Vehicle Power Supply Control Apparatus Mode Switching
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Solution Overview
Problem
Existing electric power supply control systems for vehicles do not effectively manage the switching between driving prioritizing and temperature control prioritizing modes, often causing the total electric power consumption to exceed the battery's maximum permissible output, leading to inefficiencies and potential performance issues.
Innovation Solution
An electric power supply control apparatus and method that prioritizes driving electric power or temperature controlling electric power within predetermined upper limit values, switching between modes while controlling the electric power distribution to ensure the total electric power usage stays within the battery's capacity, using a circuitry system to manage the EV control unit, which sets and adjusts electric power limits and request values to maintain a total electric power upper limit value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If driving electric power is prioritized over temperature controlling electric power, then vehicle driving performance is improved, but temperature control function may be insufficient
Solution Approach 1:
The system dynamically switches between driving prioritizing mode and temperature control prioritizing mode based on real-time vehicle conditions, battery state, and environmental factors. This dynamic adjustment allows the system to optimize driving performance when needed while ensuring temperature control requirements are met when priorities shift, resolving the contradiction between these two functions.
2Reliability
If temperature controlling electric power is prioritized over driving electric power, then temperature control function is improved, but vehicle driving performance may be reduced
Solution Approach 1:
The system employs dynamic mode switching that transitions between temperature control prioritizing and driving prioritizing based on real-time conditions. When temperature control is critical (e.g., extreme temperatures, battery thermal management needs), the system prioritizes temperature control; otherwise, it prioritizes driving performance, thus resolving the contradiction adaptively.
3Power
If the sum of driving electric power and temperature controlling electric power exceeds the battery's maximum permissible output, then both functions can operate at higher power levels, but system reliability and safety are compromised
Solution Approach 1:
The control system continuously monitors the battery's state of charge, output capacity, and the power consumption of both driving and temperature control functions. Based on this feedback, the system dynamically adjusts the power distribution and switches between operating modes to ensure the total power demand never exceeds the battery's maximum permissible output, maintaining system safety while optimizing performance.
4Device complexity
If mode switching between driving prioritizing and temperature control prioritizing is not effectively managed, then system complexity is reduced, but total electric power consumption may exceed battery capacity
Solution Approach 1:
The system pre-establishes clear switching criteria and control strategies for transitioning between driving prioritizing mode and temperature control prioritizing mode. By defining predetermined conditions for mode switching (such as battery state thresholds, temperature thresholds, and power demand levels), the system ensures smooth and effective management of mode transitions, preventing total power consumption from exceeding battery capacity while maintaining manageable system complexity.
Data Source
AI summary
The electric power supply control apparatus for a vehicle executes a driving prioritizing mode in which a supply of driving electric power is prioritized over a supply of temperature controlling electric power, and a temperature control prioritizing mode in which the supply of the temperature controlling electric power is prioritized over the supply of the driving electric power. While the modes are switched over, the apparatus controls the driving electric power or the temperature controlling electric power so that a sum of the powers stays at an upper limit value or smaller.