摘要:
When a DC/DC converter switches between a primary voltage control mode, a secondary voltage control mode, and a current limiting mode as operation modes, an I-term resetting processor outputs an I term depending on the duty ratio in the operation mode before being switched to a PID processor. The PID processor performs a PID control process based on the input I term. A drive duty ratio setter outputs a drive duty ratio immediately after the control mode switching, which is substantially equal to the duty ratio in the operation mode before being switched. As a result, the duty ratios in the operation mode before being switched and the operation mode after being switched are made continuous with respect to each other.
摘要:
A controller is capable of executing direct couple control that directly couples a first power device and a second power device without causing a DC/DC converter to convert voltage. During the direct couple control, a drive signal that causes no voltage conversion is intermittently output to at least one of a plurality of switching devices.
摘要:
When a DC/DC converter switches between a primary voltage control mode, a secondary voltage control mode, and a current limiting mode as operation modes, an I-term resetting processor outputs an I term depending on the duty ratio in the operation mode before being switched to a PID processor. The PID processor performs a PID control process based on the input I term. A drive duty ratio setter outputs a drive duty ratio immediately after the control mode switching, which is substantially equal to the duty ratio in the operation mode before being switched. As a result, the duty ratios in the operation mode before being switched and the operation mode after being switched are made continuous with respect to each other.
摘要:
A fuel cell vehicle has a motor driven by an inverter and hybrid DC power supplies including a battery and a fuel cell for supplying electric power to the motor. For preventing a fuse connected to the battery from being blown out, when a motor current Im increases, a first source current flowing from the battery is limited to a range for not blowing out the fuse, and a generated current is increased as much as the first source current is limited.
摘要:
A method protects a battery in a fuel cell vehicle, in which an inverter-driven motor is supplied with electric power from the battery and a fuel cell. If a battery voltage of the battery falls outside of a prescribed range, a primary current and a secondary current that flow through the DC/DC converter, or currents in branch paths that correspond to the primary current and the secondary current, are reduced in order to limit a charging current flowing into the battery or a discharging current flowing from the battery.
摘要:
If a lower arm device connection period is non-zero in a previous switching cycle, a first dead time is prohibited from decreasing, and if the lower arm device connection period is zero, the first dead time is allowed to decrease, wherein the first dead time is the dead time provided after the lower arm device connection period in the previous switching cycle but before an upper arm device connection period in the current switching cycle.
摘要:
An information providing device for a vehicle is provided in which when the subject vehicle (VA) transmits to a base station (20) subject vehicle information including the position, speed of travel, and direction of travel of the subject vehicle (VA), moving object information including the position, speed of travel, and direction of travel of a detected vehicle (VB), and time information including the time at which the above has been obtained, the base station (20) calculates the probability of the presence of the detected vehicle (VB) on map data based on each of the above-mentioned pieces of information and transmits to the subject vehicle (VA) prediction information about the detected vehicle (VB) present in an intersection, including the subject vehicle position, based on the subject vehicle position and the probability of the presence of the detected vehicle (VB). This enables the avoidance of an intersection collision with the detected vehicle (VB) by issuing an alert or warning to an occupant of the subject vehicle (VA) based on the prediction information. During this process, since it is unnecessary for the detected vehicle (VB) to include the same equipments with the subject vehicle (VA), it is possible for the subject vehicle (VA) to avoid an intersection collision with all the detected vehicle (VB) including a vehicle which has no device such as inter-vehicle communication means and, moreover, since it is unnecessary to provide infrastructure for each intersection, realization is possible at a low cost.
摘要:
[Problem] To suppress the deviation of a synthetic resin to be fed to a metal mold and to enable the to-be-compression-molded synthetic resin to be easily molded into a shape of a pre-molded article that is to be molded.[Means for Solution] A female mold 31 includes a moving rod 34 and female mold body 33 surrounding the moving rod 34, the female mold body 33 forming a cavity 33a that is opened upward, the moving rod 34 moving up and down between a normal position and an elevated position above the normal position, and when a synthetic resin 8 is to be fallen down from the a synthetic resin cutting/holding unit 14, the moving rod 34 moves to the elevated position so that the synthetic resin 8 falls down on the upper surface of the center member.
摘要:
A cup-type polypropylene container obtained by compression-molding a polypropylene and having at least a body portion and a bottom portion, wherein the body portion has a thickness of not larger than 1.0 mm and a value K1 relating to peak intensity ratio and/or a value K2 relating to diffraction intensity ratio as defined herein. The cup-type polypropylene container features improved falling strength in the body portion and at the open end such as flange, improved pressure strength and excellent mechanical strength in the body portion. Also disclosed is a method of molding the cup-type polypropylene container.
摘要:
A method of feeding a molten resin mass, which is capable of causing a molten resin mass to fall down into a female mold for compression molding without delay in the timing from a cylindrical transfer guide that cuts a portion of a molten resin extruded from a die head of an extruder and transfers it to a female mold for compression forming, and an apparatus therefor. The apparatus for feeding the molten resin mass has a cylindrical transfer guide which transfers a molten resin mass obtained by cutting a predetermined amount of a molten resin extruded from a die head of an extruder to a female mold for compression molding, wherein the transfer guide is provided with vibration-generating means for imparting vibration to the transfer guide. In the method of feeding the molten resin mass, the pressure in the cylindrical transfer guide is set to be higher than the pressure in the female mold for compression molding.