ELECTRIC DRIVE SYSTEM
    1.
    发明申请
    ELECTRIC DRIVE SYSTEM 有权
    电驱动系统

    公开(公告)号:US20160006378A1

    公开(公告)日:2016-01-07

    申请号:US14769535

    申请日:2014-02-05

    发明人: David Grant ALLAN

    IPC分类号: H02P5/695 B60L15/32

    摘要: This invention concerns an electric drive system (200) for driving an output. The electric drive system comprises: a first electric motor (250) arranged to drive a first input shaft (230) at a first angular velocity, ω1, and a second electric motor (260) arranged to drive a second input shaft (240) at a second angular velocity, ω2. A gear mechanism (210) is provided and is arranged to transmit angular rotation of the first (230) and second (240) input shafts to drive the output (220) at an output angular velocity, ωout, such that ωout is proportional to aω1-bω2, where a and b are constants. The electric drive system (200) further comprises a controller (270) arranged to control operation of the first (250) and second (260) electric motors. When the output (220) is to be driven from ωout=0, the controller (270) is arranged to control the first (250) and second (260) electric motors to drive the first (230) and second (240) input shafts. The input shafts are driven in a first phase to primary first and second angular velocities, ω1,p and ω2,p, such that aω1,p≈bω2,p. The input shafts are also subsequently driven in a second phase in which the first angular velocity, ω1, or the second angular velocity, ω2, or both are varied such that aω 1≠bω2 and the output is driven from ωout=0. The result of this is that the motors run in a more efficient part of their output profile, even whilst the vehicle is at rest, pulling off (especially in situations of high output load such as on off-road or otherwise difficult terrain), or moving at low velocity.

    摘要翻译: 本发明涉及用于驱动输出的电驱动系统(200)。 电驱动系统包括:布置成以第一角速度ω1驱动第一输入轴(230)的第一电动机(250)和布置成驱动第二输入轴(240)的第二电动机(260) 第二个角速度ω2。 齿轮机构(210)被设置成传递第一(230)和第二(240)输入轴的角度旋转以驱动输出(220)以输出角速度ωout,使得ωout与aω1成比例 -bω2,其中a和b是常数。 电驱动系统(200)还包括控制器(270),其被布置成控制第一(250)和第二(260)个电动机的操作。 当输出(220)要从ωout= 0驱动时,控制器(270)被布置成控制第一(250)和第二(260)个电动机来驱动第一(230)和第二(240)输入轴 。 输入轴在第一相中被驱动到初级第一和第二角速度ω1,p和ω2,p,使得aω1,p≈bω2,p。 输入轴也随后在第二相中驱动,其中第一角速度ω1或第二角速度ω2或二者都变化,使得aω1≠bω2,并且输出从ωout= 0驱动。 这样做的结果是,即使车辆处于静止状态,电动机也可以在其输出轮廓的更有效的部分运行,特别是在高输出负载的情况下,例如在越野或其他困难的地形上),或 以低速移动。

    Throttle valve for use in a gas turbine engine fuel control system
    2.
    发明授权
    Throttle valve for use in a gas turbine engine fuel control system 失效
    节气门用于燃气轮机发动机燃油控制系统

    公开(公告)号:US4154425A

    公开(公告)日:1979-05-15

    申请号:US658533

    申请日:1976-02-17

    申请人: Trevor S. Smith

    发明人: Trevor S. Smith

    IPC分类号: F16K31/53 H02P5/695 F16K31/04

    摘要: A throttle valve has a control member which is angularly positioned by two stepper motors which drive the control member through differential gearing. The drives to the control member are arranged so that a single step displacement of the respective motors in the same direction drives the control member by different amounts in opposite directions, providing a high resolution drive. The control member may be driven at a high speed by reversing one of the motors.

    摘要翻译: 节流阀具有控制构件,其通过两个步进电机成角度地定位,所述两个步进电动机通过差速齿轮驱动控制构件。 控制构件的驱动器被布置成使得相同方向上的各个电动机的单步位移沿相反方向驱动控制构件的不同量,从而提供高分辨率驱动。 可以通过反转一个电动机来高速地驱动控制构件。

    Electric drive management system and method
    6.
    发明授权
    Electric drive management system and method 失效
    电驱动管理系统及方法

    公开(公告)号:US06882918B2

    公开(公告)日:2005-04-19

    申请号:US10230257

    申请日:2002-08-29

    IPC分类号: B23Q15/00 H02P5/695 G06F7/00

    CPC分类号: H02P5/695

    摘要: A system is provided for controlling a work machine, including an electric continuously variable transmission. The system includes a microprocessor, wherein the microprocessor is configured to include a state machine for controlling the behavior of a work machine. The state machine includes a set of states representing possible conditions the work machine may encounter between starting at a zero energy input and being ready to work.

    摘要翻译: 提供一种用于控制作业机器的系统,包括电动无级变速器。 该系统包括微处理器,其中微处理器被配置为包括用于控制作业机器的行为的状态机。 状态机包括一组状态,表示在零能量输入开始并准备工作之间工作机器可能遇到的可能状况。

    Actuators
    8.
    发明授权
    Actuators 失效
    执行器

    公开(公告)号:US4289996A

    公开(公告)日:1981-09-15

    申请号:US937820

    申请日:1978-08-29

    IPC分类号: H02P5/695 H02P1/54

    摘要: A powered linear actuator is provided primarily for releasing stores from aircraft, having dual closed loop servo motor systems driving a screw jack. The dual motors, which have samarium cobalt permanent magnets, drive the screw jack through differential gearing and each has an armature lock which functions automatically if a motor circuit fails thereby enabling the other motor to continue driving the actuator alone. Potentiometer feedback is applied to dual error amplifiers or polarized relays that compare the feedback position signal with the input command signal and drive separate motor energization channels. A replaceable plug-in resistor is provided in series with the potentiometer track so that the actuator stroke can readily be changed by changing one value plug-in resistor for another.

    摘要翻译: 提供动力线性致动器主要用于从飞行器释放存储器,具有驱动螺旋千斤顶的双闭环伺服电动机系统。 具有钐钴永磁体的双电动机通过差速齿轮驱动螺旋千斤顶,并且每个电动机具有如果电动机电路故障而自动起作用的电枢锁,从而使另一个电动机能够继续单独驱动致动器。 电位计反馈应用于双误差放大器或极化继电器,将反馈位置信号与输入指令信号进行比较,并驱动单独的电机通电通道。 可更换的插入式电阻器与电位器轨道串联提供,以便通过更改一个值插入式电阻器来轻松更改执行器行程。