Bidirectional Charger Load Classification for EV Discharge Control
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Solution Overview
Problem
Existing automobile-to-load discharge technologies face challenges in improving discharge efficiency during idle periods of electric vehicles.
Innovation Solution
A discharge control method and apparatus that acquire voltage signals and battery capacity information, determine load types, and control bidirectional chargers to discharge loads using preset strategies tailored to the load type and battery capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single discharge control strategy is used for all loads, then the control system is simple, but the discharge efficiency is low
Solution Approach 1:
The patent segments the discharge control by classifying loads into different types (e.g., resistive loads, inductive loads, capacitive loads) based on voltage signal characteristics. Each load type is assigned a specific discharge strategy, allowing differentiated control that improves discharge efficiency while maintaining manageable system complexity through structured classification
Solution Approach 2:
The system dynamically adjusts the discharge strategy based on real-time detection of load type and battery capacity information. The discharge control is not static but adapts to changing conditions, selecting appropriate strategies from multiple options to optimize performance for each specific operating scenario
2Productivity
If discharge strategies are tailored to different load types, then the discharge efficiency is improved, but the control complexity increases
Solution Approach 1:
The patent implements preliminary classification of load types before executing discharge operations. By detecting voltage signals and identifying load types in advance, the system prepares the appropriate discharge strategy beforehand, which simplifies the actual discharge control execution while achieving efficient differentiated discharge across multiple load types
3Use of energy by moving object
If battery capacity information is considered in discharge control, then the energy utilization is maximized, but the measurement and control difficulty increases
Solution Approach 1:
The system incorporates feedback mechanisms by continuously monitoring battery capacity information and using it to adjust discharge strategies. The bidirectional charger provides capacity information that feeds back into the control system, enabling real-time optimization of energy utilization while the automated feedback loop manages the complexity of monitoring and responding to capacity changes
Data Source
AI summary
The present disclosure discloses a discharge control method and apparatus, an electronic device and a storage medium, which belong to the technical field of automobiles. The discharge control method includes: acquiring battery capacity information of a bidirectional charger connected to the discharge apparatus; determining a load type corresponding to the acquired voltage signal according to a pre-established corresponding relationship between the voltage signal and the load type; and controlling the bidirectional charger to discharge the load according to a preset discharge strategy corresponding to the determined load type and the battery capacity information. In this way, the loads are classified, thereby discharging different types of loads using different discharge strategies, instead of discharging electricity to all the loads using a single discharge control strategy, which is beneficial to making full use of the electric energy of the electric automobile and improving the discharge efficiency thereof.