Abstract:
A motor control system includes: a converter; two inverters; two alternating-current motors; and a control unit. The control unit is configured to control the system voltage by feedback of a current phase of a current vector of motor current of each of the motors on a d-q coordinate plane so that rectangular wave control of at least one of the first and second motors is performed in a state where the current phase is an optimal current phase, wherein the control unit selects, as a subject of the feedback, the current phase of one of the motors that is larger than the other motor in system voltage deviation obtained based on the current vector.
Abstract:
The invention judges a total power supply/demand condition of the electricity consumers 2 as a whole according to an individual power supply/demand condition of electricity consumers 2, judges a total usable capacity of all batteries 17 according to a usable capacity of the batteries 17 of electric vehicles 10 parked at electricity consumers 2, obtains required charge/discharge amounts of all the batteries 17 according to a result of comparison of the total power supply/demand condition of the electricity consumers 2 as a whole with the total usable capacity of all the batteries 17, subjects the batteries 17 to charge/discharge controls according to the required charge/discharge amounts, the power supply/demand conditions of the electricity consumers 2, and the usable capacities of the batteries.
Abstract:
An image forming apparatus is provided with an original capturing portion, a print portion, an operation portion, a management portion that manages various provided information, and a control portion that controls the original capturing portion, the print portion, the operation portion, and the management portion. A display apparatus that has a display screen visible from a back face or a side face of the image forming apparatus is disposed on at least one side face of an image forming apparatus case, and the control portion displays various provided information managed by the management portion on the display screen.
Abstract:
A display apparatus that has a display screen visible from a back face or a side face of an image forming apparatus is disposed on at least one side face of an image forming apparatus case.
Abstract:
A vehicle has a drive control ECU that controls an internal combustion engine or a transmission on the basis of a target drive force. The drive control ECU has a first arbitrator that sets the target drive force on the basis of a driver's request and the like, and filters that have individually different damping characteristics and that correct the target drive force from the first arbitrator so that the vibration of a sprung weight of the vehicle is controlled, as well as a switch that includes a switching portion and a filter setting portion. The filter setting portion determines whether a pitching resonance frequency has changed. If having determined that the pitching resonance frequency has changed, the filter setting portion switches the filter having been used for correcting the target drive force to a filter corresponding to a post-change pitching resonance frequency.
Abstract:
A controller controls braking force and driving force of a vehicle, in accordance with demand force. The controller includes a first and second demand force arithmetic units for arithmetically calculating first and second demand force. The first demand force includes a factor inducing vibration in suspended components of the vehicle. The second demand force substantially excludes the factor inducing vibration in suspended components of the vehicle. A vibration damping filter reduces the factor from a waveform of the first demand force, thereby producing post-filter demand force. An arbitration unit compares the post-filter demand force with the second demand force, thereby selecting one of the post-filter demand force and second demand force as final demand force.
Abstract:
Target rotation speed at a reference point set at TDC slightly preceding a target stop position of engine rotation is set. A target trajectory of an engine rotation behavior extending since an engine rotation stop behavior starts until the target rotation speed at the reference point is reached is calculated based on the target rotation speed at the reference point and an engine friction. Torque of an alternator is controlled to conform the engine rotation behavior to the target trajectory during the engine rotation stop behavior. Generation of the torque of the alternator stops at a position preceding the reference point by a predetermined crank angle. Therefore, the torque of the alternator is controlled such that an energy deviation between the target trajectory and the engine rotation behavior becomes zero at the position preceding the reference point by the predetermined crank angle.
Abstract:
An estimated gradient value of a road is calculated based on a vehicle acceleration “A” and a time varying portion “A′” of a wheel speed. In a case that an acceleration corresponding value “Ggrad0” for the estimated gradient value is not regarded as indicating an exact figure, due to influences of disturbances, the acceleration corresponding value “Ggrad0” is corrected by a limiting value for rate-of-change with regard to the road gradient depending on respective vehicle speed, and by a limiting value for the road gradient. As a result, the acceleration corresponding value “Ggrad” for the estimated gradient value can be more exactly obtained.
Abstract:
A powertrain control ECU sets a target driving force, and controls an internal combustion engine and a transmission of a vehicle. A first processor of the powertrain control ECU includes a driving force adjustment portion, a filter, a mode-switch, an environmental information-obtaining device, and a steering sensor. The driving force adjustment portion sets the target driving force based on at least one of instructions from a driver and from a second processor. The filter corrects the target driving force to suppress vibration on a spring of the vehicle. The mode-switch sets the running mode. The environmental information-obtaining device obtains information on the environment around the vehicle. The steering angle sensor determines the running condition. A correction amount, by which the filter corrects the target driving force, is adjusted according to the running mode, the environment, and the running condition.
Abstract:
An image processing system according to the invention comprises a valuable information processing apparatus which manages valuable information equivalent to money, and an image forming apparatus which is connected to the valuable information processing apparatus and forms an image according to the valuable information. The image forming apparatus stores read or input image data into image data memory means. Then, image data stored in the image data memory means is invalidated when the valuable information to be managed by the valuable information processing apparatus fulfills a predetermined condition.