摘要:
The present invention provides a method for supplying fuel to a fuel cell, in which a monitoring period is determined for monitoring the fuel cell, and then a feeding amount of fuel is determined by integrating characteristic value generated from the fuel cell in the monitoring period. In another embodiment, it is further comprising a step of determining the variation profile associated with the characteristic value during the period so as to judge whether it is necessary to feed the fuel into the fuel cell or not. By means of the present invention, the supplying of fuel to the fuel cell under dynamic loadings can be effectively controlled for optimizing the performance of the fuel cell as well as reducing the cost without installing any fuel sensor.
摘要:
The present invention provides a method for supplying fuel to a fuel cell, which comprises steps of: (a) feeding a specific amount of a fuel into a fuel cell system; (b) determining a specific monitoring period according to a characteristic value measured from the fuel cell when subjected to a load; (c) detecting if the load is varying during the specific monitoring period ; and (d) selecting to proceed to the step (a) or (b) according the variation of the load. In one embodiment, the method further comprises a step (e) determining, if the load is not changed, whether the specific amount of fuel is enough to judge the timing for supplying the fuel. By the aforesaid method, the supplying of fuel to the fuel cell under dynamic load can be effectively controlled for optimizing the performance of the fuel cell without the use of fuel concentration sensor.
摘要:
A structure of fuel cell assembly is disclosed. A flow channel plate with a plurality of flow fields is respectively disposed on two sides of a fuel cell unit. A plurality of graphic electrodes is arranged on two sides of the fuel cell unit and the flow field matches the graphic electrodes. Thus water generated from reaction of the fuel cell is removed and further reduction of the performance of the fuel cell is avoided. Moreover, fuel is distributed more uniformly over reaction area of the cell. And the number of fuel cells stacked per unit volume is increased. Therefore, the efficiency of the fuel cell is improved.
摘要:
A structure of fuel cell assembly is disclosed. A flow channel plate with a plurality of flow fields is respectively disposed on two sides of a fuel cell unit. A plurality of graphic electrodes is arranged on two sides of the fuel cell unit and the flow field matches the graphic electrodes. Thus water generated from reaction of the fuel cell is removed and further reduction of the performance of the fuel cell is avoided. Moreover, fuel is distributed more uniformly over reaction area of the cell. And the number of fuel cells stacked per unit volume is increased. Therefore, the efficiency of the fuel cell is improved.
摘要:
An interference preventing method applied on a machining machine includes the following steps. Firstly, a control command is provided in response to an operation event. Next, protection information corresponding to a protection target component is provided. Then basic envelop of the protection target component is obtained. Then the basic envelop is segmented into a number of sub protection blocks according to a multi-hierarchical protection parameter and sub protection blocks not linked with the protection target component are removed, so as to determine a multi-hierarchical interference protection area. Next, whether an interference event of the multi-hierarchical interference protection area and other components occurs, so as to determine whether interference event of the protection target component occurs; if so, control signal is provided to control the processing operation of the machining machine.
摘要:
An apparatus and a method of synchronizing and interpolating axes of a multi-system are provide. According to the number M of operating systems, the apparatus analyzes a multi-axis process program of N axes to generate M system process programs, wherein, N≧M≧2. A synchronous code is added to the M system process programs. According to the specifications of the operating systems, a delay time compensation program is added to the M system process programs to ensure the synchronization of the systems therebetween. The characteristics of the controllers and the servos of the operation systems are adjusted to unify the characteristics of the systems. The M system process programs are outputted to the operating systems correspondingly.
摘要:
An interference preventing method applied on a machining machine includes the following steps. Firstly, a control command is provided in response to an operation event. Next, protection information corresponding to a protection target component is provided. Then basic envelop of the protection target component is obtained. Then the basic envelop is segmented into a number of sub protection blocks according to a multi-hierarchical protection parameter and sub protection blocks not linked with the protection target component are removed, so as to determine a multi-hierarchical interference protection area. Next, whether an interference event of the multi-hierarchical interference protection area and other components occurs, so as to determine whether interference event of the protection target component occurs; if so, control signal is provided to control the processing operation of the machining machine.
摘要:
An onion waveform generator and a spread spectrum clock generator (SSCG) using the same are provided. The onion waveform generator includes a value generation unit and an accumulating unit. The value generation unit outputs a counting value. The accumulating unit accumulates the counting value to output a waveform value. The accumulating unit switches from an increasing mode to a decreasing mode if the waveform value is a third boundary value, and the accumulating unit switches from the decreasing mode to the increasing mode if the waveform value is a fourth boundary value.
摘要:
A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.
摘要:
The present invention is a multiple-apparatus connection system; the multiple-apparatus connection system comprises a USB port, a controller, and a voltage determining device. The USB port connects to a peripheral device. The voltage determining device connects to the USB port to generate a detection voltage signal. The controller receives the detection voltage signal and determines the type of the connected peripheral device according to the detection voltage signal.