Abstract: A power generation control device for an electric vehicle includes a power generator driven by an internal combustion engine, a drive battery that stores power generated by the power generator and sensing an SOC that is a state of charge, and a drive motor that propels a vehicle using power generated by the power generator or power stored in the drive battery. The power generation control device controls a power generation torque of the power generator to correspond to an output that is a sum of a drive request output calculated based on a manipulation separately from a drive torque of the drive motor and a battery request output calculated based on the SOC.

Abstract: A power generation control device for an electric vehicle includes a power generator driven by an internal combustion engine, a drive battery that stores power generated by the power generator and sensing an SOC that is a state of charge, and a drive motor that propels a vehicle using power generated by the power generator or power stored in the drive battery. The power generation control device controls a power generation torque of the power generator to correspond to an output that is a sum of a drive request output calculated based on a manipulation separately from a drive torque of the drive motor and a battery request output calculated based on the SOC.

Abstract: An object of the present invention is to provide a steering system for a motor-driven vehicle, which has steering operability equivalent to that of a vehicle mounted with a conventional internal combustion engine only, and has steering operability equivalent to an inherent one even during the time when fail-safe control of assist of steering force is carried out.

Abstract: A rotary electric machine control device includes a positive/negative determination section that determines whether an output torque of the rotary electric machine is positive or negative; a correction parameter setting section that sets as a correction parameter a phase difference of a sinusoidal ripple correction wave for reducing torque ripple of the rotary electric machine with respect to a magnetic pole position of the rotary electric machine depending on whether the output torque is positive or negative; and a correction wave generation section that generates the ripple correction wave on the basis of the correction parameter.

Abstract: A hybrid fuel cell system that employs a fuel cell stack and an ultracapacitor. A diode is provided on a high voltage electrical bus between the fuel cell stack and the ultracapacitor so that high voltage from the ultracapacitor does not affect the operation of the fuel cell stack. During system start-up, a by-pass switch is closed to by-pass the ultracapacitor so that power from the ultracapacitor can be used to start various system loads, such as a cathode side air compressor that provides air to the fuel cell stack. A 12 volt-to-high voltage converter is employed to provide a low power, high voltage supply from a low voltage battery to the system loads at start-up when the by-pass switch is opened, but before a fuel cell stack switch is closed.

Abstract: A rotary electric machine control device includes a positive/negative determination section that determines whether an output torque of the rotary electric machine is positive or negative; a correction parameter setting section that sets as a correction parameter a phase difference of a sinusoidal ripple correction wave for reducing torque ripple of the rotary electric machine with respect to a magnetic pole position of the rotary electric machine depending on whether the output torque is positive or negative; and a correction wave generation section that generates the ripple correction wave on the basis of the correction parameter.

Abstract: A hybrid fuel cell system that employs a fuel cell stack and an ultracapacitor. A diode is provided on a high voltage electrical bus between the fuel cell stack and the ultracapacitor so that high voltage from the ultracapacitor does not affect the operation of the fuel cell stack. During system start-up, a by-pass switch is closed to by-pass the ultracapacitor so that power from the ultracapacitor can be used to start various system loads, such as a cathode side air compressor that provides air to the fuel cell stack. A 12 volt-to-high voltage converter is employed to provide a low power, high voltage supply from a low voltage battery to the system loads at start-up when the by-pass switch is opened, but before a fuel cell stack switch is closed.

Abstract: The invention includes a target-engine-speed acquisition element that acquires a target engine speed necessary to reduce engine speed, thereby stopping the engine at a target stop position; a crank-angle acquisition element that acquires a crank angle indicative of the position of a crankshaft; and a target-engine-speed correction element that corrects the target engine speed according to the acquired crank angle. Because the target engine speed is corrected according to the crank angle, the engine can be stopped at the target stop position even if the friction in the engine, the electric motor, etc. varies, the temperature or viscosity of the lubricating and cooling oils varies, or the vehicle is accelerated or decelerated during the reduction of the engine speed.

Abstract: A hybrid vehicle drive control apparatus including an electric generator mechanically connected to an engine so as to have a differential rotation with respect to the engine, a generator brake for mechanically stopping a rotation of the generator and a controller that gradually decreases a generator torque while engaging the generator brake.

Abstract: An apparatus and a method to stably run an electrically operated vehicle is disclosed. The invention has an electric generator target torque calculation processor, a first determination processor for calculating an inertia correction determining value, a second determination processor for calculating an integral term correction determining value, a determining mode switching condition judgment processor, and a drive motor target torque calculation processor. When a determining mode switching condition exists, the drive motor target torque calculation processor switches between a first determining mode for calculating drive motor target torque, and a second determining mode for calculating the drive motor target torque. When the determining mode switching condition exists, the first determining mode and the second determining mode are switched so that the drive motor target torque is calculated on the basis of the integral term correction determining value.

Abstract: A hybrid type vehicle drive control device for preventing an engine from being stalled as a generator fixing mechanism is released. The hybrid type vehicle drive control device includes a generator connected differentially rotatably and mechanically to the engine, a generator fixing mechanism for mechanically stopping the rotation of the generator, a braking state decision device for deciding a braking state by a braking brake and a release control device for releasing the generator fixing mechanism when it is decided that an abrupt braking has been performed. When the abrupt braking is performed, the generator fixing mechanism can be released to prevent the engine speed from lowering and the engine from being stalled.

Abstract: A vehicle drive control apparatus includes buffers, as a recording portion, set for each of a plurality of storage items, each of the plurality of storage items having a different sampling cycle, and a controller that samples variable quantities, that indicate a status of a vehicle that changes with a running of the vehicle, at a sampling cycle set for each of the plurality of storage items and records the variable quantities in each of the buffers as storage data.

Abstract: An apparatus and a method to stably run an electrically operated vehicle is disclosed. The invention has an electric generator target torque calculation processor, a first determination processor for calculating an inertia correction determining value, a second determination processor for calculating an integral term correction determining value, a determining mode switching condition judgment processor, and a drive motor target torque calculation processor. When a determining mode switching condition exists, the drive motor target torque calculation processor switches between a first determining mode for calculating drive motor target torque, and a second determining mode for calculating the drive motor target torque. When the determining mode switching condition exists, the first determining mode and the second determining mode are switched so that the drive motor target torque is calculated on the basis of the integral term correction determining value.

Abstract: A hybrid vehicle including an engine, a generator motor, an output shaft connected to a drive wheel, a differential gear device including at least three gear elements that are connected to the engine, the generator motor and the output shaft, respectively; a fixing device that mechanically fixes a rotation of the generator motor; and a controller that calculates a correction value partially based on a generator motor torque and corrects an engine torque by the correction value.

Abstract: The invention includes a target-engine-speed acquisition element that acquires a target engine speed necessary to reduce engine speed, thereby stopping the engine at a target stop position; a crank-angle acquisition element that acquires a crank angle indicative of the position of a crankshaft; and a target-engine-speed correction element that corrects the target engine speed according to the acquired crank angle. Because the target engine speed is corrected according to the crank angle, the engine can be stopped at the target stop position even if the friction in the engine, the electric motor, etc. varies, the temperature or viscosity of the lubricating and cooling oils varies, or the vehicle is accelerated or decelerated during the reduction of the engine speed.

Abstract: A hybrid type vehicle drive control device for preventing an engine from being stalled as a generator fixing mechanism is released. The hybrid type vehicle drive control device includes a generator connected differentially rotatably and mechanically to the engine, a generator fixing mechanism for mechanically stopping the rotation of the generator, a braking state decision device for deciding a braking state by a braking brake and a release control device for releasing the generator fixing mechanism when it is decided that an abrupt braking has been performed. When the abrupt braking is performed, the generator fixing mechanism can be released to prevent the engine speed from lowering and the engine from being stalled.

Abstract: A vehicle drive control apparatus includes buffers, as a recording portion, set for each of a plurality of storage items, each of the plurality of storage items having a different sampling cycle, and a controller that samples variable quantities, that indicate a status of a vehicle that changes with a running of the vehicle, at a sampling cycle set for each of the plurality of storage items and records the variable quantities in each of the buffers as storage data.

Abstract: A hybrid vehicle drive control apparatus including an electric generator mechanically connected to an engine so as to have a differential rotation with respect to the engine, a generator brake for mechanically stopping a rotation of the generator and a controller that gradually decreases a generator torque while engaging the generator brake.

Abstract: A hybrid vehicle including an engine, a generator motor, an output shaft connected to a drive wheel, a differential gear device, a fixing device for mechanically fixing a rotation of the generator motor, a correction value calculation processing device for calculating a correction value based on an estimated engine torque calculated through estimation and a generator motor torque, and an engine torque correction processing device for correcting the estimated engine torque by the correction value. The correction value is calculated based on the estimated engine torque calculated through estimation and the generator motor torque, and the estimated engine torque is corrected by the correction value. Therefore, it is possible to prevent an event where after the fixation of rotation by the fixing device is removed, the rotor of the generator motor is affected by the service condition of the engine.