-
公开(公告)号:US5261234A
公开(公告)日:1993-11-16
申请号:US817569
申请日:1992-01-07
CPC分类号: E02F9/2228 , E02F9/2012 , E02F9/2203 , F15B11/055 , F15B21/087 , F15B2211/3053 , F15B2211/3111 , F15B2211/3144 , F15B2211/327 , F15B2211/329 , F15B2211/351 , F15B2211/6313 , F15B2211/6346 , F15B2211/6355 , F15B2211/665 , F15B2211/6656 , Y10T137/86622
摘要: An apparatus for controllably actuating a hydraulic actuator is provided. The apparatus is connected between a source of pressurized hydraulic fluid and the hydraulic actuator. The apparatus controllably provides pressurized hydraulic fluid to the hydraulic actuator. The apparatus includes a controller for receiving an operating signal and a load pressure signal and responsively actuating the hydraulic actuator.
摘要翻译: 提供一种用于可控地致动液压致动器的装置。 该装置连接在加压液压流体源和液压致动器之间。 该装置可控地向液压致动器提供加压液压流体。 该装置包括用于接收操作信号和负载压力信号并响应地致动液压致动器的控制器。
-
公开(公告)号:US4736811A
公开(公告)日:1988-04-12
申请号:US052946
申请日:1987-05-22
CPC分类号: B62D5/32
摘要: The steering system of some lightweight vehicles are electronically controlled and have a manually operated mechanical control as a backup. Such manual backup control would not be adequate for large earthmoving, construction and industrial type vehicles. The subject steering system includes an electrically controlled circuit actuated by rotation of a steering wheel for controlling a main pilot operated steering valve as the primary steering control. A hydraulic control circuit is also actuated by rotation of the steering wheel for controlling the same steering valve as a backup control when the electrically controlled circuit is not active. The hydraulic steering circuit is disabled when the electrically controlled circuit is activated. By using the same steering valve as an integral part of both circuits, the complexity and cost of the overall steering control system is reduced.
摘要翻译: 一些轻型车辆的转向系统是电子控制的,并具有手动操作的机械控制作为备用。 这种手动备用控制对于大型土方工程,建筑和工业型车辆来说是不够的。 主转向系统包括由控制主导向操作的转向阀作为主转向控制的方向盘的旋转致动的电控制回路。 当电控电路不活动时,液压控制回路也通过方向盘的旋转而被驱动,用于控制与备用控制相同的转向阀。 当电气控制电路被激活时,液压转向回路被禁用。 通过使用相同的转向阀作为两个回路的组成部分,整体转向控制系统的复杂性和成本降低。
-
3.
公开(公告)号:US5594643A
公开(公告)日:1997-01-14
申请号:US425680
申请日:1995-04-18
申请人: Charles W. Birchenough , Hans P. Dietz , Dwight S. Holloway , Noel J. Rytter , Rolland D. Scholl , Lorne W. Tweed
发明人: Charles W. Birchenough , Hans P. Dietz , Dwight S. Holloway , Noel J. Rytter , Rolland D. Scholl , Lorne W. Tweed
IPC分类号: B60K23/00 , F16H59/36 , F16H59/38 , F16H59/40 , F16H59/68 , F16H59/72 , F16H61/04 , F16H61/08 , F16H61/12 , G06F19/00 , F16H59/74
CPC分类号: F16H61/0437 , F16H61/08 , F16H2059/385 , F16H2059/6807 , F16H2061/0477 , F16H2061/1208 , F16H59/36 , F16H59/40 , F16H59/72 , Y10T477/67 , Y10T477/69383 , Y10T477/69387 , Y10T74/19251 , Y10T74/1926
摘要: The present invention provides a sensing system and method for providing information relating to a drivetrain during shifting operations. The drivetrain includes an engine, a torque converter and a transmission. The system includes sensors for detecting the output speed of the engine, the output speed of the torque converter, and the output speed of the transmission. The system detects the starting condition of a shifting operation, responsively determines a set of performance parameters, and produces a set of performance parameter signals.
摘要翻译: 本发明提供一种用于在换档操作期间提供与传动系相关的信息的感测系统和方法。 传动系包括发动机,变矩器和变速器。 该系统包括用于检测发动机的输出速度,变矩器的输出速度和变速器的输出速度的传感器。 该系统检测换档操作的起动条件,响应于确定一组性能参数,并产生一组性能参数信号。
-
公开(公告)号:US5040648A
公开(公告)日:1991-08-20
申请号:US608868
申请日:1990-11-05
申请人: Randall M. Mitchell , David W. Bump, deceased , Michael F. Coffman , Dwight S. Holloway , Lowell E. Johnson , Tony L. Marcott , Philip C. McKenzie , Noel J. Rytter
发明人: Randall M. Mitchell , David W. Bump, deceased , Michael F. Coffman , Dwight S. Holloway , Lowell E. Johnson , Tony L. Marcott , Philip C. McKenzie , Noel J. Rytter
IPC分类号: B60W10/00 , B60W10/02 , B60W10/04 , B60W30/18 , F16D48/06 , F16H59/02 , F16H59/04 , F16H59/08 , F16H61/02 , F16H61/14
CPC分类号: F16H61/143 , B60W10/02 , B60W10/10 , B60W10/18 , B60W30/18 , F16D48/066 , F16H59/02 , B60W2540/14 , B60W2710/023 , B60W2710/1038 , B60W30/18063 , F16D2500/1026 , F16D2500/10412 , F16D2500/1112 , F16D2500/3022 , F16D2500/3024 , F16D2500/3026 , F16D2500/30401 , F16D2500/30426 , F16D2500/30806 , F16D2500/31426 , F16D2500/3144 , F16D2500/3146 , F16D2500/31493 , F16D2500/50661 , F16D2500/50858 , F16D2500/70217 , F16D2500/70223 , F16D2500/70288 , F16D2500/70406 , F16D2500/70418 , F16D2500/7044 , F16D2500/7109 , F16H2059/088 , F16H59/044 , F16H61/0246 , F16H63/46 , Y10T477/635 , Y10T477/63525
摘要: A vehicle such as an earthmoving wheel loader has an engine, a torque converter having an impeller element, a reactor element and a turbine element, and an input clutch connected between the engine and the impeller element. An electrohydraulic control device is provided to controllably engage the input clutch and that includes a microprocessor-based electronic control module, an actuator mechanism having a control member that is progressively movable between first, second and third positions to deliver a first electrical signal to the electronic control module, and a valve for directing fluid to the input clutch at a decreasing pressure level when the control member is moved from the first to the second positions in response to another signal from the electronic control module. The electronic control module is programmed to maintain at least a minimal pressure level to the actuating piston of the input clutch when the control member is between the second and third positions. Moreover, a service brake is increasingly engaged by a service brake mechanism in response to the control member moving between the second and third positions. Other logic functions are included to control the input clutch and a lockup clutch connected between the engine and the turbine element.
摘要翻译: 诸如移土轮式装载机的车辆具有发动机,具有叶轮元件,反应器元件和涡轮机元件的变矩器和连接在发动机和叶轮元件之间的输入离合器。 电液控制装置被设置为可控制地接合输入离合器,并且包括基于微处理器的电子控制模块,致动器机构具有控制构件,该控制构件可在第一位置和第三位置之间逐渐移动,以将第一电信号传送到电子 控制模块和用于当控制构件响应于来自电子控制模块的另一个信号而从第一位置移动到第二位置时在降低的压力水平下将流体引导到输入离合器的阀。 当控制构件在第二和第三位置之间时,电子控制模块被编程为保持至少输入离合器的致动活塞的最小压力水平。 此外,响应于控制构件在第二和第三位置之间移动,行车制动器越来越多地被行驶制动机构接合。 包括其他逻辑功能以控制输入离合器和连接在发动机和涡轮机元件之间的锁止离合器。
-
-
-