Device for Transmitting Torque Between a Wheel and an Electric Machine Integrated into the Wheel

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a specialized device for transmitting torque between a wheel and an electric machine (such as an electric motor or generator) that is integrated directly into the wheel. The device utilizes a divided transfer structure with interlocking elements to ensure efficient torque transmission while mechanically decoupling the electric machine from external deformations and forces that arise from vehicle maneuvers. This prevents unwanted forces from affecting sensitive parts of the electric machine, maintaining optimal operational conditions especially for the critical air gap inside the machine.

Use CasesContent extracted from patent full text and abstract with AI.

• Electric vehicles with wheel hub motors to improve longevity and reliability of in-wheel electric drives
• Electric bicycles or e-scooters where the motor is integrated into the wheel
• Advanced robotics and automated guided vehicles (AGVs) that require independent in-wheel electric actuation
• Automotive applications for direct-drive systems enabling compact electric wheel modules
• Retrofitting traditional vehicles for electrification by integrating this decoupled wheel-motor arrangement

BenefitsContent extracted from patent full text and abstract with AI.

• Highly efficient torque transmission with minimal play or backlash, improving performance and response
• Protects sensitive parts of the electric machine from mechanical deformations and forces arising from the road or maneuvers, thus increasing durability and reliability
• Allows for reduction in the size and weight of components, improving overall vehicle efficiency
• Simplifies maintenance and enables faster wheel changes due to the structure allowing for quick assembly/disassembly
• Improves operational safety and stability by ensuring that critical tolerances (like the air gap in electric machines) are maintained, reducing risk of machine failure

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a device for transmitting torque between a wheel (2) and an electric machine (3) integrated into the wheel (2).