Method of controlling an electronically commutatable motor
    1.
    发明授权
    Method of controlling an electronically commutatable motor 有权
    电子可换向电机的控制方法

    公开(公告)号:US06775469B1

    公开(公告)日:2004-08-10

    申请号:US10111489

    申请日:2002-08-27

    IPC分类号: H02P534

    CPC分类号: H02P6/14

    摘要: An electronically commutatable motor having field windings activatable in sequence with a commutation frequency via semiconductor output stages using control signals connectable and disconnectable from a direct voltage supply, the control signals being clocked using pulse width modulation. Noise generation from connection and disconnection of the current applied to field windings is minimized by flattening of the rising and/or falling edges of the current in the field windings. The pulse width ratio increases in the rising edges of the control signals from a low initial value to an operating value assigned to the setpoint as a function of a selected setpoint for the motor speed or output, and, in the falling edges of the control signals, the pulse width ratio starts from the existing operating value and is reduced to a lower final turn-off value as a function of the existing actual value of the speed or the output of the motor.

    摘要翻译: 一种电子可换向电动机,其具有通过可连接并可与直接电压源断开的控制信号通过半导体输出级可顺序地通过换向频率激活的场绕组,所述控制信号使用脉宽调制进行计时。 通过使励磁绕组中的电流的上升沿和/或下降沿平坦化,使得施加到励磁绕组的电流的连接和断开产生的噪声最小化。 脉冲宽度比在控制信号的上升沿从低初始值增加到分配给设定值的操作值作为电机速度或输出的选定设定值的函数,并且在控制信号的下降沿 ,脉冲宽度比从现有的运行值开始,并根据电机的速度或输出的现有实际值而减小到较低的最终关断值。

    Method for starting a sensor- and brushless d.c. motor
    2.
    发明授权
    Method for starting a sensor- and brushless d.c. motor 有权
    启动传感器和无刷直流电压的方法 发动机

    公开(公告)号:US06741046B1

    公开(公告)日:2004-05-25

    申请号:US10130147

    申请日:2002-09-19

    IPC分类号: H02K2300

    CPC分类号: H02P6/22

    摘要: A method is for starting a sensorless and brushless direct current motor, the stator windings of which are supplied with power from a multiphase converter circuit. For starting the motor, it is first rotated into a defined starting position in an alignment operation through simultaneous energization of at least two phases. Then in a second phase, an energization state of the stator windings which is in the desired direction of rotation and provides sufficient torque is initiated, whereupon then the additional energization states of the corresponding phases follow cyclically, and the rotor is rotated in synchronization with the applied stator rotational field. The motor may be used in a motor vehicle and supplied with the battery voltage at the input terminals. In an example embodiment, the current supplied in the alignment is adjusted according to the battery voltage, and in addition, it is increased according to a specified waveform. This ensures reliable and rapid rotation without overshooting into the starting position.

    摘要翻译: 一种用于启动无传感器和无刷直流电动机的方法,其定子绕组由多相转换器电路供电。 为了起动电动机,首先通过至少两相的同时通电来首先在对准操作中旋转到限定的起始位置。 然后在第二阶段中,启动处于期望的旋转方向并提供足够的转矩的定子绕组的通电状态,然后相应相位的附加通电状态循环地跟随,并且转子与 施加定子旋转场。 马达可用于机动车辆,并在输入端子处提供电池电压。 在一个示例性实施例中,根据电池电压调整对准中提供的电流,并且根据指定的波形增加。 这确保了可靠且快速的旋转,而不会超过起始位置。

    Method and device for controlling an electronically commutated polyphase D.C. motor
    3.
    发明授权
    Method and device for controlling an electronically commutated polyphase D.C. motor 失效
    用于控制电子换向多相直流电动机的方法和装置

    公开(公告)号:US06429614B1

    公开(公告)日:2002-08-06

    申请号:US09673037

    申请日:2001-01-04

    IPC分类号: H02P622

    CPC分类号: H02P6/14 H02P6/22

    摘要: A device and method for driving a polyphase DC motor, in which a phase selector circuit, in each case, selects only one phase, which is fed to a commutation detection circuit. After each commutation detected by a commutation detection circuit, as a result of a pulse of constant duration generated by a monoflop, the phase discriminator circuit and, as a consequence, the commutation logic are advanced in a fixed and preestablished sequence. This occurs irrespective of the rotation direction of the motor using the sequential logic device embodied by the commutation logic. When the motor rotates in the preferred direction, constant current-flow angles of 120° are achieved for each phase. When the motor rotates in the reverse direction, markedly varying current-flow angles of the individual phases are generated, and these varying current-flow angles, as a function of the course of the specifically corresponding voltages induced in the individual phases, result in a counter-torque. This counter-torque causes a braking of the motor to a standstill and a reliable startup in the preferred direction. The exemplary electronics, in this context, do not distinguish between the two rotation directions so that no additional electronics expense is required to reliably startup from a reverse rotation condition.

    摘要翻译: 一种用于驱动多相直流电动机的装置和方法,其中相位选择器电路在每种情况下仅选择馈送到换向检测电路的一个相位。 在由换向检测电路检测到的每次换向之后,作为由单波形产生的恒定持续时间的脉冲的结果,相位鉴别器电路,并且因此,换向逻辑以固定和预先建立的顺序前进。 无论使用由换向逻辑体现的顺序逻辑装置的电动机的旋转方向如何,都会发生这种情况。 当电机沿优选方向旋转时,每相达到120°的恒定电流流动角。 当电动机沿相反方向旋转时,产生各个相的电流流动角度的明显变化,并且这些变化的电流流动角度作为在各个相中诱发的具体对应电压的过程的函数,导致 反扭矩。 该逆转矩使得电动机的制动停止,并且在优选方向上可靠启动。 在这种情况下,示例性电子设备不区分两个旋转方向,使得不需要额外的电子费用来可靠地从反向旋转状态启动。

    Electronically switchable motor with overload protection
    4.
    发明授权
    Electronically switchable motor with overload protection 有权
    具有过载保护功能的电子可切换电机

    公开(公告)号:US06882122B1

    公开(公告)日:2005-04-19

    申请号:US10088270

    申请日:2000-09-06

    摘要: Electronically commutable motor whose output stages are controllable by an electronic control unit, using PWM control signals, and are feedable from a supply voltage source. A limitation to a maximum load with overload protection is achieved, at least upon exceeding the nominal voltage of the motor, by reducing the pulse width of the PWM control signals for the output stages to a width that prevents overloading of the motor and electronic components by limiting the motor output, as a function of the magnitude of the supply voltage and the specified setpoint for the PWM control signals.

    摘要翻译: 电子换向电动机,其输出级由电子控制单元控制,使用PWM控制信号,并且可从电源电压源馈送。 通过将输出级的PWM控制信号的脉冲宽度减小到防止电动机和电子部件过载的宽度,至少在超过电动机额定电压的情况下,实现对过载保护的最大负载的限制 根据电源电压的大小和PWM控制信号的指定设定值来限制电机输出。

    Electronically commutatable motor comprising an electronic control unit
    5.
    发明授权
    Electronically commutatable motor comprising an electronic control unit 失效
    电子换向电动机,其包括电子控制单元

    公开(公告)号:US06696804B1

    公开(公告)日:2004-02-24

    申请号:US10088462

    申请日:2002-07-29

    IPC分类号: H02P620

    摘要: An electronically commutatable motor is disclosed, whose field windings are controllable via electronic control unit using PWM control signals via semiconductor output stages, a setpoint being selectable for the control unit and the control unit outputting corresponding PWM control signals to the semiconductor output stages. In order to recognize malfunctions which could result in overload of the motor and the electronic components thereof even in the acceleration phase and to be capable of using this to protect against overload, after selection of the setpoint and/or switching on of the control unit and/or the semiconductor output stages, the control unit outputs ramp-type speed-increasing PWM control signals to the semiconductor output stages during a selected or selectable acceleration time until the final control of the semiconductor output stages corresponding to the setpoint is reached, during the acceleration time a setpoint speed corresponding to the PWM control signals may be compared with the detected actual speed of the motor, and, in the event of deviations of the actual speed from the setpoint speed by a selected or selectable speed deviation, the control unit and/or the semiconductor output stages may be switched off.

    摘要翻译: 公开了一种电子可换向电动机,其励磁绕组可通过使用经由半导体输出级的PWM控制信号的电子控制单元来控制,控制单元可选择的设定点和向半导体输出级输出相应的PWM控制信号的控制单元。 为了识别可能导致马达及其电子部件甚至在加速阶段过载并且能够使用它来防止过载的故障,在选择设定点和/或接通控制单元之后,以及 /或半导体输出级,控制单元在所选择或可选择的加速时间期间将斜坡式增速PWM控制信号输出到半导体输出级,直到达到对应于设定点的半导体输出级的最终控制 可以将对应于PWM控制信号的设定速度的加速时间与检测到的电动机的实际速度进行比较,并且在实际速度与设定点速度偏离所选择的或可选择的速度偏差的情况下,控制单元和 /或半导体输出级可以被切断。

    Method for shifting the instant of commutation for a sensorless and brushless direct-current motor as well as a system for implementing the method
    6.
    发明授权
    Method for shifting the instant of commutation for a sensorless and brushless direct-current motor as well as a system for implementing the method 失效
    一种用于无传感器和无刷直流电机的换相时刻的方法以及用于实现该方法的系统

    公开(公告)号:US06717380B1

    公开(公告)日:2004-04-06

    申请号:US09889418

    申请日:2001-11-20

    IPC分类号: H02P308

    CPC分类号: H02P6/10 H02P6/15

    摘要: The present invention provides a method for shifting the instant of commutation for a sensorless and brushless direct-current motor (1), whose stator windings are fed by a multi-phase converter connection. The converter connection includes an output stage control (2), a commutation logic (3), a phase selector (4), and phase discriminator (5). A commutation detection (6) is supplied at one input (46) with the instantaneous value of the voltage induced in a phase, the instantaneous value being determined by the phase selector, and at a second input (47), with a reference voltage (Uref) for comparison. The reference voltage (Uref) can be changed by a commutation shift (7) in correspondence with a specific characteristic curve (71). A manipulated variable (Ust) is supplied by a manipulated-variable calculation (8) to the commutation shift (7) as a function of the setpoint speed (Nsetpoint) of the motor. The commutation shift takes place in an advantageous manner in a parabola shape. As a result of the setpoint value-dependent commutation shift, a high torque is provided also in the case of high rotational speeds and a heavy load, and the torque ripple is kept to a minimum.

    摘要翻译: 本发明提供了一种用于无定影和无刷直流电动机(1)的换向时刻的方法,其中定子绕组由多相转换器连接馈电。 转换器连接包括输出级控制(2),换向逻辑(3),相位选择器(4)和鉴相器(5)。 在一个输入端(46),在一个输入端(46)提供一个相位感应电压的瞬时值,瞬时值由相位选择器确定的第二输入端(47)和一个参考电压( Uref)进行比较。 参考电压(Uref)可以根据特定曲线(71)改变换向位移(7)。 操作变量(Ust)通过操作变量计算(8)作为电动机的设定点速度(Nsetpoint)的函数提供给换向位移(7)。 换向换档以抛物线形状的有利方式进行。 作为设定点值相关的换向移位的结果,在高转速和大负载的情况下也提供高扭矩,并且扭矩波动保持最小。

    Heating and ventilating system for the occupant compartment of a motor
vehicle
    7.
    发明授权
    Heating and ventilating system for the occupant compartment of a motor vehicle 失效
    机动车乘客舱的加热通风系统

    公开(公告)号:US4531671A

    公开(公告)日:1985-07-30

    申请号:US627181

    申请日:1984-07-02

    申请人: Wolfgang Schwenk

    发明人: Wolfgang Schwenk

    IPC分类号: B60H1/00 B60H1/02

    摘要: A heating and ventilation apparatus for motor vehicles has a fan, a hot air channel passing over a heat exchanger, a cold air bypass, a mixing chamber, controllable valves, and ventilation or air outlet jets, wherein air streams with different temperatures are conducted in channels adjacent to each other and an opening closable by a valve flap is provided between the adjacent channels. The valve flap is controllable in dependence on the flow rate prevailing in a first channel, in such a way that the valve flap is opened to an increasing extent with increasing flow rate, so that as the flow rate increases in the first channel, air can overflow from a second channel into the first channel to an increasing extent. This allows an automatic increase in temperature of the ventilation air on setting the heating, and avoids flow of cold air back into the mixing chamber.

    摘要翻译: 用于机动车辆的加热和通风装置具有风扇,通过热交换器的热空气通道,冷空气旁路,混合室,可控阀和通风或空气出口喷嘴,其中具有不同温度的空气流在 彼此相邻的通道和在相邻通道之间设置由阀瓣关闭的开口。 阀瓣可根据第一通道中流动的流速进行控制,使得阀瓣随着流量的增加而逐渐打开,从而当第一通道的流量增加时,空气罐 从第二通道溢出到第一通道的程度越来越大。 这允许在设定加热时自动增加通风空气的温度,并且避免冷空气流回到混合室中。

    Electronically commutable motor
    8.
    发明授权
    Electronically commutable motor 失效
    电子换向电机

    公开(公告)号:US06690129B1

    公开(公告)日:2004-02-10

    申请号:US10088272

    申请日:2002-03-12

    IPC分类号: H02P620

    摘要: An electronically commutatable motor, whose excitation windings are controllable via semiconductor output stages by an electronic control unit with the aid of PWM control signals, a setpoint value being specifiable to the control unit, and the control unit emitting corresponding PWM control signals to the semiconductor output stages. The start-up of the motor is monitored in a simple manner and an overloading is prevented in that, with the input of the setpoint value and/or the switching on of the control unit and/or the semiconductor output stages, after a predefined or predefinable starting time has expired, a monitoring device monitors the speed of the motor to check whether a minimum speed has been reached, and if the minimum speed is not reached, the control unit and/or the semiconductor output stages is/are disconnectible.

    摘要翻译: 一种电子可换向电动机,其激励绕组借助于PWM控制信号由电子控制单元通过半导体输出级可控,设定值可指定给控制单元,以及控制单元向半导体输出发射相应的PWM控制信号 阶段 以简单的方式监测电动机的启动,并且防止了过载,因为在预定义的或预定义的情况下,通过输入设定值和/或控制单元和/或半导体输出级的接通, 可预定的启动时间已经到期,监视设备监视电动机的速度以检查是否已经达到最小速度,并且如果没有达到最小速度,则控制单元和/或半导体输出级可断开。

    Electric motor with a fan wheel, for forming an axial or radial fan
    9.
    发明授权
    Electric motor with a fan wheel, for forming an axial or radial fan 失效
    具有风扇轮的电动马达,用于形成轴向或径向风扇

    公开(公告)号:US06270320B1

    公开(公告)日:2001-08-07

    申请号:US09424341

    申请日:1999-11-22

    IPC分类号: F04B1700

    摘要: A motor with a fan wheel for forming an axial or radial fan, having a drive unit and a control unit that has a control housing. The drive unit has a stator, a rotor, and at least one electric coil, and the control unit has an electronic circuit for open- or closed-loop control of the supply of current to the coil. The drive unit and the control unit are formed by modules, and contact elements associated with one another are provided for mutual electrical connection.

    摘要翻译: 具有用于形成轴向或径向风扇的风扇叶轮的电动机,具有驱动单元和具有控制壳体的控制单元。 驱动单元具有定子,转子和至少一个电线圈,并且控制单元具有用于对线圈供电的开环或闭环控制的电子电路。 驱动单元和控制单元由模块形成,并且彼此相关联的接触元件被提供用于相互电连接。

    Electronically commutated motor
    10.
    发明授权
    Electronically commutated motor 失效
    电子换向电机

    公开(公告)号:US06713977B1

    公开(公告)日:2004-03-30

    申请号:US10088240

    申请日:2002-07-10

    IPC分类号: H02P308

    CPC分类号: H02P6/06

    摘要: An electronically commutatable motor, whose excitation windings are controllable via semiconductor output stages by an electronic control unit with the aid of PWM control signals, a setpoint value being specifiable to the control unit, and the control unit emitting corresponding PWM control signals to the semiconductor output stages; a motor characteristic curve, from which an assigned nominal operating speed is derivable for the setpoint value being stored in the control unit, and the derived nominal operating speed being able to be compared to the actual speed of the motor. It a predefinable or predefined speed difference between the nominal operating speed and the actual speed is exceeded, the control unit and/or the semiconductor output stages can be switched off. The derivation of the nominal operating speed for the predefined setpoint value is facilitated by a three-dimensional characteristics field determined by four coordinate points.

    摘要翻译: 一种电子可换向电动机,其激励绕组借助于PWM控制信号由电子控制单元通过半导体输出级可控,设定值可指定给控制单元,以及控制单元向半导体输出发射相应的PWM控制信号 阶段 一个电动机特性曲线,从而可以为存储在控制单元中的设定值导出指定的额定运行速度,并且可以将导出的标称运行速度与电动机的实际速度进行比较。 如果超过额定运行速度和实际速度之间的预定义或预定义的速度差,则可以关闭控制单元和/或半导体输出级。 通过由四个坐标点确定的三维特征场,促进了预定义设定值的标称运行速度的推导。