METHOD FOR OPTIMIZING THE OPERATION OF A VEHICLE ENGINE IN ORDER TO OBTAIN A VACUUM THAT PROVIDES EMERGENCY BRAKING

摘要

Method for optimizing the operation of a petrol engine (2) of a motor vehicle that makes it possible to obtain a sufficient vacuum in this engine (4) which vacuum is applied to a brake boosting system (12) at low rotational speeds of the engine so that emergency braking can be obtained, characterized in that, once a critical vacuum threshold has been detected in the booster (12), the method applies an action to optimize the operation of the engine by influencing one or more adjustable factors that make it possible to generate a greater vacuum, for a time that is regulated by a time period calibrated according to a vacuum recovery duration.