公开(公告)号：US20030105562A1

公开(公告)日：2003-06-05

申请号：US09997010

申请日：2001-11-30

Applicant: Industrial Technology Research Institute

Inventor： Jui-Sheng Hsiao ,  Chien-Tsung Wu ,  Chi-Tang Hsu ,  Jin-Chyuan Hung ,  Ping-Huei Shu

IPC: B60L011/00

CPC classification number: B60L58/40 ,  B60L2210/10 ,  Y02T10/7216 ,  Y02T90/16 ,  Y02T90/34

Abstract: The present invention is a power output control system for electric vehicle with hybrid fuel cell, which is an optimal design of DC/DC converter and applies the controller area network (CAN) as a connected instrument for communication to make a power source tend to be more flexible. When the invention is designed in the states of medium and low loads (for example, cruise in constant speed), the main electric energy supplied by the fuel cell boosts the fuel cell to an appropriate voltage through the control of DC/DC converter. While in the state of high load (for example, transient acceleration or uphill creep), the fuel cell may be served as an on-board charger. Not only the fuel cell may provide a maximum base load of electric power, but also the remaining requirement of electric energy is matched with the additional output of electric energy supplied by a high power secondary battery. So, the fuel cell of the invention is made to have the control function of compound power output and be able to effectively improve the shortcomings of the small electric vehicle of prior arts, such as: insufficient distance for sustaining cruise and inferior conversion of energy. In addition, compared with the power source of a full fuel cell, the power source used in both hybrid fuel cell and high power secondary battery not only has lower cost but also further has the advantage of making the system easy to match during choosing a fuel cell. When the invention is applied in various types of electric vehicles, it may make the system have an excellent ability of sustaining cruise.

Abstract translation: 本发明是一种具有混合燃料电池的电动汽车的动力输出控制系统，其是DC / DC转换器的最佳设计，并且将控制器局域网（CAN）作为通信用的连接仪器，使得电源趋向于 更灵活 当本发明设计成中等负载和低负载（例如，恒速巡航）的状态时，由燃料电池供应的主要电能通过DC / DC转换器的控制将燃料电池升压到适当的电压。 当处于高负载状态（例如，瞬时加速或上坡蠕变）时，燃料电池可以用作车载充电器。 不仅燃料电池可以提供电力的最大基本负载，而且剩余的电能需求与由大功率二次电池提供的电能的附加输出相匹配。 因此，本发明的燃料电池具有复合功率输出的控制功能，能够有效地改善现有技术的小型电动车辆的缺点，例如：持续巡航距离不足和能量转换不良。 另外，与全燃料电池的电源相比，混合燃料电池和大功率二次电池中使用的电源不仅具有较低的成本，而且还具有使系统在选择燃料时容易匹配的优点 细胞。 当本发明应用于各种类型的电动车辆时，可以使系统具有优异的维持巡航能力。