Hybrid Power Unit Layout With Transverse Motor for Compact Packaging
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Solution Overview
Problem
The challenge lies in configuring a compact hybrid powertrain unit for saddle type vehicles while maintaining the conventional length and width, as well as ensuring secure and easy assembly of components like internal combustion engines, electric motors, and energy storage units without increasing the vehicle's bulkiness or complexity.
Innovation Solution
The proposed solution involves a specific layout configuration where the internal combustion engine is mounted horizontally on down frames, with the energy storage unit placed centrally and the electric motor assembly disposed transversely above the engine, utilizing belt drives and one-way clutches to enable efficient power transfer and compact packaging, ensuring balanced mass distribution and improved handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If electric vehicles are equipped with large capacity energy storage units to propel vehicles through large distances, then the vehicle range is improved, but the vehicle structure becomes more complex and bulkier
Solution Approach 1:
The patent divides the powertrain into modular components: internal combustion engine, electric motor assembly, energy storage unit, and transmission system. Each module can be independently configured and assembled, reducing overall system complexity while maintaining extended range capability through the hybrid architecture.
Solution Approach 2:
The electric motor assembly is positioned within the engine assembly structure, with the electric motor housed inside or adjacent to the engine components. This nested arrangement optimizes space utilization and reduces the overall vehicle structure complexity while accommodating both power sources.
2Adaptability or versatility
If hybrid powertrain components are added to saddle type vehicles, then the vehicle functionality is improved, but the vehicle dimensions and bulkiness increase
Solution Approach 1:
The electric motor assembly is positioned transversely above the engine assembly, utilizing the vertical dimension rather than only horizontal space. This three-dimensional arrangement accommodates hybrid components without increasing the vehicle's length or width, maintaining conventional saddle type vehicle dimensions.
Solution Approach 2:
The electric motor assembly and engine assembly are integrated into a unified hybrid power unit structure. The electric motor is positioned within the engine assembly boundaries, merging two power sources into a compact combined unit that fits within conventional vehicle space constraints.
3Volume of moving object
If multiple powertrain components are integrated into a compact unit, then the space utilization is improved, but the assembly complexity increases
Solution Approach 1:
The hybrid power unit is divided into distinct assemblies: engine assembly, electric motor assembly, and transmission system. Each assembly can be manufactured and tested independently before final integration, reducing assembly complexity while achieving compact overall packaging through standardized interfaces.
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 allows for a stable, compact, and durable layout that maintains the vehicle's conventional dimensions, enhances system response time, and provides better force balance and structural rigidity, addressing the challenge of space constraints and ease of assembly.
Implementation Method 1
utilizing belt drives and one-way clutches to enable efficient power transfer
Implementation Method 2
utilizing belt drives and one-way clutches to enable efficient power transfer
Data Source
AI summary
A vehicle includes: an engine assembly including a cylinder head, an engine output shaft, and a crankshaft; and an electric motor assembly transversely disposed above a crankcase of the engine assembly. The electric motor assembly includes an electric motor and an electromagnetic clutch mounted coaxially on the electric motor.