Electric Motor Power: 180 HP & Car Fitment

  • Thread starter Thread starter QAT
  • Start date Start date
  • Tags Tags
    Motor
AI Thread Summary
Electric motors with 180 horsepower are available, with the Tesla Roadster's 3-Phase AC Induction Motor being a notable example, delivering 288 peak horsepower. This motor operates at 375 volts and can draw up to 900 amps, equating to a power requirement of approximately 550 kW for optimal performance. For a 180 HP output, an electric motor would need to provide around 135 kW. The discussion highlights the complexity of matching motor specifications to vehicle fitment and power requirements. Understanding these specifications is crucial for anyone considering electric motor integration in cars.
QAT
Messages
8
Reaction score
0
The first question, is their any electric motor (ac/dc) that has 180 horsepower and can fit comfortabley in a car. Second question, (if no for the first question disregard this one) how much power would be needed to power it, amps and voltage.
 
Engineering news on Phys.org
QAT said:
The first question, is their any electric motor (ac/dc) that has 180 horsepower and can fit comfortabley in a car. Second question, (if no for the first question disregard this one) how much power would be needed to power it, amps and voltage.

The Tesla electric car comes to mind:

http://www.teslamotors.com/roadster/technology

The Roadster is powered by a 3-Phase Alternating Current Induction Motor. Small, but strong, the motor weighs just over 115 pounds. 375 volts push up to 900 Amps of current into the motor to create magnetic fields. It delivers 288 peak horsepower and 295 lbs-ft of torque at the driver's command. At top speed, the motor is spinning at 14,000 revolutions per minute.
 
Last edited by a moderator:
Note that one horsepower = 745.699872 Watts (according to Google Calculator, anyway.) This means that if you need 180 HP, you are looking at a 135 kW output electric motor, to give you an idea of what you need :)

The Tesla one would be 288 hp, which is 215 kw. That means you need more power than that to actually spin the motor, if I'm not mistaken. According to 375V, 900A, 3 phase AC, that's... 550kW? That seems high...
 
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
Back
Top