Power-driven operating vehicle power supply system and switching control method thereof
A technology of power supply system and operating system, which is applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problems of poor fuel economy and serious emission pollution.
Inactive Publication Date: 2012-04-18
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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Problems solved by technology
Therefore, sanitation vehicles have poor fuel economy and serious emission pollution.
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[0092] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0093] The electric work vehicle power supply system of the present invention includes a chassis power system power supply circuit and an operation system power supply circuit, and the chassis power system power supply circuit includes a chassis battery and a drive motor system connected between the positive and negative poles of the chassis battery The power supply circuit of the working system includes a working battery and a working motor system connected between the positive and negative poles of the working battery, and the power supply circuit of the chassis power system is connected across the power supply circuit of the working system There is a DC contactor, and the on-off state of the DC contactor is controlled by the vehicle controller, so that the drive motor system and the working motor system are connected in parallel between the...
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The invention relates to a power-driven operating vehicle power supply system and a switching control method thereof, mainly adopting two paths of supply circuits, wherein one path supplies power to a chassis power system, and the other path supplies power to an operating system. Two paths are connected by a DC contactor, and any one battery pack can simultaneously supply power for two motor driving systems; meanwhile, the invention relates to the switching control method for the power supply system on the basis of a driving request and a battery SOC. The power-driven operating vehicle power supply system and the switching control method thereof improve the popularity of the power-driven operating vehicle power-driven system, lower production cost and fully utilize the characteristics of the power supply system of two battery packs; when one battery pack has no available electric energy or a battery management system has faults and the like, vehicles still can be driven or operated, thus improving system reliability; the power-driven operating vehicle power supply system has simple and practical structure, quick and convenient use, stable and reliable service ability and wide applicable range.
Description
technical field [0001] The invention relates to the field of automobile power supply, in particular to the technical field of electric vehicle power supply system control, in particular to an electric vehicle power supply system and a switching control method thereof. Background technique [0002] With the acceleration of the urbanization process, various urban operating vehicles are constantly appearing, and various places need these operating vehicles to maintain the urban public environment continuously, the most important of which is the urban sanitation vehicle, and its demand is also growing simultaneously . At present, the sanitation vehicles used for urban road cleaning mainly include sprinklers, road sweepers and garbage removal vehicles. Compared with other vehicles, the operating conditions of sanitation vehicles have the following characteristics: low speed, generally running on urban roads, such as sprinklers working while driving, the speed is generally betwee...
Claims
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IPC IPC(8): B60R16/02B60R16/03H02J7/00
Inventor 熊伟威宁兴江孙江明
Owner SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE