摘要:
A control device for a vehicle power transmission device includes: an electric differential portion having a differential mechanism that includes a first rotating element, a second rotating element that functions as an input rotating member coupled to an engine, and a third rotating element that functions as an output rotating member, a first electric motor coupled to the first rotating element, and a second electric motor connected to a power transmission path from the third rotating element to drive wheels in a manner enabling power transmission, the electric differential portion controlling a differential state between a rotation speed of the second rotating element and a rotation speed of the third rotating element by controlling an operation state of the first electric motor, the control device executing inertia torque compensation control that drives the first electrode motor to generate a compensation torque for reducing an inertia torque generated in the first electric motor in association with a change in rotation speed of the second electric motor at the time of acceleration of a vehicle, and the inertia torque compensation control being executed at the start of a vehicle.
摘要:
In one embodiment, when a switching clutch or a switching brake is engaged and thus a differential of a differential unit is limited, the gear ratio of a continuously variable transmission unit is adjusted. On the other hand, when the switching clutch and the switching brake are both released and thus the differential of the differential unit is not limited, an overall gear ratio obtained from the gear ratio of the differential unit and the gear ratio of the continuously variable transmission unit is adjusted.
摘要:
A hybrid drive system includes an engine; at least one rotating electric machine, wherein the engine and the at least one rotating electric machine are capable of driving a vehicle; and a controller. The controller starts a load limit control that limits a load exerted to the rotating electric machine when a temperature of the rotating electric machine exceeds a load limit start temperature; detects a loading state or a towing state of the vehicle; and determines the load limit start temperature based on the loading state or the towing state detected.
摘要:
It is provided a control device for a power transmission device including a regenerative electric motor via a stepped shifting mechanism, wherein when a shift of the stepped shifting mechanism is performed in a regenerative state of the electric motor, the control device for a power transmission device increases an input shaft rotation speed of the stepped shifting mechanism through hydraulic control before a shift ending period, and, in the shift ending period, restrains an increase of the input shaft rotation speed through the hydraulic control and controls an input shaft rotation speed of the stepped shifting mechanism with the electric motor to be a target rotation speed after the shift.
摘要:
In a control device for a vehicular power transmitting device, if engine torque TE generated with using a fuel other than a basic fuel by an internal combustion engine (8) connected to a shifting mechanism (10) for power transmitting capability, exceeds torque TES generated with using a basic fuel, a downshift is initiated at a lower accel-opening than that at which the downshift is initiated with using the basic fuel. That is, the shifting is performed at a shift point enabling the suppression of a torque increase in consideration of an increase in engine torque TE generated by the internal combustion engine, thereby preventing rotary elements of the shifting mechanism (10) from reaching high-speed rotations during a transition in downshift. This minimizes a drop in durability of the shifting mechanism (10).
摘要:
This invention relates to a control device for a vehicular power transmitting device. The control device has shifting-point altering means 108 operative such that when a second electric motor M2 is operated with priority to obtain a charging efficiency and/or electric power generating efficiency, a shifting point for a vehicle to run under a decelerating state (during a coast running state) is altered to a point on a higher vehicle speed than that at which a shifting point for a running-performance-conscious state is set. Therefore, when the second electric motor M2 is operated with priority for generating electric power, a downshift is initiated at a high vehicle speed than that at which the downshift is initiated at a shifting point for a running-performance-conscious state. This increases a rotation speed NM2 of the second electric motor M2, resulting in an increase in regeneration amount (electric power generation amount) of the second electric motor M2.
摘要:
It is provided a control device for a vehicle power transmission device having a stepped automatic transmission making up a portion of a power transmission path between an engine and a drive wheel, the control device setting a shift point of the automatic transmission in accordance with a request drive force of a driver and a vehicle speed, the control device setting a shift point of the automatic transmission in accordance with a rotation speed of the engine and a vehicle speed instead of the request drive force, if a vehicle is in a predetermined fuel consumption priority running state.
摘要:
The present invention provides, in a vehicular power transmitting apparatus including a differential portion electrically controlled, a control device which can quickly decrease the engine rotation speed, even if the operational state of an electric motor is limited. An engine-stop controlling means (112) includes limiting means for limiting the differential state of a differential portion (11) by a switching brake (B0) and a switching clutch (C0) when the operational state of a first electric motor (M1) is limited. Therefore, a torque in a direction for decreasing a rotation speed (NE) of an engine (8) is applied by limiting the differential state of the differential portion (11), for example, in a vehicle stopped state. As a result, the rotation speed (NE) of the engine (8) is quickly decreased to pass through a resonance point in a short time, whereby occurrence of resonance phenomena can be prevented.
摘要:
The hydraulic control apparatus includes a separating plate that is interposed between an upper valve body and a lower valve body. The separating plate and the lower valve body provide a projecting portion that projects toward a discharge opening side of the oil pump with respect to the upper valve body. A first oil feed path is provided at the projecting portion, is formed between the separating plate and the lower valve body, and receives the hydraulic oil from the oil pump and guides the hydraulic oil to an upper valve body disposition side.
摘要:
When a reduction in a supply hydraulic pressure to a second shift portion is sensed, an engagement command of C0 clutch is generated so that a power split device (electrical differential portion) is brought into a locked state. In the locked state, a sun gear, a carrier rotated by an engine and a ring gear rotated by a second MG integrally rotate, whereby inertia is increased. Thus, high-speed rotation of a transmission member corresponding to an input shaft of the second shift portion can be prevented.