Power system and method for pure electric washing and sweeping vehicle

Abstract

The invention belongs to the technical field of special vehicle design and manufacture, particularly relates to a power system and method for a pure electric washing and sweeping vehicle, and solves the technical problems that the existing pure electric washing and sweeping vehicle has a complex design and high cost and energy consumption and increases in weight and turning radius. A power assembly is matched with a full power takeoff and a partial power takeoff. The full power takeoff takes power from a motor to drive an upload fan, and at the same time, drives a high-pressure water pump through belt drive. The partial power takeoff takes power from a transmission to drive a low-pressure water pump or a hydraulic oil pump. The full power takeoff and the partial power takeoff can both achieve driving and parking power takeoff, and at the same time, are used for driving whole vehicle running and movement of upload components. When a full power takeoff scheme is adopted, the consumed power of the fan and the high-pressure water pump is 40 to 60 KW. When a partial power takeoff scheme is adopted, the consumed power of the low-power water pump and the hydraulic oil pump is 20 to 30 KW.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of special vehicles, and in particular relates to a power system and method of a pure electric washing and sweeping vehicle. Background technique [0002] Urban commercial vehicles take "energy saving, environmental protection, aesthetics, and comfort" as the development direction. As a subcategory of urban commercial vehicles, sanitation vehicles have an obvious trend of electrification. Supporting policies, including new cities for the promotion of new energy applications, the proportion of new energy vehicles in updated vehicles not less than 30%, new energy vehicles exempt from vehicle purchase tax and a certain amount of subsidies, etc., further promote the development of pure electric sanitation vehicles . [0003] Sweeping vehicles are the most sold type in the field of sanitation vehicles. The upper body structure is more complicated, and the moving parts include fans, high...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides a power system and method of a pure electric sweeper, which solves the technical problems of the existing pure electric sweeper, such as complex design, high cost and energy consumption, increased weight and turning radius, and the powertrain Matching full-power PTO and partial power PTO, the full-power PTO obtains power from the motor to drive the top-mounted fan, and drives the high-pressure water pump through belt transmission, and the partial power PTO obtains power from the transmission to drive the low-pressure water pump or hydraulic oil pump , full-power PTO and partial power PTO can realize driving and parking power take-off, and at the same time, it is used to drive the whole vehicle to drive and the upper parts to move. Among them, the power consumption of the fan and high-pressure water pump is 40-60KW when the power is taken at full power. Power scheme, when the low-pressure water pump and hydraulic oil pump consume power at 20-30KW, a partial power take-off scheme is adopted

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