Vehicle Motion Manager for Universal Backup Holding Status
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Solution Overview
Problem
Existing vehicle systems face a design burden due to the increasing number of categories of holding devices used as backups for maintaining a stopped vehicle state, requiring specific information transmission for each category, which increases time and cost.
Innovation Solution
A motion manager that transmits predetermined information indicating abnormality and control status of backup holding devices without identifying their category, allowing systems to grasp the status and abnormalities regardless of device variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the motion manager transmits information for identifying the category of the backup holding device to the setting device, then the setting device can distinguish between different types of holding devices (e.g., electric parking brake vs. parking lock system), but the design burden increases due to the need to preset specific information for each category of holding device
Solution Approach 1:
The patent extracts the category identification information from the transmitted data set. The motion manager transmits only the control status and abnormality information of the backup holding device, deliberately excluding the category identification information. This extraction approach reduces the information transmission burden while maintaining the essential functional information needed by the setting device.
Solution Approach 2:
The patent creates a universal information transmission format that works across different categories of holding devices. By transmitting generic control status and abnormality information that applies to all holding device types (electric parking brake, parking lock system, etc.), the system achieves multi-functionality without requiring category-specific information presetting.
2Adaptability or versatility
If the system supports multiple categories of backup holding devices (electric parking brake, parking lock system), then the system's adaptability increases, but the design time and cost increase due to requiring specific information presetting for each category
Solution Approach 1:
The patent implements a universal information transmission mechanism that accommodates multiple holding device categories without requiring separate design configurations for each type. The motion manager transmits standardized control status and abnormality information that can be processed uniformly by the setting device regardless of whether the backup holding device is an electric parking brake, parking lock system, or other type.
Solution Approach 2:
The patent segments the information transmission into essential functional components (control status and abnormality information) separate from category identification information. This segmentation allows the system to support multiple device categories by transmitting only the universally relevant functional information, eliminating the need for time-consuming category-specific presetting.
3Measurement precision
If the motion manager transmits detailed information including holding device category, then the setting device can perform more precise control, but the information transmission complexity and processing burden increase
Solution Approach 1:
The patent extracts and transmits only the essential control-relevant information (control status and abnormality information) while excluding category identification information. This extraction maintains control precision by focusing on the functional state of the holding device without adding the complexity of processing category-specific data.
Data Source
AI summary
A motion manager is configured to request at least one of a plurality of actuators provided in a vehicle to move the vehicle in accordance with a kinematic plan. The actuators include a second holding device having the holding function and being configured to execute backup control. The motion manager includes one or more processors configured to: set a stop holding failure class relating to an abnormality in the holding function of the second holding device; set a stop holding backup state of the holding function of the second holding device; and transmit the stop holding failure class and the stop holding backup state to a setting device that sets the kinematic plan.