A rear-wheel electric scooter has to be designed with the following requirements: E-scooter mass m, =...

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A rear-wheel electric scooter has to be designed with the following requirements: E-scooter mass m, = 20 kg Maximum acceleration amax = 2 m/s² Maximum deceleration amin=-4 m/s² Maximum speed Vmax = 20 km/h Maximum load of 1 person up to mp = 80 kg. - - - a) b) Maximum drag resistance at wheel level TR = 20 Nm Mass moment of inertia of the motor JM = 0.05 kg m² Diameter of the wheels d = 20cm Spur gear set between wheel and electric motor is = 1.5 All the losses in the drive train can be neglected Determine the maximum rotational speed nmax of the electric motor in rpm. (use nmax 1000 1/min if you cannot solve the question) Determine the reduced mass moment of inertia at the output shaft of the electric motor Jred in kgm². The mass moment of inertia of the spur gear set and rotating wheels can be ignored. (use Jred = 0.5 kgm² if you cannot solve the question) c) Calculate the torque in Nm that has to be provided by the electric motor TIN,max to ensure maximum acceleration during operation under maximum load conditions. (use TIN.max 25 Nm if you cannot solve the question) d) Calculate the maximum power output requirement needed for the electric motor PIN max to ensure maximum acceleration at maximum load conditions. = e) Draw the s-t,v-t, a-t (distance, velocity, acceleration) diagrams for the following scenario: The user starts from standstill and accelerates with the constant acceleration amax until the maximum speed Vmax is reached. Then the user travels at constant speed for const = 20s. In the final phase the user decelerates with amin to standstill. Provide the adequate equations. (Use m, m/s, m/s² and s as units) A rear-wheel electric scooter has to be designed with the following requirements: E-scooter mass m, = 20 kg Maximum acceleration amax = 2 m/s² Maximum deceleration amin=-4 m/s² Maximum speed Vmax = 20 km/h Maximum load of 1 person up to mp = 80 kg. - - - a) b) Maximum drag resistance at wheel level TR = 20 Nm Mass moment of inertia of the motor JM = 0.05 kg m² Diameter of the wheels d = 20cm Spur gear set between wheel and electric motor is = 1.5 All the losses in the drive train can be neglected Determine the maximum rotational speed nmax of the electric motor in rpm. (use nmax 1000 1/min if you cannot solve the question) Determine the reduced mass moment of inertia at the output shaft of the electric motor Jred in kgm². The mass moment of inertia of the spur gear set and rotating wheels can be ignored. (use Jred = 0.5 kgm² if you cannot solve the question) c) Calculate the torque in Nm that has to be provided by the electric motor TIN,max to ensure maximum acceleration during operation under maximum load conditions. (use TIN.max 25 Nm if you cannot solve the question) d) Calculate the maximum power output requirement needed for the electric motor PIN max to ensure maximum acceleration at maximum load conditions. = e) Draw the s-t,v-t, a-t (distance, velocity, acceleration) diagrams for the following scenario: The user starts from standstill and accelerates with the constant acceleration amax until the maximum speed Vmax is reached. Then the user travels at constant speed for const = 20s. In the final phase the user decelerates with amin to standstill. Provide the adequate equations. (Use m, m/s, m/s² and s as units)