-
1.发明授权Hydraulic control system for improving pump response and dynamic matching of pump and valve 失效液压控制系统，用于提高泵响应和泵与阀的动态匹配公开(公告)号：US06446433B1
公开(公告)日：2002-09-10
申请号：US09661714
申请日：2000-09-14
IPC分类号： F16D3102
CPC分类号： F15B21/087 , F04B49/065 , F04B49/225 , F04B2205/16 , F04B2205/172 , F15B11/006 , F15B11/08 , F15B21/008 , F15B21/08 , F15B2211/20546 , F15B2211/30575 , F15B2211/327 , F15B2211/35 , F15B2211/6303 , F15B2211/6652 , F15B2211/6654 , F15B2211/853
摘要： A hydraulic control system having a pump for delivering fluid under pressure from a fluid reservoir, a hydraulic actuator selectively driven by the fluid, the system comprises a main flow control valve connected between the pump and the actuator for selectively providing the fluid to and from the actuator, and a control unit connected to the main flow control valve for controlling operation of the main flow control valve to control the rate of change of the area of the main flow control valve relative to the delivery of fluid from the pump, and the control unit connected to the pump to increase or decrease the actual pump command proportional to the inverse of the pump command.
摘要翻译： 一种具有用于在压力下从流体储存器输送流体的泵的液压控制系统，由流体选择性驱动的液压致动器，所述系统包括连接在泵和致动器之间的主流量控制阀，用于选择性地将流体提供到和 致动器和连接到主流量控制阀的控制单元，用于控制主流量控制阀的操作，以控制主流量控制阀相对于来自泵的流体输送的面积的变化率，并且控制 连接到泵的单元增加或减少与泵命令的倒数成比例的实际泵命令。
-
公开(公告)号：US07770681B2
公开(公告)日：2010-08-10
申请号：US11786288
申请日：2007-04-11
CPC分类号： B60K28/165 , B60W2510/0233 , B60W2510/1005 , B60W2510/105 , B60W2520/10 , B60W2520/28 , B60Y2200/415 , E02F9/2037 , Y10T477/755
摘要： A method of operating a machine having a lockable differential includes monitoring a first operating parameter indicative of wheel slip, and monitoring a second operating parameter different from the first parameter, the method further including controlling locking and unlocking of the differential responsive to the second operating parameter. A machine is provided having an electronic controller including software control logic for controlling locking and unlocking of a differential, the electronic controller being configured to lock the differential where the machine is in an operating mode where wheel slip is likely, such as a digging/dozing mode. Satisfaction of criteria for locking may be recognition by the controller of a predetermined pattern of sensor inputs corresponding with a likely wheel slip condition, or actual slip detection.
摘要翻译： 一种操作具有可锁定差速器的机器的方法包括：监测指示车轮滑动的第一操作参数，以及监测与第一参数不同的第二操作参数，该方法还包括响应于第二操作参数控制差速器的锁定和解锁 。 提供一种具有电子控制器的电子控制器，其包括用于控制差速器的锁定和解锁的软件控制逻辑，该电子控制器被配置为锁定机器处于可能发生车轮打滑的操作模式中的差速器，例如挖掘/打瞌睡 模式。 用于锁定的标准的满足可以由控制器识别对应于可能的车轮滑移条件或实际滑移检测的传感器输入的预定模式。
-
公开(公告)号：US06631320B1
公开(公告)日：2003-10-07
申请号：US10305619
申请日：2002-11-27
IPC分类号： B60K2816
CPC分类号： B62D12/00 , B60K17/20 , B60K23/04 , B60T8/175 , B60W2300/17 , B60W2520/22 , B60W2520/28 , B60W2530/10 , B60W2540/12 , B60Y2200/41 , B62D11/24 , E02F9/0841 , E02F9/2083 , E02F9/225 , E02F9/2253 , E02F9/24
摘要： An articulated work machine has a front frame and a rear frame connected for pivotal movement therebetween for steering the machine by an articulation joint. Each of the front and rear frames has two driven wheels, spaced laterally, each having a brake associated therewith. As the machine articulates during steering, one or more of the wheels may lose traction and slip. An electronic traction control system receives measured wheel speed signals and an articulation angle signal, calculates a desired wheel speed responsive to the wheel speed and articulation angle signals, and selectively applies the brakes until the measured wheel speed is equal to the desired wheel speed.
摘要翻译： 铰接式工作机具有前框架和后框架，用于在它们之间枢转运动，用于通过铰接接头来操纵机器。 前框架和后框架中的每一个具有两个从动轮，横向间隔开，每个具有与之相关联的制动器。 当机器在转向过程中关节时，一个或多个车轮可能会失去牵引力并滑动。 电子牵引控制系统接收测量的车轮速度信号和关节角度信号，响应于车轮速度和关节角度信号来计算期望的车轮速度，并选择性地施加制动器，直到所测量的车轮速度等于期望车轮速度。
-
公开(公告)号：US06997521B2
公开(公告)日：2006-02-14
申请号：US10236165
申请日：2002-09-06
IPC分类号： B60T13/74
摘要： A vehicle includes at least one wheel, a parking brake associated with the at least one wheel and a service brake associated with the at least one wheel, and a braking control system. The braking control system interprets operator on/off commands to the parking brake. The service brakes are actuated instead of or in addition to the parking brake when a parking brake application is ordered and the vehicle speed falls outside a preferred vehicle speed range. If the vehicle is stopped and the parking brake is engaged, the parking brake is not disengaged responsive to an operator command until the service brake condition is within a preferred ready range.
摘要翻译： 车辆包括至少一个车轮，与所述至少一个车轮相关联的驻车制动器和与所述至少一个车轮相关联的行车制动器以及制动控制系统。 制动控制系统将操作员的开/关命令解释为驻车制动器。 当订购驻车制动器应用并且车速落在优选的车辆速度范围之外时，行车制动器被驱动而不是驻车制动器或除驻车制动器之外。 如果车辆停止并且驻车制动器接合，则驻车制动器响应于操作者指令而不会分离，直到行车制动条件在优选准备范围内。
-
公开(公告)号：US06655136B2
公开(公告)日：2003-12-02
申请号：US10024312
申请日：2001-12-21
申请人： Bradford J. Holt , John Krone , Andrew Nippert
发明人： Bradford J. Holt , John Krone , Andrew Nippert
IPC分类号： F16D3102
CPC分类号： F15B11/006 , E02F9/2207 , E02F9/2217 , E02F9/2296 , F15B1/021 , F15B1/024 , F15B11/024 , F15B21/14 , F15B2211/20553 , F15B2211/30575 , F15B2211/31576 , F15B2211/351 , F15B2211/353 , F15B2211/40515 , F15B2211/41536 , F15B2211/473 , F15B2211/625 , F15B2211/71 , F15B2211/75 , F15B2211/76 , F15B2211/88 , F16D31/00 , F16D33/00
摘要： A hydraulic system is provided. The hydraulic system includes a a hydraulic actuator, a source of pressurized fluid, and a directional control valve controlling fluid flow into and out of the hydraulic actuator. An accumulator is disposed between a fluid input line and a fluid output line for the directional control valve. A regeneration control valve is disposed between the accumulator and the output of the source of pressurized fluid. A storage control valve is disposed between the fluid output line and a tank of the hydraulic system.
摘要翻译： 提供液压系统。 液压系统包括液压致动器，加压流体源和控制流体流入和流出液压致动器的方向控制阀。 蓄液器设置在用于方向控制阀的流体输入管线和流体输出管线之间。 再生控制阀设置在蓄能器和加压流体源的输出之间。 存储控制阀设置在流体输出管线和液压系统的罐之间。
-
公开(公告)号：US20080255735A1
公开(公告)日：2008-10-16
申请号：US11786288
申请日：2007-04-11
CPC分类号： B60K28/165 , B60W2510/0233 , B60W2510/1005 , B60W2510/105 , B60W2520/10 , B60W2520/28 , B60Y2200/415 , E02F9/2037 , Y10T477/755
摘要： A method of operating a machine having a lockable differential includes monitoring a first operating parameter indicative of wheel slip, and monitoring a second operating parameter different from the first parameter, the method further including controlling locking and unlocking of the differential responsive to the second operating parameter. A machine is provided having an electronic controller including software control logic for controlling locking and unlocking of a differential, the electronic controller being configured to lock the differential where the machine is in an operating mode where wheel slip is likely, such as a digging/dozing mode. Satisfaction of criteria for locking may be recognition by the controller of a predetermined pattern of sensor inputs corresponding with a likely wheel slip condition, or actual slip detection.
摘要翻译： 一种操作具有可锁定差速器的机器的方法包括：监测指示车轮滑动的第一操作参数，以及监测与第一参数不同的第二操作参数，该方法还包括响应于第二操作参数控制差速器的锁定和解锁 。 提供一种具有电子控制器的电子控制器，其包括用于控制差速器的锁定和解锁的软件控制逻辑，该电子控制器被配置为锁定机器处于可能发生车轮打滑的操作模式中的差速器，例如挖掘/打瞌睡 模式。 用于锁定的标准的满足可以由控制器识别对应于可能的车轮滑移条件或实际滑移检测的传感器输入的预定模式。
-
公开(公告)号：US07416265B2
公开(公告)日：2008-08-26
申请号：US10304340
申请日：2002-11-26
IPC分类号： B60T8/32
CPC分类号： B60T13/662 , B60T2230/04 , Y10T477/644
摘要： A vehicle has a brake operator device adapted to travel in a range of brake operator device positions and produce a brake input signal, and a transmission adapted to produce a transmission gear signal. An electronic control module receives the brake input signal and the transmission gear signal and responsively controls engine braking, brake engagement, and/or a transmission downshift. The engine, brakes, and transmission are controlled differently responsive to the brake operator device position depending upon the transmission being in a higher or lower gear. In addition, braking is controlled during a downshift to avoid jerk.
摘要翻译： 车辆具有适于在一系列制动操作装置位置行进并产生制动输入信号的制动操作装置，以及适于产生传动齿轮信号的变速器。 电子控制模块接收制动输入信号和变速器齿轮信号，并且响应地控制发动机制动，制动器接合和/或变速器降档。 发动机，制动器和变速器根据制动操作装置的位置而不同地受到控制，这取决于变速器处于较高或较低档位。 此外，在降档期间控制制动以避免冲击。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.024 秒)
