Hybrid Powertrain Layout With Rotating Motor Stator
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Solution Overview
Problem
Conventional hybrid power systems for vehicles are overly complex, with numerous components and failure points, leading to inefficiencies and poor performance under various operating conditions.
Innovation Solution
A simplified hybrid power system design featuring an engine and motor with a motor rotor, stator, and controller, where the motor stator is connected to the driving shaft through a transmission mechanism, allowing for relative rotation and efficient torque transmission, reducing the number of components and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional hybrid power system designs (series, parallel, series-parallel) are used, then the system can provide comprehensive power delivery, but the structure becomes complex with too many parts and components
Solution Approach 1:
The patent combines the engine and motor into a unified power system where the engine output shaft is directly connected to the motor rotor center shaft. This merging eliminates the need for separate transmission systems and multiple control components, achieving comprehensive power delivery while significantly reducing structural complexity
Solution Approach 2:
The motor serves multiple functions: it can operate as a motor to drive the vehicle, as a generator to recover energy during braking, and its rotor can be directly driven by the engine. This multi-functionality reduces the number of dedicated components needed in conventional hybrid systems
2Adaptability or versatility
If conventional hybrid power system designs are used, then various operating conditions can be met, but the number of failure points increases
Solution Approach 1:
By merging the engine and motor into a single integrated unit with direct shaft connection, the patent reduces the number of independent components that could fail. The unified structure maintains adaptability to various operating conditions while minimizing failure points through component reduction
3Device complexity
If the motor stator is fixed to the chassis, then the structure is simplified, but the system cannot meet various operating conditions such as starting, idling, forward travelling and reversing
Solution Approach 1:
The patent makes the motor stator dynamic by connecting it to the driving shaft through a transmission mechanism, allowing the stator to rotate relative to the chassis. This dynamic configuration enables the system to adapt to various operating conditions including starting, idling, forward traveling, and reversing, while maintaining structural simplicity
Solution Approach 2:
The transmission mechanism is segmented into detachable connections (flange plate with connecting holes) that allow the stator to be selectively connected to the driving shaft. This segmentation provides operational flexibility while keeping the overall structure simple and manageable
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 design enhances the hybrid power system's ability to handle starting, idling, forward travel, and reversing, while reducing parts and failure points, improving efficiency and reliability by optimizing torque and speed management.
Implementation Method 1
the motor controller is connected to the motor stator for providing a driving current for the motor stator
Implementation Method 2
two ends of the center shaft of the motor rotor are respectively connected to a motor bearing for supporting the motor rotor
Implementation Method 3
the motor stator is connected to a driving shaft of the motor vehicle through a transmission mechanism
Data Source
AI summary
A hybrid power system includes an engine and a motor. A motor stator of the motor is connected with a drive shaft of a motor vehicle through a transmission mechanism, so that the motor stator can also rotate relative to the chassis and other structures of the motor vehicle, thus, the hybrid power system composed of the engine and the motor can meet the application of various working conditions such as starting, idling, forwarding and reversing of the motor vehicle, and the number of parts of the hybrid system is greatly reduced, thereby simplifying the overall structure of the hybrid power system.