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    • 113. 发明公开
    • ENGINE UNIT AND VEHICLE
    • 发动机组和车辆
    • EP3064762A1
    • 2016-09-07
    • EP14870978.5
    • 2014-12-18
    • Yamaha Hatsudoki Kabushiki Kaisha
    • NISHIKAWA, TakahiroHINO, Haruyoshi
    • F02N11/08F02D17/00F02D29/02F02N15/00
    • F02N11/08F02D29/02F02N11/04F02N19/005F02N2011/0896F02N2019/008F02N2200/022F02N2250/04F02N2300/10H02K7/14H02K11/048H02K21/22H02K29/12H02P21/32
    • The present invention provides an engine unit, or the like, capable of achieving improved mountability to vehicle. The engine unit includes: a four-stroke engine body having a high-load region and a low-load region; a three-phase brushless motor that starts the four-stroke engine body and generates power after starting the four-stroke engine body; an inverter including a plurality of switching parts; and a control device. The control device is configured to: while a crankshaft is in forward rotation after a combustion operation of the four-stroke engine body is stopped, control the plurality of switching parts such that a resistance is applied to the forward rotation of the crankshaft by the three-phase brushless motor, forcing the crankshaft to stop in a compression stroke of the four-stroke engine body; and in response to reception of a start instruction under a state where the crankshaft is stopped, direct the three-phase brushless motor to start forward rotation of the crankshaft from a position where the crankshaft is stopped in the compression stroke.
    • 本发明提供了一种能够实现改进的车辆可安装性的发动机单元等。 发动机单元包括:具有高负载区域和低负载区域的四冲程发动机主体; 三相无刷电动机,其启动四冲程发动机本体并在启动四冲程发动机本体后发电; 包括多个开关部件的逆变器; 和控制装置。 控制装置构成为,在四冲程发动机体的燃烧运转停止后曲轴处于正转状态的期间,控制多个切换部,使曲轴正转时的阻力为三 迫使曲轴在四冲程发动机机体的压缩冲程中停止; 并且响应于在曲轴停止的状态下接收到启动指令,指示三相无刷电动机从曲轴在压缩冲程中停止的位置开始正向旋转曲轴。
    • 114. 发明公开
    • METHOD AND SYSTEM FOR DETERMINING THE POSITION OF A SYNCHRONOUS MOTOR'S ROTOR
    • VERFAHREN UND系统ZUR BESTIMMUNG DER位置EINES同步电机
    • EP2959573A2
    • 2015-12-30
    • EP14708421.4
    • 2014-02-20
    • Microchip Technology Incorporated
    • HILL, Martin
    • H02P6/18
    • H02P6/186H02K29/12H02P6/185H02P6/22H02P21/0085H02P21/18H02P21/32H02P2203/03
    • To establish an initial/resting position of a permanent magnet rotor, all motor stator windings are stimulated (voltage applied thereto) in sequence, the time it takes for current in the stimulated stator winding to rise to a specific current value is measured for each stator winding and these time measurement results processed. From the measured time results rotor position to within 60 degrees is determined and the position sector is known prior to starting/rotating the motor. Once the rotor position is known, the next commutation point in a six step sequence is known before actually starting/rotating the motor. Position measurement winding stimulation may be interleaved with commutation pulses, or the unexcited stator winding may be stimulated between commutation pulses to the other two excited stator, wherein one of the two stator windings remains connected to the power and provides a current return path to the unexcited but stimulated stator winding.
    • 为了建立永磁转子的初始/静止位置,所有电动机定子绕组按顺序被激励(施加到其上的电压),对于每个定子测量受激定子绕组中的电流上升到特定电流值所需的时间 绕组和这些时间测量结果处理。 从测量的时间结果可以确定转子位置到60度以内,并且在启动/旋转电机之前已知位置扇区。 一旦知道转子位置,在实际启动/旋转电机之前,已知六步序列中的下一个换向点。 位置测量绕组刺激可以与换向脉冲交错,或者可以在到另外两个激励的定子的换向脉冲之间刺激未激励的定子绕组,其中两个定子绕组中的一个保持连接到电力并且提供到未激励的电流返回路径 但激励定子绕组。
    • 115. 发明公开
    • DRIVE CIRCUIT FOR BRUSHLESS DC MOTOR
    • ANSTEUERSCHALTUNGFÜRBÜRSTENLOSENGLEICHSTROMMOTOR
    • EP2955840A1
    • 2015-12-16
    • EP14731896.8
    • 2014-04-15
    • Kokusai Display Kogyo Co., Ltd.
    • ITO, Reijiro
    • H02P6/16
    • H02P6/20H02K11/28H02K11/33H02K21/14H02K21/24H02K29/12H02P1/46H02P6/182
    • To provide a brushless DC motor drive circuit operating with low electric power without a hall element, etc., and to provide a drive circuit for brushless DC motor which may be generally started regardless of an amount of load or size of inertia moment.
      The drive circuit comprises a two-stage amplifying circuit comprised of transistors 13 and 14 for switching and amplifying a drive current to drive coils 11; a detecting coil 15 disposed together with the drive coils in a magnetic field of permanent magnets in a rotor, and connected to a base of the transistor 14 at one end; and a diode connected in series with the other end of the detecting coil 15 and provided between the base and an emitter of the transistor 14, wherein the diode controls and adjusts a base current of the transistor 14 such that the transistor 14 is turned on when induced electromotive force generated in the detecting coil 15 is a reverse voltage, and such that the transistor 14 is turned off when the induced electromotive force of the detecting coil 15 is a forward voltage.
    • 提供无霍尔元件等的低功率无刷直流电动机驱动电路,提供无刷直流电动机的驱动电路,无论负载量或惯性力矩大小如何,均可开始进行。 驱动电路包括由用于切换和放大驱动线圈11的驱动电流的晶体管13和14组成的两级放大电路; 检测线圈15,其与驱动线圈一起设置在转子的永久磁铁的磁场中,并且在一端与晶体管14的基极连接; 以及二极管,与检测线圈15的另一端串联连接并设置在晶体管14的基极和发射极之间,其中二极管控制并调节晶体管14的基极电流,使晶体管14导通, 在检测线圈15中产生的感应电动势是反向电压,并且当检测线圈15的感应电动势为正向电压时,晶体管14截止。
    • 118. 发明公开
    • Permanent magnet type rotary electric machine
    • 永磁电动机
    • EP2264858A2
    • 2010-12-22
    • EP10163082.0
    • 2010-05-18
    • Mitsubishi Electric Corporation
    • Morita, YusukeNakano, MasatsuguKawasaki, Sachiko
    • H02K1/14H02K1/27H02K21/00
    • H02K1/146H02K1/223H02K21/14H02K21/16H02K29/06H02K29/12H02K2213/03
    • Provided is a permanent magnet type motor including: a rotor including a rotor core (3) and a plurality of permanent magnets (4); a conducting circuit including a first electric conductor (6) extending in an axial direction of the rotor and being disposed between permanent magnets (4) in a circumferential direction of the rotor and a second electric conductor (8) for connecting the first electric conductors electrically; and a stator disposed so as to be opposed to the rotor, including a stator core (1) and an armature winding (2). A rotation angle is detected by measuring current flowing in the armature winding (2). The stator core (1) is formed to have a shape in which, a slot pitch is defined by ρs = (2×π×Rs)/Ns, where an inner radius of the stator is represented by Rs and a number of slots is represented by Ns, a value Wsn obtained by dividing a slot opening width Ws by the slot pitch ρs satisfies "0.08 ≤ Wsn".
    • 提供一种永磁式电动机,其包括:转子,包括转子铁心(3)和多个永磁体(4); 导体电路,包括沿着转子的轴向延伸并且沿着转子的圆周方向设置在永久磁体(4)之间的第一导电体(6)和用于将第一导电体电连接的第二导电体(8) ; 以及与所述转子相对设置的定子,包括定子铁芯(1)和电枢绕组(2)。 通过测量在电枢绕组(2)中流动的电流来检测旋转角度。 定子铁芯(1)形成为具有这样的形状,其中槽间距由Ás=(2ס×Rs)/ Ns定义,其中定子的内半径由Rs表示,并且槽数为 通过用Ns表示,通过将槽开口宽度Ws除以槽间距而获得的值Wsn满足“0.08‰¤Wsn”。