Preview Vehicle Motion Control for Occupant Posture Guidance
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Solution Overview
Problem
Existing vehicle control systems struggle to intuitively notify occupants of changes in the vehicle's running environment or motion state, such as turns or decelerations, leading to discomfort and inconvenience.
Innovation Solution
The system acquires control conditions related to the running environment and motion state of the vehicle in a preview area ahead and generates vehicle behaviors, like roll or pitch behaviors, before the vehicle enters that area, using control commands for braking and driving forces to notify the occupant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display, vibration, sound, or smell is used to guide occupant posture, then the occupant can receive information about vehicle motion changes, but the occupant needs to understand the meaning and take action based on understanding, which reduces intuitiveness and convenience
Solution Approach 1:
The patent replaces information-based guidance systems (display, sound, smell) with a mechanical guidance system that directly applies physical forces to the occupant's body through controlled vehicle motion. This substitution eliminates the need for cognitive processing and intuitive understanding, as the mechanical guidance directly induces the desired posture adjustment through force application.
Solution Approach 2:
The vehicle's motion control system acts as an intermediary between the detected vehicle state and the occupant's posture. Instead of directly communicating vehicle motion information to the occupant, the system mediates by generating compensatory vehicle behaviors that physically guide the occupant into the appropriate posture, bridging the gap between vehicle dynamics and human response.
2Object-affected harmful factors
If the occupant is guided to assume a posture in preparation for acceleration or turn, then discomfort can be reduced, but the guidance method requires cognitive understanding and action which makes it inconvenient
Solution Approach 1:
The system performs preliminary action by detecting upcoming vehicle motion changes (acceleration, deceleration, turns) in advance and generating compensatory vehicle behaviors before the actual motion occurs. This preliminary guidance allows the occupant's body to naturally adjust to the desired posture through controlled force application, reducing discomfort from sudden motion changes without requiring cognitive processing or delayed reaction.
Solution Approach 2:
The patent replaces cognitive-based guidance with mechanical guidance through controlled vehicle motion. The system directly manipulates the vehicle's dynamics to create forces that naturally guide the occupant's posture, eliminating the need for the occupant to understand instructions and take voluntary action, thereby improving convenience while reducing discomfort.
3Stability of the object's composition
If control commands are output continuously, then the vehicle behavior can be maintained, but energy consumption increases and the preview effect is lost
Solution Approach 1:
The system implements periodic action by outputting control commands in discrete intervals rather than continuously. Control commands are generated at specific timing points (when preview area conditions are met) and executed for predetermined durations, creating a rhythmic on-off pattern that maintains vehicle behavior stability while eliminating continuous energy consumption. This periodic control replaces sustained actuation with timed bursts of control activity.
Solution Approach 2:
The system performs preliminary action by generating control commands in advance before the vehicle actually enters the preview area. This allows the vehicle behavior to be prepared and initiated ahead of time, maintaining stability during the critical transition period while enabling the system to return to a low-energy state once the behavior is established, thereby reducing overall energy consumption.
Data Source
AI summary
In one aspect, a vehicle control apparatus, a vehicle control method, and a vehicle control system according to the present invention acquire control conditions including at least one of information about a running environment and information about a motion state of a vehicle in a preview area ahead on a running path on which the vehicle is running, start outputting control commands for generating a vehicle behavior based on the control conditions before the vehicle reaches the preview area, and stop outputting the control commands when the vehicle enters the preview area. In this way, an occupant in the vehicle can easily assume a posture in preparation for change in running environment or motion state of the vehicle.