Electric Vehicle Throttle Control Error Detection Feedback Circuit
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Solution Overview
Problem
Electric vehicle throttle control systems lack effective error detection and response mechanisms, leading to potential operational issues and safety hazards due to undetected signal errors.
Innovation Solution
A throttle control system that includes a throttle position sensor, a zero position sensor, and a controller to generate throttle control signals, with a feedback circuit for error detection and responsive actions based on error severity, ensuring safe and reliable operation by adjusting throttle output accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a feedback circuit is added to detect error conditions in the throttle control signal, then the reliability of the throttle control system is improved, but the device complexity increases
Solution Approach 1:
The patent implements a feedback circuit that receives the throttle control signal from the controller and feeds it back to compare with the original signal. This feedback mechanism enables error detection by identifying discrepancies between the original and feedback signals, thereby improving system reliability without requiring complete system redesign.
Solution Approach 2:
The feedback circuit acts as an intermediary component between the controller and the throttle actuator. It intercepts the throttle control signal, performs error detection through comparison, and provides feedback information to the controller, thus mediating the signal flow to enhance reliability while maintaining system functionality.
2Object-affected harmful factors
If error detection and responsive actions are implemented, then the safety of the electric vehicle is improved, but the device complexity increases
Solution Approach 1:
The system performs preliminary error detection before the throttle control signal is executed by the motor controller. The feedback circuit compares the signal early in the process, allowing the controller to take preventive actions (such as disabling the motor or alerting the operator) before harmful effects can occur, thus improving safety proactively.
Solution Approach 2:
The feedback mechanism provides real-time monitoring of the throttle control signal integrity. When errors are detected, the system can respond by adjusting motor operation or alerting the operator, creating a closed-loop safety system that prevents harmful conditions while maintaining operational awareness.
3Measurement precision
If a feedback circuit is added to compare throttle control signals, then the measurement precision of error detection is improved, but the device complexity increases
Solution Approach 1:
The feedback circuit receives a copy of the throttle control signal and compares it with the original signal to detect errors. This feedback-based comparison enables precise measurement of signal integrity by identifying discrepancies in magnitude or characteristics, thereby improving measurement precision through direct signal analysis.
Solution Approach 2:
The feedback circuit serves as an intermediary measurement device that analyzes the throttle control signal without disrupting the main control flow. It extracts signal characteristics for comparison and error detection, providing precise measurement capabilities while maintaining the integrity of the original control signal path.
Data Source
AI summary
A throttle control system is provided for generating a throttle control signal in an electric vehicle. The throttle control system includes: a throttle position sensor operable to detect a throttle twist input by an operator and to responsively generate a throttle twist input signal; a controller operatively coupled to the throttle position sensor for receiving the throttle twist input signal and responsively generating a throttle control signal; and a feedback circuit operatively coupled to the controller for receiving the throttle control signal and outputting a corresponding feedback signal to the controller; wherein the controller compares the feedback signal and the throttle control signal to detect an error condition in the throttle control signal, and when an error condition is detected, determines a responsive action corresponding to the severity of the error condition.