Fuel cell vehicle integrated thermal management system and control method thereof

Abstract

The invention discloses a fuel cell vehicle integrated thermal management system and a control method thereof. The system comprises a fuel cell thermal management loop, a power cell thermal managementloop, a motor thermal management loop and a passenger compartment thermal management loop. The fuel cell thermal management loop comprises a fuel cell, a radiator, a water pump, an expansion water tank, a temperature sensor and a three-way valve; the power cell thermal management loop comprises a power cell, a radiator, a water pump, an expansion water tank, a temperature sensor and a three-way valve; the invention further discloses a control method of the system. Firstly, the operation condition of the whole vehicle is judged through the environment temperature, then the opening and closingstates of the three-way valves of all the loops are comprehensively judged according to the temperature of all the loops, and therefore efficient heat utilization of whole vehicle integrated thermal management is achieved. The control mode is simple, the structure is compact, and the energy utilization rate and economy of a fuel cell vehicle are improved.

Description

technical field [0001] The invention belongs to the field of fuel cell vehicles, in particular to an integrated heat management system and a control method for a fuel cell vehicle. Background technique [0002] A fuel cell is a device that converts chemical energy into electricity, water and heat through the chemical reaction of hydrogen and oxygen. As a new type of clean energy, fuel cells have the advantages of high efficiency, quietness, environmental friendliness, simple structure, high energy density, and high safety. The emergence of fuel cell vehicles has brought new challenges to the research and development of fuel cell vehicle thermal management systems. A good fuel cell integrated thermal management system plays an important role in the performance and reliable operation of fuel cell vehicles. [0003] As an important part of energy-saving and new energy vehicles, fuel cell vehicles are a nonlinear, multivariable and time-varying complex system. A complete proto...

AI Technical Summary

Problems solved by technology

The above patents only considered the thermal management of the fuel cell, and did not take into account the thermal management of other components of the vehicle

Images