the superheat of the low pressure refrigerant flow through a first passage (32) in the expansion valve. The low pressure regfrigerant superheat is sensed by a power element (74) containing an adsorbent and gas which deflects a diaphragm (82) to a degree related to the superheat of the low pressure flow. The diaphragm acts on an annular seal retainer (100) to modulate the position of the valve member (92). A cupshaped high pressure seal (104) is provided between the valve member (92) and wall of the passage (54) in which the valve member moves to balance the forces on the valve member exerted by the high pressure refrigerant. The balanced valve member allows use of a compact power element, permitting the body (30) of the valve (10) to be formed of plastic.

    摘要翻译: 公开了用于汽车的空调系统(12)的改进的膨胀阀(10)。 响应于通过膨胀阀中的第一通道(32)的低压制冷剂流的过热,通过阀构件(92)的运动通过阀调节高压再加工流。 低压制冷剂过热是由含有吸附剂的功率元件(74)和将隔膜(82)偏转到与低压流的过热相关的程度的气体来感测的。 隔膜作用在环形密封保持器(100)上以调节阀构件(92)的位置。 在阀构件(92)和通道(54)的壁之间设置有杯形高压密封件(104),阀构件移动到其中以平衡由高压制冷剂施加的阀构件上的力。 平衡阀构件允许使用紧凑的功率元件,允许阀(10)的主体(30)由塑料形成。