Vehicle Front Structure Transverse Power Unit Layout
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Solution Overview
Problem
Reducing the weight of a vehicle body while maintaining load balance between front and rear wheels is challenging due to the heavy power unit, which necessitates increasing the wheelbase, thereby enlarging the vehicle body and diminishing the weight reduction effect.
Innovation Solution
A vehicle front portion structure that positions the power unit near the rear of the front bumper and integrates a cooling unit and air conditioning unit with modular components, allowing for compact piping and wiring, and includes a battery that can be supported by the dash panel to maintain load balance without increasing the vehicle's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the power unit is positioned at the rear of the front bumper to lengthen the wheelbase, then the load balance between front and rear wheels is improved, but the vehicle body size increases
Solution Approach 1:
The patent repositions the power unit from a longitudinal arrangement (behind the cooling unit) to a transverse arrangement (beside the cooling unit, extending in the vehicle width direction). This dimensional shift allows the wheelbase to be lengthened while keeping the overall vehicle length constrained, as the power unit now occupies lateral space rather than longitudinal space.
2Weight of moving object
If the vehicle body weight is reduced, then the fuel efficiency is improved, but the load bearing balance between front and rear wheels deteriorates due to the heavy power unit
Solution Approach 1:
By arranging the power unit in the vehicle width direction rather than the longitudinal direction, the patent enables lighter vehicle body construction while maintaining proper load distribution. The transverse placement of the power unit allows the front wheels to be positioned further forward, lengthening the wheelbase and improving load balance even with reduced body weight.
3Volume of moving object
If the cooling unit and air conditioning unit are integrated with modular components, then the piping and wiring become compact, but the device complexity increases
Solution Approach 1:
The patent integrates the cooling unit and air conditioning unit into a single modular assembly where the condenser, radiator, expansion valve, and related piping are combined in one compact structure. This merging of functions reduces the overall volume of piping and wiring while the modular design allows for standardized, pre-assembled components that simplify installation and maintenance despite the increased integration complexity.
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
This configuration enables a longer wheelbase without enlarging the vehicle body, improving load balance and contributing significantly to overall weight reduction while allowing for easier maintenance and enhanced cooling performance.
Implementation Method 1
a cooling unit provided at a rear in a vehicle front-rear direction with respect to the power unit... and comprising at least one of a heat exchanger that constitute a cooling system of the power unit
Implementation Method 2
a condenser of an air conditioning device
Data Source
AI summary
A vehicle front portion structure is provided which can lengthen a wheel base without increasing the size of a vehicle body. A vehicle front portion structure is provided with a bumper reinforcement of a front bumper, a power unit that drives a front wheel arranged to a vehicle rear of the bumper reinforcement, and a cooling unit which is arranged at a vehicle front of a dash panel, and is arranged at a vehicle rear of the power unit.