Control method based on EV front-rear drive intelligent coordination drive system

A technology of drive system and control method, which is applied in the direction of control drive, electric vehicle, electric energy management, etc., can solve the problems affecting vehicle passability and drivability, coordination and conversion, and high cost, so as to improve power performance, increase passability, Effect of cost increase

Active Publication Date: 2020-12-01
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 based on EV front-rear drive intelligent coordination drive system
  • Control method based on EV front-rear drive intelligent coordination drive system

Examples

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Embodiment Construction

[0024] Such as figure 1 As shown, this embodiment includes: a vehicle-mounted microcontroller MCU, a front drive relay K1, a rear drive relay K2, a front drive motor M1, a rear drive motor M2, a front drive input shaft 1, a front drive driving gear 2, a front drive driven gear 3, and a front drive differential Transmission 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 vehicle-mounted micro-controller MCU is through the U, V and W three-phase interfaces respectively It is connected to the input end of the front drive relay K1 and the input end of the rear drive relay K2, and the output end of the front drive relay K1 and the output end of the rear drive relay K2 are respectively connected to the input end of the corresponding front drive motor M1 through U, V and W three-phase interfaces It is connected to the input end of the rear drive motor M2, and the output end of the front dri...

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Abstract

The invention discloses a control method based on an EV front-rear drive intelligent coordination drive system. Corresponding instructions are outputted to relays in a front drive device and a rear drive device through an MCU connected with the front drive device and the rear drive device so as to control a motor to achieve intelligent coordination of front drive running, rear drive running, four-wheel drive running, reverse gear running and brake control. The drivability and the smoothness of the front drive can be realized, the dynamic property of the rear drive can also be realized, meanwhile, four-wheel drive can also be realized, and the drivability and the safety of the whole vehicle are ensured.

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 a dual-motor control system to drive the front and rear axles separately to provide power for the 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 be dynamically coordinated and converted, which affects the passability and drivability of the vehicle. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a control method based on an EV front and rear drive intelligent coordinated drive system, which can not only realize the drivability and smoothness of the front drive, but also realize the dynamic performanc...

Claims

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Application Information

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Patent Type & Authority Applications(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
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