公开(公告)号：US4948164A

公开(公告)日：1990-08-14

申请号：US302975

申请日：1989-01-30

申请人： Sunao Hano ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Masaharu Satoh ,  Itaru Fujimura

发明人： Sunao Hano ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Masaharu Satoh ,  Itaru Fujimura

IPC分类号： B60G17/016 ,  B60G11/26

CPC分类号： B60G17/0163 ,  B60G2202/154 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/1042 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/41 ,  B60G2400/63 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/26 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/702

摘要： An actively controlled suspension system which can perform precise control of suspension characteristics with satisfactory compensation of phase delay caused in a control system. The actively controlled suspension system which can successfully avoid influence of the shifting of the gravity center of a vehicle body caused by a variation of load on the vehicle. The actively controlled suspension system employs more than one lateral acceleration sensor which are oriented at axially or longitudinally shifted positions to each other. Based on the outputs of respective lateral acceleration sensors, anti-rolling suspension control signals are produced for controlling suspension characteristics of the left- and right-sides of a suspension system.

公开(公告)号：US5114177A

公开(公告)日：1992-05-19

申请号：US365468

申请日：1989-06-12

申请人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Masaharu Satoh

发明人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Masaharu Satoh

IPC分类号： B60G17/015 ,  B60G17/0195 ,  B60T8/172 ,  B60T8/58

CPC分类号： B60G17/0195 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/208 ,  B60G2400/252 ,  B60G2400/82 ,  B60G2400/822 ,  B60G2500/40 ,  B60G2600/26 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/21

摘要： An anti-rolling suspension control system generally derives anti-rolling control signals for controlling suspension characteristics of respective suspension systems in order to suppress vehicular rolling motion. The system is further provided means for monitoring road friction condition. The system derives distribution of rolling moment distribution ratio between front suspension systems and rear suspension systems based on the monitored road friction condition so that the derived distribution may be adapted to the road surface frictional condition.

公开(公告)号：US5040115A

公开(公告)日：1991-08-13

申请号：US339834

申请日：1989-04-18

申请人： Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Masaharu Satoh

发明人： Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu ,  Itaru Fujimura ,  Masaharu Satoh

IPC分类号： G01P15/00 ,  B60G17/0195 ,  B60T8/1755 ,  B60T8/68 ,  G01P15/18

CPC分类号： B60T8/17551 ,  B60G17/0195 ,  B60G2400/10 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/208 ,  B60G2800/21 ,  B60G2800/90 ,  B60G2800/92 ,  B60T2230/02

摘要： A slip angle monitoring system directly compares an absolute value of lateral acceleration with an experimentarily derived given value which serves as a slip criterion to determine slip angle of a vehicle. Slip angle is set at zero while the absolute value of the lateral acceleration is smaller than or equal to the given value. On the other hand, when the absolute value is greater than the given value, the slip angle is derived by dividing the lateral acceleration by the longitudinal acceleration or by taking the minus one power of the tangent of the quotient obtained by dividing the lateral acceleration by the longitudinal acceleration, that is, the cotangent of the quotient.

摘要翻译： 滑移角监测系统直接将横向加速度的绝对值与用作滑移标准的实验导出的给定值进行比较，以确定车辆的滑移角。 滑动角度设定为零，而横向加速度的绝对值小于或等于给定值。 另一方面，当绝对值大于给定值时，滑移角通过将横向加速度除以纵向加速度或通过将通过将横向加速度除以所获得的商的正切值的负一个幂除以 纵向加速度，即商的余切度。

公开(公告)号：US5013061A

公开(公告)日：1991-05-07

申请号：US303338

申请日：1989-01-26

申请人： Itaru Fujimura ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu

发明人： Itaru Fujimura ,  Naoto Fukushima ,  Yukio Fukunaga ,  Yohsuke Akatsu

IPC分类号： B60G17/04 ,  B60G17/00 ,  B60G17/0185 ,  B60G23/00

CPC分类号： B60G17/0185 ,  B60G2500/02 ,  B60G2500/30 ,  B60G2600/08

摘要： An an actively controlled suspension system includes a fail-safe system which is associated with a pressure control valve and detective of failure of a control circuit to perform fail-safe operation. The fail-safe system operates the pressure control valve in response to failure of the control circuit, to fix the valve position corresponding to a working fluid pressure in a working chamber defined in a suspension cylinder disposed between a vehicular body and a suspension member rotatably supporting a vehicular wheel, at a pressure value at or in the vicinity of a predetermined initial or neutral pressure.

摘要翻译： 一个主动控制的悬挂系统包括与压力控制阀相关联的故障安全系统和控制电路故障执行故障安全操作的检测。 故障安全系统响应于控制电路的故障操作压力控制阀，将对应于工作流体压力的阀位置固定在限定在设置在车体和悬架构件之间的悬架的工作室中，所述悬架圆筒可旋转地支撑 在预定的初始或中立压力或附近的压力值下的车辆轮。

公开(公告)号：US5016907A

公开(公告)日：1991-05-21

申请号：US387271

申请日：1989-07-31

申请人： Yohsuke Akatsu ,  Naoto Fukushima ,  Itaru Fujimura ,  Yukio Fukunaga

发明人： Yohsuke Akatsu ,  Naoto Fukushima ,  Itaru Fujimura ,  Yukio Fukunaga

IPC分类号： B60G17/015 ,  B60G17/016

CPC分类号： B60G17/0162 ,  B60G2202/413 ,  B60G2204/80 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2401/10 ,  B60G2401/12 ,  B60G2500/10 ,  B60G2500/30 ,  B60G2600/70 ,  B60G2800/012 ,  B60G2800/24 ,  Y10S280/01

摘要： An active suspension control system employs a strategy minimum fluid pressure in the working chamber of an inside suspension system is reached at greater lateral acceleration than that via which at which the maximum fluid pressure in the working chamber of an outside suspension system is reached. The system also takes a strategy for adjusting the fluid pressure in the working chambers of the inside and outside suspension system inversely proportional to each other while the lateral acceleration is maintained smaller than a predetermined pressure at which the maximum fluid pressure in the working chamber of the outside suspension system is reached. This assures driving stability and riding comfort by permitting vehicular rolling in response to a lateral acceleration greater that a given lateral acceleration criterion.

摘要翻译： 主动悬架控制系统采用在内侧悬挂系统的工作室内的最小流体压力达到比通过外部悬架系统的工作室中的最大流体压力高的横向加速度的策略。 该系统还采取一种策略，用于调节内外悬架系统的工作室中的流体压力彼此成反比，而横向加速度保持小于预定压力，在该预定压力下工作室中的最大流体压力 外部悬挂系统达到。 通过允许车辆滚动响应于比给定的横向加速度标准更大的横向加速度来确保行驶稳定性和乘坐舒适性。

公开(公告)号：US4848790A

公开(公告)日：1989-07-18

申请号：US178066

申请日：1988-04-05

申请人： Yukio Fukunaga ,  Yoshiki Tsuda ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Sato

发明人： Yukio Fukunaga ,  Yoshiki Tsuda ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Sato

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/017 ,  B60G17/04 ,  B60K25/04 ,  F04B49/06

CPC分类号： B60G17/017 ,  F04B49/065 ,  B60G2500/02

摘要： A hydraulic pressure supply system includes a discharge rate variable fluid pump. The discharge rate of the fluid pump is controlled to vary depending upon the vehicle driving condition. In the control of the discharge rate of the fluid pump, greater discharge rate is ordered while the vehicle is running, than that during vehicle stopping condition.

公开(公告)号：US4967360A

公开(公告)日：1990-10-30

申请号：US266763

申请日：1988-11-03

申请人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Sato

发明人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Sato

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/017

CPC分类号： B60G17/017 ,  B60G2400/102 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/252 ,  B60G2400/30 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/26 ,  B60G2600/72 ,  B60G2800/20

摘要： An actively controlled suspension system introduces two-way mode operation in controlling suspension. A suspension control system operates in a normal mode for controlling fluid pressure in a hydraulic cylinder disposed between a vehicle body and a suspension member is adjusted depending upon the vehicle driving conditions in order to suppress vehicular attitude change, and a power OFF transition mode for controlling the fluid pressure toward a preset neutral pressure. The hydraulic circuit is constructed to maintain the pressure in the working chamber of the hydraulic cylinder at the neutral pressure while power is not supplied to control system.

公开(公告)号：US5056811A

公开(公告)日：1991-10-15

申请号：US472443

申请日：1990-01-24

申请人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano

发明人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano

IPC分类号： F16F9/50 ,  B60G17/00 ,  B60G17/015 ,  B60G17/018 ,  B60G17/04 ,  B60G23/00

CPC分类号： B60G17/018

摘要： An actively controlled suspension system has two hydraulic systems for generating damping force against the vibration to be transmitted between a vehicle body and a suspension member. One of the hydraulic systems is designed for absorbing relatively high frequency vibration generally input from the suspension member for preventing vibration from the suspension member from being transmitted to the vehicle body. The other hydraulic system is active on relatively low frequency of vibration generally input from the vehicle body upon change of attitude of the vehicle body. The other hydraulic system generates a fluid pressure suppressing the attitude change. A pressure control valve and a fluid pressure source may be incorporated in the second hydraulic system so that they may not be active when aforementioned one of the hydraulic system is active.

摘要翻译： 主动控制的悬挂系统具有两个液压系统，用于产生抵抗在车身和悬架构件之间传递的振动的阻尼力。 液压系统中的一个被设计用于吸收通常从悬挂构件输入的相对高频振动，以防止来自悬挂构件的振动传递到车体。 另一个液压系统在车身姿态变化时通常从车体输入的相对较低的振动频率下起作用。 另一液压系统产生抑制姿态变化的流体压力。 压力控制阀和流体压力源可以结合在第二液压系统中，使得当上述液压系统中的一个有效时它们可能不起作用。

公开(公告)号：US4909534A

公开(公告)日：1990-03-20

申请号：US60909

申请日：1987-06-12

申请人： Naoto Fukushima ,  Hirotsugu Yamaguchi ,  Yohsuke Akatsu ,  Sunao Hano

发明人： Naoto Fukushima ,  Hirotsugu Yamaguchi ,  Yohsuke Akatsu ,  Sunao Hano

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/04 ,  B60G23/00

CPC分类号： B60G17/04 ,  B60G17/016 ,  B60G2400/206 ,  B60G2400/252 ,  B60G2500/10 ,  B60G2500/30 ,  B60G2600/14 ,  B60G2600/26 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/22

摘要： An actively controlled suspension system is provided with a fluid pressure device provided between a vehicle body and a suspension member for suspending the vehicle body on the suspension member. The fluid pressure member is variable at least one of damping characteristics and spring characteristics in linear fashion depending upon relative displacement of the vehicle body and the suspension member in bounding and rebounding directions.

摘要翻译： 主动控制的悬挂系统设置有设置在车身和悬挂构件之间的流体压力装置，用于将车体悬挂在悬架构件上。 流体压力构件根据车身和悬挂构件在边界和回弹方向上的相对位移以线性方式变化阻尼特性和弹簧特性中的至少一个。

公开(公告)号：US4934732A

公开(公告)日：1990-06-19

申请号：US254645

申请日：1988-10-07

申请人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Satoh

发明人： Yukio Fukunaga ,  Naoto Fukushima ,  Yohsuke Akatsu ,  Sunao Hano ,  Masaharu Satoh

IPC分类号： B60G17/015 ,  B60G17/018 ,  B60G17/056 ,  B60G23/00

CPC分类号： B60G17/018

摘要： A suspension control system introduces capability of automatically adjusting sensibility of attitude change depending upon a vehicular speed with maintaining capability of manual adjustment of the sensibility for the vehicular attitude change. The actively controlled suspension system employs a pressure control valve which is operable in response to a control signal and controls fluid pressure in the fluid chamber of a hydraulic cylinder as a replacement of the conventional hydraulic shock absorber. The pressure control valve is associated with a controller which detects bounding and rebounding acceleration and stroke speed in bounding and rebounding motion for detecting vehicular attitude change and deriving a control signal to operate the pressure control valve to suppress attitude change. The controller is response to a vehicle speed indicative parameter for adjusting sensitivity of attitude change and whereby adjusting suspension control characteristics.