Battery Distribution Module Voltage Stabilization During Cranking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery distribution systems face challenges in stabilizing voltage during engine cranking events, leading to voltage drops that cause diagnostic faults and electrical anomalies, particularly due to the limitations of DC-DC boost converters in handling higher load powers and the cost and packaging constraints of pre-fuse centers.
Innovation Solution
A battery distribution module is assembled with electrically coupled switch devices and an integrated controller on a printed circuit board, which manages the switching of primary and auxiliary energy storage devices to maintain stable voltage to auxiliary loads during engine start and stop events, integrating the controller directly with the primary energy storage device to optimize voltage stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a DC-DC boost converter is used to stabilize voltage during engine cranking, then voltage stability is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the DC-DC boost converter functionality with the existing pre-fuse center battery distribution unit, integrating voltage stabilization into the current distribution architecture rather than adding a separate converter system. This reduces overall device complexity while maintaining voltage stability during cranking events.
Solution Approach 2:
The pre-fuse center is designed to perform multiple functions: traditional battery distribution, voltage stabilization during cranking, and protection of auxiliary loads. By making the system multi-functional, the patent eliminates the need for separate DC-DC converter hardware, reducing complexity while achieving voltage stability.
2Reliability
If a DC-DC boost converter is used to stabilize voltage, then voltage stability is improved, but packaging space requirements increase
Solution Approach 1:
The DC-DC boost converter circuitry is integrated into the pre-fuse center housing, utilizing the existing packaging space rather than requiring additional space in the passenger compartment. This merging approach eliminates the need for separate converter packaging.
Solution Approach 2:
The voltage stabilization functionality is nested within the existing pre-fuse center structure, with the DC-DC converter components housed inside the same enclosure that contains the battery distribution terminals and protective fuses, thereby eliminating additional packaging space requirements.
3Productivity
If a pre-fuse center is used to distribute power to auxiliary loads, then power distribution is improved, but cost and packaging constraints increase
Solution Approach 1:
The pre-fuse center is enhanced to perform traditional power distribution plus voltage stabilization during cranking events, making it a multi-functional unit that addresses both power distribution needs and voltage stability requirements without adding separate systems.
Solution Approach 2:
The patent combines the battery distribution function with the DC-DC voltage stabilization function in a single integrated pre-fuse center unit, reducing the number of separate components and simplifying the overall system architecture while improving both power distribution and voltage stability.
Data Source
AI summary
Apparatus for voltage stabilization in a vehicle includes a battery distribution module having a load module managing electrical power to one or more auxiliary loads, a first switch coupling a starter motor and an ESD to the load module only when closed, a second switch coupling an auxiliary ESD to the load module only when closed, and a controller integrated with a PC board attached to the first and second switch devices. The controller is configured to control opening and closing of the first and second switches based on at least one of a plurality of signals received by the controller. The primary ESD is electrically coupled a primary fuse terminal of the battery distribution module which electrically couples the primary ESD to a second terminal of the first switch and the starter motor. The auxiliary ESD is electrically coupled to an auxiliary fuse terminal of the battery distribution module which electrically couples a first terminal of the second switch to the auxiliary ESD.