Drive Device Planetary Gear Three-Input Motor Control
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Solution Overview
Problem
Conventional electric drive systems are inefficient, consume excessive energy, and have complex structures that make them unsuitable for compact applications, requiring multiple motor variants and complex gear mechanisms, which complicates switching and increases energy consumption.
Innovation Solution
A drive device comprising a planetary gear with three input/output levels, where the first and second drive motors power the planetary gear and ring gear respectively, allowing for optimal force transmission and compact design, enabling efficient speed control and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional electric drive systems use multiple motor variants and complex gear mechanisms to achieve different speed ranges, then the adaptability and versatility of the drive system is improved, but the device complexity and space requirements increase significantly
Solution Approach 1:
The patent applies universality by designing a single electric motor that can operate in multiple speed ranges (first, second, and third speed ranges) through a unified control concept. The motor controller enables the motor to function as different motor variants (first motor, second motor, third motor) by adjusting control parameters, eliminating the need for multiple physical motor variants and complex switching mechanisms.
Solution Approach 2:
The patent merges multiple motor variants and gear mechanisms into a single integrated system. Instead of using separate motors and complex summation gears, the invention combines the functions of multiple motors into one motor with a unified control concept that can simulate different motor characteristics and speed ranges through parameter adjustment.
2Power
If conventional electric drive systems use complex gear and clutch mechanisms to combine multiple motor outputs, then the power transmission capability is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent extracts and eliminates complex gear and clutch mechanisms from the drive system. By using a single electric motor with a unified control concept, the invention removes the need for summation gears, clutch mechanisms, and other complex power transmission components that are typically required when combining multiple motor outputs.
3Force
If conventional electric motors operate at very low speeds during startup and acceleration, then the starting torque requirement is improved, but the energy consumption increases significantly
Solution Approach 1:
The patent applies dynamics by implementing a unified control concept that dynamically adjusts motor parameters based on the operating speed range. The controller adapts control characteristics in real-time to optimize the balance between starting torque and energy consumption during startup and low-speed operation, preventing excessive energy consumption while ensuring adequate torque delivery.
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
The solution allows for universal motor variant simulation with reduced energy consumption and increased efficiency, enabling compact and simple design suitable for various applications without overheating or high starting torques, facilitating fine rotations and efficient power utilization.
Implementation Method 1
the power of the first drive motor and/or the second drive motor being transferable to an input/output shaft via the power transmission arrangement
Data Source
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AI summary
The present invention relates to a drive device (10), comprising at least one first drive motor (S1, R1), a second drive motor (S2, R2) and a force transmission arrangement (30), wherein the powers of the first drive motor (S1, R1) and/or of the second drive motor (S2, R2) can be transmitted to an input/output shaft (W) via the force transmission arrangement (30), wherein the force transmission arrangement (30) is formed from a planet gear with three input/output planes, wherein a first input/output plane of the planet gear can be driven by means of the first drive motor (S1, R1), and a second input/output plane of the planet gear can be driven by means of the second drive motor (S2, R2). In particular, the drive device (10) can be constructed in such a way that the force transmission arrangement (30) can be positioned between the first drive motor (S1, R1) and the second drive motor (S2, R2).