HOW ELECTRIC CAR SYSTEM WORKS

In present days Electric cars is common topic. Some companies change fuel vehicles with electrical vehicles. Electric cars is very good step by companies to save the nature and world. Because Electric cars produced very small amount of heat. So what is electric cars.

Electric car is an Automobile that is propelled by one or more electric motors. They use electrical energy stored in rechargeable batteries. Which batteries are recharged by common house electricity and some countries provide stations for recharging the batteries. The amount of pollution produced by electrical vehicle is depends on how electricity is made. The first electric car practical on produced in 1880. 

In electric cars two types of motors is used : brushed DC motor, and AC induction motors.

• If the motor used in electric car is DC motor, then it may run from 96 to 192 volts.
• If the motor used in electric car is AC motor, then it is a three phase AC motor running at 240 volts AC with a 300 volt battery pack.

DC motor is simpler and less expensive. DC motors have nice feature that you can overdrive them. AC motors with a specific size, shape or power rating easier.During braking, the AC motors turns into a generator and delivers power back to the batteries.

Electric batteries  used in vehicle is different from lighting and ignition batteries because they are designed to give power. Batteries used in electric cars is lead-acid, NiCD, Nickel-metal hydride and molten-salt batteries. The amount of energy stored in batteries is measured in ampere hours.

Electric motors is directly connected with wheels. Four wheel drive electric vehicle used four motors one on each wheel. two wheel drive used two motors.
The mainly asked question about electric cars is that Do electric cars have gears?
yes, Electric cars have gears . But it depends upon vehicle company how there gear system work and how many gears in system. For Example- The Tesla model S is equipped with a single-speed 9.73:1 step-down transmission, not even a two-speed transmission.there are two reasons. First, there are very few transmission capable of handling 600 Nm torque. Second, you can not spin wheels at 10,000rpm.
Some other vehicles with their electric motors and gear system.
BOLLORE- 
Vehicle                 - Bluecar
Driveline layout  - Front wheel drive, front transversal electric motor coupled with gearbox
Product               -  1 speed transaxle
Motor features   -  50 KW, max. speed 12000 rpm, max. torque 140 Nm
Gearbox features-  double stage reduction, total reduction ratio 1:9.995                                                                          
INLINE EPICYCLIC TRANSMISSION -
Vehicle                  - electric light commercial vehicle
Driveline layout  - rear wheel drive, longitudinal electric motor coupled with gearbox
Product                - inline epicyclic transmission
Motor                   - 70 KW, max. speed 8000 rpm, max. torque 300 Nm
Gearbox features- compact planetary gearset integral motor / transmission water cooling total reduction ratio 1:3.1
                            

TRANSAXLE OR INLINE TRANSMISSION -
Vehicle                    -  high performance electric GT   
Driveline layout     - rear wheel drive, 2 rear transversal electric motors coupled with gearboxes
Product                  - transaxle or inline transmission
Motor features      - 2*140 KW, max. speed 12000 rpm, max. torque 410 Nm
Gearbox features  - compact planetary gearset integral motor / transmission water cooling total reduction ratio 1:6
                           

2 SPEED ELECTRIC DRIVE -
Vehicle           - scalable size from passenger car to light commercial vehicle
Driveline layout - transversal electric motor coupled with gearbox, for front or rear full electric axle
Product              - 2 speed seamless shift transaxle
Motor features  - max. power from 70 to 110 kw, max. torque from 250 to 300 Nm, max. speed from 8000 to 12000 rpm
Ratios                -  first total reduction ratio 1:10.1 to 1:11.36, second ratio 1:4.46 to 1:5.51
Gearbox features - double stage reduction, 2 speed with seamless gearshift, park lock function available

2 SPEED ELECTRIC DRIVE -
Vehicle                 - high performance GT
Driveline layout  - rear wheel drive, rear transversal electric motor coupled with gearbox
Product                - 2 speed seamless shift transaxle
Motor features    - 140 kw, max speed 15000 rpm, max torque 270 Nm
Ratios                   - first ratio = 1:15.003, second ratio = 1:9.485
Gearbox features - seamless shift, single BLDC actuator, dry clutch & spang clutch combination integrated park brake functionality, double stage reduction

                            

4 SPEED ELECTRIC DRIVE -

Vehicle                 - high performance electric GT

Driveline layout  - rear wheel drive, 2 rear transversal electric motors coupled with gearbox

Product                -  4 speed seamless shift transaxle

Motor features    - 2*125 kw, max speed 10000 rpm, max torque 480 Nm

Ratios                   - first= 1:2.483, second= 1:1.659, third= 1:1.178, fourth= 1:0.894, FDR 1:4.00

Gearbox features - clutch and synchroniser-less with seamless shift                                                                                       

Facebook page →All About Automobile