Abstract:
A transmission apparatus (8) for vehicles equipped with an automated manual transmission (12) comprising an automated manual transmission (12), provided with an input shaft (24) and an output shaft (28) wherein the input shaft (24) is configured to be selectively connected to an internal combustion engine (16),wherein the output shaft (28) is configured to be mechanically connected to at least one drive wheel (32) of a vehicle, an auxiliary electric machine (36) having an auxiliary shaft (40) and an auxiliary transmission (44) selectively connectable to the input shaft (24) and/or to the output shaft (28) of the automated manual transmission (12). The auxiliary transmission (44) comprises a single transmission selector (48) movable in three positions, wherein: - in a first upstream engagement position, a mechanical connection is made between the auxiliary shaft (40) of the auxiliary electric machine (36) and said input shaft (24), - in a second disengagement position, the auxiliary shaft (40) of the auxiliary electric machine (36) is mechanically disconnected from said input (24) and output (28) shafts, - in a third downstream engagement position, a mechanical connection is made between the auxiliary shaft (40) of the auxiliary electric machine (36) and said output shaft (28).
Abstract:
Because the engine rotational speed (NE) in a charging creep mode is higher than the MG rotational speed (NMG) in a MG creep mode, a predetermined target creep torque can be efficiently produced and fuel economy can be improved by operating a motor generator (MG) at a relatively low rotational speed in the MG creep mode. In the charging creep mode, a direct-injection engine (12) is operated at a relatively high rotational speed, whereby the predetermined target creep torque can be produced and a battery (44) can be charged while decrease in NV performance or charging efficiency, or engine stalling can be suppressed. During transition from the MG creep mode to the charging creep mode, the direct-injection engine (12) is started by ignition, and a K0 clutch (34) is connected after the engine rotational speed (NE) exceeds the MG rotational speed (NMG). Thus, compared to cranking-start, deterioration in the amount of remaining stored electricity (SOC) can be suppressed and the creep mode switching can be performed while variation in creep torque is suppressed.
Abstract:
Providing a vehicle power transmission device including a hydraulic power transmission device and enabling a shorter entire axial length. A vehicle power transmission device 12 includes a torque converter 18 and an automatic transmission 20 in a power transmission path between an engine 14 and drive wheels 16, the torque converter 18 including a rear cover 38 disposed with a plurality of pump blades 40, a turbine 42 disposed with a plurality of turbine blades 44 receiving a fluid flow from the pump blades 40, and a stator 46 disposed with a stator blade 45 disposed between the pump blades 40 and the turbine blades 44, the automatic transmission 20 transmitting power input to an input shaft 48 from the torque converter 18 to a subsequent stage. A release-side flow passage 132 acting as a circulation outward passage allowing fluid to flow toward the inside of the torque converter 18 at the time of a circulation of the fluid in the torque converter 18 is made up of a cylindrical gap 132a between the input shaft 48 and a stator shaft 62.
Abstract:
A control system and control method for a driving device which is capable of suppressing a change in a yaw moment of a vehicle when the vehicle is being decelerated during turning thereof, which in turn makes it possible to stabilize the behavior of the vehicle, and a recording medium. In the control system, opposite distribution control is performed (steps 1, 4 to 7), whereby a left driving force and a right driving force are controlled such that a yaw moment in a direction opposite to a turning direction of the vehicle acts on the vehicle, whereby a left-right driving force difference is generated which is a difference between the left driving force and the right driving force. During performance of the opposite distribution control, when deceleration of the vehicle is obtained, limit control is performed (step 8), whereby the left driving force and the right driving force are controlled such that a change in the left-right driving force difference becomes smaller than a change in a left-right driving force sum, which is the sum of the left driving force and the right driving force.
Abstract:
Provided is a power transmission device for a hybrid vehicle that rotates an oil pump at an appropriate speed and that reduces unnecessary rotation of the oil pump. The power transmission device for a hybrid vehicle includes first clutch means (1a) that is disposed in a drivetrain extending from an engine (E) to a driving wheel (D), second clutch means (1b) that is disposed in a drivetrain extending from a motor (M) to the driving wheel (D), and an oil pump (P) that is connected to the motor (M) and that is capable of supplying oil to a predetermined moving component disposed in the vehicle by using driving power of the motor (M). The power transmission device includes a transmission (A) that is disposed in a drivetrain between the engine (E) and the motor (M) and the driving wheel (D) and that is capable of adjusting rotation speed of the motor (M), and the power transmission device is capable of supplying oil by causing the motor (M) to rotate the oil pump (P) at an appropriate rotation speed.
Abstract:
The present invention relates to a method for decelerating a vehicle comprising an electrical machine being arranged to provide a controllable torque to at least one drive wheel, said vehicle including driver controllable means for actively requesting a torque for propelling the vehicle. The method includes, when a driver request for a propelling torque is reduced at least to a first extent: applying a first brake torque by means of said electrical machine, by means of said first brake torque, decelerate said vehicle to a stationary state, and by means of said electrical machine, when said vehicle has been decelerated to said stationary state, continue applying a torque by means of said electrical machine to keep said vehicle in said stationary state.