transmission

Abstract

The present invention provides a transmission that enables stepless speed control through gear transmission and eliminates the need for gears equivalent to the intermediate gears found in typical stepped transmissions. [Solution] The transmission is provided with power split devices 20, 40, 60, 80, 100, 120, 140, and 160, and power integrating devices 30, 50, 70, 90, 110, 130, 150, and 170. The power split devices are differential gears or planetary gears including an LSD, and the power integrating devices are differential gears or planetary gears including an LSD.

Description

Technical Field

[0001] The present invention relates to a transmission.

Background Art

[0002] Conventionally, the mainstream transmissions are stepped transmissions, belt-type CVTs, and chain-type CVTs.

Summary of the Invention

Problems to be Solved by the Invention

[0003] According to the above transmissions, when a stepped transmission attempts to approach stepless shifting by increasing the number of steps, it becomes large and heavy, and the transmission efficiency of belt-type CVTs and chain-type CVTs is lower than that of gear transmissions.

Means for Solving the Problems

[0004] A transmission having a power split device and a power integration device, wherein the power split device is a differential gear or a planetary gear including an LSD, and the power integration device is a differential gear or a planetary gear including an LSD.

Brief Description of the Drawings

[0005] [Figure 1] It is a schematic diagram of Example 1. [Figure 2] It is a schematic diagram of Example 2. [Figure 3] It is a schematic diagram of Example 3. [Figure 4] It is a schematic diagram of Example 4. [Figure 5] It is a schematic diagram of Example 5. [Figure 6] It is a schematic diagram of Example 6. [Figure 7] It is a schematic diagram of Example 7. [Figure 8] It is a schematic diagram of Example 8. [Figure 9] It is a schematic diagram of Example 9. [Figure 10] This is a schematic diagram of this embodiment 10. [Figure 11] This is a schematic diagram of this embodiment 11. [Figure 12] This is a schematic diagram of this embodiment 12. [Figure 13] This is a schematic diagram of this embodiment 13. [Figure 14] This is a schematic diagram of this embodiment 14. [Figure 15] This is a schematic diagram of this embodiment 15. [Figure 16] This is a schematic diagram of this embodiment 16. [Figure 17] This is a schematic diagram of one embodiment of modified example 2. [Modes for carrying out the invention]

[0006] The transmission according to the present invention has a power split device on the input member (not shown) side that can be connected to a drive source, and a power integrator on the output member (not shown) side. The power split device is a differential gear (including an LSD) or a planetary gear. The power integrator is a differential gear (including an LSD) or a planetary gear.

[0007] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0008] In this embodiment, speed change is achieved by controlling both the rotational speed, which is power derived from the drive source, and the regenerative braking force provided by the motor generator 10.

[0009] In this embodiment, when the rotational speed of the input member (not shown) is constant, if the regenerative braking force of the motor generator 10 is controlled so that the rotational speed of the shaft of the motor generator 10, through which one of the rotations divided by the power split device passes, decreases, the rotational speed of the output member (not shown) increases.

[0010] According to this, the transmission according to the present invention can perform stepless shifting and also performs gear transmission, so it has higher transmission efficiency than a belt-type CVT or a chain-type CVT, and also does not require a gear corresponding to the intermediate gear in a general stepped transmission. In addition, the transmission according to the present invention can also perform stepped shifting.

[0011] FIG. 1 is a schematic diagram of Example 1, and FIG. 2 is a schematic diagram of Example 2.

[0012] In Examples 1 and 2, the power split device and the power integration device are open differentials.

[0013] Example 2 realizes the intention of Example 1 while omitting gears 24, 25, 34, and 35.

[0014] In Example 1, the shaft 26, the side gear 21, and the gear 24 provided in the motor generator 10 rotate integrally.

[0015] In Example 2, the shaft 27, the side gear 21, and the side gear 31 provided in the motor generator 10 are inserted into the central opening provided in the cross shaft (not shown) that rotatably holds the pinion gear 23, the central opening provided in the shaft 28, and the central opening provided in the cross shaft (not shown) that rotatably holds the pinion gear 33 in a non-contact manner and rotate integrally.

[0016] In Example 2, the shaft 28, the side gear 22, and the side gear 32 rotate integrally.

[0017] In Examples 1 and 2, the reciprocating rotation of the drive source is transmitted to the pinion gear 23 through the input member (not shown), the ring gear (not shown) of the open differential 20, and the differential case (not shown) of the open differential 20, and is split into the side gear 21 and the side gear 22.

[0018] One side of the rotation transmitted to the pinion gear 23 is transmitted to the pinion gear 33 via the side gear 21, gear 24 (not present in this embodiment 2), gear 34 (not present in this embodiment 2), and side gear 31.

[0019] The other side of the rotation transmitted to the pinion gear 23 is transmitted to the pinion gear 33 via the side gear 22, gear 25 (not present in this embodiment 2), gear 35 (not present in this embodiment 2), and side gear 32.

[0020] According to this, the rotational motion divided by the pinion gear 23 is integrated by the pinion gear 33 and transmitted to the output member (not shown) via the differential case (not shown) of the open differential 30 and the ring gear (not shown) of the open differential 30.

[0021] In this embodiment 2, the open differentials 20 and 30, the side gears 21 and 22, and the side gears 31 and 32 can be swapped freely, as long as the intent of this embodiment 1 is achieved, and the embodiment is not limited to the example shown in Figure 2.

[0022] Figure 3 is a schematic diagram of this embodiment 3, and Figure 4 is a schematic diagram of this embodiment 4.

[0023] In these embodiments 3 and 4, the power split device and the power integration device are planetary gears.

[0024] Embodiment 4 achieves the intent of Embodiment 3 while omitting gears 44, 45, 54, and 55.

[0025] In this embodiment 3, the shaft 46, planetary carrier 43, and gear 44 of the motor generator 10 rotate together as a single unit.

[0026] In this embodiment 4, the shaft 47 and planetary carriers 43 and 53 of the motor generator 10 rotate together as a single unit.

[0027] In this embodiment 4, the shaft 48, sun gear 41, and sun gear 51, which are loosely inserted into a central opening provided in the shaft 47 without contact, rotate together as a single unit.

[0028] In these embodiments 3 and 4, the rotational force originating from the drive source is transmitted to the planetary pinion gear 42 via an input member (not shown) and an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 40, and is divided into a sun gear 41 and a planetary carrier 43.

[0029] One of the rotational movements divided by the planetary pinion gear 42 is transmitted to the planetary pinion gear 52 via the planetary carrier 43, gear 44 (not present in this embodiment 4), gear 54 (not present in this embodiment 4), and planetary carrier 53.

[0030] The other half of the rotation divided by the planetary pinion gear 42 is transmitted to the planetary pinion gear 52 via the sun gear 41, gear 45 (not present in this embodiment 4), gear 55 (not present in this embodiment 4), and sun gear 51.

[0031] According to this, the rotation divided by the planetary pinion gear 42 is integrated by the planetary pinion gear 52 and transmitted to the output member (not shown) via an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 50.

[0032] In these embodiments 3 and 4, the role of the sun gear 41 can be replaced by the internal gear (not shown) of the planetary carrier 43 or planetary gear 40, the role of the planetary carrier 43 can be replaced by the internal gear (not shown) of the sun gear 41 or planetary gear 40, and the role of the internal gear (not shown) of the planetary gear 40 having multiple outwardly extending teeth can be replaced by the sun gear 41 or planetary carrier 43. The embodiments are not limited to the examples shown in Figures 3 and 4.

[0033] In these embodiments 3 and 4, the role of the sun gear 51 can be replaced by the internal gear (not shown) of the planetary carrier 53 or planetary gear 50, the role of the planetary carrier 53 can be replaced by the internal gear (not shown) of the sun gear 51 or planetary gear 50, and the role of the internal gear (not shown) of the planetary gear 50 having multiple outwardly extending teeth can be replaced by the sun gear 51 or planetary carrier 53. The embodiments are not limited to the examples shown in Figures 3 and 4.

[0034] Figure 5 is a schematic diagram of this embodiment 5, and Figure 6 is a schematic diagram of this embodiment 6.

[0035] In these embodiments 5 and 6, the power split device and the power integration device are open differentials.

[0036] Embodiment 6 achieves the intent of Embodiment 5 while omitting gears 64, 65, and 74.

[0037] In this embodiment 5, the shaft 66, side gear 61, and gear 64 of the motor generator 10 rotate together as a single unit.

[0038] In this embodiment 6, the shaft 67, side gear 61, and side gear 71 of the motor generator 10, which is loosely inserted without contact into the central opening provided in the cross shaft (not shown) that holds the pinion gear 63 so as to be able to rotate, and the central opening provided in the side gear 62, rotate together as a single unit.

[0039] In this embodiment 6, the side gear 62 and the differential case (not shown) of the open differential 70 rotate together.

[0040] In these embodiments 5 and 6, the rotational force originating from the drive source is transmitted to the pinion gear 63 via an input member (not shown), the ring gear of the open differential 60 (not shown), and the differential case of the open differential 60 (not shown), and is divided into a side gear 61 and a side gear 62.

[0041] One of the rotational movements divided by the pinion gear 63 is transmitted to the pinion gear 73 via the side gear 61, gear 64 (not present in this embodiment 6), gear 74 (not present in this embodiment 6), and side gear 71.

[0042] The other half of the rotation divided by the pinion gear 63 is transmitted to the pinion gear 73 via the side gear 62, gear 65 (not present in this embodiment 6), the ring gear of the open differential 70 (not shown), and the differential case of the open differential 70 (not shown).

[0043] According to this, the rotational motion divided by the pinion gear 63 is integrated by the pinion gear 73 and transmitted to the output member (not shown) via the side gear 72.

[0044] In this embodiment 6, the ring gear (not shown) of the open differential 70 may not be used. Also, in this embodiment 6, the side gear 62 and the differential case (not shown) of the open differential 70 may be integrated into a single component.

[0045] In this embodiment 6, the open differentials 60 and 70, the side gears 61 and 62, and the side gears 71 and 72 can be freely swapped as long as the intent of this embodiment 5 is achieved, and the embodiment is not limited to the example shown in Figure 6.

[0046] Figure 7 is a schematic diagram of this embodiment 7, and Figure 8 is a schematic diagram of this embodiment 8.

[0047] In these embodiments 7 and 8, the power split device and the power integration device are planetary gears.

[0048] In this embodiment 7, the shaft 86, sun gear 81, and gear 84 of the motor generator 10 rotate together as a single unit.

[0049] In this embodiment 8, the shaft 87 and the sun gears 81 and 91 of the motor generator 10 rotate as a single unit.

[0050] In this embodiment 8, the planetary carrier 83, the connecting part 88, and the internal gear (not shown) of the planetary gear 90 rotate as a single unit. The shape of the connecting part 88 is, for example, a hollow cone or hollow cylinder with the apex missing. Alternatively, it is a shape obtained by removing material from both of the above shapes. The connecting part 88 shown in Figure 8 is a shape obtained by removing material from most of it.

[0051] In these embodiments 7 and 8, the rotational force originating from the drive source is transmitted to the planetary pinion gear 82 via an input member (not shown) and an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 80, and is divided into a sun gear 81 and a planetary carrier 83.

[0052] One of the rotational movements divided by the planetary pinion gear 82 is transmitted to the planetary pinion gear 92 via the sun gear 81, gear 84 (not present in this embodiment 8), gear 94 (not present in this embodiment 8), and sun gear 91.

[0053] In this embodiment 7, the other half of the rotation divided by the planetary pinion gear 82 is transmitted to the planetary pinion gear 92 via the planetary carrier 83, the gear 85, and an internal gear (not shown) having multiple outwardly extending teeth provided on the planetary gear 90, and in this embodiment 8, via the planetary carrier 83, the connecting part 88, and the internal gear (not shown) of the planetary gear 90.

[0054] According to this configuration, the rotational motion divided by the planetary pinion gear 82 is integrated by the planetary pinion gear 92 and transmitted to the output member (not shown) via the planetary carrier 93.

[0055] In these embodiments 7 and 8, the role of the sun gear 81 can be replaced by the internal gear (not shown) of the planetary carrier 83 or planetary gear 80, the role of the planetary carrier 83 can be replaced by the internal gear (not shown) of the sun gear 81 or planetary gear 80, and the role of the internal gear (not shown) of the planetary gear 80 having multiple outwardly extending teeth can be replaced by the sun gear 81 or planetary carrier 83. The embodiments are not limited to the examples shown in Figures 7 and 8.

[0056] In these embodiments 7 and 8, the role of the sun gear 91 can be replaced by the internal gear (not shown) of the planetary carrier 93 or planetary gear 90, the role of the planetary carrier 93 can be replaced by the internal gear (not shown) of the sun gear 91 or planetary gear 90, and the role of the internal gear (not shown) of the planetary gear 90 having multiple outwardly extending teeth can be replaced by the sun gear 91 or planetary carrier 93. The embodiments are not limited to the examples shown in Figures 7 and 8. In this embodiment 8, the multiple outwardly extending teeth of the internal gear (not shown) of the planetary gear 90 can be omitted.

[0057] Figure 9 is a schematic diagram of this embodiment 9, and Figure 10 is a schematic diagram of this embodiment 10.

[0058] In these embodiments 9 and 10, the power split device and the power integration device are open differentials.

[0059] Embodiment 10 achieves the intent of Embodiment 9 while omitting gears 104 and 114.

[0060] In this embodiment 9, the shaft 105, side gear 101, and gear 104 of the motor generator 10 rotate together as a single unit.

[0061] In this embodiment 10, the shaft 106 and side gears 101 and 111 of the motor generator 10, which is loosely inserted without contact into the central opening provided in the cross shaft (not shown) that holds the pinion gear 103 so as to be able to rotate, and the central opening provided in the side gear 102, rotate together as a single unit.

[0062] In this embodiment 10, the differential case of the open differential 100 (not shown) and the differential case of the open differential 110 (not shown) rotate together.

[0063] In these embodiments 9 and 10, the rotational force originating from the drive source is transmitted to the pinion gear 103 via an input member (not shown), the ring gear of the open differential 100 (not shown), and the differential case of the open differential 100 (not shown), and is divided into a side gear 101 and a side gear 102.

[0064] One of the rotational movements divided by the pinion gear 103 is transmitted to the pinion gear 113 via the side gear 101, gear 104 (not present in this embodiment 10), gear 114 (not present in this embodiment 10), and side gear 111.

[0065] The rotation of the ring gear (not shown) of the open differential 100 is transmitted to the pinion gear 113 via the ring gear (not shown) of the open differential 110 and the differential case (not shown) of the open differential 110.

[0066] According to this, the rotational forces separated by the open differential 100 are integrated by the pinion gear 113 and transmitted to the output member (not shown) via the side gear 112.

[0067] In this embodiment 10, the ring gear (not shown) of the open differential 110 may not be used. Also in this embodiment 10, the differential case (not shown) of the open differential 100 and the differential case (not shown) of the open differential 110 may be integrated into a single component.

[0068] In this embodiment 10, the open differentials 100 and 110, the side gears 101 and 102, and the side gears 111 and 112 can be swapped freely, as long as the intent of this embodiment 9 is achieved, and the embodiment is not limited to the example shown in Figure 10.

[0069] Figure 11 is a schematic diagram of this embodiment 11, and Figure 12 is a schematic diagram of this embodiment 12.

[0070] In these embodiments 11 and 12, the power split device and the power integration device are planetary gears.

[0071] Embodiment 12 achieves the intent of Embodiment 11 while omitting gears 124 and 134.

[0072] In this embodiment 11, the shaft 125, sun gear 121, and gear 124 of the motor generator 10 rotate together as a single unit.

[0073] In this embodiment 12, the shaft 126 and the sun gears 121 and 131 of the motor generator 10 rotate together as a single unit.

[0074] In this embodiment 12, the internal gear (not shown) of the planetary gear 120 and the connecting part 127, and the internal gear (not shown) of the planetary gear 130 rotate as a single unit. The shape of the connecting part 127 is, for example, a hollow cone or hollow cylinder with the apex missing. Alternatively, it is a shape obtained by removing material from both of the above shapes. The connecting part 127 shown in Figure 12 is a shape obtained by removing material from most of it.

[0075] In these embodiments 11 and 12, the rotational force originating from the drive source is transmitted to the planetary pinion gear 122 via an input member (not shown) and an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 120, and is divided into a sun gear 121 and a planetary carrier 123.

[0076] One of the rotational movements divided by the planetary pinion gear 122 is transmitted to the planetary pinion gear 132 via the sun gear 121, gear 124 (not present in this embodiment 12), gear 134 (not present in this embodiment 12), and sun gear 131.

[0077] The rotation of the internal gear (not shown) having multiple outwardly extending teeth on the planetary gear 120 is transmitted in this embodiment 11 to the planetary pinion gear 132 via the internal gear (not shown) having multiple outwardly extending teeth on the planetary gear 130, and in this embodiment 12 via the connecting component 127 and the internal gear (not shown) of the planetary gear 130.

[0078] According to this, the rotational motion divided by the planetary gear 120 is integrated by the planetary pinion gear 132 and transmitted to the output member (not shown) via the planetary carrier 133.

[0079] In these embodiments 11 and 12, the role of the sun gear 121 can be replaced by the internal gear (not shown) of the planetary carrier 123 or planetary gear 120, the role of the planetary carrier 123 can be replaced by the internal gear (not shown) of the sun gear 121 or planetary gear 120, and the role of the internal gear (not shown) of the planetary gear 120 having multiple outwardly extending teeth can be replaced by the sun gear 121 or planetary carrier 123. The embodiments are not limited to the examples shown in Figures 11 and 12.

[0080] In these embodiments 11 and 12, the role of the sun gear 131 can be replaced by the internal gear (not shown) of the planetary carrier 133 or planetary gear 130, the role of the planetary carrier 133 can be replaced by the internal gear (not shown) of the sun gear 131 or planetary gear 130, and the role of the internal gear (not shown) of the planetary gear 130 having multiple outward-extending teeth can be replaced by the sun gear 131 or planetary carrier 133. The embodiments are not limited to the examples shown in Figures 11 and 12. In this embodiment 12, the multiple outward-extending teeth of the internal gear (not shown) of the planetary gear 130 can be omitted.

[0081] Figure 13 is a schematic diagram of this embodiment 13, and Figure 14 is a schematic diagram of this embodiment 14.

[0082] In these embodiments 13 and 14, the power split device and the power integration device are open differentials.

[0083] Embodiment 14 achieves the intent of Embodiment 13 while omitting gears 144 and 154.

[0084] In this embodiment 13, the shaft 145 and the side gear 141 of the motor generator 10 rotate together.

[0085] In this embodiment 14, the shaft 146 and side gear 141 of the motor generator 10 rotate together.

[0086] In this embodiment 14, the differential case (not shown) and side gear 151 of the open differential 140 rotate together.

[0087] In this embodiment 14, the differential case (not shown) and side gear 142 of the open differential 150 rotate together.

[0088] In these embodiments 13 and 14, the rotational force originating from the drive source is transmitted to the pinion gear 143 via an input member (not shown), the ring gear of the open differential 140 (not shown), and the differential case of the open differential 140 (not shown), and is divided into a side gear 141 and a side gear 142.

[0089] One of the rotational movements divided by the pinion gear 143 is transmitted to the pinion gear 153 via the side gear 142, gear 144 (not present in this embodiment 12), the ring gear of the open differential 150 (not shown), and the differential case of the open differential 150 (not shown).

[0090] In this embodiment 13, the rotation of the ring gear (not shown) of the open differential 140 is transmitted to the pinion gear 153 via the gear 154 and the side gear 151, and in this embodiment 14, via the differential case (not shown) of the open differential 140 and the side gear 151.

[0091] According to this, the rotational forces separated by the open differential 140 are integrated by the pinion gear 153 and transmitted to the output member (not shown) via the side gear 152.

[0092] In this embodiment 14, the ring gear (not shown) of the open differential 150 may not be used.

[0093] In this embodiment 14, the swapping of the open differential 140 and 150, the swapping of the side gears 141 and 142, and the swapping of the side gears 151 and 152 are freely possible as long as the intent of this embodiment 13 is achieved, and the embodiment is not limited to the example shown in Figure 14.

[0094] Figure 15 is a schematic diagram of this embodiment 15, and Figure 16 is a schematic diagram of this embodiment 16.

[0095] In these embodiments 15 and 16, the power split device and the power integration device are planetary gears.

[0096] Embodiment 16 achieves the intent of Embodiment 15 while omitting gears 164 and 174.

[0097] In this embodiment 15, the shaft 165 and sun gear 161 of the motor generator 10 rotate together.

[0098] In this embodiment 16, the shaft 166 and sun gear 161 of the motor generator 10 rotate together.

[0099] In this embodiment 16, the shaft 167, connecting parts 168 and 169, the internal gear (not shown) of the planetary gear 160, and the planetary carrier 173, which are loosely inserted without contact into the central opening provided in the shaft 166 and the central opening provided in the planetary carrier 163, rotate together as a single unit.

[0100] In these embodiments 15 and 16, the rotational force originating from the drive source is transmitted to the planetary pinion gear 162 via an input member (not shown) and an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 160, and is divided into a sun gear 161 and a planetary carrier 163.

[0101] In this embodiment 15, one of the rotational movements divided by the planetary pinion gear 162 is transmitted to the planetary pinion gear 172 via the planetary carrier 163, gear 164, and an internal gear (not shown) having multiple outwardly extending teeth provided by the planetary gear 170, and in this embodiment 16, via the planetary carrier 163, connecting component 175, and the internal gear (not shown) of the planetary gear 170.

[0102] The rotation of the internal gear (not shown) having multiple outwardly extending teeth on the planetary gear 160 is transmitted to the planetary pinion gear 172 via the gear 174 and the planetary carrier 173 in this embodiment 15, and via the connecting part 169, the connecting part 168, the shaft 167, and the planetary carrier 173 in this embodiment 16.

[0103] According to this, the rotational motion divided by the planetary gear 160 is integrated by the planetary pinion gear 172 and transmitted to the output member (not shown) via the sun gear 171.

[0104] The shape of the connecting part 168 is, for example, a bevel gear or helical gear with missing teeth. The shapes of the connecting parts 169 and 175 are, for example, a hollow cone or hollow cylinder with the apex missing. Alternatively, they are shapes from which weight reduction has been removed from both of the above shapes. The connecting parts 169 and 175 shown in Figure 16 show shapes from which weight reduction has been largely removed.

[0105] In these embodiments 15 and 16, the role of the sun gear 161 can be replaced by the internal gear (not shown) of the planetary carrier 163 or planetary gear 160, the role of the planetary carrier 163 can be replaced by the internal gear (not shown) of the sun gear 161 or planetary gear 160, and the role of the internal gear (not shown) of the planetary gear 160 having multiple outwardly extending teeth can be replaced by the sun gear 161 or planetary carrier 163. The embodiments are not limited to the examples shown in Figures 15 and 16.

[0106] In these embodiments 15 and 16, the role of the sun gear 171 can be replaced by the internal gear (not shown) of the planetary carrier 173 or the planetary gear 170, the role of the planetary carrier 173 can be replaced by the internal gear (not shown) of the sun gear 171 or the planetary gear 170, and the role of the internal gear (not shown) of the planetary gear 170 having multiple outwardly extending teeth can be replaced by the sun gear 171 or the planetary carrier 173. The embodiments are not limited to the examples shown in Figures 15 and 16. In this embodiment 16, the multiple outwardly extending teeth of the internal gear (not shown) of the planetary gear 170 can be omitted.

[0107] In all embodiments, in terms of achieving speed change, the control of the regenerative braking force by the motor-generator 10 can be replaced by the drive of the motor-generator 10 and the control of its rotational speed. In this case, when the rotational speed of the input member (not shown) is constant, if the motor-generator 10 is driven in a direction in which the rotational speed of the output member (not shown) increases as the rotational speed of the motor-generator 10 increases, speed increase can be achieved.

[0108] Generally, the ring gear of an open differential, a type of differential gear, is a bevel gear, but the ring gears of open differentials 20, 30, 60, 70, 100, 110, 140, and 150 are not limited to bevel gears.

[0109] Of the rotations divided by the aforementioned power split device, the components that transmit the rotation that passes through shafts 26, 27, 46, 47, 66, 67, 86, 87, 105, 106, 125, 126, 145, 146, 165, and 166 will be referred to as component A for convenience, and the components that transmit the other rotation will be referred to as component B for convenience, and the description of the transmission according to the present invention will continue using these two designations. Note that pinion gears 23, 33, 63, 73, 103, 113, 143, 153 and planetary pinion gears 42, 52, 82, 92, 122, 132, 162, and 172 are not included in components A and B.

[0110] Below, we will describe a modified example 1 of the transmission according to the present invention.

[0111] In all embodiments, in terms of achieving speed change, the control of the regenerative braking force by the motor generator 10 can be replaced by the spontaneous rotation of member B and the control of its rotational speed. By transmitting rotation originating from a drive source different from the aforementioned drive source to the elemental components of member B without going through the open differentials 20, 30, 60, 70, 100, 110, 140, 150 or the planetary gears 40, 50, 80, 90, 120, 130, 160, 170, spontaneous rotation of member B is achieved. At this time, if member B spontaneously rotates in a direction in which the rotational speed of the output member (not shown) increases as the rotational speed of member B's spontaneous rotation increases, when the rotational speed of the input member (not shown) is constant, speed increase is achieved.

[0112] In the modified example 1, the other drive source is, for example, a motor, a motor generator, an engine, or an engine without a starter motor.

[0113] Below, a modified example 2 of the transmission according to the present invention will be described.

[0114] Figure 17 is a schematic diagram of modified example 2.

[0115] Modification 2 of this embodiment incorporates the intention to enable spontaneous rotation of member B and independent drive by the motor generator 10 by adding multiple elemental components that allow the drive from the motor generator 10 to be transmitted to member B without going through the open differentials 20, 30, 60, 70, 100, 110, 140, 150 and planetary gears 40, 50, 80, 90, 120, 130, 160, 170. This modification 2 is an adaptation of Embodiment 1. The intention is to enable spontaneous rotation of member B and independent drive by the motor generator 10. This intention can also be applied to Embodiments 2 to 16.

[0116] In the modified example 2, the shaft 203 and the intermittent universal gear 201 of the motor generator 10, which are synchronized by the synchronization device 204, rotate together.

[0117] In the modified example 2, the shaft 203 and the intermittent universal gear 202 of the motor generator 10, which are synchronized by the synchronization device 205, rotate together.

[0118] In the modified example 2, the shaft 203 and the intermittent universal gear 201 are synchronized using the synchronous device 204, and at the same time, the shaft 203 and the intermittent universal gear 202 are synchronized using the synchronous device 205, thereby enabling independent drive by the motor generator 10.

[0119] In the modified example 2, when the shaft 203 and the intermittent universal gear 201 are synchronized by the synchronization device 204, if the shaft 203 and the intermittent universal gear 202 are asynchronous, regenerative braking or driving by the motor generator 10 becomes possible on the member A side.

[0120] In the modified example 2, when the shaft 203 and the intermittent swivel gear 202 are synchronized by the synchronization device 205, if the shaft 203 and the intermittent swivel gear 201 are asynchronous, it becomes possible to drive the component B side with the motor generator 10.

[0121] According to this, the drive provided by the motor generator 10 will be able to have two speed settings.

[0122] In the modified example 2, the gear that meshes with the intermittent gear 201 is not limited to gear 34, but may be a gear (not shown) that rotates integrally with gear 34, gear 24, or a gear (not shown) that rotates integrally with gear 24.

[0123] In the modified example 2, the gear that meshes with the intermittently adjustable gear 202 is not limited to gear 35, but may be a gear (not shown) that rotates integrally with gear 35, gear 25, or a gear (not shown) that rotates integrally with gear 25.

[0124] In the modified example 2, the shaft 203 may be loosely inserted without contact into the central opening provided in the shaft 36, the central opening provided in the cross shaft (not shown) that holds the pinion gear 33 so that it can rotate, and the central opening provided in the shaft 37. In this case, the intermittent gear 201 is omitted, and instead, gear 34 also serves as the intermittent gear, maintaining an intermittent relationship with the shaft 203 via the synchronous device 204. The intermittent gear 202 is also omitted, and instead, gear 35 also serves as the intermittent gear, maintaining an intermittent relationship with the shaft 203 via the synchronous device 205.

[0125] In the modified example 2, the shaft 203 may be loosely inserted without contact into a central opening provided in the shaft 26, a central opening provided in the cross shaft (not shown) that holds the pinion gear 23 in a rotatable manner, and a central opening provided in the shaft 27. In this case, the intermittent gear 201 is omitted, and instead, gear 24 also serves as an intermittent gear, maintaining an intermittent relationship with the shaft 203 via the synchronous device 204. The intermittent gear 202 is also omitted, and instead, gear 25 also serves as an intermittent gear, maintaining an intermittent relationship with the shaft 203 via the synchronous device 205.

[0126] In the modified example 2, the motor generator 10 may be located between the synchronous devices 204 and 205.

[0127] The transmission according to the present invention is not limited to the embodiments described above. The specific configuration of each part of the transmission according to the present invention can be omitted, added, substituted, replaced, or otherwise modified within the scope intended by the present invention, and can also be combined as appropriate.

[0128] For example, multiple component parts may be combined into a single component part.

[0129] For example, gears may be added as needed to change the direction of rotation.

[0130] For example, multiple teeth extending outward may be provided on any element component as needed.

[0131] For example, any shaft may be extended axially as needed.

[0132] Furthermore, for example, there is absolutely no problem with having a differential gear (including an LSD) and a planetary gear mixed together in a single embodiment.

[0133] Furthermore, for example, the shaft and gear that rotate integrally with the motor generator 10 are not limited to the aforementioned shaft and gear.

[0134] Furthermore, for example, the shaft of the motor generator 10 and the gear that rotates integrally with the shaft may transmit rotation not only by integral rotation but also through rotation transmission elements (not shown).

[0135] Furthermore, for example, the element components that can transmit rotational motion from an input member (not shown) are not limited to the aforementioned element components.

[0136] Furthermore, for example, the element component that transmits rotation to the output member (not shown) is not limited to the aforementioned element component.

[0137] Furthermore, for example, rotational transmission using any two gears can be replaced by winding transmission using chains or belts, or rotational transmission using shafts.

[0138] Furthermore, in terms of achieving gear changes, regenerative braking by the motor generator 10 can be replaced by the operation of the limited-slip differential (LSD).

[0139] Furthermore, in terms of achieving gear changes, regenerative braking by the motor generator 10 can work in conjunction with the operation of the limited-slip differential (LSD).

[0140] Alternatively, for example, rotational power transmission may be performed not by integrated rotation, by adding multiple teeth to two elemental components that rotate integrally with each of the aforementioned connecting components, and simultaneously adding multiple teeth to each of the aforementioned connecting components that mesh with each of the multiple teeth added to the two elemental components.

[0141] Alternatively, for example, independent drive by the motor generator 10 can also be achieved by adding a meshing clutch that synchronizes the rotational speed of member A and the rotational speed of member B, and engaging the meshing clutch.

[0142] Furthermore, in terms of achieving gear shifting, regenerative braking by the motor generator 10 can be replaced by adding a friction engagement member and engaging the friction engagement member. Note that the engagement includes a sliding state.

[0143] Furthermore, for example, planetary gears 40, 50, 80, 90, 120, 130, 160, and 170 are not limited to single-pinion type, but may also be double-pinion type. Explanation of Symbols

[0144] 10 Motor Generator 20 Open Differential 30 Open Differential 40 Planetary Gear 50 Planetary Gear 60 Open Differential 70 Open Differential 80 Planetary Gear 90 Planetary Gear 100 Open Differential 110 Open Differential 120 Planetary Gear 130 Planetary Gear 140 Open Differential 150 Open Differential 160 Planetary Gear 170 Planetary Gear

Claims

[Claim 1] A transmission comprising power split devices (20), (40), (60), (80), (100), (120), (140), (160) and power integration devices (30), (50), (70), (90), (110), (130), (150), (170), wherein the power split devices are differential gears or planetary gears including an LSD, and the power integration devices are differential gears or planetary gears including an LSD.

Images