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Fuel cell automobile energy-saving driving method and system based on convex optimization

A technology of fuel cell and convex optimization, applied in battery/fuel cell control devices, electric vehicles, power management, etc., can solve problems such as poor energy saving effect and poor path planning, and achieve good vehicle speed planning and energy saving effect.

Pending Publication Date: 2022-05-13
湖南精准信息科技有限公司
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Problems solved by technology

[0004] The present invention provides a fuel cell vehicle energy-saving driving method and system based on convex optimization, thereby solving the technical problems of poor path planning and poor energy-saving effect of existing fuel cell vehicles

Method used

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  • Fuel cell automobile energy-saving driving method and system based on convex optimization
  • Fuel cell automobile energy-saving driving method and system based on convex optimization
  • Fuel cell automobile energy-saving driving method and system based on convex optimization

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Embodiment Construction

[0066] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation cases. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0067] like figure 1 As shown, a fuel cell vehicle energy-saving driving method based on convex optimization of the present invention, such as figure 1 shown, including:

[0068] Step 1. Obtain the hydrogen consumption of fuel cell vehicles running at different speeds at a constant speed and draw a static hydrogen consumption map.

[0069] The structure of the power system of the fuel cell vehicle in the embodiment of the present invention is ...

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Abstract

The invention discloses a fuel cell vehicle energy-saving driving method and system based on convex optimization. The method comprises the steps that hydrogen consumption of a fuel cell vehicle running at a constant speed at different speeds is obtained, and a static hydrogen consumption diagram is drawn; acquiring traffic information of a driving route of the fuel cell vehicle; according to the static hydrogen consumption diagram and the traffic information, determining an optimal green light window for driving of the fuel cell vehicle, and determining a search area of an optimal driving path according to the optimal green light window; taking the minimum total demand power of the fuel cell vehicle as an optimization target, establishing a convex programming model in combination with the search area, and determining an optimal driving path and an optimal vehicle speed track of the fuel cell vehicle according to the convex programming model; and determining the output power of each power source of the fuel cell vehicle by adopting an energy management method based on an alternating direction multiplier method according to the optimal vehicle speed track. According to the method, vehicle speed planning of multiple signal lamps can be rapidly completed, and the energy-saving effect is good.

Description

technical field [0001] The invention belongs to the technical field of vehicle speed planning for fuel cell vehicles, and in particular relates to a fuel cell vehicle energy-saving driving method and system based on convex optimization. Background technique [0002] As one of the possible ultimate solutions for future vehicle power, fuel cell vehicles have natural advantages that electric vehicles cannot match, such as zero emissions, high energy efficiency, and long mileage. At the same time, under the background of the rapid development of intelligent and networked technologies, automobiles have the functions of information interaction between people, vehicles, roads, and clouds. Based on the characteristics of the vehicle's power system, energy-saving driving that integrates traffic information can be realized, which can greatly improve the energy efficiency of the vehicle. Energy-saving driving technology is to reduce the actual energy demand during the driving process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/30B60L58/31B60L15/20
CPCB60L58/30B60L58/31B60L15/20Y02T10/72Y02T90/40
Inventor 魏小栋卢程王俊杰何杰
Owner 湖南精准信息科技有限公司
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