Vehicle Protection Control Unit With Wired-Programmable Processing
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Solution Overview
Problem
Control units for activating personal protection devices in vehicles face challenges in processing vast amounts of data from varying sensors quickly, requiring high processing speed and flexibility to ensure timely and precise activation of safety measures.
Innovation Solution
A control unit with a compute module comprising a permanently wired processing structure and a programmable processing structure, allowing for flexible processing instructions and rapid decision-making, enabling efficient activation of personal protection devices like airbags, with a communication interface for sensor data processing and a clock generator for precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a control unit uses a purely programmable processing structure to handle varying sensor data and processing instructions, then flexibility and adaptability are improved, but processing speed deteriorates due to the overhead of interpreting program instructions
Solution Approach 1:
The control unit is segmented into two distinct processing structures: a permanently wired processing structure for executing fixed, time-critical processing instructions at high speed, and a programmable processing structure for handling varying sensor data and adaptable processing logic. This segmentation allows each structure to optimize for its specific function, resolving the contradiction between speed and flexibility.
Solution Approach 2:
Different parts of the control unit are assigned different processing qualities: the permanently wired structure provides deterministic, high-speed processing for critical functions, while the programmable structure provides flexible, adaptable processing for varying conditions. This local differentiation of processing quality allows the system to achieve both high speed and flexibility simultaneously.
2Speed
If a control unit uses a permanently wired processing structure to ensure high processing speed, then processing speed is improved, but adaptability deteriorates because the processing instructions cannot be changed
Solution Approach 1:
The control unit merges a permanently wired processing structure and a programmable processing structure into a single integrated system. The wired structure handles fixed processing instructions at high speed, while the programmable structure provides adaptability for varying sensor data and processing requirements. This combination allows the system to achieve both high processing speed and flexibility.
Solution Approach 2:
The control unit achieves multi-functionality by combining two processing structures that serve different purposes: the permanently wired structure provides universal, deterministic processing for critical functions, while the programmable structure provides adaptable processing for various sensor types and processing instructions. This universality allows the single control unit to handle multiple vehicle types and sensor configurations.
3Ease of manufacture
If control units are manufactured with fixed processing instructions to simplify production, then ease of manufacture is improved, but adaptability deteriorates because existing control units cannot be reconfigured for different vehicle types
Solution Approach 1:
The control unit incorporates dynamic reconfigurability through the programmable processing structure, which can be configured with different processing instructions after manufacturing. This allows the same hardware platform to be adapted for different vehicle types and sensor configurations without requiring complex manufacturing processes, thus maintaining ease of manufacture while achieving high adaptability.
Data Source
AI summary
A control unit for activating a personal protection device of a vehicle. The control unit includes a compute module, which is in one-piece and which includes a first area including a permanently wired processing structure and a second area including a programmable processing structure, the compute module being designed to carry out a processing instruction for activating the personal protection device in at least the second area.