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Anti-rollover comprehensive control method for distributed driving electric automobile

An electric vehicle, integrated control technology, applied in the direction of electric vehicles, control drives, control devices, etc., can solve problems such as yaw stability without consideration

Active Publication Date: 2021-01-05
SHANGHAI UNIV OF ENG SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above two documents only study the roll stability and anti-rollover control, without considering the yaw stability

Method used

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  • Anti-rollover comprehensive control method for distributed driving electric automobile
  • Anti-rollover comprehensive control method for distributed driving electric automobile
  • Anti-rollover comprehensive control method for distributed driving electric automobile

Examples

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Embodiment Construction

[0116] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0117] All symbols with a dot above in the present invention represent the first derivative of a symbol, such as Represents the first derivative of φ, and all symbols with two dots above represent the second derivative of a symbol, such as represents the second derivative of φ.

[0118] All the formulas in the present invention that need to be substituted into units for calculation use standard units for all parameters in pr...

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Abstract

The invention relates to an anti-rollover comprehensive control method for a distributed driving electric vehicle, which is characterized in that four control strategies of yaw stability control, rollstability control, decoupling control and differential brake-based anti-rollover control are used for combined control, and vehicle driving force and braking force are controlled at the same time; therefore, the rollover prevention comprehensive control of the distributed driving electric automobile is realized; for a distributed driving electric automobile, through research on yaw stability androll stability, delta MZ and delta MX are subjected to decoupling control to achieve torque distribution, the influence between yaw moment and roll moment is reduced to the maximum extent, the automobile can keep stable running to the maximum extent, and meanwhile, through distribution of braking moment, the torque distribution effect is improved to the maximum extent; and furthermore through brake torque distribution, anti-rollover control over the automobile is conducted based on differential braking. According to the whole scheme, aiming at the characteristic that four wheels of the distributed driving electric automobile can be independently controlled, driving force and braking force of the four wheels of the distributed driving electric automobile are distributed, and therefore rollover prevention control over the automobile is comprehensively conducted.

Description

technical field [0001] The invention belongs to the technical field of distributed driving electric vehicles, and relates to a comprehensive control method for preventing rollover of distributed driving electric vehicles. Background technique [0002] Since the development of the automobile industry for more than 100 years, while promoting the great development of the social economy, it has also led to the problems of environmental degradation and resource shortage, which have brought some negative impacts on human production activities and life health. Traditional automobiles use chemical fuels such as gasoline or diesel as the supply energy for driving automobiles, which not only consumes the storage of petroleum resources, but also causes the deterioration of air quality due to automobile exhaust emissions. [0003] Distributed drive electric vehicles are different from traditional vehicles in structural form. The unique structural form will affect the roll and rollover p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60T8/24
CPCB60L15/20B60L15/2009B60T8/243B60L2240/423Y02T10/72
Inventor 张缓缓姚鸣杰严帅江忠顺杨博
Owner SHANGHAI UNIV OF ENG SCI
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