Hydrogen EV Body Structure for Dense Component Packaging and Cooling
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Solution Overview
Problem
Hydrogen electric vehicle-based passenger vehicles face challenges in mounting various parts such as high-voltage batteries, fuel cell stacks, and hydrogen tanks in limited vehicle body space, while also ensuring mounting rigidity and structural integrity.
Innovation Solution
A vehicle body structure comprising a front body with a first cooling module, a middle body with a center floor panel and side members, and a rear body with second and third cooling modules, hydrogen tanks, and a part mounting unit to secure and cool the various components, thereby optimizing space utilization and structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If various parts are mounted in a limited vehicle body space, then space utilization is improved, but mounting rigidity and structural integrity deteriorate
Solution Approach 1:
The vehicle body is divided into front body, middle body, and rear body sections, each with dedicated mounting structures. The front body includes front side members for mounting cooling modules and fuel cell stacks, the middle body has a center floor panel with tunnel portion for battery mounting, and the rear body has rear side members and cross members for additional component mounting. This segmentation allows efficient space utilization while maintaining structural integrity through distributed mounting points.
Solution Approach 2:
The patent utilizes the vertical dimension by disposing cooling modules above and below the tunnel portion, and arranging components in multiple levels within the vehicle body. The center floor panel structure with tunnel portion creates vertical stacking opportunities, allowing high-voltage batteries to be mounted in the tunnel while cooling modules are positioned above and below, maximizing space utilization without compromising mounting rigidity.
2Temperature
If cooling modules are added to cool various parts, then cooling performance is improved, but device complexity increases
Solution Approach 1:
Multiple cooling modules (first, second, and third cooling modules) are integrated into the vehicle body structure at different locations. The first cooling module is mounted on the front body, the second cooling module on the rear body, and the third cooling module in the middle body. This distributed arrangement consolidates cooling functions into the existing body structure rather than adding separate cooling systems, improving cooling performance while managing complexity through integration.
Solution Approach 2:
The cooling modules are designed to serve multiple components within the hydrogen electric vehicle system. The front cooling module cools the fuel cell stack and hydrogen tanks, the middle cooling module addresses the high-voltage battery, and the rear cooling module handles additional thermal management needs. This multi-functional approach improves overall cooling performance while reducing the number of separate cooling systems required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed vehicle body structure effectively arranges and secures various parts within the limited space of hydrogen electric vehicle-based passenger vehicles without increasing the vehicle body height, while enhancing cooling performance and structural rigidity, thus improving safety and operational efficiency.
Implementation Method 1
at least one first cooling module disposed on a front portion of the front side member... at least one second cooling module disposed on each of two sides of a front portion of the rear body... at least one third cooling module disposed below the rear side member
Implementation Method 2
various parts such as a high-voltage battery, a fuel cell stack, a driving motor, a hydrogen tank and a cooling module may be mounted on a vehicle body thereof
Data Source
AI summary
An embodiment is a vehicle body structure including a front body comprising a first cooling module, a middle body having a center floor panel, the center floor panel being connected to the front body, and a rear body comprising a second cooling module and a third cooling module, the second cooling module being on each of two sides of a rear portion of the rear body in a vehicle width direction, the rear body being connected to the middle body, the third cooling module being in the rear portion of the rear body.