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1. 发明专利

JPH08156561A SUSPENSION CONTROL DEVICE 失效
公开(公告)号：JPH08156561A
公开(公告)日：1996-06-18
申请号：JP33058494
申请日：1994-12-06
申请人： TOYOTA MOTOR CORP , AISIN SEIKI
发明人： SHONO SHOICHI , TABATA MASAAKI , HAMADA TOSHIAKI , TAGAWA SHINICHI , KOBAYASHI HIDEYUKI , HAYASHI KENJI
IPC分类号： B60G17/015
摘要： PURPOSE: To relieve a sense of incompatibility of an occupant through an improvement in control characteristics by arranging a means which supplies/ discharges fluid to/from an actuator interposed between an upper member and a lower member of a spring of a vehicle and controls damping force according to a traveling condition and corrects its control quantity according to the magnitude of the damping force. CONSTITUTION: Target damping force or actual condition damping force CT of an actuator 36 by final target damping force control is increased, and when responsiveness and generating force of the actuator 36 are enhanced, control target pressure Puj of a pressure control valve 22 is reduced through reductive correction of an active control gain. Therefore, excessive control to the actuator 36 is relieved. On the other hand, when these are reduced, the control target pressure Puj of the pressure control valve 22 is increased through increasing correction of the active control gain. Therefore, oil supply to the actuator 36 through the pressure control valve 22 is promoted, and a control delay caused when the responsiveness and the generating force of the actuator 36 are reduced is improved.

2. 发明专利

JPH07233833A HYDROPNEUMATIC CYLINDER 失效
公开(公告)号：JPH07233833A
公开(公告)日：1995-09-05
申请号：JP2275994
申请日：1994-02-21
申请人： TOYOTA MOTOR CORP , AISIN SEIKI
发明人： SANO KATSUYUKI , YASUIKE OSAMU , KATO KIMITOSHI , HAYASHI KENJI , FURUKAWA TAMOTSU , TERADA HIROYUKI , KOBAYASHI HIDEYUKI
IPC分类号： B60G17/015 , B60G13/06 , B60K17/08 , F16F9/06 , F16F9/08 , F16F9/50
摘要： PURPOSE:To permit the car height adjustment by sending the working fluid on the low pressure side, under pressure to the high pressure side by the rebound operation of a wheel. CONSTITUTION:A hydropneumatic cylinder 1 consists of a cylinder body 2, inside cylinder 3, piston 4, hollow piston rod 5, hollow pump rod 6, pump part 7, and a communication mechanism 8. The pump part 7 has a pump chamber 7a into which the working fluid in a low pressure chamber 22 is sucked by the rebound operation of a wheel where the piston 4 shifts in the compression direction, and discharges the working fluid which is sucked into the pump chamber 7a by the rebound operation of the wheel in which the piston 4 shifts in the extension, into a high pressure working fluid chamber 14 as high pressure chamber.

3. 发明专利

JP2012162187A Rear wheel steering device for vehicle 有权
标题翻译：车辆后轮转向装置
公开(公告)号：JP2012162187A
公开(公告)日：2012-08-30
申请号：JP2011024626
申请日：2011-02-08
申请人： Aisin Seiki Co Ltd , Toyota Motor Corp , アイシン精機株式会社 , トヨタ自動車株式会社
发明人： FUJINORI YOICHI , KAGEYAMA HIROMITSU , TANAKA HAJIME , HAYASHI KENJI , NISHIMURA KOICHI , NAGATA KENJIRO , YAMAGUCHI NAOKI , TANEDA AKICHIKA
IPC分类号： B62D7/14 , F16F15/08
CPC分类号： B62D3/12 , B62D3/06 , B62D5/0427 , B62D7/1581
摘要： PROBLEM TO BE SOLVED: To prevent allophone due to a gap of a rod radial direction from being generated in a rear wheel steering device for a vehicle, and to reduce abrasion of components.SOLUTION: The rear wheel steering device for a vehicle includes: a housing (10a, 10b) mounted to a vehicle body; a rod 21 which is held not to be rotated to the housing and to be movable in a shaft direction and which is connected to right and left rear wheels of the vehicle on both ends thereof; and a conversion mechanism 40 which is disposed between the rod and the housing to convert a rotational driving force of a rotational driving means into a shaft direction driving force of the rod 21. On both right and left ends of the housing (10a, 10b), there are disposed cylindrical bushes 51, 52 which are slid to be engaged with the outer periphery of the rod 21 to support the rod 21 in such a manner that the same is moved in a shaft direction, and which have such a configuration that: the rod support rigidity of one bush 51 is set to be lower than that of the other bush 52; an elastic body 51b is elastically changed in the rod radial direction in the bush 51; and the rod 21 is tilted to an inner periphery protrusion 52a in the other bush 52.
摘要翻译：要解决的问题：为了防止在车辆的后轮转向装置中产生由于杆径向的间隙引起的异音，并且减少了部件的磨损。车辆的后轮转向装置包括：安装在车体上的壳体（10a，10b）杆21，其被保持为不旋转到壳体并且可以在轴向方向上移动并且在其两端连接到车辆的左右后轮; 以及转换机构40，其设置在杆和壳体之间，以将旋转驱动装置的旋转驱动力转换成杆21的轴向驱动力。在壳体（10a，10b）的左右两端，设有圆筒状衬套51,52，该衬套被滑动以与杆21的外周接合，以支撑杆21，使杆21沿轴向移动，并且具有如下结构：一个衬套51的杆支撑刚度被设定为低于另一个衬套52的杆支撑刚度; 弹性体51b在衬套51中沿杆的径向方向弹性变化; 并且杆21向另一个衬套52内的内周突起52a倾斜。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JPH02182527A FLUID PRESSURE TYPE SUSPENSION 失效
公开(公告)号：JPH02182527A
公开(公告)日：1990-07-17
申请号：JP33555488
申请日：1988-12-31
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV , AISIN SEIKI
发明人： ONUMA TOSHIO , TAKEMA SHUICHI , YONEKAWA TAKASHI , HATTORI KATSUHIKO , KOMAZAWA OSAMU , ISOTANI SHIGETAKA , HAYASHI KENJI
IPC分类号： B60G17/04 , B60G17/015
摘要： PURPOSE:To make it possible to effectively recover the energy possessed by high pressure working fluid by so constructing to open a relief means and to guide the working fluid to a supply passage when the pressure inside a connecting passage leading to an actuator in a suspension exceeds a specified value. CONSTITUTION:An actuator 58 in a suspension is connected between a suspension arm and a car body, and a working fluid chamber 62 formed by a piston 64 is connected to a pump 14 through a connecting passage 54, a pressure control valve 18, a working fluid supply passage 167, etc. It is also connected to an accumulator 24 through a throttle 74. In this case, the connecting passage 54 and the working fluid supply passage 16 are mutually communicated and connected with a return passage 78, and a relief valve 80 is installed halfway of the return passage 78. The relief valve 80 is set to be opened when the pressure inside the connecting passage 54 exceeds a specified set pressure. With the opening of the valve, part of the working fluid in the connecting passage 54 is introduced into the working fluid supply passage 16.

5. 发明专利

JP2010188857A Electric vehicular steering device 审中-公开
标题翻译：电动车辆转向装置
公开(公告)号：JP2010188857A
公开(公告)日：2010-09-02
申请号：JP2009035125
申请日：2009-02-18
申请人： Aisin Seiki Co Ltd , Toyota Motor Corp , アイシン精機株式会社 , トヨタ自動車株式会社
发明人： HAYASHI KENJI , KAGEYAMA HIROMITSU , MORINAGA MASAYA , NAGATA KENJIRO , TANEDA AKICHIKA
IPC分类号： B62D3/12 , B62D5/04 , F16C17/02 , F16C33/04
摘要： PROBLEM TO BE SOLVED: To surely eliminate play at an engagement part in a screw mechanism without generating excessive friction force in a steering shaft in an electric vehicular steering device. SOLUTION: The electric vehicular steering device includes a hollow rotary shaft 11 for a motor 10, the steering shaft 20 extending in the vehicle width direction, a screw mechanism 30 for converting rotation of the hollow rotary shaft 11 to transmit it into axial movement of the steering shaft 20, and a pair of right and left tie rods 21L, 21R connected to each right and left ends of the steering shaft 20. The respective tie rods 21L, 21R are arranged so as to incline by a predetermined amount with respect to the steering shaft 20 when a vehicle is in a state of near to the standard height and in a state of near to a state of straight advance. A pressing mechanism 60 is arranged between the steering shaft 20 and a housing 50, the pressing mechanism 60 pressing the steering shaft 20 in the direction same to the action direction of a load F1 applied by the respective tie rods 21L, 21R in the radial direction of the steering shaft 20. The pressing mechanism 60 includes an engaging member (shaft guide 61) slidably engaging with the steering shaft 20. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了确保在电动车辆转向装置的转向轴中不产生过大摩擦力的螺钉机构中的接合部的消除。解决方案：电动车辆转向装置包括用于电动机10的中空旋转轴11，转向轴20沿车宽方向延伸;螺旋机构30，用于转换中空旋转轴11的旋转以将其传递到轴向转向轴20的移动，以及连接到转向轴20的左右两端的一对左右的拉杆21L，21R。各拉杆21L，21R配置成与当车辆处于接近标准高度的状态并且处于直接进给状态的状态时，相对于转向轴20。在转向轴20和壳体50之间配置有按压机构60，按压机构60沿着与各个拉杆21L，21R在径向方向施加的负载F1的作用方向相同的方向按压转向轴20 压力机构60包括与转向轴20可滑动地接合的接合构件（轴引导件61）。（C）2010，JPO＆INPIT

6. 发明专利

JPH07145845A HYDRONEUMATIC CYLINDER 失效
公开(公告)号：JPH07145845A
公开(公告)日：1995-06-06
申请号：JP32133393
申请日：1993-11-25
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , TERADA HIROYUKI , SANO KATSUYUKI
IPC分类号： B60G15/12 , F16F9/50
摘要： PURPOSE:To prevent worsening of a riding sensation and driving stability by a method wherein a damping force is compensated according to the change of a car weight and damping characteristics responding to a car weight are realized. CONSTITUTION:In a hydraulic pneumatic cylinder, the opening pressures of damping force generating valves 61 and 71 formed to a piston 31 and a base valve member 7, respectively, are regulated by opening pressure regulating means 62 and 72 by utilizing the pressure changes of a working chamber 21 and a high pressure chamber 52 responding to the change of a car weight. Thus, a damping force is effectively compensated according to the change of a car weight to realize optimum damping characteristics responding to the change of the car weight, and worsening of a riding sensation and drive stability is prevented from occurring. A coil spring 65 and a leaf spring 64 are disposed above and below a piston 31 and a base valve member 7, and a damping force is regulatable both on the expansion side and the contraction side of an absorber. Thus, a variable range in a wide range is realized and an ideal damping force is generated.

7. 发明专利

JPH08261351A PRESSURE CONTROL DEVICE 失效
公开(公告)号：JPH08261351A
公开(公告)日：1996-10-11
申请号：JP8881595
申请日：1995-03-21
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , TABATA MASAAKI , SHONO SHOICHI
IPC分类号： F16K31/40
摘要： PURPOSE: To dissolve a problem on limitation of a space by a method wherein there is no need for a discharge pipe through which a plunger chamber and a reservoir are intercoupled and which discharges gathering air bubbles. CONSTITUTION: In a pressure control device wherein by driving a plunger 3, located in a plunger chamber 2, by a solenoid 1 and by controlling the opening of a needle 4 formed integrally with the plunger 3, the feed and discharge of working liquid, sucked through a reservoir R to and from actuators A1 and A2 are controlled, the pressure control device comprises a single cylinder 20 wherein two plungers 21 and 22 having two plunger chambers 21 and 22 located therein are continued in series. Working liquid is fed from one plunger 31 side to the other plunger 32 side and the other plunger 32 side is communicated with a reservoir R through a communication passage 52.

8. 发明专利

JPH07180779A CUT VALVE 失效
公开(公告)号：JPH07180779A
公开(公告)日：1995-07-18
申请号：JP32849893
申请日：1993-12-24
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , TABATA MASAAKI
IPC分类号： B60G17/056 , F16K15/04 , F16K15/18
摘要： PURPOSE:To obtain good flow passage shut-out function with a simple structure by enlarging a pressure receiving area on which a slider receives pilot pressure more than a pressure receiving area on which a valve body at the time of closing receives pressure of an output port, and also enlarging the area thereof than a pressure receiving area by which a projection receives pressure of an input port. CONSTITUTION:A cut valve is interposed in a flow passage which is positioned between the shock absorber of a suspension on a vehicle and a fluid control valve. In a cut valve which is closed when supply of pilot pressure is stopped, a ball valve body 78b is housed in space which is communicated with an output port 75 inside a valve base body provided with an input port 73, an output port 75, and a control port 72. This ball valve body 78b is spring energized in its closing direction, and a projection 78a which is driven by a slider 78c which receives, on its back face, the pressure of the control port 72 is fit in the opening 77b of a valve seat 77a. An effective pressure receiving area which receives pilot pressure of the slider 78c is enlarged more than a pressure receiving area on which a valve body 78b receives output pressure, and larger than a pressure receiving area on which the projection 78a receives input pressure.

9. 发明专利

JPH07139574A CYLINDER FOR HYDRO-PNEUMATIC SUSPENSION 失效
公开(公告)号：JPH07139574A
公开(公告)日：1995-05-30
申请号：JP31407893
申请日：1993-11-19
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , FURUKAWA TAMOTSU , YASUIKE OSAMU , TAKEMA SHUICHI , KIMURA YUKIHIDE
IPC分类号： B60G15/12 , B60G17/04 , F16F9/32 , F16J3/02
摘要： PURPOSE:To improve durability of a diaphragm and prevent occurrence of gas permeability in a gas chamber by providing the diaphragm composed of laminated resin films of gas impermeability and forming a volumetric fluctuation part whose shape or position is varied. CONSTITUTION:A diaphragm 53 is composed of a resin laminated film having gas-impermeable property, and engaged with a flange of an insertion member 12 arranged in an outer cylinder 1 and an upper end of a plug 25 in an air-tight manner. It is divided into a gas chamber 51 in which external N gas is charged and a liquid chamber 52 which is communicated with an operation chamber 21 through an oil passage 24. A bent portion 54 formed in a form of pleats is extended circumferentially and formed cylindrically. When the pressure in the operation chamber 21 is high, the pressure of oil in the liquid chamber 52 is also high. Thus, the diaphragm 53 is inverted in the outward direction of the diameter, and volume fluctuation in a high pressure chamber 5 is enabled without extending and contracting the diapragm 53 itself. Durability of the diaphragm 53 is thus improved.

10. 发明专利

JPH07186678A PRESSURE CONTROL VALVE 失效
公开(公告)号：JPH07186678A
公开(公告)日：1995-07-25
申请号：JP33082693
申请日：1993-12-27
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , KIMURA YUKIHIDE
IPC分类号： B60G17/056
摘要： PURPOSE:To suppress the variation of the high frequency output port pressure by installing a subspool positioned on a main spool by a spring means and maintaining the degree of flow between the prescribed ports by the pressure in the target pressure space at each part for the output, high pressure, and low pressure. CONSTITUTION:In a sleeve center hole having the communication grooves 83 and 86 for a line pressure port 82 and a low pressure port 85, a subspool 90 having a main spool 100 and a groove 91a at the center is installed, and positioned by the compression coil springs 103 and 104 between the rands of the spools 100 and 90. Further, an opening 102 and a center hole 101 are formed on the main spool 100, and the output pressure applied at the right end and a compression coil spring 92 resist the pilot pressure, and each degree of flow beteen an output port-84, high pressure port 82 and a low pressure port 85 is adjusted according to the pressure relation. The characteristic vibration of each part is selected, and when the pressure vibration has the low frequency, the spools 90 and 100 shift integrally, and at the frequency over a prescribed value, the vibration of the spool 90 is suppressed, even if the spool 100 is vibrated. Accordingly, the increase of the variation of the output port pressure can be prevented.

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