JP2002276806A - Drive unit for select actuator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drive unit for a select actuator provided with a back-up function capable of operating the select actuator by a manual operation when a driving driver or a control means is troubled. SOLUTION: This drive unit for the select actuator provided with a movable magnet body arranged in an outer circumferential face of an operation member constituted integrally with a shift lever of a transmission, a fixed cylindrical yoke arranged to surround the magnet body, and coils arranged inside the fixed yoke is provided with the driving driver for supplying electric power to the coils the first and second circuits connected to the driving driver, and plural relays arranged between the coils and the first circuit and the second circuit. Relay coils of the plural relays are connected respectively to a grounding circuit, and a manual operation switch, a manual back-up switch, and a manually operated direction changeover switch are arranged in the grounding circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device for a select actuator constituting a shift operation device for performing a shift operation of a transmission mounted on a vehicle.

[0002]

2. Description of the Related Art A shift operating device for shifting a transmission includes a select actuator for operating a shift lever in a select direction and a shift actuator for operating the shift lever in a shift direction. As such a select actuator and shift actuator, a fluid pressure cylinder using a fluid pressure such as air pressure or hydraulic pressure as an operation source is generally used. The select actuator and the shift actuator using this fluid pressure cylinder require a pipe connecting the fluid pressure source and each actuator, and it is necessary to provide an electromagnetic switching valve for switching the flow path of the working fluid. However, there is a problem that a space for arranging them is required, and that the weight of the entire apparatus becomes heavy. In recent years, a select actuator and a shift actuator constituted by an electric motor have been proposed as a shift operation device of a transmission mounted on a vehicle that does not have a compressed air source or a hydraulic source. Since the select actuator and the shift actuator constituted by the electric motor do not need to use the piping or the electromagnetic switching valve connected to the fluid pressure source unlike the actuator using the fluid pressure cylinder, the whole apparatus is configured to be compact and lightweight. be able to. However, an actuator using an electric motor requires a speed reduction mechanism to obtain a predetermined operating force. As this reduction mechanism, a mechanism using a ball screw mechanism and a mechanism using a gear mechanism have been proposed. An actuator using the ball screw mechanism and the gear mechanism cannot always satisfy the durability of the ball screw mechanism and the gear mechanism, the durability of the electric motor, and the operation speed.

In consideration of the above points, the applicant of the present invention has proposed, as Japanese Patent Application No. 2001-0131612, a speed change operation device provided with a select actuator which is excellent in durability and can increase the operation speed. Japanese Patent Application 2001-013
No. 162, a select actuator constituting a shift operating device includes a shift sleeve integrally formed with a shift lever of a transmission, a magnet movable body disposed on an outer peripheral surface of the shift sleeve, and a magnet movable body. It consists of a cylindrical fixed yoke arranged around the body and a coil arranged inside the fixed yoke, and the shift sleeve, that is, by changing the polarity of the electric power supplied to the coil. The select direction of the shift lever is changed.

[0004]

In the event that the drive driver and the control means for controlling the drive driver fail, the drive driver may be provided with a backup function for manually operating the select actuator. desirable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and its main technical problem is to provide a select actuator having a backup function capable of manually operating a select actuator when a drive driver or control means fails. A drive device is provided.

[0006]

According to the present invention, there is provided, in accordance with the present invention, a magnet movable member disposed on an outer peripheral surface of an operating member integrally formed with a shift lever of a transmission. A drive device for a select actuator, comprising: a body, a cylindrical fixed yoke surrounding the movable magnet, and a coil disposed inside the fixed yoke. Driver, a first circuit and a second circuit connected to the driver, and a connection switchable between one end of the coil and the first circuit or the second circuit. First switching means, second switching means capable of switching connection between the other end side of the coil and the second circuit side or the first circuit side, and the first switching means provided in the first circuit; Switching means side and the second switching means And third switching means which can be connected and switched to the drive driver side or the power supply side, and the second switching means side and the first switching means side provided in the second circuit and the drive driver side or Fourth switching means capable of switching connection to the ground side, a manual operation switch for energizing the fourth switching means, and a manual backup for energizing the third switching means and the fourth switching means A drive device for a select actuator, comprising: a switch; and a manual operation direction switch for energizing the first switching unit and the second switching unit.

[0007] The select actuator includes select position restricting means for restricting an operation position of the shift sleeve in accordance with a thrust generated in the shift sleeve in accordance with an amount of power supplied to the coil. Are provided in parallel with a driving force changeover switch and a resistor.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of a drive device for a select actuator constructed in accordance with the present invention.

FIG. 1 is a sectional view showing an embodiment of a speed change operation device provided with a select actuator driven by a drive device constructed according to the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. It is BB sectional drawing in FIG. The speed change operation device 2 according to the first embodiment includes a select actuator 3 and a shift actuator 5. The select actuator 3 in the illustrated embodiment includes three cylindrical casings 31a, 31b, 31c. A control shaft 32 is provided in each of the three casings 31a, 31b, 31c, and both ends of the control shaft 32 are disposed on both sides of the casings 31a, 31c.
Are rotatably supported via bearings 33a and 33b. A spline 321 is formed at an intermediate portion of the control shaft 32, and a cylindrical shift sleeve 35 as an operating member integrally formed with the shift lever 34 is slidably provided in the spline 321 in the axial direction. Mated. The shift lever 34 and the shift sleeve 35 are made of a non-magnetic material such as stainless steel.
1b is provided so as to pass through an opening 311b formed in a lower portion of the lower portion 1b. The tip of the shift lever 34 constitutes a shift mechanism of a transmission (not shown) disposed at the first select position SP1, the second select position SP2, the third select position SP3, and the fourth select position SP4. The shift blocks 301, 302, 303, and 304 are appropriately engaged with each other.

A magnet movable body 36 is provided on the outer peripheral surface of the shift sleeve 35. This magnet movable body 36
Is composed of an annular permanent magnet 361 mounted on the outer peripheral surface of the shift sleeve 35 and having magnetic poles at both axial end surfaces thereof, and a pair of movable yokes 362 and 363 disposed outside the permanent magnet 361 in the axial direction. It is configured. 1 and 2, the right end face of the permanent magnet 361 in the illustrated embodiment is magnetized to the N pole, and the left end face in FIGS. 1 and 2 is magnetized to the S pole. The pair of movable yokes 362 and 363 are formed in an annular shape from a magnetic material. The magnet movable body 36 configured as described above is positioned at the right end in FIG. 1 and FIG. 2 of one (the right side in FIG. 1 and FIG. 2) of the movable yoke 362 with the step 351 formed in the shift sleeve 35, and the other. The right end of the movable yoke 363 (the left side in FIGS. 1 and 2) in FIGS. 1 and 2 is positioned by the snap ring 37 attached to the shift sleeve 35, and the axial movement is regulated. On the outer peripheral side of the magnet movable body 36, a fixed yoke 39 is provided so as to surround the magnet movable body 36. The fixed yoke 39 is formed in a cylindrical shape by a magnetic material, and is mounted on the inner peripheral surface of the central casing 31b. Inside the fixed yoke 39, a pair of coils 40 and 41 are provided. This pair of coils 4
Numerals 0 and 41 are connected to each other in such a manner that the winding directions are reversed on bobbins 42 formed of a nonmagnetic material such as a synthetic resin and mounted on the inner peripheral surface of the fixed yoke 39. . Note that the pair of coils 40 and 41 are connected to a drive circuit described later. The axial length of the coil 40 is the same as the first select position SP1.
Is set to a length substantially corresponding to the selected length from to the fourth select position SP4. End walls 43 and 44 are mounted on both sides of the fixed yoke 39, respectively.
Seal members 45 and 46 that are in contact with the outer peripheral surface of the shift sleeve 35 are mounted on the inner peripheral portions of the end walls 43 and 44, respectively.

The select actuator 3 according to the first embodiment is configured as described above, and includes a movable magnet 36 and a fixed yoke 3 disposed on the shift sleeve 35.
9 and a pair of coils 40 and 41. Hereinafter, the operation will be described with reference to FIG. In the select actuator 3 according to the first embodiment, FIG.
And N of the permanent magnet 361 as shown in FIG.
Pole, one movable yoke 362, one coil 40, fixed yoke 39, the other coil 41, the other movable yoke 3
63, a magnetic circuit 368 passing through the S pole of the permanent magnet 361 is formed. In such a state, the pair of coils 4
When a current is supplied to the magnets 0 and 41 in the direction shown in FIG. 4A, the magnet movable body 36, that is, the shift sleeve 35 is moved rightward as shown by the arrow in FIG. Thrust is generated. On the other hand, a pair of coils 4
As shown in FIG. 4B, a current is applied to 0 and 41 in the direction opposite to that of FIG. 4A. According to Fleming's left-hand rule, the magnet movable body 36, ie, the shift sleeve 35, In b), a thrust is generated to the left as shown by the arrow. The magnitude of the thrust generated in the magnet movable body 36, that is, the shift sleeve 35, is determined by the amount of power supplied to the pair of coils 40 and 41.

The select actuator 3 in the illustrated embodiment includes the magnet movable body 36, ie, the shift sleeve 3.
5 in cooperation with the amount of thrust acting on the shift lever 34
The first select position restricting means 47 and the second select position restrict for restricting the position to the first select position SP1, the second select position SP2, the third select position SP3, and the fourth select position SP4. Means 48 are provided. The first select position restricting means 47 is provided with snap rings 471, 4 attached to the right end of the central casing 31b in FIGS.
72, a compression coil spring 473 disposed between the snap rings 471 and 472, and a compression coil spring 47
3 and one of the snap rings 471, and the movable ring 474 abuts when the movable ring 474 moves a predetermined amount to the right in FIGS. 1 and 2 to regulate the movement of the movable ring 474. A stopper 475 is provided.

The first select position regulating means 47 constructed as described above applies a voltage of, for example, 2.4 V to the pair of coils 40, 41 from the state shown in FIGS.
1A, the magnet movable body 36, that is, the shift sleeve 35 moves to the right in FIGS. 1 and 2, and the right end of the shift sleeve 35 in FIGS. Position is regulated by contact. In this state, the spring force of the coil spring 473 is set to be larger than the thrust acting on the magnet movable body 36, that is, the shift sleeve 35, so that the shift sleeve 35 in contact with the moving ring 474 The moving ring 474 is stopped at a position where it contacts the one snap ring 471. At this time, the shift lever 34 integrated with the shift sleeve 35 is positioned at the second select position SP2. Next, the pair of coils 4
When a current is applied to the magnets 0 and 41 at a voltage of 4.8 V, for example, as shown in FIG. 4A, the thrust acting on the magnet movable body 36, that is, the shift sleeve 35 is made larger than the spring force of the coil spring 473. Therefore, the shift sleeve 35 contacts the moving ring 474 and then moves rightward in FIGS. 1 and 2 against the spring force of the coil spring 473, and the moving ring 474 contacts the stopper 475. Stops at the touched position. At this time, the shift lever 34 formed integrally with the shift sleeve 35 is located at the first select position SP1.

Next, the second select position regulating means 4
8 will be described. Second select position regulating means 48
1 and 2 are snap rings 481 and 482 mounted on the left end portion of the central casing 31b at predetermined intervals, and a coil spring 483 disposed between the snap rings 481 and 482. , The coil spring 4
The moving ring 484 disposed between the first ring 83 and one of the snap rings 481 comes into contact with the moving ring 484 when the moving ring 484 moves a predetermined amount to the left in FIGS. 1 and 2 to restrict the movement of the moving ring 484. And a stopper 485.

The second select position regulating means 48 constructed as described above applies the voltage of, for example, 2.4 V to the pair of coils 40 and 41 from the state shown in FIGS.
1B, the magnet movable body 36, that is, the shift sleeve 35 moves to the left in FIGS. 1 and 2, and the left end of the shift sleeve 35 in FIGS. Position is regulated by contact. In this state, the spring force of the coil spring 483 is set to be larger than the thrust acting on the permanent magnet 361, that is, the shift sleeve 35. Therefore, the shift sleeve 35 abutting on the moving ring 484 moves. The ring 484 is stopped at a position where it comes into contact with one snap ring 481. At this time, the shift lever 34 formed integrally with the shift sleeve 35 is positioned at the third select position SP3. Next, the pair of coils 4
When a current is applied to the magnets 0 and 41 at a voltage of, for example, 4.8 V as shown in FIG. 4B, the thrust acting on the magnet movable body 36, that is, the shift sleeve 35 becomes larger than the spring force of the coil spring 483. Therefore, after the shift sleeve 35 abuts against the moving ring 484, the shift sleeve 35 moves leftward in FIGS. 1 and 2 against the spring force of the coil spring 483, and the moving ring 484 comes into contact with the stopper 485. Stops at the touched position. At this time, the shift lever 34 formed integrally with the shift sleeve 35 is positioned at the fourth select position SP4. As described above, in the illustrated embodiment, since the first select position restricting means 47 and the second select position restricting means 48 are provided, by controlling the amount of power supplied to the pair of coils 40 and 41, The shift lever 34 can be positioned at a predetermined select position without position control.

As described above, the select actuator 3 according to the first embodiment, which constitutes the speed change operation device 2,
Since the cylindrical shift sleeve 35 integrally formed with the shift lever 34 operates according to the principle of a linear motor constituted by the magnet movable body 36, the fixed yoke 39, and the pair of coils 40 and 41, there is no rotating mechanism. with improved durability because, since the speed reduction mechanism composed of a ball screw mechanism or a gear mechanism as an actuator using an electric motor is not required, it is possible to configure a compact, it is possible to increase the operating speed.

Next, a second embodiment of the select actuator constituting the speed change operation device 2 will be described with reference to FIGS. The select actuator 3a according to the second embodiment shown in FIG. 5 includes a magnet movable body 36a and a fixed yoke 3
The coil 40a disposed inside the magnet 9 is the magnet movable body 36 of the select actuator 3 in the first embodiment.
Although it is different from the pair of coils 40 and 41, the other components may be substantially the same as the select actuator 3 in the first embodiment. Therefore, FIG. 5 shows only a main part different from the select actuator 3 according to the first embodiment, and the same members as those constituting the select actuator 3 according to the first embodiment are denoted by the same reference numerals. It is.

The select actuator 3a according to the second embodiment comprises one coil 40a disposed inside the fixed yoke 39. The coil 4
The axial length of 0a is set to a length substantially corresponding to the selected length from the first select position SP1 to the fourth select position SP4.

The movable magnet 36a is provided with a shift sleeve 35.
The movable yoke 360a is mounted on the outer peripheral surface of the movable yoke 360, and an annular permanent magnet 364a is disposed on the outer peripheral surface of the movable yoke 360a so as to face the inner peripheral surface of the coil 40a. The movable yoke 360a is formed of a magnetic material,
A cylindrical portion 361a to which a permanent magnet 364a is attached, and annular flange portions 3 provided at both ends of the cylindrical portion 361a, respectively.
62a, 363a, and flange portions 362a, 36
The outer peripheral surface of 3 a is configured close to the inner peripheral surface of the fixed yoke 39. The gap between the outer peripheral surfaces of the flange portions 362a and 363a and the inner peripheral surface of the fixed yoke 39 is preferably as small as possible, but is set to 0.5 mm in the illustrated embodiment in consideration of manufacturing errors and the like. The movable yoke 360a configured as described above is positioned at the right end in FIG. 5 on the step portion 351 formed on the shift sleeve 35, and is positioned on the left end in FIG. 5 by the snap ring 365a mounted on the shift sleeve 35. Axial movement is restricted. The permanent magnet 364a has magnetic poles on the outer peripheral surface and the inner peripheral surface. In the illustrated embodiment, the N pole is formed on the outer peripheral surface and the S pole is formed on the inner peripheral surface. The permanent magnet 364a thus formed is connected to the movable yoke 3
60a is mounted on the outer peripheral surface of the cylindrical portion 361a, and the axial movement is restricted by snap rings 366a and 367a provided on both sides of the cylindrical portion 361a.

The select actuator 3a according to the second embodiment is configured as described above, and its operation will be described below with reference to FIG. In the select actuator 3a according to the second embodiment, as shown in FIG. 6A and FIG.
A first magnetic flux circuit 368a and a second magnetic flux circuit 369a are formed. That is, in the select actuator 3a according to the second embodiment, the permanent magnet 36
A first magnetic circuit 368a passing through the N pole of 4a, the coil 40a, the fixed yoke 39, the flange portion 362a of the movable yoke 360a, the cylindrical portion 361a of the movable yoke 360a, the S pole of the permanent magnet 364a, and the permanent magnet 364a N pole , Coil 40
a, fixed yoke 39, flange 36 of movable yoke 360a
3a, a second magnetic circuit 369a passing through the cylindrical portion 361a of the movable yoke 360a and the S pole of the permanent magnet 364a is formed. In this state, when a current is applied to the coil 40a in the direction shown in FIG. 6A, thrust is applied to the magnet movable body 36a, that is, the shift sleeve 35 to the left as shown by the arrow in FIG. Occurs. On the other hand, the coil 40a
As shown in FIG. 6B, when a current flows in a direction opposite to that of FIG. 6A, the magnet movable body 36a, that is, the shift sleeve 3
In FIG. 5, a thrust is generated to the right as shown by the arrow in FIG. The select actuator 3a according to the second embodiment includes a first magnetic flux circuit 368 including a permanent magnet 364a as shown in FIGS. 6A and 6B.
a and a second magnetic flux circuit 369a are formed, and an inner peripheral surface of the fixed yoke 39 and a flange portion 362a of the movable yoke 360a are formed.
And 363a are arranged close to each other, so that a large air gap against the magnetic flux is generated in the coil 40a.
Only. Therefore, the select actuator 3a in the illustrated embodiment can minimize the air gap in the magnetic flux circuit by the permanent magnet 364a, and can obtain a large thrust.

Next, a third embodiment of the select actuator constituting the speed change operation device 2 will be described with reference to FIGS. The select actuator 3b according to the third embodiment shown in FIG. 7 is different from the select actuator 3a according to the second embodiment in that the magnet movable body 36b disposed on the shift sleeve 35 is different from the magnet movable body 36b.
Although different from 6a, other components may be substantially the same as the select actuator 3a in the second embodiment. Therefore, FIG. 7 shows only a main part different from the select actuator 3a in the second embodiment, and the same members as those of the constituent members constituting the select actuator 3a in the second embodiment are denoted by the same reference numerals. It is.

The select actuator 3b according to the third embodiment has a single coil 40b disposed inside the fixed yoke 39, like the select actuator 3a according to the second embodiment. The axial length of the coil 40b is set to a length substantially corresponding to the selected length from the first select position SP1 to the fourth select position SP4.

The movable magnet 36b is provided with a shift sleeve 35
And a pair of permanent magnets 362 disposed on both sides of the intermediate yoke 361b with the intermediate yoke 361b disposed on the peripheral surface of the coil 40b so as to face the inner peripheral surface of the coil 40b.
b, 363b and the pair of permanent magnets 362b, 363b
And a pair of movable yokes 364b and 365b respectively disposed outside in the axial direction. The intermediate yoke 361b is formed in an annular shape from a magnetic material.
The pair of permanent magnets 362b and 363b have magnetic poles on both end faces in the axial direction. In the illustrated embodiment, N poles are formed on opposite end faces, and S poles are formed on the axially outer end faces. I have. The pair of movable yokes 36
4b and 365b are each formed of a magnetic material, and are respectively formed with cylindrical portions 364c and 365c and the cylindrical portions 364.
c, 365c having annular flanges 364d, 365d provided at axially outer ends, respectively.
The outer peripheral surfaces of d and 365d are configured close to the inner peripheral surface of the fixed yoke 39. The gap between the outer peripheral surfaces of the flanges 364d and 365d and the inner peripheral surface of the fixed yoke 39 is set to 0.1 mm as in the case of the magnetic actuator 3a in the second embodiment.
It is set to 5 mm. In the illustrated embodiment, the pair of movable yokes 364b and 365b are respectively formed with cylindrical portions 364c and 365c and flange portions 364d and 365b.
Although the example constituted by d is shown, it may be constituted only by a flange portion whose outer peripheral surface is close to the inner peripheral surface of the fixed yoke 39. The pair of movable yokes 36 thus configured
4b and 365b are shift sleeves 35 at the right end of one (the right side in FIG. 7) movable yoke 364b in FIG.
7, the right end of the movable yoke 365b (the left side in FIG. 7) is attached to the shift sleeve 35 in FIG.
6b, the movement in the axial direction is regulated.

The select actuator 3b according to the third embodiment is configured as described above, and its operation will be described below with reference to FIG. In the select actuator 3b according to the third embodiment, as shown in FIGS. 8A and 8B, a first magnetic flux circuit 368b and a second magnetic flux circuit 369b formed by a pair of permanent magnets 362b and 363b. Is formed. That is, in the select actuator 3b in the illustrated embodiment, the N pole of the permanent magnet 362b, the intermediate yoke 361b, the coil 40b, the fixed yoke 39, the flange 364d of the movable yoke 364b, the cylindrical portion 364c of the movable yoke 364b, and the permanent magnet First magnetic circuit 368b passing through the south pole of 362b
And a second magnetic circuit passing through the N pole of the permanent magnet 363b, the intermediate yoke 361b, the coil 40b, the fixed yoke 39, the flange portion 365d of the movable yoke 365b, the cylindrical portion 365c of the movable yoke 365b, and the S pole of the permanent magnet 363b. 369b are formed. In this state, when a current is applied to the coil 40b in the direction shown in FIG.
8b, that is, a thrust is generated on the shift sleeve 35 to the left in FIG. On the other hand, when an electric current is applied to the coil 40b in the opposite direction to that shown in FIG. 8A as shown in FIG. 8B, the magnet movable body 36b, that is, the shift sleeve 35 is moved rightward in FIG. Thrust is generated.

As described above, the select actuator 3b according to the third embodiment includes a pair of permanent magnets 362
b, 363b are disposed with the intermediate yoke intermediate yoke 361b interposed therebetween, and N poles are formed on the end faces of the pair of permanent magnets 362b, 363b facing each other. They repel each other and move toward the coil 40b. Therefore, in the select actuator 3b according to the third embodiment, since the magnetic flux passes through the coil 40b in a perpendicular state, the thrust generated in the pair of permanent magnets 362b and 363b, that is, the output shaft member shift sleeve 35 may be increased. it can. In addition,
An S pole may be formed on the end faces of the pair of permanent magnets 362b and 363b facing each other. That is, the pair of permanent magnets 3
It is desirable that the mutually facing end faces of 62b and 363b are formed in the same polarity. Further, in the select actuator 3b according to the third embodiment, as shown in FIGS. 8A and 8B, a first magnetic flux circuit 368b and a second magnetic flux by a pair of permanent magnets 362b and 363b. A circuit 369b is formed and the fixed yoke 39
And the outer peripheral surfaces of the flange portions 364d and 365d of the pair of movable yokes 364b and 365b are arranged close to each other, so that a large air gap against magnetic flux is generated.
0b only. Therefore, the magnet type actuator 3b according to the third embodiment includes a pair of permanent magnets 362b, 3
The air gap in the magnetic flux circuit by 63b can be made as small as possible, and a large thrust can be obtained.

Next, the select actuator 3 (3
a, 3b), the coils 40, 41 (40a, 40)
An embodiment of a drive circuit for supplying power to b) will be described with reference to FIGS. The drive circuit 10 in the illustrated embodiment includes a drive driver 12 connected to a power supply 11. The output voltage and the like of the driving driver 11 are controlled by the control means 13. The first circuit 14 is connected to the plus (+) electrode side of the drive driver 11, and the second circuit 15 is connected to the minus (−) electrode side. First circuit 14 and one end 40 of coils 40, 41 (40a, 40b)
1, one end 401 of the coils 40, 41 (40a, 40b) and the first circuit 14 or the second circuit 15
A first relay 16 as first switching means capable of switching connection is provided on the side. This first relay 1
6 is one end 40 of the coils 40, 41 (40a, 40b)
1, a contact 162 connected to the first circuit 14 side, a contact 163 connected to the second circuit 15 side, and one end connected to the contact 161 and the other end normally connected to the contact 161. The movable piece 164 is connected to the movable piece 164, and the relay coil 165 is provided to face the movable piece 164. One end of the relay coil 165 is connected to the power supply 11, and the other end is connected to a switching transistor (not shown) built in the control means 13. When the control transistor 13 activates the switching transistor, a current flows, The movable section 164
Is connected to the contact 163 side.

The second circuit 15 and the coils 40 and 41 (40
a, 40b) between the other end 402 and the coils 40, 4
1 (40a, 40b) on the other end 402 side and the second circuit 15
A second relay 17 as second switching means capable of switching connection is provided on the side or the first circuit 14 side. The second relay 17 includes coils 40 and 41 (40
a, 40b), a contact 171 connected to the other end 402;
A contact 172 connected to the second circuit 15, a contact 173 connected to the first circuit 14, and a movable piece 174 having one end connected to the contact 171 and the other end normally connected to the contact 172. And a relay coil 175 disposed opposite to the movable piece 174. One end of the relay coil 175 is connected to the power supply 11, and the other end is connected to a switching transistor (not shown) built in the control unit 13. When the switching transistor is operated by the control unit 13, a current flows,
The other end of the movable piece 174 is connected to the contact 173 side.

Between the first circuit 14 and the first relay 16 and the second relay 17, there are a first relay 16 side and a second relay 17 side and a first circuit 14 side or a power supply 11. A third relay 17 as third switching means capable of switching connection is provided. The third relay 18 is connected to the first relay 16 and the second relay 17.
181 connected to the first circuit 14, the contact 182 connected to the first circuit 14, and the contact 18 connected to the power supply 11
3, one end is connected to the contact 181 and the other end is normally the contact 1
82, the movable section 184 connected to the movable section
4 and a relay coil 185 disposed to face. One end of the relay coil 185 is connected to the power supply 11 and the other end is connected to the grounding circuit 20. When a current flows through the grounding circuit 20 as described later, the other end of the movable piece 184 is contacted. 183 side.

Between the second circuit 15 and the second relay 17 and the first relay 16, between the second relay 17 side and the first relay 16 side and the second circuit 15 side or the ground circuit A fourth relay 19 as a fourth switching means capable of switching connection is provided on the 21 side. The fourth relay 21 includes a contact 191 connected to the second relay 17 side and the first relay 16 side, and a second circuit 15.
A movable piece 194 having one end connected to the contact 191 and the other end normally connected to the contact 192; a contact 192 connected to the contact 192; a contact 193 connected to the ground circuit 21;
The relay coil 1 disposed opposite to the movable section 194
95. The relay coil 195 has one end connected to the power supply 11 and the other end connected to the ground circuit 20. When a current flows through the ground circuit 20 as described later, the other end of the movable piece 194 is connected to a contact. 1
Switch connection to the 93 side.

The driving circuit 10 in the embodiment shown in FIG.
A manual operation switch section 25 for manually operating each of the relays is provided. This manual operation switch unit 25
The manual operation switch 251 disposed in the ground circuit 21, the manual backup switch 252 disposed in the ground circuit 20, and the first relay 16
And the relay coils 165 and 1 of the second relay 17
A manual operation direction changeover switch 253 provided in the ground circuit 22 connected to the switch 75 is provided. The manual operation switch 251 is configured to be open (OFF) during normal operation and closed (ON) during backup operation. The driving force changeover switch 25 is provided in the ground circuit 22 in which the manual operation switch 251 is provided.
4 and the resistor 255 are arranged in parallel. The manual backup switch 252 is open (OF) during normal operation.
F) so that it is closed (ON) during the backup operation. The manual operation direction switch 253 is open (OFF) during normal operation, and is closed (ON) during backup operation.

The drive circuit 10 in the illustrated embodiment is configured as described above, and its operation will be described below. First, a normal operation in which the drive driver 12 and the control means 13 are operating normally will be described. In addition,
During normal operation, the switches provided in the manual operation switch unit 25 are open (OFF) as shown in FIGS. 9 and 10. For example, FIG.
As shown in FIG. 8B and FIG. 8B, when the shift sleeve 35 of the select actuators 3, 3a, 3b is operated in the right direction in FIG. In the state shown in (1), electric power controlled to a predetermined voltage by the drive driver 12 according to an instruction of the control means 13 is supplied from the plus (+) electrode side. That is, the first circuit 14, the third relay 18, the first relay 16, the coils 40, 41 (40
a, 40b), the coils 40, 41 (40
a, 40b), the second relay 17, the fourth relay 19, the second circuit 15, the current flows through the minus (-) electrode of the drive driver 12, and the shift of the select actuator 3, 3a, 3b. The sleeve 35 is actuated to the right as shown in FIGS. 4 (a), 6 (b) and 8 (b). Note that, during the above-described select operation in the one select direction, the shift sleeve 3
5, that is, when the shift lever 34 is to be positioned at the second select position SP2, the output voltage from the drive driver 12 is controlled to 2.4 V, and when the shift lever 34 is to be positioned at the first select position SP1, the output voltage from the drive driver 12 is controlled. The output voltage is controlled at 4.8V.

Next, as shown in FIGS. 4 (b), 6 (a) and 8 (a), the shift sleeve 35 of the select actuators 3, 3a, 3b is moved to the left, that is, the other side. 10, the first relay 16 and the second relay 17 are operated by the control means 13 from the state shown in FIG. 9 as shown in FIG. 9, and the other ends of the movable sections 164 and 174, respectively. Are switched and connected to the contacts 163 and 173 side. And
Electric power controlled to a predetermined voltage by the drive driver 12 according to an instruction from the control means 13 is supplied from the plus (+) electrode side. As a result, the drive driver 12 sends the first circuit 1
4, third relay 18, second relay 17, coil 4
0, 41 (40a, 40b) other end 402, coil 4
Current flows through one end 401 of 0, 41 (40a, 40b), the first relay 16, the fourth relay 19, the second circuit 15, and the minus (-) electrode of the drive driver 12, and the select actuator 3, 3a, 3b shift sleeve 35
Are actuated to the left as shown in FIGS. 4 (b), 6 (a) and 8 (a). When the shift sleeve 35, that is, the shift lever 34 is to be positioned at the third select position SP3 during the above-described select operation in the other select direction, the output voltage from the drive driver 12 is controlled to 2.4 V. When it is desired to position the fourth select position SP4, the output voltage from the drive driver 12 is controlled to 4.8V.

Next, a case where the drive driver 12 and the control means 13 have failed will be described with reference to FIG. When the backup operation is performed due to the failure of the drive driver 12 and the control means 13, first, the manual backup switch 252 is closed (ON). As a result, in the third relay 18 and the fourth relay 19, current flows through the relay coils 185 and 195, respectively.
And 193 side. If the manual backup switch 252 is closed (ON), the above-mentioned FIG.
(A), (b) of FIG. 6, and (b) of FIG. 8, when the shift sleeve 35 of the select actuators 3, 3a, 3b is operated in the right direction in FIG. Then, the first relay 16 and the second relay 17 are maintained in the state shown in FIG. 11, and the manual operation switch 251 is closed (ON). At this time, as described above, the shift sleeve 35, that is, the shift lever
, The driving force changeover switch 254 is kept open (OFF). As a result, the third relay 18, the first relay 16, the coils 40, 41 (40a, 40b)
, One end of the coil 40, 41 (40a, 40b),
Second relay 17, fourth relay 19, ground circuit 21
Manual backup switch 251 and resistor 2
The current flows through 55, and the select actuator 3,
The shift sleeves 3a and 3b are shown in FIGS.
8 (b) and FIG. 8 (b). Thus, as described above, the coils 40, 4
1 (40a, 40b), when the current flowing through the resistor 255, the spring force of the coil spring 473 is set to be larger than the thrust acting on the magnet movable body 36, that is, the shift sleeve 35. The shift sleeve 35 in contact with the moving ring 474 is stopped at a position where the moving ring 474 is in contact with one of the snap rings 471. Therefore, the shift lever 34 integrally formed with the shift sleeve 35 is located at the second select position SP2.

On the other hand, when it is desired to position the shift sleeve 35, that is, the shift lever 34 at the first select position SP1, the drive force switch 254 is closed (ON). As a result, as described above, the coils 40 and 41 (40
The current flowing through a, b) passes through the driving force changeover switch 254 without passing through the resistor 255. Thus, the current flowing through the coils 40, 41 (40a, 40b)
The thrust acting on the magnet movable body 36, that is, the shift sleeve 35 is set to be larger than the spring force of the coil spring 473 when the shift sleeve 35 does not pass through the moving sleeve 55. 1 and 2 against the spring force of the coil spring 473, and is stopped at the position where the moving ring 474 contacts the stopper 475. Therefore, the shift lever 34 formed integrally with the shift sleeve 35 is positioned at the first select position SP1.

Next, as shown in FIGS. 4 (b), 6 (a) and 8 (a), the shift sleeve 35 of the select actuators 3, 3a, 3b is moved to the left, that is, the other side. , The manual operation direction switch 253 is closed (ON). As a result, the first relay 16 and the second relay 1
In No. 7, since current flows through the relay coils 165 and 175, the movable pieces 164 and 174 are switched and connected to the contacts 163 and 173, respectively. Then, the manual operation switch 251 is closed (ON). At this time, if it is desired to position the shift sleeve 35, that is, the shift lever 34 at the third select position SP3 as described above, the driving force changeover switch 254 is opened (OF).
F) Maintain the state. As a result, the third
Relay 18, second relay 17, coils 40 and 41
(40a, 40b), coils 40, 41 (40
a, 40b), a current flows through the first relay 16, the fourth relay 19, the manual backup switch 251 provided in the ground circuit 21, and the resistor 255, and the shift sleeve 35 of the select actuator 3, 3a, 3b.
Are actuated to the left as shown in FIGS. 4 (b), 6 (a) and 8 (a). As described above, when the current flowing through the coils 40 and 41 (40a and 40b) passes through the resistor 255 as described above, the spring force of the coil spring 483 is larger than the thrust acting on the magnet movable body 36, that is, the shift sleeve 35. Is set to be
The shift sleeve 35 in contact with the moving ring 484 is stopped at a position where the moving ring 484 contacts one of the snap rings 481. Therefore, the shift sleeve 35
The shift lever 34 integrated with the shift lever 34 is positioned at the third select position SP3.

On the other hand, when the shift sleeve 35, that is, the shift lever 34 is to be positioned at the fourth select position SP4, the drive force changeover switch 254 is closed (ON). As a result, as described above, the coils 40 and 41 (40
The current flowing through a, b) passes through the driving force changeover switch 254 without passing through the resistor 255. Thus, the current flowing through the coils 40, 41 (40a, 40b)
If it does not pass through 55, the thrust acting on the magnet movable body 36, that is, the shift sleeve 35 is set to be larger than the spring force of the coil spring 483. Therefore, after the shift sleeve 35 comes into contact with the moving ring 484, 1 and 2 against the spring force of the coil spring 483, and is stopped at the position where the moving ring 484 contacts the stopper 485. Therefore, the shift lever 34 formed integrally with the shift sleeve 35 is located at the fourth select position SP4. As described above, according to the illustrated drive circuit 10, the drive driver 12 and the control unit 13
In the event of a failure, the select actuators 3, 3a, 3b can be operated by operating the respective manual switches provided in the manual operation switch unit 25.

Next, regarding the shift actuator 5,
This will be mainly described with reference to FIG. The shift actuator 5 shown, the select actuator 3 of the casing 31a, 31b, the first electromagnetic solenoid 6 allowed to operate the operation lever 50 mounted on the control shaft 32 which is disposed within the 31c and the second electromagnetic solenoid 7 Is provided. The actuating lever 50 has a hole 501 at its base for fitting with the control shaft 32, and a key groove 502 formed on the inner peripheral surface of the hole 501 and a key groove formed on the outer peripheral surface of the control shaft 32. Groove 3
The key 503 is fitted to the control shaft 22 so as to rotate integrally with the control shaft 32.
The operating lever 50 is disposed so as to pass through an opening 311a formed in a lower portion of the left casing 31a in FIGS.

Next, the first electromagnetic solenoid 6 will be described. The first electromagnetic solenoid 6 includes a casing 61
And a fixed iron core 62 made of a magnetic material provided in the casing 61 and a nonmagnetic material such as stainless steel provided through a through hole 621 formed in the center of the fixed iron core 62. Plunger 63, a movable core 64 made of a magnetic material mounted on plunger 63, and movable core 6
4 and an electromagnetic coil 66 wound around a bobbin 65 made of a non-magnetic material such as a synthetic resin and disposed between the fixed iron core 62 and the casing 61. In the first electromagnetic solenoid 6 configured as described above, when the electromagnetic coil 66 is energized, the movable iron core 64 is attracted to the fixed iron core 62. As a result, the plunger 63 with the movable iron core 64 mounted thereon
3 moves to the left in FIG. 3, and its tip acts on the operating lever 50 to rotate clockwise around the control shaft 32. Thus, the shift lever 34 integrally formed with the shift sleeve 35 attached to the control shaft 32 is operated to shift in one direction.

Next, the second electromagnetic solenoid 7 will be described. The second electromagnetic solenoid 7 is provided to face the first electromagnetic solenoid 6. Similarly to the first electromagnetic solenoid 6, the second electromagnetic solenoid 7 is formed at a casing 71, a fixed iron core 72 made of a magnetic material disposed in the casing 71, and a central portion of the fixed iron core 72. A plunger 73 made of a non-magnetic material such as stainless steel and arranged through the through hole 721;
And a bobbin 75 made of a non-magnetic material such as a synthetic resin, which is disposed between the movable iron core 74 and the fixed iron core 72 and the casing 71.
And an electromagnetic coil 76 wound therearound. In the second electromagnetic solenoid 7 configured as described above, when the electromagnetic coil 76 is energized, the movable iron core 74 is attracted to the fixed iron core 72. As a result, the plunger 73 to which the movable iron core 74 is attached moves rightward in FIG. 3, and the tip of the plunger 73 acts on the operating lever 50 to rotate counterclockwise around the control shaft 32. Thus, the shift lever 34 integrally formed with the shift sleeve 35 mounted on the control shaft 32 is shifted in the other direction.

The shift operating device in the illustrated embodiment is
A select position detecting sensor 8 for detecting the position of the shift sleeve 35 formed integrally with the shift lever 34, that is, the position in the select direction, is provided. The select position detecting sensor 8 is composed of a potentiometer, and one end of a lever 82 is attached to a rotating shaft 81 of the shift sleeve 35. An engaging pin 83 attached to the other end of the lever 82 is provided on the shift sleeve 35. Engagement groove 35
2 is engaged. Therefore, the shift sleeve 35 is
When the lever 82 moves left and right, the lever 82 swings around the rotation shaft 81, so that the rotation shaft 81 rotates to detect the operating position of the shift sleeve 35, that is, the select direction position. By controlling the drive circuit 10 by the control means 13 based on a signal from the select position detection sensor 8, the shift lever 34
Can be positioned at a desired select position.

The shift actuator 2 in the illustrated embodiment is provided with a shift stroke position detecting mechanism for detecting the rotational position of the control shaft 32 to which the shift sleeve 35 integrally formed with the shift lever 34 is attached, that is, the shift stroke position. A sensor 9 is provided. The shift stroke position detection sensor 9 is composed of a potentiometer, and its rotation shaft 91 is connected to the control shaft 32. Therefore, when the control shaft 32 rotates, the rotation shaft 91 rotates and the rotation position of the control shaft 32, that is, the shift stroke position can be detected.

[0042]

The drive device for the select actuator according to the present invention is constructed as described above, and has the following effects.

That is, according to the present invention, the drive circuit for supplying power to the coil constituting the select actuator which operates based on the principle of the linear motor includes a manual operation switch, a manual backup switch, By operating the manual operation direction switch, the select actuator can be operated to a predetermined select position.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a shift operation device including a first embodiment of a select actuator driven by a drive device configured according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a sectional view taken along line BB in FIG. 1;

FIG. 4 is an operation explanatory diagram of a select actuator constituting the speed change operation device shown in FIG. 1;

FIG. 5 is an essential part cross-sectional view showing a second embodiment of the select actuator constituting the speed change operation device shown in FIG. 1;

FIG. 6 is an operation explanatory diagram of the select actuator shown in FIG. 5;

FIG. 7 is an essential part cross-sectional view showing a third embodiment of the select actuator constituting the speed change operation device shown in FIG. 1;

FIG. 8 is an operation explanatory diagram of the select actuator shown in FIG. 7;

FIG. 9 is a circuit diagram showing an embodiment of a drive device for a select actuator configured according to the present invention.

FIG. 10 is an explanatory diagram showing an operation state of the drive device for the shift actuator shown in FIG. 9;

FIG. 11 is an explanatory diagram showing an operation state of the drive device for the shift actuator shown in FIG. 9;

[Explanation of symbols]

 2: gear shift operation device 3: select actuator (first embodiment) 3a: select actuator (second embodiment) 3b: select actuator (third embodiment) 31a, 31b, 31c: casing 32: control shaft 33a 33b: bearing 34: shift lever 35: shift sleeve 36: magnet movable body 361: permanent magnet 362, 363: movable yoke 36a: magnet movable body 360a: movable yoke 364a: permanent magnet 36b: magnet movable body 361b: intermediate yoke 362b 363b: permanent magnet 364b, 365b: movable yoke 39: fixed yoke 40, 41: coil 40a: coil 40b: coil 42: bobbin 47: first select position restricting means 48: second select position restricting means 5: shift Actuator 50: Moving lever 6: first electromagnetic solenoid 61: casing 62: fixed iron core 63: plunger 64: movable iron core 66: electromagnetic coil 7: second electromagnetic solenoid 71: casing 72: fixed iron core 73: plunger 74: movable iron core 76: Electromagnetic coil 8: Select position detection sensor 9: Shift stroke position detection sensor 10: Drive circuit 11: Power supply 12: Drive driver 13: Control means 14: First circuit 15: Second circuit 16: First relay 17: Second relay 18: Third relay 19: Fourth relay 22, 23, 24, 25: Ground circuit 25: Manual operation switch unit 251: Manual operation switch 252: Manual backup switch 253: Manual operation direction switch 254 : Driving force changeover switch 255: Resistance

Claims (2)

[Claims] 1. A magnet movable body disposed on an outer peripheral surface of an operating member integrally formed with a shift lever of a transmission, and a cylindrical fixed yoke disposed surrounding the magnet movable body. A drive device for a select actuator, comprising: a coil disposed inside the fixed yoke; a drive driver for supplying power to the coil; a first circuit connected to the drive driver; A second circuit, one end of the coil, first switching means capable of switching connection between the first circuit or the second circuit, and another end of the coil and the second circuit or A second switching means which can be connected and switched to the first circuit side; and a second switching means disposed in the first circuit and connected to the first switching means side and the second switching means side and the drive driver side or the power supply side. Third switchable connection switching A step, a fourth switching means disposed in the second circuit and capable of switching connection between the second switching means side and the first switching means side and the drive driver side or the ground side; A manual operation switch for energizing the switching means, a manual backup switch for energizing the third switching means and the fourth switching means, and a manual switching switch for energizing the third switching means and the fourth switching means. A drive device for a select actuator, comprising: a manual operation direction changeover switch for energizing. 2. The apparatus according to claim 1, wherein said select actuator includes select position restricting means for restricting an operation position of said shift sleeve in accordance with a thrust generated in said shift sleeve in accordance with an amount of electric power supplied to said coil. 2. The drive device for a select actuator according to claim 1, wherein a drive force changeover switch and a resistor are arranged in parallel in a circuit in which the operation switch is arranged.