Abstract: A control method for a hybrid vehicle includes a generator and an electric motor, the generator being configured to charge a battery by use of power of an engine, the electric motor being configured to drive driving wheels by electric power of the battery. The control method having driving the engine at a first rotation speed when a charging amount of the battery decreases to a first charging threshold; changing the engine to driving at a second rotation speed larger than the first rotation speed when the engine is driven at the first rotation speed and the charging amount decreases to a second charging threshold smaller than the first charging threshold; and continuing driving of the engine until the charging amount becomes equal to or more than a charging end threshold larger than the first charging threshold.

Abstract: A fuel economy display control method for a hybrid vehicle includes driving electric power supplied to a travel motor from a battery is generated by an electric power generation device that generates electric power by consuming fuel. The fuel economy display control method includes an electric power economy computation step in which instantaneous electric power economy according to an output of the travel motor is computed, a fuel economy computation step in which instantaneous fuel economy corresponding to the above instantaneous electric power economy is computed in accordance with an operating state set for the electric power generation device, and a display step in which the instantaneous fuel economy is displayed on a display device arranged inside a vehicle cabin.

Abstract: Provided is an operating state display method in an electric vehicle in which the drive electric power is supplied from a battery to a travel motor. The operating state display method includes an eco-level setting step of setting an eco-level with respect to an operating state of the electric vehicle based on a vehicle speed of the electric vehicle and an output of the travel motor, and a display step of displaying in a vehicle cabin an eco-level gauge configured to expand or contract according to the eco-level.

Abstract: A fuel economy display control method for a hybrid vehicle includes driving electric power supplied to a travel motor from a battery is generated by an electric power generation device that generates electric power by consuming fuel. The fuel economy display control method includes an electric power economy computation step in which instantaneous electric power economy according to an output of the travel motor is computed, a fuel economy computation step in which instantaneous fuel economy corresponding to the above instantaneous electric power economy is computed in accordance with an operating state set for the electric power generation device, and a display step in which the instantaneous fuel economy is displayed on a display device arranged inside a vehicle cabin.

Abstract: A control method for a hybrid vehicle includes a generator and an electric motor, the generator being configured to charge a battery by use of power of an engine, the electric motor being configured to drive driving wheels by electric power of the battery. The control method having driving the engine at a first rotation speed when a charging amount of the battery decreases to a first charging threshold; changing the engine to driving at a second rotation speed larger than the first rotation speed when the engine is driven at the first rotation speed and the charging amount decreases to a second charging threshold smaller than the first charging threshold; and continuing driving of the engine until the charging amount becomes equal to or more than a charging end threshold larger than the first charging threshold.

Abstract: Provided is an operating state display method in an electric vehicle in which the drive electric power is supplied from a battery to a travel motor. The operating state display method includes an eco-level setting step of setting an eco-level with respect to an operating state of the electric vehicle based on a vehicle speed of the electric vehicle and an output of the travel motor, and a display step of displaying in a vehicle cabin an eco-level gauge configured to expand or contract according to the eco-level.

Abstract: In a drive apparatus, a transmission unit mounted to a first region stops transmission of a pulse signal from a physical-quantity transmission terminal. The transmission unit transmits, from the failure information transmission terminal, a first signal indicative of an occurrence of the failure associated with the target switch when it is determined that the failure associated with the target switch has occurred, and transmits, from the physical-quantity transmission terminal, a second signal indicative of a content of the failure associated with the target switch. A controller mounted to a second region electrically isolated from the first region detects, based on the pulse signal from the physical-quantity transmission terminal, the physical quantity upon no input of the first signal to the controller. The controller identifies, based on the second signal transmitted from the physical-quantity transmission terminal, the content of the failure upon the first signal being input to the controller.

Abstract: In a drive apparatus, a transmission unit mounted to a first region stops transmission of a pulse signal from a physical-quantity transmission terminal. The transmission unit transmits, from the failure information transmission terminal, a first signal indicative of an occurrence of the failure associated with the target switch when it is determined that the failure associated with the target switch has occurred, and transmits, from the physical-quantity transmission terminal, a second signal indicative of a content of the failure associated with the target switch. A controller mounted to a second region electrically isolated from the first region detects, based on the pulse signal from the physical-quantity transmission terminal, the physical quantity upon no input of the first signal to the controller. The controller identifies, based on the second signal transmitted from the physical-quantity transmission terminal, the content of the failure upon the first signal being input to the controller.

Abstract: A control device has a unit for determining a controlled phase of a controlled voltage outputted from an inverter to a generator according to a difference between a target torque and an estimated torque of the generator, a unit for calculating an instructed vector norm of the controlled voltage from the target torque, an electrical angular speed of the generator and parameters indicating characteristics of the generator, a unit for correcting the instructed norm to an adjusted vector norm such that a phase of current flowing through the generator in response to the controlled voltage set at the controlled phase and the adjusted norm is controlled to a phase of an instructed current determined from the target torque, and a unit for controlling the generator by controlling the inverter to output the controlled voltage set at the controlled phase and the adjusted norm to the generator.

Abstract: A control device has a unit for preparing a pattern having first and second periods by comparing a triangular wave and a sine wave having an amplitude ratio set at each value of a modulation factor, and selecting one pattern corresponding to an instructed modulation factor, and a unit for applying a controlled voltage, set at low and high levels in response to first and second periods of the selected pattern, to a generator. The triangular wave has a cycle duration obtained by dividing the cycle duration of the generator by product of 3 and odd number, a crest having a level higher than the sine wave at a timing of each first period, and a trough having a level lower than the sine wave at a timing of each second period.

Abstract: A control device has a unit for preparing a pattern having first and second periods by comparing a triangular wave and a sine wave having an amplitude ratio set at each value of a modulation factor, and selecting one pattern corresponding to an instructed modulation factor, and a unit for applying a controlled voltage, set at low and high levels in response to first and second periods of the selected pattern, to a generator. The triangular wave has a cycle duration obtained by dividing the cycle duration of the generator by product of 3 and odd number, a crest having a level higher than the sine wave at a timing of each first period, and a trough having a level lower than the sine wave at a timing of each second period.

Abstract: A control device has a unit for determining a controlled phase of a controlled voltage outputted from an inverter to a generator according to a difference between a target torque and an estimated torque of the generator, a unit for calculating an instructed vector norm of the controlled voltage from the target torque, an electrical angular speed of the generator and parameters indicating characteristics of the generator, a unit for correcting the instructed norm to an adjusted vector norm such that a phase of current flowing through the generator in response to the controlled voltage set at the controlled phase and the adjusted norm is controlled to a phase of an instructed current determined from the target torque, and a unit for controlling the generator by controlling the inverter to output the controlled voltage set at the controlled phase and the adjusted norm to the generator.

Abstract: A control system for multiphase rotary electric machines is provided. The control system carries out control of the output of a multiphase rotary electric machine by operating switching elements of an inverter, so that more appropriate measure can be taken when malfunction has occurred in the inverter. A rotary shaft of an internal combustion engine, a rotary shaft of a generator and a rotary shaft of a motor are linked through a torque-splitting mechanism. The control system carries out failsafe processes, at the occurrence of short circuit in a switching element of the inverter, to control load torque of the generator so as to prevent rotation of a rotary shaft of the internal combustion engine in a non-operative state, which rotation is induced by a motive force of the motor.

Abstract: A control system for multiphase rotary electric machines is provided. The control system carries out control of the output of a multiphase rotary electric machine by operating switching elements of an inverter, so that more appropriate measure can be taken when malfunction has occurred in the inverter. A rotary shaft of an internal combustion engine, a rotary shaft of a generator and a rotary shaft of a motor are linked through a torque-splitting mechanism. The control system carries out failsafe processes, at the occurrence of short circuit in a switching element of the inverter, to control load torque of the generator so as to prevent rotation of a rotary shaft of the internal combustion engine in a non-operative state, which rotation is induced by a motive force of the motor.