Vehicle Power Distribution Module for Battery Drain Reduction
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Solution Overview
Problem
Conventional vehicle power distribution systems lead to undesired power drain and complex diagnostic strategies due to constant activation of electronic components and systems, resulting in battery drain and inefficient energy management.
Innovation Solution
A vehicle power control system comprising a power source, control circuits, electronic control units (ECUs), and a power distribution module with adjustable control circuit switches controlled by a processor based on current vehicle conditions and preset instructions, allowing for sequential or group power activation and deactivation of vehicle components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electronic components are directly connected to the vehicle's power supply, then the systems are always powered-up and ready for immediate operation, but the power drain completely drains the battery during extended periods when the vehicle is unattended
Solution Approach 1:
The power distribution system is segmented into multiple controllable circuits, each with its own power relay. This allows individual control of power supply to different electronic systems, enabling the vehicle to maintain readiness for critical systems while powering down non-essential systems during extended parking periods to prevent battery drain.
Solution Approach 2:
The system dynamically adjusts power distribution based on vehicle state and time duration. The controller monitors parking duration and automatically activates or deactivates power relays to appropriate circuits, transitioning the power state from always-on to selective-on based on operational needs and energy conservation requirements.
2Ease of operation
If all electronic systems are activated simultaneously via a two-position ignition switch, then all systems are ready for operation, but the diagnostic strategies become unnecessarily complex
Solution Approach 1:
The system divides electronic components into multiple independent circuits, each controlled by its own power relay. This segmentation allows for isolated testing and diagnostics of individual circuits and components, significantly simplifying diagnostic strategies compared to testing all systems simultaneously in a conventional two-position ignition setup.
Solution Approach 2:
The controller pre-configures power distribution sequences and diagnostic test procedures for each circuit. When a diagnostic issue arises, the system can preliminarily isolate and test specific circuits based on pre-programmed diagnostic strategies, reducing the complexity of troubleshooting compared to universal diagnostic approaches required for simultaneous system activation.
Data Source
AI summary
A power distribution module for use in a vehicle's power control system is provided, the use of which helps to minimize parasitic battery losses while providing additional control over the vehicle's electrical components and subsystems. The power distribution module includes a plurality of control circuits, each of which is under the control of its own circuit switch, and each of which is coupled to one or more electronic control modules. The power distribution module also includes a processor that is configured to close each of the circuit switches, thereby providing power to the corresponding control circuits, in response to current vehicle conditions and in accordance with a preset set of conditions.