CN201544892U - Control system of electric vehicle - Google Patents

The utility model discloses a control system of an electric vehicle, consisting of a central control unit, a power supply converter, a boost converter, an alternating-current motor driver, a regenerative braking energy recovery controller, a motor driving mode controller, a shift sensor, an accelerating pedal, an automatic cruise controller, a storage battery working state controller, a safety protector, an air-conditioner controller, a vehicle-mounted charger, a cooling controller and a vehicle working state and control system indicating and alarming unit. The control system adopts a large-scale integrated circuit, a digital s-type design, singlechip control and a modular structure, has compact structure, centralized control and convenient maintenance, reduces the battery loss, gives a maximum play to the limited electric quantity in the storage battery, prolongs the discharge time of the battery, leads the driving mileage to be greatly improved after the electric vehicle is charged by one time, has the obvious characteristics of low-speed constant torque and high-speed constant power and improves the driving performance of the electric vehicle.

Technical field

The utility model relates to a kind of control system of electric automobile, is mainly used in the AC driving electronlmobil, and it is the core component of electronlmobil.

Background technology

Traditional electric automobile comprises that the most of DC machine that adopts of mixed power electric car drives, and DC motor is compared power density, overload capacity, power factor, range of speed with alternating-current motor/AC motor, still reliability, property firm in structure, quality, size aspect all are not so good as alternating-current motor/AC motor.So the direct drive electronlmobil, especially energy-conservation, mechanical characteristics and tractive performance aspect are not as the AC electrical automobile.

Summary of the invention

At the deficiency of prior art, the utility model provides a kind of control system of electric automobile.

Below introduce a kind of control system of electric automobile of the utility model in detail, comprise Central Processing Unit (CPU), this Central Processing Unit (CPU) is connected with D and A converter, and D and A converter is connected with boost pressure controller, and this boost pressure controller is connected with Central Processing Unit (CPU) again; D and A converter simultaneously connects battery pack, and this battery pack is connected with Central Processing Unit (CPU) by battery tester again; Battery pack connects the 220V civil power by onboard charger and charges; Onboard charger is connected with Central Processing Unit (CPU) by the regenerating braking energy recovery controller; Boost pressure controller is connected air-conditioning with the supply unit that D and A converter forms, and air-conditioning is connected with Central Processing Unit (CPU) through air-conditioner controller; Central Processing Unit (CPU) is connected with AC induction motor through AC motor drive; This AC induction motor drives drive wheel, and drive wheel is provided with the speed angular transducer and gives AC motor drive with signal feedback; AC induction motor also is connected with the regenerating braking energy recovery controller; Central Processing Unit (CPU) is connected with crash sensor through the safety protection control device; Central Processing Unit (CPU) connects cooling controller; Central Processing Unit (CPU) connects gear position sensor; Central Processing Unit (CPU) connects acceleration pedal; Central Processing Unit (CPU) connects brake pedal; Central Processing Unit (CPU) connects the motor drive mode controller; Central Processing Unit (CPU) connects automobile mode of operation and control system indication caution unit.

Optimize; Described Central Processing Unit (CPU) connects the auto-cruising control device.

Optimize; Described Central Processing Unit (CPU) connects emergency battery.

Optimize; Described AC motor drive comprises power circuit, power circuit control AC induction motor; The operating instruction of Central Processing Unit (CPU) drives power circuit through arithmetical circuit and driving circuit formation control command; Power circuit feeds back to arithmetical circuit through voltage and current detection circuit; Motor also feeds back to arithmetical circuit through sensor and speed control testing circuit; AC motor drive also is provided with protective circuit.

The utility model has the advantages that this control system of electric automobile adopts large-scale integration circuit, Design of digital, Single-chip Controlling, modular construction; Have compact conformation, in the control sets, easy to maintenance, reduce battery consumption, limited electric weight in the maximum performance storage battery has prolonged battery discharge time, makes the continual mileage after electronlmobil once charges improve (compare with traditional direct current drive automobile and improved 100%) greatly; Have the permanent torque of low speed, the distinguishing feature of the permanent power of high speed has improved the rideability of electronlmobil.Main operating control of internal-combustion engines vehicle and method of operating on operating control and method of operating, inherited or continue to use, adapt to the operating habit of chaufeur, simple to operateization and standardization made.In whole-control system, adopt full automaticity, electromechanical integration control system, reach safe, reliable, energy saving, environmental protection and purpose flexibly.

Description of drawings

Fig. 1 is a circuit diagram of the present utility model;

Fig. 2 is the utility model AC motor drive schematic diagram;

Fig. 3 is the utility model auto against protection philosophy figure;

Drive wheel rotating speed constitution diagram when Fig. 4 is the starting of the wet and slippery road surface of the utility model.

The specific embodiment

Embodiment 1:

Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to aforesaid operations, and all variations of making in essential scope of the present utility model, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.