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Braking system and braking method of double-shaft driven electric vehicle

A technology for electric vehicles and braking systems, applied in electric braking systems, electric vehicles, power management, etc., can solve the problems of high consistency requirements, weak driving ability, and complex driving control process, so as to ensure safety and stability. The effect of improving energy storage efficiency and improving energy recovery efficiency

Inactive Publication Date: 2013-07-10
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The driving ability of one motor driving method is weak, and the driving ability of four motor driving methods is strong, but the driving control process is more complicated and requires higher consistency

Method used

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  • Braking system and braking method of double-shaft driven electric vehicle
  • Braking system and braking method of double-shaft driven electric vehicle
  • Braking system and braking method of double-shaft driven electric vehicle

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Please refer to figure 1 with figure 2 , figure 1 Shown is the structural representation of an embodiment of the braking system of the biaxial drive electric vehicle of the present invention, figure 2 Schematic diagram of braking for this embodiment.

[0035] Such as figure 1shown, combined with figure 2 As shown in the schematic diagram of electric vehicle braking, the electric vehicle of this embodiment is driven by two motors and two shafts, and its braking system includes a vehicle control device, a hydraulic braking control device 2 and a regenerative braking control device 3 . Among them, the vehicle control device is the core device for control and coordination of vehicle drive control, vehicle energy optimization management, vehicle network management, vehicle feedback braking control,...

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Abstract

The invention discloses a braking system and a braking method of a double-shaft driven electric vehicle. The braking system comprises a whole vehicle control device, a mechanical braking control device and a regenerative braking control device, wherein the mechanical braking control device and the regenerative braking control device are connected with the whole vehicle control device, the regenerative braking control device comprises a front drive motor and a rear drive motor, the front drive motor is connected with a front wheel drive shaft of the electric vehicle through a gear, the rear drive motor is connected with a rear wheel drive shaft of the electric vehicle through a gear, the regenerative braking control device also comprises a front energy storage module and a rear energy storage module, the front energy storage module is electrically connected with a controller of the front drive motor, the rear energy storage module is electrically connected with a controller of the rear drive motor, and the front energy storage module and the rear energy storage module are electrically connected through a DC / DC converter. According to the invention, through respectively adding a drive motor on the front and rear wheel axles of the electric vehicle and respectively arranging an energy storage module on each drive motor, the efficient braking energy recovery is facilitated while the dynamic property of the electric vehicle is ensured.

Description

technical field [0001] The invention belongs to the technical field of automobile brake control, in particular relates to the brake control of an electric vehicle, and more specifically relates to a braking system and a braking method of an electric vehicle driven by two shafts. Background technique [0002] With the globalization of the world economy, the accelerated development of cities and the gradual increase in the pace of life, energy crisis and environmental pollution have increasingly become serious factors affecting the quality of life of modern residents. Due to the advantages of low environmental pollution, low noise, simple structure, and wide range of use, electric vehicles have gradually entered human daily life. Another important factor for the rapid development and application of electric vehicles is the high efficiency of electric vehicles, which is also the most prominent feature in terms of energy utilization of electric vehicles. Specifically, in the ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10
CPCY02T10/72
Inventor 贠海涛刘尊年赵玉兰郝魁孙建强吕福麟滕彦飞
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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