Stroke-increasing electric automobile control system and control method thereof

Abstract

The invention relates to a stroke-increasing electric automobile control system, comprising a stroke-increasing device which is used for supplying power for a high-voltage storage battery, the high-voltage storage battery is connected with a driving motor which integrates generating and driving functions into one body by a motor control unit (MCU), the motor control unit (MCU) is communicated with a vehicle management system (VMS), and the driving motor drives the vehicle to drive. The invention also discloses a control method of the stroke-increasing electric automobile control system. The invention uses the stroke-increasing device to supply power and utilizes the driving motor to generate, thus prolonging the endurance mileage from the two aspects. Namely, on the one hand, whether the stroke-increasing device needs to be started to generate electricity is determined according to the storage battery state of the high-voltage battery of the vehicle; and on the other hand, when a driver has no driving need, the control system enables the driving motor to generate electricity so as to recover energy of the vehicle kinetic energy, thus prolonging the endurance mileage.

Description

technical field [0001] The invention relates to a plug-in electric vehicle, in particular to a control system and a control method for an extended-range electric vehicle. Background technique [0002] Plug-in plug-in hybrid power system is a new research direction of hybrid power system. More and more car manufacturers will take Plug-in rechargeable system into consideration when developing hybrid power and electric vehicles. Automobiles and plug-in hybrid systems based on pure electric vehicles have become a trend. [0003] The difficulty of electric vehicles is that the energy stored in the unit weight of batteries is too little at present, and because the batteries of electric vehicles are more expensive and have not formed an economic scale, the purchase price is more expensive. As for the cost of use, some trial results are more expensive than cars, and some results are It is only one-third of that of a car, which mainly depends on the life of the battery and the local...

AI Technical Summary

Problems solved by technology

[0003] The difficulty of electric vehicles is that the energy stored in the unit weight of batteries is too little at present, and because the batteries of electric vehicles are more expensive and have not formed an economic scale, the purchase price is more expensive. As for the cost of use, some trial results are more expensive than cars, and some results are It is only one-third of that of a car, which mainly depends on the life of the battery and the local oil and electricity prices. The mileage of electric vehicles also needs to be further improved

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