Shift Dial Haptic Isolation for Mis-Shift Prevention
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Solution Overview
Problem
Existing electronic shift control systems lack effective measures to prevent mis-operation and minimize vibration and noise transmission, which can lead to damage to the haptic motor and compromise safety.
Innovation Solution
An electronic shift control apparatus that includes a haptic motor with an air gap around it to absorb vibrations and noise, coupled with a shift dial and P-range button, which generates a haptic signal to the driver when shifting into specific ranges, ensuring accurate operation and preventing damage to the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a haptic motor is installed directly to the fixing bracket, then the structure is simple and compact, but vibration and noise are transmitted to other parts causing damage and reliability issues
Solution Approach 1:
The patent introduces an intermediary structure (housing or mounting bracket with damping material) between the haptic motor and the fixing bracket. This intermediary component absorbs and isolates vibrations and noise, preventing them from being transmitted to other parts of the system while maintaining structural integrity and reliability.
2Reliability
If vibration isolation measures are added around the haptic motor, then damage to the motor is prevented, but the device complexity increases
Solution Approach 1:
The patent employs flexible damping materials or thin film isolators around the haptic motor. These flexible components provide effective vibration and noise isolation while maintaining a compact design with minimal added complexity. The flexible materials can conform to the motor housing and provide protection without requiring complex rigid isolation structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents mis-operation by transmitting a haptic signal to the driver, minimizing unnecessary vibration and noise transmission, and preventing damage to the haptic motor, thereby enhancing safety and durability.
Implementation Method 1
an objective of the present disclosure is to provide an electronic shift control apparatus that can prevent mis-operation and improve safety by transmitting a haptic signal to a driver, particularly, that can minimize unnecessary transmission of vibration and noise from a haptic motor that generates a haptic signal to other parts by applying an air gap around the haptic motor
Implementation Method 2
a haptic motor fixed to the fixing bracket, the haptic motor being controlled to operate by the main PCB so as to generate a haptic signal when operating
Data Source
AI summary
An electronic shift control apparatus includes a shift dial that is operated by a driver to select an R-range, an N-range, and a D-range, a P-range motor that is operated to select a P-range, and a haptic motor that generates a haptic signal. When a driver shifts into a specific shift range of a vehicle by operating the shift dial or the P-range button, the haptic signal is configured to be transmitted to the driver.