Abstract: There is provided a vehicle control device including: an inverter that is configured to drive an electric motor; a DC/DC converter that is configured to step down a voltage output from a high voltage battery; a pre-charge circuit including a pre-charge switch; a voltage detector that is configured to detect an input voltage input to the inverter and the DC/DC converter; and a controller. When the input voltage is lower than the input voltage at the time when pre-charge of the inverter is completed, the controller is configured to determine that power supplied from a power supply of the DC/DC converter to the DC/DC converter is not normally stopped.

Abstract: A fuel cell stack 5 adapted for an electrochemical reaction of a fuel gas to generate an electric power is provided with a working point measuring section 51 for measuring a generation voltage and a generation current of the fuel cell stack 5, and connected to a controller 7 including an output characteristic map memory 72 for storing output characteristics of the fuel cell stack 5, and a potential output power estimator 71 for estimating a potential output power of the fuel cell stack 5 based on a combination of a current generation voltage VO and a current generation current IO measured by the working point measuring section 51 and pieces of information stored in the output characteristic map memory 72.

Abstract: A fuel cell stack 5 adapted for an electrochemical reaction of a fuel gas to generate an electric power is provided with a working point measuring section 51 for measuring a generation voltage and a generation current of the fuel cell stack 5, and connected to a controller 7 including an output characteristic map memory 72 for storing output characteristics of the fuel cell stack 5, and a potential output power estimator 71 for estimating a potential output power of the fuel cell stack 5 based on a combination of a current generation voltage VO and a current generation current IO measured by the working point measuring section 51 and pieces of information stored in the output characteristic map memory 72.

Abstract: The grill shutter is disposed between the front grill and the air intake duct. The grill shutter is capable of opening or closing shutter members and regulating positions of the shutter members when being opened. When a maximum supplied flow rate of air provided by the wind during running is greater than a flow rate of air required for the hydrogen fuel battery, the required flow rate of air is established only by opening/closing control of the shutter members through a grill shutter opening instruction. If this is not the case, the grill shutter members are opened fully through the grill shutter opening instruction to maximize the volume of the wind during running taken in from the front grille. Additionally, a shortfall in the required flow rate of air for the hydrogen fuel battery is compensated for by actuating the blower through a blower speed instruction.

Abstract: The grill shutter is disposed between the front grill and the air intake duct. The grill shutter is capable of opening or closing shutter members and regulating positions of the shutter members when being opened. When a maximum supplied flow rate of air provided by the wind during running is greater than a flow rate of air required for the hydrogen fuel battery, the required flow rate of air is established only by opening/closing control of the shutter members through a grill shutter opening instruction. If this is not the case, the grill shutter members are opened fully through the grill shutter opening instruction to maximize the volume of the wind during running taken in from the front grille. Additionally, a shortfall in the required flow rate of air for the hydrogen fuel battery is compensated for by actuating the blower through a blower speed instruction.

Abstract: A front fork of a two-wheeled vehicle or the like is disclosed in which an annular free valve is provided between a taper-like valve seat surface formed in an upper surface of a valve seat member fixed to an inner periphery of a lower end portion of an inner tube and a valve stopper so as to be movable upward and downward such that an annular gap is formed with respect to an outer periphery of a hollow pipe. A leaf spring energizing the free valve to the taper-like valve seat surface is provided in an upper side of the free valve, the leaf spring having an annular portion and a plurality of hook portions extending in a radial direction to an inner periphery of the annular portion, and being formed in a flat shape in a free state.

Abstract: A front fork of a two-wheeled vehicle or the like is disclosed in which an annular free valve is provided between a taper-like valve seat surface formed in an upper surface of a valve seat member fixed to an inner periphery of a lower end portion of an inner tube and a valve stopper so as to be movable upward and downward such that an annular gap is formed with respect to an outer periphery of a hollow pipe. A leaf spring energizing the free valve to the taper-like valve seat surface is provided in an upper side of the free valve, the leaf spring having an annular portion and a plurality of hook portions extending in a radial direction to an inner periphery of the annular portion, and being formed in a flat shape in a free state.