摘要:
This invention relates to the troposphere delay produced when the electromagnetic waves from a satellite or astronomical body pass through the troposphere, in particular, it is related to a calculation method of an estimated value of the amount of zenith troposphere delay in real time, and troposphere delay of the satellite positioning signal in the case of positioning using the estimated value of this calculated amount of zenith troposphere delay is related with a correcting method.
摘要:
A motor controlling apparatus includes a first target torque value calculator, a frequency detector, a second target torque value calculator, a torque command value calculator, a torque limiter, and a controller. The first target torque value calculator calculates a first target torque value, which is a target value of an output torque of a motor. The frequency detector detects a motor rotational frequency. The second target torque value calculator calculates a second target torque value based on the rotational frequency. The torque command value calculator mathematically combines (e.g., adds) the first and target torque values to calculate a torque command value. The torque limiter sets the signs of the first target torque value and the torque command value to be equal to limit the torque command value according to the first target torque value. The controller controls the motor based on the limited torque command value.
摘要:
According to one embodiment, a video display apparatus includes a display module, a light source device, a video signal input module, a virtual illumination value calculator, a light source illumination value calculator, and a light source controller. The light source device is divided into light source areas in a honeycomb shape and provided with light sources to light up the light source areas. The virtual illumination value calculator calculates an area illumination value indicating the brightness of light source areas to light up based on a video signal received by the video signal input module. The light source illumination value calculator calculates a light source illumination value to light up the light sources based on the area illumination value. The light source controller lights up the light sources synchronously with the video signal being displayed on the display module based on the light source illumination value.
摘要:
A display device includes: a display unit having a first and a second display area displaying a first and a second image corresponding to first and second image data; a light source unit disposed so as to correspond to the display unit and having a plurality of unit light-emitting areas which are independently controllable; a selection unit selecting, from the plural unit light-emitting areas, a first and a second unit light-emitting area corresponding to the first and second display areas respectively; and a control signal generation unit generating a first and a second control signal controlling the selected first and second unit light-emitting areas, based on the first and second image data.
摘要:
According to one embodiment, a gain output of only light emitting elements positioning at a center portion of a light emitting element region of a light emitting portion is increased by a gain adjusting filter in a backlight control unit, and therefore, it becomes possible to decrease an output of the light emitting elements at the center portion of which drive time becomes long when a contrast of a liquid crystal is optimized. Accordingly, a variation of deterioration between the light emitting elements can be suppressed effectively even when the light emitting elements at the center portion of which drive time is long and the light emitting elements at circumferential edges of which drive time is short are mixed at the light emitting portion.
摘要:
An engine of a hybrid vehicle is lift started by reducing a rotational speed of a motor/generator of the hybrid vehicle by adjusting a gearshift ratio of a transmission coupled to the motor/generator, and engaging a clutch to couple the engine, while in a stopped state, to the rotating motor/generator for imparting the rotation to the engine.
摘要:
A method and an apparatus for regulating state of charge in a battery assembly in which respective voltages across unit cells can be equalized in a short time. Among a plurality of unit cells B1 to B4 . . . Bn, the unit cell having the largest voltage across the cell is referred to as the largest unit cell, and the unit cell having the smallest voltage across the cell is referred to as the smallest unit cell. Electric charge is transferred from the largest unit cell to a capacitor CB so that the voltage across the capacitor CB may be made higher than the voltage across the largest unit cell. Thereafter, the electric charge is transferred from the capacitor CB to the smallest unit cell thereby to equalize the voltages across the unit cells.
摘要:
In a rotatable antenna unit capable of being externally rotated away from and folded in a portable wireless device, an antenna detachment mechanism is provided, the antenna detachment mechanism composed of a bearing for rotatably supporting the antenna unit on the device by inserting therein and holding a pivot axis mounted on the device and an opening formed by cutting a part of the bearing. As a result, when an excessive external force is applied to the antenna unit being in an upright position, the opening is widened and the antenna unit comes off the portable wireless device. This prevents the antenna unit from being broken.
摘要:
A sensor is provided for detecting traveling speed of a vehicle, and a first deviation between the traveling speed and an estimated vehicle speed calculated beforehand is calculated. Based on the first deviation and a predetermined function, a feedback compensation output is calculated, and a second deviation between a value obtained by performing on the feedback compensation output and the aforesaid estimate vehicle speed is output as an estimated acceleration. Delay processing is performed on the estimated acceleration, and an estimated vehicle speed is updated. Noise mixed with the acceleration estimation process is eliminated, and the acceleration is thereby estimated with high precision.
摘要:
A rear wheel steering angle control system for a 4WS vehicle is provided. This system includes a first circuit for deriving a locus defined by a specific point provided on the front end of the vehicle, a second circuit for deriving a locus defined by a specific point provided on the rear end of the vehicle, a third circuit for providing a target steering angle for the rear wheels so that a rear corner does not overhang outwardly during turning, and a controller for controlling an actual angle for steering the rear wheels. The third circuit determines the target steering angle so as to restrict the magnitude of offset of the rear specific point from the locus of the front specific point. The controller steers the rear wheels by the target steering angle to restrict the magnitude of overhang of the rear end of the vehicle and enables the vehicle to turn within the minimum possible turning circle.