Motor Output Feedback Control for Powerline Component Protection
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Solution Overview
Problem
Existing electric vehicle systems lack effective mechanisms to monitor and adjust motor output to prevent damage to powerline components such as PTOs, traction drives, and hydraulic pumps by ensuring they do not exceed upper output limits or fall below lower output thresholds, thereby causing potential damage.
Innovation Solution
A motor output control system that includes a controller to monitor the current output of powerline components and adjust the electric motor's torque and power output iteratively to ensure that upper and lower thresholds are not exceeded, using sensors to detect torque and power and applying differential weights to prioritize critical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electric motor operates at maximum output to maximize productivity, then the productivity increases, but the powerline components may exceed their upper output limits and suffer damage
Solution Approach 1:
The controller continuously monitors the output of powerline components and uses this feedback to dynamically adjust the electric motor's torque and power output, ensuring that components operate within their safe output limits while maximizing productivity when conditions permit
Solution Approach 2:
The system dynamically adjusts motor output in real-time based on the operational state of connected powerline components, allowing the system to operate at maximum capacity when safe and reduce output when components approach their limits, rather than operating at a fixed conservative level
2Reliability
If the electric motor output is reduced to protect powerline components, then the reliability of powerline components improves, but the productivity of the vehicle system decreases
Solution Approach 1:
The controller applies partial torque limiting only when and where needed based on real-time monitoring of powerline component outputs, allowing the motor to operate at full capacity for functions that do not risk exceeding component limits while providing protection only where necessary
Solution Approach 2:
The system changes the operational parameters of the electric motor (torque and power output) dynamically based on the state of powerline components, adjusting these parameters in real-time to balance component protection with overall system productivity
3Reliability
If the system continuously monitors and adjusts motor output to prevent component damage, then the reliability of powerline components improves, but the device complexity increases
Solution Approach 1:
The controller performs multiple functions including monitoring powerline component outputs, determining appropriate torque limits, adjusting motor output, and managing overall power distribution, consolidating these functions into a single control unit rather than requiring separate systems for each task
Data Source
AI summary
A motor output control system may include an electric motor, at least one powerline component powered by the electric motor and a controller. The controller is configured to monitor and determine a current output of the at least one powerline component and automatically output control signals adjusting output by the electric motor based upon an output of the at least one powerline component.