Dynamic Load Management for Electric Vehicle Power Supply
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Solution Overview
Problem
Existing energy supply systems for electrically driven vehicles on road networks face challenges in optimizing load pickup control, leading to power peaks and inflexible energy network adjustments, resulting in higher installation and operating costs.
Innovation Solution
A communication-based energy supply system that wirelessly transmits driving instructions to vehicles to restrict power consumption, featuring vehicle-side control units and on-board output units, allowing vehicles to adjust power usage dynamically, and includes a control center to generate instructions based on real-time conditions such as traffic, weather, and vehicle class.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the overhead contact line system is designed with a load limit for electrical power output, then the system can prevent power peaks and ensure stable operation, but the system lacks flexibility in adjusting to varying demand and results in higher installation and operating costs
Solution Approach 1:
The patent implements dynamic load management by enabling vehicles to switch between different power sources (catenary and on-board energy storage) based on real-time conditions. The system dynamically adjusts power distribution through vehicle-side control units that respond to traffic, weather, and gradient conditions, allowing the overhead contact line system to operate reliably at reduced capacity while maintaining adaptability to varying demand through flexible power source switching.
2Reliability
If the catenary system is designed with a conservative load limit, then power peaks are avoided and stable operation is ensured, but installation and operating costs increase due to oversizing the energy network
Solution Approach 1:
The patent changes the operational parameters of the energy supply system by introducing on-board energy storage devices that can supplement or replace catenary power. This allows the overhead contact line system to be designed with a lower, more economical load limit while vehicles can still meet peak power demands by switching to or charging from their on-board storage, thereby reducing installation and operating costs without compromising reliability.
3Adaptability or versatility
If vehicles are equipped with on-board energy storage devices, then flexibility in power management is improved and power peaks are reduced, but the device complexity and initial costs of vehicles increase
Solution Approach 1:
The patent implements a universal control architecture where the vehicle-side control unit manages multiple power sources (catenary and on-board energy storage) through a single integrated system. This multi-functional control unit handles charging, discharging, power switching, and coordination with infrastructure, thereby improving power management flexibility while minimizing the increase in device complexity through consolidated system design.
4Productivity
If real-time communication and control systems are implemented, then power consumption can be optimized and load pickup control improved, but the system complexity and communication infrastructure costs increase
Solution Approach 1:
The patent implements a feedback-based control system where vehicle-side control units continuously communicate with the energy supply management to report status and receive control instructions. The system uses feedback from traffic conditions, weather, road gradients, and vehicle state to dynamically optimize power consumption and load pickup, achieving productivity improvements while managing communication complexity through standardized feedback loops and protocols.
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
This solution enables tighter design of the overhead contact line system, reduces power peaks, and adjusts energy network flexibility according to demand, lowering installation and operating costs while optimizing power control.
Implementation Method 1
a communication system for the wireless transmission of driving instructions that restrict electrical power consumption to vehicles (20) traveling on the route section (S)
Data Source
Figure 1
AI summary
The invention relates to an energy supply system (10) for non-track-bound, electrically powered vehicles (20) on a section (S) of a road network. It comprises an overhead contact line system (11) with a contact wire (12) running above a lane (L) of the road section (S) and with a substation (13) for supplying the contact wire (12) with electrical energy. The contact wire (12) can be connected to the contact wire (12) by current collectors (22) of the vehicles (20) for energy supply. The overhead contact line system (11) is designed with a load limit for the electrical power output on the road section (S).By including in the energy supply system (10) a communication system (14) for wireless transmission of driving instructions (DI) limiting electrical power consumption to vehicles (20) traveling on the track section (S) and vehicle-side control units (23) for automatic conversion of transmitted driving instructions (DI) into power-consuming components (21) of the vehicles (20) and/or vehicle-side output units (25) for outputting transmitted driving instructions (DI) to drivers of the vehicles (20), the control of load consumption in the track section (S) can be improved.