Automated Pedal Sensor Profile Generation for Speed Control
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Solution Overview
Problem
Existing vehicle speed control systems lack an efficient method to automatically generate and utilize a pedal sensor profile, leading to potential speed limit violations and ECU errors due to varying pedal sensor configurations across different vehicles.
Innovation Solution
A system and method for automatically detecting and generating a pedal position sensor profile by correlating pedal positions with output signals from multiple sensors, allowing for the creation of a linear relationship and storage of this profile to program speed control devices, enabling precise speed control based on operator input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual calibration methods are used for pedal sensors, then speed control accuracy can be achieved, but the process is time-consuming and prone to human error
Solution Approach 1:
The patent replaces manual mechanical calibration processes with an automated electronic system. A calibration device automatically reads sensor outputs at multiple pedal positions, processes the data through algorithms, and generates calibration profiles without human intervention, thereby eliminating time loss while maintaining precision
Solution Approach 2:
The system enables self-calibration by automatically detecting pedal positions, reading sensor outputs, and generating calibration profiles without requiring external manual calibration. The automated process serves itself by eliminating the need for human operators to perform repetitive calibration tasks
2Measurement precision
If vehicle-specific manual calibration is performed for each vehicle, then accuracy is maintained, but productivity decreases due to repetitive calibration processes
Solution Approach 1:
The system performs preliminary automated data collection and analysis to generate calibration profiles. By pre-establishing the calibration framework and automatically populating it with sensor data, the system maintains vehicle-specific accuracy while dramatically increasing calibration throughput compared to manual methods
Solution Approach 2:
The automated calibration device replaces manual calibration procedures with electronic data collection and processing. This substitution enables rapid calibration of multiple vehicles while maintaining the precision required for each vehicle's unique sensor configuration
3Productivity
If automated calibration is implemented, then productivity increases, but measurement precision may be compromised without proper sensor profiling
Solution Approach 1:
The system replaces manual measurement processes with automated electronic sensing and data processing. The automated device reads sensor outputs at precisely controlled pedal positions and uses algorithms to generate accurate calibration profiles, maintaining measurement precision while achieving high productivity
Solution Approach 2:
The automated calibration system incorporates feedback mechanisms by reading actual sensor outputs at multiple pedal positions and using this data to refine and validate the calibration profile. This feedback loop ensures measurement precision is maintained while enabling automated high-speed calibration
4Reliability
If multiple pedal sensors are present in a vehicle, then redundancy is provided, but determining which sensor to use adds complexity
Solution Approach 1:
The calibration device is designed to work universally with multiple different pedal sensor types and configurations. It automatically identifies and calibrates the appropriate sensor(s) using standardized procedures, thereby providing reliability through redundancy support while avoiding the complexity of manual sensor selection
Solution Approach 2:
The system performs self-identification of the master pedal sensor by automatically analyzing sensor outputs and determining which sensor to use as the primary reference. This self-service capability eliminates the need for manual sensor selection while maintaining reliability through redundant sensor support
Data Source
AI summary
One or more techniques and/or systems are disclosed for automatically obtaining a profile for a set of accelerator pedal position sensors in a target vehicle. The profile can comprise a correlation of the position of the pedal to an output signal for one or more sensor in the set of sensors. A pedal position sensor signal reader can be used to automatically detect signals from one or more pedal position sensor in the target vehicle's accelerator pedal, while the pedal is released, depressed, and moving between the released and depressed positions. A pedal profile can be automatically generated using the output signals and corresponding pedal positions. Obtained data can be used to program a speed control device for the target vehicle. Correlated output can be used to adjust the speed of the vehicle by sending an emulated signal to the ECM, which may adjust the speed control system.