System for quickly changing chassis battery for electric passenger vehicle based on cartesian robot

Abstract

The invention relates to a system for quickly changing a chassis battery for an electric passenger vehicle based on a cartesian robot. The system comprises an electricity charging platform; the electricity charging platform, a quick-change robot and a charging support are positioned on the same line; the quick-change robot comprises a battery tray and a four-freedom-degree cartesian robot; On the four-freedom-degree cartesian robot, an X-axis double-track rack is provided with an X-axis driving motor which is matched with the X-axis double-track rack, a Y-axis double-track rack is provided with a Y-axis driving motor which is matched with the Y-axis double-track rack, and a Z-axis double-track rack is provided with a Z-axis lifting motor which is matched with the Z-axis double-track rack, the battery tray is arranged on the Y-axis double-track rack and is connected with an R-axis driving motor which is matched with the battery tray; all driving motors are connected with corresponding encoders which are connected with corresponding drivers; the battery tray is provided with a distance measurement senor, and two ends of each double-track rack are provided with corresponding limit switches; and the drivers of all driving motors, all limit switches and the distance measurement sensor are all connected with a control system.

Description

technical field [0001] The invention relates to a control system for an electric vehicle battery replacement robot, in particular to an electric passenger vehicle chassis battery quick replacement system based on a Cartesian robot for an automatic and fast replacement robot for an electric passenger vehicle chassis battery. Background technique [0002] As the world's energy and environmental problems become more and more serious, electric energy, as a clean energy source, is widely used in the automotive field, providing a broad application space for electric vehicles. However, due to the limitation of the current battery energy density, the cruising range of electric vehicles is generally between 100 kilometers and 200 kilometers, which is far less than that of traditional cars. Therefore, whether energy supply can be quickly provided for automobiles directly affects the popularization and application of electric vehicles. It takes several hours to charge the battery, and...

AI Technical Summary

Problems solved by technology

[0005] The invention patent of the State Intellectual Property Office of China with the patent number CN101559758A discloses a quick replacement system for chassis batteries. Since the system only includes the connecting parts between the battery and the vehicle, and does not have any positioning and guiding devices, the system cannot be realized. Automatic battery replacement

The invention patent with the patent number CN201784595U discloses an automatic battery replacement system for electric vehicles, which includes a vehicle positioning platform and lifting equipment. Since the positioning platform of this system only realizes the positioning of the vehicle in the front and rear directions, When there is an included angle between the chassis and the horizontal plane (the chassis is tilted at a certain angle), the lifting equipment will cause over-lifting or insufficient lifting when lifting the battery box, which will cause potential safety hazards for the vehicle after battery replacement

At the same time, the system proposes a method for chassis battery replacement, and proposes to use inclined plane pins to position the battery. However, this purely mechanical battery positioning method has large errors and no information feedback, and it is easy to damage the battery.

Secondly, the system does not have the function of automatically identifying the battery

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