TWI244255B - Output control unit for synchronous generator - Google Patents

Abstract

Generated energy is to be increased while maintaining the engine revolution stable in a low revolution region. The number of revolutions of a rotor is detected by an engine speed decision unit 48, and when the engine speed is in a low revolution region, a retard energizing control is made for a rectifier 4 by a driver 46 to increase a field flux and thereby increase the generated energy. In response to a change in polarity in magnetic poles detected by rotor angle sensors 29 the driver 46 reads out a retard quantity stored in a retard quantity setting unit 49 and retard-energizes stator windings. A generator output voltage is controlled so as to be between a voltage control value VMax which is lower than a regulating voltage of a regulator and a voltage control value VMin.

Description

1244255 V. Description of the invention (1)

[Technical field to which the invention belongs J. The present invention relates to an output control device for a synchronous generator, which can increase the amount of power generated in a low-speed rotation area. The output control device. [Known Technology] Synchronous Generators for Motor Vehicles [Three-phase synchronous generators] The three-phase synchronous generators are used in vehicle power generation devices. The three-phase full-current converters are used to rectify the generated AC power for battery charging. In the three-phase synchronous generator disclosed in Kaiping No. 9-19194, an Echizen phase current flows in a stator coil, and an armature reaction caused by the Echizen phase x electricity ^ is used to increase a magnetic field flux, As a result, the output (generation voltage and output current) is increased. [Problems to be Solved by the Invention] A general generator is provided with a regulator to limit the output power so that the generated power does not exceed a specified value, and the function of the regulator is used to stop the power generation. When power generation is stopped, the engine will become unstable due to load fluctuations in the engine, especially in the low-speed rotation area. In addition, when the power generation is too large, friction in the low-speed rotation area increases the influence on the engine rotation. The purpose of the present invention is to provide a wheel-out control device for a synchronous generator. In a low rotation area, the engine rotation will not become unstable, and the electric power will be reduced. [Means for Solving the Problem] The first feature of the present invention for detecting the rotation of a rotor of a generator using the device to achieve the above-mentioned object is to have: a detection speed; an energizing device, and a stator line

\\ 312 \ 2d-code \ 90-12 \ 90l24920. Ptd f 5 pages 丄 244255 V. Description of the invention (2) The circle is energized with a delay angle, which is used to generate the above power; 上述 ί; Electricity generation of the motor; Harmony ": The delay angle of the seventh description is energized on: the output voltage is limited to the specified adjustment: the product Vorin is performed, and the through: the rotation speed of the rotor is a predetermined lower description of the adjustment electrical control, controlled at 2 In order to make the above-mentioned output voltage lower than the above according to the first feature, the voltage control value of the pre-second is allowed. The power generation output is increased. In addition, the coil is used to energize the delay angle, and the voltage is controlled at a ratio: this The delay angle energization is performed in the low-speed rotation area regulator ::: The control value of the voltage is low, so it is large. It can stably increase the power generation amount. In addition, the second special energization delay angle amount of the present invention is maintained. When the above-mentioned delay angle is energized in advance, it is used to output the above-mentioned wheel voltage ^ to change the energization effect ratio in this state. In addition, the third agent 1 of the present invention is at the above-mentioned predetermined voltage control value. 'When the above output; said voltage control value has a predetermined The above-mentioned energizing effect ratio is slightly reduced. When the soil reaches the maximum value of the range, the minimum value will be captured below the minimum value, so that the above: = output voltage drops to this range. The 2nd ~ 4th features are determined by the speed of the machine. The adjustment of the power generation amount is easy, and the timing of the f delay angle can be fixed, so [the embodiment of the invention] the accuracy of the adjustment. The present invention :: ^ is used to describe the embodiment of the present invention. Fig. 2 is a cross-sectional view of a generator that serves as both a starter and a starter. Fiber starter 'generator (hereinafter referred to as "ACG"), for example,

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Page 6! 244255 V. Description of the invention (3) 1. Automatic two-wheeler engine for turbine models. Two-phase coils (stator coils); and outer and / or stator 50, wound with 21 ends, and used to connect the stator 50 to the rotor housing 63 of the crankshaft 2 of the engine, Linked in crank two turns ·. The outer rotor 60 has a cup on the inner peripheral surface of the rotor case 63. The magnet, and magnet 62, are accommodated in the circumferential direction. "'Is configured to be installed along the rotor yoke outer rotor 60 so that the socket portion 60a is inclined at the front end of the mountain, and is bolted to the center of the crankshaft 201 ⑽ with a bolt 25 3 ^, and is threadedly engaged in the crank The bolt 2 53 penetrates the stator 50H portion of the socket portion on the inner peripheral side of the outer rotor 60. Configured 202. The outer rotor 60 is provided with bolts 279 and 279, which are fixed on the crank shaft box 282 and are arranged adjacent to the fan two fans. The radiator is covered by the fan cover 281 on the stator 50. A sensor housing 28 is inserted into the inner periphery of the mule 50, and the inner side of the 28 is outside the studs along the outer rotor 60, and the interval is equal to the second sensor (magnetic pole sensor) 29 and the pulse. Wave sense must ^ rotor angle :. The Qiaoshen sensor 29 is used to control the stator coils of the stator, and is set to correspond to the ACGiiU phase, ν phase, and w phase one by one. On the other hand, only one ignition pulse generator is used for engine point control. Both the rotor angle sensor 29 and the ignition pulse generator 30 may be constituted by a Hall IC or a magnetoresistive (MR) element. Leads of the rotor angle sensor 29 and the ignition pulse generator 30 are connected to the substrate 31, and a wire harness 32 is coupled to the substrate 31. On the outer periphery of the pillar 60 of the outer rotor 60: a two-stage magnetized magnet ring 33 is embedded, which can be used to apply magnetic effects to each of the rotor angle sensor 29 and the ignition pulse generator 30.

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Page 7 1244255 V. Description of the invention (4) The magnetization τ 'in one of the magnet rings 3 3 corresponding to the rotor angle sensor 29 is formed corresponding to the magnetic pole of the stator 50, and it is 3 ° in the circumferential direction. . N poles and S poles are arranged alternately in amplitude interval, and the magnetic tape is filled with a magnetic tape on the other side of the magnet ring 33 corresponding to the ignition pulse generator 30, at a position 15 in the circumferential direction. To 4 0. The range forms a magnetizing portion. The ACG1 with the above structure has the function of a synchronous motor at the time of starting, and is driven by the electric current supplied from the battery to rotate the crank shaft 201 to start the engine, and has the function of a synchronous generator after starting. The current charges the battery and supplies the current; ^ is a diagram of the electric two-wheeler electric / main / partial system with an output control device on the side. In the figure, the ECU3t is free of: the full-wave rectifier 4, which is used to rectify the three-phase AC generated by the two-to-two ^ 7; and the regulator 5, which uses = to limit the output to a predetermined regulated voltage (regulator moving engine, Pro / ·) In addition, the ECU 3 includes a power generation control unit 6 which is used to enable the private radar unit 6 to implement the CPU when the lead-in area and the K-rotation area (hereinafter referred to as the “power generation control area”) are used. \ Plus = control on the function. In addition. The generator control fire pulse generator 30 is connected to ECU3, rotor angle sensing 29 and point. Ignition coil is connected to ECUS] U3; its detection signal is input to the bracket. There are ignition plugs 22. In addition ,: U3 2 fire coil 21 secondary side connection sensor 24, sheet switch 22 = ^ flu detector 23, fuel 27, inspection from various parts: ^ Off 26 'and cooling water temperature sensor In addition, the number is input to ECU3. In addition, 5 ^ 113 is connected with start-up relay switches 36, 37, standby indication cry, 34, start-up switch 35, and stop port. 'Nine ,: material indicator 3 9, speed sensor _ ___ -------- 1 ϋ · ϊΐ draw_1 follow ___ I ί ΒβΒ ill \\ 312 \ 2d-code \ 90-12 \ 90124920.ptd Page 8 1244255 V. Description of the invention (5) _ 4 Two- and three-way two-way switch 41 'and front light Di. The headlight 42 is provided with a dimming unit for each of the electric power = 2: ′ ′ is supplied via the main fuse 44 and the main switch 45, and the other 44 is connected to the EClj3. The power generation control unit 6 is operated by the main switch 45 only through the main fuse. In addition to the normal power, the power generation system 1 according to the present invention and the right power system 1 (voltage) power system "), for the above / Electric energy / is referred to as "ACG energization control from the delay angle of the battery 2 energization of the bamboo shoots.]: Two: the coil 'increased to refer to the stator line garden / ", where the delay angle energization is The above-mentioned charging tape 33 ^ I Γ is a detection signal when the magnetic pole of 33 is changed from the above-mentioned rotor angle sensor 29.], Taguchi 伙 knife. However, in order to prevent the ^ The output voltage (battery voltage) γ of the full-wave rectifier 4 is made ^ is converged within a predetermined voltage range below the adjusted voltage. It is made as shown in the Γ chart ^

^, The area with a winter speed of 1 0 0 rPm ~ 3500 rpm # = $ A = electric control area • In this low-speed rotation area, the power generation current (acg input *) using two mAcGi is extremely small. Among them, in the power generation v: area, ACG power-on control is used to increase the power generation current. Increasing part = when two delay angles are energized. " When the power generation amount Ί is doubled, even in a low-speed rotation area, it can be ten: Current 2: equivalent power generation amount. / 、 々 牦

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Fig. 5 shows the change of the battery voltage in the retarded power generation region. In this figure, the battery voltage Vb is controlled at an ACG control voltage range specified by a control voltage maximum & VMax and a control voltage minimum value VMin set to a regulation voltage (14 · 5v) or less. In essence, the delay angle of the energization of the stator coil is 'a fixed value (for example, an electrical angle of 60 °), so that the energization of the full-wave rectifier 4 is increased and decreased by Rima,' which is used to control the battery voltage V b within the ac G control voltage range. . That is, when the battery voltage vb reaches the control voltage maximum value VMax, the energization ratio is reduced by a predetermined small value (for example, 丨%), and when the battery voltage Vb lowers the minimum voltage value VM 1 η, the energization effect ratio is increased Larger this tiny value. work

Figure 1 is a block diagram showing the main functions of the ACG energization control device. In the figure, the full-wave rectifier 4 has FETs (typically solid switching elements) 4a, 4c, 4c, 4d, 4e, and 4f connected to the stator coils 1U, IV, and 1W of ACG 丨. The driver 46 switches Ding to FET4f to drive ACG1, which is a synchronous motor, for rotating the crank shaft 201 described above. On the other hand, after the engine starts,

On the contrary, the engine is used to drive the outer rotor to perform the function of a synchronous generator. Therefore, the FETs 4a to 4f are used to rectify the power generation and alternating current, thereby supplying power to the battery 2 and electricity, and the load 47. In addition, in the power generation using the engine, especially when the engine is rotating at a low speed, in accordance with the present invention, the delay angle of the stator coil is controlled in accordance with the present invention, and the drive 46 is used to control 1? In addition, the delay angle energization control will be described later with reference to FIG. 7. / The engine speed determination unit 48, for example, based on the detection signal of the ignition pulse generator 30 and the frequency signal of the power generation voltage, etc.

1244255 V. Description of the invention (7) When the delay angle refers to the instruction, the delay is read from the delay ', and it is used for # 2 9 to detect that the magnetic field is equivalent to the rising signal delay angle of the outer rotor 6 0 being 0 N. When the minimum engine speed at which the predetermined voltage control voltage VM in action ratio setting range is set in the control range described above is in a predetermined power generation control region, the engine speed is supplied to the driver 46. The driver 46 reads out the preset energization delay amount in the response delay angle delay angle, and the delay angle energization. The energizing effect ratio is supplied to the driver 46 from the effect ratio setting section 51. The driver 46 senses the pole detection signal using the rotor angle, that is, each time the sensor 29 detects the charging of the magnetic ring 33 corresponding to the magnetic pole, it detects the number. Then, the delay and energization delay portions from the rise of this signal are output to the FETs 4a to 4f as PWM control signals. In the battery voltage discriminating unit 52, the battery voltage vb is compared with the above-mentioned control voltage maximum value and control power in the range of use, and based on the comparison result, the increase or decrease is set to a power-on effect ratio of 51, which is used to compare the battery voltage Vb converges around 0

Fig. 6 is a flowchart showing the processing of the above-mentioned output control device. In this figure, in step S1, it is determined whether the engine speed is present in the power generation control region. As described above, the power generation control region is set to, for example, 10 rpm or more and 350 rpm or less. If the engine speed exists in the power generation control area, it proceeds to step S2 to determine whether the flag F A C G indicating that the engine speed exists in the power generation control area is set (zz 1). If the flag f a c G is not set, the process proceeds to step S3, and the flag FACG is set (it becomes "1"). If the flag FACG is set, the process proceeds to step S4, and the predetermined value acgagl is set as the energization delay angle amount acgagl. The predetermined value ACGAGL can be appropriately set in advance. In this embodiment, for example, the electrical angle is 60 °. . Then in

\\ 3l2 \ 2d-code \ 90-12 \ 90124920.ptd Page 11 1244255 V. Description of the invention (8) Step S5 sets the initial value ACDUTY to the energizing effect ratio acduty. The above-mentioned initial value ACDUTY may be appropriately set in advance, and in this embodiment, it is 40%, for example. If steps s 3 to S 5 are completed, proceed to step s 7. When the processing result of step a S 2 described above is affirmative, steps $ 3 to s 5 are skipped, and the process proceeds directly to step S 7. In addition, when the engine speed does not exist in the above-mentioned power generation control region, the flag FACG (= 0) is reset in step S6 and then the process proceeds to step S7. In step S7, it is determined whether the flag FACG is set. If the flag FACG is set (= 1), it is determined in step S8 whether the battery voltage Vb is equal to or greater than the maximum control voltage VMax. The maximum control voltage VMax is lower than the regulation voltage, for example, it is set to 13.5 volts. If the battery voltage is not higher than the maximum control voltage VMax, the process proceeds to step 89 to determine whether the battery voltage is lower than the minimum control voltage VM i η. The minimum value of the control voltage-n is set at, for example, 1 3 · 0 volts. In step s9, when the battery voltage Vb is equal to or less than the minimum control voltage VMm, it is determined that the ACG energization voltage range is lower than the regulator's adjustment voltage, and then the process proceeds to step S10. According to the above-mentioned energization delay angle acgagl ACG energization control is performed in comparison with acduty. When it is determined in step S8 that the battery voltage vb is the maximum value of the control voltage or more, the process proceeds to step S11 to reduce the energizing effect ratio acduty by a minute value DDUTY. The minute value DDUTY is, for example, 1%. In addition, when in step If the battery voltage vb is less than the minimum control voltage VMin, proceed to step S12 to increase the energization effect ratio by a small value DDUTY. After the processes of steps 311 and S12, proceed to step S10. In addition, the energization effect ratio is

1244255 V. Description of the invention (10) The value can be controlled according to the general negative feedback control method, such as proportional, differential, integral and so on. [Effects of the invention] As can be understood from the above description, according to items 1 to 4 of the scope of patent application of the present invention, in the low-speed rotation region, the normal voltage regulator is not operated, and the power generation amount can be stably increased. Therefore, when it is applied to a generator for a vehicle that uses an engine to drive a rotor, during idling, changes in engine load are small, so that changes in engine rotation can be made small, thereby stably performing idling. In addition, according to items 2 to 4 of the patent application scope of the present invention, since the timing of the delay angle is fixed at a preset value, the power generation amount can be easily adjusted with a simple structure, and the accuracy of the adjustment can be improved. [Explanation of component number]

1 ACG 1W Stator coil IV Stator coil 1U Stator coil 2 Battery 3 ECU 4 Full-wave rectifier 4a FET 4b FET 4 c FET 4d FET

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4e FET

4f FET 5 Regulator 6 Power generation control unit 21 Ignition coil 2 2 Ignition plug 2 3 Flu sensor 24 Fuel sensor 25 Leaf switch 2 6 Idling switch 2 7 Cooling water temperature sensor 28 Sensor housing 29 Rotor Angle sensor 30 Pulse sensor (Ignition pulse generator) 31 Substrate 32 Wiring 33 Magnet ring 34 Start relay 35 Start switch 36 Stop switch 37 Stop switch 38 Standby indicator 39 Fuel indicator 40 Speed sensor

\\ 312 \ 2d-code \ 90-12 \ 90124920.ptd Page 15 1244255 V. Description of the invention (12) 41 Automatic two-way switch 42 Headlight 43 Dimming switch 44 Main fuse 45 Main switch 4 6 Driver 47 Electric Device load 48 Engine speed determination section 49 Delay angle amount setting section 50 Stator 51 setting section 5 2 Battery voltage determination section 60 Outer rotor 60a Seat section 6 2 Magnet 63 Rotor housing 201 Crank shaft 2 0 2 Crank shaft box 2 4 6 Bolt 2 5 3 bolt 2 7 9 bolt 28 0 fan 281 fan cover 2 8 2 radiator

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Vb Battery voltage T Current angle Page 17 C: \ 2D-CQDE \ 90-12 \ 90124920.ptd 1244255 Brief description of the drawing Figure 1 is a block diagram showing the main part of an output control device according to an embodiment of the present invention Share function. Fig. 2 is a sectional view of a generator that also serves as a starter according to an embodiment of the present invention. Fig. 3 is a system diagram of a main part of an electric motorcycle having the output control device of the present invention. FIG. 4 shows the relationship between the engine speed and the generation current during ACG energization control. FIG. 5 shows the change of the battery voltage in the retardation angle power generation region. Fig. 6 is a flowchart showing the processing of the output control device. Figure 7 shows the timing of the loose coil current of the stator coil and the output of the rotor angle sensor during ACG energization control. Fig. 8 is a table of energizing action ratios with engine speed as a parameter.

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Claims (1)

1244255 6. Scope of patent application1. A kind of magnet for generating magnetic field magnetic flux generating & manufacturing device of a synchronous generator " has: the rotor " is provided with a stator coil; its characteristic date " The detection device is used to detect 2. It is equipped with: a current-carrying device that rotates the rotation speed of the rotor of the above-mentioned stator; a delay angle energization of the thunderbolt coil of the above-mentioned generator is used to increase the regulator and is used to adjust the voltage; ^ The output voltage of the motor is limited to the specified delay angle. The energization is performed in the above range, and the rotation speed of the energization control element is a predetermined low speed region adjustment voltage, and the control is performed at a predetermined level. The above output voltage is lower than the above. 2. The attitude control value of item i in the scope of patent application. In the above-mentioned delay angle, the electric power is synchronized, and the output control device is energized when the state changes. The specific ratio is maintained at the predetermined voltage control value as described above. The power output of the wheel 3 mentioned above, please request that the above-mentioned voltage control value of the synchronous power generator of the second item of the patent scope has a predetermined output. When the output voltage of the A-JJ reaches the maximum value of this range, Reduce the above mentioned ^ ς ^, and when the above-mentioned output voltage drops to the minimum value of the range, the above-mentioned energizing effect ratio is slightly increased. At the following time, 4: Synchronous power generation of the second or third item of the profit range J: The above-mentioned power-on effect is higher than that of the above-mentioned generator ^: