A method for optimal control of engine idle speed

Abstract

The invention discloses an idling optimization control method for an engine. An ECU monitors and collects starting states of all accessories of a vehicle, signal data of the engine and signal data of all sensors of the vehicle for forming single signal state confirmation strategy sets, and the single signal state confirmation strategy sets are collected for forming a state summary management matrix; the ECU judges processing conditions according to the state summary management matrix information and the hierarchical group strategy processing method, whether the accumulated time for meeting the processing conditions exceeds the examination time is judged if the processing conditions are met, the engine is switched to the flameout mode from the idling mode and the ECU starts the idling wake-up function with uninterruptible power supply if the accumulated time for meeting the processing conditions does not exceed the examination time, and otherwise, no processing is carried out; the ECU inspects the state of the vehicle constantly and judges the wake-up condition, and the engine is automatically started to enter the idling state if the state meets the wake-up condition. According to the method, the actual idling requirements of the vehicle can be intelligently judged according to the state summary management matrix formed by collecting signals and the hierarchical group strategy processing method, idling is eliminated, the service life of the engine is prolonged, the oil consumption is reduced, and the purposes of energy conservation and environmental protection are realized.

Description

technical field [0001] The invention relates to an engine idle speed control method, in particular to an engine idle speed optimal control method. Background technique [0002] The idling state refers to a working state when the engine is idling. When the engine is running, if the accelerator pedal is fully released, the engine is in an idle state. At this moment, the engine only overcomes its own running resistance or provides part of the accessory work, but does not output power for the vehicle to do work externally. Vehicle end users will use idling speed when driving, shifting gears, traffic jams and other signal lights, and other factors that cause temporary parking. In this way, the inconvenience in operation and the loss of fuel consumption caused by frequent starting and stopping of the engine can be avoided. [0003] Although idling speed can effectively avoid the operational inconvenience caused by frequent engine start and stop when there is a temporary parking...

AI Technical Summary

Problems solved by technology

For example, the vehicle user puts the engine at idle speed and then leaves the vehicle to eat or deal with other things, and the new driver drives the engine to the idle speed state to run-in the car, etc. These situations not only waste fuel, pollute the environment, but also cause early engine damage. Wear and tear, greatly reducing the service life of the engine

Existing idle speed control technology does not take any control and avoidance measures for this situation

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