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Method and system for increasing endurance mileage of electric vehicle

A cruising range and electric vehicle technology, applied in the field of electric vehicles, can solve the problems affecting the cruising range of electric vehicles and the inability to drive in an energy-saving state of electric vehicles, so as to achieve the effect of improving energy consumption and increasing cruising range

Active Publication Date: 2019-02-01
NIO CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, since the above-mentioned driver demand torque does not take factors such as driving habits and daily road conditions of different drivers into consideration, the predicted driver demand torque cannot enable the electric vehicle to drive in an optimal energy-saving state, thereby affecting the performance of the electric vehicle. recharge mileage

Method used

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  • Method and system for increasing endurance mileage of electric vehicle
  • Method and system for increasing endurance mileage of electric vehicle
  • Method and system for increasing endurance mileage of electric vehicle

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Embodiment Construction

[0052] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation of the method, device and system for improving the cruising range of electric vehicles proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , method, structure, feature and effect thereof, detailed description is as follows.

[0053] see figure 1 As shown, the present invention provides a method for improving the cruising range of electric vehicles, including:

[0054] Step S11, in the fixed driving mode, collect the daily driving information of the vehicle; the daily driving information can be collected from the cloud database, and storing the daily driving information in the cloud database can realize the daily driving information sharing, improve the data transmission speed, and make the data storage more secure reliabl...

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Abstract

The invention provides a method and system for increasing endurance mileage of an electric vehicle. The method for increasing the endurance mileage of the electric vehicle comprises the steps of collecting daily running information of the vehicle in a fixed driving mode; obtaining actual torque demand values at different times under a condition of same vehicle speed and throttle opening from the daily running information; conducting statistics on mean values of a series of obtained actual torque demand values so as to obtain a statistical value; and using the statistical value as an adjustingbasis to adjust a theoretical demand value corresponding to the vehicle speed and the throttle opening and output by a motor torque in a calibrated pulse spectrum, wherein the adjusted theoretical demand value is closer to the statistical value than the unadjusted theoretical demand value. According to the method and system for increasing the endurance mileage of the electric vehicle, the energy consumption of the electric vehicle per unit mileage is furthest reduced, and the endurance mileage of the electric vehicle is increased.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a method and system for improving the cruising range of electric vehicles. Background technique [0002] The current electric vehicle industry is developing very rapidly, but the cruising range of batteries has always troubled end users. In the control system of electric vehicles, the driver's demand torque is usually predicted according to the accelerator pedal opening and vehicle speed, and then the motor output torque is determined according to the driver's demand torque, vehicle speed and battery state of charge. However, since the above-mentioned driver demand torque does not take factors such as driving habits and daily road conditions of different drivers into consideration, the predicted driver demand torque cannot enable the electric vehicle to drive in an optimal energy-saving state, thereby affecting the performance of the electric vehicle. recha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/00
CPCB60L2240/12B60L2260/42B60W50/00B60W2050/0043
Inventor 申其壮黄晨东何彬
Owner NIO CO LTD
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