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Double battery pack power system of electromobile

A technology for power systems and electric vehicles, applied in electric power units, power units, vehicle components, etc., can solve problems such as immature technology, and achieve the effects of reducing frequent charging and discharging, prolonging life, and enhancing endurance.

Inactive Publication Date: 2015-02-11
江苏锋华车辆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current electric vehicle technology is not mature enough

Method used

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  • Double battery pack power system of electromobile
  • Double battery pack power system of electromobile

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Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 As shown, a kind of electric vehicle dual-battery pack power system of the present invention comprises drive motor 1, generator 2, transmission device 3, first battery pack 4, second battery pack 5, and ECU6; Drive motor 1 output shaft and power generation The rotor of the machine 2 is connected to the transmission device 3, the ECU6 is connected to the transmission device 3 for signals, the power output terminal of the generator 2 is connected to the power input terminal of the first battery pack 4 or the second battery pack 5, the first battery pack 4, the second battery pack A transfer switch 7 is arranged between the group 5 and the drive motor 1 . The first battery pack 4 or the second battery pack 5 supplies power to the vehicle load.

[0013] The ECU is equipped with a conversion unit that controls the conversion switch, an...

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Abstract

The invention discloses a double battery pack power system of an electromobile, which comprises a driving motor, a power generator, a speed change device, a first battery pack, a second battery pack and an ECU (electronic control unit), wherein an output shaft of the driving motor is connected with a generator rotor and the speed change device; the ECU in signal connection with the speed change device; a power output end of the power generator is connected with a power input end of the first battery pack or the second battery pack; and a change-over switch is arranged among the first battery pack, the second battery pack and the driving motor. The system achieves switchover between main power supply and auxiliary power supply via the double battery packs; discharge of the two battery packs is switched under the control of the ECU, and charge is provided for the two battery packs; the system is applicable to operation design of the electromobile under a larger load; in addition, the cruising ability of batteries are improved; frequent charge and discharge of the single battery can be reduced correspondingly due to the two battery packs; and service lives of the batteries are prolonged.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a dual-battery pack power system of an electric automobile. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. The composition of electric vehicles includes: electric drive and control systems, mechanical systems such as drive force transmission, and working devices to complete established tasks. Compared with traditional cars, electric vehicles have less pollution to the environment, so their development prospects are promising. However, the current electric vehicle technology is not mature enough. The research and development of various technologies of electric vehicles has caused a high upsurge in various countries, among which the research on the power supply of electric vehicles is the most. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/04B60R16/033
Inventor 王宇峰
Owner 江苏锋华车辆科技有限公司
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