Table of Contents
How do you size an electric car motor?
Mtractive = Ptotal / η= 2.526/0.85=2.97= 3 kW (approximately). For the illustration of selection of power rating for an electric car of 450 kg, a motor with output power rating of 3 kW has to be selected. In this way, power rating required to drive an electric vehicle of particular load is calculated.
How do I choose a motor for EV conversion?
10 things to consider when choosing an electric motor
- Vehicle characteristics.
- Driving cycles.
- Vehicle configuration (electric, hybrid)
- Maximal speed.
- Maximal torque.
- Maximal power.
- Battery Capacity.
- Battery Voltage.
How many amps does an electric car motor use?
A typical motor will be in the 20,000-watt to 30,000-watt range. A typical controller will be in the 40,000-watt to 60,000-watt range (for example, a 96-volt controller will deliver a maximum of 400 or 600 amps).
How do you calculate EV horsepower?
When talking about an electrical system such as that found in an electric vehicle, the mechanical power — given in watts (W), kilowatts (kW) or horsepower (PS) — is calculated by multiplying speed (RPM) by torque, the rotational equivalent of linear force, measured in pound-feet (lb-ft) or Newton meters (Nm).
How do you calculate battery capacity of an electric motor?
The key is to use the watts you know to calculate the amps at the battery voltage . For example, say you want to run a 250 watt 110VAC light bulb from an inverter for 5 hours. Amp-hours (at 12 volts) = watt-hours / 12 volts = 1470 / 12 = 122.5 amp-hours.
How many kw are Tesla Motors?
Tesla Model S | |
---|---|
Layout | Rear-motor, rear-wheel drive Dual-motor all-wheel drive (D models) |
Related | Tesla Model X |
Powertrain | |
Electric motor | Front and rear motor combined output up to 615 kW (825 bhp), 1,300 N⋅m (960 lb⋅ft), 3-phase AC induction motor |
How do you select a motor to be used?
Consider an application’s purpose and which current it uses to select the appropriate type of motor. An application’s specifications such as voltage, current, torque, and velocity will determine which motor is most appropriate so be sure to pay attention to its requirements.
How many kw does an electric car motor use?
On average, an electric vehicle uses around 30 kWh to travel 100 miles. According to Edmunds, you can calculate your car’s kilowatt-hour usage easily. Concerning charging your EV: if your car requires 40 kWh to recharge fully and the going rate is $0.18/kWh, you will be charged $7.20 for a full charge.
How many KW is an electric car?
An average electric car consumes approximately 0,20 kWh/km. On favourable weather conditions the consumption can be even 0,15 kWh or less, but year-around average in most countries is closer to 0,2 kilowatthours.
How do you calculate battery kW?
Formula for Ah to Kwh conversion is simple, multiply the Ah and the Voltage of the battery which will give you the answer in watts, divide by 1000 further to get the answer in Kilo-watt hour.
Why do we calculate the energy consumption of an electric vehicle?
The information about energy consumption helps to decide the control strategy and to design the components of a hybrid electric vehicle. Selection of motors, the mechanical design of a vehicle, rating of the battery, etc. would be affected by the energy calculation of electric vehicle.
What is the battery capacity of an electric vehicle?
Battery capacities of current EVs range from a mere 17.6 kWh in the Smart EQ ForTwo with a range of just 58 miles, up to 100 kWh in the Tesla Model S and Model X that can run for over 300 miles before needing a charge. Battery capacities and other pertinent specs for all current EVs can be found on our companion website InsideEVs.com.
How to design an electric vehicle?
The energy required to travel from a location to another decides how to design an electric vehicle. The constraint of battery to store energy limits the range of the electric vehicle. The information about energy consumption helps to decide the control strategy and to design the components of a hybrid electric vehicle.
How much battery do I need to drive 44 miles?
So in our “car” 259/144= 1.8ah per mile so you would need ah per mile x miles per charge needed x 1.2 (so you still had 20\% charge left after the drive) in our “car” 1.8 x 44 = 79.2 x 1.2 = 95 ah batteries at 144 volts needed to go the 44 miles.
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