Fuel cell system
AssigneeNissan Motor Co., Ltd.
InventorsEmi Kawasumi, Yasukazu Iwasaki, Hiroyuki Ichikawa
Life of this patent
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Abstract
A fuel cell system is provided which performs simple control of the time until warm-up of the reformer (1) is completed. This fuel cell system comprises a reformer (1) which generates a reformate gas, and a fuel cell (2) which generates power from an oxidizing agent and the reformate gas supplied from the reformer (1). The fuel cell system is provided with a temperature sensor (7) which performs a detection at one position of the temperature immediately before starting or re-starting the reformer (1) and a controller (6) estimating the time to warm-up the reformer (1) based on the detected temperature of the reformer (1).
Claims11
A fuel cell system, having a reformer (1) which generates a hydrogen-rich reformate gas;
- a fuel cell (2) which generates power using an oxidizing agent and the reformate gas supplied from the reformer (1), the fuel cell (2) having a fuel cell stack (16) and a power control circuit (12) for controlling power generation and an output to a load circuit (13);
- and a heating device (15) for warming the reformer (1);
- the fuel cell system comprising:
- a temperature sensor (7) which detects a temperature of the reformer (1) at a single position;
- and
- a controller (6) functioning to:
- set a warm-up period of the reformer (1) based on the temperature of the reformer (1) detected immediately before warm-up by the temperature sensor (7);
- and
- control the heating device (15) so that the warm-up operation of the reformer (1) is performed within the warm-up period.
A fuel cell system, having a reformer (1) which generates a hydrogen-rich reformate gas;
- a fuel cell (2) which generates power using an oxidizing agent and the reformate gas supplied from the reformer (1), the fuel cell (2) having a fuel cell stack (16) and a power control circuit (12) for controlling power generation and an output to a load circuit (13);
- and a heating device (15) for warming the reformer (1);
- the fuel cell system comprising:
- a temperature sensor (7) which detects a temperature of the reformer (1) at a single position;
- and
- a controller (6) functioning to:
- set a warm-up period of the reformer (1) based on the temperature of the reformer (1) detected immediately before warm-up;
- set a waiting time based on a target power in the fuel cell (2);
- control the heating device (15) so that the warm-up operation of the reformer (1) is performed within the warm-up period;
- and
- command the power control circuit (12) to start output of current after the waiting time has elapsed after stopping the warm-up operation in the reformer (1).
Dependencies are inferred from the claim text.