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    • 1. 发明专利
    • Power steering apparatus
    • 动力转向装置
    • JP2009119898A
    • 2009-06-04
    • JP2007292792
    • 2007-11-12
    • Hitachi LtdToyota Motor Corpトヨタ自動車株式会社株式会社日立製作所
    • MATSUMURA TATSUOSASAKI MITSUOTAKAHASHI SATORUONO KOHEIKASAI EIJISAITO TAKATOSHI
    • B62D5/07B62D5/04B62D6/00
    • B62D5/065B62D5/0466
    • PROBLEM TO BE SOLVED: To provide a power steering apparatus avoiding hunting in a hand free state and reducing an unnatural feeling. SOLUTION: The power steering apparatus includes a first hydraulic passage and a second hydraulic passage having at least portions formed of an elastomer material and connecting both pressure chambers of a power cylinder to a pair of discharge ports of a reversible pump; a motor for driving the reversible pump; a motor control means for outputting a drive signal to the motor in accordance with a steering assist force applied to steered wheels; a pump reverse rotation determining means for determining a reverse rotation state of the reversible pump when an actual rotating direction of the reversible pump does not correspond to a direction in which the motor is rotated by the drive signal from the motor control means; and a damping torque applying means for damping a torque generated in the reversible pump when the pump reverse rotation determining means determines the reverse rotation state of the reversible pump. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种动力转向装置,以避免在无手力状态下的猎捕并减少不自然的感觉。 动力转向装置包括第一液压通道和第二液压通道,其至少部分由弹性体材料形成并将动力缸的两个压力室连接到可逆泵的一对排出口; 用于驱动可逆泵的马达; 电动机控制装置,用于根据施加到转向轮的转向辅助力将驱动信号输出到电动机; 泵反转判定装置,用于当所述可逆泵的实际旋转方向与所述电动机由所述电动机控制装置的驱动信号的旋转方向不对应时,确定所述可逆泵的反转状态; 以及阻尼扭矩施加装置,用于当泵反向旋转确定装置确定可逆泵的反向旋转状态时,阻尼在可逆泵中产生的扭矩。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Pump device and power steering device
    • 泵装置和动力转向装置
    • JP2007224872A
    • 2007-09-06
    • JP2006049591
    • 2006-02-27
    • Hitachi Ltd株式会社日立製作所
    • SASAKI MITSUONAKAKUKI YASUHITO
    • F04C2/10B62D5/06B62D5/07
    • PROBLEM TO BE SOLVED: To provide a pump device inhibiting the deterioration of torque transmission efficiency even if a pump rotation shaft is set horizontally. SOLUTION: The pump device includes a pump housing, a drive shaft rotatably supported by the pump housing, an inner rotor driven and rotated by the drive shaft and including external teeth, an outer rotor including inner teeth meshing with the external teeth of the inner rotor and a drive source driving and rotating the drive shaft. The drive shaft is arranged roughly perpendicularly to the vertical direction and a meshing part having the minimum pump volume of a plurality of pump chambers formed between the inner rotor and the outer rotor is arranged at a roughly vertical direction upper side. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使水泵旋转轴水平设置,也提供抑制转矩传递效率劣化的泵装置。 解决方案:泵装置包括泵壳体,由泵壳体可旋转地支撑的驱动轴,由转子驱动并由驱动轴驱动并包括外齿的内转子,包括与外齿啮合的内齿的外转子 内转子和驱动源驱动驱动轴。 驱动轴大致垂直于上下方向配置,在内侧转子与外侧转子之间形成有多个泵室的泵体积最小的啮合部配置在大致垂直方向上侧。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Power steering device
    • 动力转向装置
    • JP2007038885A
    • 2007-02-15
    • JP2005226057
    • 2005-08-04
    • Hitachi Ltd株式会社日立製作所
    • MISUNO MASAKIKURATA MASAKAZUSASAKI MITSUOBUSUJIMA MASAAKIKONDO YOSHIMORI
    • B62D5/07
    • B62D5/065B62D5/062
    • PROBLEM TO BE SOLVED: To provide a power steering device capable of removing a contaminant from working oil efficiently by avoiding the contaminant being sucked again into a reversible pump. SOLUTION: A first selector valve puts the power cylinder side of a first passage in communication with a reserver tank in a first condition in which the reversible pump receives liquid pressure supplied to a second passage and shuts the reversible pump side of the first passage from the power cylinder side, and in a second condition in which the reversible pump supplies the liquid pressure to the first passage, puts the reversible pump side of the first passage in communication with the power cylinder side, a second selector valve puts the power cylinder side of the second passage in communication with the reserver tank in the first condition in which the reversible pump receives the liquid pressure supplied to the first passage and shuts the reversible pump side of the second passage from the power cylinder side, and in the second condition in which the reversible pump supplies the liquid pressure to the second passage, puts the reversible pump side of the second passage in communication with the power cylinder side. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够通过避免将污染物再次吸入可逆泵而有效地从工作油中除去污染物的动力转向装置。 解决方案:第一选择阀将第一通道的动力缸侧与储存罐连通,在第一状态下,可逆泵接收供应到第二通道的液体压力,并将第一通道的可逆泵侧关闭 在动力缸侧通过,在第二状态下,可逆泵向第一通道供给液体压力,使第一通路的可逆泵侧与动力缸侧连通,第二切换阀将动力 在第一状态下第二通道的气缸侧与储存罐连通,在第一状态下,可逆泵接收供应到第一通道的液体压力并将第二通道的可逆泵侧从动力缸侧关闭,并且在第二状态 可逆泵将液体压力提供给第二通道的状态,将第二通道的可逆泵侧置于通道中 阳极与动力缸侧。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Power steering device for vehicle
    • 车辆动力转向装置
    • JP2005138614A
    • 2005-06-02
    • JP2003374153
    • 2003-11-04
    • Hitachi Ltd株式会社日立製作所
    • SASAKI MITSUO
    • B62D5/07
    • PROBLEM TO BE SOLVED: To positively eliminate fault wherein a negative pressure is generated in a hydraulic circuit, and to enhance steering feeling and quietness. SOLUTION: In the power steering device for the vehicle, an operation oil is selectively fed to/discharged from two operation chambers 11, 12 of a power cylinder 4 by a reversible pump 5 and a steering mechanism is operated by the power cylinder 4. A reservoir tank 16 is connected to a connection passage 14 for connecting one operation chamber 11 to a first feed/discharge port 5a of the reversible pump 5 and a connection passage 15 for connecting the other operation chamber 12 to a second feed/discharge port 5b of the reversible pump 5 through check valves 21, 22 respectively. The pressure on the inside of the reservoir tank 16 is set to a higher pressure than atmospheric pressure and the operation oil of higher pressure than the atmospheric pressure is always replenished to the respective connection passages 14, 15. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:积极消除在液压回路中产生负压的故障,并提高转向感和安静性。 解决方案:在车辆的动力转向装置中,操作油通过可逆泵5选择性地供给到动力缸4的两个操作室11,12排出,转向机构由动力缸 储液罐16连接到连接通道14,用于将一个操作室11连接到可逆泵5的第一进给/排出口5a以及用于将另一个操作室12连接到第二进给/排出口的连接通道15 可逆泵5的端口5b分别通过止回阀21,22。 储存箱16内部的压力被设定为比大气压更高的压力,并且高于大气压力的工作油总是补充到相应的连接通道14,15上。(C) 2005年,JPO&NCIPI
    • 7. 发明专利
    • Power steering device
    • 动力转向装置
    • JP2008179172A
    • 2008-08-07
    • JP2007012111
    • 2007-01-23
    • Hitachi LtdToyota Motor Corpトヨタ自動車株式会社株式会社日立製作所
    • SASAKI MITSUOONO KOHEI
    • B62D5/07
    • PROBLEM TO BE SOLVED: To provide a power steering device with a shortened oil path connecting a hydraulic power cylinder to a hydraulic pump of the power steering device and improved steering response. SOLUTION: A pump unit 3 is composed by integrating a reservoir tank 9, the hydraulic pump 10 and an electric motor 11. A tank body part 12 of the reservoir tank 9 of the pump unit 3 is integrally molded with a cylinder tube 2a of the hydraulic power cylinder 2 and both hydraulic chamber of the hydraulic pump 10 and the hydraulic power cylinder 2 are connected by a first oil path 5 and a second oil path 6. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种动力转向装置,其具有将液压动力缸连接到动力转向装置的液压泵的缩短的油路,并且改善了转向响应。 解决方案:泵单元3由储存罐9,液压泵10和电动机11组成。泵单元3的储存罐9的罐体部分12与缸筒 液压动力缸2的液压室2a和液压泵10的液压室2a和液压动力缸2之间通过第一油路5和第二油路6连接。版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Oil pump and method of assembling the same
    • 油泵及其组装方法
    • JP2008151019A
    • 2008-07-03
    • JP2006339360
    • 2006-12-18
    • Hitachi Ltd株式会社日立製作所
    • NAKAKUKI YASUHITOKIDOKORO KANAMEABE TETSUOSAKAKI TOSHIMITSUSASAKI MITSUOKURATA MASAKAZU
    • F04C15/00F04C2/10
    • F04C2/102F04C2/086F04C2230/60Y10T29/49236Y10T29/49895
    • PROBLEM TO BE SOLVED: To provide an oil pump and the like that can easily ensure an accuracy of a clearance between gears on an outer rotor and an inner rotor, while simplifying a structure of the oil pump. SOLUTION: In the oil pump 1, a cam ring 23 is fixed so as to be sandwiched between a pump body 21 and a covering member 22 provided facing to each other. Inside the cam ring, an inner rotor 25 fixed on an end side of a driving shaft 26 inserted in the pump body in the axial direction, and an outer rotor 24 fitted inside the cam ring and having inner gear teeth 24a engaged with outer gear teeth 25a of the inner rotor, are accommodatingly arranged. When this oil pump is assembled, the cam ring is aligned by a fixture 31 determining a relative position of the cam ring with respect to the pump body with reference to a position of a shaft inserting hole 21a through which the driving shaft is inserted, and thereby ensuring an accuracy of assembling of the cam ring. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够容易地确保外转子和内转子之间的齿轮间隙的精度的油泵等,同时简化油泵的结构。 解决方案:在油泵1中,凸轮环23被固定以夹在泵体21和彼此相对设置的覆盖部件22之间。 在凸轮环的内部,固定在沿轴向插入泵主体的驱动轴26的端侧的内转子25和装配在凸轮环内的具有与外齿轮齿啮合的内齿轮24a的外转子24 内转子25a的容纳地配置。 当该油泵组装时,凸轮环通过固定装置31对准,固定装置31根据驱动轴插入的轴插入孔21a的位置确定凸轮环相对于泵体的相对位置;以及 从而确保凸轮环的组装精度。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Steering device
    • 转向装置
    • JP2008094288A
    • 2008-04-24
    • JP2006279401
    • 2006-10-13
    • Hitachi Ltd株式会社日立製作所
    • ITO TAKAHIROYOKOYAMA ATSUSHISASAKI MITSUO
    • B62D5/06B62D5/12B62D6/00B62D101/00B62D103/00B62D113/00B62D119/00
    • B62D3/14B62D5/003B62D5/065B62D5/30
    • PROBLEM TO BE SOLVED: To provide a transmission ratio variable steering device capable of achieving mountability and cabin space securance and at the same time preventing deterioration of steering feeling. SOLUTION: In the steering device, a steering wheel 11 is connected to a steered wheel 18 by a hydraulic circuit. Rotational movement of the steering wheel 11 is converted into linear movement by a transmission mechanism 17 of which transmission ratio from the linear movement to the rotational movement is lower than that from the rotational movement to the linear movement, to move a piston 14, and by the hydraulic pressure, steering force is transmitted to the steered wheel 20 connected to a piston 24 of an output cylinder 23. An oil amount ratio adjusting mechanism 29 is connected to a first hydraulic circuit comprising a first hydraulic chamber 15, a third hydraulic chamber 25 and a first oil passage 27 and a second hydraulic circuit comprising a second hydraulic chamber 16, a fourth hydraulic chamber 26 and a second oil passage 28, so as to perform tandem control with a steering actuator 21. COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供一种能够实现安装性和驾驶舱空间保证性的传动比可变转向装置,同时防止转向感的劣化。 解决方案:在转向装置中,方向盘11通过液压回路连接到转向轮18。 方向盘11的旋转运动通过传动机构17转换为线性运动,传动机构17从传动机构17将直线运动传递到旋转运动的传动比低于从旋转运动传递到线性运动的传动比,以便使活塞14移动 液压,转向力传递到连接到输出缸23的活塞24的转向轮20.油量比调节机构29连接到第一液压回路,该第一液压回路包括第一液压室15,第三液压室25 以及第一油路27和第二液压回路,其包括第二液压室16,第四液压室26和第二油路28,以便与转向致动器21进行串联控制。版权所有(C) 2008年,JPO&INPIT
    • 10. 发明专利
    • Vehicle control system
    • 车辆控制系统
    • JP2007038886A
    • 2007-02-15
    • JP2005226058
    • 2005-08-04
    • Hitachi Ltd株式会社日立製作所
    • YAMAGUCHI SUNAOSASAKI MITSUOYAMANO KAZUYATAKAHASHI SATORUHIGUMA MOTOHIRO
    • B60R21/00B60T8/172B60T8/1755B60W10/18B60W10/184B60W10/20B60W30/02B60W30/045
    • B62D6/003B60T8/17552B60T2230/02B60T2260/02B60W30/045B60W40/101
    • PROBLEM TO BE SOLVED: To provide a vehicle control system for sufficiently demonstrating the effects of braking control, and for improving a traveling feeling. SOLUTION: This vehicle control system is provided with a sideslipping angle detecting means for detecting the sideslipping angle of the vehicle and the over-steering state of the vehicle, a steering assist means for applying steering assist force to a steering wheel and a wheel speed control means for controlling the braking force or driving force of each wheel, respectively so that the slip of the vehicle can be reduced. When the sideslipping angle and the over-steering state are detected by the sideslipping angle detecting means, the steering assist means generates the steering assist force in a direction where the sideslipping angle is decreased, and the wheel speed control means generates the steering assist force in a direction where the sideslipping angle is decreased by the steering assist means, and when the sideslipping angle is a predetermined value or more, the wheel speed control means controls each wheel so that the slip of the vehicle can be decreased. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于充分展示制动控制的效果并提高行驶感觉的车辆控制系统。 解决方案:该车辆控制系统设置有用于检测车辆的侧倾角和车辆的过度转向状态的侧倾角检测装置,用于向方向盘施加转向辅助力的转向辅助装置,以及 车轮速度控制装置,用于分别控制每个车轮的制动力或驱动力,从而可以减少车辆的滑动。 当侧倾角检测装置检测到侧倾角和过转向状态时,转向辅助装置在侧倾角减小的方向上产生转向辅助力,并且车轮速度控制装置产生转向辅助力 通过转向辅助装置降低侧倾角度的方向,并且当侧倾角度为预定值以上时,车轮速度控制装置控制每个车轮,使得车辆的滑动可以减小。 版权所有(C)2007,JPO&INPIT