1. Power Requirements: As a general rule of thumb, a minimum of 20 to 30 horsepower (hp) is required to propel a lightweight electric car efficiently. A 10hp motor may struggle to provide adequate torque and speed for practical use in a car.
2. Weight of the Vehicle: The heavier your electric car, the more power you'll need to move it. A 10hp motor might be enough for a very lightweight vehicle, but it will struggle with even a moderately heavy one.
3. Speed and Efficiency: If you want your electric car to reach highway speeds or have good acceleration, you'll need a more powerful motor. A 10hp motor will likely provide limited top speed and sluggish acceleration.
4. Terrain: If you plan to drive your electric car in hilly or mountainous areas, you'll need a more powerful motor to overcome the inclines. A 10hp motor may not be sufficient for such terrains.
5. Powertrain Losses: Electric motors lose some power through inefficiencies in the motor, controller, and transmission. You should consider these losses when calculating the required motor power for your electric car.
6. Battery Capacity: A 10hp motor may drain your battery quickly if it's not matched with an appropriately sized battery pack. You'll need to ensure that your battery can provide enough energy for the motor to operate without frequent recharging.
Therefore, while a 10hp motor might be suitable for low-speed applications or very small vehicles, it's generally recommended to use a more powerful motor of at least 20hp for a practical and efficient electric car.