Method for optimizing driving path according to energy consumption of pure electric vehicle

A pure electric vehicle, consumption technology, applied in the automotive field, can solve problems such as breakdown, serious deviation in energy consumption rate prediction, calculation, etc., to achieve the effect of avoiding breakdown

CN111516552AActive Publication Date: 2020-08-11DONGFENG MOTOR CORP HUBEI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-08-11

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Abstract

The invention discloses a method for optimizing a driving path according to energy consumption of a pure electric vehicle. The method comprises the following steps: acquiring driving energy consumed by the vehicle on each road section for overcoming driving resistance according to the running speed, the road section length and the road section gradient of the vehicle on each road section; throughdriving range tests in different environments, obtaining hundred-kilometer energy consumption of an air conditioner, hundred-kilometer energy consumption of a low-pressure accessory and hundred-kilometer recovered energy of an energy recovery system, and calculating vehicle energy consumption according to the total mileage of the recommended path; calculating the total energy consumption by addingthe sum of the running energy consumption to the vehicle energy consumption, comparing the energy output by the battery with the total energy consumption, and reasonably planning the driving path. The driving path is reasonably planned by comprehensively considering the energy running consumption of the pure electric vehicle and the energy consumption of the vehicle.
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Description

technical field

[0001] The invention relates to the technical field of automobiles, in particular to a method for optimizing a driving path according to the energy consumption of a pure electric vehicle and an automobile using the method.

[0002] technical background

[0003] The energy consumption rate of electric vehicles is related to many factors, such as ambient temperature, driving habits, road congestion rate, etc. The driving range provided by automobile manufacturers is measured under NEDC (New European Driving Cycle, New European Standard Driving Cycle) As a result, the NEDC operating conditions are quite different from the actual operating conditions, resulting in a discrepancy between the actual mileage and the announced value.

[0004] When driving an electric vehicle to plan a travel route, the driver needs to choose a reasonable driving route according to the energy consumed to reach the destination. If the energy required to reach the destination is greater ...

Examples

Embodiment Construction

[0048] The patent will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the patent, but they do not limit the patent.

[0049] The Ben invention discloses a method for optimizing the driving route according to the energy consumption of a pure electric vehicle, which is characterized in that: the energy consumed by the vehicle on each road segment to overcome the driving resistance is obtained through the running speed of the vehicle on each road segment, the length of the road segment, and the gradient of the road segment Driving energy consumption: Through the mileage test in different environments, the energy consumption per 100 kilometers of the air conditioner, the energy consumption of the low-voltage accessories per 100 kilometers, and the energy recovered by the energy recovery system per 100 kilometers are obtained, and the vehicle energy consumption is calculated according ...