Is there a bus to Yangzhou in Zhenjiang passenger transport cent
VDC is a vehicle driving dynamic control system
in order to make the VDC vehicle dynamic control system actively control the dynamic performance of the vehicle, the VDC vehicle dynamic control system must combine the functions of ABS anti lock braking system, TCS tracking control system, BLSD brake type anti slip differential and other systems to control the rotation speed of the four wheels to change the attitude of the vehicle in driving, And make the vehicle on the road with a better route to travel
with the control of VDC, the vehicle in non-linear state can have the best driving route, which can improve the stability of the vehicle in driving, especially when the vehicle is on the wet road or in the corner, so as to improve the stability of the vehicle and greatly increase the safety of the vehicle in driving
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after rain, there will be pools of ponding on the road e to uneven road surface or poor drainage system. In order to absorb a large amount of phenytoin in the forest, it is necessary to go through the winding mountain road
the above road conditions have the opportunity to make the vehicle difficult to control. In order to enable the driver to safely take the vehicle out of the danger zone when it is difficult to control the panic of the vehicle, and to safely bring the vehicle on the edge of losing control back to the normal driving route, or to prevent the vehicle from getting out of control when it is extremely controlled, the "VDC vehicle dynamic control system" which can actively control the dynamic performance of the vehicle comes into being
according to your description, the English name of VDC is vehicle dynamics control, and the Chinese name is vehicle dynamic control system
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Vac is AC voltage, VDC is DC voltage! The VAC and VDC on the capacitor indicate that the working environment is different! One is to work in the environment of alternating current, the other is to work in the environment of direct current
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alternating current (AC) refers to the current whose size and direction change periodically, because the average value of periodic current in a cycle is zero, which is called alternating current or AC. The English abbreviation is AC. The direction of different direct current is the same. Generally, the waveform is sinusoidal. Alternating current can transmit electricity effectively
direct current (DC), also known as constant current, is a kind of DC, which is constant in size and direction. It was discovered by Edison. In 1747, Franklin of the United States proposed the law of conservation of charge based on experiments, and defined the terms of positive and negative charge. Constant current refers to the size (voltage) and direction (positive and negative) do not change with time (relative range), such as dry cell
direct current (DC) is a unidirectional flow or movement of charges, usually electrons. The current density varies with time, but usually the direction of movement is the same at all times. As an adjective, DC can be used as a reference voltage (its polarity will never change)
VDC: DC voltage volt, VAC: AC voltage volt
DC means DC. DC power supply is a device to maintain the steady current in the circuit. Such as dry battery, storage battery, etc. Com stands for common end
VDC stands for the meaning of DC power supply and the number of volts of voltage, in which V means voltage in English, and the unit symbol is volt. DC means DC power supply. For example, 24 volts DC can be marked as 24 VDC
In DC circuit, electrons form from cathode, negative pole and negative pole and move to anode, positive pole and positive pole. However, physicists define direct current as the movement from the positive to the negativedirect current is generated by electrochemical and photoelectric cells and batteries. On the contrary, in most countries, the current flowing from the equipment is AC. Alternating current can be converted to direct current through a power supply consisting of a converter, a rectifier (which prevents the current from flowing in the opposite direction), and a filter (which eliminates the pulsation in the current flowing from the rectifier)
In fact, all electronic and computer hardware need DC power to work. Most solid state devices require voltages in the range of 1.5 to 13.5 voltsthe demand for current ranges from close to 0 in electronic watches to more than 100 amperes in wireless communication power amplifiers. Devices that use vacuum tubes, such as high-energy radio or television transmitters or cathode-ray tube (CRT) displays, require about 150 to several thousand volts of DC
Rated voltage refers to the best voltage when electrical equipment works normally for a long time, also known as nominal voltage. When the working voltage of the electrical equipment is higher than the rated voltage, it is easy to damage the equipment, but when it is lower than the rated voltage, it will not work normally (such as abnormal light emission of the bulb and abnormal operation of the motor)
Underrated voltage, electrical equipment, generators and transformers have the maximum economic benefits in normal operation. At this time, all parts of the equipment work in the best state, the performance is relatively stable, and the service life is relatively long. Specifying the rated voltage of electrical equipment is concive to the standardization and serialization of electrical manufacturing instry, the standardization and selection of design, the interconnection and replacement of electrical equipment, and the proction and maintenance of spare parts. In addition, in order to avoid the unlimited expansion of the number of voltage levels, resulting in interconnection difficulties, it is necessary to standardize the rated voltage of power grid. In order to achieve the best technical and economic performance, power equipment needs to be optimized in the design, manufacture and use of rated voltage
the calculation method of rated voltage of electrical appliances is the same as that of ordinary voltage, but it is usually a fixed value to match with the power supply system. The rated voltage of electric equipment is consistent with that of power grid. In fact, e to the voltage loss in the power grid, the actual voltage of each point deviates from the rated value. In order to ensure the good operation of electrical equipment, the state has strict regulations on the voltage deviation of power grid at all levels. Obviously, electrical equipment should have a wider normal working voltage range than the allowable deviation of grid voltage
the rated voltage of general electrical appliances in China is 220 V (single wire electrical appliances, such as daily electrical appliances) or 380 V (three wire electrical appliances, such as high-power motors). The label of electrical equipment will mark its rated voltage and rated power, such as bulb "pz220-40", hair dryer "220V 1000W", of which 220 represents the rated voltage
