Wheel-Mounted Auxiliary Power Assembly for EV Range Backup

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Electric vehicles face limitations in range and charging time, and primary battery failures can leave them stranded, necessitating an auxiliary power source that does not occupy cabin or luggage space.

Innovation Solution

A wheel-mounted assembly comprising rechargeable batteries, a charging circuit, an electric generator, and a flywheel that rotates to generate electricity, providing emergency power and trickle charging capabilities without modifying the wheel rim, using a housing made from plastic and a shaft that rotates freely with the wheel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If an auxiliary power source is added to electric vehicles, then the range and emergency power capability are improved, but the vehicle weight and device complexity increase

Engineering Contradiction:
ImproverangeVSAvoidvehicle weight
Core Design Contradiction:
Duration of action of moving objectVSWeight of moving object

Solution Approach 1:

The auxiliary power source is segmented into modular components (batteries, generator, flywheel, housing) that can be independently mounted on wheels. This allows the power source to be distributed across multiple locations rather than concentrated in one heavy unit, reducing overall vehicle weight while maintaining extended range capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The power source components are relocated from the traditional horizontal arrangement (cabin/luggage space) to a vertical/dimensional arrangement on the wheels. By mounting batteries and generator on the wheel assembly, the invention utilizes the wheel structure as a carrier, effectively adding a new spatial dimension for power source placement without increasing cabin space requirements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If an auxiliary power source is added to electric vehicles, then emergency power capability is improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Improveemergency power capabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wheel-mounted assembly serves multiple functions simultaneously: it provides auxiliary power storage (batteries), power generation (generator), rotational energy storage (flywheel), and structural support. This multi-functionality consolidates what would otherwise be separate systems into a single integrated unit, reducing overall device complexity while enhancing emergency power capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the auxiliary power source components (batteries, generator, flywheel) with the wheel structure itself. By combining these previously separate elements into a single integrated wheel assembly, the design reduces the number of discrete components and connections required, thereby simplifying the overall system while improving reliability through component proximity and shared mounting structure.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If traditional auxiliary power sources are used, then power backup is provided, but cabin or luggage space is occupied

Engineering Contradiction:
Improvepower backupVSAvoidcabin space
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The power source components are relocated from the traditional horizontal arrangement (cabin/luggage space) to a vertical/dimensional arrangement on the wheels. By mounting batteries and generator on the wheel assembly, the invention utilizes the wheel structure as a carrier, effectively adding a new spatial dimension for power source placement without increasing cabin space requirements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The auxiliary power source components are extracted from the cabin/luggage area and relocated to the wheel assembly. This extraction removes the space-occupying elements from the passenger compartment while maintaining their functional integrity, thereby preserving cabin space while still providing power backup capability.

Inventive Principle:
Principle #2Taking out (Extraction)

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 assembly extends the range of electric vehicles, provides emergency power in case of primary battery failure, and improves overall efficiency by generating free energy from kinetic energy, allowing safe parking and reducing the need for towing, while being cost-effective and environmentally friendly.

Implementation Method 1

an electric generator mounted to the shaft and the housing, wherein the electric generator rotates with the shaft for generating electricity

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a plurality of first batteries mounted to the housing; a charging circuitry configured to charge the plurality of first batteries

Methodology Applied
Scientific EffectElectrical energy storage: Battery (electricity)

Data Source

PatentUS11984791B2Auxiliary power source for electric vehicles
Publication Date: 2024.05.14 WENNER FRANK WILLIAM
  • US11984791B2 patent drawing
  • US11984791B2 patent drawing
  • US11984791B2 patent drawing

AI summary

An assembly as an auxiliary source of power for an electric vehicle that can generate free energy. The assembly includes a housing that allows the assembly to be mounted to a wheel of the electric vehicle. The assembly includes a plurality of first batteries mounted to the housing; a charging circuitry configured to charge the plurality of first batteries; a shaft mounted to the housing, wherein the shaft is freely rotatable relative to the housing; an electric generator mounted to the shaft and the housing, wherein the electric generator rotates with the shaft for generating electricity; and a flywheel mounted to the shaft, the flywheel configured to rotate the shaft.