Abstract: The controller includes motor control means for controlling the drive RPM of a motor generator to reach a specified RPM less than the idle RPM when the braking condition of a foot brake is detected by a brake-operating-state detecting means while a motor generator is being rotated at an idle RPM or more. This reduces uncomfortable shock which tends to occur because of a change in the rotation of the motor during braking as much as possible to improve drive feeling.

Abstract: A control unit for a hybrid vehicle includes a take-off detection unit that detects a start of movement of the hybrid vehicle from a stopped state; and a torque control unit that limits a engine torque input to an automatic transmission from becoming excessive by generating negative torque using a regeneration operation of a motor on occasions when the start of running of the hybrid vehicle is detected by the take-off detection unit. Accordingly, it is possible to reliably inhibit problems, such as an occupant of the hybrid vehicle being caused to feel an unpleasant jolt due to torque transmitted to a driven wheel side increasing instantaneously as a result of change in an application state of a clutch during the start of movement.

Abstract: A vehicle and method of operating a vehicle including a motor that supplies a driving force to a wheel, a battery that supplies electric power to the motor and receives regenerative electric power from the motor and a controller that detects a state of the battery and sets, based on a detected state of the battery, a first upper limit value and a first lower limit value for a voltage value and an electric current value that is output from the battery to the motor, and a second upper limit value and second lower limit value for the voltage value and the electric current value that is input from the regenerative electric power to the battery.

Abstract: A control device for a hybrid vehicle, the hybrid vehicle including a motor, connected to an engine output shaft, to which an engine output is transmitted, and an automatic transmission, the automatic transmission including an input shaft, connected to the engine output shaft, and an output shaft, connected to a driving wheel, the control device including a request output detection unit that detects a driver's requested output; an engine control unit that controls the engine output; a motor control unit that controls motor output so that total output of the motor output and the engine output becomes the driver's requested output; and a limitation request output unit that, when the driver's request output is larger than input-available driving force to the input shaft of the automatic transmission, outputs a limitation request to limit the total output to limitation output, which is smaller than or equal to the input-available driving force, wherein the motor control unit, when the limitation request is output

Abstract: A fluid pressure control device including a torque converter that is placed between a output shaft of an engine and an input shaft of a transmission, a mechanical oil pump that is driven by the output shaft, a clutch that directly engages the output shaft and the input shaft by employing an engagement pressure based on a fluid pressure that is generated by the mechanical oil pump, an electric oil pump that can supply a fluid pressure to the clutch, and a control unit for controlling the electric oil pump, wherein when the engagement pressure based on the fluid pressure that is generated by the mechanical oil pump is an amount below a necessary engagement pressure that is necessary to engage the clutch, the control unit drives the electric oil pump so as to supply a fluid pressure by at least the amount to the clutch.

Abstract: A control device for a vehicle including a motor, an engine, wherein the motor can be drivingly connected with the engine, a torque converter, a transmission mechanism for transmitting the drive torque, which is transmitted via the torque converter from the engine and the motor, to drive wheels, and a controller that controls a driving state of the motor, controls a driving state of the engine, and outputs a torque reduction command for controlling a drive torque of the motor in order to place the drive torque of the motor within a maximum input torque of the transmission mechanism, wherein the maximum input torque is calculated based on a torque ratio of the torque converter when the engine begins driving after the motor begins driving.

Abstract: A control device for hybrid vehicles, including a motor drivingly connected to an engine, a transmission that transmits output torques of the engine and the motor to drive wheels, and a controller that performs torque reduction control by which an input torque to the transmission is reduced, wherein when torque reduction control is consecutively performed, the input torque is reduced at least once by a negative torque output from the motor.

Abstract: A controller of a vehicle for igniting, i.e., starting-up an engine on the basis of a load condition. When a starting condition judging device judges that the vehicle is advanced, i.e., starts moving, during an idle stop, an engine water temperature detector and a lubricating oil temperature detector of a load condition detector detect, e.g., the water temperature of the engine and the temperature of lubricating oil of an automatic speed change gear as a load condition having an influence on the magnitude of the load torque given to a motor. When an ignition condition setting device sets an ignition condition for starting the engine on the basis of the load condition and an ignition condition judging device judges that the ignition condition occurs, an engine ignition device ignites the engine. Thus, when the load with respect to the motor is large, the engine is ignited from low speed rotation and electric power consumption is reduced.

Abstract: The controller includes motor control means for controlling the drive RPM of a motor generator to reach a specified RPM less than the idle RPM when the braking condition of a foot brake is detected by a brake-operating-state detecting means while a motor generator is being rotated at an idle RPM or more. This reduces uncomfortable shock which tends to occur because of a change in the rotation of the motor during braking as much as possible to improve drive feeling.

Abstract: A control device for a hybrid vehicle, the hybrid vehicle including a motor, connected to an engine output shaft, to which an engine output is transmitted, and an automatic transmission, the automatic transmission including an input shaft, connected to the engine output shaft, and an output shaft, connected to a driving wheel, the control device including a request output detection unit that detects a driver's requested output; an engine control unit that controls the engine output; a motor control unit that controls motor output so that total output of the motor output and the engine output becomes the driver's requested output; and a limitation request output unit that, when the driver's request output is larger than input-available driving force to the input shaft of the automatic transmission, outputs a limitation request to limit the total output to limitation output, which is smaller than or equal to the input-available driving force, wherein the motor control unit, when the limitation request is output

Abstract: A control apparatus and method for a hybrid vehicle that judges whether the vehicle is running on a congested road based on an output from a sensor, causes a take-off from a first state where a gear ratio of an automatic transmission is large at a time of taking-off when running on a congested road, causes the take-off from a second state where the gear ratio of the automatic transmission is small at the time of taking-off when not running on the congested road and replenishes, by driving a motor/generator, a part of an under torque of the driving source created by taking-off from a state where the gear ratio of the automatic transmission is large, when a temporary high acceleration take-off request is made while a judgment of congested road running is maintained.

Abstract: A control unit for a hybrid vehicle includes a take-off detection unit that detects a start of movement of the hybrid vehicle from a stopped state; and a torque control unit that limits a engine torque input to an automatic transmission from becoming excessive by generating negative torque using a regeneration operation of a motor on occasions when the start of running of the hybrid vehicle is detected by the take-off detection unit. Accordingly, it is possible to reliably inhibit problems, such as an occupant of the hybrid vehicle being caused to feel an unpleasant jolt due to torque transmitted to a driven wheel side increasing instantaneously as a result of change in an application state of a clutch during the start of movement.

Abstract: A fluid pressure control device including a torque converter that is placed between a output shaft of an engine and an input shaft of a transmission, a mechanical oil pump that is driven by the output shaft, a clutch that directly engages the output shaft and the input shaft by employing an engagement pressure based on a fluid pressure that is generated by the mechanical oil pump, an electric oil pump that can supply a fluid pressure to the clutch, and a control unit for controlling the electric oil pump, wherein when the engagement pressure based on the fluid pressure that is generated by the mechanical oil pump is an amount below a necessary engagement pressure that is necessary to engage the clutch, the control unit drives the electric oil pump so as to supply a fluid pressure by at least the amount to the clutch.

Abstract: A control device for a vehicle including a motor, an engine, wherein the motor can be drivingly connected with the engine, a torque converter, a transmission mechanism for transmitting the drive torque, which is transmitted via the torque converter from the engine and the motor, to drive wheels, and a controller that controls a driving state of the motor, controls a driving state of the engine, and outputs a torque reduction command for controlling a drive torque of the motor in order to place the drive torque of the motor within a maximum input torque of the transmission mechanism, wherein the maximum input torque is calculated based on a torque ratio of the torque converter when the engine begins driving after the motor begins driving.

Abstract: A control system for a hybrid vehicle accurately determines the start (i.e. ignition) of an internal combustion engine and suppresses the peak PK in the actual rotational speed. The hybrid vehicle is provided with a motor control unit for, at the time of starting the internal combustion engine, driving the motor to rotate at a target motor rotational speed and with a vehicle control unit for, when the rotational speed of the internal combustion engine has reached a predetermined value, outputting an ignition command to start the internal combustion engine. After the ignition command is output to the internal combustion engine, the vehicle control unit calculates the difference between the target rotational speed of the motor and the actual rotational speed of the motor, and if the difference exceeds a predetermined value, determines that the ignition of the internal combustion engine has been effected. In this manner, the start of the internal combustion engine can be accurately detected.

Abstract: A control device for hybrid vehicles, including a motor drivingly connected to an engine, a transmission that transmits output torques of the engine and the motor to drive wheels, and a controller that performs torque reduction control by which an input torque to the transmission is reduced, wherein when torque reduction control is consecutively performed, the input torque is reduced at least once by a negative torque output from the motor.

Abstract: A controller of a vehicle for igniting, i.e., starting-up an engine on the basis of a load condition. When a starting condition judging device judges that the vehicle is advanced, i.e., starts moving, during an idle stop, an engine water temperature detector and a lubricating oil temperature detector of a load condition detector detect, e.g., the water temperature of the engine and the temperature of lubricating oil of an automatic speed change gear as a load condition having an influence on the magnitude of the load torque given to a motor. When an ignition condition setting device sets an ignition condition for starting the engine on the basis of the load condition and an ignition condition judging device judges that the ignition condition occurs, an engine ignition device ignites the engine. Thus, when the load with respect to the motor is large, the engine is ignited from low speed rotation and electric power consumption is reduced.

Abstract: A vehicle and method of operating a vehicle including a motor that supplies a driving force to a wheel, a battery that supplies electric power to the motor and receives regenerative electric power from the motor and a controller that detects a state of the battery and sets, based on a detected state of the battery, a first upper limit value and a first lower limit value for a voltage value and an electric current value that is output from the battery to the motor, and a second upper limit value and second lower limit value for the voltage value and the electric current value that is input from the regenerative electric power to the battery.

Abstract: A control apparatus and method for a hybrid vehicle that judges whether the vehicle is running on a congested road based on an output from a sensor, causes a take-off from a first state where a gear ratio of an automatic transmission is large at a time of taking-off when running on the congested road, causes the take-off from a second state where the gear ratio of the automatic transmission is small at the time of taking-off when not running on the congested road and replenishes, by driving a motor/generator, a part of an under torque of the driving source created by taking-off from a state where the gear ratio of the automatic transmission is large, when a temporary high acceleration take-off request is made while a judgment of congested road running is maintained

Abstract: A range switchover apparatus includes a detent mechanism for holding in respective shift positions a range switchover operating unit capable of switching over a switchover device, which switches over a shift range, among respective shift positions, a driving force stopping unit for preventing a driving force from the drive motor from being transmitted to the range switchover operating unit, a stoppage controlling unit adapted to detect a position of the range switchover operating unit to control the driving force stopping unit so as to hold the range switchover operating unit in a predetermined shift position of the detent mechanism, an environment detecting unit for detecting an environment of the drive motor, and a rotation controlling unit for controlling the drive motor at a predetermined rotational speed in response to a state of the environment detected by the environment detecting unit.