Snowplow Power Management for Battery Discharge Control
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Solution Overview
Problem
Existing vehicle power systems struggle to manage power distribution efficiently when a snowplow system is activated, leading to significant battery discharge and voltage drops, without adequate dynamic adjustment to power consumption.
Innovation Solution
Integration of a supercapacitor and power management system that dynamically adjusts power distribution by recognizing snowplow operation through sensors and controllers, using a shunt resistor to monitor power flow and selectively disable non-essential loads to prevent battery drain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery supplies power to both auxiliary loads and the snowplow system simultaneously, then all vehicle functions remain operational, but the battery experiences significant discharge and voltage drops
Solution Approach 1:
The patent segments the vehicle's electrical load into two categories: essential loads that must remain operational and non-essential auxiliary loads that can be disabled. The controller divides the total power demand and selectively manages each segment, disabling non-essential loads when snowplow operation is detected to prevent battery discharge while maintaining critical functions.
Solution Approach 2:
The system dynamically adjusts power distribution based on real-time conditions. When the controller detects snowplow operation through current monitoring, it automatically reconfigures the power management strategy by disabling specific auxiliary loads. This dynamic adaptation allows the system to respond to changing power demands and maintain battery voltage within acceptable ranges.
2Loss of energy
If the system dynamically adjusts power distribution by disabling auxiliary loads during snowplow operation, then battery discharge is prevented, but the system complexity increases with additional sensors and controllers
Solution Approach 1:
The controller serves multiple functions: it monitors current draw to detect snowplow operation, determines which auxiliary loads to disable, and manages the overall power distribution strategy. By making the controller multi-functional, the patent avoids adding separate dedicated components for each task, thereby managing system complexity while achieving effective power conservation.
Solution Approach 2:
The system uses the existing electrical architecture and controller resources to monitor and manage power distribution. The controller leverages its existing capability to monitor electrical parameters and extends this function to detect snowplow operation and manage auxiliary load disconnection, allowing the system to self-regulate without requiring entirely new monitoring infrastructure.
3Productivity
If the controller monitors power consumption in real-time to dynamically adjust auxiliary load power, then optimal battery management is achieved, but the measurement and control requirements increase
Solution Approach 1:
The controller continuously monitors the electrical current draw from the battery and uses this feedback to detect when the snowplow system is operating. Based on this real-time feedback, the controller automatically adjusts power distribution by disabling auxiliary loads when necessary. This closed-loop feedback mechanism enables efficient power management while using standard monitoring capabilities.
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
Effectively manages power distribution during snowplow operations by preventing battery discharge and maintaining essential functions, ensuring the vehicle can operate without unexpected shutdowns by dynamically adjusting power supply based on real-time power consumption.
Implementation Method 1
using a shunt resistor to monitor power flow
Data Source
AI summary
One or more controllers, responsive to indication that a snowplow system is consuming power and a battery is discharging, reduce power supplied by the battery to loads by an amount that depends on an expected power consumption of the snowplow system such that the amount changes as the expected power consumption changes.