Vehicle Collision Control in Parking Lots After Sudden Acceleration
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Solution Overview
Problem
Existing secondary collision damage reduction systems struggle to accurately determine sudden accelerator pedal operations and light collisions in parking lots, leading to potential collisions and driver discomfort due to unnecessary braking force application.
Innovation Solution
A vehicle control device and method that includes an accelerator sudden depression operation determination unit, light collision determination unit, and parking lot determination unit to optimize secondary collision damage reduction control by adjusting control modes based on these determinations, particularly relaxing collision detection criteria in parking lots and enabling selective braking force generation or driving force suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secondary collision damage reduction control is activated by applying braking force when sudden accelerator depression is detected, then collision damage is reduced, but driver comfort deteriorates due to unnecessary braking in intentional acceleration scenarios
Solution Approach 1:
The patent applies different control strategies based on the detected situation: in parking lots, only driving force suppression is applied, while on roads, both driving force suppression and braking force generation are applied. This localized adaptation to different environments resolves the contradiction by providing appropriate responses for each context.
Solution Approach 2:
The control system dynamically adjusts its response based on real-time detection of vehicle location (parking lot vs. road) and collision status. The braking force generation control is conditionally activated or deactivated, making the system flexible and adaptive to different operational contexts, thereby preventing unnecessary braking while maintaining safety where needed.
2Measurement precision
If light collision detection sensitivity is increased to detect low-speed collisions in parking lots, then collision detection accuracy improves, but false detection increases due to normal vehicle vibrations or minor contacts
Solution Approach 1:
The patent implements location-specific detection thresholds: a first (lower) threshold is used in parking lots to detect subtle low-speed collisions, while a second (higher) threshold is used on roads to avoid false detections from normal vibrations. This localized threshold adjustment resolves the contradiction between sensitivity and false detection.
Solution Approach 2:
The system changes the detection parameter (acceleration threshold) based on the vehicle's location. By adjusting the threshold value according to the environment (parking lot vs. road), the system achieves high detection accuracy for light collisions in parking lots while maintaining reliability by filtering out normal vibrations on roads.
3Device complexity
If uniform control strategy is applied regardless of location, then system complexity is reduced, but control effectiveness deteriorates due to different appropriate responses needed in parking lots versus roads
Solution Approach 1:
The control system dynamically selects the appropriate control strategy based on detected location: in parking lots, only driving force suppression is applied, while on roads, both driving force suppression and braking force generation are applied. This dynamic adaptation maintains control effectiveness for different scenarios while managing system complexity through conditional logic.
Data Source
AI summary
A vehicle control device comprising: an accelerator sudden depression operation determination unit for determining whether a sudden depression operation of an accelerator pedal by a driver of the vehicle has been performed; a light collision determination unit for determining whether a light collision has occurred in the vehicle; and a control unit for executing a secondary collision damage reduction control when a control execution condition for determining that a light collision has occurred in the vehicle is satisfied by the light collision determination unit, wherein the control device includes a parking lot determination unit for judging whether a vehicle exists in a parking lot, and changes a control mode including at least one of control execution contents of the secondary collision damage reduction control, and control execution conditions according to a judgment result of the parking lot determination unit.