Motor vehicle driving system

A drive system and motor vehicle technology, applied in the direction of electric vehicles, control drives, vehicle components, etc., can solve the problems of reducing the service life of the power battery, power loss of the power battery, and reducing the mileage of the vehicle, so as to extend the mileage, The effect of increasing the service life

Inactive Publication Date: 2013-12-11
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in pure electric vehicles, the drive motor is the only power output component. The power battery used to supply power to the drive motor needs to supply high-power and high-current power to the motor through the bus bar. Due to the existence of the ...

Method used

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  • Motor vehicle driving system
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Embodiment Construction

[0014] In order to further elaborate the technical means and effects that the present invention adopts to achieve the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, characteristics and effects of the motor vehicle drive system proposed according to the present invention are as follows: Details are as follows.

[0015] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of specific implementation methods, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention limit.

[0016] figure 1 It is a mai...

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Abstract

The invention relates to a motor vehicle driving system which comprises at least two inverter circuits, a vehicle control unit, a motor main controller, a pulse width modulation circuit, a driving circuit and a driving motor. The driving motor comprises a stator and a rotor; the stator is wound with at least two sets of windings; the vehicle control unit is electrically connected with the motor main controller and is used for acquiring an accelerator pedal signal and converting the accelerator pedal signal into a torque command; the motor main controller is also electrically connected with the pulse width modulation circuit and is used for controlling the pulse width modulation circuit to output a preset duty ratio to the driving circuit according to the torque command to enable the driving circuit to drive each inverter circuit so that each inverter circuit inverts direct current output by a power battery into alternating current, and providing the alternating current to each corresponding winding of the driving motor to respectively control each corresponding winding of the driving motor to output different torques so as to enable the driving motor to output a preset torque and enable a vehicle to run at a desired vehicle speed. According to the invention, a driving range of the vehicle can be prolonged; the service life of the power battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of motor vehicle drive, in particular to a motor vehicle drive system. Background technique [0002] At present, the development of new energy vehicles at home and abroad is changing with each passing day, among which the drive motor is the main power drive component of the motor vehicle. There are three main types of vehicle drive motors: AC motors, DC motors and reluctance motors. However, due to the problems of large torque ripple and high power consumption, DC motors have gradually withdrawn from the market of automotive drive motors. The torque ripple problem of the reluctance motor has not been well solved either. [0003] Nowadays, the vehicle drive motor mainly adopts the AC asynchronous motor and the AC permanent magnet synchronous motor in the AC motor. The three-phase stator windings of AC asynchronous motors and AC permanent magnet synchronous motors mostly adopt the form of single windings, a...

Claims

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Application Information

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IPC IPC(8): B60L15/20
CPCY02T10/7241Y02T10/72
Inventor 陈启苗孙文凯金启前由毅吴成明冯擎峰
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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