Parking-Mode Acceleration Suppression for Driver Intent Control
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Solution Overview
Problem
Existing acceleration suppression apparatuses for vehicles execute unwanted acceleration suppression control even when the driver intentionally tries to accelerate, leading to annoying situations, especially during starting at intersections.
Innovation Solution
An acceleration suppression apparatus that includes an in-vehicle sensor to acquire information about the vehicle's position and operation, and a control device that executes acceleration suppression control by controlling the drive or braking devices only when the vehicle is in a predetermined parking region and the traveling mode matches a predefined parking mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acceleration suppression control is executed based on accelerator pedal depression depth and change, then sudden acceleration can be suppressed, but unnecessary acceleration suppression control is frequently executed during normal driving operations
Solution Approach 1:
The system dynamically switches between two operation modes (first mode for normal driving and second mode for parking operations) based on detected driving conditions. This dynamic adaptation allows the acceleration suppression control to be selectively applied only when necessary, preventing unnecessary interference with normal driving operations while ensuring safety during parking maneuvers.
Solution Approach 2:
The system changes the operational parameters of acceleration suppression control by introducing mode switching based on parking operation detection. In the first operation mode, acceleration suppression is disabled or reduced; in the second operation mode, acceleration suppression is activated. This parameter change approach resolves the contradiction by adapting the control strength based on situational context.
2Reliability
If acceleration suppression control is executed based on accelerator pedal depression depth, then erroneous deep depression can be corrected, but intentional acceleration attempts are also suppressed
Solution Approach 1:
The system dynamically adapts its behavior based on the detected operation mode. During normal driving (first mode), the system does not apply acceleration suppression, allowing full driver intent to be executed. During parking operations (second mode), the system activates acceleration suppression to prevent erroneous movements. This dynamic adaptation resolves the contradiction between reliability and versatility.
Solution Approach 2:
The system applies different control qualities to different driving situations. Instead of applying uniform acceleration suppression across all conditions, the system selectively applies suppression only in the specific local context of parking operations, while leaving normal driving operations unaffected. This local quality approach preserves driver intent during normal driving while ensuring safety during parking.
Data Source
AI summary
Provided is an acceleration suppression apparatus having improved practicality. The acceleration suppression apparatus includes: an in-vehicle sensor (20) configured to acquire information relating to a position of an own vehicle and information relating to an operation of an operating element of the own vehicle to output the acquired information; and a parking assist ECU (10) configured to execute, based on the information acquired from the in-vehicle sensor (20), acceleration suppression control for suppressing acceleration of the own vehicle by controlling at least one of a drive device (30) or a braking device (40) mounted on the own vehicle. The parking assist ECU (10) is configured to execute the acceleration suppression control when, in a situation in which the own vehicle is positioned in a predetermined region including a parking space, a traveling mode of the own vehicle matches a predetermined mode defined in advance as a traveling mode when the own vehicle is being parked in the parking space.