Vehicle Cable Routing with Curved Inflection and Interstitial Passage
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Solution Overview
Problem
In electric or hybrid vehicles, the long cable for power transmission between the motor and battery, often routed across the driving unit section, is prone to damage during collisions due to interference with peripheral components and restricted arrangement space.
Innovation Solution
A cable arrangement structure featuring a frame member and a vehicle constituting component with an extending and protruding portion, where the cable includes curved portions and an inflection point, allowing it to deform regularly and avoid interference, with an intermediate portion passing between the frame member and the constituting component to prevent sandwiching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable is arranged to extend from the cabin section to the driving unit disposing section, then power transmission between motor and battery is achieved, but the cable length becomes long and the cable is prone to damage during collisions
Solution Approach 1:
The cable is configured with a curved shape including a first curved portion, a second curved portion, and an inflection point between them. This curved configuration allows the cable to deform in a regular pattern during vehicle collisions, preventing unexpected deformations and interference with peripheral components, thereby improving cable damage resistance while maintaining power transmission capability.
Solution Approach 2:
The cable is pre-positioned to pass between the frame member and the extending portion of the vehicle constituting component in the driving unit disposing section. This preliminary positioning ensures that during collisions, the cable follows a predetermined path and avoids being sandwiched between components, thereby preventing damage before the collision actually occurs.
2Ease of operation
If the cable is routed across the driving unit disposing section, then power transmission is enabled, but the arrangement space is restricted and the cable may interfere with peripheral components
Solution Approach 1:
The cable arrangement utilizes the spatial dimension between the frame member and the extending portion of the vehicle constituting component. By positioning the cable to pass through this interstitial space and configuring it with curved portions and an inflection point, the design efficiently uses available three-dimensional space, reducing the cable's footprint in the two-dimensional arrangement plane and preventing interference with peripheral components.
3Reliability
If the cable passes between the frame member and the extending portion, then the cable is protected from sandwiching, but the arrangement becomes more complex
Solution Approach 1:
The frame member and vehicle constituting component serve multiple functions: they provide structural support for the vehicle and simultaneously create a protective passage for the cable. The extending portion with the protruding portion not only performs its primary function but also defines the protective space through which the cable passes, eliminating the need for additional protective structures and reducing overall system complexity.
Data Source
AI summary
A cable arrangement structure for a vehicle according to the present invention, the vehicle including a cabin section and a driving unit disposing section where a motor is arranged, comprises a cable which is arranged to extend from said cabin section to said driving unit disposing section to transmit power between the motor and a battery. The vehicle comprises a frame member which extends in a vehicle width direction and a vehicle constituting component which includes, in the driving unit disposing section, an extending portion arranged to face the frame member and extending in the vehicle width direction, and a protruding portion protruding from the extending portion toward the frame member. The cable extends in a back-and-forth direction of the vehicle and includes a first curved portion and a second curved portion with an inflection point therebetween. The cable includes an intermediate portion between the first curved portion and the second curved portion. The intermediate portion includes the inflection point and passes between the frame member and the extending portion beside the protruding portion.