Vehicle fuel cell thermal management system and control method thereof

Abstract

The invention discloses a vehicle fuel cell thermal management system. The system comprises a fuel cell stack; a first temperature sensor and a second pressure sensor are installed on a water outflow pipeline of the fuel cell stack; an electric control three-way valve is installed on an end opening of the water outflow pipeline of the fuel cell stack; a first water pipe is installed at one connector of the electric control three-way valve; a water filter is installed at one end of the first water pipe; a water pump is installed at one end of the water filter through a drainage pipe; and a water inflow pipe connected with the fuel cell stack is installed on the water pump. The vehicle fuel cell heat management system and the control method thereof can meet high-temperature heat dissipation and low-temperature heating starting requirements of the fuel cell stack; a strategy can be controlled, the water pump and the electric control three-way valve are adjusted, so that the flow is effectively and reasonably distributed;a heat dissipater and a heater can be adjusted, so that system temperature is always in a reasonable temperature range.

Description

technical field [0001] The invention relates to the field, in particular to a vehicle fuel cell thermal management system and a control method thereof. Background technique [0002] With the rise of the new energy industry, low-carbonization, informatization, and intelligence have become the development trend. Hydrogen fuel cell vehicles are more and more widely used. As the core of fuel cell vehicles, fuel cell engine systems are particularly critical to the protection of fuel cell performance. , the fuel cell needs to have the best performance within a certain temperature range. Too low temperature will affect the performance output, and too high temperature will cause the internal materials of the fuel cell to fail. Therefore, a reasonable design of the thermal management system is essential for the reliable and efficient operation of the fuel cell. Particularly important. [0003] At present, fuel cell thermal management systems generally have the functions of low-tempe...

AI Technical Summary

Problems solved by technology

[0003] At present, fuel cell thermal management systems generally have the functions of low-temperature heating, high-temperature heat dissipation, and deionization, while low-temperature heating is only used under low-temperature conditions. Ion filters remove ions in the circuit and are generally used as a branch circuit. The structure and flow resistance characteristics of the device, unreasonable design will seriously affect the flow of the main circulation waterway, and also affect the heating and deionization effects. Therefore, a reasonable design of the thermal management system can ensure the realization of various functions and maximize the functions. Component performance

Images