2 results about "Fuel cell bus" patented technology

This invention discloses a noise control method and system for fuel cell buses stopping at bus stops, relating to the field of fuel cell vehicle technology. The method includes: acquiring the distance between the vehicle's current position and the bus stop, and the current vehicle speed; when the distance is less than or equal to a set distance threshold and the vehicle speed is less than or equal to a set speed threshold, controlling the reduction of the fuel cell engine's output power, and acquiring the duty cycle of each fan in the fuel cell radiator; when the duty cycle of any fan is greater than a set proportional threshold, controlling the reduction of the fan duty cycle, disconnecting the connection between the fuel cell and the fuel cell radiator, and opening the connection between the fuel cell and the heat exchanger to reduce the temperature of the fuel cell coolant in the heat exchanger, thereby achieving short-term auxiliary cooling of the fuel cell, solving the problem of insufficient cooling of the fuel cell coolant, and balancing noise control and system thermal safety.