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A pure electric vehicle drive anti-skid system and control method

A pure electric vehicle and control method technology, applied in the field of pure electric vehicle driving anti-skid system and control, can solve the problems of complex anti-structure and high cost, and achieve the effects of less control modules, short development period and fast torque response speed

Active Publication Date: 2021-10-01
奇瑞新能源汽车股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention designs a pure electric vehicle drive anti-skid system and a control method, which solves the problems of complex drive anti-skid structure and high cost of the existing pure electric vehicle

Method used

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  • A pure electric vehicle drive anti-skid system and control method
  • A pure electric vehicle drive anti-skid system and control method

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described:

[0022] figure 1 It shows a pure electric vehicle drive anti-skid system, including an MCU integrated drive controller, a drive motor, and a wheel speed detection device; the functions of the MCU integrated drive controller include the main functions of a vehicle controller and a motor controller of a pure electric vehicle Its functions include vehicle gear position control, driving power calculation and arbitration, motor drive control, high and low voltage accessories control, high voltage power distribution, energy recovery control and mileage calculation, etc.; the wheel speed detection device is set in on the wheels of pure electric vehicles, and communicate with the MCU integrated drive controller; specifically, the wheel speed detection device is connected to the MCU integrated drive controller through a hard line, which has the characteristics of fast transmission s...

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Abstract

The invention relates to a driving anti-skid system and a control method for a pure electric vehicle. The system includes an MCU integrated drive controller, a drive motor, and a wheel speed detection device; the wheel speed detection device is arranged on a wheel and communicates with the MCU integrated drive controller; The drive motor communicates with the MCU integrated drive controller to drive the wheels; the wheel speed detection device is used to detect the wheel speed and / or acceleration of the wheels, and transmits to the MCU integrated drive controller; the MCU integrated drive controller receives the wheel speed and / or acceleration, and calculate the slip rate; when the slip rate or acceleration exceeds the threshold, the MCU integrated drive controller triggers the drive anti-skid function, and ensures the overall power of the vehicle by adjusting the torque of the drive motor; the solution control module provided by the present invention Less, high reliability, TCS function can be realized without ESP module, short development cycle, hardware and software costs are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of pure electric vehicles, and in particular relates to a pure electric vehicle drive anti-skid system and a control method. Background technique [0002] The traditional drive anti-slip control function (TCS) of existing electric vehicles is based on the ESP system. The body electronic stability (ESP) system judges the slipping state of the vehicle and calculates the torque after the TCS function intervenes, and sends the requested torque to the whole vehicle through the CAN network. Vehicle controller (VCU), the VCU judges the current vehicle state and then arbitrates the torque, and then the VCU sends the arbitrated torque to the motor controller (MCU), and the MCU controls the motor to execute the torque requested by the VCU and feeds back the actual torque To the ESP control system, the ESP control system makes further judgments and calculations based on the vehicle slipping state and the actual torque ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60W10/08B60W40/00
CPCY02T10/72
Inventor 章友京肖小城孔令静王春丽沙文瀚刘琳梁长飞薛斌盛亚楠
Owner 奇瑞新能源汽车股份有限公司
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