Abstract: In order to achieve a simple and miniaturized structure, there is provided an interlock mechanism including a shaft disposed to be movable in an axial direction and rotatable in a rotation direction, an interlock member disposed coaxially with an outer peripheral side of the shaft so as to be rotatable integrally with the shaft in the rotation direction and immovable in the axial direction, and configured to include a first main body portion, a second main body portion, and a connection pin, a first fork from which a fork head protrudes, and a second fork from which a fork head protrudes. A first engagement target portion engaging with the fork head is cut out in the first main body portion of the interlock member. A second engagement target portion engaging with the fork head is cut out in the second main body portion of the interlock member.

Abstract: A control apparatus for a vehicular transmission including at least one dog clutch each having a first dog member mounted on a first shaft such that the first dog member is rotated together with the first shaft, and at least one second dog member each mounted to be axially adjacent to the first dog member and rotatable relative to the first shaft, first gears each mounted to be rotatable relative to the first shaft and provided with the second dog member, second gear which are mounted such that the second gears are rotated together with a second shaft parallel to the first shaft, and which mesh with the respective first gears, and a shifting mechanism for selectively placing each dog clutch in an engaged or released state.

Abstract: A first dog ring and a second dog ring are biased toward each other by means of springs. When the first dog ring and the second dog ring are moved away from each other, bias force produced by the springs is applied to the second dog ring in a direction to draw the second dog ring toward the first dog ring. Accordingly, when the first dog ring is moved away from the second dog ring during shifting, the second dog ring is drawn toward the first dog ring under the bias force, and third engaging teeth of the second dog ring and meshing teeth of a first-speed gear are promptly disengaged from each other.

Abstract: A reverse arm is pivoted by a driving pin of a reverse fork inserted into a driven hole thereof, and the reverse arm thereby moves an idle gear in an axial direction, whereby the idle gear is engaged with and disengaged from a driving gear and a driven gear of a reverse gear train. The outside diameter of the driving pin is smaller than the width between opposed flat inner side surfaces of the driven hole of the reverse arm; thus, a gap is formed between the driving pin and the inner side surfaces. A jump-over mechanism JO is provided between the reverse arm and a transmission casing for elastically urging the reverse arm outward away from a predetermined intermediate position within the pivoting range of the reverse arm and brings the driving pin in contact with one of the inner side surfaces of the driven hole.

Abstract: A power transmission control device, which is applied to a hybrid-vehicle provided with an internal combustion engine (E/G) and a motor (M/G) as power sources, includes a manual transmission and a friction clutch. When the shift position is in “neutral”, the friction clutch is in an engaged state, an accelerator opening is “0”, and a battery remaining amount SOC is less than a threshold TH, a charge condition is satisfied. When the charge condition is satisfied, charge of a battery by using an E/G torque is carried out. Specifically, the M/G is driven, by using the E/G torque, as an electrical power generator, and electric energy acquired by electric power generation by the M/G is used to charge the battery. As a result, for the HV-MT vehicle, by using the internal-combustion-engine torque, the battery for supplying the electric motor with the electric energy can be efficiently charged.

Abstract: In this power transmission control device, an EV travel mode for traveling by using only an electric-motor driving torque in a state in which a clutch torque is maintained to zero, and an EG travel mode for traveling by using the internal-combustion-engine driving torque in a state in which the clutch torque is adjusted to a value larger than zero are selectively realized depending on a travel state. In a state in which the EV travel mode is selected, when it is determined that a vehicle speed is higher than a predetermined speed Vth, “a gear position to be realized” is changed depending on the travel state of the vehicle, and when it is determined that the vehicle speed is equal to or lower than the predetermined speed Vth, “the gear position to be realized” is maintained to a current gear position independently of the travel state of the vehicle.

Abstract: An on-demand-type drive state control apparatus for a vehicle is provided. In the case where acceleration slippage occurs at drive wheels (rear wheels) of a vehicle when a drive system is in a two-wheel drive state, the drive system is switched from the two-wheel drive state to a four-wheel drive state. That is, the maximum transmittable torque of a multi-disc clutch mechanism increases from “0” to a predetermined value. In the four-wheel drive state, the maximum transmittable torque decreases stepwise from the present value by a predetermined value every time the vehicle travels over a predetermined distance in a state in which none of the wheels cause acceleration slippages. That is the clutch drive current supplied to the multi-disc clutch mechanism decreases gradually (stepwise or in a plurality of steps), and the drive torque distributed to the front wheels (rear wheels) decreases (increases) gradually.

Abstract: A drive state control apparatus is applied to a vehicle which has not only a transfer including a multi-disc clutch mechanism but also a changeover mechanism interposed in an axle and which can be switched between 2WD and 4WD. When a 2WD-to-4WD changeover condition is satisfied, the multi-disc clutch is immediately switched from a “decoupled state” to a “coupled state.” Meanwhile, a connecting operation of the changeover mechanism is started upon establishment of a state in which left and right rear wheels have no acceleration slippage, and a state in which rotational speeds of first and second axles on opposite sides of the changeover mechanism are approximately equal to each other. In addition, in the case where the left and right rear wheels have acceleration slippage after the 2WD-to-4WD changeover condition has been satisfied, an E/G output reduction control is executed. Thus, the connecting operation can be performed smoothly.

Abstract: When it is determined that a driver requests a deceleration of a vehicle (t1), a motor torque is kept to be zero. A value in the deceleration direction (deceleration torque stabilized value A) at which an engine torque is stabilized after it changes from a value in the acceleration direction to the value in the deceleration direction is predicted. Before the engine torque reaches the deceleration torque stabilized value A, the clutch torque is adjusted to be the deceleration torque stabilized value A. When the engine torque reaches the deceleration torque stabilized value A (t3), the clutch torque is gradually decreased from the deceleration torque stabilized value A, and a regeneration torque is gradually increased from zero. A decreasing slope of a vehicle torque is kept constant over a period (t1 to t3) when the vehicle torque decreases. Therefore, the vehicle can smoothly be decelerated during the deceleration of the vehicle.

Abstract: First and second clutches correspond to systems which include “first gear” and “second gear,” respectively. When the temperature of the first clutch at the time of start of the vehicle is lower than a first temperature, only the first clutch is used as a start clutch for driving the vehicle. When the temperature of the first clutch is not lower than the first temperature but is lower than a second temperature, both the first and second clutches are used as the start clutch. When the temperature of the first clutch is equal to or higher than the second temperature, only the second clutch is used as the start clutch. Thus, the higher the temperature of the first clutch, the smaller the load acting on the first clutch. When the temperature of the second clutch is high, engine torque is reduced, and a warning is issued.

Abstract: A six speed M/T includes four shafts, which are an input shaft A1, a first intermediate shaft A2, a second intermediate shaft A3, and an output shaft A4, those being parallel to one another. A single drive gear G45i is used as both a fourth-speed drive gear and a fifth-speed drive gear. The number of gear teeth of a second final drive gear Gfi2 is greater than that of a first final drive gear Gfi1. A fourth-speed driven gear G4o, a third-speed driven gear G3o, a first-speed driven gear G1o, and a second-speed driven gear G2o are arranged to the shaft A2 in this order from the side close to an engine E/G, and a fifth-speed driven gear G5o, a sixth-speed driven gear G6o, and a reverse driven gear GRo are arranged to the shaft A3 in this order from the side close to the engine E/G.

Abstract: A six speed M/T includes four shafts, which are an input shaft A1, a first intermediate shaft A2, a second intermediate shaft A3, and an output shaft A4, those being parallel to one another. A single drive gear G46i is used as both a fourth-speed drive gear and a sixth-speed drive gear. The number of gear teeth of a second final drive gear Gfi2 is greater than that of a first final drive gear Gfi1. A third-speed driven gear G3o, a fourth-speed driven gear G4o, a first-speed driven gear G1o, and a second-speed driven gear G2o are arranged to the shaft A2 in this order from the side close to an engine E/G, and a fifth-speed driven gear G5o, a sixth-speed driven gear G6o, and a reverse driven gear GRo are arranged to the shaft A3 in this order from the side close to the engine E/G.

Abstract: A transmission for a vehicle is provided with a plurality of gears supported on shaft members rotatably supported in a case to extend in an axial direction, first and second large-diameter gears soaked at lower parts thereof in lubrication oil stored in a lubrication oil storage region formed at a lower portion of the case for scooping upward lubrication oil during rotations, and first and second receivers arranged to extend in the axial direction of the shaft members for collecting the upwardly scooped lubrication oils to supply the same to parts to be lubricated. The first and large-diameter gears are arranged respectively on one and the other end sides of the plurality of gears in the axial direction. Other gears of the plurality of gears except for the first and second large-diameter gears are formed to diameters that hardly agitate the lubrication oil in the lubrication oil storage region.

Abstract: An apparatus comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one of “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral state” in which no transmission path therebetween is provided. When a kick-down-condition is satisfied, a changeover operation for changing an electric motor connection state to the OUT-Connection State is firstly performed. Thereafter, a gear position shifting operation for increasing a transmission reduction ratio is performed. After the kick-down-condition satisfied, an E/G side output torque Te and a M/G side output torque Tm is adjusted in such a manner that a sum Ts of Te and Tm continues to increase.

Abstract: An apparatus, applied to a vehicle having an internal combustion engine and an electric motor as power sources, comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one of “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral state” in which no transmission path therebetween is provided. When a changeover condition is satisfied, a period is provided in which a sum Ts of an internal-combustion-engine-side-output-torque Te and an electric-motor-side-output-torque Tm coincides with a required driving torque Tr, and an electric motor torque continues to be zero.

Abstract: An apparatus comprises a changeover mechanism which is able to change a connection state to any one of three states, i.e., “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between a transmission output shaft and the electric motor output shaft, and “a neutral connection state” in which no transmission path therebetween is provided. At a timing (time t1) at which a both-neutral-state is required during the vehicle is running, both “an operation for a changeover of the state-of-connecting of the clutch mechanism (C/T 30) from a connection-state to a shut-off-state” and “an operation for a changeover of said connection state of the changeover mechanism 50 from either one of the IN-Connection State and the OUT-Connection State to the non-connection state” are simultaneously started.

Abstract: An apparatus comprises a changeover mechanism which is able to change a connection state of an electric motor output shaft to any one of states including, “an IN-Connection State” in which a power transmission path is provided between a transmission input shaft and the electric motor output shaft, “an OUT-Connection State” in which a power transmission path is provided between the transmission output shaft and the electric motor output shaft, and “a neutral state” in which no transmission path therebetween is provided. The changeover is carried out based on a combination of a vehicle speed V and a required driving torque T. When the vehicle starts to drive, “the IN-Connection State” is selected. After the start of the vehicle and while the vehicle speed V is increasing, the changeovers to “the OUT-Connection State”, “the IN-Connection State”, and “the neutral state” are sequentially carried out.

Abstract: A lubricating mechanism includes: a rotational shaft; a casing housing a rear-end of the rotational shaft; a bearing between the rotational shaft and the casing; and an oil seal between the casing and one of the rotational shaft and a member rotatable with the rotational shaft in a space behind the bearing. The rotational shaft includes: a first oil passage extending from a front of the bearing towards the bearing; a second oil passage extending radially under the bearing, one side thereof communicating with the first oil passage and the other side thereof opening at a periphery of the rotational shaft; and a third oil passage extending between the periphery of the rotational shaft and an inner periphery of the bearing, one side thereof communicating with the other side of the second oil passage and the other side thereof communicating with the space.