Sensor-Guided EV Charging Cart Control on Slopes and Uneven Ground
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Solution Overview
Problem
Existing electric vehicle charging carts are cumbersome and difficult to maneuver due to their heavy weight, leading to safety concerns and inefficiencies, especially when users' intentions are not immediately recognized, causing potential accidents on uneven terrain.
Innovation Solution
A charging cart equipped with a sensor unit, detection unit, and control unit that utilize external force sensing information and traveling state information to control movement, allowing for user intention confirmation and reduced manual effort, featuring a handle with integrated sensors and a driving unit for precise movement control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a charging cart includes a charging module and electronic elements, then it can provide charging functionality to electric vehicles, but it becomes heavy (about 700 kg) and difficult to move
Solution Approach 1:
The patent replaces manual mechanical pushing with an automated driving system. The driving unit includes a motor that can automatically move the charging cart to the electric vehicle, eliminating the need for users to manually push the heavy cart weighing about 700 kg.
Solution Approach 2:
The charging cart is equipped with sensors that automatically detect the electric vehicle and initiate the charging process without manual intervention. The system can autonomously navigate to the vehicle and establish connection, making the heavy cart self-sufficient in its operation.
2Adaptability or versatility
If the charging cart is heavy, then it can accommodate charging modules and electronics, but it moves uncontrollably on slopes and causes safety problems
Solution Approach 1:
The patent replaces manual mechanical control with an automated driving unit that uses sensors to detect slope conditions and automatically adjusts movement. The driving motor can precisely control the cart's motion on inclined surfaces, preventing uncontrolled movement and ensuring safety.
Solution Approach 2:
The charging cart includes sensors that continuously monitor the cart's position, slope conditions, and movement state. This feedback information is used by the control system to automatically adjust the driving force and maintain stable, controlled movement on slopes, preventing safety accidents.
3Ease of operation
If manual force is applied to move the charging cart, then movement is possible, but user intention is not immediately recognized and accidents may occur
Solution Approach 1:
The patent replaces manual mechanical pushing with an automated driving system that uses sensors to detect user presence and intention. The system can automatically initiate movement when a user approaches or signals intent, eliminating the delay in recognizing user intentions that occurs with manual operation.
Solution Approach 2:
The charging cart autonomously detects user intentions through sensors and automatically responds by initiating movement or charging operations, eliminating the need for users to continuously monitor and control the heavy cart manually.
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 ensures safer and more efficient movement of the charging cart by accurately detecting user intentions and adjusting power distribution to the wheels, reducing the risk of accidents and improving user convenience, especially on slopes and uneven surfaces.
Implementation Method 1
the sensor unit may include a piezoelectric sensor module provided in the handle to detect a physical pressure
Implementation Method 2
the sensor unit may include strain gauge sensor modules
Implementation Method 3
a proximity sensor module provided in the handle or outside the handle to detect electromagnetic waves reflected after being emitted toward a user
Implementation Method 4
a camera module that acquires image information related to a user
Implementation Method 5
a driving unit configured to apply a driving force to the traveling unit
Data Source
AI summary
Disclosed is a charging cart for charging an electric vehicle according to various embodiments of the present invention for solving the described problem. The charging cart for charging an electric vehicle may comprise: a body; a handle extending from the body so as to come in contact with a user's body; a sensor unit connected to the handle so as to acquire sensing information corresponding to external force related to contact with the user's body; a travel unit for permitting movement of the body; a sensing unit for acquiring travel state information related to whether the body is movable; a driving unit for applying driving force to the travel unit; and a control unit for controlling the driving unit on the basis of the travel state information and the sensing information corresponding to the external force.