Lithium Battery Charge Verification With Pre-Charging Feedback
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Solution Overview
Problem
Conventional lithium-battery powered vehicles lack confidence in proper charging setup, leading to inefficiency 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 video signals to confirm proper setup, allowing operators to proceed with charging without further inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator manually checks and verifies charging setup, then charging reliability is improved, but time consumption and operational complexity increase
Solution Approach 1:
The charging system performs self-verification through automated detection of plug connection status, charge-enable switch position, and battery readiness. The system independently confirms whether charging conditions are met without requiring manual operator verification, thereby maintaining reliability while eliminating time consumption.
Solution Approach 2:
The system provides automatic feedback to the operator through visual indicators (lights) and audio signals that confirm whether the charging setup is correct. This feedback mechanism replaces manual verification by clearly indicating system status and readiness, ensuring reliability while reducing operational time.
2Measurement precision
If the operator manually verifies charging connections, then charging accuracy is improved, but operational efficiency deteriorates
Solution Approach 1:
The charging system automatically detects and verifies plug connection status, switch positions, and battery readiness conditions. This self-verification mechanism ensures accurate charging setup detection without requiring operator intervention, thereby maintaining measurement precision while improving operational efficiency.
Solution Approach 2:
The system replaces manual mechanical verification with electronic detection circuits that automatically sense connection status, switch positions, and battery conditions. This substitution of mechanical operator actions with electronic sensing maintains detection accuracy while significantly improving operational efficiency.
3Reliability
If pre-charging assessment operations are performed, then charging reliability is improved, but system complexity increases
Solution Approach 1:
The control circuitry performs multiple assessment functions (plug detection, switch position verification, battery readiness checking) using a single integrated system. This multi-functionality approach improves charging reliability through comprehensive assessment while avoiding the complexity increase that would result from separate dedicated circuits for each function.
Solution Approach 2:
The system combines multiple verification functions (connection detection, switch monitoring, battery status assessment) into a single integrated pre-charging assessment routine. This merging of functions improves reliability through comprehensive checking while reducing overall system complexity compared to having separate systems for each function.
4Ease of operation
If automated user notifications are provided, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system provides automatic feedback to users through visual indicators and audio signals that confirm charging setup status and readiness. This feedback mechanism improves ease of operation by eliminating the need for users to manually verify connections, while the complexity added is minimal and integrated into the existing control system.
Solution Approach 2:
The system uses simple intermediary indicators (lights and audio signals) to communicate charging status to the user. These intermediaries translate complex internal system states into simple, easily understood signals, improving ease of operation while adding minimal complexity through the use of standard indicator components.
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.