公开(公告)号：US11814042B1

公开(公告)日：2023-11-14

申请号：US17117015

申请日：2020-12-09

申请人： Zoox, Inc.

发明人： Johannes Edren ,  Markus Jost ,  Ahditya Melkote ,  Amanda Brown Prescott

IPC分类号： B60W30/09 ,  B60G17/019 ,  G08G1/16

CPC分类号： B60W30/09 ,  B60G17/01941 ,  G08G1/166 ,  B60G2202/154 ,  B60G2202/413

摘要： A vehicle may receive sensor data captured by a sensor, determine that the sensor data represents an object in the environment, and determine a collision probability associated with a collision between the vehicle and the object. Based at least in part on the collision probability, the vehicle may determine one or more mitigating actions to perform prior to, during, and/or after the collision. The mitigating action may be associated with adjusting a hydraulic fluid pressure in at least a portion of a hydraulic fluid system of the vehicle.

公开(公告)号：US09452657B1

公开(公告)日：2016-09-27

申请号：US14978098

申请日：2015-12-22

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Kevin S. Giaier ,  Edmund S. Anderson

IPC分类号： B60G17/019 ,  B60G17/0195 ,  B60G21/055 ,  B60Q1/08 ,  B60Q1/10

CPC分类号： B60G17/01941 ,  B60G17/01908 ,  B60G21/055 ,  B60G2400/252 ,  B60G2400/842 ,  B60G2401/12 ,  B60G2500/30 ,  B60Q1/08 ,  B60Q1/10 ,  B60Q2300/136

摘要： Ride height for use in an adaptive suspension damping system, tiltable headlamp systems, or other systems is determined for first and second wheels which are mounted to first and second suspensions having first and second control arms coupled between the respective wheels and a frame of the vehicle. An anti-roll system is coupled between the control arms. A mechanical height sensor is coupled to the first wheel to directly sense a first height associated with the first wheel. A strain sensor is coupled to the anti-roll system to generate a strain signal in response to a strain in the anti-roll system. A controller converts the strain signal to a second height associated with the second wheel. Thus, ride heights for both wheels on opposite sides of the vehicle are obtained using only one direct height measurement.

摘要翻译： 确定用于自适应悬挂阻尼系统，可倾斜前照灯系统或其他系统的乘坐高度，其被安装到第一和第二轮上，所述第一和第二轮安装在第一和第二悬架上，所述第一和第二悬架具有联接在相应的车轮和车辆的车架之间的第一和第二控制臂 。 控制臂之间连接有防侧倾系统。 机械高度传感器联接到第一轮以直接感测与第一轮相关联的第一高度。 应变传感器耦合到抗卷系统以响应于抗卷系统中的应变而产生应变信号。 控制器将应变信号转换成与第二轮相关联的第二高度。 因此，仅使用一个直接高度测量来获得车辆相对两侧的两个车轮的行驶高度。

公开(公告)号：US20020175594A1

公开(公告)日：2002-11-28

申请号：US10053511

申请日：2002-01-16

申请人： SRI International

发明人： Roy D. Kornbluh ,  Ronald E. Pelrine

IPC分类号： H01L041/09

CPC分类号： H01L41/08 ,  B60G17/01941 ,  B60G17/02 ,  B60G2202/424 ,  B60G2400/60 ,  B60G2401/11 ,  B60G2401/23 ,  B60G2500/20 ,  B60G2500/22 ,  F16F15/005 ,  H01L41/042 ,  H01L41/193 ,  Y10S310/80

摘要： The invention relates to systems that provide variable stiffness and/or variable damping using an electroactive polymer transducer. Systems described herein offer several techniques that provide variable and controlled stiffness and/or damping. A transducer may be implemented using open loop control, thereby providing simple systems that inactively deliver a desired stiffness and/or damping performance. Alternately, closed loop control techniques permit electroactive polymer transducer designs that actively adapt the stiffness and/or damping performance of a system. Further, transducers may be implemented in a device whose stiffness changes with deflection of the polymer.

摘要翻译： 本发明涉及使用电活性聚合物换能器提供可变刚度和/或可变阻尼的系统。 本文所述的系统提供了提供可变和控制刚度和/或阻尼的几种技术。 可以使用开环控制来实现换能器，从而提供不能提供所需刚度和/或阻尼性能的简单系统。 或者，闭环控制技术允许电活性聚合物换能器设计主动地适应系统的刚度和/或阻尼性能。 此外，换能器可以在其刚度随着聚合物的偏转而变化的装置中实现。

公开(公告)号：US5361209A

公开(公告)日：1994-11-01

申请号：US7917

申请日：1993-01-22

申请人： Yasuhiro Tsutsumi

发明人： Yasuhiro Tsutsumi

IPC分类号： B60G17/015 ,  B60G17/019 ,  F16F9/348

CPC分类号： B60G17/01941 ,  F16F9/348 ,  B60G2202/12 ,  B60G2202/24 ,  B60G2204/80 ,  B60G2204/81 ,  B60G2400/204 ,  B60G2400/32 ,  B60G2400/41 ,  B60G2400/60 ,  B60G2400/61 ,  B60G2400/82 ,  B60G2400/821 ,  B60G2400/90 ,  B60G2400/91 ,  B60G2401/10 ,  B60G2500/10 ,  B60G2500/102 ,  B60G2500/104 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/14 ,  B60G2600/184 ,  B60G2800/162 ,  B60G2800/22

摘要： A suspension control system for controlling a suspension having a shock absorber provided for a wheel of a vehicle includes a damping force change rate detector which detects a damping force change rate indicating a rate of change of a damping force of the shock absorber, and a damping coefficient controller which alters the setting of the damping coefficient on the basis of a relationship between the damping force change rate and an adjustment reference value. The system also includes a damping coefficient alteration holding unit which continuously maintains the setting of the damping coefficient at a first level for a holding period after the damping coefficient controller alters the setting of the damping coefficient from a second level to the first level less than the second level, and a road surface condition judgement unit which judges whether or not a road surface on which the vehicle has traveled for the holding period is rough. Further, the system includes a holding period correction unit which elongates the holding period which is to be supplied to the damping coefficient alteration holding unit when the road surface condition judgment unit determines that the road surface is rough.

摘要翻译： 用于控制具有用于车辆的车轮的减震器的悬架的悬架控制系统包括：阻尼力变化率检测器，其检测表示减震器的阻尼力的变化率的阻尼力变化率和阻尼 系数控制器，其基于阻尼力变化率和调整基准值之间的关系来改变阻尼系数的设定。 该系统还包括阻尼系数改变保持单元，该阻尼系数改变保持单元在阻尼系数控制器将阻尼系数的设置从第二水平改变到小于第一水平的第一水平之后，将阻尼系数的设定在第一水平持续保持一段保持期 以及路面状态判断单元，其判断车辆在保持期间行驶的路面是否粗糙。 此外，该系统包括保持周期校正单元，当保持路面状态判断单元判断为路面粗糙时，延长将被提供给阻尼系数变更保持单元的保持期间。

公开(公告)号：US5134566A

公开(公告)日：1992-07-28

申请号：US656726

申请日：1991-02-19

申请人： Yuji Yokoya ,  Yasuhiro Tsutsumi ,  Yutaka Suzuki ,  Yoshimichi Hara ,  Akira Fukami

发明人： Yuji Yokoya ,  Yasuhiro Tsutsumi ,  Yutaka Suzuki ,  Yoshimichi Hara ,  Akira Fukami

IPC分类号： B60G17/015 ,  B60G17/019 ,  F16F9/50

CPC分类号： B60G17/015 ,  B60G17/01941 ,  B60G2202/42 ,  B60G2204/80 ,  B60G2400/202 ,  B60G2400/204 ,  B60G2400/60 ,  B60G2400/82 ,  B60G2401/10 ,  B60G2401/172 ,  B60G2500/10 ,  B60G2600/602 ,  B60G2600/604 ,  B60G2600/70 ,  B60G2600/74 ,  B60G2600/76

摘要： A shock absorber control system having shock absorbers provided respectively between wheels of a vehicle and a body thereof includes road surface condition detecting units provided for the respective shock absorbers, and damping force characteristic alteration units provided for the respective shock absorbers. The shock absorber control system also includes a correction unit for separately generating signals indicative of detection characteristics of the road surface condition detecting units provided for the respective shock absorbers on the basis of road surface condition detection signals generated by the road surface condition detecting units and for separately correcting either reference values used for determining whether or not the road surface is rough by the damping force characteristic alteration units or the road surface condition detection signals on the basis of the detection characteristics of the road surface condition detecting units provided for the respective shock absorbers.

公开(公告)号：US5075855A

公开(公告)日：1991-12-24

申请号：US576076

申请日：1990-09-25

申请人： Fukashi Sugasawa ,  Ken Ito ,  Tohru Takahashi ,  Sadahiro Takahashi ,  Takeshi Fujishiro

发明人： Fukashi Sugasawa ,  Ken Ito ,  Tohru Takahashi ,  Sadahiro Takahashi ,  Takeshi Fujishiro

IPC分类号： B60G17/015 ,  B60G17/0165 ,  B60G17/019 ,  F16F9/46 ,  G01S15/88

CPC分类号： G01S15/88 ,  B60G17/0165 ,  B60G17/019 ,  B60G17/01941 ,  F16F9/467 ,  B60G2202/154 ,  B60G2202/42 ,  B60G2400/102 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/50 ,  B60G2400/60 ,  B60G2400/82 ,  B60G2400/821 ,  B60G2400/91 ,  B60G2401/10 ,  B60G2401/12 ,  B60G2401/176 ,  B60G2401/22 ,  B60G2500/102 ,  B60G2500/22 ,  B60G2600/02 ,  B60G2600/182 ,  B60G2600/184 ,  B60G2600/602 ,  B60G2600/604 ,  B60G2800/916

摘要： A suspension control system for automotive vehicles automatically adjusts the damping strength of variable shock absorbers or other dampers in accordance with road surface conditions as recognized by frequency analysis of a vehicle height or vibration sensor signal. The sensor signal reflects vertical displacement of the vehicle body from the road surface and includes high-frequency components due solely to displacement of the wheels or unsprung mass relative to the road surface and low-frequency components due to displacement of the vehicle body or sprung mass. The sensor signal is filtered into these separate frequency bands, the amplitude of each of which is compared to a corresponding reference level. The results of comparison give an indication of the degree and scale of irregularities in the road surface; specifically, a high-amplitude low-frequency component indicates larger-scale bumps and dips capable of bouncing the vehicle whereas a strong high-frequency component reflects a rough-textured road surface, such as gravel. The comparison information is sent to a suspension system controller which causes actuation of the shock absorbers to a stiffer mode of operation when the low-frequency sensor signal components are relatively strong.

公开(公告)号：US5069476A

公开(公告)日：1991-12-03

申请号：US520185

申请日：1990-05-08

申请人： Yasuhiro Tsutsumi ,  Yuji Yokoya ,  Yoshimichi Hara ,  Eiju Matsunaga ,  Hiroyuki Kawata ,  Akira Fukami ,  Yutaka Suzuki

发明人： Yasuhiro Tsutsumi ,  Yuji Yokoya ,  Yoshimichi Hara ,  Eiju Matsunaga ,  Hiroyuki Kawata ,  Akira Fukami ,  Yutaka Suzuki

IPC分类号： B60G17/015 ,  B60G17/019

CPC分类号： B60G17/01941 ,  B60G2400/204 ,  B60G2400/302 ,  B60G2400/33 ,  B60G2400/40 ,  B60G2400/50 ,  B60G2400/60 ,  B60G2401/10 ,  B60G2500/102 ,  B60G2600/02 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/18 ,  B60G2800/22

摘要： A suspension control system controls suspensions provided for wheels of a vehicle includes a driving condition detecting part for detecting a driving condition of the vehicle, and a determination part for determining whether or not the driving condition detected by the driving condition detecting part coincides with a predetermined driving condition. The suspensions are grouped into a plurality of groups. Also the system includes a control part for separately controlling the suspensions on the basis of the driving condition when the determination part determines that the driving condition does not coincide with the predetermined driving condition and for controlling the suspensions for each of the groups so that the suspensions in an identical group are set to an identical condition when the determination part determines that the driving condition coincides with the predetermined driving condition.

公开(公告)号：US5054809A

公开(公告)日：1991-10-08

申请号：US440215

申请日：1989-11-22

申请人： Fumiyuki Yamaoka ,  Shinobu Kakizaki ,  Shigeru Kikushima

发明人： Fumiyuki Yamaoka ,  Shinobu Kakizaki ,  Shigeru Kikushima

IPC分类号： F16F9/46 ,  B60G17/015 ,  B60G17/018 ,  B60G17/019

CPC分类号： B60G17/018 ,  B60G17/01941 ,  B60G2202/24 ,  B60G2400/5182 ,  B60G2401/10 ,  B60G2500/10 ,  B60G2600/14

摘要： A variable damping characteristics shock absorber includes a piezoelectric unit which serves as a sensor for detecting piston stroke and an actuator for adjusting stiffness of a flow restriction valve and thus for adjusting the damping characteristics of the shock absorber. The shock absorber includes a pair of flow restriction valves, in which one of valve is active in response to a piston bounding stroke for generating damping force by restricting the fluid flow and the other is active in response to a piston rebounding stroke for generating a damping force by restricting fluid flow. The piezoelectric unit is disposed between two valves in such a manner that it may monitor piston strokes both in the bounding and rebounding stroke directions and adjust stiffness of both of the flow restriction valves.

摘要翻译： 可变阻尼特性减震器包括用作检测活塞冲程的传感器的压电单元和用于调节流量限制阀的刚度并因此用于调节减震器的阻尼特性的致动器。 减震器包括一对流量限制阀，其中阀中的一个响应于活塞行程起作用，通过限制流体流而产生阻尼力，另一个响应于活塞回弹行程起作用以产生阻尼 限制流体流动的力。 压电单元以这样的方式设置在两个阀之间，使得它可以监视行程方向上的活塞冲程和调节两个流量限制阀的刚度。

公开(公告)号：US5013955A

公开(公告)日：1991-05-07

申请号：US535194

申请日：1990-06-07

申请人： Yoshimichi Hara ,  Eiju Matsunaga ,  Hiroyuki Kawata ,  Akira Hukami ,  Yutaka Suzuki ,  Makoto Shiozaki ,  Yuji Yokoya ,  Yasuhiro Tsutsumi

发明人： Yoshimichi Hara ,  Eiju Matsunaga ,  Hiroyuki Kawata ,  Akira Hukami ,  Yutaka Suzuki ,  Makoto Shiozaki ,  Yuji Yokoya ,  Yasuhiro Tsutsumi

IPC分类号： B60G17/015 ,  B60G17/0185 ,  B60G17/019 ,  F02D41/20 ,  H01L41/04

CPC分类号： H01L41/042 ,  B60G17/0185 ,  B60G17/01941 ,  B60G2202/24 ,  B60G2202/422 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/304 ,  B60G2400/41 ,  B60G2400/518 ,  B60G2401/10 ,  B60G2401/14 ,  B60G2500/10 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/044 ,  B60G2600/07 ,  B60G2600/08 ,  B60G2600/60 ,  B60G2600/602 ,  B60G2600/70 ,  F02D41/2096

摘要： A drive system of a piezo-type actuator for use in a motor vehicle, which piezo-type actuator is constructed with a piezoelectric device which is expandable and contractible in accordance with application of a voltage thereto. The drive system includes a voltage-increasing section for increasing an output voltage of a power source mounted on the motor vehicle so as to develop a drive voltage for the piezo-type actuator and a voltage-application section for applying to the piezoelectric device of the piezo-type actuator the drive voltage. Also included in the drive system is an abnormality detection section which is arranged so as to an abnormality of the drive voltage developed by the voltage-increasing section. A safety controller is responsive to an abnormality signal from the abnormality detection section for prohibiting the application of the drive voltage to the piezoelectric device thereof and further discharging charges accumulated in the piezoelectric device thereof when the abnormality detection section detects the abnormality of the developed drive voltage. With this arrangement, it is possible to prevent troubles due to the abnormality of the drive voltage to be applied to the piezoelectric device of the piezo-type actuator.

公开(公告)号：US11897306B2

公开(公告)日：2024-02-13

申请号：US17453161

申请日：2021-11-01

申请人： DANA ITALIA S.R.L.

发明人： Daniele Tonini ,  Federico Bavaresco

IPC分类号： B60G3/20 ,  B60G17/016 ,  B60G17/019

CPC分类号： B60G3/20 ,  B60G17/0162 ,  B60G17/01941

摘要： A vehicle suspension system including a vehicle body portion is provided herein. The vehicle suspension system further includes a first suspension lever which is pivotally mounted with respect to a first pivot axis on a first region of the vehicle body portion and pivotally connects a wheel hub or a steering knuckle to the vehicle body portion. The vehicle suspension system further includes a rotation sensor with a first sensor portion of the sensor is fixedly connected to the vehicle body portion and a second sensor portion is fixedly connected to the first suspension lever, where the first and second sensor portions are rotatable with respect to each other about a sensor rotation axis, and the rotation angle between the first and second sensor portions with respect to each other indicates a pivot angle of the first suspension lever.