what is a hybrid car compare to the normal?

• soild79

  29 Apr 06, 14:49

  How does a hybrid car save fuel more than a normal car that run more on fuel and how is its performance?
• HENG@

  29 Apr 06, 14:56

  a hybrid car runs on more electric motors which are more efficient than petrol engines. these motors often either use hydrogen fuel cells, solar cells(in the early development of the whole hybrid car concept), a dyno that turns the motion of the wheel into stored electrical energy, or simply a battery that u charge up from a static charging station. They work in tandem or independent of the petrol engines at times, hence reducing FC as the petrol engine is worked less.
• HENG@

  29 Apr 06, 15:15

  i neglected to mention that depending on the design scope of the vehicle, hybrids can be very powerful as electric motors have very high torque from very tiny motors. that torque is also instantly available from the word go. How much torque is unleashed is dependent on how much u depress the accelerator, like a dimmer switch for your light). if right from the start u step pedal to the metal, then almost full torque's what u get, unlike a petrol car where torque is very dependent of the engine's current rpms and that band where torque is high can be fairly limited. There is virtually no lag because an electric motor does not need to hit high rpms to deliver high torque figures, and can deliever that full or almost full torque from as low as 500+ rpms all the way and still manage to rev to 12,000 rpms.
  
  all of this can be clearly seen as evidenced by the Lexus RX400H
  
  it has a 3.3l V6 petrol engine and 2 electric motors.
  
  the V6 engine manages 288Nm of torque, while the front motor generates 333Nm of torque and the rear motor generates 130Nm of torque. Together the electric motors generate a monsterous 463Nm of torque. to put that into perspective, the 7th generation of Evolutions 'only' did 393Nm with a turbocharged petrol engine.
  
  the very heavy RX400H, with a total curbweight of over 2500kg(2.5 tons) still manages to hit 0-100km/h in a respectable 7.6 seconds.
• MobyDog

  29 Apr 06, 15:25

  Yeah.. and cost of the battery unit would certainly runs concurrent to the cost of petrol saved... wouldn't it. A burnt-out electrical Engine (common) would also cost a bomb and to repair it might not be economical or reliable... wouldn't it.
• hisoka

  29 Apr 06, 15:30

  hmm so in the end might be more expensive??
• HENG@

  29 Apr 06, 15:41

  Originally posted by hisoka:

  hmm so in the end might be more expensive??

  well, the technology's in its infancy, but u can think of it as doing yr bit for the environment.
  
  i think u get some car tax exemption or subsidation in sg as well.
• n0x

  29 Apr 06, 19:19

  so is it reccomendable to get a hybrid now... cos i foresee tt price of hybrid will start pulling away frm conventional petrol run cars due to higher demands and petrol pricing tends towards the $2 mark... or will it gets cheaper as technology matures??
• Tayysj

  29 Apr 06, 22:45

  no hybrid runs on hydrogen fuel cells.
  
  hydrogen fuel cell cars are just hydrogen fuel cell cars. period.
  
  another supplier of energy in a hybrid is the brakes. think is toyota when u brake the brake energy becomes electrical energy stored in the battery. thereafter.
  
  the petrol engine in the hybrid should not come on at all at low speeds. Only when u start exceeding 70kmh or so then the petrol engine will take over. the petrol will onli be used at high speeds. or when the battery runs out at low speeds. hmm tats all i noe.
• HENG@

  30 Apr 06, 11:16

  Originally posted by Tayysj:

  no hybrid runs on hydrogen fuel cells.
  
  hydrogen fuel cell cars are just hydrogen fuel cell cars. period.
  
  another supplier of energy in a hybrid is the brakes. think is toyota when u brake the brake energy becomes electrical energy stored in the battery. thereafter.
  
  the petrol engine in the hybrid should not come on at all at low speeds. Only when u start exceeding 70kmh or so then the petrol engine will take over. the petrol will onli be used at high speeds. or when the battery runs out at low speeds. hmm tats all i noe.

  ah my bad. yes hybrids do not include hydrogen fuel cells.
  
  the other braking thing u're talking about would be regenerative braking. its present in the Mercedes Orion VII hybrid buses too.