JPS58130704A - Electromagnetic torque rotating speed converter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic torque-to-rotation speed converter, and more particularly, it has a drive shaft to be connected to an internal combustion engine and a driven shaft to be connected to drive wheels of an automobile. The present invention relates to a linear torque-to-rotation speed conversion device for use in a hybrid vehicle, in particular, equipped with an energy storage device such as a storage battery or an electric flywheel.

One such converter is the Electrotechnique Zeitschrift.
Hnischen Zeitschrift) J
ETZ-ABd, 9 4 (1973) H. 11,
Seite 653 ff K is described.

This known conversion device comprises a conversion device connected to an internal combustion engine and a differential gear arrangement.

The drive shaft connected to the internal combustion engine is connected to the flywheel type x
Connected directly to energy storage equipment. Funeral of differential gear device
The output shaft of is connected to a constant current generating device provided in the storage battery 1 through another gear device at a certain constant transmission ratio.

The second output shaft of the differential gear is connected via a clutch to the input shaft of the differential gear of the drive wheels of the motor vehicle.

This known hybrid drive requires an expensive transmission. This is because the transmission ratio of the transmission device connected to the energy storage device is precisely limited, so the relationship between the rotational speed of the internal combustion engine and the rotational speed of the flywheel must be extremely strict. Another well-known drawback is that a constant current device is required for charging and discharging the storage battery.

In view of these drawbacks of known devices, the main object of the present invention is to! It is an object of the present invention to provide a single-fly type torque-to-rotation speed conversion device for a hybrid vehicle, which causes less wear and simplifies the power transmission device.

A second object of the present invention is to provide an electromagnetic torque-rotation device that can operate regardless of the rotational speed of the internal combustion engine or the sensor being driven automatically.According to the present invention, Such a l6 includes: (a) a first rotor fixed to the drive shaft so as to face a first stator having a three-phase or more multi-phase coil; and (b) a first rotor fixed to the drive shaft. and a second rotor having the same number of poles as the first rotor described in 011, (e)
(d) a second stator comprising a three-phase or more multi-phase coil having the same number of fourths and the same number of poles as the first stator; and (d) the second stator having a common short-circuit coil. 2
(e) an intermediate rotor comprising an outer core unit supporting the stator and an inner core unit magnetically coupled to the second rotor, and fixed to the driven shaft; (e) Art. 3-phase or more multi-phase edible electric wires are arranged to connect both coils of the second stator to each other; Further, there is provided a magnetic torque-rotation speed conversion device of the type described above, in which the first stator and the second stator can rotate relative to each other around a common axis. This is achieved by

As mentioned above, the present invention is particularly suitable for hybrid vehicles, but it can also be applied to vehicles that are not equipped with energy storage devices, such as ships, special vehicles, and passenger cars.

The main advantage of the present invention is that, by suitable combination of known electric machines with suitable connection modes, conventional machines can be used.
The advantage is that it can be used directly in armchair-type automobiles.

This well-known device includes Carl's Blood V
-(Charles Bradley) From Ic,
[Arch 77 Yule Electrotechnique (Arch
ivfirr Elekrotechnik) J XX
VII, Band, 1933, 12°Heft,
5eite 813 ff.
).

Two rotors are provided on the rotating shaft of the rotor, which are connected to each other by a short-circuit coil. - By rotating one stator of the force relative to the other stator, it is possible to control the rotation by means of a rotating magnetic field of a constant frequency.

Another similar known device (ql, by Rudolf Richter) is the Elektrische Machine 7.
Schinen) J&HV, 1954. Basel/Stuttgart, Birkhäuser
'1uset) % line, there is something disclosed in 5eite332ff. In this:'N fM,
Two motors are connected in tandem via an intermediate rotor.

However, these known devices t are originally intended for generating a cylinder rotation speed.

As mentioned above, the device based on the present invention is intended to make any mechanical transmission device inexpensive. If a brushless electric machine is used for hunting, it is possible to eliminate the need for maintenance of the device according to the present invention.

One of the main advantages of the invention is that in order to obtain any torque,
The purpose is to be able to continuously control the gear ratio.

Therefore, even if the rotational speed of the internal combustion engine is fixed, energy can be used effectively.

According to the invention, in a hybrid vehicle, the energy flow between the conversion device and the energy storage device:!
i control is simplified. That is, by simply connecting the converter and the energy storage device with a single line, the excess energy from the internal combustion engine and the energy stored in the energy storage device iIt can be effectively utilized.

Furthermore, in carrying out the present invention, the characteristics of the internal combustion engine,
and the state of the energy storage device, self! ll1
J'lj VC Electrical parameters can also be determined using the control 14+ computer/computer to determine the amount of torque required.

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

In Figure 1, two rotors (PLI) (PL2) fixed to the drive shaft (1) are excited from the outside via a slip ring (8), a brush (aa), an electric current Iw (ab), etc. It has become so. For larger devices, these rotors can be energized without the use of slip rings. The first rotor (PLI) and the stator (STI) constitute a three-phase or more multi-phase synchronous machine.

At the inner end (2a) of the driven shaft 2), an intermediate rotor (ZL
) is fixed to the rotor (ZL), and two concentric iron cores (ZL2) and (ZL3) are attached outside the gate of the rotor (ZL). Outer core (ZL3) i, l:, stator (Sr1) K, inner 111 (MJ core (ZL2)
U and the second rotor (PL2), respectively, are magnetically coupled.

Intermediate rotor (ZL) (7) 2 (7) Iron core (ZL
2) (ZL3) is equipped with a common short circuit coil (KW). A part of the short circuit coil (KW) is connected to the intermediate rotor (Z
It passes through a hole (4) drilled at a suitable location in L).

Two stators (STI) (Sr1) coils (SWI)
) (SW3) H1 smoothness 6 lm + 111jl
(FV) vc x and are connected to each other. The number of phases of both these coils (5W4X SW3) is equal to each other.

In order to use this conversion device Lt in a suitable operating range, both rotors (PLl) (PL2) and both coils (SW
l) (SW3) should each have the same number of poles.

Stator of synchronous machine (ST1) and another stator (
ST3) can be rotated in opposite directions around the same axis by the control device (SM). Its rotation range is an angle slightly larger than the pitch angle of the pole.

For example, in the case of a four-pole synchronous machine, the angle may be slightly larger than ±90 degrees, for example, ±100 degrees.

Control 1 fli (SM) The VC is equipped with a control motor (6), and the pinion (7) fixed to its rotating shaft (6) is connected to the opposing end surfaces of the housings (8) and (9) of both stators. [two gears fixed to] 10).

This control device (SM) can be operated manually, but it can be operated by a control computer as shown in FIG.
It can also be configured to operate automatically.

The output torque is the sum of the torques generated in the inner core of the intermediate rotor. The magnitude of each of these torques is proportional to the product of the magnitude of the magnetic field and the magnitude of the current.

The magnitude of the magnetic field in the air gap (2) between the stator (ST3) and the intermediate rotor (ZL) is determined by the voltage applied to the coil (5W3), i.e. induced in the stator (STI) by the first rotor (PLl). Determined by voltage. Air gap between second rotor (PL2) and intermediate rotor 0
8) The magnitude of the magnetic field in the second rotor (PL2)
induced by.

In these two air gaps (13) there are two rotating magnetic fields with the same number of poles and a rotational speed equal to the rotational speed of the drive shaft. This rotating magnetic field generates an alternating voltage in the shorted coil (KW) of the intermediate rotor.

When the two stators rotate in different directions, the positions of their rotating magnetic fields shift from each other, and these two rotating fields cause a relative phase lag in the current and pressure applied to the short-circuited coil (KW). . Part 118. The current flowing through the coil is determined by the sum of the voltage P/L, ).

When both stators are rotated relative to each other, the magnitude of the current flowing through the intermediate rotor changes.

The output torque generated on the driven shaft is expressed as a function of three quantities:

(1) Excitation force of the first rotor (PLI) (2) Excitation force of the second rotor (PL2) (3) Both stators (STx
, 5T2) Therefore, the current flowing through the short circuit coil (KW) will not exceed a certain value, and no losses will occur.

The converter shown in FIG. 2V has a slightly different construction than that of FIG. However, for the electromagnetic configuration,
There is no difference between ``Iμ'' and others.

In Fig. JJ2, the inner cores (ZL2) (ZL3) of the intermediate rotor in the embodiment of Fig. 1 are provided front and rear along the axial direction. In addition, the second rotor (PL2)
and the stator (ST3) are attached in front and behind each other.

By doing so, the overall length in the axial direction increases, but the outer diameter of the metal washer can be reduced.

The short-circuit coil (KW) of the intermediate rotor (ZL) efficiently supports the torque between the inner core (ZL2) and (ZL3) of the intermediate rotor, and the entire! 'It also works to enhance one's ultimate qualities. Other fsii l of this short circuit coil
ie is as described above at 91 in Figure 2.51.

FIG. 3 shows yet another embodiment having a T441i generally similar to the front.

Both rotors (PLI) (PL2) are equipped with permanent grinding wheels (MIXM).
2).

Hold both stators (ST
I) When (ST3') is rotated relative to each other H], both housings (8) and (9) are rotated relative to each other. This embodiment has the advantage, in particular, that the length in the axial force direction can be reduced.

FIG. 4 shows the conversion device shown in FIG. 1, together with some accessory devices, mounted on a hybrid automatic military.

The drive shaft (1) is connected to the rotating shaft (11) of the internal combustion payload (JVM) via a mechanical clutch (KU). Kakeru of the conversion device! , No'1 (II (2)) are connected to the input shaft of a differential gear (DG) connected to the vehicle wheels (ARI) (AR2).

The short-circuit coils (SWI) (SW3) of both stators connected to each other of the converter are used as the energy storage device of the hybrid vehicle, that is, the three-phase father flow generator (DS).
It is equipped with a storage tank (BSp) equipped with a synchronous machine (Sy) and a phase changer (DU), and a gyro disk (S
It is connected to a flywheel type energy storage device (G Sp) which is the main component.

Both rotors are connected to a direct current power supply (GSl) (G
S2) is excited by an external power supply.

When driving a car in a hybrid manner, electric wires (F
Create one or more energy storage devices by extracting or supplying power from V)! l[υ
can be done.

Since both stator coils are connected and the internal combustion engine (VM) still rotates at a rotational speed, a relatively large current of a relatively constant frequency flows through the electric current (FV).

Due to this configuration, the flywheel (Gsp) and its drive device are equipped with a DC converter (DU) for the brushless synchronous m (SY), and a three-phase AC converter (DS) for the storage battery (BSp). It can be suitably used.

Without mechanical clutches (KU) or internal combustion engines (VM), motor vehicles can be driven solely by energy storage devices without any pollution.

When the motor vehicle is braked or the internal combustion engine is momentarily subjected to a large load, the energy of the energy storage device must not be wasted for this purpose. A control computer can be used to dam such energy flows.

FIG. 5 shows a block diagram of one implementation of controlling a hybrid vehicle using a control computer.

As information from the conductor, 1 accelerator pedal position", "
``brake pedal position'' and ``driving conditions,'' as well as information from the vehicle such as ``internal combustion engine rotation speed,'' ``differential gear input shaft rotation speed,'' ``storage battery state of charge,'' and ``flywheel The rotational speed, etc. are supplied to the control computer.

From the computer, "10th - Excitation of data", 1st - 2nd
Outputs such as 0- motor excitation, 1- relative angle of both stators, 1- fuel supply, storage pond current, flywheel current, mechanical brake, and clutch. occurs. It is also possible to generate outputs other than these.

The two embodiments shown in FIGS. 1 and 2 have the same substantial configuration, but in the embodiment shown in FIG. 3, both rotors (
Instead of exciting PLI ) (PL2 ) with a controllable current, a permanent magnet is used.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a first embodiment of a conversion device according to the present invention. FIG. 2 is a schematic longitudinal sectional view showing a second embodiment of the conversion device according to the present invention. FIG. 3 is a schematic longitudinal cross-sectional view showing a third embodiment of the conversion device according to the invention. FIG. 4 is a conceptual diagram showing an embodiment in which the converter shown in FIG. 1 is used in a hybrid vehicle. FIG. 5 is a block diagram showing an embodiment of a control device for a hybrid vehicle. (1) Drive shaft (2) Driven shaft (8) Slip ring (3a) Brush (3b)'#It line
(4) Hole (6) Control device (6) Rotating shaft (
γ) Binyon (8) (9) Housing screaming gear (12) (Kon Gap Patent applicant's agent Sou Takezawa - Procedural amendment (method) May 6, 1980 Commissioner of the Japan Patent Office Haruki Shimada Tono 1 case Display of 1982 Patent Application No. 7366 2, Title of Invention Electromagnetic Torque-Rotation Speed Conversion Device 3
Relationship with the case of the person making the amendment Patent applicant

Claims (1)

[Scope of Claims] (1) It has a drive shaft to be connected to an internal combustion engine and a driven shaft to be connected to a driven object, especially an accumulator or a pneumatic flywheel, etc. An electromagnetic torque-to-speed conversion device for use in a rotating hybrid vehicle, comprising: (a) a first stator (ST1) having a three-phase or higher phase coil (SWI); A first rotor (PLl,) fixed to the drive shaft (1) so as to face each other.
(b) a second rotor (PL2) fixed to the drive shaft (1) and having the same number of poles as the first rotor (pLl); (c) the stator of Article 111. A second stay (ST3) comprising a three-phase or more multi-phase coil (SW3) having the same number of phases and the same number of poles as (STI);
and (d) have a mutually common short circuit coil (KW),
An outer core unit (ZL3) that supports the second stator (ST3), and an inner core unit (ZL2) that is magnetically connected to the second rotor (PL2),
and an intermediate rotor (ZL) fixed to the drive shaft.
and (e) the first stator and the second stator (
STI, 5T3) both coils (SWI, SW2)
(f) a three-phase or more multi-phase flexible electric wire (FV) connecting the two to each other; (f) so that the torque transmitted to the driven shaft (2)K can be controlled by a control device (SM); A conversion device w characterized in that the first stator and the second stator (5T1) (5T3) are relatively rotatable around a common axis. (2) The first rotor (PLl) and the second rotor (P
L2) is excited from the outside, and in order to control the torque of the driven shaft, the excitation force of both rotors (PLI, Pb0) and both rotors (STI, 5T3)
3. The rim according to claim 1, wherein the relative angle and the relative angle are adjustable. (3) First rotor (PLI) and second rotor (Pb0
The stator (STI) and the second stator (
Claim No. 1 characterized in that an energy generation device or an energy storage device attached to the variable displacement device is connected to the electric wire (FV) that connects the coils (SWI) (SW3) of Sr1) to each other. (1) Suffering from confusion (3)
Apparatus according to any of paragraphs. (51 The energy storage device is a direct current converter (DS)
4. The device according to claim 4, characterized in that it consists of a storage tank comprising: t. (6) The energy storage device is not a flywheel energy storage device W (GSp) mechanically directly connected to a three-phase or more multi-phase synchronous system (SY), but via a direct current converter (DU). Te kL ipj! (FV)
).