Hybrid power system and method based on vehicle-mounted navigation

Abstract

The invention relates to a hybrid power system based on a vehicle-mounted navigation. The hybrid power system based on the vehicle-mounted navigation comprises a fuel cell sub-system (1), a power cell sub-system (2), a whole vehicle controller (3), an energy management controller (4) and a vehicle-mounted navigation (5), wherein the fuel cell sub-system (1) and the power cell sub-system (2) are connected with a whole vehicle load (6) correspondingly, the energy management controller (4) is connected with the fuel cell sub-system (1), the power cell sub-system (2), the whole vehicle controller (3) and the vehicle-mounted navigation (5) correspondingly. Compared with the prior art, according to the hybrid power system and method based on the vehicle-mounted navigation, follow-up energy consumption can be estimated according to routing and vehicle speed information sent by the vehicle-mounted navigation, energy management can be conducted accurately on fuel cell hybrid cars, therefore the starting and stopping times of the fuel cell cars is decreased, and serve life of fuel cells is prolonged.

Description

technical field [0001] The invention relates to a vehicle hybrid power system, in particular to a vehicle navigation-based hybrid power system and method. Background technique [0002] In recent years, electric vehicles have made great progress, but the shortcomings of electric vehicles such as short cruising range, long charging time, and difficult charging prevent electric vehicles from becoming the ultimate solution in the field of transportation. Fuel cells use hydrogen and oxygen as reactants to generate electricity and water. High conversion efficiency and completely pollution-free, zero emissions. However, due to the slow dynamic response speed of the fuel cell, it is difficult to meet the rapid changes in the vehicle's working conditions. In actual use, it is generally necessary to cooperate with a lithium battery with a certain capacity for "shaving peaks and filling valleys". At this stage, fuel cell-lithium battery hybrid vehicles generally formulate energy mana...

AI Technical Summary

Problems solved by technology

Due to the complex operating conditions of the car, if the energy control is carried out blindly according to the state of the lithium battery, it will cause problems such as frequent start and stop of the fuel cell and unstable operating conditions of the fuel cell, which will eventually affect the service life of the fuel cell

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