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Home › System and method for determining an oil contamination level of an engine based on a switching period of a valve lift actuator to improve engine startups

System and method for determining an oil contamination level of an engine based on a switching period of a valve lift actuator to improve engine startups

US Patent 9863332 · Granted Jan 9, 2018

Estimated economic value: $11,873,000 ⓘ

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