Constant-power control method for equipment mounted on pure electric compression type garbage truck

Abstract

The invention provides a constant-power control method for equipment mounted on a pure electric compression type garbage truck. The method comprises performing working mode selection through a state signal of a multi-way valve, if a garbage can rises, a scraper plate performs scraping joining or a slide plate performs rising motion, entering a constant-power working mode; and if other motions are performed, entering a constant-rotating-speed operation mode. In the constant-power working mode, an outlet pressure of a hydraulic pump is detected. If the outlet pressure exceeds a preset pressure of an overflow valve, a motor rotating speed is set to a least allowed rotating speed, and otherwise, a motor target rotating speed is calculated according to a pressure-rotating-speed constant-power relationship. If the calculated rotating speed exceeds a maximal allowed rotating speed, the motor rotating speed is restricted to the maximal allowed rotating speed. If the calculated rotating speed does not exceed the maximal allowed rotating speed, the motor is operated according to the calculated rotating speed. According to the constant-power control method, not only can operation efficiency of the equipment mounted on the pure electric compression type garbage truck be improved, but also overflow loss of the hydraulic pump can be reduced, thereby prolonging duration mileage of an electric vehicle.

Description

technical field [0001] The invention relates to a constant power control method for top-loading equipment of a pure electric compression garbage truck. Background technique [0002] With the continuous strengthening of people's awareness of environmental protection, local governments have increasingly higher requirements for emissions, and pure electric vehicles have the advantages of zero emission, low noise and high efficiency, so they are more and more valued by the state and enterprises. Various pure electric vehicles Cars have been introduced to the market in large numbers. At present, the application of electric vehicles has gradually penetrated into the fields of special vehicles such as sanitation, postal services, and logistics. [0003] The compressed garbage truck is a special vehicle for urban sanitation that efficiently collects and transfers garbage. During the garbage collection and transfer process, it can avoid secondary pollution caused by spilling along t...

AI Technical Summary

Problems solved by technology

Moreover, the above three types of actuators are frequently used in the working process of compression garbage trucks. Therefore, the traditional constant speed control method will affect the operating efficiency and energy saving effect of the equipment.

Images