Vehicle Zonal Motor Control With Central Target Speed Coordination
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Solution Overview
Problem
Existing vehicle electronic systems face challenges in efficiently controlling multiple zones with distributed controllers, leading to increased latency and reduced functionality and safety.
Innovation Solution
A centralized electronic system is implemented, utilizing a central controller to manage multiple zone controllers, which receive speed information, generate target speed information, and control motors based on this information, while zonal controllers adjust driving voltages to achieve precise control of vehicle zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a distributed controller system is used to control multiple vehicle zones, then device complexity is reduced and ease of manufacture is improved, but control latency increases and reliability deteriorates
Solution Approach 1:
The system divides the vehicle control into multiple zones, each managed by a dedicated zonal controller. This segmentation allows distributed control while maintaining reliability through localized control loops that reduce latency for zone-specific operations.
Solution Approach 2:
A central gateway controller acts as an intermediary between the central controller and multiple zonal controllers. This mediator coordinates control signals, manages communication protocols, and ensures reliable data transmission across the distributed system, resolving the reliability issue while maintaining distributed architecture benefits.
2Ease of manufacture
If a distributed controller system is used to control multiple vehicle zones, then ease of manufacture is improved, but control speed deteriorates
Solution Approach 1:
By segmenting control functions into zone-specific controllers, each controller handles only its designated zone, reducing communication overhead and processing delays. This enables faster local response while maintaining ease of manufacture through modular controller design.
Solution Approach 2:
Zonal controllers are pre-configured with zone-specific control parameters and algorithms, allowing them to execute control actions immediately upon receiving commands without waiting for centralized processing. This preliminary preparation accelerates control response while keeping the system manufacturable through standardized controller modules.
3Adaptability or versatility
If multiple zonal controllers are used to control different vehicle zones, then adaptability is improved, but device complexity increases
Solution Approach 1:
All zonal controllers use a standardized interface and communication protocol defined by the central gateway, allowing them to perform multiple functions across different zones. This universality enables adaptability to various zone configurations while reducing overall system complexity through standardized components.
Solution Approach 2:
The central gateway serves as an intermediary that abstracts the complexity of inter-controller communication. It manages data routing, coordinate transformations, and protocol conversions between different zonal controllers, enabling adaptability without requiring each controller to handle complex peer-to-peer interactions.
Data Source
AI summary
An electronic system may include a central controller configured to, receive speed information related to a current speed of a vehicle, generate target speed information representing a speed at which the vehicle will travel based on the speed information, and transmit the target speed information, and a first zonal controller configured to control a first zone among a plurality of zones of the vehicle, and a second zonal controller configured to control a second zone among the plurality of zones of the vehicle, and control at least one motor of the vehicle based on the target speed information received from the central controller, the at least one motor configured to drive at least one wheel of the vehicle.