04-09-2012, 04:50 PM
REGENERATIVE BREAKING SYSTEM
REGENERATIVE.pptx (Size: 314.81 KB / Downloads: 195)
CONVENTIONAL BREAKS
In any vehicle breaks are very important component which slow down the vehicle by converting wheels kinetical energy into heat energy/sound energy.
Conventionally drum breaks and disc break are use for producing friction between wheel and break liner in this action kinetical energy is converted into heat energy which we cant use in our propulsion of vehicle / wasted energy.
REGENERATIVE BREAKING SYSTEM
As name implies that in regenerative breaking system during breaking action kinetical energy of wheel is capture by generator/motor of vehicle which can be store in some storage unit for further use.
As there is conversion of energy into the useable form we can save good amount of energy which would have wasted in heat energy.
NECESSITY OF THE SYSTEM
In low-speed, stop- and-go traffic where frequently deceleration is required; the regenerative braking system can provide the majority of the total braking force. This vastly improves fuel economy of a vehicle
The total regenerative brake energy capture could be significantly higher (> 70 %) for a FWD vehicle
WORKING OF SYSTEM
Initially when the vehicle is moving condition then power is supply from battery to the motor. and during breaking condition power is feedback from generator to the battery.
MOTOR/GENERATOR
Selection of motor carried on torque-speed graph In EVs, HEVs, and FCVs, the torque-speed characteristics of the electric traction motor are one of main factors which can affect the vehicle performance.
A typical motor has two operational modes; the normal mode, or the constant torque region, and the extended mode, or the constant power region
Thus, determining the motor size is trade-off between motor characteristics and vehicle performance for different types of motor.
CONCLUSIONS
From the above analysis it was determined that regenerative braking is an effective way to extend the range of an electric vehicle
Best way to increase fuel economy even at urbane area.
if a more complicated control strategy between frictional braking and regenerative braking is used, then the results could be better
REGENERATIVE.pptx (Size: 314.81 KB / Downloads: 195)
CONVENTIONAL BREAKS
In any vehicle breaks are very important component which slow down the vehicle by converting wheels kinetical energy into heat energy/sound energy.
Conventionally drum breaks and disc break are use for producing friction between wheel and break liner in this action kinetical energy is converted into heat energy which we cant use in our propulsion of vehicle / wasted energy.
REGENERATIVE BREAKING SYSTEM
As name implies that in regenerative breaking system during breaking action kinetical energy of wheel is capture by generator/motor of vehicle which can be store in some storage unit for further use.
As there is conversion of energy into the useable form we can save good amount of energy which would have wasted in heat energy.
NECESSITY OF THE SYSTEM
In low-speed, stop- and-go traffic where frequently deceleration is required; the regenerative braking system can provide the majority of the total braking force. This vastly improves fuel economy of a vehicle
The total regenerative brake energy capture could be significantly higher (> 70 %) for a FWD vehicle
WORKING OF SYSTEM
Initially when the vehicle is moving condition then power is supply from battery to the motor. and during breaking condition power is feedback from generator to the battery.
MOTOR/GENERATOR
Selection of motor carried on torque-speed graph In EVs, HEVs, and FCVs, the torque-speed characteristics of the electric traction motor are one of main factors which can affect the vehicle performance.
A typical motor has two operational modes; the normal mode, or the constant torque region, and the extended mode, or the constant power region
Thus, determining the motor size is trade-off between motor characteristics and vehicle performance for different types of motor.
CONCLUSIONS
From the above analysis it was determined that regenerative braking is an effective way to extend the range of an electric vehicle
Best way to increase fuel economy even at urbane area.
if a more complicated control strategy between frictional braking and regenerative braking is used, then the results could be better