Pantograph Contact Pressure Control for Road Unevenness and Wear
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Solution Overview
Problem
The contact between the pantograph and the overhead line in road-driven motor vehicles is disrupted by road unevenness and damage, leading to arcing issues, and increasing contact pressure to prevent this results in excessive wear and abrasion.
Innovation Solution
A road-based motor vehicle equipped with a pantograph and an actuator system that adjusts contact pressure based on real-time sensor data and spatially resolved memory information, automatically optimizing contact pressure to adapt to road conditions, reducing contact loss frequency while minimizing wear, and using a self-learning mechanism to determine optimal pressure settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact pressure between pantograph and overhead line is increased to prevent contact loss, then reliability of contact is improved, but wear and abrasion increase
Solution Approach 1:
The patent implements dynamic adjustment of contact pressure based on real-time road condition detection. The system transitions from static fixed pressure to dynamic adaptive pressure, modifying the contact force according to actual road unevenness and damage conditions, thereby achieving reliable contact without excessive wear
Solution Approach 2:
The system changes the contact pressure parameter dynamically based on detected road conditions. By adjusting this critical parameter according to spatially resolved road quality data, the system optimizes the balance between maintaining reliable electrical contact and minimizing mechanical wear on the pantograph and overhead line
2Reliability
If contact pressure is increased to prevent arcing, then electrical contact stability is improved, but mechanical wear increases
Solution Approach 1:
The system performs preliminary detection of road conditions ahead of time using spatially resolved data from memory. By knowing upcoming road unevenness or damage, the system can pre-adjust contact pressure to prevent contact loss and arcing before they occur, rather than reacting after the problem arises
Solution Approach 2:
The system uses sensor data to continuously monitor actual contact conditions and compares this feedback with desired contact parameters. Based on this feedback loop, the control system adjusts contact pressure in real-time to maintain stable electrical contact while minimizing excessive force that would cause wear
Data Source
Figure 1~2
AI summary
The invention relates to a road-guided motor vehicle (1) having at least one power collector (2) for at least one overhead line (3) and having at least one actuator arrangement (4), wherein the motor vehicle (1) is designed such that the at least one power collector (2) is controlled by means of the actuator arrangement (4) from a first, pantograph-lowered position into a second, pantograph-raised position or vice versa, wherein the power collector (2) is assigned at least one sensor arrangement (5) which has a data connection to a control unit (6) of the actuator arrangement (4), wherein the control unit (6) is designed such that, by means of the data (D) of the sensor arrangement (5), a contact pressure of the power collector (2) against the overhead line (3) is detected or ascertained, a memory (7) with spatially resolved contact pressures for the power collector (2), and having a position ascertaining unit (8), wherein the motor vehicle (1) is designed such that, at a position of the motor vehicle (1) ascertained by the position ascertaining unit (8), an associated contact pressure is read out from the memory (7) and is automatically set by the control unit (6) or is signalled to the motor vehicle driver, and to a method for raising the pantograph of a power collector (2) of a motor vehicle (1) onto an overhead line (3).