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Turning control method and system for four-wheel independent drive vehicle

A four-wheel independent drive and turning control technology, applied in the field of turning control methods and systems of automobiles, can solve problems such as limited application occasions and no consideration of vehicle stability.

Active Publication Date: 2019-01-11
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, such a system is only suitable for four-wheel steering, the application is still limited, and it does not consider issues such as vehicle stability

Method used

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  • Turning control method and system for four-wheel independent drive vehicle
  • Turning control method and system for four-wheel independent drive vehicle
  • Turning control method and system for four-wheel independent drive vehicle

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Embodiment Construction

[0085] 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 denote 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.

[0086] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0087] In the descr...

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Abstract

The invention discloses a turning control method for a four-wheel independently driven automobile. The turning control method comprises the following steps: acquiring automobile condition information parameters of the automobile; receiving a turning radius reducing requirement which is input by a driver; calculating a control yawing moment meeting the turning radius reducing requirement according to the automobile condition information parameters and the turning radius reducing requirement; distributing the control yawing moment to four wheels of the automobile according to the automobile condition information parameters so that the automobile turns in the situation of meeting the turning radius reducing requirement. The invention also discloses a turning control system for the four-wheel independently driven automobile.

Description

technical field [0001] The invention relates to automobiles, in particular to a turning control method and system for four-wheel independently driven automobiles. Background technique [0002] With the development of modern road traffic system and advanced automobile technology, the active performance technology of automobile has been paid more and more attention. But domestic research on high mobility vehicles is still blank. [0003] There are many factors that affect the mobility of vehicles, including the overall design dimensions of the vehicle, the impact of power drive, the suspension structure of the vehicle, and the steering performance of the vehicle. Especially the steering performance of the car directly determines the maneuverability of the vehicle. [0004] The traditional two-wheel steering vehicle responds slowly when turning at low speeds, and the steering is not flexible, and the direction stability is poor at high speeds. In addition, most of the existi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/045B60W10/08B60W10/119B60W10/20
CPCB60W10/08B60W10/119B60W10/20B60W30/045B60W2710/083B60W2710/202
Inventor 廉玉波凌和平孟繁亮石明川熊焱飞
Owner BYD CO LTD
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