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Electric vehicle, energy recovery control system thereof, stability control method and medium

A stable control method and braking energy recovery technology, applied in the field of vehicles, can solve the problems of increasing ESP development man-hours and development costs, and achieve the effect of reducing development man-hours and development costs and improving comfort

Inactive Publication Date: 2021-01-22
宝能(广州)汽车研究院有限公司
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  • Description
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Problems solved by technology

[0004] However, the entire energy recovery strategy in the above scheme is controlled by the ESP, so the development man-hours and development costs of the ESP will be correspondingly increased

Method used

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  • Electric vehicle, energy recovery control system thereof, stability control method and medium
  • Electric vehicle, energy recovery control system thereof, stability control method and medium
  • Electric vehicle, energy recovery control system thereof, stability control method and medium

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Embodiment Construction

[0025] 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 designate 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 and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] Refer to the attached Figure 1-5 The electric vehicle and its energy recovery control system, stability control method and medium according to the embodiments of the present invention are described.

[0027] figure 1 It is a structural block diagram of an energy recovery control system for an electric vehicle according to an embodiment of the present invention. refer to figure 1 As shown, the energy recovery control system 100 of an electric vehicle includes a vehicle controller 101 , a body stability control system ES...

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Abstract

The invention discloses an electric vehicle, an energy recovery control system thereof, a stability control method and a medium. The control system comprises a vehicle control unit, an ESP and a motorcontroller, a sliding energy feedback module, an ESP integrated stability control module and a braking energy feedback module are integrated in the vehicle control unit, the motor controller is integrated with a torque control module, and the stability control module calculates a torque feedback value when determining that instability occurs in the sliding energy recovery process and / or the braking energy recovery process of the electric vehicle according to the vehicle state, and sends the torque feedback value to the motor controller through communication connection between the ESP and themotor controller, so the torque control module only responds to the torque request of the stability control module. The control system can control discomfort caused by intervention of braking energy recovery in the sliding energy recovery process, and therefore the comfort in the energy recovery process is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an energy recovery control system of an electric vehicle, a stability control method during energy recovery of an electric vehicle, a computer-readable storage medium and an electric vehicle. Background technique [0002] In order to improve the battery life of electric vehicles, there have been schemes in which coasting energy recovery and braking energy recovery are applied to electric vehicles at the same time. Normally, coasting energy recovery is controlled by the vehicle controller, and braking energy recovery is controlled by ESP (Electronic Stability Program, body stability control system). However, when the electric vehicle is performing coasting energy recovery, the brake pedal is stepped on, the braking energy recovery intervenes, and the coasting energy recovery exits, resulting in a sudden change in the coasting energy recovery torque, which causes the electric vehi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L15/20
CPCB60L7/10B60L15/20B60L2240/423Y02T10/72Y02T90/16
Inventor 孙明胡耀
Owner 宝能(广州)汽车研究院有限公司
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