Abstract: An object of the invention is to provide a hybrid vehicle drive apparatus, a control method of a hybrid vehicle drive apparatus, and a program thereof which are capable of preventing an engine (11) from racing at the time of sharp acceleration of the vehicle and therefore preventing a degraded state of exhaust gas, and therefore increasing the overall output. The invention includes: an electric power generator (16) mechanically connected to the engine (11); a drive motor (25) driven by at least one of an electric current generated by the electric power generator (16) and an electric current supplied from a battery (43); battery state detecting means for detecting a battery state of the battery (43); target drive motor torque setting means (90) for setting a target torque of the drive motor based on the battery state. In this case, the target drive motor torque is set based on the battery state.

Abstract: A hybrid drive unit including a first motor, a first planetary gear and a second motor, wherein the first planetary gear distributes and transmits a drive force transmitted from an input shaft to the first motor and an output shaft, a power output from the output shaft and the second motor are synthesized and the first motor and the first planetary gear are housed in a transmission case with the second motor spaced from the transmission case.

Abstract: A control apparatus for a vehicle includes an engine, first and second electric motors, an output shaft connected to a drive wheel 41, a differential gear device, the gear elements of which are connected to the engine, the first and second electric motors, and the output shaft, respectively, target output torque setting means for setting target output torque, control torque calculating means for setting a target output torque, and torque control means for controlling a torque in accordance with the control torque. The control torque calculating means includes engine non-rotational state forming means for bringing the engine into a non-rotational state. Since the electric motor torque can be controlled independently, the target output torque can easily be generated, allowing easy generation of a target output torque in the state where the engine is stopped as well as preventing the output torque loss.

Abstract: A hybrid vehicle drive controller, to improve driving comfort during running control, that detects the position of the vehicle and road-condition information, calculates a required deceleration, an optimal speed-change stage, and an adjustable torque. The invention includes, transmission to change the vehicle's speed on the basis of the vehicle position, road-condition information and optimal speed-change stage, and a torque control processor for driving a drive motor that generates the adjustable torque. A regenerative torque is calculated and generated on the basis of the required deceleration and the deceleration corresponding to the optimal speed-change stage.

Abstract: A hybrid vehicle control apparatus, in a vehicle having an engine; a first electric motor and a second electric motor; an output shaft connected to a drive wheel; a differential gear device whose gear elements are connected to the engine, the first and second electric motors, and the output shaft, respectively, has a generated control torque calculation processing device for calculating a control torque generated in association with an electrical control of the second electric motor; an inertia torque calculation processing device for calculating inertia torques; a target control torque calculation processing device for calculating a control torque serving as a target; and a torque control processing device for performing a torque control of the first electric motor in accordance with the control torque serving as the target. As a result, the control torque can be calculated without being affected by inertia torques, so that the drive feeling of the hybrid type vehicle does not deteriorate.

Abstract: An electronic circuit-equipped drive apparatus has an engine, and an electronic circuit which has float wirings that electrically connect solid wirings of a circuit, and which is mechanically connected to the engine. A plane (X-Z axes plane) that includes the float wirings of the electronic circuit is disposed substantially perpendicularly to an output axis of the engine (Y axis). This arrangement prevents exertion of major vibrations of the engine, which are vibrations in the directions of the X axis and the Z axis, on the float wirings in the direction of the Y axis. The vibration resistance of an electronic circuit is improved and the electronic circuit can be mechanically attached to the drive apparatus.

Abstract: A control apparatus for a vehicle includes an engine, first and second electric motors, an output shaft connected to a drive wheel 41, a differential gear device, the gear elements of which are connected to the engine, the first and second electric motors, and the output shaft, respectively, target output torque setting means for setting target output torque, control torque calculating means for setting a target output torque, and torque control means for controlling a torque in accordance with the control torque. The control torque calculating means includes engine non-rotational state forming means for bringing the engine into a non-rotational state. Since the electric motor torque can be controlled independently, the target output torque can easily be generated, allowing easy generation of a target output torque in the state where the engine is stopped as well as preventing the output torque loss.

Abstract: A control apparatus for a vehicle includes an engine, first and second electric motors, an output shaft connected to a drive wheel 41, a differential gear device, the gear elements of which are connected to the engine, the first and second electric motors, and the output shaft, respectively, target output torque setting means for setting target output torque, control torque calculating means for setting a target output torque, and torque control means for controlling a torque in accordance with the control torque. The control torque calculating means includes engine non-rotational state forming means for bringing the engine into a non-rotational state. Since the electric motor torque can be controlled independently, the target output torque can easily be generated, allowing easy generation of a target output torque in the state where the engine is stopped as well as preventing the output torque loss.

Abstract: A hybrid vehicle drive controller, to improve driving comfort during running control, that detects the position of the vehicle and road-condition information, calculates a required deceleration, an optimal speed-change stage, and an adjustable torque. The invention includes, transmission to change the vehicle's speed on the basis of the vehicle position, road-condition information and optimal speed-change stage, and a torque control processor for driving a drive motor that generates the adjustable torque. A regenerative torque is calculated and generated on the basis of the required deceleration and the deceleration corresponding to the optimal speed-change stage.

Abstract: A hybrid vehicle has an engine, a generator motor, a drive motor, a drive wheel mechanically connected to the engine, the generator motor and the drive motor, a stopping device for stopping revolution of the engine, and generator motor control processing unit for, when the hybrid vehicle is to be started, covering a shortfall of the drive force produced by the drive motor with the drive force produced by the generator motor by using a reaction force provided by the stopping device. The generator motor control processing unit causes a generator motor torque to be produced corresponding to a difference between a changing rate of a requested torque and a limiting value of a changing rate of a drive motor torque pre-set for the drive motor. Thus, the changing rate of the vehicle torque and the changing rate of the requested torque can be made equal, thereby preventing an uncomfortable sensation for the driver when the hybrid vehicle is started.

Abstract: A hybrid vehicle includes an engine and a first electric motor mechanically connected to the engine and to a drive wheel. The engine is startable by the first electric motor. The hybrid vehicle further includes: start condition satisfaction determination processing means for determining whether a variable that varies corresponding to the rotation of the drive wheel is equal to or greater than a threshold set within a range that does not exceed an upper limit value prescribed by a maximum torque of the first electric motor and a torque of the first electric motor needed to start the engine; and engine start instruction output processing means for outputting an engine start instruction if the variable is equal to or greater than the threshold. If the variable is greater than or equal to the threshold, the engine start instruction is outputted, and the engine is immediately started.

Abstract: A control apparatus for a vehicle includes an engine, first and second electric motors, an output shaft connected to a drive wheel 41, a differential gear device, the gear elements of which are connected to the engine, the first and second electric motors, and the output shaft, respectively, target output torque setting means for setting target output torque, control torque calculating means for setting a target output torque, and torque control means for controlling a torque in accordance with the control torque. The control torque calculating means includes engine non-rotational state forming means for bringing the engine into a non-rotational state. Since the electric motor torque can be controlled independently, the target output torque can easily be generated, allowing easy generation of a target output torque in the state where the engine is stopped as well as preventing the output torque loss.

Abstract: A drive unit includes an electric motor as a power source, and a simplified coolant circuit for cooling the electric motor. The drive unit further includes, in the drive unit case, a circulation passage L for coolant for cooling the motor M. A circulation passage F for a second coolant is provided separate from the circulation passage L for coolant. A heat exchange portion C within the circulation passage L for the first coolant is provided in the drive unit case for heat exchange with the second coolant in the circulation passage F, and the first coolant for cooling the electric motor is cooled by heat transfer to the second coolant in that heat exchange portion C. Accordingly, the coolant circuit in the drive unit case is simplified.

Abstract: A hybrid vehicle control apparatus, in a vehicle having an engine; a first electric motor and a second electric motor; an output shaft connected to a drive wheel; a differential gear device whose gear elements are connected to the engine, the first and second electric motors, and the output shaft, respectively, has a generated control torque calculation processing device for calculating a control torque generated in association with an electrical control of the second electric motor; an inertia torque calculation processing device for calculating inertia torques; a target control torque calculation processing device for calculating a control torque serving as a target; and a torque control processing device for performing a torque control of the first electric motor in accordance with the control torque serving as the target. As a result, the control torque can be calculated without being affected by inertia torques, so that the drive feeling of the hybrid type vehicle does not deteriorate.

Abstract: A drive unit which uses an electric motor as a power source and has an integrated inverter, with a cooling circuit for the electric motor and the inverter. The drive unit includes a drive unit case, the electric motor housed within the case, and the inverter fixed to the case. A coolant flow passage is provided between the drive unit case and the inverter. The inverter is fixed to the drive unit case through a panel wall, and a partition divides the coolant flow passage into chambers which are coextensive in parallel. As a result, the coolant which flows through the coolant flow passage acts as a two-stage heat shield, barring the heat generated by the electric motor from being transmitted to the inverter.

Abstract: In a drive unit for a hybrid vehicle, a generator-motor is arranged on a first axis and a drive motor is arranged on a second axis in parallel with the first axis. A drive unit casing houses the generator-motor, the drive motor, an inverter unit for the generator-motor and the drive motor and a smoothing condenser for smoothing power source voltage of the inverter unit. The inverter unit is attached to the drive unit casing and is diametrically disposed relative to the generator-motor and the drive motor. The smoothing condenser is attached to the inside of the drive unit casing from which an end portion thereof projects. The inverter unit can be attached to the drive unit casing as a subassembly. By the invention, the drive unit can be made more compact, and the wiring can be simplified.

Abstract: A hybrid vehicle is powered by a drive system including an internal combustion engine (11), a generator (16) and an electric motor (25). A differential gear unit (13) is arranged between the engine and the generator, which includes at least three gear elements, the first (S) being connected to the generator, the second (R) being connected to a torque output shaft (14) and the third (CR) being connected to the engine. A controller (51) is operated to control an engine speed based on an output rotation speed of the second gear element or torque output shaft detected by a sensor (53), so that rotation of the generator is restricted even if some accident happens to the generator.

Abstract: A hybrid vehicle capable of ensuring rotation of an engine output shaft at any time, regardless of whether an engine is in a driving condition or a non-driving condition. The engine 11 capable of switching between the driving condition and the non-driving condition, a generator 16, and counter-shaft 31 are mutually connected through a planetary gear unit 13, in which rotation of the generator 16 is controlled when a vehicle control device 41 selects the non-driving condition, thereby the engine output shaft 12 in the non-driving condition is rotated at any time, with the result that the driving of auxiliary machinery, which obtains rotation from the engine output shaft 12, is ensured.

Abstract: A hybrid vehicle is powered by a drive system including an internal combustion engine, a generator and an electric motor. A differential gear unit includes at least three elements, the first connecting to the generator, the second connecting to a first gear and the third connecting the internal combustion engine. A second gear is connected to the output shaft of the electric motor. A counter shaft carries a third gear meshing with the first and second gears and connects to the differential gear unit. The internal combustion engine, differential gear unit and generator are aligned on a first axis, the electric motor is aligned on a second axis parallel to the first axis, the counter shaft is aligned on a third axis parallel to the first and second axes, the differential gear unit is aligned on a fourth axis parallel to the first, second and third axes, and the third axis is disposed inside of a triangle defined by the first, second and fourth axes when viewed on end.

Abstract: A hybrid vehicle having an internal combustion engine, a generator connected with an output shaft extending from the internal combustion engine, an electric motor axially aligned with the output shaft, an output gear assembly connected to an output shaft driven by the rotor of the electric motor and positioned between the generator and the electric motor, a clutch adapted to connect and disconnect the generator to/from the output gear assembly, a differential gear unit, and a counter shaft oriented in parallel the output shaft driven by the rotor.