摘要:
A warning system for a vehicle obtains image data by three-dimensionally recognizing a road extending ahead of the vehicle and traffic conditions, decides that driver's wakefulness is on a high level when there is any one of psychological stimuli to the driver or that driver's wakefulness is on a low level when there is not psychological stimulus to the driver, estimates the possibilities of collision and off-lane travel, and gives the driver a warning against collision or off-lane travel when there is the high possibility of collision or off-lane travel. Another warning system for a vehicle obtains image data by three-dimensionally recognizing a road extending ahead of the vehicle and traffic conditions, discriminates between automobile roads and open roads on the basis of the image data and a traveling mode in which the vehicle is traveling, determines patterns of driving operations and traveling motions in a given time at the initial stage of travel on the road when the road is identified to be an automobile road, repeats the determination of patterns at given time intervals, detects dozed driving through the comparison of a reference value and a measured value and gives the driver a warning against dozing when the driver's wakefulness declines.
摘要:
A drive assist system of a vehicle for preventing a lane moving-out includes a pair of CCD cameras for taking picture images of the scenery in front of the vehicle, an image processing section for processing the picture images, a road/object detecting section for obtaining image data, a lane moving-out judging section for judging a lane moving-out from a lane, a roadside judging section for issuing an alarm when it judges a lane moving-out in the roadside direction, a moving-out direction obstacle judging section for issuing an alarm when there is a possibility of colliding with an obstacle on a moving-out direction lane, a lane width judging section for stopping or suppressing an alarm in case where the lane moving-out is an avoidable behavior due to the narrow width of the lane and a front direction obstacle judging section for stopping or suppressing an alarm in case where the lane moving-out is for avoiding an obstacle in front of the vehicle.
摘要:
In a drive assist system of a vehicle having a function of detecting an inter-vehicle distance between vehicles and a warning is given to a driver for preventing a collision, disclosed are an apparatus for detecting a deceleration of a preceding vehicle based on a vehicle speed of the preceding vehicle, an apparatus for establishing a safe inter-vehicle distance between the vehicle and the preceding vehicle based on the deceleration of the preceding vehicle, and an apparatus for comparing the inter-vehicle distance with the safe inter-vehicle distance and for outputting a warning signal when the inter-vehicle distance is smaller than the safe inter-vehicle distance. Thus, when the deceleration of the preceding vehicle is small, the warning is not issued until the inter-vehicle distance becomes small, whereby the driver's intention can be reflected on the drive assist system.
摘要:
A warning system estimates the possibility of the off-course travel of a vehicle while traveling through a curve before the vehicle enters the curve and gives the driver a warning properly. The warning system comprises an image recognizing means for obtaining three-dimensional image data on the road extending ahead of the vehicle and the traffic environment lying ahead of the same by recognizing conditions of the road and the traffic, a curve detecting means for detecting a curve on the basis of the image data before the vehicle enters the curve, a turning speed calculating means for calculating a reference turning speed at which average drivers will drive the vehicle traveling the curve on the basis of the radius of curvature of the curve and the width of the lane represented by the image data, a relative curve sharpness detecting means for deciding whether or not the relative sharpness of the curve is critical by comparing the reference turning speed with the actual traveling speed of the vehicle, and an off-course travel estimating means for deciding, when the relative sharpness detecting means decides that the relative sharpness of the curve is critical, whether or not the driver has carried out danger avoiding operations from signals indicating decelerating operations, and, if any danger avoiding operation is not executed, deciding that off-course travel is possible and giving a warning.
摘要:
A collision preventing apparatus of a vehicle for preventing a collision with a preceding vehicle running ahead of the vehicle has an image processor and a computer for calculating inter-vehicle distance, an inter-vehicle distance between the vehicle and the preceding vehicle, and a safe-inter vehicle distance between the vehicle and the preceding vehicle while observing a third vehicle running ahead of the preceding vehicle, judging a hazard of collision with the preceding vehicle based on the inter-vehicle distance and the safe inter-vehicle distance, and warning a driver of the hazard. Since the vehicle having the collision preventing apparatus runs calculating the inter-vehicle distance in conjunction with the third vehicle, a collision with the preceding vehicle can be prevented, even when a driver of the preceding vehicle applies an emergency brake to avoid a collision with the third vehicle running ahead of the preceding vehicle.
摘要:
In a vehicular drive assist system for warning a driver to pay attention to a preceding vehicle running ahead when a vehicle comes close to the preceding vehicle and the distance between these two vehicles becomes smaller than a safe inter-vehicle distance, this safe inter-vehicle distance is automatically established in two stages according to traffic conditions. One stage is where road is empty and another is where road is crowded. Since the safe inter-vehicle distance at the crowded condition is established to be a smaller value than the one at the empty condition, when road is crowded, due to the shortened safe inter-vehicle distance, warning is prevented from being issued so frequently.
摘要:
In an uninterruptible power supply system, control sections of three uninterruptible power supply units are connected to one another by communication cables to configure one integrated control unit. The integrated control unit brings three switches into conduction if a bias feeding mode is selected by one arbitrary operation section and brings three switches into conduction if an inverter feeding mode is selected. Therefore, there is no need to separately provide an operation section and a control section for operating and controlling all of the uninterruptible power supply units.
摘要:
A power conversion apparatus includes an inverter for converting DC power to AC power for supply to a load, a converter for converting AC power from an AC power supply to DC power for supply to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply from the AC power supply is faulty, and a filter including a reactor and a capacitor, for removing harmonics generated by the inverter. The inverter includes a three-level circuit which is a multi-level circuit.
摘要:
A reactor includes an annular iron core and four coils separately wound around the iron core. The four coils have first electrodes connected to output terminals of four choppers, respectively, and second electrodes each connected to a load. Therefore, the four choppers can be connected in parallel to the load by one reactor.
摘要:
In a non-aqueous electrolyte secondary battery 1 including a positive electrode 11, a negative electrode 12, a separator 14, a positive electrode lead 15, a negative electrode lead 16, a gasket 17, and a housing case 18, the negative electrode 12 including a negative electrode active material layer 12b including an alloy-formable active material, a resin layer 13 is formed on the surface of the negative electrode active material layer 12b. The resin layer 13 includes a resin component with lithium ion conductivity and an additive for non-aqueous electrolyte. This configuration enables the battery performance to be maintained at a high level and the battery swelling to be suppressed, even when the number of charge/discharge cycles is increased, providing the non-aqueous electrolyte secondary battery 1 with a high level of safety.