How about the ramp up of new energy vehicles? How many degrees does the new energy vehicle climb uph

The climbing performance is very good.

The performance of climbing mainly depends on the torque of the power source.

The motor of an electric vehicle has a special torque when starting at low speeds, which is much larger than the engine. So the climbing performance is very good.

The figure below shows Tesla's power and torque curves, from which you can see that the solid part is the maximum torque, which can cover a long speed area (according to the diagram, it is about 0 40 mph, that is, about 0 65 kilometers per hour), which is the characteristics of the electric motor.

For example, Changan Benben EV is a mini car, the torque of the motor can reach 170Nm, and it can cover a long speed range. On the other hand, the engine of the Honda Accord, this mid-level car, can only burst 190Nm of torque at 4300 rpm, which means that the torque of a micro electric car is basically equivalent to the maximum torque of a mid-level gasoline car, and it can also cover a relatively long speed range.

Therefore, the climbing performance of electric vehicles is generally better than that of gasoline vehicles.

New energy vehicles should be no problem climbing. But it also depends on the specific model, mainly to see its output torque, the torque of many new energy vehicles is higher than the torque of ordinary cars. Now the lottery is really troublesome, and there are subsidies from the state to buy new energy vehicles, but you must make sure that you can charge it and the cruising range is enough for you to use.

Good luck!

The EV200 speed is only 1 second from 0 50 kilometers per hour, 1 second higher than the second of competing products of the same level, and the acceleration is only 2 seconds from 50 to 80 kilometers per hour, which is second higher than that of competing products of the same level, and the acceleration time from 0 100 kilometers per hour is only 16 seconds, and the climbing ability is super strong.

New energy vehicles also have good cars and bad cars, just like fuel vehicles. EV200 This car, first, has a long range, second, it is powerful, and the power is strong, and there is still a hill climb? And BAIC is also a big manufacturer.

The maximum slope of K60 new energy climbing Huqiao is 25%, and the steepest slope that can be climbed is 14 ° Hello, although the electric car has a large torque and fast speed, but the trouser ruler is a strong climb is its weakness. The most sleepy rise of the small car ramp "Automobile Design Regulations" stipulates that the straight ramp is 15% (, and the curved ramp is 12% (when the longitudinal slope of the car ramp is greater than 10%. Therefore, don't consider the slope of the electric car over 20°, it is easy to burn the motor!

Some models have an L gear in addition to the D gear. L gear means low gear, and by adjusting the gear to L gear, you can fix the gear of the transmission between 1-2 gears. When climbing a hill, a lot of torque is needed to propel the car up and overcome the ramp resistance.

2. There are also models with D1 and D2 gears. In fact, the principle is the same as the L gear, D1 gear locks the gear in 1st gear, and D2 gear locks the gear in 1-2 gear.

The low-gear torque is large, and the car is powerful. Generally, there are 1st and 2nd gears. 1st gear – always in 1st gear and 2nd gear – always in between gears. In D gear, if the car climbs without grinding due to refueling and upshifting, it will cause stalling.

Generally speaking, the gears of the automatic transmission of the automatic transmission are divided into P, R, N, D, 2 (or S), L (or.

1) etc. When going downhill, the limit gear is used as an auxiliary brake, and we all know that the manual transmission car is driving in the mountains, and when going down a long slope or a large slope (of course, there is no need to operate this way when going down a small slope), it can be hung in a lower gear as an auxiliary brake; At this time, you can hang into the limit gear, and use the limit gear to rise to achieve auxiliary braking with the engine as the brake, so as to reduce the working pressure of the brake pads. It can be used with foot brakes and manual low-gear cross-use to reduce brake wear.

Limit gear can sometimes be used as a forced downshift, that is, when a strong torque output is needed for a long time, the gear can be controlled at a lower gear to achieve, or when overtaking, you can directly base the gear to pull the gear down.

Photo by Q&A) NIO EC6 Xpeng P7 Marvel R VOYAH Free Audi A4L Model Y @2019

Pure electric vehicles, with batteries as energy storage devices and road vehicles with motors as the driving device. Because motorcycles, mining cars, and railway locomotives are not familiar to me. Under the same curb weight, the climbing ability of pure electric vehicles is indeed inferior to that of internal combustion engine-powered vehicles.

The evaluation of vehicle dynamics is the maximum speed, the acceleration time from stationary to the specified speed, and the maximum climbing degree. For internal combustion engine transmission structure cars, these three indicators are related to engine characteristics (speed, torque, power) and transmission speed ratio matching. Usually after the first two designs of power, designers will find that the climbing degree will be very large, far more than the actual needs, and it is common for the sedan to reach % of the lowest gear climb.

Therefore, the national standard does not require the climbing degree of internal combustion engine vehicles. However, in the standard for pure electric vehicles, the climbing degree of cars and light-duty buses is required, including ramp starting ability, 4% and 12% ramp top speed. And a lot of the data we actually calculated also shows that it is somewhat difficult for pure electric vehicles to reach a 30% ramp-up.

Let's start with the core components of a pure electric vehicle: the motor and the battery. First of all, the motor, to put it simply, now pure electric vehicles are generally not equipped with multi-gear gearboxes, only a fixed speed ratio, if the maximum speed of the motor and the base speed ratio is small, then it is difficult to meet the requirements of the maximum speed and the maximum climbing degree at the same time.

Often, the design value of the climbing degree just meets the minimum requirements of the type test, so the backup power is low, and the climbing ability is poor. Another reason that limits the climbing ability of BEVs is the battery, to be precise, the battery capacity sub-limit. Now the car lithium-ion battery allows a maximum of 10C rate discharge, so it is a bit difficult to understand, in other words, it takes 6 minutes to discharge the battery, but in this case, the car can only climb a few minutes of the first brother of the slope, and then it will be completely lying on the nest.

Therefore, the control software of pure electric vehicles has done a lot of calibration work on the discharge conditions, and strives to have a good compromise between driving range and power. Because of pure electric cars, its power is just a balanced, they have explosive power, so the climbing is not good, his power is not very sufficient, so the climbing performance is not very good, in fact, this is why many people do not choose electric vehicles and electric vehicles Now electric vehicles use reducers (non-gearbox, there are also two-speed transmissions) just to take care of normal urban road conditions. Power = Torque * Speed.

When the electric vehicle is at low speed, the motor works in the transverse torque state, that is, the torque does not change. The output torque does not increase when the motor speed decreases (operating at the rated output torque of the motor). The car uses a gearbox (which can be considered as a segmented constant power).

At low speeds, there is a lot of power, that is, a lot of torque. @2019