Know the Key "Number" of Electric Vehicles (Automobiles & Vehicles - Auto Parts & Services)
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Item ID 2298325 in Category: Automobiles & Vehicles - Auto Parts & Services
Know the Key "Number" of Electric Vehicles | |
How powerful is the car running? Power unit: watt (W) and horsepower (hp) Entering the era of electric vehicles, the most important figure to know about electric vehicles is the power output In the past, when we wanted to evaluate a new car, one of the most commonly used indicators was "horsepower". Horsepower determines the character of a car, whether it is a well-regulated Volkswagen, a passionate sports car, or a beast-level supercar. After horsepower is combined with car style, model, function, etc., more classifications are derived. Generally speaking, horsepower is one of the key indicators that affect vehicle performance. When it comes to electric vehicles, the accompanying nouns that can more directly mark the power unit become "power output" and "watt (W)". Many people may feel a sense of distance when they see the power output, but in fact horsepower is also power. It is a kind of output unit, and the output unit of an electric vehicle becomes "watt (W)" of electric power. The higher the watt, the higher the power, which means the higher the horsepower. Since both horsepower and watts are units of power, the two can actually be converted. 1 imperial horsepower is about 745.7 watts, and 1 metric horsepower is about 735.5 watts. The more commonly used form of watt is kW, read as kilowatts, which is 1 kilowatt; for example, a car with about 150 metric horsepower is converted to a power output level of about 110kW. Let’s take the U-CAR official car Nissan Leaf as an example. The output power of its electric motor is 110kW, read as 110 kilowatts, and we know that the conversion of power into metric horsepower needs to be multiplied by about 1.36, so after multiplying 110kW by 1.36, we get about 149 horsepower ; On the contrary, when 149 horsepower is converted back to electric power, it is multiplied by 0.735, which is equal to about 110kW. In science, as long as there is conversion, there is the possibility of error. Therefore, if there is original data, the original data should prevail. If there is no, it is recommended to use the conversion method. Ultimately, in the future, the term "horsepower" may be completely replaced by power, because current charging devices, recharging mechanisms, and even battery packs all use electrical power or electrical energy units instead of horsepower. Once electric vehicles become mainstream, daily There will be a lot of power figures in life. After getting used to it, you can even quickly calculate the charging time, cruising range, etc. at this time. If you use horsepower units at this time, not only the calculation is more troublesome, but also unintuitive. 2. The fuel tank has become a battery! Electric energy unit: kilowatt-hour (kWh) In the field of electric vehicles, the energy source for driving the vehicle is changed from the fuel of the traditional internal combustion engine to the electric energy in the battery, and the most widely calculated unit of electric energy is kWh, pronounced as kilowatt-hour, which means that 1 kilowatt of electric power in 1 hour Work done is a unit of energy. In the vernacular, 1kWh is the "degree" often heard in daily life, 1kWh is 1 degree of electricity, 10kWh is 10 degrees of electricity, and the battery pack in an electric vehicle, regardless of its chemical composition or form, can be calculated through the formula Calculate how many kWh its capacity is. In other words, the energy source required by the car has changed from "liters" of fuel to "kilowatt hours" of batteries. To make readers more conceptual, we take Toyota Prius as an example. The battery capacity of this hybrid vehicle is 1.6kWh, which is 1.6 kilowatt-hours of electricity. Another Toyota Prius PHEV plug-in hybrid has a battery capacity of 8.8 kWh, while the battery capacity of the pure electric Nissan Leaf is 40kWh, and the entry-level Standard Range Plus version of the Tesla Model 3 is 60kWh. The higher the kWh of the battery, the more energy it contains, and the theoretical distance for pure electric driving The longer it goes up. 3. How to calculate the energy consumption of electric vehicles? km/kWh? Fuel vehicles and electric vehicles both consume energy to drive, while gasoline and diesel vehicles have "fuel consumption", and of course electric vehicles also have "electricity consumption". The formula is calculated to the "joule" (J) unit, which can be compared in the same unit; however, this topic does not discuss issues at this level, but how to calculate the energy consumption performance of electric vehicles. | |
| Target State: All States Target City : All Cities Last Update : 25 October 2023 7:06 PM Number of Views: 72 | Item Owner : chenjinghao Contact Email: (None) Contact Phone: (None) |
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2024-05-07 (0.223 sec)