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Control method of pure electric vehicle trailer power generation mode

A pure electric vehicle and control method technology, which is applied in the field of control of the power generation mode of a pure electric vehicle trailer, can solve problems such as the limited role of the energy recovery system, and achieve the effects of saving trailer costs and avoiding rescue failures

Active Publication Date: 2020-09-01
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the energy recovery system can recover energy in theory, if it is impossible to improve the efficiency of the power system, the role that the energy recovery system can play is very limited

Method used

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  • Control method of pure electric vehicle trailer power generation mode

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0019] The purpose of the present invention is to provide a pure electric vehicle trailer power generation mode, a method for temporarily charging the vehicle when the pure electric vehicle is out of power, and improving the cruising range of the pure electric vehicle. The technical scheme that the present invention adopts for realizing this purpose is:

[0020] 1. Cancel creep torque in trailer mode;

[0021] 2. In the trailer mode, when the speed of the towed vehicle gradually increases, the power generation torque also gradually increases, and the trailer torque is limited by the maximum recovery torque and the maximum recovery power of the battery pack;

[0022] 3. The user can choose the maximum recovery torque according to the actual situation to ...

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Abstract

The invention provides a control method of a pure electric vehicle trailer power generation mode, which belongs to the technical field of pure electric vehicle battery pack charging. The method comprises the steps that under the pure electric vehicle trailer advancing mode, a trailer power generation mode is started, trailer power generation torque is generated, and the battery pack is charged through energy recovery of the pure electric vehicle. By means of the method, in the trailer mode, the pure electric vehicle with electric energy exhausted does not need to be dragged to a charging place, and part of electric energy can be obtained by the pure electric vehicle. The trailer cost is saved, and rescue failure caused by the fact that the trailer cannot reach a charging place or the trailer breaks down is avoided.

Description

technical field [0001] The invention relates to the technical field of charging battery packs of pure electric vehicles, in particular to a method for controlling the power generation mode of a trailer of a pure electric vehicle. Background technique [0002] At present, with the improvement of cruising range, pure electric vehicles have gradually been accepted by the market, but the worry about battery life is still the main problem that plagues the further acceptance of pure electric vehicles by users. [0003] When the battery of the pure electric vehicle is exhausted, a traditional vehicle is required for towing rescue, and the energy of the pure electric vehicle in the towing state has not been utilized. The traditional car for rescue must tow the pure electric vehicle to the charging place to complete the rescue work. [0004] Braking energy recovery, for new energy vehicles, means that during the deceleration or braking process, the drive motor works in the power gen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60P3/12B60L53/00F03G7/00
CPCB60P3/12B60L53/00F03G7/00Y02T10/7072Y02T90/14
Inventor 刘伟东游道亮胡松华
Owner JIANGLING MOTORS