Portable Jump Starter Load Detection for Safe Vehicle Ignition
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Solution Overview
Problem
Existing vehicles often face challenges in starting when the battery is depleted, leading to reliance on roadside assistance, which is time-consuming and costly.
Innovation Solution
A portable standby starting device comprising a battery circuit, a load access detecting circuit, and a vehicle starting circuit, which detects the vehicle load connection state and controls the output of a starting current for ignition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a portable standby starting device is used to enable vehicle ignition when battery is depleted, then the convenience and reliability of vehicle starting is improved, but the device complexity increases due to multiple circuits (battery circuit, load access detecting circuit, vehicle starting circuit)
Solution Approach 1:
The portable standby starting device is divided into three independent functional modules: battery circuit, load access detecting circuit, and vehicle starting circuit. Each module performs a specific function and can be independently designed, tested, and maintained. The segmentation allows the complex device to be managed through modular components, where the battery circuit manages power supply, the load access detecting circuit monitors connection status, and the vehicle starting circuit executes the starting operation.
Solution Approach 2:
The load access detecting circuit serves as an intermediary between the battery circuit and the vehicle starting circuit. It detects the vehicle load connection state and generates control signals that mediate the interaction between power supply and starting operations. This intermediary function ensures safe operation by preventing starting current output when the vehicle load is not properly connected, thus resolving the technical contradiction between reliability and complexity.
2Reliability
If load access detecting circuit is added to detect vehicle load connection state and control starting current output, then the safety of ignition operation is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The load access detecting circuit performs preliminary detection of the vehicle load connection state before the vehicle starting circuit outputs starting current. By detecting the connection status in advance and generating control signals beforehand, the system ensures that starting operations only occur when proper connections are established. This preliminary action prevents unsafe ignition operations and reduces the need for complex post-detection control mechanisms.
Solution Approach 2:
The load access detecting circuit establishes a feedback control mechanism where the detection of vehicle load connection state directly influences the control signals sent to the vehicle starting circuit. When the vehicle load is detected as connected, the circuit generates control signals permitting starting current output; when disconnected, it generates control signals prohibiting output. This feedback loop simplifies the overall control logic while enhancing safety.
Data Source
AI summary
A portable standby starting device for a vehicle includes a battery circuit, a load access detecting circuit, and a vehicle starting circuit. The battery circuit is coupled to the load access detecting circuit and the vehicle starting circuit, and is configured to supply power to the load access detecting circuit and the vehicle starting circuit; the load access detecting circuit is coupled to the vehicle starting circuit, and is configured to detect whether the vehicle starting circuit is connected to a vehicle load; the vehicle starting circuit is configured to, when the load access detecting circuit detects the connection of the vehicle load, output a vehicle starting current for controlling an ignition operation performed for the vehicle.