Dual-Battery EV Drive With Dynamic Switching for Range Extension

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Solution Overview

Problem

Current electric vehicles have limited travel distance on a single charge, requiring frequent recharging and resulting in significant battery charging waiting time, which restricts their usability and convenience.

Innovation Solution

The Dual Drive Electric Vehicle with Unlimited Range Drive (URD) system employs intelligent battery modules and a high voltage continuous variable power plant, dynamically switching between two high voltage batteries to recharge while in use, allowing continuous operation for up to 10-15 years or over 1 million miles, utilizing both wired and wireless charging methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single high voltage battery is used in electric vehicles, then the vehicle structure is simple, but the travel distance is limited to 200-300 miles requiring frequent recharging

Engineering Contradiction:
Improvebattery system structureVSAvoidtravel distance on single charge
Core Design Contradiction:
Device complexityVSDuration of action of moving object

Solution Approach 1:

The patent divides the battery system into two separate high voltage batteries instead of using one large battery. This segmentation allows the vehicle to alternate between batteries, with one powering the motor while the other charges, effectively doubling the operational duration before recharging is needed without significantly increasing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary charging action by using the motor-driven generator to charge one battery while the other is in use. This preliminary charging ensures that a charged battery is always available to take over when the active battery depletes, eliminating the need for external recharging during the vehicle's operational cycle.

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If fast inductive charging is used to reduce charging time, then charging speed increases, but customers must pay higher costs

Engineering Contradiction:
Improvebattery charging waiting timeVSAvoidcharging cost
Core Design Contradiction:
Loss of timeVSEase of manufacture

Solution Approach 1:

The system provides self-service charging by using the vehicle's own motor and generator to recharge one battery while the other is in use. This eliminates the need for external fast charging infrastructure and associated costs, reducing charging time to minimal periods when the vehicle is parked or stopped, without requiring payment for premium fast charging services.

Inventive Principle:
Principle #25Self-service

3Use of energy by moving object

If frequent recharging is required every 200-300 miles, then battery capacity is optimized for range, but usability and convenience are significantly restricted

Engineering Contradiction:
Improvebattery capacity efficiencyVSAvoidvehicle usability
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

By segmenting the energy storage into two batteries, the system maintains optimal battery capacity for efficient energy use while eliminating the need for frequent recharging. The dual-battery configuration allows continuous operation by alternating between charged and discharging states, significantly improving usability without sacrificing energy efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system ensures continuity of useful action by maintaining one battery in charged state ready to power the motor while the other charges. This continuous availability of charged energy eliminates interruptions in vehicle operation, providing seamless usability while maintaining optimal battery discharge rates for efficiency.

Inventive Principle:
Principle #20Continuity of useful action

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 solution eliminates the need for frequent recharging, providing an unlimited range capability, reducing environmental impact and costs, while enhancing convenience and reducing the strain on the power grid.

Implementation Method 1

a generator (106) driven by the drive shaft (10a) rotation energy to generate high voltage current

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a high voltage wireless charging port available through magnetic fields charge

Methodology Applied
Scientific EffectMagnetic field induction: Electromagnetic Induction

Data Source

PatentUS11923718B2Dual drive electric vehicle with unlimited range drive capabilities
Publication Date: 2024.03.05 PATEL MITUL M
  • US11923718B2 patent drawing
  • US11923718B2 patent drawing
  • US11923718B2 patent drawing

AI summary

Our system describes Unlimited Range Drive (URD) capabilities of an electrical automotive vehicle using machine learning technique, assisted by newly designed intelligent battery modules (IBM-R, IBM-D/R) and newly invented high voltage continuous variable power plant (CVPP), our intelligent battery and power plant modules work in harmony and continuously provide feedback to each other, causing a high voltage battery to recharge while other high voltage battery is in use to drive a vehicle, this charging/recharging process and dynamically switching high voltage battery in use is continued until physical life of batteries is exhausted which may be 10 to 15 years, dynamic coordination of the modules with dynamic switching of battery in use archives Unlimited Range Drive (URD) capabilities which may exceed more than 1 million miles drive on a single high voltage battery charge, our URD system provides clean environment and cost effective more than 1 million miles drive solution.