Vehicle Electrical System Towing Voltage Control
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Solution Overview
Problem
Existing electrical systems in motor vehicles do not efficiently manage voltage supply during towing operations, risking short circuits and vehicle fires by providing unnecessary power to all systems, and lack selective control to ensure only essential components are powered.
Innovation Solution
A voltage-supply control device recognizes an external voltage supply from a towing vehicle and selectively powers only necessary subsystems, such as steering, brakes, and lighting, using a program-controlled processor and flexible electrical connections, with automatic isolation in case of disruptions to prevent short circuits and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all subsystems are supplied with voltage during towing operation, then complete functionality is maintained, but risk of short circuits and energy waste increases
Solution Approach 1:
The electrical system is divided into multiple subsystems, and during towing operations, only the necessary subsystems (such as lighting, steering, and braking) are supplied with voltage while other subsystems are isolated. This segmentation approach maintains essential functionality while reducing the overall risk exposure by limiting the scope of powered components.
Solution Approach 2:
Instead of providing voltage to all subsystems during towing, the system applies partial action by selectively powering only the minimum necessary subsystems required for safe towing operations. This reduces energy consumption and minimizes the potential for short circuits while maintaining adequate functionality.
2Loss of energy
If selective voltage supply to subsystems is implemented, then energy efficiency and safety improve, but system complexity increases
Solution Approach 1:
A voltage supply control device is introduced as an intermediary component that manages the selective distribution of voltage to subsystems during towing operations. This control device automatically identifies which subsystems require power and isolates others, providing intelligent voltage management without requiring complex manual intervention or system redesign.
3Ease of operation
If external voltage supply is provided during towing, then essential components can operate, but risk of feeding power into damaged components increases
Solution Approach 1:
The voltage supply control device performs preliminary assessment and preparation before activating voltage supply during towing operations. It pre-identifies which subsystems are functional and require power, and isolates any damaged or unnecessary subsystems before external voltage is applied, thereby preventing power from being fed into damaged components.
Data Source
AI summary
A suitable electrical system for a motor vehicle is provided, which system requires a voltage supply during a possible towing-away operation. A voltage-supply control device recognizes the provision of an external voltage supply, in particular by way of a towing vehicle for the motor vehicle, and controls the voltage supply in the motor vehicle in such a manner that only one or more subsystems of the entire electrical system of the motor vehicle are supplied with voltage.