Idle stop start systems

The Idle Stop-Start System is a low cost method for increasing fuel economy and decreasing emissions. It can reduce CO2 emissions by up to 3.5%

1. Idle Stop-Start Systems Deivanayagam H, Mechanical Engineer, Tirunelveli.

2. Brief working of the system Turns off the engine when the vehicle stops for a short interval of time especially in traffic congestion or in traffic signals Engine get restarted automatically when the vehicle is ready to move.

3. Achievable Improvements Increased fuel economy Decreased emissions

4. Sensors Engine Temperature External Temperature Cabin Temperature Battery status Steering angle Seat belt connection Brake pedal position Accelerator pedal position

5. Sensors Clutch pedal position (non-hybrid) Gear shift (non-hybrid) Wheel speed

6. Temperature sensors To record the temperature in various parts with the assistance of respective temperature sensors Will help engine to avoid cold start by maintaining Engine in the apropos temperature range

7. Position sensors To find the positions of key parts of the vehicle Brake pedal and acceleration pedal positions helps the system to ensure that the engine is at rest or in motion. Clutch pedal position and gear shift to find whether the car is in gear or neutral

8. Other sensors Wheel speed sensor to measure the speed and to send appropriate signal to the system Battery status sensor to signal the system about the back up in the battery which is mandatory to restart the engine comfortably Seat belt connection sensor is to ensure safety