Variable Control Apparatus for Short-Term Driving Tendency
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Solution Overview
Problem
Existing vehicle control technologies fail to accurately determine a driver's short-term driving tendency, leading to unreliable vehicle responses, particularly due to limitations in expressing overall driving intention and inaccuracy when calculating acceleration tendencies, especially on congested roads and highways.
Innovation Solution
A variable control apparatus and method that differentially applies weight values to accelerator pedal operation and relative speed using fuzzy control theory to calculate a final short-term driving tendency index, incorporating data from various sensors such as vehicle speed, accelerator pedal position, and forward vehicle relative speed, with adjustable weight proportions based on vehicle speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If accelerator pedal opening degree and change rate are used to determine driving tendency, then acceleration driving tendency can be determined, but overall driving intention cannot be accurately expressed
Solution Approach 1:
The patent combines multiple parameters including accelerator pedal opening degree, change rate, vehicle speed, and forward vehicle relative speed into a comprehensive driving tendency determination system. This merging of parameters allows the system to capture both acceleration intentions and overall driving intentions, resolving the limitation of using accelerator pedal information alone.
Solution Approach 2:
The patent introduces forward vehicle relative speed as an additional dimension to the traditional accelerator pedal-based determination method. This new dimension enables the system to evaluate driving tendency from multiple perspectives, including relative position to forward vehicles, thereby improving overall driving intention expression.
2Productivity
If driving tendency is continuously calculated using accelerator pedal information, then acceleration tendency can be tracked, but reliability deteriorates in certain situations
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors multiple parameters including vehicle speed and forward vehicle relative speed, and adjusts the driving tendency determination based on the consistency of these parameters over time. This feedback approach filters out transient anomalies and improves reliability while maintaining continuous calculation capability.
Solution Approach 2:
The patent dynamically adjusts the weighting of different parameters based on vehicle operating conditions. For example, forward vehicle relative speed is given higher weight when vehicle speed exceeds a threshold value, while accelerator pedal information is weighted more heavily at lower speeds. This adaptive parameter weighting maintains reliability across different driving situations.
3Ease of manufacture
If uniform vehicle performance characteristics are used, then manufacturing is simplified, but customer driving tendencies are not reflected
Solution Approach 1:
The patent implements a dynamic performance adjustment system that modifies vehicle control parameters in real-time based on detected driving tendencies. The system continuously monitors driver behavior patterns and adjusts acceleration characteristics, deceleration characteristics, and other performance parameters to match the individual driver's preferences, thereby providing customization without requiring different hardware configurations.
Solution Approach 2:
The patent adjusts control parameters such as acceleration rate, deceleration rate, and gear shifting characteristics based on the determined driving tendency. By dynamically changing these software-controlled parameters, the system reflects individual customer driving tendencies while maintaining uniform hardware manufacturing.
Data Source
AI summary
A variable control apparatus and method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining a driving tendency, a first short-term driving tendency calculating module configured to calculate a first short-term driving tendency index using a fuzzy control theory based on an inputted opening degree of an accelerator pedal position sensor (APS), a second short-term driving tendency calculating module configured to calculate a second short-term driving tendency index using the fuzzy control theory based on an inputted forward vehicle relative speed, and a control module configured to calculate a final short-term driving tendency index by differentially applying weight values of the first short-term driving tendency index and the second short-term driving tendency index for each vehicle speed.