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Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal)

A technology of braking energy recovery and pure electric vehicles, which is applied in electric braking systems, electric vehicles, electric vehicle charging technology, etc., can solve problems such as differences in operating conditions and shift control, and achieve easy control, low cost, The effect of good vehicle braking force distribution

Inactive Publication Date: 2012-10-10
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if it is matched with the motor and applied to a pure electric vehicle, there are certain differences in its operating conditions and shift control, especially to make reasonable use of regenerative energy to improve the driving range of electric vehicles

Method used

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  • Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal)
  • Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal)
  • Pure electric vehicle braking energy recovery control system and method based on DCT (Data Communication Terminal)

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Embodiment Construction

[0021] refer to Figure 1 to Figure 3 Examples of the present invention will be described.

[0022] In order to make the above objects, features and advantages more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] like figure 1 As shown, a DCT-based braking energy recovery control system for pure electric vehicles includes: vehicle battery 1, motor 2, two-speed DCT automatic transmission 3, vehicle speed sensor 4, master cylinder pressure sensor 5, and vehicle controller 6 , battery management system 7, motor controller 8, gearbox controller 9, regenerative brake anti-lock braking system 10, vehicle battery 1 supplies power to motor 2, motor 2 and DCT automatic transmission 3 are mechanically connected, and the vehicle is controlled Device 6, battery management system 7, motor controller 8, gearbox controller 9, regenerative brake anti-lock braking system 10, vehic...

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PUM

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Abstract

The invention discloses a pure electric vehicle braking energy recovery control system and method based on a DCT (Data Communication Terminal), relating to the technical field of electric vehicles. The control system comprises a vehicle-mounted storage battery, a motor, a two-gear DCT automatic gearbox, a vehicle speed sensor, a master cylinder pressure sensor, a vehicle control unit, a battery management system, a motor controller, a gearbox controller and a feedback type brake anti-lock system, wherein the vehicle-mounted storage battery supplies power for the motor, and the motor is mechanically connected with the DCT automatic gearbox; and the vehicle control unit, the battery management system, the motor controller, the gearbox controller, the feedback type brake anti-lock system, the vehicle speed sensor and the master cylinder pressure sensor carry out information communication and instruction issue through a network and hard wires. The invention also discloses the pure electric vehicle braking energy recovery control method based on the DCT. The energy utilization and the driving mileage of the vehicles are increased.

Description

Technical field [0001] The invention relates to the technical field of electric vehicles, and in particular to a DCT-based braking energy recovery control system and method for pure electric vehicles. Background technique [0002] Most foreign pure electric vehicle solutions are based on single-stage deceleration, and the speed regulation function requirements are completely realized through the motor. The low-speed constant torque and high-speed constant power characteristics of the motor cover the power requirements of the entire vehicle under all working conditions. However, due to gaps in manufacturing technology among domestic motors, it is difficult for the maximum speed to reach more than 10,000 rpm, which limits the improvement of the power level of pure electric vehicles and puts forward higher requirements for the high-efficiency area of ​​the motor. Therefore, single-stage reduction is used It is difficult to obtain good power and economy. [0003] In the develop...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60W10/18B60W10/10B60W10/08B60W10/26B60W40/105
CPCY02T90/16
Inventor 柯南极张青平魏跃远曲婧瑶张兆龙朱波
Owner BEIJING ELECTRIC VEHICLE
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