Throttle Lever Sensor Cover for Waterproof Angle Detection
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Solution Overview
Problem
Existing throttle operating devices for vehicles require a separate accommodation box and angle sensor, increasing the number of parts and complicating waterproofing, which can lead to reliability issues.
Innovation Solution
A throttle operating device with a cover member that accommodates the detection sensor, reducing the number of parts and simplifying waterproofing by integrating the sensor within a molded cover that seals the fixing member, using a magnet to detect rotational angles and a resistance force applying unit to enhance operational feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate accommodation box is used to fix the detection sensor and substrate, then the sensor can be protected and positioned, but the number of parts increases and waterproofing becomes more complex
Solution Approach 1:
The patent merges the accommodation box, detection sensor, and substrate into a single integrated cover member. The cover member is molded to directly hold the detection sensor in its working position, eliminating the need for separate accommodation boxes and reducing the total number of parts while maintaining waterproofing functionality.
Solution Approach 2:
The cover member serves multiple functions simultaneously: it acts as a protective cover for the fixing member, provides waterproofing, accommodates and positions the detection sensor, and serves as a mounting structure. This multi-functionality reduces the number of separate components needed in the system.
2Measurement precision
If the detection sensor is exposed or loosely mounted, then the structure is simpler, but the sensor cannot be accurately positioned for detecting rotational operation angles
Solution Approach 1:
The cover member is molded to directly form the sensor mounting structure, combining the positioning function with the protective cover. This integration ensures the detection sensor is held at the precise position needed for accurate rotational angle detection without requiring complex separate mounting mechanisms.
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 solution allows for accurate detection of rotational angles while reducing the number of parts, improving waterproofing and operational feel by using a cover member to house the detection sensor and applying resistance through a sliding friction mechanism, thus enhancing the overall reliability and simplicity of the device.
Implementation Method 1
a detection sensor configured to detect a rotational operation angle of the throttle lever
Implementation Method 2
a resistance force applying unit configured to apply a resistance force during a rotational operation of the throttle lever
Data Source
AI summary
A throttle operating device includes: a fixing member which is fixed to a vicinity of a grip formed at a tip of a handlebar of a vehicle; a throttle lever which is attached by extending from the fixing member and configured to be pivoted while the grip is gripped; and a detection sensor configured to detect a rotational operation angle of the throttle lever. A drive source of a vehicle is controlled based on the rotational operation angle of the throttle lever detected by the detection sensor, and a cover member is provided to cover an opening of the fixing member, and the cover member is formed with an accommodation portion capable of accommodating the detection sensor at a predetermined position.