公开(公告)号：US4809176A

公开(公告)日：1989-02-28

申请号：US921468

申请日：1986-10-22

申请人： Nobutaka Oowa ,  Yasuji Arai ,  Osamu Yasuike ,  Hiroyuki Ikemoto ,  Shunichi Doi

发明人： Nobutaka Oowa ,  Yasuji Arai ,  Osamu Yasuike ,  Hiroyuki Ikemoto ,  Shunichi Doi

IPC分类号： B60G17/016 ,  B60G17/00

CPC分类号： B60G17/0162 ,  Y10S280/01

摘要： In this system for vehicle roll control, a plurality of duty radio controlled actuator assemblies are provided, one corresponding to each one of the vehicle wheels, and resiliently suspended from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding vehicle wheel as a result of the supplying or discharging of working fluid to or from its pressure chamber. Working fluid supplying and discharging means supply working fluid to and discharge working fluid from the pressure chambers of the actuator assemblies. The system further includes means for sensing the road speed of the vehicle, and means for sensing the steering angle of the vehicle. Vehicle height detection means are also provided for sensing the heights of the vehicle above the vehicle wheels. A means for computing and control calculates the deviations of the actual detected vehicle body heights from standard vehicle body heights; when a certain condition is satisfied, it controls the working fluid supplying and discharging means according to a first duty ratio according to the deviations of the actual vehicle body heights, so as to maintain the deviations of the actual vehicle body heights within predetermined ranges; and then it controls the working fluid supplying and discharging means in the reverse order according to a second duty ratio.

摘要翻译： 在这种车辆侧倾控制系统中，设有多个负责无线电控制的致动器组件，一个对应于车轮中的每一个，并且弹性地悬挂在车身上。 这些致动器组件具有压力室，并且每个都适于在工作流体向其压力室供应或排出工作流体的结果时，增加或减少与其对应的车轮相对应的位置处的车辆高度。 工作流体供应和排放装置向工作流体提供工作流体并从致动器组件的压力室排出工作流体。 该系统还包括用于感测车辆的道路速度的装置和用于感测车辆的转向角的装置。 车辆高度检测装置还用于感测车辆上方车辆的高度。 计算和控制的手段计算实际检测到的车身高度与标准车身高度的偏差; 当满足一定条件时，根据实际车身高度的偏差，根据第一占空比控制工作流体供给和排出装置，以将实际车身高度的偏差保持在预定范围内; 然后根据第二占空比以相反的顺序控制工作流体供给和排出装置。

公开(公告)号：US4821191A

公开(公告)日：1989-04-11

申请号：US921450

申请日：1986-10-22

申请人： Hiroyuki Ikemoto ,  Yasuji Arai ,  Osamu Yasuike ,  Nobutaka Oowa ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Yasuji Arai ,  Osamu Yasuike ,  Nobutaka Oowa ,  Shunichi Doi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016

CPC分类号： B60G17/016 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/414 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2400/44 ,  B60G2400/51 ,  B60G2400/60 ,  B60G2400/61 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/182 ,  B60G2600/70 ,  B60G2800/16 ,  B60G2800/204 ,  B60G2800/914

摘要： In this vehicle height adjustment system, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber. Working fluid supply/discharge means are provided corresponding to the actuator assemblies and supply and discharge working fluid to and from their pressure chambers. Wheel loading detection means are provided for sensing parameters representative of the loadings imposed by the vehicle body on the wheels, and vehicle height detection means are provided for sensing the heights of the vehicle above the wheels. A means for computing and control controls the working fluid supply/discharge means, based on the deviations of the actual wheel heights from standard wheel heights, and carries out control adjustment of the actual wheel heights to the standard wheel heights by, at least when the vehicle speed is below a determinate value, carrying out a correction to the adjustment control of the working fluid supply/discharge means, based upon the deviations of the actual wheel loadings from standard wheel loadings, by an amount appropriate substantially to eliminate the loading deviations.

摘要翻译： 在该车辆高度调节系统中，设置有多个致动器组件，一个对应于车辆车轮中的每一个并且将其从车身弹性悬挂。 这些致动器组件具有压力室，并且每个都适于在对应于其对应的车轮的位置处增加或减少车辆高度，作为将工作流体供给或排出到其压力室的相应结果。 工作流体供应/排出装置相应于致动器组件设置，并且将工作流体从其压力室供给和排出工作流体。 提供车轮负载检测装置，用于感测代表车体对车轮施加的载荷的参数，并且提供车辆高度检测装置，用于感测车轮上方车辆的高度。 基于实际车轮高度与标准车轮高度的偏差，计算和控制控制工作流体供应/排出装置的装置，并且至少当至少在 车速低于确定值，基于实际车轮负载与标准车轮负载的偏差，对工作流体供给/排出装置的调节控制进行校正，基本上消除负载偏差的量。

公开(公告)号：US4821188A

公开(公告)日：1989-04-11

申请号：US921451

申请日：1986-10-22

申请人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasuji Arai ,  Osamu Yasuike ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasuji Arai ,  Osamu Yasuike ,  Shunichi Doi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/10

CPC分类号： B60G17/0162

摘要： In this vehicle height adjustment system, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber. Working fluid supply/discharge means are provided corresponding to the actuator assemblies and supply and discharge working fluid to and from their pressure chambers. Vehicle height detection means are provided for sensing the heights of the vehicle above the wheels. A means detects the rate of change of the steering angle of the vehicle. And a means for computing and control controls the working fluid supply/discharge means, based on the deviations of the actual wheel heights from standard wheel heights, and carries out control adjustment of the actual wheel heights to the standard wheel heights, by performing a prediction calculation of the fluctuations in wheel heights caused by vehicle rolling from the rate of change of steering angle as detected by the means for detecting the rate of change of steering angle and from the vehicle speed as detected by the vehicle speed detecting means, and by carrying out a correction to the adjustment control of the working fluid supplying and discharging means, based upon the calculation result, by an amount appropriate substantially to eliminate the wheel height fluctuations.

摘要翻译： 在该车辆高度调节系统中，设置有多个致动器组件，一个对应于车辆车轮中的每一个并且将其从车身弹性悬挂。 这些致动器组件具有压力室，并且每个都适于在对应于其对应的车轮的位置处增加或减少车辆高度，作为将工作流体供给或排出到其压力室的相应结果。 工作流体供应/排出装置相应于致动器组件设置，并且将工作流体从其压力室供给和排出工作流体。 提供车辆高度检测装置，用于感测车轮上方车辆的高度。 一种装置检测车辆转向角的变化率。 并且，基于实际车轮高度与标准车轮高度的偏差，计算和控制的装置控制工作流体供给/排出装置，并且通过执行预测来执行实际车轮高度对标准车轮高度的控制调整 通过由车速检测装置检测到的用于检测转向角的变化率和车速的装置检测到的转向角变化率，计算车辆滚动导致的车轮高度的波动， 基于计算结果，对基本上消除车轮高度波动的量进行基于工作流体供给和排出装置的调节控制的校正。

公开(公告)号：US4803627A

公开(公告)日：1989-02-07

申请号：US17592

申请日：1987-02-24

申请人： Osamu Yasuike ,  Yasuji Arai ,  Hiroyuki Ikemoto ,  Nobutaka Owa ,  Shunichi Doi

发明人： Osamu Yasuike ,  Yasuji Arai ,  Hiroyuki Ikemoto ,  Nobutaka Owa ,  Shunichi Doi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G21/06

CPC分类号： B60G17/0162

摘要： In this system for vehicle roll control, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. Each of these actuator assemblies is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding vehicle wheel as results of control signals being supplied to it. A plurality of control means are provided corresponding to the actuator assemblies and serve to supply control signals to them. A vehicle speed detecting means senses the road speed of the vehicle, a steering angle detecting means senses the steering angle of the vehicle, and a lateral acceleration detecting means detects the lateral acceleration of the vehicle body. A means for computing and control predictingly computes the roll angle of the vehicle body from the vehicle speed sensed by the vehicle speed detecting means and the steering angle sensed by the steering angle detecting means, and controls the plurality of actuator assemblies, via the plurality of control means, in accordance with the computed roll angle, so as to reduce the rolling of the vehicle body to keep the vehicle body rolling within a determinate range. This computing and control means is further adapted to compare the direction of vehicle steering as detected by the steering angle detecting means with the direction of lateral acceleration of the vehicle body as detected by the lateral acceleration detecting means, and does not effect such controlling of the plurality of actuator assemblies, when the direction of vehicle steering is opposite to the direction of lateral acceleration of the vehicle body.

摘要翻译： 在该车辆侧倾控制系统中，设置有多个致动器组件，一个对应于车轮中的每一个并且使其从车体弹性悬挂。 这些致动器组件中的每一个适于在对应于其对应的车轮的位置处增加或减少车辆高度，作为向其提供的控制信号的结果。 对应于致动器组件提供多个控制装置，并用于向它们提供控制信号。 车速检测装置感测车辆的道路速度，转向角检测装置感测车辆的转向角，横向加速度检测装置检测车身的横向加速度。 用于计算和控制的装置根据车速检测装置感测到的车速预测车身的侧倾角和由转向角检测装置检测到的转向角度，并且经由多个致动器组件 控制装置，根据计算出的滚动角度，以便减少车身的滚动，使车体滚动保持在确定的范围内。 该计算和控制装置还适于将由转向角检测装置检测到的车辆转向方向与由横向加速度检测装置检测到的车体横向加速度的方向进行比较，并且不影响 当车辆转向的方向与车身的横向加速度的方向相反时，多个致动器组件。

公开(公告)号：US4797823A

公开(公告)日：1989-01-10

申请号：US921138

申请日：1986-10-21

申请人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

IPC分类号： B60G17/016 ,  B60G17/00

CPC分类号： B60G17/0162

摘要： In this roll control system, suspension means are provided for resiliently suspending the vehicle wheels with variable hardness/softness characteristics, each suspension means including an actuator with a pressure chamber which increases or decreases wheel suspension height according to the supply or discharge of working fluid. Working fluid supply/discharge means are provided for the actuators, to supply and discharge working fluid to and from actuator pressure chambers. The road speed, the steering angle, and the actual body roll angle are detected. Means for computing and control computes a steady state vehicle body roll angle .phi..sub..infin. from the vehicle speed and steering angle, advances the phase of a signal indicative of .phi..sub..infin. to compute a compensating roll angle value .PHI..sub..infin., and then computes a difference value .phi. based upon a desired roll angle .phi..sub.a, .PHI..sub..infin., and the actual roll angle .phi..sub.t, according to the equation:.phi.=.phi..sub.a -(k1.PHI..infin.+k2.phi.t)where k1 and k2 are positive constants. The computing and control means is adapted to control the working fluid supplying and discharging means based upon .phi. when the absolute value of .phi. is larger than a predetermined value .phi..sub.1, and to control the hardness/softness characteristics of the suspension means according to the absolute value of .phi. when the absolute value of .phi. is smaller than .phi..sub.1.

摘要翻译： 在该辊控制系统中，提供悬挂装置用于弹性地悬挂具有可变硬度/柔软度特性的车轮，每个悬架装置包括具有压力室的致动器，该压力室根据工作流体的供给或排放而增加或减少车轮悬挂高度。 为致动器提供工作流体供应/排放装置，以将工作流体供给和排出到致动器压力室。 检测道路速度，转向角度和实际车身倾斜角度。 用于计算和控制的装置根据车辆速度和转向角度计算稳态车体侧倾角度phi INFINITY，使表示phi INFINITY的信号的相位前进，以计算补偿侧倾角度值PHI INFINITY，然后计算差值phi 基于期望的滚动角度phi，PHI INFINITY和实际滚动角度，根据以下等式：其中k1和k2是正常数的公式：phi = phi a-（k1 PHI INFINITY + k2 phi t） 计算和控制装置适用于当phi的绝对值大于预定值phi 1时基于phi控制工作流体供给和排出装置，并且根据绝对值控制悬挂装置的硬度/柔软度特性 当phi的绝对值小于phi 1时，phi的值。

公开(公告)号：US4765649A

公开(公告)日：1988-08-23

申请号：US26468

申请日：1987-03-16

申请人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/02

CPC分类号： B60G17/0162 ,  B60G2202/42 ,  B60G2204/80 ,  B60G2300/02 ,  B60G2300/14 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2400/44 ,  B60G2400/60 ,  B60G2500/102 ,  B60G2500/22 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/26 ,  B60G2600/70 ,  B60G2600/82 ,  B60G2800/012 ,  B60G2800/24

摘要： In this system for vehicle roll control, a suspension device or an actuator is provided corresponding to each wheel of a vehicle, and resiliently suspends it from the vehicle body. Each such suspension device can alter its hardness or softness characteristics according to a control signal, while similarly the actuators are adapted to alter the suspended height of their wheels. A vehicle speed detecting device senses road speed, a steering angle detecting device senses steering angle, and a device detects the total vehicle body weight. A computing control device computes a predictive roll angle of the vehicle body from road speed and steering angle, and: if suspension devices are provided, controls them to be relatively hard when the absolute value of the predictive roll angle is larger than a threshold value, while controlling them to be relatively soft when the absolute value of the predictive roll angle is less than this threshold value; while, if actuators are provided, when the absolute value of the predictive roll angle is larger than a threshold value, it controls them in accordance with this predictive roll angle. Particularly, this computing device varies the threshold roll angle value according to the total vehicle body weight as detected by the weight detector, so as to decrease the threshold roll angle value along with increase of the total vehicle body weight.

摘要翻译： 在该车辆侧倾控制系统中，与车辆的各车轮相对应地设置有悬挂装置或致动器，并将其从车体弹性地悬挂。 每个这样的悬挂装置可以根据控制信号改变其硬度或柔软度特性，而类似地，致动器适于改变其车轮的悬挂高度。 车速检测装置感测道路速度，转向角检测装置感测转向角，并且装置检测总车体重量。 计算控制装置根据道路速度和转向角度来计算车体的预测侧倾角，并且，如果设置了悬架装置，则当预测侧倾角的绝对值大于阈值时，控制它们相对较硬， 同时当预测滚动角度的绝对值小于该阈值时，控制它们相对较软; 而如果提供致动器，则当预测滚动角度的绝对值大于阈值时，它根据该预测滚动角度来控制它们。 特别地，该计算装置根据由重量检测器检测到的总车辆体重来改变阈值滚转角度值，以便随着总车辆体重的增加而降低阈值滚动角度值。

公开(公告)号：US4693493A

公开(公告)日：1987-09-15

申请号：US921251

申请日：1986-10-21

申请人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Nobutaka Oowa ,  Yasutaka Hayashi ,  Shunichi Doi

IPC分类号： B60G17/016 ,  B60G17/04 ,  B60G11/26

CPC分类号： B60G17/0162 ,  B60G17/0432 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/414 ,  B60G2202/42 ,  B60G2204/80 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/33 ,  B60G2400/41 ,  B60G2400/44 ,  B60G2500/102 ,  B60G2500/22 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/182 ,  B60G2600/184 ,  B60G2600/26 ,  B60G2600/70 ,  B60G2600/82 ,  B60G2800/012 ,  B60G2800/24

摘要： In this system for vehicle roll control, a plurality of actuator assemblies are provided, one corresponding to each one of the vehicle wheels and resiliently suspending it from the vehicle body. These actuator assemblies have pressure chambers, and each is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding vehicle wheel as respective results of supplying or discharging of working fluid to or from its pressure chamber. A plurality of working fluid supplying and discharging valves are provided corresponding to the actuator assemblies and serve to supply working fluid to the working fluid chambers and to discharge working fluid from the working fluid chambers. A vehicle speed detector senses the road speed of the vehicle, and a steering angle detector senses the steering angle of the vehicle. A control computer computes a steady state roll angle .phi..sub..infin. of the vehicle body from the vehicle speed sensed by the vehicle speed detector and the steering angle sensed by the steering angle detector, and computes a difference value .phi. based thereon, the control computer being adapted to control the working fluid supplying and discharging valves according to the difference value .phi. when the absolute value of the difference value .phi. is larger than a determinate value.

摘要翻译： 在该车辆侧倾控制系统中，设置有多个致动器组件，一个对应于车轮中的每一个并且使其从车体弹性悬挂。 这些致动器组件具有压力室，并且每个都适于在对应于其对应的车轮的位置处增加或减少车辆高度，作为将工作流体供应或从其压力室排出的各自结果。 多个工作流体供给和排出阀对应于致动器组件设置，用于向工作流体室供应工作流体并从工作流体室排出工作流体。 车辆速度检测器检测车辆的道路速度，并且转向角检测器感测车辆的转向角。 控制计算机根据由车速检测器感测到的车速和由转向角检测器感知到的转向角度来计算车体的稳态滚动角度phi INFINITY，并且基于此计算差值phi，控制计算机被适配 当差值phi的绝对值大于确定值时，根据差值phi控制工作流体供给和排出阀。

公开(公告)号：US4807128A

公开(公告)日：1989-02-21

申请号：US16944

申请日：1987-02-20

申请人： Hiroyuki Ikemoto ,  Nobutaka Owa ,  Yasutaka Hayashi ,  Shunichi Doi

发明人： Hiroyuki Ikemoto ,  Nobutaka Owa ,  Yasutaka Hayashi ,  Shunichi Doi

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G11/26

CPC分类号： B60G17/0162 ,  B60G2202/42 ,  B60G2204/80 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/33 ,  B60G2400/41 ,  B60G2500/102 ,  B60G2500/22 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/14 ,  B60G2600/26 ,  B60G2600/70 ,  B60G2600/82 ,  B60G2800/012 ,  B60G2800/24

摘要： In this system for vehicle roll control, one actuator assembly is provided corresponding to each vehicle wheel and resiliently suspends it from the vehicle body. Each of these actuator assemblies is adapted to increase or decrease the vehicle height at its vehicle wheel as a result of a control signal being supplied. Control means are provided corresponding to the actuator assemblies and serve to supply control signals to them. A vehicle speed detecting means senses road speed, a steering angle detecting means senses steering angle, a means senses the rate of change of steering angle, and a means detects the actual roll angle .phi..sub.t of the vehicle body. A computing and control means computes a steady state roll angle .phi..sub..infin. of the vehicle body from the vehicle speed and the steering angle, advances the phase of a signal representative of the steady state roll angle .phi..sub..infin. to thereby compute a compensating value .PHI..sub..infin. of roll angle, computes an amendment value .phi..sub.x of roll angle in accordance with the rate of change of steering angle, computes the difference .phi. based upon the desired roll angle .phi..sub.a of the vehicle body, the compensating value .PHI..sub..infin., the amendment value .phi..sub.x, and the actual roll angle .phi..sub.t following the equation: .phi.=.phi.a- (k.sub.1 .PHI..sub..infin. +k.sub.2 .PHI.t+k.sub.3 .PHI.x), where k1, k2 and k3 are positive constants; and controls the actuator assemblies, via the control means, in accordance with the difference .phi., when the absolute value of the difference .phi. is larger than a predetermined value.

摘要翻译： 在该车辆侧倾控制系统中，对应于每个车轮提供一个致动器组件，并将其从车身弹性地悬挂。 这些致动器组件中的每一个适于由于提供控制信号而增加或减少其车轮上的车辆高度。 对应于致动器组件提供控制装置并且用于向它们提供控制信号。 车速检测装置感测道路速度，转向角检测装置感测转向角，手段感测转向角的变化率，并且装置检测车身的实际侧倾角。 计算和控制装置根据车速和转向角计算车身的稳态滚动角度phi INFINITY，使代表稳态滚动角度phi INFINITY的信号的相位前进，从而计算出补偿值PHI INFINITY 根据转向角的变化率来计算侧倾角度的修正值φi，根据车身的期望的倾斜角度phi a，补偿值PHI INFINITY，修正值phi x，和实际滚动角度phi，遵循以下等式：phi = phi a-（k1 PHI INFINITY + k2 PHI t + k3 PHI x），其中k1，k2和k3是正常数; 并且当差值phi的绝对值大于预定值时，经由控制装置根据差分phi来控制致动器组件。

公开(公告)号：US07275793B2

公开(公告)日：2007-10-02

申请号：US10477877

申请日：2002-04-02

申请人： Etsunori Fujita ,  Seiji Kawasaki ,  Yumi Ogura ,  Eiichi Yasuda ,  Shunichi Doi ,  Etsuko Kato ,  Katsuya Ibaraki

发明人： Etsunori Fujita ,  Seiji Kawasaki ,  Yumi Ogura ,  Eiichi Yasuda ,  Shunichi Doi ,  Etsuko Kato ,  Katsuya Ibaraki

IPC分类号： B60N2/50

CPC分类号： A47C31/006 ,  B60N2/58 ,  B60N2/70 ,  D04B21/16 ,  D10B2403/0211 ,  D10B2403/0213 ,  D10B2403/0221

摘要： A seat includes a seat frame, and a cushion material supported by the seat frame and having a three-dimensional knitted fabric which is formed by joining, with connecting threads, a pair of ground knit fabrics which are disposed so as to be separated from one another. The cushion material includes a first region whose elastic compliance when a reaction force is applied to an extending side of the cushion material when an occupant is seated on the seat is substantially equivalent to an elastic compliance of a portion of the occupant's body pressing the cushion material and a second region whose elastic compliance is larger than that of the first region. Accordingly, a thin and light seat can be provided, load concentration on the occupant's tuber ishiadicum bottom portion when seated for a long period of time can be mitigated, and vibration-transmitting characteristics can be improved.

摘要翻译： 座椅包括座椅框架和由座椅框架支撑的缓冲材料，并且具有三维针织物，该三维针织织物通过与连接螺纹连接而形成，所述三维针织织物布置成与一个针织物分离 另一个。 衬垫材料包括当乘员坐在座椅上时将反作用力施加到衬垫材料的延伸侧时的弹性柔量的第一区域基本上等于乘坐人体的一部分按压衬垫材料的弹性柔量 以及弹性柔量大于第一区域的第二区域。 因此，可以提供薄而轻的座椅，能够减轻长时间坐着时对乘员的块茎尾部的负荷集中，能够提高振动传递特性。

公开(公告)号：US4700971A

公开(公告)日：1987-10-20

申请号：US735972

申请日：1985-05-20

申请人： Shunichi Doi ,  Noboru Sugiura ,  Yasutaka Hayashi ,  Yuzo Yamamoto

发明人： Shunichi Doi ,  Noboru Sugiura ,  Yasutaka Hayashi ,  Yuzo Yamamoto

IPC分类号： B60G17/06 ,  B60G17/015 ,  B60G17/018

CPC分类号： B60G17/018 ,  B60G2300/34 ,  B60G2400/102 ,  B60G2400/204 ,  B60G2400/206 ,  B60G2400/252 ,  B60G2400/82 ,  B60G2401/10 ,  B60G2401/12 ,  B60G2500/10 ,  B60G2500/40 ,  B60G2600/02 ,  B60G2600/12 ,  B60G2600/14 ,  B60G2600/16 ,  B60G2600/182 ,  B60G2600/26 ,  B60G2800/012 ,  B60G2800/014

摘要： An active suspension apparatus detects an absolute acceleration Z in a passenger's compartment of a vehicle and a relative displacement X between an axle and a body, calculates an absolute value .vertline.Z.vertline. of the absolute acceleration, an absolute value .vertline.X.vertline. of the relative displacement and an absolute value .vertline.X.vertline. of a rate X of change in relative displacement, multiplies the absolute values .vertline.X.vertline., .vertline.X.vertline., and .vertline.Z.vertline. with coefficients A11, A12 and A13, and adding the resultant product to obtain a sum Y=A11.vertline.X.vertline.+A12.vertline.X.vertline.+A13.vertline.Z.vertline., compares the sum Y with a reference value C for evaluating the predetermined movement of the vehicle, and controls the damping forces of the hydropneumatic springs, thereby improving steering stability and riding comfort.

摘要翻译： 主动悬架装置检测车辆乘客舱内的绝对加速度Z和轴与车身之间的相对位移X，计算绝对加速度的绝对值| Z |，相对位移的绝对值| 和相对位移变化率X的绝对值| X |乘以系数A11，A12和A13的绝对值| X |，| X |和| Z |，并将所得乘积相加以获得总和 将总和Y与用于评估车辆的预定运动的参考值C进行比较，并且控制液压气动弹簧的阻尼力，从而提高操纵稳定性和 乘坐舒适。