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Layered fuel cell vehicle energy-saving driving method

A technology of fuel cell and driving method, which is applied in electric vehicles, battery/fuel cell control devices, vehicle energy storage, etc., and can solve the problems of energy-saving driving and unmanned involvement

Active Publication Date: 2021-07-09
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the energy-saving driving of fuel cell vehicles based on signal light information has not yet been covered.

Method used

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  • Layered fuel cell vehicle energy-saving driving method
  • Layered fuel cell vehicle energy-saving driving method
  • Layered fuel cell vehicle energy-saving driving method

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0043] like figure 1 As shown, a hierarchical fuel cell vehicle energy-saving driving method, comprising the following steps:

[0044]1. Establish the road model where the vehicle is about to travel

[0045] Based on the Internet of Vehicles and other technical means to obtain road information of the entire road section, such as the speed limit of each road section, road slope, signal light position, and signal timing, etc., to establish a road model;

[0046] (1) Get road information

[0047] The road information of the entire road section is obtained based on technical means such as the Internet of Vehicles. Specifically, the road model used for global vehicle speed planning includes the following information:

[0048] (a) the total length of the t...

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Abstract

The invention discloses a layered fuel cell vehicle energy-saving driving method, which comprises the following steps of: in upper-layer calculation, acquiring road information of all road sections, such as speed limit conditions, road slopes, signal lamp positions and signal timing of each road section, constructing a fuel cell vehicle longitudinal dynamic model and a cost function including vehicle demand power and driving time, and then obtaining an optimal driving track of the vehicle under global vehicle speed planning by using an optimization algorithm; in the lower layer calculation, establishing a fuel cell system model, a motor system model and a power cell system model according to a power structure of the fuel cell automobile; performing convex conversion processing on the model, and establishing a vehicle dynamics model meeting a convex optimization algorithm standard normal form; inputting the optimal vehicle speed track calculated by the upper layer as a vehicle driving working condition, and solving the whole vehicle energy management problem; and obtaining the vehicle speed track, the SOC track of the power battery and the output power track of the fuel battery of the whole road section according to the calculation result.

Description

technical field [0001] The invention relates to the technical field of vehicle speed planning and energy management of a fuel cell vehicle, in particular to a method for energy-saving driving of a stratified fuel cell vehicle. Background technique [0002] In recent years, with the development of new technologies in the field of electronic information, new technologies such as the Internet of Things, cloud computing, and big data are penetrating into traditional industries. In the automotive industry, connected and automated vehicles have gradually become a research hotspot and are causing tremendous changes in the industry. The networking of automobiles can allow vehicles to better perceive traffic information, such as road speed limits, traffic signal information, etc., and improve driving safety and convenience. The automation of the vehicle can improve the computing power of the on-board computer, better combine traffic information and vehicle dynamics to realize vehicl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/40G06F30/15G06F30/20
CPCB60L58/40G06F30/15G06F30/20G06F2119/14Y02T10/70
Inventor 魏小栋孙超孙逢春任强周飞鲲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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