Throttle Lever Magnetic Shielding for Angle Detection Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing throttle operating devices for vehicles are prone to erroneous detection of the rotational operation angle of the throttle lever due to external magnetism, leading to inaccurate engine control.
Innovation Solution
A throttle operating device with a magnetic shielding unit integrated into the fixing member to cover the magnet and detection sensor, preventing external magnetism interference and ensuring accurate detection of the rotational operation angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detection sensor is used to detect the rotational operation angle of the throttle lever, then the drive source can be controlled based on the detected angle, but external magnetism may cause erroneous detection and reduce accuracy
Solution Approach 1:
A magnetic shielding unit is introduced as an intermediary component between the external environment and the detection sensor/magnet system. This shielding unit blocks external magnetic fields from reaching the magnet and detection sensor, thereby eliminating the harmful effect of external magnetism while preserving the functional magnetic interaction between the magnet and sensor for angle detection
2Device complexity
If the magnet and detection sensor are exposed to the external environment, then the device structure remains simple, but external magnetism interferes with detection accuracy
Solution Approach 1:
The magnetic shielding unit serves as a protective intermediary that can be integrated into the existing device structure with minimal added complexity. The shielding unit is positioned to cover the magnet and detection sensor, creating a magnetically shielded zone that preserves detection functionality while blocking external interference
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 magnetic shielding unit effectively suppresses erroneous detection, allowing for precise control of the vehicle's engine based on the throttle lever's rotational operation angle.
Implementation Method 1
a magnetic shielding unit disposed in the fixing member and configured to cover a periphery of the magnet and the detection sensor to shield magnetism from the outside
Implementation Method 2
a detection sensor configured to detect a rotational operation angle of the throttle lever based on a magnetic change of the magnet rotating in response to the throttle lever
Data Source
AI summary
A throttle operating device includes a fixing member, a throttle lever, the throttle lever, a magnet which is configured to rotate in response to a rotational operation of the throttle lever, and a detection sensor. A drive source of the vehicle is configured to be controlled based on the rotational operation angle of the throttle lever detected by the detection sensor. A magnetic shielding unit is disposed in the fixing member and configured to cover a periphery of the magnet and the detection sensor to shield magnetism from the outside.