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Energy feedback method and system of vehicle and vehicle

A technology of energy feedback and braking energy feedback, which is applied to vehicle components, electric braking systems, electric vehicles, etc., can solve the problems of low energy feedback efficiency and inaccurate motor calculation, so as to improve energy feedback efficiency and reduce energy consumption. Consumption, reduce the effect of pollution discharge

Inactive Publication Date: 2017-10-27
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can reduce vehicle energy consumption, but in the related art, the energy feedback efficiency is not high due to the inaccurate calculation of the feedback torque of the motor

Method used

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  • Energy feedback method and system of vehicle and vehicle
  • Energy feedback method and system of vehicle and vehicle
  • Energy feedback method and system of vehicle and vehicle

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] The energy feedback method, system and vehicle of the vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] Wherein, the vehicle in the embodiment of the present invention includes a power battery and a motor, that is, the vehicle is a pure electric vehicle or a hybrid vehicle. If it is a hybrid vehicle, such as figure 1 As shown, it is a power system of a form of hybrid electric vehicle, and the power system includes engine 1, ISG motor 2, ISG ...

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Abstract

The invention discloses an energy feedback method and system of a vehicle and the vehicle. The method comprises the following steps of judging whether a vehicle meets an energy feedback condition or not; if yes, obtaining a constant feedback force moment according to a rotating speed of a motor, wherein the constant feedback force moment is a constant power feedback force moment or a constant torque feedback force moment; obtaining a maximum electrical braking force moment corresponding to a maximum braking acceleration limiting value, and a maximum charging force moment corresponding to a maximum charging power of a power battery; determining a maximum energy feedback force moment according to the constant feedback force moment, the maximum electrical braking force moment and the maximum charging force moment; and obtaining the final energy feedback force moment according to an energy feedback coefficient and the maximum energy feedback force moment, and controlling the motor to perform feedback braking according to the final energy feedback force moment. Through the energy feedback method of the vehicle disclosed by the embodiment of the invention, energy feedback efficiency can be improved, further energy consumption is reduced, and pollutant discharge is reduced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an energy feedback device, system and vehicle of a vehicle. Background technique [0002] At present, in order to reduce energy consumption of pure electric vehicles or hybrid vehicles, when the vehicle brakes, it usually uses a motor (such as a drive motor) for regenerative braking, that is, the motor converts energy into electrical energy and stores it in the power supply while braking. battery. This way can reduce the energy consumption of the vehicle. However, in the related art, the energy feedback efficiency is not high due to the inaccurate calculation of the feedback torque of the motor. Contents of the invention [0003] The present invention aims at solving one of the technical problems in the related art mentioned above at least to a certain extent. [0004] Therefore, an object of the present invention is to provide an energy feedback method for a vehicle. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L15/28
CPCB60L7/10B60L15/2009B60L15/28B60L2240/423B60L2260/44Y02T10/72
Inventor 卢素芬
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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