CN-121973954-A - Vehicle power system suitable for lunar region detection and verification method

CN121973954ACN 121973954 ACN121973954 ACN 121973954ACN-121973954-A

Abstract

The invention provides a vehicle power system and a verification method suitable for lunar region detection, and relates to the technical field of deep space detection, wherein the system comprises a configurable energy module, a driving motor transmission mechanism, a power conversion management system, a thermal control subsystem and an autonomous driving controller; the energy source module comprises a space fuel cell module, a wide temperature lithium ion battery module, a solar panel module and a radioactive isotope battery module, and one or more of the energy source module, the wide temperature lithium ion battery module, the solar panel module and the radioactive isotope battery module can be selected according to task requirements for combination. The invention can realize full-field Jing Gongneng coverage of moon day, moon night and permanent shadow areas, support uninterrupted propulsion of detection and transportation tasks, greatly improve task execution efficiency and detection coverage, ensure accurate adaptation of driving power and running requirements of complex terrains of moon areas, effectively reduce driving power calculation deviation and remarkably enhance the terrain passing capability and running stability of vehicles.

Inventors

JIA BORU
SUN XIAOHAN
WEI YIDI
LI JIAN
AN NA

Assignees

北京理工大学

Dates

Publication Date: 20260505
Application Date: 20260205

Claims (10)

1. The vehicle power system suitable for lunar region detection is characterized by comprising a configurable energy module, a driving motor transmission mechanism, a power conversion management subsystem, a thermal control subsystem and an autonomous driving controller; the energy module comprises a space fuel cell module, a wide-temperature lithium ion battery module, a solar panel module and a radioisotope battery module, and one or more of the energy modules can be selected for combination according to task requirements.
2. The vehicle power system suitable for lunar polar exploration according to claim 1, characterized in that said energy module is in particular a combination of said spatial fuel cell module and said wide temperature lithium ion battery module when applied to a remote uninterrupted exploration vehicle having a total mass less than or equal to a first preset mass and a travel distance less than or equal to a preset distance; When the vehicle power system is applied to a remote off-road transport vehicle with dead weight in a first preset dead weight range and load in a first preset load range, the energy module is specifically a combination of the radioisotope battery module and the wide-temperature lithium ion battery module; When the vehicle power system is applied to a large-load traction conveyor with the dead weight in a second preset dead weight range and the load in a second preset load range, the energy module is specifically a combination of the solar panel module and the wide-temperature lithium ion battery module.
3. The vehicle power system suitable for lunar polar region detection according to claim 1, wherein the rated driving power of the driving motor transmission mechanism is determined in a specific manner: and matching through a power balance equation of the lunar soft road surface to obtain the rated driving power.
4. The vehicle powertrain system of claim 3, wherein the power balance equations include in particular a first power balance equation and a second power balance equation; The building mode of the first power balance equation is specifically as follows: establishing the first power balance equation according to the environmental characteristics of the lunar pavement and the cruising speed requirement of the target vehicle; the second power balance equation is specifically established in the following manner: and establishing the second power balance equation according to the lunar pavement environment characteristic and the climbing gradient requirement of the target vehicle.
5. The vehicle power system for lunar polar exploration according to claim 1, wherein the thermal control subsystem comprises in particular a multilayer insulating material for the thermal insulation of components, an active electric heater for the heating at night of the moon, and a radiant radiator and/or a thermal control coating for the heat dissipation of the moon day.
6. A control method of a power system, characterized by being applied to the vehicle power system adapted for lunar polar region detection as claimed in any one of claims 1 to 5, comprising: and dynamically adjusting energy flow through the power conversion management subsystem and controlling the operation of the thermal control subsystem to maintain the operation of the vehicle power system.
7. A method of validating a powertrain, as applied to a vehicle powertrain adapted for lunar polar region detection as claimed in any one of claims 1 to 5, the method comprising: s1, acquiring a vehicle design index input by a user; s2, generating an initial combination scheme of the energy module through a built-in algorithm according to the vehicle design index; s3, generating a design scheme to be verified according to the interactive adjustment instruction of the user to the initial combination scheme; s4, inputting the design scheme to be verified into a preset parameterized Simulink simulation model, and outputting dynamic performance simulation data of the design scheme to be verified; And S5, evaluating whether the design scheme to be verified meets the vehicle design index according to the dynamic performance simulation data, outputting a vehicle design simulation report if yes, and returning to the step S3 if not.
8. The method of claim 7, wherein the vehicle design criteria include total mass, load, target cruising speed, maximum grade, and range.
9. A power system verification platform for implementing the power system verification method of any one of claims 7 to 8, the verification platform comprising: The parameterized Simulink simulation model library is used for simulating the dynamic behavior of the vehicle in a lunar environment and the working characteristics of each power source module; the graphic user interface module is used for providing a man-machine interaction interface for scheme configuration, parameter input and adjustment, simulation control and result visualization; And the data interaction and processing module is used for transmitting parameters and simulation data between the graphical user interface module and the parameterized Simulink simulation model library, and analyzing and reporting and generating simulation results.
10. The verification platform of claim 9, wherein the graphical user interface module provides at least three preset typical lunar rover mission instance configurations including a remote uninterrupted probe car instance having a total mass less than or equal to a first preset mass, a remote off-road transport car instance having a total mass of a second preset mass, and a heavy load carrying traction transport car instance having a total mass of a third preset mass.

Description

Vehicle power system suitable for lunar region detection and verification method Technical Field The invention relates to the technical field of deep space exploration, in particular to a vehicle power system suitable for lunar region exploration and a verification method. Background Lunar regions (especially Antarctic regions) become core hot spot regions for global deep space exploration due to the fact that the lunar regions enrich key resources such as water and ice and have important values of scientific exploration and future base construction. The area is extremely complex in terrain and extends over deep merle pits and high-gradient terrain, an extreme temperature difference of over 300 ℃ exists between about 127 ℃ in the daytime and about-173 ℃ in the evening, a permanent shadow area which is as long as a plurality of months exists in a part of the area, no illumination supply is achieved, and severe challenges are presented to continuous running, environmental adaptation and complex terrain passing capability of a detection vehicle. In the current deep space exploration field, the power supply scheme of lunar vehicles and underground exploration vehicles is mainly divided into two core technical routes, wherein one type is represented by China ' Yu Rabbit No. and ' Yu Rabbit No. two ' lunar vehicles, a solar panel is adopted as a core energy source, and energy storage and supply are realized by matching with a storage battery; the other type is represented by Mars vehicle with ' curiosity ' and ' perseverance ' in the United states, a radioisotope thermal motor (RTG) is adopted as a power source, and the heating is realized by means of radioisotope decay energy supply, so that all-weather operation is realized, but the system has high quality, limited power and high cost, and the application of the system is strictly limited due to the nuclear safety problem. For lunar vehicles that require long voyages, medium power, and perform a wide range of maneuver transportation tasks under complex terrain, existing energy schemes are difficult to balance in terms of power, energy density, environmental suitability, and system quality. In addition, lunar soil on the lunar surface is soft, the gravity is only 1/6 of that of the earth, and the vehicle is easy to slip and sink. The traditional vehicle dynamics and power matching model based on the earth hard road surface is not applicable any more, and a brand new design method applicable to low-gravity and soft road surfaces needs to be established. Therefore, a solution for a vehicle power system that can adapt to extreme environments of lunar regions, has long endurance and high trafficability, and can realize uninterrupted autonomous driving is needed, and meanwhile, a set of design and simulation tools that can rapidly and accurately verify the advantages and disadvantages of different design schemes is needed to cope with diversified lunar exploration task demands. Disclosure of Invention In view of the shortcomings of the prior art, the embodiment of the invention aims to provide a vehicle power system and a verification method suitable for lunar region detection, which can solve the technical problems that the conventional solar cell panel and storage battery combination scheme in the prior art is strictly limited by illumination conditions, continuous energy supply cannot be realized in a lunar night or a permanent shadow region, so that the vehicle is difficult to realize uninterrupted operation all day, and meanwhile, a traditional power matching model is not suitable for special environments of low lunar gravity and soft lunar soil, so that driving power calculation deviation is caused, and the trafficability and operation stability of the vehicle are affected. In a first aspect of the embodiment of the invention, a vehicle power system suitable for lunar region detection is provided, which comprises a configurable energy module, a driving motor transmission mechanism, a power conversion management subsystem, a thermal control subsystem and an autonomous driving controller; the energy source module comprises a space fuel cell module, a wide temperature lithium ion battery module, a solar panel module and a radioactive isotope battery module, and one or more of the energy source module, the wide temperature lithium ion battery module, the solar panel module and the radioactive isotope battery module can be selected for combination according to task requirements. In a second aspect of the embodiment of the present invention, a control method of a power system is provided, which is applied to the vehicle power system suitable for lunar polar region detection in the first aspect, and includes dynamically adjusting energy flow through a power conversion management subsystem, and controlling a thermal control subsystem to operate so as to maintain operation of the vehicle power system. In a third aspect of the embodiments of the present invention, a meth