Vehicle Control Device for Automated Driving Adaptability
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Solution Overview
Problem
Current vehicle control systems for driving assistance do not enable automated driving control, as they cannot accept inputs that deviate from their intended functions, limiting their ability to modify acceleration/deceleration requests for smooth vehicle operation.
Innovation Solution
A control device with a processor that modifies target acceleration/deceleration requests received from a driving assistance controller, outputting adjusted requests to an accelerator and brake controller to enable automated driving control, including modifying deceleration by braking force when required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a driving assistance controller is used to assist a driver in driving, then the vehicle control system maintains its intended function for driving assistance, but it cannot accept inputs that deviate from its intended function, preventing automated driving control
Solution Approach 1:
The patent introduces an intermediary control device positioned between the driving assistance controller and the accelerator brake controllers. This intermediary device receives acceleration/deceleration requests from the driving assistance controller, modifies them according to automated driving control requirements, and outputs modified requests to the accelerator brake controllers. This mediator enables automated driving control without requiring changes to the existing driving assistance controller, thus resolving the contradiction between maintaining driving assistance function and enabling automated driving control.
2Ease of operation
If the driving assistance controller directly controls acceleration and braking, then the control system remains simple, but it cannot modify acceleration/deceleration requests for smooth vehicle operation in automated driving mode
Solution Approach 1:
The patent segments the control functions by separating the driving assistance control function from the automated driving control function. The driving assistance controller maintains its original function of assisting the driver, while the newly introduced control device handles automated driving control by modifying acceleration/deceleration requests. This segmentation allows each controller to specialize in its function, improving vehicle operation smoothness in automated mode without overcomplicating the overall system.
3Extent of automation
If the vehicle controller accepts modified acceleration/deceleration requests, then automated driving control is enabled, but the controller must process and modify multiple control parameters
Solution Approach 1:
The patent designs the control device with multi-functionality to handle both acceleration and deceleration control in a unified manner. The control device receives acceleration/deceleration requests, determines whether they represent acceleration or deceleration, and applies appropriate modification rules for each case. This universal approach enables automated driving control for both accelerating and decelerating scenarios while avoiding the need for separate control pathways, thus reducing overall processing complexity.
Data Source
AI summary
A control device of a vehicle includes a processor configured to modify target acceleration/deceleration of the vehicle according to acceleration/deceleration required of the vehicle in automated driving control of the vehicle. The target acceleration/deceleration is included in a first acceleration/deceleration request received via a communication interface from a driving assistance controller for assisting a driver of the vehicle in driving. The processor outputs a second acceleration/deceleration request including the modified target acceleration/deceleration via the communication interface to an accelerator controller.