摘要:
A vehicular shift control device is provided that controls the input rotational speed of a geared transmission by adjusting the rotational speed of a drive source at downshift of the geared transmission. The greater the deceleration of the vehicle, the smaller is set the change gradient of the input rotational speed of the geared transmission. Therefore, even if the decrease rate of the post-shifting synchronization rotational speed is great, the incident angle γ of the input rotational speed of the geared transmission relative to the post-shifting synchronization rotational speed is maintained as a large angle. Even when the deceleration of the vehicle during downshift is great, the downshift is smoothly executed without producing an excessive synchronization shock.
摘要:
A vehicular shift control device is provided that controls the input rotational speed of a geared transmission by adjusting the rotational speed of a drive source at downshift of the geared transmission. The greater the deceleration of the vehicle, the smaller is set the change gradient of the input rotational speed of the geared transmission. Therefore, even if the decrease rate of the post-shifting synchronization rotational speed is great, the incident angle γ of the input rotational speed of the geared transmission relative to the post-shifting synchronization rotational speed is maintained as a large angle. Even when the deceleration of the vehicle during downshift is great, the downshift is smoothly executed without producing an excessive synchronization shock.
摘要:
In a control apparatus for a powertrain that includes an automatic transmission, occurrence of slip in a one-way clutch is determined when one gear is formed if a first rotation member and a second rotation member of the one-way clutch rotate relatively. If slip in the one-way clutch is detected, it is determined whether the rotational speed difference between the first rotation member and the second rotation member has increased. If the rotational speed difference between the first rotation member and the second rotation member has increased when slip is detected in the one-way clutch, a control is executed to engage a predetermined frictional engagement element.
摘要:
A hybrid motor vehicle includes a differential having a differential mechanism equipped with a first rotating element that is connected to an engine, a second rotating element that is connected to a first electric motor and a third rotating element connected to both a second electric motor and a transfer member; and a transmission provided in a power transmission path, extending from the transfer member to driven wheels, that establishes a plurality of transmission ranges by selectively operating a plurality of coupling devices. An irreversible rotation member connected to a non-rotation member against reverse rotation through a one-way clutch is provided in the transmission. When the second electric motor is malfunctioning, an engine start control unit starts the engine by driving the first electric motor while selectively engaging the coupling devices to connect the transfer member to the irreversible rotation member.
摘要:
When a P lock state is set on the basis of a predetermined request signal for setting the P lock state, a P position indicator lamp (62) is turned on or off on the basis of the status of power supplied to the vehicle (10). For example, when the P lock state is set, the P position indicator lamp (62) is turned off when the power status is an ALL-OFF status where a combination meter (56), or the like, is not turned on or is raised to an ACC-ON status; whereas, when the P lock state is set, the P position indicator lamp (62) is turned on when the power status is an IG-ON status, when the power status is changed from the IG-ON status during vehicle driving to the ACC-ON status, or within a predetermined period of time from when the power status is changed from the IG-ON status to the ALL-OFF status.
摘要:
It is provided a shift control device for a vehicle having a parking lock device driven by an actuator to selectively switch switching positions between a lock position and an unlock position, wherein when a run-enable operation is made by a driver and a non-running state is switched to a running state, shift position recognizing control is executed for recognizing an initial switching position appearing at the beginning when the running state is established, by driving the actuator in response to switching position information indicative of the switching position on a stage before the running state is established, wherein: the non-running state is configured to be switched to the running state prior to the execution of the run-enable operation; and updating of the switching position information, stored in the switching position information storage device, is permitted to be executed subjected to the switching position recognizing control being executed.
摘要:
An ECT_ECU of the present invention executes a program including the step of setting a determination time T for determining the completion of an upshift in an accelerator off mode to a short determination time T (X) when a slip value NS (NS=NE−NT) between an engine revolution NE and a turbine revolution NT is smaller than a predetermined slip value NS (0) (when the difference between NT and NE is large, and the step of setting the determination time T to a long determination time T (Y) when the slip value NS (NS=NE−NT) is larger than the predetermined slip value NS (0) (when the difference between NT and NE is small).
摘要:
An ECT_ECU of the present invention executes a program including the step of setting a determination time T for determining the completion of an upshift in an accelerator off mode to a short determination time T (X) when a slip value NS (NS=NE−NT) between an engine revolution NE and a turbine revolution NT is smaller than a predetermined slip value NS (0) (when the difference between NT and NE is large), and the step of setting the determination time T to a long determination time T (Y) when the slip value NS (NS=NE−NT) is larger than the predetermined slip value NS (0) (when the difference between NT and NE is small.
摘要:
A control apparatus for a hybrid vehicle drive system including (a) an engine, (b) an electrically controlled differential portion having an input shaft connected to the engine, an output shaft, a differential mechanism, and an electric motor which is operatively connected to a rotary element of the differential mechanism and an operating state of which is controlled to control a differential state between rotating speeds of the input and output shafts, (c) a hydraulically operated automatic transmission portion which constitutes a part of a power transmitting path between the electrically controlled differential portion and a drive wheel of a hybrid vehicle, (d) a hydraulic control unit for controlling the hydraulically operated automatic transmission portion, (e) a mechanical oil pump operable by the engine to deliver a pressurized working fluid to the hydraulic control unit, and (f) an electric oil pump electrically operated independently of the mechanical oil pump, to deliver a pressurized working fluid to the hydraulic control unit, the control apparatus including a hybrid-drive-system starting portion configured to operate the engine, upon starting of the hybrid vehicle drive system, for operating the mechanical oil pump to deliver the pressurized working fluid of a predetermined pressure to the hydraulic control unit.
摘要:
A hybrid motor vehicle includes a differential having a differential mechanism equipped with a first rotating element that is connected to an engine, a second rotating element that is connected to a first electric motor and a third rotating element connected to both a second electric motor and a transfer member; and a transmission provided in a power transmission path, extending from the transfer member to driven wheels, that establishes a plurality of transmission ranges by selectively operating a plurality of coupling devices. An irreversible rotation member connected to a non-rotation member against reverse rotation through a one-way clutch is provided in the transmission. When the second electric motor is malfunctioning, an engine start control unit starts the engine by driving the first electric motor while selectively engaging the coupling devices to connect the transfer member to the irreversible rotation member.