Hybrid Powertrain Layout With Nested Generator and Flywheel
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Solution Overview
Problem
The addition of a motor as a power source in vehicles increases the volume of the power system, making it difficult to mount on vehicle models with limited available space.
Innovation Solution
A power system design that includes a driving motor, transmission mechanism, output mechanism, generator, and engine, where the orthographic projections of the output and transmission shafts are separated from the flywheel projection, and the generator's input shaft is within the flywheel projection, reducing the number of transmission components and creating space for the transmission and output mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a motor is added as a power source, then the power output capability is improved, but the volume of the power system increases
Solution Approach 1:
The generator is positioned within the projection area of the flywheel, and the transmission shaft is arranged within the projection area of the first output shaft, creating a nested spatial configuration where components occupy overlapping or contained spatial zones, thereby reducing the overall volume of the power system while accommodating multiple power sources
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by defining specific projection plane relationships between components. The first output shaft, transmission shaft, and generator are positioned according to their projections on different planes (first projection plane perpendicular to engine length direction, second projection plane perpendicular to engine width direction), optimizing space utilization in multiple dimensions
2Power
If transmission components are increased to accommodate dual power sources, then the power transmission capability is improved, but the device complexity increases
Solution Approach 1:
The transmission shaft serves dual functions by being drivingly connected to both the first output shaft (receiving power from driving motor) and the output mechanism (transmitting power to wheels). This multi-functional component reduces the need for separate transmission paths for each power source, thereby reducing overall device complexity while maintaining power transmission capability
Data Source
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AI summary
The present application relates to the technical field of vehicle layout, and in particular to a power system and a vehicle. The power system comprises a driving electric motor, a transmission mechanism, an output mechanism, an electric generator, an engine and a flywheel. The driving electric motor has a first output shaft. The transmission mechanism comprises a transmission shaft, which is in transmission connection with the first output shaft and the output mechanism. The engine is in transmission connection with the flywheel. The orthographic projection of the first output shaft on a first projection plane and the orthographic projection of the transmission shaft on the first projection plane are both spaced apart from the orthographic projection of the flywheel on the first projection plane, and the first projection plane is a plane perpendicular to the lengthwise direction of the engine. The electric generator has an input shaft, the input shaft is in transmission connection with the flywheel, and the orthographic projection of the input shaft on the first projection plane is located within the orthographic projection of the flywheel on the first projection plane. Therefore, the compactness of the power system can be improved, and the width of the power system is reduced, thereby reducing the volume of the power system.