公开(公告)号：US5024459A

公开(公告)日：1991-06-18

申请号：US457957

申请日：1989-12-27

申请人： Kouichi Kokubo ,  Toshiaki Hamada ,  Shinichi Tagawa ,  Nobuyasu Suzumura ,  Shuuichi Buma ,  Toshio Aburaya ,  Toshio Onuma ,  Kunihito Sato ,  Takashi Yonekawa ,  Masaki Kawanishi ,  Hiroyuki Ikemoto ,  Kaoru Ohashi

发明人： Kouichi Kokubo ,  Toshiaki Hamada ,  Shinichi Tagawa ,  Nobuyasu Suzumura ,  Shuuichi Buma ,  Toshio Aburaya ,  Toshio Onuma ,  Kunihito Sato ,  Takashi Yonekawa ,  Masaki Kawanishi ,  Hiroyuki Ikemoto ,  Kaoru Ohashi

IPC分类号： B60G17/016 ,  B60G17/017

CPC分类号： B60G17/017 ,  B60G17/016 ,  B60G2202/15 ,  B60G2204/80 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/20 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/30 ,  B60G2400/38 ,  B60G2400/41 ,  B60G2400/50 ,  B60G2400/51 ,  B60G2400/73 ,  B60G2500/10 ,  B60G2500/20 ,  B60G2500/30 ,  B60G2600/04 ,  B60G2600/08 ,  B60G2600/12 ,  B60G2600/14 ,  B60G2600/16 ,  B60G2600/20 ,  B60G2600/602 ,  B60G2600/68 ,  B60G2600/70 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/22 ,  B60G2800/244 ,  B60G2800/246

摘要： A suspension pressure control system applies a pressure which is proportional to a current level supplied to a solenoid of a pressure control valve to a shock absorber associated with a suspension from the valve. When a pressure in a high pressure line which feeds a high pressure to the pressure control valve falls (rises), the pressure applied to the suspension is decreased (increased). Accordingly, the pressure in the high pressure line is detected by a sensor, and if it is low (high), the current level of the pressure control valve is corrected to a high value (low value). In order to prevent an abnormal pressure rise in the suspension which may be caused by an excessive pressure rise in the high pressure line during an idling operation of an engine, a correction which responds to the pressure of the high pressure line is chosen large when a vehicle speed is equal to zero or very low. In order to prevent an abnormality from occurring in the correction of the pressure which is attributable to an errorneous detected value during a failure of operation of sensor, such detected value is determined to be faulty, and in the event a fault occurred, the correction is modified to a given volume (0) which is allocated to a standard pressure in the high pressure line.

公开(公告)号：US4973080A

公开(公告)日：1990-11-27

申请号：US444761

申请日：1989-12-01

申请人： Hiroyuki Ikemoto ,  Shuuichi Buma ,  Kaoru Ohashi ,  Toshio Aburaya ,  Takashi Yonekawa ,  Toshio Oonuma ,  Kunihito Sato ,  Masaki Kawanishi ,  Toshiaki Hamada ,  Kouichi Kokubo ,  Shinichi Tagawa

发明人： Hiroyuki Ikemoto ,  Shuuichi Buma ,  Kaoru Ohashi ,  Toshio Aburaya ,  Takashi Yonekawa ,  Toshio Oonuma ,  Kunihito Sato ,  Masaki Kawanishi ,  Toshiaki Hamada ,  Kouichi Kokubo ,  Shinichi Tagawa

IPC分类号： B60G17/017

CPC分类号： B60G17/017 ,  B60G2202/15 ,  B60G2204/80 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/30 ,  B60G2400/38 ,  B60G2400/41 ,  B60G2400/50 ,  B60G2400/51 ,  B60G2400/73 ,  B60G2400/90 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/08 ,  B60G2600/20 ,  B60G2600/26 ,  B60G2600/60 ,  B60G2600/70 ,  B60G2600/85 ,  B60G2800/012 ,  B60G2800/014

摘要： In a hydraulic suspension system, a plurality of actuators having working fluid chambers are provided. Each actuator is adapted to increase and decrease vehicle height as the results of the supply and the discharge of working fluid to and from its working fluid chamber, respectively. Working fluid supply passages supply working fluid at supply pressure to the working fluid chambers and working fluid discharge passages discharge working fluid from the working fluid chambers. Cut-off valves and pressure control devices are provided in the supply passages and the discharge passages. Each cut-off valve is adapted to remain in its closed position whenever the supply pressure is not more than a predetermined value. Each pressure control device is adapted to control the supply of the working fluid to and the discharge from the associated working fluid chamber to adjust the pressure within the chamber. The system further comprises devices for detecting the pressures within the working fluid chambers and a device for determining the supply pressure. The pressure control devices are controlled so that their controlling pressures may substantially be equal to the pressures within the associated working fluid chambers determined by the pressure determining devices at least until the cut-off valves are opened.

公开(公告)号：US5067743A

公开(公告)日：1991-11-26

申请号：US572621

申请日：1990-08-27

申请人： Kouichi Kokubo ,  Shinichi Tagawa ,  Masaki Kawanishi ,  Kunihito Sato ,  Shuuichi Buma ,  Takashi Yonekawa ,  Toshio Aburaya

发明人： Kouichi Kokubo ,  Shinichi Tagawa ,  Masaki Kawanishi ,  Kunihito Sato ,  Shuuichi Buma ,  Takashi Yonekawa ,  Toshio Aburaya

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

CPC分类号： B60G17/016 ,  B60G2202/154 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/33 ,  B60G2400/34 ,  B60G2400/44 ,  B60G2400/51 ,  B60G2400/512 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/14 ,  B60G2600/16 ,  B60G2600/26 ,  B60G2600/604 ,  B60G2600/70 ,  B60G2600/74 ,  B60G2600/76 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/0192 ,  B60G2800/0194 ,  B60G2800/18 ,  B60G2800/22

摘要： A suspension pressure control system applies a pressure which is proportional to a current level supplied to a solenoid of a pressure control valve to a shock absorber associated with a suspension from the valve through a cut valve, which cuts off a fluid path from the pressure control valve to the shock absorber when a line pressure is below a predetermined value and communicates the fluid path when the line pressure exceeds the predetermined value. An electronic controller controls the current level to maintain an attitude of a vehicle substantially constant in spite of any change of longitudinal and lateral acceleration, which are detected by acceleration sensors. In order to prevent an abrupt or abnormal change of the pressure of the shock absorber at an initiation of the pressure control of the controller when the vehicle is parking on a slope, the controller initiates the pressure control before the cut valve communicates the fluid path.

公开(公告)号：US5069475A

公开(公告)日：1991-12-03

申请号：US575553

申请日：1990-08-30

申请人： Takashi Yonekawa ,  Shuuichi Buma ,  Toshio Aburaya ,  Kunihito Sato ,  Masaki Kawanishi ,  Toshiaki Hamada ,  Shinichi Tagawa

发明人： Takashi Yonekawa ,  Shuuichi Buma ,  Toshio Aburaya ,  Kunihito Sato ,  Masaki Kawanishi ,  Toshiaki Hamada ,  Shinichi Tagawa

IPC分类号： B60G17/015 ,  B60G17/016 ,  B62D7/14

CPC分类号： B60G17/0163 ,  B60G2202/154 ,  B60G2202/42 ,  B60G2400/104 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/30 ,  B60G2400/38 ,  B60G2400/40 ,  B60G2400/41 ,  B60G2400/51 ,  B60G2400/71 ,  B60G2500/30 ,  B60G2500/40 ,  B60G2600/02 ,  B60G2600/04 ,  B60G2600/14 ,  B60G2600/20 ,  B60G2600/26 ,  B60G2600/70 ,  B60G2600/74 ,  B60G2600/76 ,  B60G2600/90 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/24

摘要： A fluid pressure type active suspension in a vehicle such as an automobile having a four wheel steering means, including a fluid pressure type actuator provided between the vehicle body and each wheel, working fluid supply and exhaust means for supplying and exhausting a working fluid to and from each actuator, vehicle height detection means for detecting vehicle height of a portion of the vehicle body corresponding to each wheel relative to the wheel, and a control means for controlling the working fluid supply and exhaust means according to control parameters including a vehicle height detected by the vehicle height detection means, wherein the control means is adapted to modify the control of the working fluid supply and exhaust means in accordance with whether a front to rear wheel steering angle ratio of the four wheel steering means is in a same phase region or an opposite phase region so that the vehicle height is controlled to be higher or lower or the rolling control is suppressed less or more according to whether the front to rear wheel steering angle ratio is in the opposite phase region or in the same phase region, respectively.

公开(公告)号：US5384705A

公开(公告)日：1995-01-24

申请号：US804754

申请日：1991-12-11

申请人： Shoji Inagaki ,  Shinichi Tagawa

发明人： Shoji Inagaki ,  Shinichi Tagawa

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/0165 ,  B60G17/0195 ,  B60G17/01

CPC分类号： B60G17/0195 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2400/44 ,  B60G2600/14 ,  B60G2800/012 ,  B60G2800/014 ,  B60G2800/24

摘要： In order to prevent an inverse rolling or an unnatural rolling of a vehicle body during a turning of the vehicle on a low friction road, in an active suspension having an actuator adapted to increase or decrease vehicle height at the corresponding portion so that the rolling of the vehicle body is suppressed by a control of the actuator carried out in response to a control amount based upon an actual transverse acceleration of the vehicle body and a control amount based upon an estimated transverse acceleration deduced from a steering angle and vehicle speed, the control amount based upon the estimated transverse acceleration is reduced relative to the control amount based upon the actual transverse acceleration when a discrepancy between the estimated transverse acceleration and the actual transverse acceleration increases beyond a predetermined limit of relationship.

摘要翻译： 为了防止在车辆在低摩擦道路上的转弯期间车身的倒车或不自然的滚动，在具有致动器的主动悬架中，该致动器适于增加或减少相应部分处的车辆高度， 通过响应于基于车身的实际横向加速度的控制量执行的致动器的控制以及基于从转向角和车辆速度推定的估计横向加速度的控制量来抑制车体，该控制 当估计的横向加速度和实际横向加速度之间的差异超过预定的关系极限时，基于估计横向加速度的量相对于基于实际横向加速度的控制量减小。

公开(公告)号：US5457632A

公开(公告)日：1995-10-10

申请号：US184133

申请日：1994-01-19

申请人： Shinichi Tagawa ,  Hiroshi Nakashima ,  Yasuo Uehara ,  Hideo Inoue

发明人： Shinichi Tagawa ,  Hiroshi Nakashima ,  Yasuo Uehara ,  Hideo Inoue

IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D6/04 ,  B62D7/15 ,  B62D101/00 ,  B62D105/00 ,  B62D113/00 ,  B62D137/00

CPC分类号： B62D6/04 ,  B62D7/159 ,  B60T2210/22

摘要： A system for controlling a steering angle of a vehicle, such as a steering angle of a rear steering wheel, the system having a yaw rate sensor for detecting a yaw rate of the vehicle, an actuator electrically controlled to change the steering angle of the vehicle, and a controller for controlling the actuator to control the steering angle on the basis of an input which includes at least a component derived from the detected yaw rate. The controller includes a detector for detecting an abnormality of a value of the yaw rate detected by the yaw rate sensor, and a limiter for limiting an amount of change in the steering angle to within a predetermined tolerable range when the abnormality is detected.

摘要翻译： 一种用于控制车辆的转向角的系统，例如后方向盘的转向角，具有用于检测车辆的偏航率的偏航率传感器的系统，电控制以改变车辆转向角的致动器 以及控制器，用于控制致动器，以基于至少包括从检测到的横摆率引起的分量的输入来控制转向角。 控制器包括检测器，用于检测由横摆率传感器检测到的横摆率的值的异常;以及限制器，用于当检测到异常时将转向角的变化量限制在预定的可容许范围内。

公开(公告)号：US07222923B2

公开(公告)日：2007-05-29

申请号：US10911587

申请日：2004-08-05

申请人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

发明人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

IPC分类号： B60T8/32

CPC分类号： B60T8/172 ,  B60T2250/04

摘要： In a case where one of a left and right pair of drive wheels is a non-controlled wheel to which braking force of a vehicle behavior control is not applied, and the other of the drive wheels is a controlled wheel to which braking force is applied, a detected vehicle wheel speed for the non-controlled wheel is corrected to a smaller value in accordance with increase in the roll angle, and increase in the braking force of the controlled wheel when a roll angle of a vehicle body is larger than a threshold value. In a vehicle behavior control, when lateral G acts upon the vehicle during turning, braking force is applied to the controlled wheel that is at the outside of the turn. This braking force application causes driving force of the controlled wheel to be partially transferred to the non-corrected wheel that is at the inside of the turn, whereby the vehicle wheel speed of the non-corrected wheel is increased. Accordingly, in the present invention, correction calculation is performed.

摘要翻译： 在左右一对驱动轮中的一个是不施加车辆行为控制的制动力的非控制轮的情况下，另一方的驱动轮是施加制动力的受控轮 根据滚动角度的增加，将非受控轮的检测车轮速度校正为较小的值，并且当车身的侧倾角大于阈值时，控制轮的制动力的增加 值。 在车辆行为控制中，当横向G在转弯期间作用在车辆上时，制动力被施加到处于转弯外部的受控轮上。 该制动力施加使得受控轮的驱动力被部分地传递到处于转弯内部的未校正车轮，由此增加了未校正车轮的车轮速度。 因此，在本发明中，进行校正计算。

公开(公告)号：US07409278B2

公开(公告)日：2008-08-05

申请号：US10878566

申请日：2004-06-29

申请人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

发明人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

IPC分类号： G06F19/00

CPC分类号： B60T8/175 ,  B60T2230/03 ,  B60W2720/18

摘要： A road surface friction coefficient μ is calculated based on a detected lateral acceleration and a front-rear acceleration, and a roll angle is calculated using a roll rate. Further, a maximum engine torque value that can be applied to a drive wheel without causing slipping thereof is calculated based on the road surface friction coefficient μ and a gear ratio. A torque transmission rate that indicates a reduction rate for engine output is set so as to reduce in accordance with a roll angle, and a target engine torque value is calculated by correcting the maximum engine torque value using the torque transmission rate. Accordingly, adjustment is executed such that the engine output is made smaller as the roll angle increases. Thus, abrupt changes in vehicle behavior are not caused by sudden starting of control, and it is possible to inhibit drive feeling from deteriorating.

摘要翻译： 基于检测到的横向加速度和前后加速度计算路面摩擦系数μ，并且使用滚转速率来计算侧倾角。 此外，基于路面摩擦系数μ和齿轮比计算可以施加到驱动轮而不引起滑动的最大发动机扭矩值。 将发动机输出的减速率的转矩传递率设定为根据滚动角度而减小，并且通过使用转矩传递速率来校正最大发动机转矩值来计算目标发动机转矩值。 因此，执行调整，使得当侧倾角增加时使发动机输出变小。 因此，突然开始控制不会引起车辆行为的突然变化，并且可以抑制驾驶感觉恶化。

公开(公告)号：US20050046274A1

公开(公告)日：2005-03-03

申请号：US10911587

申请日：2004-08-05

申请人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

发明人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

IPC分类号： B60R16/02 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/24 ,  B60T8/58 ,  B60T8/60 ,  B60T8/66

CPC分类号： B60T8/172 ,  B60T2250/04

摘要： In a case where one of a left and right pair of drive wheels is a non-controlled wheel to which braking force of a vehicle behavior control is not applied, and the other of the drive wheels is a controlled wheel to which braking force is applied, a detected vehicle wheel speed for the non-controlled wheel is corrected to a smaller value in accordance with increase in the roll angle, and increase in the braking force of the controlled wheel when a roll angle of a vehicle body is larger than a threshold value. In a vehicle behavior control, when lateral G acts upon the vehicle during turning, braking force is applied to the controlled wheel that is at the outside of the turn. This braking force application causes driving force of the controlled wheel to be partially transferred to the non-corrected wheel that is at the inside of the turn, whereby the vehicle wheel speed of the non-corrected wheel is increased. Accordingly, in the present invention, correction calculation is performed.

摘要翻译： 在左右一对驱动轮中的一个是不施加车辆行为控制的制动力的非控制轮的情况下，另一方的驱动轮是施加制动力的受控轮 根据滚动角度的增加，将非受控轮的检测车轮速度校正为较小的值，并且当车身的侧倾角大于阈值时，控制轮的制动力的增加 值。 在车辆行为控制中，当横向G在转弯期间作用在车辆上时，制动力被施加到处于转弯外部的受控轮上。 该制动力施加使得受控轮的驱动力被部分地传递到处于转弯内部的未校正车轮，由此增加了未校正车轮的车轮速度。 因此，在本发明中，进行校正计算。

公开(公告)号：US20050015191A1

公开(公告)日：2005-01-20

申请号：US10878566

申请日：2004-06-29

申请人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

发明人： Masaki Banno ,  Hiroshi Matsuoka ,  Shinichi Tagawa

IPC分类号： B60W10/04 ,  B60K28/14 ,  B60R16/02 ,  B60T8/175 ,  B60W10/06 ,  B60W10/10 ,  B60W10/11 ,  B60W30/04 ,  B60W40/068 ,  B62D37/00 ,  F02D29/00 ,  F02D29/02 ,  G06F19/00

CPC分类号： B60T8/175 ,  B60T2230/03 ,  B60W2720/18

摘要： A road surface friction coefficient μ is calculated based on a detected lateral acceleration and a front-rear acceleration, and a roll angle is calculated using a roll rate. Further, a maximum engine torque value that can be applied to a drive wheel without causing slipping thereof is calculated based on the road surface friction coefficient μ and a gear ratio. A torque transmission rate that indicates a reduction rate for engine output is set so as to reduce in accordance with a roll angle, and a target engine torque value is calculated by correcting the maximum engine torque value using the torque transmission rate. Accordingly, adjustment is executed such that the engine output is made smaller as the roll angle increases. Thus, abrupt changes in vehicle behavior are not caused by sudden starting of control, and it is possible to inhibit drive feeling from deteriorating.

摘要翻译： 基于检测到的横向加速度和前后加速度计算路面摩擦系数μ，并且使用滚转速率来计算侧倾角。 此外，基于路面摩擦系数μ和齿轮比计算可以施加到驱动轮而不引起滑动的最大发动机扭矩值。 将发动机输出的减速率的转矩传递率设定为根据滚动角度而减小，并且通过使用转矩传递速率来校正最大发动机转矩值来计算目标发动机转矩值。 因此，执行调整，使得当侧倾角增加时使发动机输出变小。 因此，突然开始控制不会引起车辆行为的突然变化，并且可以抑制驾驶感觉恶化。