Multiple Electric Motor Control System for Watercraft Propulsion
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Solution Overview
Problem
Conventional watercraft propulsion systems using gasoline or diesel engines are unsafe for children and generate significant pollution, while electric motors often lack sufficient thrust and control mechanisms for modern vessels.
Innovation Solution
A control system for multiple electric motors mounted on a watercraft, featuring a steering mechanism, lifting mechanism, and trim mechanism to rotate, raise/lower, and angle the motors for improved thrust and control, including a main shaft with attached electric motors, a hydraulic lifter, and a threaded bolt for adjusting the trim mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If gasoline or diesel engines are used for watercraft propulsion, then sufficient power and thrust are provided, but safety risks increase and pollution is generated
Solution Approach 1:
The patent replaces internal combustion engines (gasoline/diesel) with electric motors for watercraft propulsion. This substitution eliminates exhaust emissions and oil leaks while providing sufficient thrust through multiple electric motors working in parallel, thereby resolving the contradiction between power delivery and pollution/safety concerns.
Solution Approach 2:
The patent combines multiple electric motors into a single propulsion system mounted on a common shaft. This merging approach consolidates the thrust from multiple motors to achieve the total power needed, replacing traditional single-engine configurations and eliminating the harmful effects of combustion engines while maintaining adequate propulsion capability.
2Object-affected harmful factors
If electric motors are used for watercraft propulsion, then safety and pollution concerns are reduced, but thrust and control capability are insufficient
Solution Approach 1:
The patent merges multiple electric motors onto a single shaft system, combining their individual thrust outputs to achieve the total propulsion power required for modern watercraft. This approach maintains the safety and environmental benefits of electric motors while overcoming the thrust limitation through parallel motor configuration.
Solution Approach 2:
The patent introduces multiple degrees of freedom for motor orientation control, allowing the motor assembly to tilt and rotate in different dimensions. This enables the electric motor system to achieve directional control and thrust optimization comparable to traditional engines, resolving the control capability deficiency.
3Device complexity
If conventional single motor systems are used, then device complexity is low, but control precision and maneuverability are insufficient
Solution Approach 1:
The patent implements dynamic control mechanisms that allow the motor assembly to tilt and rotate during operation. The motors can be independently controlled to adjust their orientation and thrust direction, providing precise maneuverability and control precision while maintaining a relatively simple overall structure through the shared shaft mounting.
Data Source
AI summary
A multiple motor control system is provided for manipulating a propulsion system consisting of electric motors mounted on a water traversing vessel or watercraft. The control system incorporates a main shaft on which the electric motors are mounted and includes a steering system for turning the motors relative to the watercraft, a lifting system for raising and lowering the electric motors relative to the surface of the water and a trim mechanism for angling the direction of thrust of the electric motors so as to trim or level out the path of the watercraft as it travels through the water.