Voltage Detecting Device with Periodic Active Standby Modes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing voltage detecting devices for battery packs do not account for temperature, leading to potential device failure due to heat rise, which can prevent accurate voltage detection.
Innovation Solution
A voltage detecting device with multiple detecting units, a mode switching unit, and a timing changing unit that alternates between active and standby modes, adjusting start and finish timings to reduce current flow and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detecting units continuously detect the voltages of the battery stacks, then the voltage detection accuracy is maintained, but the temperature of the device rises due to continuous current flow and heat generation
Solution Approach 1:
The detecting units perform voltage detection at predetermined intervals rather than continuously, alternating between active detection periods and standby periods. This periodic operation reduces the average current flow and heat generation while still achieving the required voltage monitoring accuracy for battery pack management.
Solution Approach 2:
The device dynamically switches between active mode (during voltage detection) and standby mode (between detections) to adapt its operational state. This dynamic switching allows the system to maintain detection capability when needed while minimizing heat generation during intervals, effectively managing the temperature-accurancy tradeoff.
2Reliability
If the detecting units operate in active mode continuously, then real-time voltage monitoring is achieved, but the device may break due to sustained heat generation
Solution Approach 1:
By implementing periodic voltage detection with predetermined intervals between active periods, the system maintains adequate monitoring reliability while preventing sustained heat accumulation that could lead to device failure. The standby periods between detections allow heat dissipation.
Solution Approach 2:
The system proactively introduces standby periods before heat buildup becomes critical, preventing device failure by anticipating and counteracting the harmful thermal effects before they can cause damage. This preliminary anti-action approach addresses the heat issue before it becomes a failure risk.
3Temperature
If the detecting units are switched to standby mode to reduce temperature, then heat generation is suppressed, but voltage detection capability is reduced
Solution Approach 1:
The system employs periodic detection cycles where the detecting units alternate between active detection modes and standby modes. During active periods, full detection capability is available; during standby periods, current flow is minimized. This periodic approach balances temperature control with maintained detection productivity over time.
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
This approach effectively suppresses temperature rise and periodic noise, ensuring reliable voltage detection and preventing device malfunction.
Implementation Method 1
the value of an electric current flowing in the detecting units is smaller than a predetermined value
Data Source
AI summary
There is provided a voltage detecting device. A plurality of detecting units are configured to detect voltages of a plurality of battery stacks of a battery pack having the plurality of battery stacks each having a plurality of battery cells connected, at intervals of a predetermined period, respectively. A mode switching unit is configured to perform switching between an active mode in which the detecting units detect the voltages and a standby mode in which the value of an electric current flowing in the detecting units is smaller than a predetermined value. A timing changing unit is configured to change start timings or/and finish timings of the active mode.