Vehicle Acceleration Suppression Override Using Dual Driver Inputs
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Solution Overview
Problem
Existing vehicles face difficulty in accelerating due to unintended execution of acceleration suppression control even when a driver intentionally presses the accelerator pedal, leading to decreased convenience.
Innovation Solution
A vehicle system that includes a controller to perform acceleration suppression control based on accelerator pedal pressing, which can be canceled when two or more specific operation elements, such as the shift-up and shift-down levers, are operated simultaneously by the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acceleration suppression control is performed based on accelerator pedal pressing, then safety is improved by preventing sudden acceleration from erroneous pressing, but convenience deteriorates when the driver intentionally presses the accelerator pedal
Solution Approach 1:
The acceleration suppression control is made dynamic by allowing it to be canceled under specific conditions. When two or more operation elements are operated simultaneously, the control is canceled to enable intentional acceleration, while maintaining suppression during normal operation to prevent erroneous acceleration. This dynamic adjustment resolves the contradiction between safety and convenience.
Solution Approach 2:
The system changes the control parameter (acceleration suppression state) based on the number of simultaneously operated operation elements. When the count reaches two or more, the suppression control is canceled, allowing full acceleration. This parameter-based control strategy enables the system to adapt between safety-oriented and convenience-oriented modes.
2Object-affected harmful factors
If acceleration suppression control is continuously active, then harmful factors are reduced by preventing erroneous acceleration, but useful action is limited when rapid acceleration is needed
Solution Approach 1:
The system prepares for potential rapid acceleration needs by monitoring multiple operation elements. When the driver performs a specific combination of operations (two or more elements), the system preemptively cancels the acceleration suppression control, enabling immediate rapid acceleration without delay. This preliminary detection and response mechanism resolves the contradiction between preventing erroneous acceleration and enabling needed rapid acceleration.
Data Source
AI summary
A vehicle includes one or more processors. The one or more processors include a controller. The controller is configured to: perform an acceleration suppression control, in which the acceleration suppression control is configured to suppress acceleration of the vehicle based on pressing of an accelerator pedal of the vehicle performed by a driver who drives the vehicle; and cancel the acceleration suppression control, when two or more operation elements provided in the vehicle are operated by the driver.