Lithium Battery Charge Control With Pre-Charging Setup Verification
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Solution Overview
Problem
Conventional lithium-battery powered vehicles lack confidence in proper charging setup, leading to inefficiencies and excessive time spent by operators ensuring correct connections and settings, especially when charging multiple vehicles.
Innovation Solution
A charge control system that performs pre-charging assessment operations upon connecting an external charger, providing user notifications through audio or visual signals to confirm proper setup, allowing operators to proceed with charging tasks confidently and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator manually checks charger connections and settings, then charging reliability is improved, but time consumption and operational efficiency deteriorate
Solution Approach 1:
The charging system performs self-verification through automated detection circuits that check connection status, voltage levels, and current flow. The system autonomously determines whether charging conditions are met without requiring manual operator verification, thereby maintaining reliability while eliminating time consumption.
Solution Approach 2:
The system incorporates feedback mechanisms through user notification devices that provide real-time information about charging status. The detection circuit continuously monitors charging parameters and feeds this information back to the operator via visual or audible signals, enabling automatic verification while keeping the operator informed.
2Measurement precision
If the operator double-checks equipment setup, then charging accuracy is improved, but operational complexity increases
Solution Approach 1:
The detection circuit automatically performs precise measurements of voltage, current, and connection status without requiring the operator to manually verify each parameter. The system self-evaluates whether charging conditions are satisfied, maintaining measurement precision while simplifying operational procedures.
Solution Approach 2:
Manual mechanical checking of connections and settings is replaced by electronic detection circuits that automatically sense and evaluate charging parameters. This substitution of mechanical verification with electronic sensing maintains accuracy while reducing operational complexity.
3Productivity
If automated pre-charging assessment is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The detection circuit performs preliminary assessment of charging conditions before actual charging begins. By pre-evaluating connection status, voltage levels, and current flow capabilities, the system prepares charging parameters in advance, improving productivity while the added complexity is confined to the initial assessment phase.
Solution Approach 2:
The detection circuit acts as an intermediary between the external charger and the lithium battery pack. It mediates the charging process by automatically evaluating conditions and controlling the charge-enable switch, thereby improving overall productivity while concentrating system complexity in the intermediary detection and control layer.
Data Source
AI summary
A charge control system includes a lithium battery configured to provide lithium battery power to a set of electrical loads, a user signaling device, and control circuitry coupled with the lithium battery and the user signaling device. The control circuitry is operative to: (A) detect availability of charge from an external charger, (B) in response to detection of the availability of charge from the external charger and prior to controlling the external charger to adjust the amount of charge stored by the lithium battery, perform a set of pre-charging assessment operations, and (C) based on the set of pre-charging assessment operations, provide a user notification via the user signaling device, the user notification indicating whether the lithium battery is properly setup for charge adjustment. When the user signaling device generates the user notification, the user is informed that the utility vehicle is properly connected to the external charger.