Hydrogen Fueling Control Using Initial Tank Parameters
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Solution Overview
Problem
Existing hydrogen filling control strategies face challenges in controlling the temperature of on-board hydrogen storage devices during filling, particularly when communication between vehicles and hydrogen filling stations is difficult due to varying communication standards, which can lead to unsafe temperature rises and potential hydrogen explosions.
Innovation Solution
A hydrogen filling control method and device that acquire initial parameters of the on-board hydrogen storage device, such as volume, pressure, and ambient temperature, to calculate a filling rate and target pressure, allowing for safe temperature control within a preset range without real-time communication with the filling station, using methods like table lookup, formula calculation, or pressure difference calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time communication between vehicle and hydrogen filling station is implemented to control hydrogen temperature, then hydrogen temperature control safety is improved, but communication compatibility and system complexity deteriorate due to varying communication standards
Solution Approach 1:
The patent introduces a pre-stored filling strategy table as an intermediary that mediates between the vehicle's hydrogen storage device parameters and the filling station's control actions. This table contains pre-calculated optimal filling strategies for different initial conditions, allowing the system to determine appropriate filling rates without requiring complex real-time communication or calculation, thus resolving the contradiction between safety and communication complexity
Solution Approach 2:
The patent applies preliminary action by pre-calculating and storing optimal hydrogen filling strategies in a filling strategy table before actual filling operations. The table is prepared in advance with various initial conditions and corresponding optimal filling rates, eliminating the need for complex real-time communication and calculations during actual filling, thereby maintaining safety while reducing communication system complexity
2Manufacturing precision
If real-time communication and dynamic adjustment of filling rate according to temperature feedback is implemented, then hydrogen temperature control precision is improved, but filling efficiency and operation time deteriorate
Solution Approach 1:
The patent pre-calculates optimal filling strategies for various initial conditions (volume, pressure, temperature) and stores them in a filling strategy table. During actual filling, the system only needs to query the table based on initial parameters and execute the pre-determined filling rate, achieving both precise temperature control and high filling efficiency without real-time communication delays
Solution Approach 2:
The patent applies local quality by providing different optimal filling rates for different initial conditions of the hydrogen storage device. Instead of using a single universal filling rate, the system queries the filling strategy table to obtain the specific optimal filling rate corresponding to the current initial parameters, thereby achieving precise temperature control tailored to each specific situation while maintaining efficiency
3Reliability
If communication protocols are standardized to enable real-time monitoring and control, then hydrogen temperature control capability is improved, but system adaptability and ease of deployment worsen due to compatibility requirements
Solution Approach 1:
The patent uses a pre-stored filling strategy table as an intermediary that decouples the control logic from communication requirements. The table contains all necessary control information for different initial conditions, allowing the system to achieve reliable hydrogen temperature control without requiring standardized real-time communication protocols, thereby maintaining adaptability across different vehicles and filling stations
Solution Approach 2:
The system performs self-service by autonomously determining the optimal filling rate through local lookup of the pre-stored filling strategy table based on initial parameters detected by sensors. This eliminates the need for external communication and control coordination, enabling the system to achieve reliable temperature control independently while being adaptable to different communication standards or lack thereof
Data Source
AI summary
A hydrogen fueling control device and method comprising step S100, obtaining initial parameters of a vehicle-mounted hydrogen reservoir, wherein the initial parameters comprise volume, initial hydrogen pressure, and initial ambient temperature of the vehicle-mounted hydrogen reservoir; step S200, computing a fueling rate and a target pressure for hydrogen fueling according to the initial parameters, wherein the computed fueling rate and target pressure cause the temperature of hydrogen during a hydrogen fueling process to be within a preset safe range; and step S300, controlling a hydrogen fueling station to fuel hydrogen to the vehicle-mounted hydrogen reservoir at the computed fueling rate to the computed target pressure. The control method controls a fueling process by obtaining a fueling rate and a target pressure by means of initial parameters of a vehicle-mounted hydrogen reservoir measured by a hydrogen fueling station, without requiring the real-time communication between the hydrogen fueling station and a vehicle.