Vehicle Brake Motor Mounting Offset Center of Gravity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle brake hydraulic pressure controller installations often result in motor vibration and noise due to the displacement of the motor's center of gravity from the rotation shaft's center, leading to imbalance and associated issues.
Innovation Solution
The electric motor is secured to the base using two support points, with the straight line connecting these points offset towards the motor's center of gravity, ensuring the motor is balanced and reducing vibration and noise by positioning the center of gravity within a triangular area enclosed by the rotation shaft and support points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If two support points are disposed symmetrically with respect to the center of the rotation shaft, then the motor installation structure is simple and easy to manufacture, but the center of gravity of the motor is displaced from the straight line connecting the support points causing vibration and noise
Solution Approach 1:
The patent applies asymmetry by positioning the two support points such that the straight line connecting them is offset from the center of the rotation shaft toward the center of gravity of the motor. This asymmetric arrangement ensures that the center of gravity lies on the line connecting the support points, thereby eliminating vibration and noise caused by gravitational imbalance, while maintaining manufacturing simplicity.
2Object-affected harmful factors
If the center of gravity of the motor is located inside the triangular area enclosed by the center of the rotation shaft and the first and second support points, then vibration and noise are suppressed, but the positioning precision of support points becomes more critical
Solution Approach 1:
The patent specifies that the center of gravity should be located inside the triangular area enclosed by the center of the rotation shaft and the two support points. This is a partial constraint that provides a tolerance zone rather than requiring exact positioning on a single line, thereby suppressing vibration and noise while reducing the criticality of positioning precision in manufacturing.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vehicle brake hydraulic pressure controller (U), includes: a first motor support point (Y); and a second motor support point (Y), wherein the first and second support points (Y,Y) secure a motor (200) to a base (100), a center of gravity (G) of the motor (200) being eccentric from a center (X) of a rotation shaft of the motor (200); and the first and second support points (Y,Y) are disposed so that a straight line (L) connecting the first and second support points (Y,Y) for supporting the motor (200) is offset from the center (X) of the rotation shaft toward the center of gravity (G) of the motor (200).