Hybrids

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Hybrids

  1. 1. A Seminar On HYBRID CAR 1
  2. 2. WHAT IS A HYBRID?  A hybrid is a vehicle that is propelled by two power sources. Internal combustion engine (ICE) + Electric motor powered by batteries. 2
  3. 3. OBJECTIVES  Types of hybrid vehicles  Hybrid vehicle operation  Commonly asked questions about hybrids  The pay back rate of hybrids  Advantages and disadvantages of owning a hybrid 3
  4. 4. LEVELS OF HYBRID VEHICLES  Full hybrid  They feature idle-stop function  Regenerative braking  Most are capable of using the electric motor alone to propel the vehicle  The electric motor also assists the engine  Battery voltages are about 200 to 300 volts 4
  5. 5. LEVELS OF HYBRID VEHICLES  Medium hybrid  They feature idle-stop function  Regenerative braking  Most are not capable of using the electric motor alone to propel the vehicle  The electric motor usually assists the engine  Battery voltages are about 144 to 158 volts 5
  6. 6. LEVELS OF HYBRID VEHICLES  Mild Hybrid  They feature idle-stop function  Regenerative braking  Are not capable of using the electric motor to propel the vehicle  These systems are usually 42 volts or less 6
  7. 7. Basic Components  Power plant ICE  Electric motor / Generator  Battery  Transmission  Inverter 7
  8. 8. TYPES OF HYBRID VEHICLES  Series hybrid  Vehicle propulsion is by a electric motor only  ICE is used for charging the HV battery 8
  9. 9. Series Hybrid 9
  10. 10. TYPES OF HYBRID VEHICLES  Parallel hybrid  Uses multiple propulsion energy sources  This means the electric motor and ICE propels the vehicle 10
  11. 11. Parallel Hybrid 11
  12. 12. TYPES OF HYBRID VEHICLES  Series-parallel hybrid  These vehicles can operate using the electric motor alone or with assist of the ICE  They combine both functions of series and parallel design 12
  13. 13. Drive Modes of Operation 13
  14. 14. Maintenance  Hybrid vehicles require the same maintenance as regular vehicles  However, some hybrids require inverter flushes and battery filter changes.  There be additional costs involved in replacing low rolling resistance tires.  Vehicle repairs may cost more than a regular vehicle 14
  15. 15. HOW LONG WILL A HIGH VOLTAGE BATTERY LAST?  Most hybrid high voltage batteries last 180,000 to 240,000 miles  Manufacture battery warranties  Honda  8 years / 80,000 miles  Toyota  8 years / 100,000 miles  Ford  8 years / 100,000 miles  General Motors  8 years / 100,000 miles 15
  16. 16. ARE HYBRID VEHICLES SAFE? The following will disable the high voltage system  High voltage interlock circuit  Airbag deployment  High voltage leak  Removing battery negative 16
  17. 17. WHAT HAPPENS IF A HYBRID VEHICLE IS SUBMERGED IN WATER?  There is no risk of electric shock from touching the car's body or framework—in or out of the water. 17
  18. 18. All Electric Vehicle Performance  Speeds range from 25-90+ mph  Distances per charge range from 25-250 miles  Equivalent mileages @ $4.00/gal gas: • Cars 100-200 mpg • Motorcycles 200-400 mpg  Considerably less maintenance/complexity • No fluids, muffler, water pump, oil, belts, starter • Longer life brakes (regen), less heat degradation • No stops at gas station or oil changes, starts in winter, fewer places to pay bills (home electric bill) 18
  19. 19. Advantages Disadvantages  Better mileage  Improved acceleration (most of the time)  Less dependence on fossil fuels  Lower emissions  Some states provide incentives for driving a hybrid  Great driving experience  Little highway mileage increase  High initial cost  Needs high fuel cost to be worthwhile  Could cost more to repair  Extra maintenance items  Some hybrids need special tires HYBRID VEHICLE VS REGULAR VEHICLE 19
  20. 20. CONCLUSION 20
  21. 21. REFERENCE 21

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