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Control method of intelligent coordinated drive system based on EV front and rear drive

A control method and drive system technology, applied in control drive, electric energy management, electric vehicles, etc., can solve problems affecting vehicle passability and drivability, coordination and conversion, high cost, etc., and achieve real-time adjustable front and rear torque and torque efficiency High, cost-increased effect

Active Publication Date: 2022-06-03
SHANGHAI AUTOMOBILE GEAR WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing EV four-wheel drive systems use a dual-motor control system to drive the front and rear axles separately to provide power for the vehicle. Each requires two sets of independent motor drive systems, and the cost is relatively high.
In addition, EV adopts a fixed front drive system or rear drive system, which cannot be dynamically coordinated and converted, which affects the passability and drivability of the vehicle

Method used

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  • Control method of intelligent coordinated drive system based on EV front and rear drive
  • Control method of intelligent coordinated drive system based on EV front and rear drive

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] like figure 1 As shown, this embodiment includes: vehicle-mounted microcontroller MCU, front-drive relay K1, rear-drive relay K2, front-drive motor M1, rear-drive motor M2, front-drive input shaft 1, front-drive driving gear 2, front-drive driven gear 3, front-drive differential 4, rear drive input shaft 5, rear drive driving gear 6, rear drive driven gear 7 and rear drive differential 8, wherein: the output end of the on-board microcontroller MCU is through the U, V and W three-phase interfaces respectively It is connected with the input end of the front drive relay K1 and the input end of the rear drive relay K2. The output end of the front drive relay K1 and the output end of the rear drive relay K2 are respectively connected with the input end of the corresponding front drive motor M1 through the U, V and W three-phase interfaces. It is connected to the input end of the rear drive motor M2, the output end of the front drive motor M1 is connected to the front drive i...

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Abstract

A control method based on an EV front and rear drive intelligent coordinated drive system, through the MCUs connected to the front drive device and the rear drive device respectively output corresponding instructions to the relays in the front drive device and the rear drive device to control the motor to realize front drive and rear drive travel , four-wheel drive, reverse gear and intelligent coordination of braking control; the present invention can not only realize the drivability and smoothness of the front drive, but also realize the dynamic performance of the rear drive, and can also realize the four-wheel drive at the same time, ensuring the smoothness of the whole vehicle. drivability and safety.

Description

technical field [0001] The invention relates to a technology in the field of electric vehicles, in particular to a control method based on an EV front and rear drive intelligent coordinated drive system. Background technique [0002] Most of the existing EV four-wheel drive systems use dual-motor control systems to drive the front and rear axles respectively to provide power for the entire vehicle. Each requires two independent motor drive systems, which are costly. In addition, EV adopts a fixed front-drive system or rear-drive system, which cannot perform dynamic coordination and conversion, which affects the vehicle's passability and drivability. SUMMARY OF THE INVENTION [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a control method based on an intelligent coordinated driving system of EV front and rear drives, which can not only achieve the drivability and smoothness of the front-wheel drive, but also the power of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60L15/32
CPCB60L15/2045B60L15/32B60L2220/42B60L2260/26B60L2260/28Y02T10/72
Inventor 陈川川刘志恒房玉龙
Owner SHANGHAI AUTOMOBILE GEAR WORKS