Battery Management Measurement with Parallel Pre-Charging Control
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Solution Overview
Problem
Conventional battery management systems experience inefficiencies and higher latencies due to sequential pre-charging operations, leading to increased resource usage and power consumption during voltage measurements.
Innovation Solution
Implementing independent control signals for pre-charging and selection operations in battery management systems, allowing simultaneous execution of these processes, thereby reducing latency and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sequential pre-charging operations are used, then component readiness is ensured, but measurement latency increases
Solution Approach 1:
The patent applies preliminary action by pre-charging components in advance of measurement operations. The control circuit generates pre-charging control signals that charge components before they are needed for measurement, ensuring they are ready when measurement begins. This resolves the contradiction by ensuring component readiness while minimizing the impact on measurement timing through proactive preparation.
Solution Approach 2:
The patent implements dynamics by making the pre-charging process adaptive and controllable. The control circuit dynamically adjusts pre-charging timing and duration based on system state, allowing the pre-charging to occur at optimal moments rather than fixed sequential intervals. This enables the system to balance component readiness with measurement speed flexibly.
2Reliability
If sequential pre-charging operations are used, then component charging is completed, but power consumption increases
Solution Approach 1:
The patent uses preliminary action to charge components only when needed before measurement operations, rather than maintaining continuous charging. The control circuit timing the pre-charging to occur just before measurement ensures components are charged without unnecessary prolonged energy consumption, optimizing the balance between charging completion and power usage.
Solution Approach 2:
The patent implements periodic action through controlled, intermittent pre-charging cycles rather than continuous charging. The control circuit activates pre-charging only in periodic intervals before measurement operations, allowing components to be charged efficiently without sustained power consumption. This periodic charging pattern reduces overall energy usage while ensuring components are ready when needed.
3Measurement precision
If sequential operations are used, then measurement accuracy is maintained, but resource usage increases
Solution Approach 1:
The patent applies preliminary action to prepare components for measurement operations in advance, allowing accurate measurements to be taken without resource-intensive sequential processing during the measurement itself. By pre-charging components before measurement, the system maintains measurement accuracy while reducing real-time resource consumption and improving overall productivity.
Data Source
AI summary
Systems, methods, and devices provide management and measurement of battery cells. Methods include providing, from a signal generator, a first enable signal to a first high voltage interface coupled to a first battery cell, the first enable signal transitioning a first component of the first high voltage interface from a depowered state to a powered state and providing, from the signal generator, a first selection signal to selection logic configured to select the first battery cell for a first measurement operation. Methods also include obtaining, at a processing device, a first voltage measurement from the first battery cell, and deselecting the first battery cell by decoupling the processing device from the first high voltage interface.