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公开(公告)号：US5623093A
公开(公告)日：1997-04-22
申请号：US565369
申请日：1995-11-30
CPC分类号： F15B19/002 , E02F9/2025
摘要： In one aspect of the present invention, an apparatus and method for calibrating an electrohydraulic system is disclosed. In accordance with the present invention, a hydraulic valve that is responsive to an electrical valve signal controllably provides hydraulic fluid flow to a hydraulic actuator. A position sensor senses the position of the hydraulic actuator and responsively produces an actuator position signal. A microprocessor based controller receives the actuator position signal and determines when the hydraulic actuator begins movement, and associates the magnitude of the electrical valve signal to a first predetermined joystick position. Thereafter, the microprocessor based controller determines when the hydraulic actuator movement reaches terminal velocity and associates the magnitude of the electrical valve signal to a second predetermined joystick position.
摘要翻译： 在本发明的一个方面，公开了一种用于校准电动液压系统的装置和方法。 根据本发明，响应于电气阀信号的液压阀可控制地向液压致动器提供液压流体流。 位置传感器检测液压致动器的位置，并且响应地产生致动器位置信号。 基于微处理器的控制器接收致动器位置信号并确定液压致动器何时开始移动，并将电气阀信号的大小与第一预定操纵杆位置相关联。 此后，基于微处理器的控制器确定液压致动器运动何时达到终端速度，并将电动阀信号的大小与第二预定操纵杆位置相关联。
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公开(公告)号：US5897176A
公开(公告)日：1999-04-27
申请号：US616548
申请日：1996-03-15
IPC分类号： B60T10/04 , B60T11/18 , B60T13/58 , B60W10/08 , B60W30/18 , F16H61/40 , F16H61/4157 , F16H61/42 , F16H61/439 , F16D31/02
CPC分类号： F16H61/40 , B60T13/585 , B60W10/10 , B60W10/18 , F16H61/4157 , F16H61/439 , B60W10/103 , B60W10/184 , B60W30/18109
摘要： A braking apparatus includes a brake cylinder having a first opening and a second opening defined therein. The braking apparatus also includes a movable member located within the brake cylinder which has a channel defined therein. The braking apparatus further includes a brake chamber in fluid communication with the brake cylinder. The brake chamber has a brake member located therein. The movable member is moved to a position which allows fluid communication between the first and second opening through the channel thus creating a subsequent pressure drop in the system. The pressure drop causes a hydrostatic transmission in fluid communication with the brake apparatus to be neutralized by a responsive displacement of a pump and motor which reduces the travel speed of a vehicle. Additionally, the movement of the movable member causes a brake member to be forced against a moving object.
摘要翻译： 制动装置包括具有限定在其中的第一开口和第二开口的制动缸。 制动装置还包括位于制动缸内的可移动构件，其中限定有通道。 制动装置还包括与制动液缸流体连通的制动室。 制动室具有位于其中的制动构件。 可移动部件移动到允许通过通道的第一和第二开口之间的流体连通的位置，从而在系统中产生随后的压降。 压力下降导致与制动装置流体连通的静液压变速器被泵和马达的响应位移中和，这降低了车辆行驶速度。 此外，可移动部件的运动使得制动部件被迫抵靠运动物体。
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公开(公告)号：US06266960B1
公开(公告)日：2001-07-31
申请号：US09250210
申请日：1999-02-15
申请人： John S. Bibb , Paul A. Dvorak , Tim A. Green , W. Chris Swick , Peter R. Hildner
发明人： John S. Bibb , Paul A. Dvorak , Tim A. Green , W. Chris Swick , Peter R. Hildner
IPC分类号： F16D3102
CPC分类号： E02F3/3627 , E02F3/364 , E02F3/3663 , E02F9/2292
摘要： Earthmoving machines are often provided with quick coupling devices that allow them to change work implements in a relatively rapid fashion when compared to changing conventionally mounted implements. A locking system between the machine linkage and the implement is positioned between the components and includes a hydraulic system which continually applies pressurized fluid to the locking system.
摘要翻译： 通常，移土机器具有快速连接装置，当与改变常规安装的工具相比时，它们能够以相对快速的方式改变工作装置。 机械联动装置和工具之间的锁定系统位于组件之间，并且包括连续地将加压流体施加到锁定系统的液压系统。
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