Control method of electric drive system and vehicle

By controlling the current of the electromagnetic driver in the electric drive system and adjusting the current according to the actual needs of the vehicle, the problem of high energy consumption of the disconnection device is solved, and the energy efficiency of the electric drive system and the economy of the whole vehicle are improved.

CN119682537APending Publication Date: 2025-03-25GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202510005712.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The disengagement device in the existing electric drive system consumes a large amount of energy, resulting in a reduction in the economy of the vehicle.

Method used

By controlling the current of the electromagnetic driver, it is adjusted to the first current when the disconnection device is combined, and after the combination, it is adjusted to the second current according to the comprehensive torque request of the vehicle and the actual torque of the driving motor, thereby optimizing the current use of the electromagnetic driver.

Benefits of technology

While ensuring the power of the vehicle, it reduces the energy consumption of the electromagnetic driver, reduces the power consumption and heating of the disconnection device, improves the energy efficiency of the electric drive system, and enhances the economy of the entire vehicle.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention discloses a control method of an electric driving system and a vehicle, the electric driving system is used for the vehicle and comprises a driving motor and a disengagement device, the disengagement device is used for realizing power transmission and disconnection between the driving motor and a wheel end, and the disengagement device comprises an electromagnetic driver, a return spring and a clutch; the clutch comprises a first connecting piece and a second connecting piece which are detachably connected. The control method comprises the steps that the disengaging device obtains a combination instruction; the electromagnetic driver is controlled to be powered on, and the current of the electromagnetic driver is controlled to be first current, so that the first connecting piece is combined with the second connecting piece; confirming that the first connecting piece and the second connecting piece are combined; and controlling the current of the electromagnetic driver to be adjusted from the first current to a second current, wherein the second current is determined according to the comprehensive torque request of the vehicle and the actual torque of the driving motor. According to the control method of the electric drive system, the power consumption and heating of the disconnecting device can be reduced, the energy efficiency of the electric drive system is improved, and the economical efficiency of the whole vehicle is improved.
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