Battery Self-Heating Circuit Using Dual-Motor AC Loops
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Solution Overview
Problem
Existing battery self-heating solutions for dual drive motor systems are costly and limited, failing to enhance the heating rate of large-capacity batteries effectively.
Innovation Solution
A charging and discharging circuit that utilizes alternating current generated in the loop between dual drive motors and batteries, allowing flexible regulation of the charging and discharging loop without altering the motor structure, by tapping into neutral points and controlling switch modules for circuit connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If existing battery self-heating solutions are implemented in dual drive motor systems, then heating function is achieved, but cost increases and heating rate is limited
Solution Approach 1:
The patent makes the motor set serve dual functions: both propulsion and battery self-heating. By controlling the switch module to connect the motor set to the battery pack during heating mode, the motor windings act as heating elements utilizing resistive heating, eliminating the need for separate heating devices and reducing system cost
Solution Approach 2:
The battery pack uses its own power to heat itself through the motor set. The control module regulates the charging and discharging loop between the battery pack and motor set, creating a self-contained heating system that doesn't require external power sources or additional heating components
2Temperature
If motor structure is altered to enable battery self-heating, then heating rate improves, but manufacturing complexity increases
Solution Approach 1:
The patent separates the heating control function from the motor structure itself by using an independent switch module and control module. The motor set structure remains unchanged, while the control system is segmented into distinct modules that can be added without modifying the original motor design, simplifying manufacturing
Solution Approach 2:
The switch module acts as an intermediary between the battery pack and motor set, enabling heating mode without altering the motor structure. The control module mediates the charging and discharging loop, allowing flexible switching between propulsion and heating modes while keeping the motor structure intact
3Adaptability or versatility
If charging and discharging loop is flexibly regulated, then heating requirements are met, but control complexity increases
Solution Approach 1:
The patent implements dynamic control of the charging and discharging loop through the control module, which can flexibly adjust the switching between charging and discharging modes. This dynamic regulation allows the system to adapt to different heating requirements while using a relatively simple switch module structure
Solution Approach 2:
The control module changes the operational parameters of the motor set by controlling the charging and discharging current direction and magnitude. By adjusting these electrical parameters rather than physical structure, the system achieves heating adaptability without increasing mechanical complexity
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
Reduces the number of modification points and costs while enhancing the battery heating rate, enabling flexible adjustment of charging and discharging to meet diverse heating requirements.
Implementation Method 1
The battery self-heating is achieved by utilizing the alternating current generated in the charging and discharging loop between the dual drive motors and the battery
Data Source
AI summary
A charging and discharging circuit and method, and a computing device and a storage medium. Two energy storage elements in the charging and discharging circuit are connected by means of a first adjustment switch module, after a switch is turned on, heating control is performed, and self-heating of a battery is realized by means of an alternating current generated by a charging and discharging loop between a dual-driving electric motor and the battery.