Whats about Hybrid racing Cars with boost and recuperation function

Discussion in 'Wish Lists' started by Leonardo1962, Jul 13, 2012.

  1. Leonardo1962

    Leonardo1962 Registered

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    Will hybrid cars be included, with additional Elektrik motors, with the ability to boost and recuperate at braking?
    Like Fisker Karma or the Porsche 918 Spyder or Chevy Volt.

    The electric motors on front or rear axle could automaticly or manual be activated to boost at acceleration for a limited time only, if braking did Increase the state of charge.

    Could be a new racing experience with buzzing sound of electric power, especially on Racing with limited fuel.

    Leonardo ;)
     
  2. jtbo

    jtbo Registered

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    Hmm, I wonder if boost function could be used to change torque curve to meet electric motor curve and keep fuel consumption at zero, that would still leave electricity consumption and charging, some code would of course be needed, but that is probably something that have to be implemented at some point as world is how it is and technology starts to be common.

    edit: I got one idea again, such code that is needed for hybrid systems could pehaps be usable with nitrous systems or water injection as some put switch to throttle pedal and when enough throttle is pressed automatically water is being injected etc. Same as with hybrids when you press enough throttle it activates electric motors to improve acceleration.
     
  3. evn39LL

    evn39LL Registered

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    First off, I realize this is an old thread, but figured it may need a revisit since there's been a lot happening for hybrid technology since 2012 - especially in racing. For rfactor2 as a sim to fully emulate whats going on with an EV or hybrid, I can see where it would need a few new parameters:

    View attachment 13518

    Motortorque=(start-up torque)
    All electric motors behave in a similar manner utilizing a maximum amount of electrical energy to transform into rotational power, but with a limitation of how much torque can be made. The start up torque is dissipated through motor load and develops a set amount of power via effeciency. As shown on the chart, the higher the peak power, the higher the start up torque can be set before the motor reaches peak power.

    Motoreffeciency=(an eqaution representing the ratio of effeciency throughout the rev-range to be used as a multiplier for torque and power)

    Powersource=(capacity, controller rate, system voltage)
    Powerregen=(regeneration rate, regeneration type)
    Capacity set in A*h, essentially “counts down” when ignition is on and varies the use based on current loading – also defines its discharge rate since low capacities with a large draw discharge very quickly. Controller rate is set to amount of current the motor controller can provide in Amperes. System voltage is just that-how much battery there is on board. Essentially, peak motor power is derived as controller rate * system voltage, while running capacity is capacity * system voltage (W*h), making it easy to configure running times.

    Regeneration rate is any kind of feedback from the type set as an effeciency ratio. Type is braking only or constant – as in an external source like a generator or engine running full time to charge the batteries.

    UsageLimits=(time, type)
    Time in seconds for a temporary allowed power boost. Type set for regenerative recharging-i.e. Capacators vs. unlimited / out of charge until fully recharged.

    Setting ENGINE=electric should specify that the power source is electric only, not a hybrid-combustion engine.

    The sim should utilize the parameters in the physics engine to basically boost the engine torque curve for a set amount of time and power based on the settings. One could add heat settings and extra weight distribution from the batteries/motor, but the should be part of the mass/inertia set as well as not having much of an effect on engine performance in general, other than cooling.

    Overall, the settings are independent of a temporary boost or a % of existing power since it is a completely different subsystem, basically doubling the engine parameters.

    If anyone has additional ideas, feel free to leave a note - I'd like to see this as a possible add-in or maybe even get Tim/some developers involved if they have the time.
     
  4. deBorgo83

    deBorgo83 Registered

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    Ideally ISI will license an LMP1-H car, then these technologies will have to be implemented. :cool:
     

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