Vehicle Actuator Request Messaging With Plausibility References
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Solution Overview
Problem
Current vehicle actuator control systems face challenges in ensuring the technical correctness and timeliness of messages due to transmission errors, malfunctions, or software bugs, which can lead to unsafe and impractical vehicle functionality, especially in high-latency distributed networks.
Innovation Solution
A method and system for transmitting a request to an actuator that includes a data transmission message with a reference to a previous request, allowing for logical plausibility checks using redundant information, enabling the actuator control device to verify the correctness and timeliness of the message before acting on it, and implementing a maintenance mode for dynamic behavior validation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If redundant information (reference to previous request) is transmitted in each message, then measurement precision and reliability improve, but device complexity and data transmission volume increase
Solution Approach 1:
The patent transmits a reference to a previous request in advance within the current message structure. This preliminary inclusion of reference information enables the receiving system to perform plausibility checks by comparing the current request with the referenced previous request, thereby improving verification accuracy without requiring complex external validation mechanisms.
2Reliability
If plausibility checks are performed using redundant information, then reliability improves, but loss of time increases due to additional processing
Solution Approach 1:
Instead of transmitting full duplicate request data, the patent uses a reference (copy identifier) to the previous request. This copying approach allows the receiving system to retrieve and compare the referenced request data from local storage, reducing transmission time and processing overhead while maintaining the ability to perform comprehensive plausibility checks for control safety.
3Reliability
If comprehensive verification of message correctness is implemented, then reliability improves, but productivity decreases due to additional validation steps
Solution Approach 1:
The patent replaces complex mechanical-style redundant transmission systems with an information-based reference system. By substituting full data retransmission with reference identifiers and using logical comparison algorithms, the system achieves comprehensive message verification while minimizing processing overhead, thus maintaining actuator response speed and improving overall productivity.
Data Source
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AI summary
System or method for transmitting a request to an actuator (47) in a vehicle by means of a message (451) of a data transmission to an actuator control device of the actuator, including the (current) request to the actuator and a reference to an earlier request.