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How about endurance

Publish: 2021-04-19 01:31:50
1. The maximum range at cruise speed is enrance. At this speed, the fuel consumption of ships and aircraft is small, and they can support a longer range. However, under operational conditions, they may not follow the cruise speed, so the enrance is generally not guaranteed, and the captain or captain will master the supply according to the actual fuel consumption.
2. 440ah * 110V / 4000 = 12.1 hours
3. Assuming that the current is I, the capacity of the battery is C, the efficiency of the motor is 70% (if it is a pure resistance load, this item is not included), and the battery must store 20% of the power and cannot be used up, then t = C * 80% * 70% / I, if only the power is known, I = P / u.
4. The mileage of an electric vehicle (subject to the "enrance time") is related to the power of the motor, as well as the power supply capacity of the battery, road conditions, load, etc
that is, the battery's power supply capacity (voltage) × Capacity, i.e. 60V × 20AH = 1200Wh ÷ The motor power (W) is calculated in hours<

when the battery capacity is fixed, the battery voltage is basically proportional to the range:
800W motor 60v20ah theoretical range is about 80km
500W motor 48v20ah theoretical range is about 50km
350W motor 48v12ah theoretical range is about 40km
5. Enrance time is also called "enrance time". It refers to the time that an aircraft can fly continuously when it runs out of available fuel without refueling in the air. Enrance is one of the most important performance indexes of aircraft, which directly indicates the sustained combat or flight capability of aircraft after refueling. The enrance time is related to many parameters such as flight speed, flight altitude, engine working state and so on. Reasonable selection of flight parameters can make the aircraft consume the least fuel per unit time, and the aircraft can get the longest enrance. At this time, the corresponding cruise speed is called "enrance speed".
6.

The average electric car has a 60 km range. It is estimated that it will be shorter in winter and better in summer. If you choose the type of big pedal, the battery will be bigger and the range will be longer

7. You have to have the CSR fuel consumption of the main engine
if you know that the CSR power of the main engine of a ship is 9000kw
the main engine fuel consumption obtained from the workshop test is 170g / kW. HR
the enrance is 22000 nautical miles, the speed is 14.5 knots

the minimum fuel required is
220000 / 14.5 = 1517 sailing hours
1517 * 9000 * 170 / 1000000 = 2321 tons
see, at least you have so much fuel, Actually, we have to add some margin
8.

According to the calculation of 64v20a battery and 500W electric motor, the driving range is about = 20 / (500W / 64V / 20a) * 80% * 30km / h = 61.44km. That is to say, if your electric vehicle runs under normal conditions (the road is in good condition, the temperature is above 10 degrees and below 35 degrees, and only carries one person), the motor efficiency can reach 80%, then you can continue to drive about 61 km

the lead-acid batteries are assembled at 12V / piece, and three or four lead-acid batteries are used in series, i.e. 36V and 48V, while four lead-acid batteries with 18V are used in series, i.e. 64V and 70V. How many kilometers an electric vehicle can run is called mileage in the instry. It is not only related to battery voltage and current, but also related to motor type, rated power, output efficiency and load

< H2 > extended data

the working condition of the maximum driving range is actually an ideal environment. To put it bluntly, in this condition, there are no other cars on the road except you, and there are no uphill, downhill and turning. It is always straight, and the speed can only keep 60km / h. of course, the weather and other external conditions will not be taken into account, In this case, the so-called maximum range can be obtained

as for the comprehensive driving range, it is closer to the daily driving environment. The test conditions may be better than the daily driving environment, but the test process will also involve acceleration and deceleration and other related links, so that the vehicle can provide different power output. Old drivers know that driving a gasoline car often leads to higher fuel consumption. The same is true for electric vehicles. Frequent starting and parking will also lead to higher power consumption, which will affect the driving range of the vehicle

9. Hello, the mileage is calculated by the computer according to your previous flat road fuel consumption and the remaining fuel in the fuel tank. I'm glad to answer your question. I hope it can help you. Have a good time Car problem, ask car master. 4S shop professional technician, 10 minutes to solve
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