Idling Stop Control Unit Automatic Prohibition Management
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Solution Overview
Problem
Existing idling stop control systems require manual switch operation to cancel the idling stop prohibiting state, leading to potential forgetfulness and reduced fuel efficiency if not executed properly.
Innovation Solution
An idling stop control unit that automatically cancels the idling stop prohibiting state when specific conditions are met, such as changes in air conditioning settings or predetermined temperature and humidity levels, ensuring the engine restarts during vehicle stops to maintain comfort and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual off switch is provided to prohibit idling stop when air conditioner is operating, then air conditioning comfort is maintained, but the system requires manual operation which may be forgotten leading to reduced fuel efficiency
Solution Approach 1:
The system automatically manages the idling stop prohibiting state without requiring manual user intervention. When the air conditioner is operating, the system automatically prohibits idling stop and automatically cancels the prohibition when the air conditioner stops, making the system serve itself rather than requiring continuous user attention
Solution Approach 2:
The system continuously monitors the air conditioner operation status and automatically adjusts the idling stop prohibition state based on this feedback. When the air conditioner is on, idling stop is prohibited; when it stops, the prohibition is automatically canceled, creating a closed-loop control system
2Adaptability or versatility
If idling stop is automatically canceled when air conditioner switch is operated, then air conditioning comfort is ensured, but device complexity increases
Solution Approach 1:
The idling stop control function is merged with the existing air conditioner control system. The same control unit that manages air conditioner operation also manages the idling stop prohibition state, eliminating the need for a separate manual switch and reducing overall system complexity
Solution Approach 2:
The air conditioner switch serves dual purposes: controlling air conditioner operation and managing the idling stop prohibition state. This multi-functional approach reduces the number of separate controls needed in the system
Data Source
AI summary
An idling stop control unit (ISCU) provided in a vehicle including an air conditioner (S) which controls an air conditioning state of a passenger compartment of the vehicle. The idling stop control unit includes: idling stop prohibiting means for canceling idling stop to restart an engine (10) and prohibiting execution of idling stop when a switch for changing the air conditioning state is operated during idling stop in which the engine (10) is stopped when the vehicle is at a stop; and idling stop enabling means for automatically lifting the prohibition and enabling execution of idling stop when a predetermined condition is met.