Vehicle Emergency Stop Control That Ignores Collision-Induced Inputs
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Solution Overview
Problem
Existing vehicle emergency stop systems may prematurely end emergency stop control due to minor changes in steering or brake operation caused by collisions, even when the driver's consciousness level remains low, potentially compromising safety.
Innovation Solution
A vehicle emergency stop system that initiates emergency stop control when no driving operation is detected for a predetermined time and continues control if a collision is detected within specific time frames or if driving operation is resumed within short periods after collision detection, ensuring intentional operation by the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the emergency stop control is ended when driving operation is detected during execution, then the system responds quickly to driver recovery, but the system may prematurely terminate emergency stop control when operation is caused by collision impact rather than driver intent
Solution Approach 1:
The system performs preliminary detection of collision before ending emergency stop control. By detecting collision in advance and using it as a criterion to maintain emergency stop control, the system prevents premature termination that would occur if only driving operation detection were used. This resolves the contradiction by adding a safety check that distinguishes between intentional driver operation and collision-induced operation changes.
2Ease of operation
If the system monitors only driving operation to determine driver consciousness, then the system remains simple to operate, but the system cannot distinguish between operation caused by driver intent and operation caused by collision impact
Solution Approach 1:
The system merges collision detection with driving operation detection to create a more accurate assessment of driver consciousness. By combining these two detection mechanisms, the system maintains ease of operation (still monitoring basic driving inputs) while significantly improving measurement precision (distinguishing between collision-induced and intent-driven operations). This resolves the contradiction by integrating additional sensing capability without complicating the overall system operation.
Data Source
AI summary
Provided is a vehicle emergency stop system (1) including a control device configured to start execution of emergency stop control for causing an own vehicle to perform an emergency stop by performing braking control on the own vehicle when an operation of a driving operation device of the own vehicle is not detected for a predetermined time, and to end the execution of the emergency stop control when the operation is detected during the execution of the emergency stop control. The control device is configured to continue the emergency stop control when a collision between the own vehicle and an object is detected during the execution of the emergency stop control and the operation is detected within a first predetermined time from a first time point at which the collision is detected, and when the operation is detected during the execution of the emergency stop control and the collision is detected within a second predetermined time from a second time point at which the operation is detected.