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    Machine stability control system
    71.
    发明授权
    Machine stability control system 有权

    公开(公告)号：US10604179B2

    公开(公告)日：2020-03-31

    申请号：US15493260

    申请日：2017-04-21

    Applicant: Danfoss Power Solutions, Inc.

    Inventor： Brian Spranger

    IPC: B62D6/04 ,  G01C21/18

    Abstract: According to the present disclosure, a system and method for providing stability control to a machine includes generating a yaw signal at a gyroscope disposed on the machine and receiving the yaw signal at a controller in communication with the gyroscope. The controller is also in communication with a user input that generates control signals for driving at least one plant of the machine. The controller is configured to alter the control signals provided to the at least one plant from the user input based at least in part on the yaw signal.

    VEHICLE STEERING CONTROL SYSTEMS AND METHODS
    72.
    发明申请
    VEHICLE STEERING CONTROL SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20200070804A1

    公开(公告)日：2020-03-05

    申请号：US16122094

    申请日：2018-09-05

    Applicant: Danfoss Power Solutions, Inc.

    Inventor： Caleb Van De Stroet

    IPC: B60W10/20 ,  B62D5/04

    Abstract: According to the present disclosure, a steering system and method for a machine includes a vehicle control system configured to command steering of the machine, and a steering sensor in communication with the vehicle control system. The steering sensor is configured to detect a position of a steering actuator of the machine. The vehicle control system is configured to detect an acceleration rate of the machine and to command steering of the machine based at least in part on the position of the steering actuator and the acceleration rate of the machine.

    High ambient temperature propulsion speed control of a self-propelled agricultural product applicator
    74.
    发明授权
    High ambient temperature propulsion speed control of a self-propelled agricultural product applicator 有权

    公开(公告)号：US10393261B2

    公开(公告)日：2019-08-27

    申请号：US15833089

    申请日：2017-12-06

    Applicant: CNH Industrial America LLC ,  Danfoss Power Solutions Inc.

    Inventor： David J. Hafvenstein ,  Simon L. Nielsen

    IPC: F16H61/42 ,  F16H39/02 ,  F16H61/47 ,  A01C23/00 ,  F16H59/72 ,  A01M21/04

    Abstract: A system, apparatus and method are provided for limiting operating speed at high temperatures of a self-propelled, agricultural product applicator having a hydraulic drive system including a pump supplying pressurized hydraulic fluid to a variable-displacement hydraulic motor operatively connected for propelling the applicator. A temperature sensor detects a temperature of the pressurized hydraulic fluid in the hydraulic system. A propel controller is operatively connected between the temperature sensor and the propulsion motor and configured for limiting displacement of the propulsion motor according to one or more predetermined de-rated conditions resulting in reduced motor speed, in accordance with a predetermined schedule, when predetermined motor de-rating activation temperature limits of the hydraulic fluid are detected by the temperature sensor. The controller is further configured for providing a de-rated condition warning signal prior to limiting displacement of the propulsion motor.

    ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPS
    75.
    发明申请
    ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPS 审中-公开
    负载传感泵的电子扭矩和压力控制

    公开(公告)号：US20160363117A1

    公开(公告)日：2016-12-15

    申请号：US15120900

    申请日：2015-03-18

    Applicant: Danfoss Power Solutions Inc.

    Inventor： Kevin Ligenfelter ,  Gary LaFayette

    IPC: F04B49/06 ,  F04B1/32 ,  F04B1/29

    CPC classification number: F04B49/065 ,  F04B1/295 ,  F04B1/324 ,  F04B49/12

    Abstract: A pump control system, comprising: a motor (12) configured to drive a pump (14); a pressure relief valve (22) in fluid communication with the pump (14); a torque control valve (32) connected to a swashplate of the pump (14) and in fluid communication with the pressure relief valve (22); a swashplate angle sensor (36) connected to the swashplate (34); and a computer (40) connected to the swashplate angle sensor (36) and the pressure relief valve (22) wherein the computer (40) controls the pressure relief valve (22) based upon swashplate displacement to achieve maximum system pressure. The corresponding method of controlling is also disclosed.

    Abstract translation: 一种泵控制系统，包括：电动机（12），构造成驱动泵（14）; 与所述泵（14）流体连通的减压阀（22）; 与所述泵（14）的斜盘连接并与所述减压阀（22）流体连通的扭矩控制阀（32）; 连接到斜盘（34）的斜盘角度传感器（36）; 以及连接到斜盘角度传感器（36）和压力释放阀（22）的计算机（40），其中计算机（40）基于斜盘位移来控制泄压阀（22）以实现最大系统压力。 还公开了相应的控制方法。

    METHOD FOR ENGAGEMENT AND DISENGAGEMENT
    77.
    发明申请
    METHOD FOR ENGAGEMENT AND DISENGAGEMENT 有权
    参与和取消的方法

    公开(公告)号：US20150057899A1

    公开(公告)日：2015-02-26

    申请号：US14456232

    申请日：2014-08-11

    Applicant: Danfoss Power Solutions Inc.

    Inventor： Torsten Kohmaescher

    IPC: B60W10/04 ,  B60W10/10

    CPC classification number: B60W10/04 ,  B60W10/10 ,  B60W10/103 ,  B60W10/111 ,  B60Y2300/73 ,  F16H47/02 ,  F16H61/421 ,  F16H61/444 ,  F16H61/47 ,  F16H2047/025 ,  Y10T477/631

    Abstract: Method for engaging and disengaging a hydraulic motor which is adjustable in its displacement from and to a hydrostatic drive train of a hydromechanical transmission with a closed hydraulic fluid circuit. Two adjustable hydraulic motors and a hydraulic pump are arranged in parallel in the hydrostatic drive train and connected to a mechanical drive on the output side. At least one of the two hydraulic motors is connected to the mechanical drive via an assigned clutch. As appropriate to the driving situation, during operation of the other hydraulic motor and the hydraulic pump at least one of the hydraulic motors is engaged via the assigned clutch with the hydromechanical transmission from which the hydraulic motor was previously disengaged, likewise as appropriate to the driving situation. Before closing the clutch, the hydraulic motor to be engaged is accelerated load-free by deflecting its adjustment device in such a way that the rotational speed of an assigned clutch input shaft of the clutch is at least equal to the rotational speed of the clutch output shaft of the clutch which is connected to the mechanical gear. When the clutch is closed, both hydraulic motors act on a common output shaft of the mechanical gear.

    Abstract translation: 用于使液压马达接合和分离的方法，该液压马达与其具有闭合的液压流体回路的液压机械变速器的静液压驱动系统的位移可调。 两个可调节的液压马达和一个液压泵并联设置在静液压传动系中，并连接到输出侧的机械传动装置。 两个液压马达中的至少一个通过分配的离合器连接到机械驱动器。 根据驾驶情况，在其他液压马达和液压泵的操作期间，至少一个液压马达通过分配的离合器与液压马达预先脱离的液压机械变速器接合，同样适合于驾驶 情况。 在关闭离合器之前，待接合的液压马达通过使其调节装置偏转而使其无负载地加速，使得离合器的分配的离合器输入轴的转速至少等于离合器输出的转速 离合器的轴连接到机械齿轮。 当离合器关闭时，两个液压马达都作用在机械齿轮的公共输出轴上。

    SPEED CONTROL SYSTEM FOR HYDROSTATIC TRANSMISSION
    78.
    发明申请
    SPEED CONTROL SYSTEM FOR HYDROSTATIC TRANSMISSION 有权
    液压传动速度控制系统

    公开(公告)号：US20140372001A1

    公开(公告)日：2014-12-18

    申请号：US14302115

    申请日：2014-06-11

    Applicant: DANFOSS POWER SOLUTIONS INC.

    Inventor： Frank J. Rozycki ,  Simon L. Nielsen ,  Gary R. LaFayette

    IPC: F16H61/48

    CPC classification number: F16H61/48 ,  F16H61/4017 ,  F16H61/4157 ,  F16H61/42 ,  F16H61/421 ,  F16H61/423 ,  F16H61/433

    Abstract: A speed control system for a hydrostatic transmission includes an engine having a drive shaft connected to a hydraulic pump. At least one hydrostatic motor is connected to the pump in a closed circuit by a flow line. Connected to the motor via a system shaft is a vehicle system. A controller is connected to a plurality of sensors and a proportional high pressure relief valve that is connected to the flow line between the pump and the motor. Based on information received from the sensors, the controller sets the pressure relief valve to limit the pressure to a valve that will not over-speed the engine and allows the demands of the speed control system to be attained. This may be accomplished through the use of various algorithms.

    Abstract translation: 用于静液压变速器的速度控制系统包括具有连接到液压泵的驱动轴的发动机。 至少一个静液压马达通过流水线在闭合回路中连接到泵。 通过系统轴连接到电机是车辆系统。 控制器连接到多个传感器和连接到泵和电动机之间的流动管线的比例高压溢流阀。 根据从传感器接收的信息，控制器设置减压阀，以将压力限制在不会超速发动机的阀门上，并允许实现速度控制系统的要求。 这可以通过使用各种算法来实现。

    SELECTABLE FLOW HYDRAULIC GEAR PUMP
    79.
    发明申请
    SELECTABLE FLOW HYDRAULIC GEAR PUMP 有权
    可选流量液压齿轮泵

    公开(公告)号：US20140301882A1

    公开(公告)日：2014-10-09

    申请号：US14195226

    申请日：2014-03-03

    Applicant: Danfoss Power Solutions Inc.

    Inventor： Wallace K. Snead ,  Thomas G. Modica ,  Alfred J. Permann

    IPC: F04C18/08

    CPC classification number: F04C2/14 ,  F04B49/03 ,  F04C11/001 ,  F04C14/02 ,  F04C14/24 ,  F04C15/0057 ,  F04C15/06

    Abstract: A selective flow hydraulic gear pump has an integral unit with a front pump section and a rear pump section. The front pump section has a pumping gear set, gear plate, and bearing plate housing. The rear pump section has a pumping gear set, gear plate, and cover housing. The integral unit has an inlet port common to both the bearing plate housing and the cover housing. Check valves and solenoid operated control valves are contained within the bearing plate housing and the cover housing and are associated with a first fluid conduit. A second fluid conduit is in communication with and extends between the bearing plate housing an outlet port in the cover housing.

    Abstract translation: 选择性液压齿轮泵具有与前泵部分和后泵部分一体的单元。 前泵部分有一个泵送齿轮组，齿轮板和轴承板壳体。 后泵部分具有泵送齿轮组，齿轮板和盖壳体。 整体单元具有与轴承板壳体和盖壳体共同的入口端口。 止回阀和电磁操作控制阀包含在轴承板壳体和盖壳体内，并与第一流体导管相关联。 第二流体导管与容纳盖壳体中的出口的支承板连通并在其之间延伸。

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