Vehicle Traction Control System Pothole Detection Logic
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Solution Overview
Problem
Existing vehicle control systems, such as traction control systems (TCS), often unnecessarily reduce engine torque when a vehicle passes over a pothole, leading to unstable vehicle posture and undesired driving control, as they fail to accurately distinguish between pothole passages and other slip events.
Innovation Solution
A vehicle control system that uses wheel speed data to determine wheel spin tendencies and selectively cancels or prematurely releases engine traction control, distinguishing between pothole passages and other slip events by analyzing sudden increases and decreases in wheel spin inclination, thereby adjusting engine torque management accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TCS control is activated based on wheel spin detection, then wheel slippage is prevented and steering stability is improved, but unnecessary engine torque reduction occurs when passing over potholes causing unstable vehicle posture
Solution Approach 1:
The system dynamically adjusts the TCS control strategy by detecting wheel spin tendencies and determining whether to enter or cancel TCS control based on real-time wheel speed data and vehicle operating conditions, allowing the control system to adapt between preventing wheel slippage and avoiding unnecessary torque reduction
Solution Approach 2:
The controller continuously monitors wheel speed signals and wheel spin tendencies, using this feedback to determine whether the detected wheel spin is caused by pothole passage or actual slip conditions, and adjusts engine torque accordingly to prevent unnecessary TCS activation
2Reliability
If engine torque is reduced to prevent wheel slippage, then traction control is improved, but driving comfort and stability deteriorate when the reduction is unnecessary
Solution Approach 1:
The system performs preliminary detection of wheel spin tendencies before fully activating TCS control, allowing the controller to anticipate potential slip conditions and prepare appropriate torque adjustments while avoiding premature or unnecessary engine torque reduction
Solution Approach 2:
The controller changes the engine torque parameter dynamically based on the determined wheel spin tendency and TCS control entry/cancellation decisions, adjusting torque levels to match actual driving conditions rather than applying fixed torque reduction
Data Source
AI summary
A vehicle control system and a control method thereof are disclosed. The vehicle control system according to an embodiment includes an inputter configured to receive a wheel speed of a vehicle; and a controller configured to determine a wheel spin based on the wheel speed, determine whether the vehicle passes over a pothole based on the tendency of the wheel spin, and cancel engine traction control entry for a time corresponding to the wheel speed when it is determined that the vehicle passes over the pothole.