Battery Pressure Control Loop With Intermediate Computer
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Solution Overview
Problem
Existing battery charging and discharging systems have low efficiency and heavy load, struggling to effectively control charging and discharging processes, particularly due to high communication latency and the need for complex AI/AO modules, which can lead to safety hazards during high-power charging and discharging.
Innovation Solution
A control system integrating a pressure sensor, piezoelectric valve, and controller within a control circuit, communicating directly with an intermediate computer to reduce the load on the upper computer, eliminate the need for a dedicated AI/AO module, and enhance safety through real-time pressure monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the upper computer directly controls the piezoelectric valve based on pressure information, then the system structure is simple, but the upper computer load is heavy and data exchange efficiency is low
Solution Approach 1:
The system divides the control function into two parts: the upper computer handles high-level monitoring and parameter setting, while the intermediate computer handles real-time pressure control. This segmentation reduces the upper computer's load and improves data exchange efficiency for time-critical operations.
Solution Approach 2:
The intermediate computer acts as a mediator between the upper computer and the piezoelectric valve. It receives pressure information from the control circuit, processes it in real-time, and controls the piezoelectric valve accordingly, thereby reducing the upper computer's direct involvement in time-critical control loops.
2Device complexity
If the control circuit integrates pressure sensor, piezoelectric valve, and controller, then space usage and system costs are reduced, but the system requires protection against off-line impacts
Solution Approach 1:
The system implements beforehand cushioning by having the intermediate computer monitor pressure information and prepare control commands in advance. When the upper computer goes offline, the intermediate computer can continue to control the piezoelectric valve based on pre-established pressure thresholds and safety parameters, preventing system failure.
Solution Approach 2:
The control circuit continuously feeds back pressure information to both the intermediate computer and upper computer. This feedback mechanism ensures that the system can detect and respond to off-line conditions, maintaining safety through real-time monitoring and automatic control adjustments.
3Device complexity
If the upper computer directly monitors pressure information, then the control loop is short, but the sampling and response speed is limited by communication latency
Solution Approach 1:
The intermediate computer serves as a local controller that receives pressure information and controls the piezoelectric valve without requiring constant communication with the upper computer. This intermediary approach maintains a short control loop for real-time pressure regulation while reducing communication latency impacts.
Solution Approach 2:
The intermediate computer pre-processes pressure information and prepares control commands based on predetermined pressure thresholds and control algorithms. This preliminary action enables faster response times by avoiding real-time communication delays with the upper computer during critical control moments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly improves data exchange efficiency, reduces hardware costs, enhances safety by preventing off-line impacts, and increases sampling and response speed, allowing for more accurate and convenient pressure control of battery charging and discharging processes.
Implementation Method 1
a piezoelectric valve, and a controller; the pressure sensor is configured to collect pressure information; the controller is configured to receive the pressure information collected by the pressure sensor
Data Source
AI summary
Embodiments of this application relate to the field of power source control technologies, and disclose a control system and a charging and discharging control system. The control system includes a control circuit and an intermediate computer, where the control circuit includes a pressure sensor, a piezoelectric valve, and a controller; the pressure sensor is configured to collect pressure information; the controller is configured to receive the pressure information collected by the pressure sensor and transmit the pressure information to an intermediate computer; the intermediate computer is configured to transmit the pressure information to an upper computer, receive a preset pressure value generated by the upper computer based on the pressure information, and transmit the preset pressure value to the controller; and the controller is further configured to control the piezoelectric valve based on the preset pressure value.