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Steering auxiliary torque control method for pure electric all-wheel-drive automobile with single front motor and double rear motors

A technology of steering assistance and torque control, which is applied to electric vehicles, electric steering mechanisms, power steering mechanisms, etc., can solve the problem that the vehicle is difficult to rotate in situ, and achieve the effect of improving passing performance and off-road escape ability

Active Publication Date: 2022-03-11
JIANGLING MOTORS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem in the prior art that it is difficult for vehicles to rotate in situ, the present invention proposes a steering assist torque control method for a pure electric full-drive vehicle with single front and rear motors

Method used

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  • Steering auxiliary torque control method for pure electric all-wheel-drive automobile with single front motor and double rear motors
  • Steering auxiliary torque control method for pure electric all-wheel-drive automobile with single front motor and double rear motors
  • Steering auxiliary torque control method for pure electric all-wheel-drive automobile with single front motor and double rear motors

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will combine the appended Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] like figure 1 As shown, a method for controlling the steering assist torque of a pure electric full-drive vehicle with a front single rear dual motor of the present invention comprises the following steps:

[0031] S1. Use the steering assist mode switch to determine whether there is a request for turning on the steering assist mode, if not, then end, and if there is...

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Abstract

The invention relates to the field of electric vehicle control, in particular to a steering auxiliary torque control method for a pure electric all-wheel-drive vehicle with a single front motor and double rear motors, which utilizes the characteristic that a front-axle single-motor and double-rear-axle motor electric vehicle can independently control the power output direction and the output torque of a front axle, a rear left wheel and a rear right wheel. And forward torque is applied to the outer front wheel, forward torque is applied to the outer rear wheel, and reverse torque is applied to the inner rear wheel, so that the vehicle can approximately rotate around the center of mass in situ, the turning radius is shortened to be 1 / 2 of that of a crossed shaft, and the passing performance and cross-country escape capability of the vehicle are further improved.

Description

technical field [0001] The invention relates to the field of electric vehicle control, in particular to a steering auxiliary torque control method for a pure electric full-drive vehicle with single front and rear double motors. Background technique [0002] In order to adapt to complex terrain conditions and harsh road conditions, current off-road vehicles generally adopt the driving form of all-wheel drive (four-wheel drive), that is, all wheels can provide power. In order to achieve all-wheel drive, the power generated by the engine of a traditional fuel vehicle is distributed to the four wheels through the power transmission of the clutch mechanism, gearbox, and transfer case. The form of all-wheel drive for electric vehicles is relatively simple. At present, the development trend of all-wheel drive electric vehicles is driven by three motors. Drive with motor three. Compared with fuel vehicles, the power output of the three motors is independent of each other, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/32B60L15/20B62D5/04
CPCB60L15/32B60L15/20B62D5/0463B60L2240/423B60L2260/28Y02T10/72
Inventor 王功博魏广杰游道亮韩雪雯胡会永刘文冰
Owner JIANGLING MOTORS
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