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公开(公告)号：US08561752B1
公开(公告)日：2013-10-22
申请号：US13681024
申请日：2012-11-19
IPC分类号： B62D5/06
摘要： Power steering systems and methods to improve efficiency and performance of vehicle power steering systems. In one embodiment, there is provided an engine driven positive displacement hydraulic pump, a rotary valve coupled to a steering shaft for receiving hydraulic fluid under pressure in a rotary valve inlet and providing a differential pressure to a steering rack piston for a steering boost responsive to a torque exerted on the steering shaft, valving coupled between an output of the hydraulic pump, the rotary valve inlet and the hydraulic pump input for controllably coupling the output of the hydraulic pump to the rotary valve inlet or an input of the hydraulic pump, and a controller coupled to valving to maintain a flow rate of hydraulic fluid coupled to the rotary valve responsive to a pressure sensor output. Other embodiments are disclosed.
摘要翻译： 动力转向系统和方法，以提高车辆动力转向系统的效率和性能。 在一个实施例中，提供了一种发动机驱动的正排量液压泵，连接到转向轴的旋转阀，用于在压力下接收旋转阀入口中的液压流体，并且向转向架活塞提供压差，用于响应于 施加在转向轴上的扭矩，联接在液压泵的输出端，旋转阀入口和液压泵输入端之间的阀门，用于将液压泵的输出可控地耦合到旋转阀入口或液压泵的输入端; 耦合到阀门的控制器，其响应于压力传感器输出而保持耦合到旋转阀的液压流体的流量。 公开了其他实施例。
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公开(公告)号：US20130175111A1
公开(公告)日：2013-07-11
申请号：US13697376
申请日：2010-07-28
申请人： Jean-Marc Blond , Olivier Villot
发明人： Jean-Marc Blond , Olivier Villot
摘要： In a vehicle including a traction engine designed to drive wheels through a driveline that includes an upstream portion which is connected to the engine and a downstream portion which is permanently connected to the drive wheels, the power steering system includes a hydraulic circuit including a fluid tank and a steering actuator. The power steering system further includes a first pump which is driven by mechanical power from the downstream portion of the driveline, and a second pump which is driven by an electric motor. The first and second pumps are arranged in parallel between the fluid tank and the steering actuator and are capable of supplying fluid from the fluid tank to the steering actuator at the same time.
摘要翻译： 在包括牵引发动机的车辆中，所述牵引发动机被设计成通过传动系驱动车轮，所述传动系包括连接到所述发动机的上游部分和与所述驱动轮永久连接的下游部分，所述动力转向系统包括液压回路，所述液压回路包括流体箱 和转向致动器。 动力转向系统还包括由来自传动系的下游部分的机械动力驱动的第一泵和由电动机驱动的第二泵。 第一和第二泵平行布置在流体箱和转向致动器之间，并且能够同时从流体箱向转向致动器供应流体。
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公开(公告)号：US07905316B2
公开(公告)日：2011-03-15
申请号：US12493924
申请日：2009-06-29
申请人： Jongkil Lee
发明人： Jongkil Lee
IPC分类号： B62D5/06
CPC分类号： F16D25/061 , B62D5/063 , F16D48/02 , F16D48/06 , F16D2500/3069 , F16D2500/314 , F16D2500/3166 , F16D2500/7041
摘要： A clutch device of an oil pump in a power steering system includes a pulley shaft coupled with a pulley connected with a crankshaft of an engine via a belt, a body shaft coupled with a rotor rotatably installed in a pump body and provided with a vein, clutch plates provided in the pulley shaft and the body shaft, and transmitting a rotation power of the pulley shaft to the body shaft or blocking the rotation power therebetween, an elastic member provided in the body shaft, a check valve installed on a supply port connecting an airtight space, a solenoid valve installed on a return port connecting the airtight space in the pump body with an input port through which oil is supplied to the pump body, and a controller to control the operation of the solenoid valve.
摘要翻译： 动力转向系统中的油泵的离合器装置包括：带轮轴，其与通过带与发动机的曲轴连接的滑轮联接;主体轴，其可转动地安装在泵体中并设置有静脉; 设置在所述滑轮轴和所述主体轴中的离合器片，并且将所述滑轮轴的旋转动力传递到所述主体轴或阻止所述旋转动力;弹性构件，其设置在所述主体轴中;止回阀，安装在供给口连接 气密空间，安装在将本体中的气密空间连接到泵主体上的输入口的返回口上的电磁阀，以及控制电磁阀操作的控制器。
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公开(公告)号：US20100258375A1
公开(公告)日：2010-10-14
申请号：US12820631
申请日：2010-06-22
申请人： TODD ROBERT MILLER
发明人： TODD ROBERT MILLER
IPC分类号： B62D5/087
摘要： A hydraulic power steering system that maintains proportional pressure control between an input side of a gear and assist pressures internal to the steering gear by relying upon a control valve. A pressure differential is maintained between the input side of a gear and assist pressures internal to the steering gear throughout certain events. Those events include running the pump to fully charge the accumulator, idling the pump after fully charging the accumulator, discharging pressure from the fully charged accumulator at an onset of a steering event having a demand for steering load, recovering the discharged pressure of the accumulator by running the pump after turning on the pump at the onset of the steering event, and opening the relief valve in the valve manifold during the steering event.
摘要翻译： 一种液压动力转向系统，其通过依靠控制阀在齿轮的输入侧和辅助舵机内部的压力之间保持比例压力控制。 在某些事件中，在齿轮的输入侧和舵机内部的辅助压力之间保持压力差。 这些事件包括运行泵以使蓄能器完全充电，在蓄能器完全充满之后使泵空转，在具有对转向负载的需求的转向事件开始时，从完全充电的蓄能器排出压力，通过以下方式恢复蓄能器的排出压力 在转向事件开始后打开泵后运行泵，并在转向事件期间打开阀歧管中的安全阀。
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公开(公告)号：US20100257854A1
公开(公告)日：2010-10-14
申请号：US12821575
申请日：2010-06-23
申请人： Todd Robert Miller
发明人： Todd Robert Miller
IPC分类号： F16D31/02
摘要： A hydraulic power steering system that maintains proportional pressure control between an input side of a gear and assist pressures internal to the steering gear by relying upon a control valve. A pressure differential is maintained between the input side of a gear and assist pressures internal to the steering gear throughout certain events. Those events include running the pump to fully charge the accumulator, idling the pump after fully charging the accumulator, discharging pressure from the fully charged accumulator at an onset of a steering event having a demand for steering load, recovering the discharged pressure of the accumulator by running the pump after turning on the pump at the onset of the steering event, and opening the relief valve in the valve manifold during the steering event.
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公开(公告)号：US07743610B2
公开(公告)日：2010-06-29
申请号：US11947951
申请日：2007-11-30
申请人： Todd Robert Miller
发明人： Todd Robert Miller
摘要： A hydraulic power steering system that maintains proportional pressure control between an input side of a gear and assist pressures internal to the steering gear by relying upon a control valve. A pressure differential is maintained between the input side of a gear and assist pressures internal to the steering gear throughout certain events. Those events include running the pump to fully charge the accumulator, idling the pump after fully charging the accumulator, discharging pressure from the fully charged accumulator at an onset of a steering event having a demand for steering load, recovering the discharged pressure of the accumulator by running the pump after turning on the pump at the onset of the steering event, and opening the relief valve in the valve manifold during the steering event.
摘要翻译： 一种液压动力转向系统，其通过依靠控制阀在齿轮的输入侧和辅助舵机内部的压力之间保持比例压力控制。 在某些事件中，在齿轮的输入侧和舵机内部的辅助压力之间保持压力差。 这些事件包括运行泵以使蓄能器完全充电，在蓄能器完全充满之后使泵空转，在具有对转向负载的需求的转向事件开始时，从完全充电的蓄能器排出压力，通过以下方式恢复蓄能器的排出压力 在转向事件开始后打开泵后运行泵，并在转向事件期间打开阀歧管中的安全阀。
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67.发明申请POWER STEERING SYSTEM HAVING A VARIABLE-RATIO DRIVE MECHANISM FOR A VEHICLE 审中-公开具有用于车辆的可变比例驱动机构的动力转向系统公开(公告)号：US20090133953A1
公开(公告)日：2009-05-28
申请号：US11946587
申请日：2007-11-28
摘要： A power steering system for translating movement to a pair of wheels of a vehicle having an engine is disclosed. The system includes a steering assembly adapted for coupling engagement to the wheels for turning the wheels. The system includes a hydraulic pump having a pump input and a pump output and is coupled to the steering assembly and a planetary gear set. The system also includes a steering shaft operatively connected to the hydraulic pump for controlling a direction of the pump output and coupled to the steering assembly. The system further includes a variable-ratio drive mechanism having an electric motor and a controller. The electric motor is coupled to the planetary gear set and the controller communicates with the electric motor for controlling a rotational speed of the planetary gear set to maintain the pump output.
摘要翻译： 公开了一种用于将运动转换到具有发动机的车辆的一对车轮的动力转向系统。 该系统包括适于联接到车轮以转动车轮的转向组件。 该系统包括具有泵输入和泵输出并且联接到转向组件和行星齿轮组的液压泵。 该系统还包括可操作地连接到液压泵的转向轴，用于控制泵输出的方向并联接到转向组件。 该系统还包括具有电动机和控制器的可变比驱动机构。 电动机联接到行星齿轮组，并且控制器与电动机连通，用于控制行星齿轮组的转速以保持泵的输出。
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公开(公告)号：US20090120405A1
公开(公告)日：2009-05-14
申请号：US12355575
申请日：2009-01-16
申请人： Eduard GERUM
发明人： Eduard GERUM
CPC分类号： B62D5/063 , B60K25/00 , F04C2/3442 , F04C11/005 , F04C23/005 , F04C2270/02
摘要： A system has a compressor and a consumer which are coupled to a drivetrain and extract energy through the drivetrain. The consumer is suitable for varying an absorption of power, which is made available to it by the drivetrain, as a function of a power which is required for compressor operation and which is supplied from the drivetrain to the compressor. A pump has at least one pump chamber which generates a pumping power during pumping operation. The pump additionally has at least one pump chamber which generates no pumping power or a reduced pumping power during pumping operation.
摘要翻译： 系统具有压缩机和消耗器，其耦合到传动系并通过传动系提取能量。 消费者适合于根据由压缩机操作所需的功率并从传动系提供给压缩机的功率来改变动力传动系统可用的功率吸收。 泵具有至少一个泵室，其在泵送操作期间产生泵送功率。 泵还具有至少一个在泵送操作期间不产生泵送功率或减少的泵送功率的泵室。
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公开(公告)号：US07487856B2
公开(公告)日：2009-02-10
申请号：US11513382
申请日：2006-08-30
IPC分类号： B62D5/06
摘要： An electrically actuated, hydraulic power steering system is provided. The steering system includes a hydraulic pump for generating hydraulic pressure, a hydraulic fluid reservoir, a hydraulic cylinder, and a control valve arrangement that selectively connects the hydraulic cylinder to the pump and the hydraulic fluid reservoir. The control valve arrangement is characterized during the on-center position by a first and a second chamber of the hydraulic cylinder being in fluid communication with each other but not with the fluid reservoir. In one embodiment, the steering system has a steering sensor, a control box, and two pressure accumulators for providing at least two levels of steering assist.
摘要翻译： 提供电动液压动力转向系统。 转向系统包括用于产生液压的液压泵，液压油箱，液压缸和选择性地将液压缸连接到泵和液压油箱的控制阀装置。 控制阀装置的特征在于在中心位置，液压缸的第一和第二室彼此流体连通但不与流体储存器连通。 在一个实施例中，转向系统具有转向传感器，控制箱和用于提供至少两个级别的转向辅助的两个压力蓄能器。
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公开(公告)号：US07225894B2
公开(公告)日：2007-06-05
申请号：US11044121
申请日：2005-01-27
申请人： Andrew D. Broughton
发明人： Andrew D. Broughton
IPC分类号： B62D5/06
摘要： An engine driven pump 24 is connected with a power steering motor assembly 18. An electric motor 36 drives a pump 34 connected with the power steering motor assembly 18. A control apparatus 38, 44, 52, 62 and 72 effects operation of the electric motor 36 to drive the pump 34 when the power steering motor assembly 18 requires fluid in addition to fluid supplied by the engine driven pump 24.
摘要翻译： 发动机驱动泵24与动力转向电动机组件18连接。 电动机36驱动与动力转向电动机组件18连接的泵34。 当动力转向马达组件18除了由发动机驱动的泵24供应的流体之外，还需要流体，控制装置38,44,52,62和72实现电动马达36的操作以驱动泵34。
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