Conductive Vehicle Lubricant for Static Charge Discharge Stability
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Solution Overview
Problem
Existing solutions for improving control stability in vehicles often conflict with ride comfort, with methods affecting aerodynamics, weight, and drainage performance, and there is a lack of effective lubricants that directly address control stability in sliding portions like axle shaft rolling bearings.
Innovation Solution
A lubricant comprising a base oil and an additive containing carbon black, potentially with polytetrafluoroethylene, applied to sliding portions such as axle shaft rolling bearings, which helps remove positive electric charges on vehicle surfaces and tires, enhancing control stability through electrostatic repulsion reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lubricants without conductive materials are used, then the lubricant maintains good lubrication properties, but the control stability of the vehicle is insufficient due to accumulated static electricity
Solution Approach 1:
The patent converts the harmful static electricity accumulation into a beneficial effect by adding conductive materials (carbon black or metal powder) to the lubricant. These materials enable controlled discharge of static electricity from the vehicle body through sliding portions, transforming the previously harmful electrostatic charge into a useful discharge mechanism that improves control stability without compromising lubrication performance
2Reliability
If carbon black or metal powder is added to the lubricant to improve control stability, then static electricity is discharged effectively, but the lubricant may experience increased wear or reduced lubrication efficiency
Solution Approach 1:
The patent carefully controls the concentration of conductive materials (carbon black or metal powder) within specific ranges (0.1-10 wt% or 0.01-5 wt%) to optimize both static electricity discharge capability and lubrication performance. This parameter optimization ensures that the lubricant maintains adequate viscosity and film strength while providing sufficient conductivity for charge discharge
Solution Approach 2:
The patent creates a composite lubricant system by combining base oil (mineral oil, synthetic oil, or vegetable oil) with conductive materials (carbon black or metal powder such as aluminum, copper, or iron). This composite structure integrates the lubricating properties of the base oil with the conductive properties of the added materials, achieving both functions simultaneously without significant compromise to either performance
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 lubricant significantly improves control stability by quantitatively measuring and reducing surface potentials, leading to better steering responsiveness and vehicle yaw angle acceleration, thus enhancing overall driving performance without compromising ride comfort or aerodynamics.
Implementation Method 1
a lubricant for improving control stability of an automobile, comprising a base oil and an additive containing a carbon black
Data Source
AI summary
A lubricant that enables to improve control stability of an automobile or the like having a vehicle body charged by driving. A lubricant for improving control stability of an automobile includes a base oil and an additive containing a carbon black. A kit for improving control stability of an automobile includes a discharging member including a protrusion that performs a self-discharging by air-ionizing and the lubricant. A method also improves control stability of an automobile.