Valvoline. has been granted a patent for a lubricant formulation designed for electric and hybrid vehicles. This formulation includes a diisotridecylamine molybdate additive, which alters the lubricant’s color in response to operational conditions, providing indicators of temperature, contact load, and viscosity changes. GlobalData’s report on Valvoline gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Valvoline, was a key innovation area identified from patents. Valvoline's grant share as of July 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Lubricant formulation for electric or hybrid vehicle transmissions
The granted patent US12065623B2 presents a system designed to determine characteristics of a transmission system, particularly in electric or hybrid vehicles. Central to this system is a specially formulated lubricant that includes a base oil, a first gear oil additive, and a second additive comprising diisotridecylamine molybdate. This second additive is crucial as it induces a color change in the lubricant, which serves as an indicator of various operational parameters such as temperature, contact load, viscosity, or operational time, without being influenced by oxidation. The lubricant is engineered to exhibit a color transition from amber at 40°C to blue or green at 125°C, allowing users to assess the lubricant's condition and the transmission component's performance based on a predefined color change chart.
Additionally, the patent outlines methods for utilizing this lubricant to enhance transmission efficiency and performance. The lubricant is reported to improve oxidation induction time by approximately 1.35 times and reduce equilibrium temperature by about 8.5°C compared to conventional automatic transmission fluids. Furthermore, it is designed to increase transmission efficiency by about 3.9%. The method involves directly applying the lubricant to transmission components, operating them under specific conditions, and analyzing the color of the used lubricant against a control chart to determine various characteristics of the transmission system. The formulation and application of this lubricant aim to optimize the performance and longevity of transmission systems in electric and hybrid vehicles.
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