Parking Lock Control Device Steering-Based Activation
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Solution Overview
Problem
Existing parking lock mechanisms in vehicles consume excessive power when activated simultaneously, leading to increased power consumption and potential vehicle movement issues, especially on inclined surfaces.
Innovation Solution
A parking lock control device that activates only one parking lock mechanism when the vehicle is stationary and on a flat surface, switching to both mechanisms if there's a risk of movement, and determines which mechanism to activate based on the steering direction to minimize power consumption and prevent vehicle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple parking lock mechanisms are activated simultaneously, then vehicle stability is improved, but power consumption increases
Solution Approach 1:
The parking lock control device divides the parking lock function into separate left and right mechanisms, activating only the necessary one based on steering direction rather than activating all mechanisms simultaneously. This segmentation allows selective activation to reduce power consumption while maintaining stability.
Solution Approach 2:
Instead of activating all parking lock mechanisms (excessive action), the system activates only the minimum necessary mechanism based on steering direction (partial action). This provides just enough stability for the parking condition while avoiding unnecessary power consumption from redundant activation.
2Use of energy by moving object
If parking lock mechanisms are activated on flat surfaces, then power consumption is reduced, but vehicle movement suppression capability decreases
Solution Approach 1:
The parking lock control device dynamically adjusts the parking lock activation strategy based on real-time conditions (steering direction and road slope). On flat surfaces, it activates only one mechanism to save power, while on inclined surfaces, it activates both mechanisms to ensure adequate movement suppression, making the system adaptive to different operating conditions.
Solution Approach 2:
The system changes the activation parameter (number of parking lock mechanisms activated) based on detected conditions. When the road slope exceeds a threshold, the system transitions from activating one mechanism to activating both mechanisms, thereby adjusting the movement suppression capability according to the actual parking environment.
3Use of energy by moving object
If only one parking lock mechanism is activated, then power consumption is suppressed and travel distance is extended, but vehicle movement may occur on inclined surfaces
Solution Approach 1:
The parking lock control device uses feedback from the road slope detection to determine the appropriate parking lock activation strategy. When the slope is detected to be within a safe range, one mechanism is activated; when the slope exceeds the safe range, both mechanisms are activated. This feedback-based control ensures power efficiency on flat surfaces while preventing vehicle movement on inclined surfaces.
Solution Approach 2:
The system performs preliminary detection of the road slope before activating the parking lock mechanisms. Based on this preliminary information, it pre-determines whether one or both mechanisms should be activated, preventing potential vehicle movement on slopes while avoiding unnecessary power consumption on flat surfaces.
Data Source
AI summary
In a parking lock control device of a vehicle of the present invention, when a parking lock activation compound is outputted, either one of the parking lock mechanisms is activated. When the steering wheel is steered to a right hand side, the left side parking lock mechanism is activated. When the steering wheel is steered to a left hand side, the right side parking lock mechanism is activated. Thus, power consumption is suppressed. In a case where the vehicle moves when only the one parking lock mechanism is activated, the other parking lock mechanism is also activated.