Paddle Shifter Control for Shift Changes During Paddle Malfunction
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Solution Overview
Problem
Conventional vehicle controllers fail to allow shift characteristic changes when one paddle operation is fixed due to malfunction, leading to deactivation of both paddles and inability to alter vehicle shift characteristics.
Innovation Solution
A controller with a pair of operation portions that activates control based on the other operation portion when one remains in an ON state for a predetermined period, allowing shift characteristic changes without additional components or circuits, and includes a notifier for driver notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one paddle operation portion remains in an ON state due to malfunction, then the conventional controller deactivates both paddles to prevent errors, but this prevents the driver from changing shift characteristics
Solution Approach 1:
The controller dynamically switches the function of operation portions based on detected malfunction states. When a paddle is detected to be fixed in an ON state, the controller reassigns the other operation portion to enable shift characteristic changes, transforming the system from a static to dynamic configuration that adapts to malfunction conditions
Solution Approach 2:
The controller changes the functional parameter of the operation portions based on malfunction detection. By detecting that one paddle remains in an ON state for a predetermined period, the controller alters the operational parameters of the remaining functional paddle to maintain shift control capability
2Adaptability or versatility
If additional components or circuits are added to detect malfunction and enable alternative control, then the system can maintain shift control capability, but the device complexity and cost increase
Solution Approach 1:
The controller uses its existing malfunction detection capability to automatically identify when a paddle is fixed in an ON state and autonomously reconfigures the operation of remaining paddles. The system serves itself by using built-in diagnostic functions rather than requiring external detection devices
Solution Approach 2:
The existing malfunction detection mechanism is made multi-functional by using it not only for error detection but also for triggering alternative control modes. The same detection system serves dual purposes: identifying malfunctions and enabling adaptive reconfiguration
Data Source
AI summary
A paddle shifter includes a pair of operation portions that decrease or increase the deceleration, the shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of one operation portion, a shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of the one operation portion, the shift characteristic of the vehicle is set to an automatic shift mode based on a running condition of the vehicle in response to an operation of the other operation portion, and when the one operation portion of the pair of operation portions remains in an ON state for a predetermined period of time, a change in the shift characteristic of the vehicle based on the other operation portion is activated.