Battery Heating System Intermittent Control Low Temperature
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Solution Overview
Problem
Battery capacity utilization is reduced at low temperatures due to increased internal resistance, leading to lower actual capacity during charging, especially in low-temperature parking and charging scenarios.
Innovation Solution
A battery heating system and method that uses a temperature sampling module to collect real-time temperatures and a control module to manage a heating module, which intermittently heats the battery module set using external electric energy to maintain a preset expected heating temperature, thereby improving capacity utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the battery is charged at low temperature without heating, then the charging process can proceed without additional energy input, but the battery capacity utilization decreases due to increased internal resistance
Solution Approach 1:
The system performs preliminary heating of the battery before charging begins when the temperature is below the expected heating temperature. This preliminary action ensures the battery reaches an optimal temperature state before the charging process starts, thereby improving capacity utilization without wasting energy on heating during charging.
Solution Approach 2:
The heating module operates in intermittent periodic heating mode during the charging process when the temperature is within the acceptable range. This periodic heating maintains the battery temperature without continuous energy input, balancing energy efficiency with capacity utilization by heating only when necessary.
2Productivity
If the heating module operates continuously to maintain battery temperature, then the battery capacity utilization remains high, but the energy consumption increases
Solution Approach 1:
The heating module switches between working and standby states in periodic cycles. When the battery temperature is below the expected heating temperature, the heating module works to heat the battery. When the temperature reaches the expected level, the heating module enters standby mode. This periodic operation maintains high capacity utilization while minimizing energy consumption by avoiding continuous heating.
Solution Approach 2:
The temperature sampling module continuously monitors the battery temperature and provides feedback to the control module. Based on this feedback, the control module adjusts the heating module's operation state (working or standby) to maintain the battery temperature at the expected heating temperature, optimizing the balance between capacity utilization and energy consumption.
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 system effectively maintains battery capacity utilization by ensuring the battery operates at an optimal temperature, enhancing its performance and efficiency during charging.
Implementation Method 1
the heating module configured to enter the first heating mode to intermittently heat the battery module set by using external electric energy
Data Source
AI summary
The embodiments of the present disclosure disclose a battery heating system and method, and relate to the field of batteries. The battery heating system may include: a temperature sampling module configured to collect a target sampling temperature; a control module configured to control a heating module to enter a first heating mode when the target sampling temperature is not lower than a preset expected heating temperature; the heating module configured to enter the first heating mode to intermittently heat the battery module set by using a first portion of external electric energy, so as to maintain the target sampling temperature at the preset expected heating temperature.