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Electric vehicle driving system and control method

A technology of electric vehicles and drive systems, applied in the electronic field, to achieve the effect of improving shift quality, small impact, and smooth shifting

Inactive Publication Date: 2017-09-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the problems of various defects in the electric vehicle driving method in the prior art, the technical problem to be solved by the embodiment of the present invention is to propose a more reasonable structure and high efficiency electric vehicle driving method and control method

Method used

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  • Electric vehicle driving system and control method

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Embodiment Construction

[0039] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0040] As an important part of the integrated system, the drive motor converts the electric energy of the power battery into mechanical energy under the control of the motor controller and according to the driver's intention, and outputs the torque and power required under the actual driving conditions of the pure electric vehicle.

[0041]The motor controller is used as the control center of the entire driving system, and it is composed of an inverter and a controller. The inverter receives the DC power delivered by the battery, and converts it into three-phase AC power to provide power to the car motor. The controller receives signals such as the motor speed and feeds them back to the instrument. When braking or acceleration occurs, the controller cont...

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Abstract

The embodiment of the invention provides an electric vehicle driving system and a control method. The system comprises a drive motor, a motor controller, an AMT transmission and an AMT transmission controller; the motor controller is connected with the drive motor, and the transmission controller is connected with the transmission; the drive motor comprises a drive motor rotor; the AMT transmission comprises a gear tooth ring, a shifting fork, a joint sleeve, a shifting motor, a transmission input shaft, a rotational speed sensor and a transmission output shaft; the drive motor rotor of the drive motor is connected with the transmission input shaft of the transmission; the gear tooth ring is arranged on the transmission input shaft; the joint sleeve is arranged on the transmission output shaft to be engaged with different dimensions of tooth rings of the gear tooth ring; the drive motor further comprises the shifting motor and the shifting fork; and the shifting motor is connected with the shifting fork so as to control the joint sleeve to be disengaged from the gear tooth ring through the shifting fork to achieve downshift or control the joint sleeve to be engaged with the different tooth rings of the gear tooth ring through the shifting fork to achieve gear engaging.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an electric vehicle driving method and control method. Background technique [0002] With the development of society, electric vehicles have gradually entered the family. The driving system of electric vehicles is completely different from ordinary fuel vehicles. In my country, high-density permanent magnet synchronous motors are generally used as vehicle motors. In terms of motor design, the design concept of modern automotive motor system is adopted to initially solve the limit design of multi-objective high-performance automotive motors. Combined with the application of control strategy system integration simulation technology and the structural integration design technology, the motor and transmission are realized in machinery, Highly integrated design and application of electromagnetic and thermal. The integration and integration trend of the electric drive system is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60W10/11B60W30/19B60L15/20B60K17/12
CPCB60K17/12B60L15/20B60W10/08B60W10/11B60W30/19Y02T10/72
Inventor 宋强叶山顶李易庭王玎秦保庆
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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