Engine Shutdown Control for Prolonged Start and Low RPM
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dual-motor hybrid systems face issues with excessively long starting times and low engine revolution speeds, leading to potential damage of hardware components like the starting motor and dual-mass flywheel, and compromising system safety and reliability.
Innovation Solution
A method and device for controlling engine shutdown, which acquires current state and operation parameter information of the engine, including revolution speed, start duration, coolant temperature, and torque. The engine is shut down if the acquired information meets specific preset stop conditions corresponding to different engine states, thereby preventing prolonged starting times and low revolution speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the engine starting time is excessively long, then the engine may fail to reach operating speed, but this causes continuous flameout and switching starting which leads to damages of equipment
Solution Approach 1:
The control device continuously monitors engine operating parameters including starting time, revolution speed, and flameout detection. When the engine is in a starting state and the starting time exceeds a preset threshold, the control device automatically terminates the starting process and switches to a shutdown state, preventing continuous flameout and equipment damage through real-time feedback control
Solution Approach 2:
The system changes the engine operating state parameter from starting state to shutdown state when the starting time exceeds the preset threshold. This parameter change prevents the engine from continuing to operate in an abnormal low-speed starting condition that would cause equipment damage
2Speed
If the engine revolution speed is always below a set threshold, then the vehicle remains in starting state, but this causes continuous flameout and switching starting
Solution Approach 1:
The control device monitors engine revolution speed continuously during the starting process. When the engine revolution speed remains below the set threshold for a predetermined time, the control device automatically terminates the starting process and switches to shutdown state, preventing continuous flameout and switching starting through real-time speed feedback control
Data Source
AI summary
A method and a device for controlling an engine to shut down, and an electronic device and a storage medium are provided. The method includes: obtaining current state information and operating parameter information of an engine, the current state information comprising a starting state, and the operating parameter information comprising rotating speed information, starting duration information, cooling liquid temperature information and torque information of the engine; and if the current state information is the starting state, and the rotating speed information, the starting duration information, the cooling liquid temperature information, and the torque information satisfy a first preset shutdown condition corresponding to the starting state, controlling the engine to be in a shutdown state.