Control apparatus and control system

    公开(公告)号:US10344852B2

    公开(公告)日:2019-07-09

    申请号:US15877581

    申请日:2018-01-23

    摘要: A control apparatus configured to control an automatic transmission to which a driving force of an engine is input includes a detection unit provided in the automatic transmission, and a processing unit configured to generate load information concerning a load on the automatic transmission based on the detection result of the detection unit and transmit the load information to the control apparatus of the engine. The processing unit transmits dummy information that is not based on the detection result of the detection unit as the load information at least on condition that the automatic transmission is in an operation state in which a load on an input shaft is released.

    Emergency stop apparatus for hydraulic speed change gear
    4.
    发明授权
    Emergency stop apparatus for hydraulic speed change gear 失效
    液压变速齿轮紧急停机装置

    公开(公告)号:US6027179A

    公开(公告)日:2000-02-22

    申请号:US21438

    申请日:1998-02-10

    申请人: Mitsuru Arai

    发明人: Mitsuru Arai

    摘要: An emergency stop apparatus for a hydraulic speed change gear is capable of quickly reducing the pump discharge to zero in order to stop the traveling of a vehicle at the time of an emergency, where the vehicle employs a hydraulic travel drive system, such as in construction equipment, agricultural equipment, etc. The apparatus includes a variable capacity type hydraulic pump (41); a hydraulic motor (43); a travel operating level (59); an intermediate lever, which is connected to the travel operating lever by a wire cable; a servo valve (52); a servo valve input lever (57), which is attached to the servo valve; and an interlock device between the intermediate lever and the servo valve input lever. When the interlock device is engaged, the servo valve input lever is actuated according to the operation of the travel operating lever so as to displace the servo valve in accordance with the operating amount of the travel operating lever to increase or decrease the discharge of the variable capacity type hydraulic pump so as to change the rotational speed of the hydraulic motor. When the interlock device is disengaged, the servo valve input lever is not connected to the intermediate lever. An emergency stop switch can actuate a solenoid valve to pass pressurized oil to a detent means to effect disengagement of the servo valve input lever from the intermediate lever.

    摘要翻译: 用于液压变速齿轮的紧急停止装置能够将泵排出速度快速地减至零,以便在紧急情况下停止车辆的行驶,其中车辆采用诸如施工中的液压行驶驱动系统 设备,农业设备等。该装置包括可变容量型液压泵(41); 液压马达(43); 旅行业务水平(59); 中间杠杆,通过电缆线连接到行驶操作杆; 伺服阀(52); 连接到伺服阀的伺服阀输入杆(57); 以及中间杆和伺服阀输入杆之间的联锁装置。 当联锁装置接合时,伺服阀输入杆根据行驶操作杆的操作被致动,以便根据行驶操作杆的操作量来移动伺服阀,以增加或减少变量的排放 容量型液压泵,以改变液压马达的转速。 当联锁装置脱离时,伺服阀输入杆未连接到中间杆。 紧急停止开关可以致动电磁阀以将加压油传递到制动装置,以使伺服阀输入杆与中间杆分离。

    Hydrostatic Assembly
    5.
    发明申请

    公开(公告)号:US20210116020A1

    公开(公告)日:2021-04-22

    申请号:US17069348

    申请日:2020-10-13

    申请人: Robert Bosch GmbH

    发明人: Ralf Schueler

    IPC分类号: F16H61/4192 F16H61/4148

    摘要: A hydrostatic assembly includes a pressure medium with a variable viscosity and a control device through which at least one process variable or state variable of the hydrostatic assembly is open-loop or closed-loop controlled as a function of the viscosity. The hydrostatic assembly further includes a temperature sensing device configured to sense a temperature of the pressure medium.

    FLUSHING OF HYDRAULIC FLUID ON START-UP

    公开(公告)号:US20210025491A1

    公开(公告)日:2021-01-28

    申请号:US16754587

    申请日:2018-10-08

    发明人: Ante BOZIC

    摘要: The invention relates to a self-maintenance system (1) for a vehicle hydraulic assistance device (2), the said device (2) comprising a hydraulic machine (21, 23), the said hydraulic machine (21, 23) being configured to be brought into operation, or deactivated, alternately, the bringing-into-operation and the deactivation being afforded by movement of bringing-into-operation moving parts (211, 231), and the engagement and disengagement of the assistance being operable on command, the system (1) comprising a control module (11) configured to command the bringing into operation of the hydraulic machine (21, 23) for a predetermined length of time and then command deactivation of the hydraulic machine (21, 23) so as to flush all or part of the hydraulic machine (21, 23), the said commands being independent of a command to engage and disengage the assistance.

    Electro-hydraulic compact drive for rotational movements

    公开(公告)号:US10435126B2

    公开(公告)日:2019-10-08

    申请号:US15553675

    申请日:2016-02-25

    申请人: Robert Bosch GmbH

    摘要: An electro-hydraulic compact drive for underwater use and for driving an output element includes a hydraulic motor, a hydraulic pump, and an electric motor as components of the electro-hydraulic compact drive. The hydraulic motor has an output shaft. The hydraulic pump supplies the hydraulic motor with hydraulic fluid via a working line. The hydraulic pump is driven by the electric motor. The components of the electro-hydraulic compact drive are located in a closed container filled with a hydraulic fluid. The container has an opening for coupling the output shaft of the hydraulic motor to the output element. The electro-hydraulic compact drive forms a closed unit that contains the complete electric motor/hydraulic pump/hydraulic motor arrangement. The compact drive combines the advantages of the high power density of hydraulics with a decentralized electric direct drive. The handling of the drive is simplified, thus also simplifying the control of underwater vehicles and machines.

    Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motors
    8.
    发明授权
    Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motors 有权
    具有超中心泵/电机的液压混合动力汽车的安全运行方法

    公开(公告)号:US09346347B2

    公开(公告)日:2016-05-24

    申请号:US13637847

    申请日:2011-04-08

    摘要: Fail-safe methods for utilizing an over-center pump/motor in a hydraulic hybrid vehicle are disclosed. A high-pressure fluid shutoff valve and an optional electrically or manually operated valve are additionally provided as means to ensure disconnection of the high pressure source in the event of a failure. Displacement stroke position and pressure differentials across the pump/motor are continually monitored. On detection of various modes of failure or irregularity in control of displacement, actions are taken including any of: the high pressure and low pressure accumulators are shut off automatically or manually, a check valve between the high and low pressure ports of the pump/motor is activated, and a small amount of pressurized fluid is released from the high pressure circuit to depressurize the captive fluid. Safe startup and shutdown procedures are also specified. The system provides for safe operation of a hydraulic hybrid vehicle that includes an engine pump and drive motor, at least one of which operates over-center. The system optionally provides a displacement control valve that is controlled by feedback from an actuator or displacement position sensor and that on loss of electric power to the displacement control valve will cause the controlled pump/motor to stroke to a zero displacement position.

    摘要翻译: 公开了在液压混合动力车辆中利用超中心泵/马达的故障安全方法。 另外提供高压流体截止阀和可选的电动或手动操作的阀作为在发生故障时确保高压源断开的装置。 持续监控泵/电机上的位移行程位置和压力​​差。 在检测各种失效模式或位移控制不规则的情况下,采取以下措施:高压和低压蓄能器自动或手动关闭,泵/电机的高压端口和低压端口之间的止回阀 被激活,并且少量的加压流体从高压回路释放以使捕获流体减压。 还指定了安全的启动和关闭程序。 该系统提供了包括发动机泵和驱动电动机的液压混合动力车辆的安全操作,其中至少一个操作在中心以上。 该系统可选地提供一个位移控制阀,其通过来自致动器或位移传感器的反馈来控制,并且在排出控制阀的电力损失时将导致受控的泵/电动机行驶到零位移位置。