Electric vehicle with cleaning device

Solution Overview

Problem

Existing autonomous electric vehicles face challenges in maintaining cabin cleanliness due to insufficient power from dedicated motors for cleaning devices, which are limited in space and effectiveness in removing dust from distant areas within the vehicle cabin.

Innovation Solution

An electric vehicle with a cleaning device connected via a pipe, utilizing a first clutch to disconnect the electric motor from the axle and a second clutch to connect it with the cleaning device, allowing the electric motor to power the cleaning device for efficient cabin cleaning without increasing motor size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If dedicated motors for cleaning devices are made larger to increase power, then dust removal capability is improved, but vehicle cabin space is occupied

Engineering Contradiction:
Core Design Contradiction:
PowerVSVolume of moving object

Solution Approach 1:

The electric motor is designed to perform multiple functions: it serves as both the propulsion motor for driving the vehicle and as the power source for the cleaning device. Through a coupling mechanism, the motor can selectively drive either the axle for vehicle movement or the cleaning device for cabin cleaning, eliminating the need for separate dedicated motors and saving space.

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

2Ease of manufacture

If cleaning devices are secured in certain places with weak power motors, then device installation is simplified, but dust removal from distant areas is ineffective

Engineering Contradiction:
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

A coupling mechanism acts as an intermediary between the electric motor and the cleaning device. This coupling allows the motor to selectively connect to either the axle for vehicle propulsion or the cleaning device for operation. The coupling mechanism enables flexible power distribution, allowing the cleaning device to be powered by the main motor without requiring complex installation infrastructure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple cleaning devices with dedicated motors are installed throughout the cabin, then dust removal coverage is improved, but device complexity and space occupation increase

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Instead of installing multiple cleaning devices with separate motors throughout the cabin, the system uses a single electric motor that serves dual purposes: vehicle propulsion and cleaning device operation. The coupling mechanism enables this motor to selectively drive different components, providing a simpler, more integrated solution that reduces overall system complexity while maintaining effective dust removal capability.

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

Data Source

PatentUS10744980B2Electric vehicle with cleaning device
Publication Date: 2020.08.18
  • US10744980B2 patent drawing
  • US10744980B2 patent drawing
  • US10744980B2 patent drawing

AI summary

An electric vehicle with a cleaning device includes a electric motor, a cleaning device connected with a pipe installed in a vehicle cabin, a first clutch that connects and disconnects the electric motor with an axle of wheels of the vehicle, a second clutch that connects and disconnects the electric motor with the cleaning device, a control unit that controls one of the first clutch and the second clutch to selectively connect one of the cleaning device and the axle with the electric motor and activate the cleaning device.