摘要:
A hybrid drive system for a motor vehicle, having a power drive state in which there is available a power drive mode in which an engine and an electric motor are both operated as a drive power source for driving the vehicle, and wherein a manually operated power drive selector is provided for selecting the power drive mode, and a power drive restricting device is provided to inhibit the vehicle from being driven in the power drive state and therefore in the power drive mode if the power drive selector is not manually operated. The hybrid drive system may have an engine assist drive mode in which the electric motor is operated as an auxiliary drive power source, together with the engine operated as a primary drive power source, according to a selected one of different drivability modes of the vehicle selected by a manually operated drivability performance selector.
摘要:
A hybrid drive system for a motor vehicle, including an engine, a motor/motor, an automatic transmission disposed between the engine and a vehicle drive wheel, a regenerative braking device for applying to the vehicle a regenerative braking force corresponding to an amount of electric energy generated by the motor/generator during an operation of the motor/generator by a kinetic energy of the running vehicle, and at least one of (a) a shift inhibiting device for inhibiting a shifting action of the automatic transmission during an operation of the regenerative braking device so as to prevent a change of an engine braking force applied to the vehicle, (b) a braking shift control device which is operated when the regenerative braking device is inoperable to provide the required regenerative braking force, for changing the speed ratio of the automatic transmission to increase the engine braking force, or operated prior to the operation of the regenerative braking device, for controlling the speed ratio of the transmission so as to apply the engine brake to the vehicle, and (c) a mode change inhibiting device for inhibiting a change of operation mode between regenerative braking mode and engine braking mode during regenerative braking or engine braking.
摘要:
A power transmitting system for a motor vehicle having a manually operated member for selecting one of operating states of the power transmitting system, which include a neutral state, wherein a power transmitting path between a drive power source and a drive wheel of the motor vehicle is electrically disconnected by a first power disconnecting device, and is mechanically disconnected by a second power disconnecting device which is operated in response to an operation the manually operated member to the neutral state. Also disclosed is a hybrid drive system including a start-up control device operated upon operation of the manually operated member from a non-drive state to a drive state, for controlling the reaction torque of a motor/generator to rise according to one of predetermined rise characteristics which is selected depending upon a vehicle running condition.
摘要:
A hybrid vehicle having a function for reducing the pumping loss. When the shift is in the reverse position, when an appliance is to be driven while the vehicle is in its stopped state and when the electric motor alone is able to drive the vehicle, the fuel supply to the internal combustion engine is cut off and one of the following is performed: the engine's throttle is widely opened; the engine is decompressing by opening the intake and exhaust valves; or the engine is decompressed by closing the intake valve while opening the exhaust valve. In such a manner, the pumping loss in the internal combustion engine can be reduced. Thus, the drag on the electric motor which would ordinarily be caused by stopping the internal combustion engine can be prevented without the provision of a one-way clutch or other equipment between the internal combustion engine and the electric motor.
摘要:
A drive control apparatus for an automotive vehicle having an electric motor operated by an electric energy generated by an electric generator and stored in an energy storage device, and an engine operated by combustion of a fuel, the apparatus having an electricity generating drive mode in which the vehicle is driven by the engine while the electric generator is operated by the engine to charge the electric energy storage device, wherein a changing control device is operable in the electricity generating drive mode, for controlling the engine to operate in a substantially steady state so as to provide a steady state output, and controlling electric power to be generated by the electric generator such that the electric power corresponds to surplus power of the engine which is equal to a difference between the steady state output of the engine and required vehicle drive power which is currently required to drive the vehicle and which is smaller than the steady state output.
摘要:
A vehicular drive system which includes a first electric motor, a power distributing mechanism (first gear device), a second electric motor, and a step-variable automatic transmission (second gear device), and in which the first electric motor and the power distributing mechanism constitute a first unit, while the second electric motor and the automatic transmission constitute a second unit, and wherein the power distributing mechanism has an output shaft, and the automatic transmission has an input shaft which is connected to the output shaft, whereby a drive force can be transmitted between the first unit and the second unit. The individually prepared first unit and the second unit are assembled together into the vehicular drive system such that the output shaft of the power distributing mechanism and the input shaft of the automatic transmission are connected to each other. Accordingly, the drive system has an improved efficiency of assembling.
摘要:
A rotor shaft of a first electric motor is connected to a crankshaft of the engine by being fit to a transmitting member that is coupled to the crankshaft. The stator and rotor shaft of the first electric motor are supported by a case housing the first electric motor.
摘要:
A vehicle drive device is provided having a first source of driving force and a hydraulic transmission, into which power is input from the first source of driving force, arranged axially. A motor that transmits power by an electromagnetic action between a stator and a rotor is arranged between the first source of driving force and the hydraulic transmission. The stator is arranged to be radially distant from the rotational center axis of the hydraulic transmission. A small diameter portion formed to have a smaller outer diameter than an inner diameter of the stator is formed at a motor side of the hydraulic transmission and the hydraulic transmission is arranged with the small diameter portion being inserted axially into the inner periphery of the stator. As a result, the axial length of the vehicle drive device is shortened to thereby provide a small-size, lightweight device.
摘要:
An electrically driven automotive vehicle including an electric motor for driving the vehicle, an electric energy storage device for storing an electric energy for operating the electric motor, the storage device having a plurality of storage portions which can be charged and discharged independently of each other, and a fully discharging device for fully discharging at least one of the storage portions, when an amount of electric energy stored in at least one of the other of the storage portions is larger than a predetermined threshold.
摘要:
A vehicular drive system which includes a first electric motor, a power distributing mechanism (first gear device), a second electric motor, and a step-variable automatic transmission (second gear device), and in which the first electric motor and the power distributing mechanism constitute a first unit, while the second electric motor and the automatic transmission constitute a second unit, and wherein the power distributing mechanism has an output shaft, and the automatic transmission has an input shaft which is connected to the output shaft, whereby a drive force can be transmitted between the first unit and the second unit. The individually prepared first unit and the second unit are assembled together into the vehicular drive system such that the output shaft of the power distributing mechanism and the input shaft of the automatic transmission are connected to each other. Accordingly, the drive system has an improved efficiency of assembling.