JPS6161930A - Engine torque fluctuation controller - Google Patents

Abstract

PURPOSE:To suppress fluctuation of torque effectively by functioning a generator or an electric driver synchronously with periodic fluctuation of engine torque thereby reducing reverse torque to be applied through the generator under heavy load of engine. CONSTITUTION:Two kind of rotary side electromagnetic coils 8, 9 and a magnetic member 10 are provided on the outercircumference of a flywheel 2 fixed to the end of crank shaft 1 while a fixed side electromagnetic coil 7 is provided onto the innercircumferential face of a fixing member 6 secured to a cylinder block 3 around the flywheel 2. An electric driver for applying positive torque onto the crank shaft 1 through power supply to said coils 7, 8 and a generator for applying reverse torque onto the crank shaft 1 through power supply to said coils 7, 8 are constructed. It is controlled such that said reverse torque will be lower than said positive torque under heavy load when compared with low load.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention suppresses tit and -r engine fluctuations from 1 to 1 lux! J″
This relates to a 1 to 1-lux variation control device for

(Prior art) In general, in automatic cranks, periodic 2i torque fluctuations occur in the C crankshaft as the engine operates, and this 1 to 1 torque fluctuation is the cause of the vibration U noise. Since this is an element that increases discomfort by 1, this J,
Torque fluctuations like this are possible (it is desirable to suppress the torque).

Conventionally, in an 11-position system for suppressing such torque fluctuations, as shown in Japanese Unexamined Patent Publication No. 11JL 55 1431, a permanent magnet i rotating together with the crankshaft is used. Correspondingly, a second magnetic flux generating means consisting of an electromagnet installed in a non-rotating part is provided, and by energizing the second magnetic flux generating means, rotational torque is generated in the crankshaft 1-71. Almost in opposite phase! There is a ``notaH'' neck so that ``l air'' - lux is added to the crankshaft.

-1-Arrangement W'j G;J:, The magnetic torque applied to the crankshaft p71- changes with the rotation of the first magnetic flux generating means using a permanent magnet.1.
) - (, [When magnetic 1~luk becomes 11 torque 1) Reverse torque and 1. Then, the second one-column bundle is generated.C゛The electric power is used for lodging expenses (C), but from the point of view of fuel efficiency, etc.
゛Kirda() ``It is desirable to suppress the torque ☆ movement J to perform the performance of the 1゛-, 31, l,], -(2, 1, U(2) of the request (, It can be done under high load (Notorque 4-Increase > Increase T output)
:JTj ``There is J2, 1 (invention 1) This invention i;
71 ~ I ~ Positive torque and reverse torque depending on the torque drive]
By adding Herkudo at a predetermined amount, it is possible to suppress fluctuations in the amount of
If we add 1'' to ≧\, we can add the same number of -Lneno1d1''-, and we can reduce ]-nelH=-r], and the [-1]injin^1 ”i White clay output at 1:00 pm! 1 - The engine that can be used is a 611 engine with a variable torque system.

(Structure of the Invention) The present invention includes an electric power generating device which is driven by an engine 1, and which gives a reverse torque to the crankshaft 11, and an electric drive device which can send illt to the crankshaft 71.
In synchronization with the periodic fluctuations of 1 to 100 degrees occurring in the crankshaft [1-]
1sa1! , 1~The electric drive device 1 is operated at 11, r, and the operation timing of both devices i and 7 is controlled by the T stage, and the T1 load of the engine is detected. The load detection 'stage receives the output of this 0 load detection stage f.
When the high f''IM of a J and T engine is used, the electric power generated by the electric drive system is increased by 11, compared to the electric drive system's H2l ~ l~k, which can be increased from this. It is equipped with a torque amount control f stage that controls the reverse 1 to relatively small torque.In other words, -[J
This fluctuation is suppressed +3 against the crankshaft torque fluctuation that occurs. The reverse torque is applied to the electric drive, and the reverse torque is applied to the electric drive. The relative value of the amount of power generated by the power generation device with respect to J was set to be low (large when one load is on, and small when in front of Hatake).

In configuration 1b above, relatively reducing the inverse torque given to the power generator d with respect to the positive torque generated by the electric drive device means reducing the inverse torque described above. This means increasing the positive torque, or increasing the positive torque, or both.

(Embodiment) Figures 1 to 843 show an embodiment of the structure of the power generation device J and the electric drive device included in the l-lux fluctuation control system (Q) of the present invention. In this case, an electromagnetic coil constituting a power generation device and an electric drive device is arranged on the outer periphery of a flywheel 2 mounted on a crankshaft 1 and a non-rotating portion around the flywheel 2. In other words, a flywheel 2 is installed at the side end of the crankshaft 1 on the side of the cylinder block 3, a clutch mechanism 4 is installed on the outside of the flywheel 2, and a clutch mechanism 4 is installed around the flywheel 2. A mounting member 6 for mounting the clutch housing 5 is fixed to the cylinder block 3.

In this part, a fixed antistatic 1iJI Tl wheel (hereinafter referred to as "fixed T1Il-1") 7 is installed on the inner peripheral surface of the upper distribution wheel 6 via a sabot 6Fl, and the outer periphery of the Funoi wheel 2 is Rotating anti-static with two scales on the surface II-1
coil (hereinafter referred to as [rotating coil]) 8, 9 and magnetic jet!
(A commutator 11 is installed on the outer periphery of the crankshaft 1 inside the flywheel 2.)
A slip ring 12 and a slip ring 12 are provided, and brushes 13 and 14 are in contact with each of them. <'c a3.15 is a distributor.

The fixed coil 7 serves as each fixed side coil of the motor and alternator, and is arranged as follows. The structure is schematically shown in FIGS. 5 and 7, and is a three-phase TM structure arranged in a meandering manner and connected to a control unit 20. As will be described in detail later, the circuit connected to the fixed coil 7 in the Citrol unit 20 can be switched between electric drive mode 1 and power generation.

+4: /, two types of rotation equipped on the outer periphery of the Nifly wheel 2 = 1 Il 8, 91t, respectively, the armature core of the motor] and the role of the field coil of the alternator. ~L) Therefore, as shown in FIG.
X, the second rotating coil 9 is shown in Fig. 6 (, 2, J, -)
The coils 8 and 91 are arranged in a meandering manner and connected to the slip ring 12. From Rollconit 20 to each specified time X1f (＼Rero,
As shown in FIG. 5, the terminals 1 to 20 are
energize the fixed 1st wheel 7 and the 1st rotation 1st wheel 8 with 41, the stator side (inner periphery of the handle f-1 part 16) and the rotor side (outer periphery of the flywheel 2). is the predetermined 1
4-11, they act as a motor and form an electric drive unit 16 which applies a positive torque to the crankshaft 11).

In addition, as shown in FIG. 7, the coil 7 is connected to the rectifier circuit 30 in the control units 1 to 20, which is fixed to the second rotary coil 9 through the terminal end 1. When it was done, Kowara set up a torpedo weapon @17 (M formed, 2nd synchronization=
Electric power is generated as the oil 9 rotates, and to this, a reverse 1 to 1 torque is applied to the crankshaft 1.
It's becoming a sea urchin.

Figure 8 (j shows the circuit structure of the torque fluctuation control device, in this figure C121 is the star 1-switch 21a
"O": 1-- including ignition 1 switch 21b
The switch 22 (as shown in this figure) is connected to the switching circuit 2 connected to the battery 22 via the key switch 21.
3, and the first drive circuit 2 connected to this switching circuit 23
'I A3 and the second drive circuit 2 Fi, each timing control circuit 26, 27 that controls and controls the drive timing of each of these drive circuits 2A and 25, respectively, and each current adjustment for electric drive and power generation. Circuit 28, 29 and 113 flow circuit 3
It is equipped with 0 etc.

The first drive circuit 24 energizes the fixed film 7, the current adjustment circuits 28A3, J: and the first rotating coil 8 when the driving state changes, and connects the fixed film 7, the current adjustment circuits 28A3, J: and the first rotating coil 8 to the terminals τ, Jl, etc. To operate the electric drive device 16 shown in FIG.
K □)"C is present. When the first drive 1 circuit 24 here is in the non-drive state, it is fixed = l Ill 7 is the rectifier circuit 30.
17 so as to be connected to the battery 22 via the battery 22 to form a charging circuit. On the other hand, the second drive circuit 25 energizes the second rotating coil 9 when in the drive state,
Therefore, the first drive circuit 24 is in the non-drive state (A) and the second drive circuit 24 is in the non-drive state.
What is the driving state of Pp rotation 6+325?1. : Doki, 7th
The power generator 1V shown in the figure is activated to charge the battery 22.

” - switching circuit 23 and timing control circuit 2G,
27 is controlled by Jζ by CPjJ 31, and CPU U3
1, the crank angle detection signal Y) from the crank angle sensor 1132, and the negative pressure at the There is.

To start the T-clan, the electric drive device 16 operates continuously. After starting, each timing control circuit 26
．． According to the output of CP (J31, the connection state with the battery 22 is changed so that each drive circuit 24.25 operates, and the connection state of each drive circuit 2/I, 25, etc. The drive timing of the second drive circuits 24 and 25 is controlled.

In this way, the CPU 31 and each timing control circuit 26, 27 are configured with operation timing control means for controlling the operation timing of the electric drive device 16 and the power generation device 17 according to torque fluctuations, and this control means ( , (1. Suppresses torque fluctuations occurring in the crankshaft 11. 1. Controls the operating timing of each of the above devices 16 and 17. For example, in a 4-cylinder 4-cycle engine, Figure 9 (Δ) shows '1jJ, sea urchin crankshaft 1
The torque generated by the CPU increases and decreases with a cycle of 1800 depending on the crank angle.
t, Fig. 9 (B) JL to r)" As shown in (C), there is a difference between 1 and 1 when the generated torque increases and decreases (when reverse I~R// occurs). Set the operation timings of the power generator 17 and the electric drive device 16 as shown in FIG.
Set 3 by crank angle. And crank angle I!
According to the crank angle detected by the sensor 32, the timing control circuit 2 (i, 27 and 27) is activated.

Binaka φ1j circuit 2/1.2Ei? Through ffl, electric drive 1JiffJ'? 16, and the power generator ζ717 are set to f1.
Intake from 0 pressure sensor 3:3 ()1
Detection (according to 14 months, the electric drive device 16 M J, Rui [torque power generation device 17 controls the reverse torque generation device 17:) and constitutes the C torque F11 control means, for example f”i' Mi (according to the intake air t* tr >'C) The settings of each operating period/71a, 01s of the power generating device 17 and the electric drive device 16 are changed as follows. To prevent 11! I usually use electricity!!
Between II θII S J, ST) Set the operating period θ1a of the generator 17 well.
Low f1 1jl ll', 7 is the generator set fl? l 1
Operation of 7 between 1 and 11 // Ia is installed 17, electric drive system P
? 16 operating period 01S, but the engine's
l As A becomes higher, the dashed line in the diagram shows 1
Like this, the power generation device 17 (1') 1'r operating period θ1a
1 and set at 1 to reduce the current and increase the operating period IIS of the electric drive 16. This J, the armpit that controls each operating period /7tS, /7118, corresponds to this 1! 'The operation start time Da.

It is desirable to control θs43. These operating periods eta, 1) ts and J: and operating start times 0a, 0s17]
The setting number corresponds to 1292 rotation speed etc. in advance and is stored in a memory outside the map. ["Noba J
, , or J- may be calculated for the function n in CP.

A3, during the above-mentioned operation 1111, only one of Ots and Ota is controlled at 1 according to the zero load, and the other is kept constant.

J: - "When the crank rotation speed is relatively low, it is due to the explosive force and the explosive torque drive, ■, -) τ is shown by the solid line in Figure 10. But 122
2 If the number of rotations is high to some extent < 4r, the rotation speed of the screwdriver system 1
Due to the increase in the torque caused by the 1 force, the low rotational speed is increased by 1, as shown by the broken line in FIG. 900 phase shift at crank angle compared to 'l/:: l-luk drive occurs,] shows the relationship between engine rotation speed and I~ Luk fluctuation. After the rotation speed r1, a shift in If/phase of 1 Her//Mo' motion occurs between the low rotation side and the high rotation side as shown in 1 degree3.For this reason, laterノ11-di+--1-(
= Indication (In the specific example of 1 control, the rotation speed r1 is expressed as tjχ(
, the two electric drive devices 16 and 7R, and the activation timing of the electric drive device 1η17 are changed in [ ]. Furthermore] 1-
In the region where the engine rotation is extremely high, the demand for 1~luke variation control is weak and the control is difficult to perform.
Exceed O<'Torque fluctuation control within the range)'
It's there.

A specific example of the control performed by this torque fluctuation control device will be explained next with reference to flowchart 1 in FIG. 12.

In this 711-but/-1-, first, the process for starting the engine is carried out, and in step S1, the required 1292 rotation speed is read, and the engine is started using the slurry engine S2. 1-Switch 21a is O
Check whether it is N or not. When the star 1~switch 21a is turned on, select the starting circuit and fix it until the T-crank rotation speed R reaches the predetermined value R81J or more and reaches a complete explosion state. Steps (S3 to S5) to energize the coil 8,
'In other words, the first drive circuit 24 via the switching circuit 23
The electric drive device 16 using the fixed 1st rotation 7th rotation 1st rotation 8th is used as a starter to continuously drive the ``C plow or 1!''. is before the predetermined R1J
, when it becomes large (L, move on to step S7. In addition, in step S2, the star 1 switch 21a is turned ON).
-, if it is determined that the engine speed R is not below the predetermined value R21, the process returns to step $1, and if it is greater than the predetermined value R2, the process proceeds to step S7 (step S7).
o).

Next, in the post-start processing, it is checked in step $7 whether or not the ignition switch 21b is turned on.

If the ignition switch 21b/)<ON, read the engine speed r and intake negative pressure (step $8), and then set the engine speed r to the limit stage setting value QJ for torque fluctuation control. Check whether or not (step 89)
). Then, if the upper limit setting value is 1.0, select the circuit for power generation and turn on the power to the circuit 9. Step S
1o, S11), that is, the first drive circuit 24 is not driven ψ)l
The second drive circuit 25 is set to the drive state along with the state and 116.
fl+ or μ.

When the I-crank rotation speed is equal to or higher than 1 - the attached set value rQ of torque fluctuation control], l'1. l;r: Performs processing for torque fluctuation control. This %l fill C is step $
9 is followed by C- "Cran rotation speed [゛ is the above-mentioned torque fluctuation member is 111! A small rotation speed r1 Kitake or fortune telling" 1be (Suitetsubu 512), in the low speed range below this rotation speed 11 (1
Then; Sakuyo Electric Drive 3! , visit 16 and power generation device 1
7, each v1 starting point θs, /7a is 1 in the low speed range.
~ value θs4 according to the torque fluctuation, set to Oal (slap 513), and when the rotation speed is in the high speed range of 11 or more, the above operation start time /7 s, D ; l @ l respectively.
A value of 17s2.082 is set in accordance with the torque fluctuation of the 1st speed series (step S14). Bye. Next, the power generation device 17 i1
'j, and each operating period of 71N air drive Vi f 16/)Ia, 19tswoT engine rotation speed r and intake negative pressure V
Set ship ra(r, ■)-15=, fs(r,v) according to (step S15.S+
6),,this 11. et al.'s 11th "a (r, v), rs
(r, v) 1) Mapping) Read, d'>or, the function of the engine speed [. and the intake pressure 0 V. 'i Iy- (In this case, if the aforementioned J, f('/4I of the sea urchin engine is high <t'J: 111λ, the operating period Ota of the power generator 17 is shortened.
(Set the operating period OIS of the electric stationary motor 16 as I-i <), then reduce the ratio of each operating period Or, IIS to 1, and set it to 1. Next, step At 5317, input crank angle 0.

It is interesting that the crank angle θ is the activation of the power generator rr 1γ! l
0 to 1 to the end of operation (1) a + 01: a): l, = (1 constant 9 around T1 << when 1.L
, by avoiding driving the second drive circuit 25 via the swimming control circuit 27. Crank angle O to J-
is the electric drive wave d16 (f)
When the state is within the constant qh range, the 11th! I7 operating circuit 24
Particularly, the first rotation is 7 and the first rotation is 8 ((energized) (step S20.
2+),.

When the crank angle θ is within the specified setting range (return to step S7 at any time), repeat the process below.
<r'Ji ignition switch 211) is OF +
- When the engine stops 1-, step S7
This is determined and the control operation ends.

By controlling according to the flowchart in 1- below, the torque fluctuation control is performed four times after starting the crank. 16 are operated at predetermined timings C'', and the above-mentioned J, uni crankshaft 1?71-1 occurs]~
If the value is 1, sea urchin 27 in Figure 9 (Δ), then Figure 9 (
Each of the above-mentioned torques: blue 17 and 16 is activated at the timing set to accommodate B) and (C). Therefore, the ninth
As shown in Figure (D), when the generated torque increases, a reverse torque is applied from the generator 17, and when the generated torque becomes a reverse torque, a positive torque is applied from the electric drive device 16. Roaring, these voices
The torque fluctuation is indicated by the 1cd chain line in Fig. 9 (△).
, suppressed by sea urchins. Then, when a reverse torque is applied, energy is recovered because power is generated (1").
, energy loss due to torque fluctuation suppression is reduced.

When the output is requested and low C-1 (rJ), the output is requested by the control according to the load of the crank. On the other hand, overdischarge is prevented by lengthening the operating period Ota of the power generating device 17. On the other hand, over-discharge is prevented by increasing the operating period Ota of the power generating device 17.
Is the operating period Ota of the power generator 17 relatively shortened during loading? 1. Since the operating period/71S of the drive device 16 is lengthened, 1.
, Sea urchin, Yi1ka1~Rukunou! The positive torque of 5 is increased, the reverse torque is decreased, and the overall torque is increased by 41 and the output is increased by 4T.

Is this invention applicable to electric drive device 16 and electric power generation fl? The specific structure of 717 is not limited to the above embodiment, and can be changed by 1Φ. For example, an electromagnetic coil that constitutes these devices is attached to a rotating shaft connected to the crankshaft via a gear and a non-rotating part around it. iJ
) 17τ1), 1, ku, 11 blades/general-[1 shellfish in the clan! and A: 'I: + a scooter similar to the throat and A
Using a alternator to control the energization to the kneading machine, torque control can be performed, or by using a star and an alternator (11 (1- V for torque control)). Electric drive device 16, 1, and power generator V117
Even if you set it up, it's okay.

(Effects of the Invention) In accordance with the above, the present invention has the following advantages: 1. Torque fluctuations occurring in the crankshaft shift. :, 1iil friend, -(, 11h
+ When the herque increases, the power generator is activated (reverse torque is applied, and when the torque is decreased, the electric drive device is not activated and the if torque is applied, so the torque drive is suppressed and the noise is increased.) ] It is possible to reduce the discomfort, and also to recover the -i energy when applying the reverse 1 to 1 -r, so that the T channel l'' -r] can be reduced to a small extent. At that time, when the engine is under high load, compared to when it is at low load, the electric drive V1 (2-by 1 [torque] is relatively smaller than the reverse 1 to 1 torque generated by the generator). 1h, f=l+i~lux is increased to increase the output, and it is possible to control load fluctuations even more appropriately.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of the main parts showing one embodiment of the structure of the power generation device N and electric drive device according to the present invention, Fig. 2 is a longitudinal sectional side view of the same, and Fig. 3 is a schematic perspective view of the same. Figures 4 to 7
The figure shows a schematic diagram of the wiring structure of the power generating device and the electric drive device. Figure (△)
, (F3), (C). (1)) is an explanatory diagram of the relationship between the generated I, the power generation unit, and the operating timing of the electric drive device, τ1, the power supply, and the electric drive. Characteristic diagram of occurrence 1 to torque fluctuation, Figure 11 is an explanatory diagram showing the relationship between engine speed and torque fluctuation, Figure 12 is control diagram 7.
0-b1 no 1-. 16... Electric drive device, 17... Power generation device, 20.
・・Con 1～口−Luunits l−124,25・・・・Drive f
i11 times M, 26.27...timing control circuit,
31...CPU. -2〇 - Figure 1 Figure 2 Figure 48 Engineer 8 Suspension y-

Claims (1)

[Claims] 1. a power generator driven by the engine to provide a reverse torque to the crankshaft; an electric drive device to provide a positive torque to the crankshaft; operating timing control means for controlling the operating timing of both devices so as to operate the electric drive device when the torque decreases; a load detecting means for detecting the load of the engine; and receiving the output of the load detecting means; Torque amount control means for controlling the reverse torque given by the power generating device to be relatively smaller when the engine is under high load compared to when the engine is under low load with respect to the positive torque given by the electric drive device. Engine torque fluctuation control device.