Remote Control Device Torque Adjustment for Immovable Vehicles
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Solution Overview
Problem
Remote smart parking assist systems face limitations in detecting road grades and obstacles, leading to immovable vehicles and restricted functionality, especially on steep hills or with road steps, due to maximum torque restrictions.
Innovation Solution
A remote control device and system that allows users to manually control torque output via a user interface, extending the sliding range on a slide bar when the vehicle is immovable, and transmitting control signals to the vehicle's remote parking assist system to provide additional torque, enabling the vehicle to overcome obstacles like road grades and steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the maximum output torque of the engine is restricted to prevent collision, then safety is improved, but the vehicle becomes immovable on steep hills or roads with steps
Solution Approach 1:
The patent implements dynamic torque control by allowing the driver to manually adjust torque output through a user interface (slide bar) when the vehicle becomes immovable. The system transitions from fixed maximum torque restriction to dynamic adjustable torque, enabling the vehicle to overcome obstacles like steep hills or road steps while maintaining safety through controlled torque increase.
Solution Approach 2:
The system changes the torque parameter from a fixed maximum value to an adjustable range. When the vehicle detects an immovable state, it allows the driver to increase torque output beyond the normal maximum by manipulating the slide bar, thereby adapting to different terrain conditions while maintaining overall safety through controlled parameter adjustment.
2Reliability
If the RSPA system recognizes a control limit situation and releases the function, then collision prevention is maintained, but the actual availability of the system deteriorates
Solution Approach 1:
The system provides self-service by automatically detecting when the vehicle is immovable and activating the manual torque adjustment interface. The driver can then resolve the immovable state issue themselves by adjusting the torque through the user interface, eliminating the need for system shutdown and maintaining continuous operation availability.
Solution Approach 2:
The system prepares for potential immovable states by having the manual torque adjustment interface ready to activate. When the vehicle becomes immovable, the system immediately transitions to the manual control mode without releasing the function, allowing the driver to preemptively increase torque before attempting movement again.
3Device complexity
If the ultrasonic sensors and braking performance are limited, then system simplicity is maintained, but detection precision and control capability are insufficient for steep roads
Solution Approach 1:
The patent introduces a manual torque adjustment interface as an intermediary between the limited sensor system and the engine control. This intermediary allows the driver to compensate for insufficient sensor detection capability by manually adjusting torque based on their perception of road conditions, effectively bridging the gap without adding complex sensors.
Data Source
AI summary
A remote control device includes: a user input device that receives a user input; a display that displays a user interface for controlling torque of a power source of a vehicle; a communication device in wireless communication with a remote parking assist system; and a processor that operates the user interface in response to the user input and transmits a control signal according to an operation of the user interface to the remote parking assist system. The processor resizes a component of the user interface and displays the resized component when the vehicle is immovable while the remote parking assist system is in operation.