Range extender of city electric motor coach based on electric air conditioner and control method for range extender
A technology of electric passenger cars and control methods, which is applied in the fields of electric vehicles, control drive, electric energy management, etc., can solve the problems of high fuel consumption and large volume, and achieve the effects of enhancing economy, reducing volume, and reducing fuel consumption
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specific Embodiment approach 1
[0026] Specific implementation mode one, combining figure 1 Describe this embodiment, the city electric bus range extender based on electric air conditioner described in this embodiment includes prime mover 4, generator 5, AC / DC converter 6, engine electronic controller 7, generator controller 8 and extender A programmer controller 9, the power output shaft of the prime mover 4 is connected to the power input shaft of the generator 5, the electrical output terminal of the generator 5 is connected to the AC input terminal of the AC / DC converter 6, and the AC / DC conversion The DC signal output end of the device 6 is the power signal output end of the city electric bus range extender; the speed signal output end of the range extender controller 9 is connected with the speed signal input end of the engine electronic controller 7, and the engine electronic controller The control signal output terminal of 7 is connected with the control signal input terminal of the prime mover 4, th...
specific Embodiment approach 2
[0028] Specific implementation mode two, combining figure 1 Describe this embodiment, the difference between this embodiment and the urban electric bus range extension based on electric air-conditioning described in Embodiment 1 is that the range extender also includes a voltage sensor 15 and a current sensor 16, and the voltage sensor 15 is used to collect Input the working voltage signal of the electric air conditioning control system 3, the voltage signal output terminal of the voltage sensor 15 is connected with the range extender controller 9 through the data bus, the current sensor 16 is used to collect the working current signal of the input electric air conditioning control system 3, the current sensor The current signal output terminal of 16 is connected with the range extender controller 9 through the data bus.
[0029] During the actual application of the range extender for urban electric buses based on electric air conditioners described in this embodiment, the two...
specific Embodiment approach 3
[0030] Specific embodiment three, the difference between this embodiment and the urban electric passenger car range extension based on electric air-conditioning described in specific embodiment one is that the generator (5) is selected through the following steps:
[0031] a. Determine the rated power of the prime mover and the rated power of the generator according to the average output power range required by the air conditioner operation of the electric bus;
[0032] B. According to the rated power of the prime mover, select a suitable prime mover (4), and measure the speed range of the high-efficiency working area of the prime mover (4) through experiments;
[0033] C, according to the rotating speed range of the high-efficiency working area of prime mover (4), determine the rated rotating speed of generator (5);
[0034] d. Determine the output torque range of the generator (5) according to the efficient working area range of the prime mover (4);
[0035] e. Calculat...
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