Vehicle Control Interface for Secure Cross-Vendor ECU Integration
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Solution Overview
Problem
In vehicle control systems, compatibility issues arise when autonomous driving ECUs and vehicle power management ECUs are supplied by different vendors, leading to potential security risks due to unauthorized access to in-vehicle network information.
Innovation Solution
A vehicle control interface is introduced to connect the vehicle platform and autonomous driving platform, converting control commands and relaying information while filtering out unnecessary data, ensuring compatibility and security by using a control unit that acquires, converts, and transmits control commands specific to the vehicle platform, and notifies the autonomous driving platform of feasible acceleration, deceleration, and steering ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an autonomous driving ECU is separately provided to manage vehicle power without drastically changing the existing vehicle platform, then versatility and ease of integration are improved, but compatibility issues arise when ECUs are supplied by different vendors
Solution Approach 1:
The patent introduces a vehicle control interface as an intermediary component between the autonomous driving ECU and the vehicle power management ECU. This interface includes a control unit that converts control commands from the autonomous driving platform into formats compatible with the vehicle platform, enabling seamless communication and coordination between components supplied by different vendors while maintaining system reliability.
2Ease of operation
If the autonomous driving ECU is allowed to access in-vehicle network information, then functionality and control capability are improved, but security risks increase due to potential unauthorized access
Solution Approach 1:
The vehicle control interface acts as a security intermediary that filters and validates control commands before transmitting them to the vehicle platform. The control unit checks whether commands from the autonomous driving ECU are appropriate and within safe operating parameters, blocking unauthorized or harmful commands while allowing legitimate control operations to proceed.
Solution Approach 2:
The control unit transforms control commands by changing their parameters - converting high-level autonomous driving commands into specific vehicle platform commands with appropriate parameter values. This parameter transformation process inherently validates and secures the commands, ensuring they meet vehicle safety requirements before execution.
Data Source
AI summary
A vehicle control interface connects a vehicle platform including a first computer that performs travel control of a vehicle and an autonomous driving platform including a second computer that performs autonomous driving control of the vehicle. The vehicle control interface includes a control unit configured to execute: acquiring, from the second computer, a first control command including at least one of first data on designating acceleration or deceleration and second data on designating a travel track; converting the first control command into a second control command for the first computer; and transmitting the second control command to the first computer. The first control command is data for controlling the vehicle platform.