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 shift control apparatus for controlling a variable-speed ratio automatic transmission of a motor vehicle having an engine, and a motor/generator which function as a vehicle driving electric motor and/or an electric generator, the automatic transmission being operatively connected to a drive wheel and an assembly of the engine and the motor/generator, the shift control apparatus including a target determining device for determining a pattern of change of a target value of the rotating speed of a rotary member of the automatic transmission or a target value of the output torque of the automatic transmission, during a shifting action thereof, and a motor torque feedback control device for feedback controlling a torque of the motor/generator during the shifting action of the automatic transmission such that the rotating speed of the rotary member or the output torque changes according to the pattern of change of the target value.
摘要:
A hybrid drive system for a motor vehicle, wherein a controllable device such as an automatic transmission or a center differential device is disposed between drive wheels of the vehicle and a drive power source consisting of an engine operated by combustion of a fuel, and an electric motor operated with an electric energy, and the engine and/or the electric motor is/are operated for driving the motor vehicle in different running modes. The controllable device is controlled by a control device on the basis of an input torque received by the controllable device. The control device is adapted to estimate the input torque of depending upon a currently selected one of the running modes, or effect learning control of the controllable device in different manners corresponding to the different running modes.
摘要:
A hybrid drive system including an engine and an electric motor at least one of which is operated as drive power source to drive a motor vehicle in a selected one of different operation modes. The system is adapted to prevent concurrent operations to change the operation mode and the speed ratio of a power transmitting device or the ratio of torque distribution to front and rear drive wheels, or concurrent operations to change the operation mode and switch the power transmitting device from a non-drive state to a drive state, for avoiding a shock due to a torque variation which would arise from the concurrent operations. The system is alternatively adapted to cut a power transfer from the drive power source to the power transmitting device, or hold the output of the drive power source substantially constant, when the power transmitting device is switched from the non-drive state to the drive state.
摘要:
Apparatus for controlling a vehicle hybrid drive system having a transmission disposed between a vehicle drive wheel and an assembly of an engine and a motor/generator, the apparatus including a torque reduction control device for reducing an input torque of the transmission during a shifting action of the transmission, wherein the torque reduction control device includes a first torque reducing device for reducing the input torque by controlling the engine, a second torque reducing device for reducing the input torque by controlling the motor/generator, and a torque reduction mode selecting device for enabling the first torque reducing device and/or the second torque reducing device to operate to reduce the input torque, according to a predetermined selecting condition.
摘要:
A hybrid drive system for a motor vehicle, including a drive power source consisting of an engine operated by combustion of a fuel, and an electric motor operated with an electric energy, and a controller for selectively establishing a plurality of operation modes in which the drive power source is placed in respective different operating states, and wherein the controller includes a drive force control device for controlling the hybrid drive system so as to produce a substantially constant drive force for driving the vehicle, under the same running condition of the vehicle, irrespective of the currently established operation mode.
摘要:
Hybrid drive system for a motor vehicle, wherein an automatic transmission disposed between a drive wheel of the vehicle and a drive power source including an engine and an electric motor is controlled by a shift control device, to change the speed ratio according to a normal shift pattern in a normal vehicle operating state, and according to a special shift pattern in a predetermined special vehicle operating state such that the speed ratio according to the special shift pattern is smaller than the speed ratio according to the normal shift pattern, and wherein at least the engine is selected by a substitute drive power source selecting device, as the drive power source for driving the vehicle in the special operating state in which the automatic transmission is controlled according to the special shift pattern.
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:
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.