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Intelligent energy management method for autonomous platoon driving of parallel type hybrid electric vehicles

A hybrid vehicle and intelligent management technology, applied in the field of vehicle fleet driving energy consumption management, to achieve the effect of reducing fuel consumption

Active Publication Date: 2020-01-10
CHONGQING UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, in the prior art, there is still a lot of room for development in terms of energy saving for hybrid electric vehicles in the longitudinal control technology of intelligent vehicles, and it is necessary to propose some technologies to improve the efficiency of platoon driving

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  • Intelligent energy management method for autonomous platoon driving of parallel type hybrid electric vehicles
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  • Intelligent energy management method for autonomous platoon driving of parallel type hybrid electric vehicles

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Embodiment Construction

[0070] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0071] combine Figure 13 It can be seen that a parallel hybrid electric vehicle autonomous platoon driving energy intelligent management method is characterized in that it is specifically carried out in accordance with the following steps:

[0072] S1: Establish a parallel hybrid vehicle fleet, determine the model of the parallel hybrid vehicle in the fleet, and obtain the motion system parameters of the parallel hybrid vehicle;

[0073] In this embodiment, the fleet includes a lead car and 2 follower cars.

[0074] In step S1, the motion system parameters at least include: windward area, curb weight, full load weight, rolling resistance coefficient, drag coefficient, wheel radius, final reduction ratio, engine performance parameters, motor performance parameters, power battery parameters, transmis...

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Abstract

The invention discloses an intelligent energy management method for autonomous platoon driving of parallel type hybrid electric vehicles. The method comprises the following steps that a vehicle platoon is established, and the models of the parallel type hybrid electric vehicles in the vehicle platoon and the motion system parameters of the whole vehicles are determined; the working mode of the parallel type hybrid electric vehicles is analyzed to obtain all the driving working modes of the parallel hybrid electric vehicles; according to the vehicle dynamics theory, the dynamic equation of thetransmission system of the whole vehicles is established, and the system efficiency calculation formula under different driving working modes is obtained; the energy management strategy model under the optimal system efficiency condition is established; the headstock distance and the driving vehicle speed requirements of the vehicle platoon are set, and the longitudinal dynamics model of the parallel type hybrid electric vehicle platoon is established; and based on a simulation platform, simulation analysis is carried out. The method has the beneficial effects that the purposes of improving the running safety and the passing efficiency and the fuel economy of the vehicle platoon are effectively improved.

Description

technical field [0001] The invention relates to the technical field of management of vehicle fleet energy consumption, in particular to an intelligent energy management method for autonomous platoon driving of parallel hybrid electric vehicles. Background technique [0002] As an important part of the advanced driver assistance system, autonomous platooning of automobiles controls the acceleration and deceleration of automobiles according to a preset safe distance, effectively improving the safety and traffic rate of automobiles during driving, and hybrid electric vehicles are the current technology The best solution to achieve "energy saving and emission reduction" at a lower level. With the rapid progress of the "new four modernizations" of automobiles, the combination of hybrid technology and intelligent assisted driving technology will also be promoted, and the goals of low fuel consumption, low emissions, safety, and intelligence will eventually be achieved. [0003] I...

Claims

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Application Information

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IPC IPC(8): B60W20/11
CPCB60W20/11Y02T10/62
Inventor 叶心霍志伟魏劲鹏贺俊
Owner CHONGQING UNIV OF TECH
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