摘要:
A method of determining voltage conditions of a fuel cell vehicle which includes a motor as a driving force source of the vehicle, a motor control device for controlling operation of the motor, a fuel cell, to which a reaction gas is supplied, for generating electric power by an electrochemical reaction, and a battery device which is charged by the electric power generated by the fuel cell and sends and receives electrical energy to and from the motor by control of the motor control device. The method includes setting a voltage value, typically an average value, of an output voltage of the fuel cell within a range from a minimum value to a maximum value of an open circuit voltage of the battery device. Even when the fuel cell and the battery device are directly connected, overcharge or overdischarge can be prevented, thereby reducing frequency of voltage conversion.
摘要:
Provided is a gas generator which is reduced in weight and size while maintaining a sufficient strength as a pressure vessel. A gas generator (1) includes a housing (4) in a tubular shape having an opening (10) on at least one end thereof and a plug (12) inserted in the opening (10), so that an end portion (11) on the opening side is reduced in diameter and caulked in a caulking groove (13) of the plug (12), to thereby seal the opening (10), in which: the caulking groove (13) is a streak groove that extends along the periphery of the plug (12) and is rectangular in section; and the caulking groove (13) has at least one of side walls (14) forming the calking groove (13), the one side wall (14a) being closer to the center of the housing, which is orthogonal or sloped to the opening side, with respect to the axis (X) of the housing (4).
摘要:
An electric power supply system can determine a sharing ratio of an electric power so as to increase and decrease an output electric power supplied by an electric power generator in accordance with an output electric power value required for the electric power supply system, in a fuel cell following region where a frequency of a magnitude of the electric power is equal to or higher than a predetermined value in a frequency distribution of a magnitude of the electric power, and can determine the sharing ratio of the electric power so as to increase an output electric power supplied by an electricity storage device, in an assist region where the frequency is lower than a predetermined value in the frequency distribution, and can prevent an excess of discharging from an electricity storage device.
摘要:
A fuel cell vehicle has a fuel cell for generating electric power by being supplied with a reactive gas, an electric storage device, a first power supply line connected to the fuel cell, a second power supply line connected to the electric storage device, and a main DC-to-DC converter for performing bidirectional voltage conversion between the first power supply line and the second power supply line, an electric motor to propel the vehicle and a first electric accessory connected to the first power supply line, a second electric accessory having at least a portion connected to the second power supply line.
摘要:
This control method for a fuel cell vehicle includes: a target motor output power obtaining step which obtains a target motor output power corresponding to an accelerator opening degree; and a high output power control step which controls operations of a first DC-DC converter and a second DC-DC converter, such that an output voltage of a power source becomes equal to or larger than a predetermined voltage that is required for securing a desired motor output power, when the target motor output power is larger than a predetermined output power threshold value.
摘要:
A vehicular display apparatus of the invention includes a display portion that displays a predetermined graphic in accordance with a present consumption amount of energy used for moving a vehicle. The graphic displayed on the display portion changes at least one of a displayed size and a displayed color thereof in accordance with the consumption amount. The displayed size increases as the consumption amount increases. The displayed color is changed to have a longer wavelength of color as the consumption amount increases.
摘要:
A fuel cell vehicle system includes: a propulsion motor capable of driving a vehicle; a fuel cell which generates electric power by supplying a reactant gas to give an electrochemical reaction; an energy storage device which is charged by a generated output of the fuel cell and regenerative electric power of the propulsion motor; an output control device which controls an output current of the fuel cell; and a control device which calculates the regenerative electric power which can be generated by a regenerative operation of the propulsion motor as well as a chargeable power which can be charged to the energy storage device, controls the output control device so that the output current of the fuel cell is restricted when the chargeable power is less than the regenerative electric power, and controls the output control device so that restriction on the output current of the fuel cell is canceled when the chargeable power is equal to or greater than the regenerative electric power.
摘要:
A fuel cell system installed in a fuel-cell movable body. The system includes a fuel cell for generating electric power using reaction gases; a plurality of sensors for measuring states of the fuel cell; an abnormal state detecting device for detecting an abnormal state of at least one of said plurality of sensors; a substitution possibility determining device for determining whether there are one or more substitution sensors from among said plurality of sensors, each substitution sensor outputting a signal value used for setting a substitutional value for a signal value output from the sensor whose abnormal state has been detected; and a predetermined operation control device for operating the fuel cell in a predetermined operation state when the abnormal state of the sensor is detected by the abnormal state detecting device and it is determined by the substitution possibility determining device that there is no substitution sensor.
摘要:
A fuel cell vehicle can reduce the starting time while protecting the fuel cell. When starting the vehicle, a control apparatus execute an idle charging an output voltage (estimated output voltage) of the fuel cell immediately after the vehicle commences movement, in the condition where, while in the idle charging state at the time of starting the fuel cell vehicle, e.g., the state wherein generation of power by the fuel cell continues, and the value of the output current extracted from the fuel cell is being restricted to an appropriate value by a current and voltage controller, a capacitor is being charged with the restricted current. Then, the control apparatus, when detecting that the increased terminal voltage of the capacitor due to charging from the fuel cell has gone above the estimated output voltage, outputs to an output controller a control command to start power supply to a propulsion motor.
摘要:
A control apparatus calculates the capacitor maximum power (PCAPU) that can be supplied to a capacitor depending on the detected value of the temperature of the capacitor, and calculates the output power (PFC) of the fuel cell, the real power of the motor (PMOT) that actually powers the drive motor, and the load power (PAC) that actually powers an electrical load, excluding the drive motor. The control apparatus calculates the motor power limiting value (PMOTU), which is the motor power that corresponds to the capacitor maximum power (PCAPU), based on the output power (PFC) of the fuel cell, the load power (PAC) that powers the electrical load, excluding the drive motor, and the capacitor maximum power (PCAPU). The control apparatus output to the output controller a control command that directs the real power of the motor (PMOT) to take the value of the motor power limiting value (PMOTU) in the case that the real power of the motor (PMOT) is larger than the motor power limiting value (PMOTU). The drivability of a fuel cell vehicle is improved while protecting the capacitor.
摘要翻译:控制装置根据电容器的温度的检测值,计算能够提供给电容器的电容器最大功率(P SUB CAPU SUB>),并计算出输出功率(P SUB> / SUB>),实际上为驱动电动机供电的电动机的实际功率(P MOT SUB>)和实际上为负载功率(P AC SUB>) 为电力负载供电,不包括驱动电机。 控制装置基于输出功率来计算作为与电容器最大功率(P SUB CAPU SUB>)对应的电动机功率的电动机功率限制值(P> MOTU< / SUB) (P< SUB>),负载功率(P AC SUB>),不包括驱动电动机和电容器最大功率(P CAPU SUB>)。 所述控制装置向所述输出控制器输出用于指示所述电动机的实际功率(P MOT SUB>)的控制指令,以取得所述电动机功率限制值(P< MOTU< )在电动机的实际功率大于电动机功率限制值(P> MOTU SUB>)的情况下。 燃料电池车辆的驾驶性能得到改善,同时保护电容器。