Coordinated control method for energy saving and emission reduction of intelligent driving vehicles

Abstract

The invention provides a coordinated control method for energy saving and emission reduction of intelligent driving vehicles. The method first collects the distance and relative speed signals ahead, and obtains road information of future road sections through the collection of high-precision map information, and comprehensively utilizes the above information to save energy. The goal is to plan the speed of the intelligent cruise driving vehicle, realize the control of the driving torque of the vehicle, and aim at reducing emissions, and use the power demand torque under the energy-saving goal to adjust the throttle opening, EGR opening and ignition advance angle. Control to achieve the minimum emission effect of nitrogen oxides, and finally realize the coordinated control of predictive energy saving and emission reduction of vehicles under intelligent driving. The invention integrates the traditional energy-saving and emission-reduction technology of the automobile industry and the multi-source information brought by intelligence, and reasonably matches the relationship between the vehicle's power transmission system, vehicle motion and road conditions, while satisfying adaptive cruise driving To achieve the purpose of energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of automobile energy-saving and emission-reduction control, and in particular relates to a coordinated control method for energy-saving and emission-reduction of intelligent driving automobiles. Background technique [0002] According to statistics, oil consumption accounted for 34.2% of the world's total energy consumption in 2017, among which transportation accounted for more than half of oil consumption. As a big oil importing country, my country has densely populated cities, and the problems of urban energy consumption and pollution are prominent. Vehicles in transportation not only consume a large amount of oil resources, but also carbon dioxide, nitrogen oxides and particulate matter in vehicle exhaust also seriously affect urban air quality. How to effectively improve energy utilization, reduce energy consumption, and reduce exhaust emissions is an important issue for countries and industries great c...

AI Technical Summary

Problems solved by technology

[0005] In the existing technology, there are many deficiencies in the control of energy saving and emission reduction. First, researchers generally only control from the level of energy saving or emission reduction, but lack the coordinated control of vehicle energy consumption and emission optimization; second: The car engine or transmission system is often closed as a system to be studied, and the research object is often its internal mechanism composition, and the research is rarely carried out from the cooperative control of the whole vehicle in the driving state, and the research process also excludes the driver. With human intervention, it is also difficult for intelligent driving vehicles to achieve the task of coordinated control of vehicle energy consumption and emissions while completing vehicle speed curve planning; third: for an ideal speed planning curve, real-time energy-saving and emission-reduction It is a one-sided improved control model that cannot make full use of road traffic information to predict the next state, and is not suitable for long-term intelligent assisted driving energy-saving and emission-reduction requirements

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