Auto-Stop Start System with Selectable Deactivation Duration
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Solution Overview
Problem
Existing auto-stop start systems for vehicles are ineffective in certain traffic conditions, leading to increased emissions, wear on vehicle components, and driver annoyance due to frequent stop and start cycles.
Innovation Solution
An auto-stop start system that allows the driver to temporarily deactivate the function based on traffic conditions, with automatic reactivation after a selectable duration or distance traveled, thereby optimizing the system's use in varying traffic situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the auto-stop start function is activated to reduce fuel consumption and emissions, then fuel efficiency improves, but the system causes driver annoyance and increased wear on components when traffic conditions are unsuitable
Solution Approach 1:
The system dynamically adjusts the auto-stop start function based on detected traffic patterns. When frequent stopping is detected within a threshold period, the system temporarily disables automatic engine restart, adapting to unsuitable traffic conditions rather than operating rigidly
Solution Approach 2:
The control unit continuously monitors traffic conditions by detecting repeated stopping events and uses this feedback to determine when to disable or enable the auto-stop start function, creating a closed-loop control system that responds to actual operating conditions
2Object-generated harmful factors
If the system automatically stops and starts the engine based on stationary time prediction, then emissions are reduced, but power response is delayed when the driver requests acceleration
Solution Approach 1:
The system predicts when the vehicle will be stationary for extended periods based on current traffic conditions and proactively disables the auto-stop start function before unfavorable conditions occur, preventing power response delays rather than reacting after they happen
3Ease of operation
If the driver manually deactivates the auto-stop start function when inconvenient, then driver control and comfort improve, but the driver may forget to reactivate the function leading to continued inefficiency
Solution Approach 1:
The system automatically reactivates the auto-stop start function after a predetermined period following manual deactivation, eliminating the need for the driver to remember to turn it back on while still maintaining driver control over the system
Data Source
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AI summary
The invention relates to an auto-stop start system (3) for a vehicle (1). The auto-stop start system (3) has a control unit (4) with an auto-stop start function (5) controlling stop and start of an engine (6) of the vehicle (1), and a control device (7) by which control device the auto-stop start function (5) can be temporarily deactivated by an operator of the vehicle. The control unit (4) is configured to reactivate the auto-stop start function (5) after a predetermined duration of a temporary deactivation. The predetermined duration of the temporary deactivation of the auto-stop start function (5) is selectable by means of the control device (7).