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Traction force control method, device and equipment of electric vehicle, and electric vehicle

A technology of traction control and electric vehicles, which is applied in the field of automobiles, can solve problems that cannot be directly adopted, and achieve the effect of ensuring safety

Pending Publication Date: 2021-10-29
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a traction control method, device and electric vehicle for an electric vehicle, which are suitable for in-wheel motor-driven electric vehicles, and solve the problem of the reference target of the traditional vehicle traction control method and the distribution of the in-wheel drive type. Different from the traditional electric vehicles, the problem that it cannot be directly adopted on the wheel-hub-driven distributed electric vehicles

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  • Traction force control method, device and equipment of electric vehicle, and electric vehicle
  • Traction force control method, device and equipment of electric vehicle, and electric vehicle
  • Traction force control method, device and equipment of electric vehicle, and electric vehicle

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Embodiment Construction

[0043] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0044] Such as figure 1 Among them, the present invention provides a schematic structural diagram of an electric vehicle, each wheel of the electric vehicle is respectively provided with an in-wheel motor. The electric vehicle can specifically include a first hub motor with brake assembly 11 arranged in the left front wheel hub of the electric vehicle; a second hub motor with brake assembly 12 arranged in the right front wheel hub; a second hub...

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Abstract

The invention discloses a traction force control method, device and equipment of an electric vehicle, and the electric vehicle, each wheel of the electric vehicle is provided with a hub motor, and the control method comprises the steps that under the condition that it is determined that single-wheel traction force control is conducted on a target wheel, the braking torque of the target wheel is obtained; and according to the braking torque, the slip rate of the target wheel is controlled to be within a preset slip rate range by adjusting the wheel cylinder pressure of the target wheel and the driving torque output by a hub motor of the target wheel. The method can be suitable for the hub motor driving type electric vehicle, and traction force control over the hub motor driving type electric vehicle is achieved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a traction force control method, device and equipment of an electric vehicle and the electric vehicle. Background technique [0002] As one of the main control systems of electric vehicles, the traction control system's key task is to effectively prevent excessive slippage when the wheels are driven on slippery roads, so as to obtain good acceleration performance. [0003] At present, in-wheel motor-driven distributed pure electric vehicles are directly driven by in-wheel motors without a reduction mechanism, eliminating the need for traditional transmission shafts and other components, and improving the efficiency of the transmission system. It is an ideal driving method for electric vehicles. There are no mass-produced models of hub-driven distributed pure electric vehicles currently on the market, and they are still in the research and development stage. [0004] Since th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20B60L2220/44B60L2240/423B60L2240/465Y02T10/72
Inventor 刘杰李波李国红沈海燕马涛
Owner BEIJING ELECTRIC VEHICLE
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